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| 1 | Preoperative administration of intramuscular dezocine reduces postoperative pain for laparoscopic cholecystectomy显示文摘Postoperative pain is the most common complaint after laparoscopic cholecystectomy.This study was carried out to evaluate whether preoperative administration of intramuscular dezocine can provide postoperative analgesia and reduce postoperative opioid consumption in patients undergoing laparoscopic cholecystectomy.Patients (ASA Ⅰ or Ⅱ) scheduled for laparoscopic cholecystectomy were randomly assigned into intramuscular dezocine group (group 1) or intramuscular normal saline group (group 2).Dezocine and equal volume normal saline were administered intramuscularly 10 min before the induction of anesthesia.After operation,the severity of postoperative pain,postoperative fentanyl requirement,incidence and severity of side-effects were assessed.Postoperative pain and postoperative patient-controlled fentanyl consumption were reduced significantly in group 1 compared with group 2.The incidence and severity of side effects were similar between the two groups.Preoperative single-dose administration of intramuscular dezocine 0.1 mg/kg was effective in reducing postoperative pain and postoperative patient-controlled fentanyl requirement in patients undergoing laparoscopic cholecystectomy. | Yaomin Zhu Guixia Jing Wei Yuan | 2011 | The Journal of Biomedical Research2011，25，5： | 138 |
| 2 | A brief review of graphene-based material synthesis and its application in environmental pollution management显示文摘Graphene is an interesting two-dimensional carbon allotrope that has attracted considerable research interest because of its unique structure and physicochemical properties. Studies have been conducted on graphene-based nanomaterials including modified graphene, graphene/semiconductor hybrids, graphene/metal nanoparticle composites, and graphene-complex oxide composites. These nanomaterials inherit the unique properties of graphene, and the addition of functional groups or the nanoparticle composites on their surfaces improves their performance. Applications of these materials in pollutant removal and environmental remediation have been explored. From the viewpoint of environmental chemistry and materials, this paper reviews recent important advances in synthesis of graphene-related materials and their application in treatment of environmental pollution. The roles of graphene-based materials in pollutant removal and potential research are discussed. | LU Kui ZHAO GuiXia WANG XiangKe | 2012 | Chinese Science Bulletin2012，57，11： | 24 |
| 3 | Geochemical characteristics of natural gas from mud volcanoes in the southern Junggar Basin显示文摘A number of mud volcanoes exist in the southern Junggar Basin. To date few systematic studies on natural gas geochemistry of mud volcanoes have been conducted in China. In June 1991 and August 2010, the authors investigated the mud volcanoes in the southern Junggar Basin twice, and the mud volcanism weakened gradually as seen from the variations such as the decrease of gas pressure and output, the downthrow and dry up of the mud pool. The volcanic intensity was significantly weaker than that in Taiwan. The natural gas from the mud volcanoes in the southern Junggar Basin has similar geochemical characteristics, indicating the same source or origin. The main component of the mud volcano gas is alkane gas with contents of 91.15%-97.49%, and the gas is high-quality commercial gas since methane dominates in the alkane. The 13C1 values are 49.1‰--40.6‰, which are in accordance with the peak 13C1 frequency of mud volcano gas around the world, and the alkane gas displays positive carbon isotopic series, i.e., 13C1< 13C2< 13C3, suggesting typical thermogenic origin. The helium in the mud volcano gas is typically crust-derived due to the low R/Ra values of 0.011-0.054. The mud volcano gas is coal-derived since the 13C2 values are all greater than 28‰, and C1/C1-4 and 13C1 values are in accordance with those of natural gas derived from the Lower-Middle Jurassic coal-measures. Therefore, alkane gas from mud volcanoes in the southern Junggar Basin is mainly sourced from the Lower-Middle Jurassic coal-measures. | DAI JinXing WU XiaoQi NI YunYan WANG ZeCheng ZHAO ChangYi WANG ZhaoYun LIU GuiXia | 2012 | Science China Earth Sciences2012，55，3： | 13 |
