naa a22 4500 510748805 CHVBK 20180411083057.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11270-012-1372-5 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1372-5 Highly Efficient Removal of Cu(II) from Aqueous Solution by Using Graphene Oxide [Elektronische Daten] [Wenqin Wu, Yan Yang, Haihui Zhou, Tingting Ye, Zhongyuan Huang, Rui Liu, Yafei Kuang] Graphene oxide (GO) prepared by modified hummers method was used as adsorbent for removal of heavy metal ions. The oxygenous functional groups on the surface of GO were primarily responsible for the sorption of metal ions. The effects of the parameters of pH value, contact time, Cu(II) concentration, and adsorbent dosage on adsorption were examined. The sorption process conformed to the Freundlich isotherm, and the maximum sorption capacity of 117.5mg g−1 was observed at an initial pH value of 5.3 after agitating for 150min. It was also found that Cu-pretreated GO could be desorbed by HCl and the reusability of GO could still maintain above 90% of its initial capability after ten cycles. The results suggest that GO is an effective adsorbent for copper ions removal in water treatment. Springer Science+Business Media Dordrecht, 2012 Graphene oxide nationallicence Adsorption nationallicence Copper ions nationallicence Wastewater treatment nationallicence Wu Wenqin State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Yang Yan State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Zhou Haihui State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Ye Tingting State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Huang Zhongyuan State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Liu Rui State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Kuang Yafei State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-8 0049-6979 224:1<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1372-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1372-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Wenqin State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 700 1- Yang Yan State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 700 1- Zhou Haihui State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 700 1- Ye Tingting State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 700 1- Huang Zhongyuan State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 700 1- Liu Rui State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 700 1- Kuang Yafei State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, 410082, Changsha, China aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-8 0049-6979 224:1<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer