Self-powered electrochemical water treatment system for pollutant degradation and bacterial inactivation based on high-efficient Co(OH)_(2)/Pt electrocatalyst  

作　　者：Zhuo Wang Xi Liang Zhirong Liu Tian Huang Shaobo Wang Shuncheng Yao Yiming Ding Jiaming Zhang Xingyi Wan Zhong Lin Wang Linlin Li 

机构地区：[1]Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 101400,China [2]School of Nanoscience and Technology,University of Chinese Academy of Sciences,Beijing 100049,China [3]Center on Nanoenergy Research,School of physical Science and Technology,Guangxi University,Nanning 530004,China [4]School of Materials Science and Engineering,Georgia Institute of Technology,Atlanta,GA 30332-0245,USA

出　　处：《Nano Research》2023年第2期2192-2198,共7页纳米研究（英文版）

基　　金：supported by the Strategic Priority Research Program of The Chinese Academy of Sciences(No.XDA16021103);National Natural Science Foundation(Nos.82072065 and 81471784);the National Youth Talent Support Program and the China Postdoctoral Science Foundation(Nos.BX2021299 and 2021M703166);the Fundamental Research Funds for the Central Universities.

摘　　要：Electrochemical system with electro-Fenton reaction is an effective pathway for oxidative degradation of refractory organic pollutants for water treatment.However,the method is limited by the low catalytic efficiency and high electrical cost in practical applications.This work presents a self-powered and high-efficient electrochemical system for water treatment including pollutant degradation and bacterial inactivation,which is composed of a self-powered triboelectric nanogenerator(TENG)converting mechanical energy into electrical energy,a power management circuit integrated with a supercapacitor to store the harvesting electrical energy temporarily,and an electrochemical setup integrated with two-dimentional Co(OH)_(2)/Pt nanosheet as electrocatalyst.The nanocatalyst,ultrafine Pt nanoparticles(Pt NPs)loaded on Co(OH)_(2) nanosheet(Co(OH)_(2)/Pt),is synthesized by a facile one step hydrothermal reaction without any surfactant,which can improve H_(2)O_(2)and hydroxyl radical production via redox reaction.This self-powered electrocatalytic system is able to degrade nearly 100%of organic pollutant within 100 min,and efficiently kill bacteria.This work shows great potential to develop high-efficient and self-powered electrochemical water treatment system through integrating TENG and nanocatalyst.

关 键 词：triboelectric nanogenerator ELECTRO-CATALYSIS SELF-POWERED water treatment NANOCATALYST 

分 类 号：O62[理学—有机化学]