| 4 | Pediatric reference intervals in China(PRINCE):design and rationale for a large,multicenter collaborative cross-sectional study显示文摘There is a lack of accurate pediatric reference intervals(RIs) in China, with most commonly used RIs established without consideration of the effect of age and gender. The Pediatric Reference Intervals in China(PRINCE) project aims to establish and verify pediatric RIs for 31 common laboratory measurands.The project will be a large, multicenter cross-sectional study:14,490 healthy children and adolescents aged up to 19 years will be surveyed by 10 children's hospitals and one pediatric department of a university hospital. To evaluate the feasibility and efficiency of the study methods, 602 children were surveyed in the pilot phase of the PRINCE study in April 2017: it found that some measurands were distinctly age dependent and that there were differences between values for males and females. The results of the pilot study affirmed the necessity of the PRINCE project for Chinese pediatrics. The pilot also indicated potential difficulties in the full survey, e.g., difficulties in recruiting children aged under 3 years and insufficient collection of blood samples from infants. The operation of the PRINCE project has been modified based on the findings in the pilot study toward improving the validity of the PRINCE project and promoting its openness and transparency. | Xin Ni Wenqi Song Xiaoxia Peng Ying Shen Yaguang Peng Qiliang Li Yan Wang Lixin Hu Yanying Cai Hong Shang Min Zhao Hong Jiang Yaoguo Huang Runqing Mu Wenxiang Chen Mingting Peng Chuanbao Zhang Jie Zeng Chenbin Li Hongling Yang Yongmei Jiang Jin Xu Guixia Li Hongbing Chen Yun Xiang Sancheng Cao Zhenxin Guo Dapeng Chen | 2018 | Science Bulletin2018，63，24： | 12 |
| 5 | Duplication and Divergence of Floral MADS-Box Genes in Grasses: Evidence for the Generation and Modification of Novel Regulators显示文摘开花的过程被充当开花时间基因, inflorescence/floral 分裂组织身份基因,或 floralorgan 身份基因的花的基因的一个层次控制。最重要、描绘得好的花的基因是属于抄写因素的疯盒子的家庭的那些。引人注目的证据建议花的 MADS-boxgenes 经历了一些大规模复制事件。特别地,核心前 eudicotduplication 事件被认为与 coreeudicots 的出现和多样化相关。花的疯盒子的基因的复制也在单音的简易窄床被记录了,特别地在草,尽管系统的研究正在缺乏。在现在的学习,由进行广泛的种系发生的分析,我们在每 AP1, PI, AG, AGL11, AGL2/3/4,和 AGL9 识别了 pre-Poaceae 基因复制事件基因系。比较 genomic 研究进一步显示一些这些复制实际上源于加倍事件的染色体那发生 66-70 百万年以前(MYA ) 。另外,我们在基因复制以后发现了那, exonization (intronsequences ) 并且 pseudoexonization (序列上的前) 在顺序结构并且,可能贡献了副本基因的分叉基因功能…… | Guixia Xu Hongzhi Kong | 2007 | Journal of Integrative Plant Biology2007，49，6： | 9 |
| 6 | Covalently integrated core-shell MOF@COF hybrids as efficient visible-light-driven photocatalysts for selective oxidation of alcohols显示文摘Building a covalently connected structure with accelerated photo-induced electrons and charge-carrier separation between semiconductors could enhance the photocatalytic performance.In this work,we report a facile and novel seed growth method to coat NH2-MIL-125 MOFs with crystalline and porous covalent organic frameworks(COFs)materials and form a range of NH2-MIL-125@TAPB-PDA nanocomposites with different thicknesses of COF shell.The introduction of appropriate content of COF could not only modify the intrinsic electronic and optical properties,but also enhance the photocatalytic activity distinctly.Especially,NH2-MIL-125@TAPB-PDA-3 with COF shell thickness of around 20nm exhibited the highest yield(94.7%)of benzaldehyde which is approximately 2.5 and 15.5 times as that of parental NH2-MIL-125 and COF,respectively.The promoted photocatalytic performance of hybrid materials was mainly owing to the enhanced photo-induced charge carriers transfer between the MOF and COF through the covalent bond.In addition,a possible mechanism to elucidate the process of photocatalysis was explored.Therefore,this kind of MOF-based photocatalysts possesses great potentials in future green organic synthesis. | Guilong Lu Xiubing Huang Yang Li Guixia Zhao Guangsheng Pang Ge Wang | 2020 | Journal of Energy Chemistry2020，29，4： | 5 |
