A self-cleaning window for high-efficiency photodegradation of indoor formaldehyde  

作　　者：Changzhu Huang Wei Dai Shimao Deng Yixin Tian Xiaolin Liu Jia Lin Hong Chen 

机构地区：[1]Department of Physics,Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power,Shanghai University of Electric Power,Shanghai 200090,China [2]Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials,State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China [3]Eastern Institute for Advanced Study,Eastern Institute of Technology,Ningbo 315200,China

出　　处：《Chinese Chemical Letters》2024年第9期340-345,共6页中国化学快报（英文版）

基　　金：supported by the National Key Research and Development Programme of China(No.2021YFA1202500,H.C.);Foundation of Shenzhen Science,Technology and Innovation Commission(SSTIC)(Nos.20231122110855002,JCYJ20200109141625078,H.C.);National Natural Science Foundation of China(No.12174246,J.L.);Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials(No.ZDSYS20200421111401738,H.C.);Natural Science Funds for Distinguished Young Scholar of Guangdong Province,China(No.2020B151502094,H.C.)。

摘　　要：Formaldehyde(HCHO)as an indoor air pollutant released by new furniture and decorative materials is of great concern.Developing a self-cleaning device to remove HCHO is an ideal way to improve indoor air quality.In this study,a self-cleaning window with a multilayered structure constructed from fluorinedoped tin oxide/bismuth tungstate/resorcinol-formaldehyde resin(FTO/Bi_(2)WO_(6)/RF)has been fabricated,which is capable of degrading HCHO in natural indoor condition.The as-fabricated device could utilize the natural room light and promote the generation and transfer of the photocatalytic carriers in Bi_(2)WO_(6),which subsequently delivers a good catalytic oxygen reduction efficiency in RF to produce hydrogen peroxide(H_(2)O_(2)).The as-synthesized H_(2)O_(2)could further split into hydroxyl radicals(•OH),then oxide the HCHO molecules in the air.The present study demonstrates a novel and efficient strategy to fabricate a transparent multifunctional window for self-cleaning indoor gaseous pollutants,the concept is of great importance to be expanded in a broad range of indoor furniture for in-house air pollution control.

关 键 词：Bismuth tungstate Resorcinol-formaldehyde Photocatalysis Hydrogen peroxide HCHO degradation 

分 类 号：TU228[建筑科学—建筑设计及理论] X51[环境科学与工程—环境工程]