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| 1 | Synthesis of novel nanomaterials and their application in efficient removal of radionuclides显示文摘With the development of nuclear energy, large amounts of radionuclides are inevitably released into the natural environment. It is necessary to eliminate radionuclides from wastewater for the protection of environment. Nanomaterials have been considered as the potential candidates for the effective and selective removal of radionuclides from aqueous solutions under complicated conditions because of their high specific surface area, large amounts of binding sites, abundant functional groups, pore-size controllable and easily surface modification. This review mainly summarized the recent studies for the synthesis, fabrication and surface modification of novel nanomaterials and their applications in the efficient elimination and solidification of radionuclides,and discussed the interaction mechanisms from batch experiments, spectroscopy analysis and theoretical calculations. The sorption capacities with other materials, advantages and disadvantages of different nanomaterials are compared, and at last the perspective of the novel nanomaterials is summarized. | Xiangxue Wang Long Chen Lin Wang Qiaohui Fan Duoqiang Pan Jiaxing Li Fangting Chi Yi Xie Shujun Yu Chengliang Xiao Feng Luo Jun Wang Xiaolin Wang Changlun Chen Wangsuo Wu Weiqun Shi Shuao Wang Xiangke Wang | 2019 | Science China Chemistry2019，62，8： | 20 |
| 2 | Reductive immobilization of Re(VⅡ)by graphene modified nanoscale zero-valent iron particles using a plasma technique显示文摘Technetium-99(~99Tc),largely produced by nuclear fission of ~235U or ~239Pu,is a component of radioactive waste.This study focused on a remediation strategy for the reduction of pertechnetate(Tc O_4^-)by studying its chemical analogue rhenium(Re(VⅡ))to avoid the complication of directly working with radioactive elements.Nanoscale zero-valent iron particles supported on graphene(NZVI/r GOs)from GOs-bound Fe ions were prepared by using a H_2/Ar plasma technique and were applied in the reductive immobilization of perrhenate(Re O_4^-).The experimental results demonstrated that NZVI/r GOs could efficiently remove Re from the aqueous solution,with enhanced reactivity,improved kinetics(50 min to reach equilibrium)and excellent removal capacity(85.77 mg/g).The results of X-ray photoelectron spectroscopy analysis showed that the mechanisms of Re immobilization by NZVI/r GOs included adsorption and reduction,which are significant to the prediction and estimation of the effectiveness of reductive Tc O_4^- by NZVI/r GOs in the natural environment. | Jie Li Changlun Chen Rui Zhang Xiangke Wang | 2016 | Science China Chemistry2016，59，1： | 11 |
| 3 | Nanoscale zero-valent iron/magnetite carbon composites for highly efficient immobilization of U(Ⅵ)显示文摘Nanoscale zerovalent iron/magnetic carbon(NZVI/MC) composites were successfully synthesized by simply calcining yellow pine and iron precursors. NZVI/MC pyrolyzed at 800°C(NZVI/MC800) had a higher percentage of NZVI and displayed better resistance to aggregation and oxidation of NZVI than samples prepared at other temperatures. The NZVI/MC800 material was applied for the elimination of U(Ⅵ) from aqueous solutions. The results suggested that the NZVI/MC800 displayed excellent adsorption capacity(203.94 mg/g)toward U(Ⅵ). The significant adsorption capacity and fast adsorption kinetics were attributed to the presence of well-dispersed NZVI, which could quickly reduce U(Ⅵ) into U(Ⅳ), trapping the guest U(Ⅳ) in the porous biocarbon matrix. The removal of U(Ⅵ) on the NZVI/MC samples was strongly affected by solution pH. The NZVI/MC samples also displayed outstanding reusability for U(Ⅵ) removal after multiple cycles. These findings indicate that NZVI/MC has great potential for remediation of wastewater containing U(Ⅵ). | Zhimin Lv Shimin Yang Lei Chen Ahmed Alsaedi Tasawar Hayat Changlun Chen | 2019 | Journal of Environmental Sciences2019，31，2： | 5 |