| 7 | High-mobility group protein N2 (HMGN2) inhibited the internalization of Klebsiella pneumoniae into cultured bladder epithelial cells显示文摘因为进主人房间的细菌的侵略是在感染过程的重要的步,使用代理人防碍细菌的成为主观是一条吸引人的途径堵住感染过程。在这个工作,我们在 Klebsiella pneumoniae 感染期间描述人的 cationic 主人防卫肽 HMGN2 的一个新、以前未被认出的角色。我们的结果揭示了 K 的成为主观。进有教养的膀胱的 pneumoniae 紧张 03183 上皮的房间(T24 ) 显著地在是不能的生产任何细菌抑制或杀菌的效果的 HMGN2 集中被减少。用 microarrays 和后续研究,我们证明 HMGN2 影响了 K 的成为主观。由禁止细菌的附件,然后减少的 pneumoniae 紧张 03183 导致细菌的 ERK1/2 激活和肌动朊聚合,它可能贡献细菌的成为主观进 T24 房间。细菌的成为主观的这混乱暗示 HMGN2 能对 K 提供保护。pneumoniae 感染。 | Guixia Wu Yue Cao Bo Fan Fengjin Zheng Xiang Gao Na Liu Xiaokang Liu Ning Huang | 2011 | Acta Biochimica et Biophysica Sinica2011，43，9： | 4 |
| 8 | Global characteristics of the second-order ionospheric delay error using inversion of electron density profiles from COSMIC occultation data显示文摘It is a well known fact that ionospheric delay error is a predominant factor which influences the positioning accuarcy of GNSS.Although the main part of the first-order ionospheric delay error can be removed by the frequency-dependent behaviors of the ionosphere,the second-order ionospheric delay error must be eliminated to achieve millimetre-scale positioning accuracy.Due to COSMIC occultation providing electron density profiles on the global scale,the paper presents the first-order and the second-order ionospheric delay error analysis on the global scale using the inversion of electron density profiles from COSMIC occultation data during 2009–2011.Firstly,because of the special geographical location of three ISR(incoherent scatter radar),the first-order and the second-order ionospheric delay errors are calculated and discussed;the paper also shows and analyzes the diurnal,seasonal,semi-annual variation of ionospheric delay error with respect to signal direction.Results show that for the L1 signal path,the first-order ionospheric delay error is the largest near the equator,which is circa 7 m;the maximum second-order ionospheric delay error are circa 0.6 cm,0.8 cm and 0.6 cm respectively for L1 signals coming from the zenith,the north and the south at 10 degree elevation angles.The second-order ionospheric delay error on the L1 signal path from zenith are the symmetry between 15°and 15°with respect to magnetic equator,and are nearly zero at the magnetic equator.For the first time,the second-order ionospheric delay error on the global scale is presented,so this research will greatly contribute to analysing the higher-order ionospheric delay error characteristics on the global scale. | WANG Hu WANG Cheng WANG JieXian DANG YaMing BAI GuiXia WANG QianXin | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，2： | 4 |
| 9 | Development of an innovative one-step nested PCR strategy for virus detection using the LNA technique显示文摘Dear Editor,Polymerase chain reaction(PCR)is a molecular diagnostic technique that has been widely used for diagnosing viral diseases.Nested PCR(N-PCR)is a variation on the standard PCR technique that involves two amplification steps,yielding greater sensitivity and specificity.But there are two main disadvantages:the protocol is more complex than conventional PCR,and the risk of cross-contamination is relatively high.One-step nested PCR(OSN-PCR)enables conventional N-PCR to be performed as a closed reaction in a single tube that contains both outer and inner primers.This strategy makes OSN-PCR more rapid than N-PCR,lowers the probability of cross-contamination,and requires a smaller amount of reagents. | Ji Wang Li Zhao Zhihua Sun Guixia Li Peihua Niu DANDi Li Lianjun Wang Yi Zhang Zhishan Feng Xuejun Ma | 2019 | Science China(Life Sciences)2019，62，3： | 4 |
