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| 1 | New progress in the processing and efficient utilization of coal显示文摘Coal accounts for about 70% of the primary energy sources in China.The environmental pollution and resources waste involved with coal processing and utilization are serious.It is therefore urgent to develop highly-efficient coal resources utilization theory and methods with low-carbon discharge.Based on our long-term basic research and technology development,the progress in beneficiation,cleaning,and transformation of coal,which includes dense phase fluidized bed dry beneficiation,deep screening of wet fine coal,micro-bubble fiotation column separation,molecular coal chemistry,and transformation and separation of coal and its derivatives into value-added chemicals under mild conditions,is discussed. | Zhao Yuemin Liu Jiongtian wei xianyong Luo Zhenfu Chen Qingru Song Shulei | 2011 | Mining Science and Technology2011，21，4： | 9 |
| 2 | Simultaneous elution of polycyclic aromatic hydrocarbons and heavy metals from contaminated soil by two amino acids derived from β-cyclodextrins显示文摘Two highly water-soluble amino acids,which derived from β-CDs,i.e.,glutamic acid-β-cyclodextrin (GluCD) and ethylene-diamineβ-cyclodextrin (EDCD),were synthesized and were examined for their effect on solubilization of anthracene (ANT),complexation of cadmium (Cd2+),and elution removal of ANT and Cd2+ in soil.The results showed that GluCD and EDCD were powerful complexant for ANT and Cd2+.In the presence of 10 g/L GluCD and EDCD,the solubilization of ANT increased by 47.04 and 23.85 times compared to the control,respectively.GluCD resulted in approximately 90% complexation of Cd2+ while 70% complexation was observed for EDCD.Simultaneously,GluCD and EDCD could greatly enhance the elution removal of ANT and Cd 2+ from soil.GluCD resulted in the highest elution efficiency of ANT and Cd2+.With the addition of 10 g/L GluCD,53.5% of ANT and 85.6% of Cd2+ were eluted,respectively.The ANT had a negligible effect on the Cd2+ removal due to different complexing sites of ANT and Cd2+,while Cd2+ enhanced the ANT removal under the addition of GluCD because Cd2+ neutralized the-COOH group of GluCD.Adversely,the removal of ANT was decreased with Cd2+ under the addition of EDCD,this was due to the fact that Cd2+ enhanced the polarity of EDCD molecule and inhibited the complexation between ANT and EDCD.The study suggested that GluCD could be preferred and be successfully applied to remediation of heavy metals or organic compounds in contaminated soil. | Chengjian Yang Qingru Zeng Yunzhong Wang Bohan Liao Jian Sun Hui Shi Xingdou Chen | 2010 | Journal of Environmental Sciences2010，22，12： | 7 |
| 3 | Molecular diversity of arbuscular mycorrhizal fungi at a large-scale antimony mining area in southern China显示文摘Arbuscular mycorrhizal fungi(AMF) have great potential for assisting heavy metal hyperaccumulators in the remediation of contaminated soils. However, little information is available about the community composition of AMF under natural conditions in soils contaminated by antimony(Sb). The objective of this study was to investigate the characteristics of AMF molecular diversity, and to explore the effects of Sb content and soil properties on the AMF community structure in an Sb mining area. Four Sb mine spoils and one adjacent reference area were selected from around the Xikuangshan mine in southern China. The association of AMF molecular diversity and community composition with the rhizosphere soils of the dominant plant species was studied by Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis(PCR-DGGE). Results from all five studied sites showed that the diversity of AMF decreased with increasing Sb concentration. Principal component analysis(PCA) indicated that the AMF community structure was markedly different among these groups. Further redundancy analysis(RDA) showed that Sb contamination was the dominating factor influencing the AMF community structure in the Sb mine area. However, the multivariate analysis showed that, apart from the soil Sb content, extractable nitrogen content and organic matter content also attributed to AMF sequence distribution type. Some AMF sequences were only found in the highly contaminated area and these might be ideal candidates for improving phytoremediation efficiency in Sb mining regions. Gene sequencing analysis revealed that most species were affiliated with Glomus, suggesting that Glomus was the dominant AMF genus in the studied Sb mining area. | Yuan Wei Zhipeng Chen Fengchang Wu Hong Hou Jining Li Yuxian Shangguan Juan Zhang Fasheng Li Qingru Zeng | 2015 | Journal of Environmental Sciences2015，27，3： | 6 |