| 4 | Investigation of radionuclide ^(60)Co(Ⅱ) binding to TiO_2 by batch technique,surface complexation model and DFT calculations显示文摘The interaction between radionuclides and solid/water interfaces is important to understand the physicochemical processes of radionuclides in the natural environment.Herein,the interaction of 60Co(Ⅱ) with TiO 2 in aqueous solution as a function of pH and ionic strength was studied by using batch technique combined with surface complexation model and density functional theory(DFT) calculations.The batch experimental results showed that the adsorption of 60Co(Ⅱ) was dependent on pH and independent of ionic strength,indicating the formation of inner-sphere surface complexes on TiO 2 surfaces.The results of surface complexation models and DFT calculations indicated that the surface species of 60Co(Ⅱ) adsorbed on TiO 2 followed the trend:B structure(i.e.,60Co(Ⅱ) was linked to one bridge oxygen site) was the dominant surface species at low pH,and TT structure(i.e.,60Co(Ⅱ) was linked to two terminal oxygen sites) became the important surface complex at neutral and alkaline pH values.These results demonstrated that a multi-technique approach could lead to definitive information on the structures of adsorbed 60Co(Ⅱ) at the molecular level at the TiO 2 /water interfaces,as well as realistic models to rationalize and accurately evaluate the macroscopic manifestations of radionuclide adsorption phenomena. | REN XueMei YANG ShiTong TAN XiaoLi CHEN ChangLun WANG XiangKe | 2012 | Science China Chemistry2012，55，9： | 4 |
| 5 | Adsorption kinetic, thermodynamic and desorption studies of Th( IV ) on oxidizedMultiwall carbon nanotubes显示文摘 | Chen Changlun Li Xueliang Zhao Dongbin | 2007 | Colloid and Surfaces A physicochem Eng Aspects2007，302，： | 1 |
| 6 | Adsorption of Ni (II) from aqueoussolution using oxidized multiwall carbon nanotubes 显示文摘 | Chen Changlun Wang Xiangke | 2006 | Industrial& Engineering Chemistry Research2006，45，26： | 1 |
| 7 | Synthesis of graphene-based nanomaterials and their application in energy- related and environmental-related areas 显示文摘 | Zhao Guixia Wen Tao Chen Changlun et ol | 2012 | RSC Advances2012，2，25： | 1 |
| 8 | Adsorption kinetic, thermodynamic and desorption studies of Th (Ⅳ ) on oxidized multi-wall carbon nanotubes 显示文摘 | Chen Changlun Li Xueliang Zhao Dongbin | 2007 | Colloid and Surfaces A:Physicochem Eng Aspects2007，302，： | 1 |
| 9 | Synthesis of water-dispersible Fe3 O4 @β-cyclodextrin by plasma-in- duced grafting technique for pollutant treatment显示文摘 | Li Jie Chen Changlun Zhao Ying | 2013 | Chem Eng J2013，229，： | 1 |
| 10 | Study of multiwall carbon nanotubes self-assembled electrode and its application to the determination of carbon monoxide显示文摘 | He Jianbo Chen Changlun Liu Jinhuai | 2004 | Sensors and Actuators B: Chemical2004，99，1： | 1 |
| 11 | Eu (Ⅲ) uptake on Rectorite in the Presence of Humic Acid: A Macroscopic and Spectroscopic Study显示文摘 | Chen Changlun Yang Xin Wei Juan Tan Xiaoli WangXiangke | 2013 | Journal of Colloid and Interfaee Science2013，393，： | 1 |
| 12 | Carbon nanotubes as adsorbents in environmental pollution management:Areview显示文摘 | Xuemei Ren Changlun Chen Masaaki Nagatsu | 2011 | Chemical Engineering Journal2011，170，2： | 1 |
| 13 | The adsorption of Pb(II) on Mg 2 Al layered double hydroxide显示文摘 | Donglin Zhao Guodong Sheng Jun Hu Changlun Chen Xiangke Wang | 2011 | Chemical Engineering Journal2011，，1： | 1 |
| 14 | Adsorption kinetic,themodynamic and desorption studies of Th(Ⅳ)on oxidezed multi-wall carbon nanotubes显示文摘 | Chen Changlun Li Xueliang Zhao Dongbin | 2007 | Colloids Surf A2007，302，13： | 1 |
| 15 | Enhanced photocatalytic degradation of methylene blue under visible irradiation on graphene@TiO2 dyade structure显示文摘 | Donglin Zhao Guodong Sheng Changlun Chen et at | 2011 | Applied Catalysis B Environmental2011，，： | 1 |
| 16 | Removal of Cu(11)and fulvic acid by graphene oxide nanosheets decorated with Fe3O4nanoparticles显示文摘 | Li Jie Zhang Shouwei Chen Changlun | 2012 | Applied Materials Interfaces2012，4，9： | 1 |
| 17 | Sorption of Th (Ⅳ) on Na-rectorite:Effect of HA,ionic strength,foreign ions and temperature显示文摘 | XU Di CHEN Changlun TAN Xiaoli | | 0，，12： | 1 |
| 18 | Remov al of polychlorinated biphenyls from aqueous solutions using β-cyclodextrin grafted multiwalled carbon nanotubes显示文摘 | Shao Dadong Sheng Guodong Chen Changlun | 2010 | Chemo sphere2010，79，67： | 1 |
| 19 | Using of chelating resin to study the kinetic desorption of Eu(III) from humic acid–Al 2 O 3 colloid surfaces显示文摘 | Xiangke Wang Xiang Zhou Jinzhou Du Wenping Hu Changlun Chen Yixue Chen | 2005 | Surface Science2005，，2： | 1 |
| 20 | Adsorption of Ni( II) from aqueous solution using oxidized multiwall carbon nanotubes 显示文摘 | Changlun Chen Xiangke Wang | 2006 | Ind Eng Chem Res2006，45，： | 1 |
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