| 10 | Recent Advancements on Photothermal Conversion and Antibacterial Applications over MXenes-Based Materials显示文摘The pernicious bacterial proliferation and emergence of super-resistant bacteria have already posed a great threat to public health,which drives researchers to develop antibiotic-free strategies to eradicate these fierce microbes.Although enormous achievements have already been achieved,it remains an arduous challenge to realize efficient sterilization to cut off the drug resistance generation.Recently,photothermal therapy(PTT)has emerged as a promising solution to efficiently damage the integrity of pathogenic bacteria based on hyperthermia beyond their tolerance.Until now,numerous photothermal agents have been studied for antimicrobial PTT.Among them,MXenes(a type of two-dimensional transition metal carbides or nitrides)are extensively investigated as one of the most promising candidates due to their high aspect ratio,atomic-thin thickness,excellent photothermal performance,low cytotoxicity,and ultrahigh dispersibility in aqueous systems.Besides,the enormous application scenarios using their antibacterial properties can be tailored via elaborated designs of MXenes-based materials.In this review,the synthetic approaches and textural properties of MXenes have been systematically presented first,and then the photothermal properties and sterilization mechanisms using MXenes-based materials are documented.Subsequently,recent progress in diverse fields making use of the photothermal and antibacterial performances of MXenes-based materials are well summarized to reveal the potential applications of these materials for various purposes,including in vitro and in vivo sterilization,solar water evaporation and purification,and flexible antibacterial fabrics.Last but not least,the current challenges and future perspectives are discussed to provide theoretical guidance for the fabrication of efficient antimicrobial systems using MXenes. | Shuyan Hao Hecheng Han Zhengyi Yang Mengting Chen Yanyan Jiang Guixia Lu Lun Dong Hongling Wen Hui Li Jiurong Liu Lili Wu Zhou Wang Fenglong Wang | 2022 | Nano-Micro Letters2022，14，11： | 4 |
| 11 | Improving on calculation of martensitic phenomenological theory显示文摘Exemplified by the martensitic transformation from DO3 to 18R in Cu-14.2Al-4.3Ni alloy and according to the principle that invariant-habit-plane can be obtained by self-accommodation between variants with twin relationships, and on the basis of displacement vector, volume fractions of two variants with twin relationships in martensitic transformation, habit-plane indexes, and orientation relationships between martensite and austenite after phase transformation can be calculated. Because no additional rotation matrixes are needed to be considered and mirror symmetric operations are used, the calculation process is simple and the results are accurate. | DONG Guixia , GU Nanju and WANG Baoqi(1. Metal Material Institute, Hebei University of Technology, Tianjin 300132, China 2. Department of Material Science and Engineering, Tianjin Institute of Technology, Tianjin 300191, China) | 2003 | Progress in Natural Science:Materials International2003，13，7： | 3 |
| 12 | Time-Series Modeling and Prediction of Global Monthly Absolute Temperature for Environmental Decision Making显示文摘概括的 A,结构,时间系列建模框架被开发分析绝对表面温度的每月的记录,最重要的环境参数之一,使用 deterministicstochastic 联合了(DSC ) 来临。尽管框架的发展基于全球数据集的变化模式的描述,方法论能被用于任何每月绝对的温度记录。确定的进程被用来描绘全球趋势的变化模式和温度信号的周期的摆动,分别地,当随机的进程被采用说明在温度信号的任何留下的模式时,包含多项式函数和 Fourier 方法,包含综合移动一般水准( SARIMA )建模的季节的 autoregressive 。每月全球的表面温度的预言在用 DSC 模型的第 21 世纪的第二十年期间证明全球温度将继续多半升起在两次过去的 150 年的平均的率。DSC 模型系统地执行很好对的预言精确性表演的评估选择了另外的作者的模型,当结合时,建议 DSC 当模特儿另外的 ecoenvironmental 模型,能被用作一个补加的工具为短期(10 年) 环境计划和决策。 | YE Liming YANG Guixia Eric VAN RANST TANG Huajun | 2013 | Advances in Atmospheric Sciences2013，30，2： | 3 |
