Facile preparation of multifunctional Cu_(2−x)S/S/rGO composite for all-round residual water remediation during interfacial solar driven water evaporation process  

作　　者：Chaorui Xue Yang Shen Qian Zhang Qing Chang Ning Li Ying Li Wenjing Zheng Shengliang Hu Jinlong Yang 

机构地区：[1]School of Energy and Power Engineering,North University of China,Taiyuan 030051,China [2]School of Materials Science and Engineering,North University of China,Taiyuan 030051,China [3]State Key Laboratory of New Ceramics and Fine Processing,Tsinghua University,Beijing 100084,China

出　　处：《Nano Research》2023年第4期5953-5963,共11页纳米研究（英文版）

基　　金：supported by the key research and development program of Shanxi Province(International Cooperation)(No.201903D421082);Natural Science Foundation of Shanxi Province(No.20210302123029);the National Natural Science Foundation of China(Nos.51602292 and 22105181);Scientific and Technological Innovation Programs of Higher Education in Shanxi(Nos.2019L0589 and 2020L0279).

摘　　要：Presently,interfacial solar water evaporation(ISWE)is now injecting new vitality into the field of water remediation.However,during the ISWE process,the nonvolatile pollutants might be concentrated in residual water,and further contaminate the environment.Preparing advanced photothermal materials is in need to get comprehensive purification of various pollutants in residual water.Herein,we report a facile laser thermal method to prepare Cu_(2−x)S/sulfur/reduced graphene oxide(Cu_(2−x)S/S/rGO)nanocomposites for realizing all-round residual water remediation during the ISWE process.The as-prepared Cu2−xS/S/rGO nanocomposites demonstrated excellent photothermal and photocatalytic properties.Through blending with GO nanosheets having excellent adsorption capacity,the synergetic effect of photothermal,photocatalytic,and adsorption properties resulted in highly efficient purification of rhodamine B,bacterial,and heavy metal ions in residual water during the ISWE process.The experimental results also showed that,increasing solar light intensity can promote the residual water remediation,but ultrafast water evaporation under high light intensity may deteriorate the purifying effect.This report may pave a new way to prepare multifunctional materials for water remediation through the ISWE technology.

关 键 词：solar water evaporation PHOTOTHERMAL laser thermal PHOTOCATALYSIS ANTI-BACTERIAL 

分 类 号：TB34[一般工业技术—材料科学与工程]