| 4 | Effects of magnetic field on fluidization properties of magnetic pearls显示文摘An experimental study of the influence of external magnetic field on the fluidization behavior of magnetic pearls was carried out. Magnetic pearls are a magnetic form of iron oxide that mainly consists of Fe2O3 which are recovered from a high-volume power plant fly ash from pulverized coal combustion. Due to its abundance, low price and particular physical and chemical properties, magnetic pearls can be used as a heavy medium for minerals or solid waste dry separation based on density difference. This paper introduces the properties of magnetic pearls and compares the performance of magnetic pearls fluidised bed operation with or without an external magnetic field. Experimental results show that an external magnetic field significantly improves the fluidization performance of magnetic pearls such as uniformity and stability. | Maoming Fan Zhenfu Luo Yuemin Zhao Qingru Chen Daniel Tao Xiuxiang Tao Zhenqiang Chen | 2007 | China Particuology2007，5，1： | 4 |
| 5 | Spirulina platensis aqueous extracts ameliorate colonic mucosal damage and modulate gut microbiota disorder in mice with ulcerative colitis by inhibiting inflammation and oxidative stress显示文摘Ulcerative colitis(UC)is a chronic and recurrent inflammatory bowel disease(IBD)that has become a major gastroenterologic problem during recent decades.Numerous complicating factors are involved in UC development such as oxidative stress,inflammation,and microbiota disorder.These factors exacerbate damage to the intestinal mucosal barrier.Spirulina platensis is a commercial alga with various biological activity that is widely used as a functional ingredient in food and beverage products.However,there have been few studies on the treatment of UC using S.platensis aqueous extracts(SP),and the underlying mechanism of action of SP against UC has not yet been elucidated.Herein,we aimed to investigate the modulatory effect of SP on microbiota disorders in UC mice and clarify the underlying mechanisms by which SP alleviates damage to the intestinal mucosal barrier.Dextran sulfate sodium(DSS)was used to establish a normal human colonic epithelial cell(NCM460)injury model and UC animal model.The mitochondrial membrane potential assay 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT)and staining with Annexin V-fluorescein isothiocyanate(FITC)/propidium iodide(PI)and Hoechst 33258 were carried out to determine the effects of SP on the NCM460 cell injury model.Moreover,hematoxylin and eosin(H&E)staining,transmission electron microscopy(TEM),enzyme-linked immunosorbent assay(ELISA),quantitative real-time polymerase chain reaction(qPCR),western blot,and 16S ribosomal DNA(rDNA)sequencing were used to explore the effects and underlying mechanisms of action of SP on UC in C57BL/6 mice.In vitro studies showed that SP alleviated DSS-induced NCM460 cell injury.SP also significantly reduced the excessive generation of intracellular reactive oxygen species(ROS)and prevented mitochondrial membrane potential reduction after DSS challenge.In vivo studies indicated that SP administration could alleviate the severity of DSS-induced colonic mucosal damage compared with the control group.Inhibition of inflammation and oxidative stress was associated with increases in the activity of antioxidant enzymes and the expression of tight junction proteins(TJs)post-SP treatment.SP improved gut microbiota disorder mainly by increasing antioxidant enzyme activity and the expression of TJs in the colon.Our findings demonstrate that the protective effect of SP against UC is based on its inhibition of pro-inflammatory cytokine overproduction,inhibition of DSS-induced ROS production,and enhanced expression of antioxidant enzymes and TJs in the colonic mucosal barrier. | Jian WANG Liqian SU Lun ZHANG Jiali ZENG Qingru CHEN Rui DENG Ziyan WANG Weidong KUANG Xiaobao JIN Shuiqing GUI Yinghua XU Xuemei LU | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022，23，6： | 3 |
