Self-powered electrochemical system by combining Fenton reaction and active chlorine geheration for organic contaminant treatment  

作　　者：Yawei Feng Kai Han Tao Jiang Zhenfeng Bian Xi Liang Xia Cao Hexing Li Zhong Lin Wang 

机构地区：[1]CAS Center for Excellence in Nanoscience,Beijing Key Laboratory of Micro-nano Energy and Sensor,Bejing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Bejing 100083,China [2]School of Nanoscience and Technology University of Chinese Academy of Sciences,Beijing 100049,China [3]Education Ministry Key and International Joint Lab of Resoure Chemistry and Shanghai Key Lab of Rare Earth Functional Materials,Shanghai Normal University,Shanghai 200234,China [4]School of Environmental and Chemical Engineering,Shanghai Uriversity of Elecric Power,Shanghai 200090,China [5]School of Material Science and Engineering Georgia Institute of Technology,Atlanta,GA 30332,USA

出　　处：《Nano Research》2019年第11期2729-2735,共7页纳米研究（英文版）

基　　金：the National Key Technology R&D Program of China(No.2016YFA0202704);Beijing Municipal Science 8c Technology Commission(Nos.Z171100000317001,Z171100002017017,and Y3993113DF);the National Natural Science Foundation of China(Nos.51432005,5151101243,51561145021,and 21761142011).

摘　　要：Environmental deterioration,especially water pollution,is widely dispersed and could affect the quality of people's life at large.Though the sewage treatment plants are constructed to meet the demands of cities,distributed treatment units are still in request for the supplementary of centralized purification beyond the range of plants.Electrochemical degradation can reduce organic pollution to some degree,but it has to be powered.Triboelectric nanogenerator(TENG)is a newly-invented technology for low-frequency mechanical energy harvesting.Here,by integrating a rotary TENG(R-TENG)as electric power source with an electrochemical cell containing a modified graphite felt cathode for hydrogen peroxide(H2O2)along with hydroxyl radical(·OH)generation by Fenton reaction and a platinum sheet anode for active chlorine generation,a self-powered electrochemical system(SPECS)was constructed.Under the driven of mechanical energy or wind flow,such SPECS can efficiently degrade dyes after power management in neutral condition without any O2 aeration.This work not only provides a guideline for optimizing self-powered electrochemical reaction,but also displays a strategy based on the conversion from distributed mechanical energy to chemical energy for environmental remediation.

关 键 词：self-powered electrochemistry Fenton reaction active chlorine organic contaminant degradation 

分 类 号：X70[环境科学与工程—环境工程]