文献类型：期刊文献

英文题名：Functionalized dithiocarbamate chelating resin for the removal of Co2+ from simulated wastewater

作者：Shi, Xuewei[1,2];Fu, Linwei[2];Wu, Yanyang[2];Zhao, Huiling[1];Zhao, Shuangliang[2];Xu, Shouhong[1]

机构：[1]East China Univ Sci & Technol, Dept Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：7

期号：8

起止页码：4351

外文期刊名：APPLIED WATER SCIENCE

收录：EI(收录号：20174904509079);WOS:【ESCI(收录号:WOS:000416833900015)】；

基金：This work is supported by the National Basic Research Program of China (2014CB748500), the National Natural Science Foundation of China (No. 91434110), the 111 Project of China (No. B08021) and the Fundamental Research Funds for the Central Universities of China. YW also acknowledges the support of Shanghai Pujiang Program (Grant No. 16PJD019).

语种：英文

外文关键词：DTC resin; Co(II) removal; Adsorption kinetics; Wastewater

摘要：Industrial wastewater that contains trace amounts of heavy metal ions is often seen in petrochemical industry. While this wastewater can not be directly discharged, it is difficult to treat due to the low concentration of metal ions. Introducing chelating reagents into this wastewater for selective ion adsorption, followed by a mechanical separation process, provides an appealing solution. Toward the success of this technology, the development of effective chelating resins is of key importance. In the present work, a chelating resin containing amino and dithiocarbamate groups was reported for the removal of Co(II) metal ions in trace concentrations from simulated wastewater. By investigating the adsorption performance of the chelating resin at different solution pH values, adsorbent dosages, contact time, initial ion concentrations, and adsorption temperatures, the maximum adsorption capacity of the resin for Co(II) was identified to be 24.89 mg g(-1) for a 2 g L-1 adsorbent dosage and a pH value of 5. After four adsorption-desorption cycles, 97% of the adsorption capacity of the resin was maintained. The adsorption kinetics and thermodynamics were analyzed and discussed as well.