| 6 | Effect of chemical conditioning on the triboelectrification of coal and mineral particles显示文摘Chemical conditioning was used to modify the triboelectrification of coal and mineral particles.The chemicals tested included starch,lignin,kerosene,ethanol,acetic acid,salicylic acid,sodium oleate,Sodium Hexametaphosphate(SH),sodium silicate, Sodium Dodecylbenzenesulfonate(SDBS),Sodium Bicarbonate(SB) and ammonia.A high-speed,dry mixing method was employed.The charge-to-mass ratio of the coal and mineral samples,both untreated and treated,was tested using a Faraday cup. Dielectric constants were determined by measuring capacitance.It is found that the selectivity of the additives toward coal or minerals is not consistent.Salicylic acid is the optimal additive to enhance the triboelectrification performance of coal samples.Starch, lignin and sodium oleate are suitable for removal of pyrite.SH,sodium silicate,SDBS,SB and ammonia are suitable additives for the removal of ash-forming minerals. | WANG Haifeng CHEN Qingru ZHANG Xinxi TAN Zhihai WANG Shuai ZHOU Nianxin | 2010 | Mining Science and Technology2010，20，3： | 2 |
| 7 | FINE COAL AND THREE PRODUCT DRY BENEFICIATION WITH VIBRATION AND DOUBLE-DENSITY FLUIDIZED BEDS显示文摘Thedrybeneficiationtechnologywithairdensemediumfluidizedbedcaneficientlybenefici-atethecoarsecoalofsize50~6mm.However,thistec... | Wei Lubin (Department of Mineral Engineering,Central South University of Technology, Changsha 410083,China) Chen Qingru Luo Zhenfu (China University of Mining &Technology) | 1998 | Journal of Central South University1998，10，2： | 2 |
| 8 | Effect of gas distributor on performance of dense phase high density fluidized bed for separation显示文摘 | LUO Zhenfu ZHAO Yuemin CHEN Qingru | 2004 | International Journal of Mineral Processing2004，74，14： | 1 |
| 9 | Density-dependent separation of dry fine coal in a vibrated fluidized bed显示文摘 | Zhenfu Luo Maoming Fan Yuemin Zhao Xiuxiang Tao Qingru Chen Zengqiang Chen | 2008 | Powder Technology2008，，2： | 1 |
| 10 | Influ ence of surface modification by nitric acid on the disper sion of copper nitrate in activated carbon显示文摘 | Xie Qiang Zhang Xianglan Chen Qingru | 2013 | New Car bon Materials2013，18，： | 1 |
| 11 | Development of dry beneficiation of coal in China 显示文摘 | CHEN QINGRU YANG YUFEN | 2003 | Coal Preparation--A Multinational Journal2003，23，12： | 1 |
| 12 | Phylogenetic diversity of TypeⅠpolyketide synthase genes from sediments of Ardley Island in Antarctica显示文摘The diversity of modular polyketide synthase (PKS) genes in sediments of Ardley Island in Antarctica, was studied by restriction fragment length polymorphism (RFLP) analysis. Phylogenetic analysis of 14 amino acid (AA) sequences indicates that the identified ketosynthase (KS) domains were clustered with those from diverse bacterial groups, including Cyanobacteria, γ-Proteobacteria, Actinobacteria, Firmicutes, and some unidentified microorganisms from marine sponge, bryozoan and other environmental samples. The obtained KS domains showed 43%-81% similarity at the AA level to reference sequences in GenBank. Six identified KS domains showed diverse sequences of the motif (VQTACSTS) that was used to identify the hybrid PKS/nonribosomal peptide synthetase (NRPS) enzyme complex, and formed a new branch. These results reveal a high diversity and novelty of PKS genes in antarctic sediments. | ZHAO Jing YANG Ning CHEN Xinglin JIANG Qingru ZENG Runying | 2011 | Acta Oceanologica Sinica2011，30，6： | 1 |
| 13 | Enhancement of red emission assigned to inversion defects in ZnAl2O4:Cr3+ hollow spheres显示文摘ZnAl2O4:Cr3+hollow spheres composed of secondary nanoparticles with single spinel phase were fabricated using carbon templets.Monitoring the emission of 687 nm,two wide excitation bands attributed to the electrons of Cr3+transiting from 4A2g(4F)→4T1g(4F)and 4A2g(4F)→4T2g(4F)were observed.The broad excitation band at about 397 nm was asymmetric and consisted of two peaks,indicating that there was a trigonal distortion existing in the lattices.The intensity of all emitting peaks revealed sharp increasing trend with the sintering temperature increase,and the intensity of emission at 698 nm assigned to inversion defects was more intense than that of emission at 687 nm assigned to octahedral Cr3+ions in the undistorted spinel lattice.The samples with higher synthesized temperature revealed longer decay time,and the relative weightage of shorter decay time component decreased with the increase of sintering temperature,indicating that the surface defects decreased. | Dong Zhang Jingxin Chen Chunyu Du Bingjun Zhu Qingru Wang Qiang Shi Shouxin Cui Wenjun Wang | 2020 | Frontiers of Materials Science2020，14，1： | 0 |