| 13 | A LOW-COMPLEXITY PORT SELECTION AND POWER ALLOCATION SCHEME IN DISTRIBUTION MIMO SYSTEMS显示文摘Information theoretical results have shown that Distributed Antenna Systems (DAS) can obtain higher capacity than Co-located Antenna Systems (CAS). In this paper,we investigate a downlink port selection and power allocation scheme in Distributed Multiple-Input Multiple-Output (D-MIMO) systems,where Distributed Antenna (DA) ports randomly locate in the cell. The contri-bution of this paper can be summarized as two parts. Firstly,we analyze how antenna correlation af-fects power allocation in D-MIMO systems. Secondly,based on large scale fading and antenna corre-lation,a low-complexity port selection and power allocation scheme is proposed. In the proposed scheme,we take both large scale fading and antenna correlation into consideration. Moreover,User Equipment (UE) only needs to feedback the rank of transmit antenna correlation matrix,which will not increase system complexity too much. Simulation results verify the capacity improvement based on the proposed power allocation scheme. | Zhang Ningbo Kang Guixia Guo Yanyan Zhang Ping | 2010 | Journal of Electronics(China)2010，27，2： | 2 |
| 14 | Determination of Veterinary Drug Residues in Animal-derived Foods by Liquid Chromatography-Mass Spectrometry显示文摘[Objectives]This study was conducted to establish a rapid and effective method for simultaneous extraction of 54 kinds of veterinary drug residues in animal-derived food, including sulfonamides, quinolones, tetracyclines, malachite greens, penicillins, nitroimidazoles, tranquilizers and macrolides, by HPLC-MS. [Methods] The samples were extracted with 80% acetonitrile water(containing 0.1% formic acid), combined with QuEChERS extraction technology and C18 and PSA purification, analyzed by high performance liquid chromatography-mass spectrometry, and quantified by external standard method. The target substances were analyzed on ZORBAX Eclipse C18 chromatographic column using 0.2% formic acid water and 0.2% methanol as mobile phases. The gradient elution mode was used for chromatographic separation and multiple reaction detection. [Results] In the linear range of 0.5-50.0 ng/ml, the linear relationship of the 54 kinds of veterinary drug residues was good, with correlation coefficients(r~2) greater than 0.995, and the detection limits ranged from 0.30 to 1.00 μg/kg. The results showed that the recovery ranged from 75.4% to 118.2% when different matrixes were added for recovery. [Conclusions] This method is simple, efficient, accurate, stable, and highly operable. It is applicable to simultaneous batch screening of veterinary drug residues in animal-derived food, and has high practical application value. | Haowei CUI Kun XIN Guixia YANG | 2023 | Agricultural Biotechnology2023，12，1： | 2 |
| 15 | Recent Advances in Coordination-Insertion Copolymerization of Ethylene with Polar Functionalized Comonomers显示文摘Increasing demand for polar functionalized polyolefins has motivated the development of new polymerization chemistry to introduce functional groups into polyolefins,which is industrially important but scientifically challenging.Coordination-insertion copolymerization of ethylene and polar comonomers offers a direct and economic way to synthesize functionalized polyethylenes and great achievements have been gained by employing catalytic systems based on transition metals and rare earth metals.Continuous efforts have been devoted to developing novel catalytic systems and strategies to introduce chemically diverse functionalities at specific positions,control over the microstructures and get high molecular weight functionalized polyethylenes with high activity and good enchainment capacity.This article summarizes some important advances in the past three years in this field,focusing on the studies using chemically diverse polar comonomers to afford functionalized polyethylenes with novel microstructures. | Guixia Liu Zheng Huang | 2020 | Chinese Journal of Chemistry2020，38，11： | 2 |
