文献类型：期刊文献

英文题名：Developing stretchable and graphene-oxide-based hydrogel for the removal of organic pollutants and metal ions

作者：Dong, Chencheng;Lu, Jie;Qiu, Bocheng;Shen, Bin;Xing, Mingyang[1];Zhang, Jinlong[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：222

起止页码：146

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20174304292300);WOS:【SCI-EXPANDED(收录号:WOS:000414113400015)】；

基金：This work has been supported by National Nature Science Foundation of China (21577036, 21377038, 21237003 and 21677048) and State Key Research Development Program of China (2016YFA0204200) and sponsored by "Chenguang Program" supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (14CG30), Science and Technology Commission of Shanghai Municipality(16JC1401400, 17520711500), and sponsored by Shanghai Pujiang Program (17PJD011) and the Fundamental Research Funds for the Central Universities (22A201514021, 222201717003).

语种：英文

外文关键词：Hydrogel; Graphene oxide; Photocatalytic Fenton reaction; Heavy metal ions; Organic pollutants

摘要：It remains challenging to process the industrial wastewater of high consistence of organic pollutants and difficult decomposition of heavy metal ions. In this study, we develop a functional nanocomposite hydrogel with a highly photocatalytic Fenton reaction activity for the degradation of organic pollutants and adsorption for the heavy metal ions. The hydrogel is made up of Fe(3)o(4) nanoparticles, reduced graphene oxide (RGO) and polyacrylamide (PAM), which is prepared by a two-step chemical synthetic method, and exhibits the outstanding mechanical strength, Photo-Fenton activity, adsorptive property and reversibility. For the degradation of organic dyes, the Fe3O4/RGO/PAM hydrogel can degrade the 20 mg/L Rhodamine B (RhB) for 90% within 60 min under visible light irradiation, and even after 10 times cycle test, the degradation rate for RhB still keeps at 90%. Meanwhile, it can degrade the actual sewage of fine chemical wastewater, whose COD (Chemical Oxygen Demand) decreases from 10400 to 2840 mg/L after one hour's visible irradiation. For the synchronous removal of organic pollutants and heavy metal ions over hydrogel, the degradation data of 20 mg/L RhB can be up to 90% with 20 min under visible light irradiation, and the removal rate of various metal ions can reach up to 34.8%-66.3% after continual two days' adsorption. This study provides a new pathway to process the industrial wastewater of high consistence and difficult decomposition.