| 14 | Boron-promoted reductive deoxygenation coupling reaction of sulfonyl chlorides for the C(sp3)-S bond construction显示文摘Herein,we report a borane-promoted reductive deoxygenation coupling reaction to synthesize sulfides.This reaction features excellent functional group compatibility,high efficiency,broad substrate scope,and application in late-stage functionalization of biomolecules.Preliminary mechanistic studies suggest diaryl sulfides are the intermediates of this reaction.Moreover,the real active aryl sulfide anions may be generated in situ with the aid of B2pin2 and react with alkyl tosylates through a concerted SN2 pathway. | Shuo Chen Qingru Wen Yanqing Zhu Yanru Ji Yu Pu Zhengli Liu Yun He Zhang Feng | 2022 | Chinese Chemical Letters2022，33，12： | 0 |
| 15 | The implications of planting mode on cadmium uptake and remobilization in rice: Field experiments across growth stages显示文摘Global rice production practices have gradually changed from a reliance on transplanting to direct seeding.Yet how this shift may alter cadmium(Cd)accumulation in rice is poorly known.Here we conducted field experiments with two rice genotypes cultivars that were planted using three methods:via direct seeding(DS),seedling throwing(ST),and manual transplanting(MT).Rice samples were collected during four growth stages.The formation and distribution of iron plaque were analyzed using DCB(dithionite-citrate-bicarbonate)extractions and observed under micro-XRF(micro X-ray fluorescence).The results revealed that,in each growth stage,DS rice was more apt to harbor Cd distributed in the plant’s aerial parts,and the Cd concentration of brown rice from DS was 21.8%–43.3%significantly higher than those from ST and MT at maturity stage(p<0.05).During the vegetative stages,the Cd uptake percentage was higher in DS than MT rice,and those plants arising from the DS method were capable of absorbing more Cd earlier in their growth and development.Conversely,using DS decreased the amount of iron plaque covering the root surface in every growth stage,especially in the critical period of Cd accumulation,such that the roots’middle areas were distinguished by a near-complete absence of iron plaque,thus weakening its role as an effective barrier to Cd uptake from soil.Collectively,this study demonstrated that implementing the DS mode of planting will increase Cd’s distribution in the aboveground parts of rice,and heightening the risk of Cd contamination in grain. | Xiao Deng Yixuan Chen Yang Yang Liang Peng Luo Si Qingru Zeng | 2021 | Frontiers of Environmental Science & Engineering2021，15，6： | 0 |
| 16 | Improved atmospheric mercury simulation using updated gas-particle partition and organic aerosol concentrations显示文摘The gaseous or particulate forms of divalent mercury(HgⅡ) significantly impact the spatial distribution of atmospheric mercury concentration and deposition flux(FLX). In the new nested-grid GEOS-Chem model, we try to modify the HgⅡ gas-particle partitioning relationship with synchronous and hourly observations at four sites in China. Observations of gaseous oxidized Hg(GOM), particulate-bound Hg(PBM), and PM 2.5 were used to derive an empirical gas-particle partitioning coefficient as a function of temperature( T) and organic aerosol(OA) concentrations under different relative humidity(RH). Results showed that with increasing RH, the dominant process of HgⅡ gas-particle partitioning changed from physical adsorption to chemical desorption. And the dominant factor of HgⅡ gas-particle partitioning changed from T to OA concentrations. We thus improved the simulated OA concentration field by introducing intermediate-volatility and semi-volatile organic compounds(I/SVOCs) emission inventory into the model framework and refining the volatile distributions of I/SVOCs according to new filed tests in the recent literatures. Finally, normalized mean biases(NMBs) of monthly gaseous element mercury(GEM), GOM, PBM, WFLX were reduced from-33%–29%, 95%–300%, 64%–261%, 117%–122% to-13%–0%,-20%–80%,-31%–50%,-17%–23%. The improved model explains 69%–98% of the observed atmospheric Hg decrease during 2013–2020 and can serve as a useful tool to evaluate the effectiveness of the Minamata Convention on Mercury. | Kaiyun Liu Qingru Wu Shuxiao Wang Xing Chang Yi Tang Long Wang Tonghao Liu Lei Zhang Yu Zhao Qin’geng Wang Jinsheng Chen | 2022 | Journal of Environmental Sciences2022，34，9： | 0 |
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