Adsorption and desorption of U(VI) on functionalized graphene oxides: a combined experimental and theoretical study

Environmental Science & Technology
Yubing SunXiangke Wang

Abstract

The adsorption and desorption of U(VI) on graphene oxides (GOs), carboxylated GOs (HOOC-GOs), and reduced GOs (rGOs) were investigated by batch experiments, EXAFS technique, and computational theoretical calculations. Isothermal adsorptions showed that the adsorption capacities of U(VI) were GOs > HOOC-GOs > rGOs, whereas the desorbed amounts of U(VI) were rGOs > GOs > HOOC-GOs by desorption kinetics. According to EXAFS analysis, inner-sphere surface complexation dominated the adsorption of U(VI) on GOs and HOOC-GOs at pH 4.0, whereas outer-sphere surface complexation of U(VI) on rGO was observed at pH 4.0, which was consistent with surface complexation modeling. Based on the theoretical calculations, the binding energy of [G(···)UO2](2+) (8.1 kcal/mol) was significantly lower than those of [HOOC-GOs(···)UO2](2+) (12.1 kcal/mol) and [GOs-O(···)UO2](2+) (10.2 kcal/mol), suggesting the physisorption of UO2(2+) on rGOs. Such high binding energy of [GOs-COO(···)UO2](+) (50.5 kcal/mol) revealed that the desorption of U(VI) from the -COOH groups was much more difficult. This paper highlights the effect of the hydroxyl, epoxy, and carboxyl groups on the adsorption and desorption of U(VI), which plays an important role in designing GOs...Continue Reading

References

Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Aug 22, 2001·Journal of Synchrotron Radiation·M Newville
Apr 1, 2003·Journal of Computational Chemistry·Maurizio CossiVincenzo Barone
Dec 13, 2006·Physical Review Letters·A C FerrariA K Geim
Jan 26, 2008·Science·Xiaolin LiHongjie Dai
May 24, 2008·Nano Letters·Yongchao Si, Edward T Samulski
Jul 17, 2008·Journal of the American Chemical Society·D W Boukhvalov, M I Katsnelson
Jan 1, 2008·Nano Research·Xiaoming SunHongjie Dai
Apr 13, 2010·The Journal of Physical Chemistry. B·D W LeeC H W Barnes
Jan 28, 2011·The Journal of Physical Chemistry. a·Vassiliki-Alexandra Glezakou, Wibe A deJong
Mar 8, 2011·ACS Nano·Zhen Xu, Chao Gao
Aug 1, 2009·Nature Chemistry·Wei GaoPulickel M Ajayan
Apr 12, 2011·Journal of the American Chemical Society·Joshua T RobinsonHongjie Dai
Apr 13, 2011·Journal of Colloid and Interface Science·Sheng-Tao YangHaifang Wang
Nov 11, 2011·Environmental Science & Technology·Guixia ZhaoXiangke Wang
Jan 27, 2012·ACS Nano·Nanjundan Ashok KumarJong-Beom Baek
Apr 5, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Guixia ZhaoXiangke Wang
Apr 13, 2012·ACS Nano·Raymond L D WhitbySergey V Mikhalovsky
Jan 9, 2013·Physical Chemistry Chemical Physics : PCCP·Anna Yu RomanchukJames M Tour
Feb 28, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Rafal SitkoRoman Wrzalik
May 15, 2013·Environmental Science & Technology·Indranil ChowdhuryDermont Bouchard
Aug 2, 2013·Environmental Science & Technology·Yubing SunXiangke Wang
Nov 23, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Lei WuHao Wang
Jan 22, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Congcong DingXiangke Wang
Mar 7, 2014·The Journal of Physical Chemistry. a·Qun-Yan WuWei-Qun Shi
Apr 1, 2014·Environmental Science & Technology·Jun WangBaoliang Chen

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Citations

Mar 22, 2016·Environmental Science & Technology·Yubing SunXiangke Wang
Jul 19, 2016·Journal of Hazardous Materials·Jessica Veliscek-Carolan
Jul 23, 2016·Environmental Science & Technology·Xiaoxiao Chen, Baoliang Chen
Aug 2, 2016·Environmental Science & Technology·Xuemei RenXiangke Wang
Sep 10, 2016·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·H R ShakurG Azimi
Sep 25, 2016·Environmental Science and Pollution Research International·Changsong ZhaoQun Sun
Oct 26, 2016·Journal of Hazardous Materials·Haibo LiuTianhu Chen
Jan 24, 2017·Environmental Science and Pollution Research International·Ayub KhanXiangke Wang
Jul 15, 2017·The Science of the Total Environment·Jian ShenZhen-Yu Zhang
Jan 24, 2018·Environmental Science and Pollution Research International·Imran AliVladimir A Grachev
Sep 29, 2017·International Journal of Environmental Research and Public Health·Xiaoming HuangMin Pan
Oct 27, 2017·International Journal of Environmental Research and Public Health·Lianqin ZhaoDeyi Wu
Oct 11, 2017·Environmental Science and Pollution Research International·Saber BoubakriRafik Kalfat
Dec 21, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Jianjun WangXiangke Wang
May 5, 2018·Journal of Radioanalytical and Nuclear Chemistry·H MohamudN I Ward
Feb 27, 2016·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Xiangxue WangXiangke Wang
Apr 24, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Yubing SunXiangke Wang
Dec 22, 2017·Physical Chemistry Chemical Physics : PCCP·V N BliznyukB A Powell
Jun 24, 2017·International Journal of Environmental Research and Public Health·Dan ZhouXianping Luo
Jan 5, 2021·Environmental Science and Pollution Research International·Xiaofeng HuangJinlong Jiang
Oct 23, 2018·Water Research·Jinxiang LiXiaohong Guan

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