| 16 | Random Access and Resource Allocation for the Coexistence of NOMA-Based and OMA-Based M2M Communications显示文摘In the future fifth generation(5G) systems,non-orthogonal multiple access(NOMA) is a promising technology that can greatly enhance the network capacity compared to orthogonal multiple access(OMA) .In this paper,we propose a novel random access(RA) and resource allocation scheme for the coexistence of NOMA-based and OMAbased machine-to-machine(M2M) communications,which aims at improving the number of successful data packet transmissions and guaranteeing the quality of service(Qo S) (e.g.,the minimum data rate requirement) for M2 M communications.The algorithm of joint user equipment(UE) paring and power allocation is proposed for the coexisting RA(i.e.,the coexistence of NOMA-based RA and OMA-based RA) .The resource allocation for the coexisting RA is investigated,thus improving the number of successful data packet transmissions by more efficiently using the radio resources.Simulation results demonstrate that the proposed RA and resource allocation scheme outperforms the conventional RA in terms of the number of successful data packet transmissions,thus is a promising technology in future M2 M communications. | Yali Wu Guixia Kang Ningbo Zhang | 2017 | China Communications2017，14，6： | 2 |
| 17 | NCP-Type Pincer Iridium Complexes Catalyzed Transfer-Dehydrogenation of Alkanes and Heterocycles显示文摘A series of NCP-type pincer iridium complexes,(RNCCp)IrHCl(2a-2c)and(BQ-NCOP)IrHCl 3,have been studied for catalytic transfer alkane dehydrogenation.Complex 3 containing a rigid benzoquinoline backbone exhibits high activity and robustness in dehydrogenation of alkanes to form alkenes.Even more importantly,this catalyst system was also highly effective in the dehydrogenation of a wide range of heterocycles to furnish heteroarenes. | Yulei Wang Lu Qian Zhidao Huang Guixia Liu Zheng Huang | 2020 | Chinese Journal of Chemistry2020，38，8： | 2 |
| 18 | Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst显示文摘Extraction of uranium from radioactive waste-water is of significant importance for environmental protection and the recovery of uranium resource.Different from the previous reports to use the solid absorbent/photocatalyst for U(VI)removal,herein,we proposed a new eco-friendly method for the rapid and selective extraction of uranium from aqueous solutions under visible light without solid materials.At optimal pH value and in the presence of organics like alcohols,the U(VI)could be extracted efficiently to form brown uranium solid over wide uranium concentrations under anaerobic condition and visible light,by utilizing the excitation of the given U(VI)species.With comprehensive modelling of the electronic ultraviolet-visible(UV-Vis)properties,it is proved that pH adjusting towards U(VI)could induce efficient ligand-to-metal-charge-transfer(LMCT)within the uranyl complex under visible light and the reduction of U(VI)to form U(V),which can be transformed into U(IV)via disproportionation reaction.The resulting U(IV)in solid phase makes the extraction much more convenient in operation.More importantly,the excellent selectivity for uranium extraction over interfering alkali metal ions,transition metal ions and the lanthanide metal ions shows a powerful application potential. | Shaojun Li Yezi Hu Zewen Shen Yawen Cai Zhuoyu Ji Xiaoli Tan Zhixin Liu Guixia Zhao Shuxian Hu Xiangke Wang | 2021 | Science China Chemistry2021，64，8： | 2 |
