Alternative photothermal/electrothermal hierarchical membrane for hypersaline water treatment  

作　　者：Miao Wang Wen He Yuhui Hua Xinwen Xie Shiyan Chen Lei Zhou Yunmao Zhang Yaqi Hou Shihong Lin Haiping Xia Jing Zheng Xu Hou 

机构地区：[1]State Key Laboratory of Physical Chemistry of Solid Surfaces,Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,China [2]College of Materials,Xiamen University,Xiamen,China [3]Research Institute for Biomimetics and Soft Matter,Fujian Provincial Key Laboratory for Soft Functional Materials Research,Jiujiang Research Institute,College of Physical Science and Technology,Xiamen University,Xiamen,China [4]Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis,Department of Chemistry,Southern University of Science and Technology,Shenzhen,China [5]Collaborative Innovation Center of Chemistry for Energy Materials(iChEM),Xiamen University,Xiamen,China [6]Department of Civil and Environmental Engineering,Vanderbilt University,Nashville,Tennessee,USA [7]Interdisciplinary Material Science Program,Vanderbilt University,Nashville,Tennessee,USA [8]Tan Kah Kee Innovation Laboratory,Xiamen University,Xiamen,China [9]Engineering Research Center of Electrochemical Technologies of Ministry of Education,Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,China

出　　处：《SusMat》2022年第6期679-688,共10页可持续发展材料（英文）

基　　金：National Key R&D Program of China,Grant/Award Number:2018YFA0209500;National Natural Science Foundation of China,Grant/Award Numbers:21621091,21975209,52025132。

摘　　要：Over the last decades,the treatment of the large quantities of hypersaline wastewater generated by conventional industries,inland desalination,and fossil-fueled power plants has been an important economic issue and also an inescapable green issue.Here,we developed a versatile interfacial heating membrane with alternating utilization of electricity or solar energy for hypersaline water treat-ment.This hierarchical membrane functions both as a separation membrane and an interface heater,which can quickly(<0.1 s)convert electricity or solar energy into heat to evaporate the outermost layer of hypersaline water.For 10wt% hyper-saline water,the freshwater production rate can reach 16.8kg/m^(2)⋅h by applying a voltage of 10 V and 1.36 kg/m^(2)⋅h under 1-sun illumination.Moreover,it exhibits high electrochemical resistance to corrosion and therefore remains stable tack-ling hypersaline water(>5 wt%),with a high salt rejection rate of 99.99%.This system shows an efficient desalination strategy that can provide fresh water from brines for agriculture and industry,and even for daily life.

关 键 词：carbon nanotubes ELECTROTHERMAL hypersaline water treatment interface evaporate pho-tothermal 

分 类 号：X703[环境科学与工程—环境工程]