| 19 | Application of aluminosilicate clay mineral-based composites in photocatalysis显示文摘Aluminosilicate clay mineral(ACM)is a kind of typical raw materials that used widely in manufacturing industry owing to the abundant reserve and low-cost exploring.In past two decades,in-depth understanding on unique layered structure and abundant surface proper-ties endows ACM in the emerging research and application fields.In field of solar-chemical energy conversion,ACM has been widely used to support various semiconductor photocata-lysts,forming the composites and achieving efficient conversion of reactants under sunlight irradiation.To date,classic ACM such as kaolinite and montmorillonite,loaded with semi-conductor photocatalysts has been widely applied in photocatalysis.This review summaries the recent works on ACM-based composites in photocatalysis.Focusing on the properties of surface and layered structure,we elucidate the different features in the composition with various functional photocatalysts on two typical kinds of ACM,i.e.,type 1∶1 and type 2∶1.Not only large surface area and active surface hydroxyl group assist the substrate adsorption,but also the layered structure provides more space to enlarge the application of ACM-based photocatalysts.Besides,we overview the modifications on ACM from both external surface and the inter-layer space that make the formation of composites more efficiently and boost the photo-chemical process.This review could inspire more upcoming design and synthesis for ACM-based photocatalysts,leading this kind of economic and eco-friendly materials for more practical application in the future. | Yingtong Zou Yezi Hu Zewen Shen Ling Yao Duoyue Tang Sai Zhang Shuqin Wang Baowei Hu Guixia Zhao Xiangke Wang | 2022 | Journal of Environmental Sciences2022，34，5： | 2 |
| 20 | One-pot synthesis of arginine modified hydroxyapatite carbon microsphere composites for efficient removal of U(Ⅵ) from aqueous solutions显示文摘Uranium was not only the main source of nuclear energy but also one of the long-lived radionuclide.Herein, a novel arginine modified hydroxyapatite carbon microsphere composites(defined as C@HAp/Arg) obtained promptly via a one-step mild hydrothermal method, was applied to remove U(Ⅵ) from aqueous solutions. Based on the characterization of transmission electron microscopy(TEM), scanning electron microscopy(SEM), Fourier transformed infrared spectroscopy(FT-IR), X-ray diffraction(XRD)and X-ray photoelectron spectroscopy(XPS), the synthesized C@HAp/Arg presented globular morphology and abundant functional groups(e.g., —COO^-), which were beneficial to its combination with U(Ⅵ). The interaction mechanism and removal capability of U(Ⅵ) on C@HAp/Arg were studied by batch adsorption technique and spectroscopy analysis. The results implied that U(Ⅵ) can form strong surface complexes on C@HAp/Arg. The kinetics adsorption of U(Ⅵ) followed pseudo-second-order kinetic model with high removal efficiency($95% within 5h at pH 5.0). The adsorption isotherms were well fitted by Langmuir model, implying that U(Ⅵ) uptake on C@HAp/Arg was monolayer coverage. It was found that the maximum adsorption capacities of CSs, C@HAp and C@HAp/Arg toward U(Ⅵ) were calculated to be 23.16,72.09 and 569.66 mg/g, respectively, at 298.15 K and pH 5.0, and thermodynamic parameters revealed that the adsorption processes of U(Ⅵ) were spontaneous and endothermic. In addition, effect of co-existed ions and CO_3^(2-)concentrations demonstrated that U(Ⅵ) adsorption on C@HAp/Arg was weakly interfered by foreign ions and carbonate concentrations. More importantly, the adsorption performance of U(Ⅵ) on C@HAp/Arg was still over $87% after five cycles. Therefore, it was noted that the versatile C@HAp/Arg could be potentially used as a powerful building block for the enrichment and disposal of U(Ⅵ) from aqueous solutions, which could efficiently reduce the potential toxicity of U(Ⅵ) in the U(Ⅵ)-contaminated water. | Dongxu Yang Xiangxue Wang Gang Song Guixia Zhao Zhe Chen Shujun Yu Pengcheng Gu Hongqing Wang Xiangke Wang | 2017 | Science Bulletin2017，62，23： | 2 |
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