Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes

doi:10.1016/j.eti.2020.101112

IEECAS OpenIR > 粉尘与环境研究室

	Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes
	Minh-Thuan Pham 1; Dai-Phat Bui 2; Lin, In-Fu 1; Nguyen Hoang Phuong 2,3; Huang, Yu 4; Cao, Junji 4; You, Sheng-Jie 1,5,6; Wang, Ya-Fen 1,5,6
通讯作者	Wang, Ya-Fen(yfwang@cycu.edu.tw)
	2020-11-01
发表期刊	ENVIRONMENTAL TECHNOLOGY & INNOVATION
ISSN	2352-1864
卷号	20 页码:12
摘要	The increase of formaldehyde in the air causes many problems in the environment. The photocatalytic method is green, inexpensive, high sufficiency, but challenging to use because of photocatalysts' wide bandgap working only under the UV light, which is accounted for less than 5% of the sunlight. Here, gold-assisted ZnSn(OH)(6) microcubes (Au:cZHS) were produced by a hydrothermal process of cZHS, a well-known catalyst for NOx and VOCs removal. The existence and unique morphology of the Au:cZHS composites were confirmed by the characterizations of X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), Raman spectroscopy, field-emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The band structure and charge-transfer processes of the materials were evaluated from the results of the UV-Vis diffuse reflectance spectroscopy (DRS), electrochemical impedance spectroscopy (EIS), and Mott-Schottky. These results indicated the Au:cZHS composites have a high sufficiency of charge transport and near-visible light absorption. The electron spin resonance (ESR) was also used to determine reactive oxygen species producing from photocatalytic reactions. In addition, the reaction rates and apparent quantum efficiency (AQE) were calculated for a better comparison with other studies. In addition, the 10% Au:cZHS removed more than 70% of 1 ppb formaldehyde (HCHO) under solar light. These results indicate that the Au:cZHS is a promising photocatalyst for air treatment. (C) 2020 Published by Elsevier B.V.
关键词	Air treatment Formaldehyde Gold Photocatalysis Surface plasmon resonance ZnSn(OH)(6)
DOI	10.1016/j.eti.2020.101112
收录类别	SCI ; SCI
语种	英语
资助项目	Chung Yuan Christian University, Taiwan[109609432] ; Chung Yuan Christian University ; Faculty of Materials Science, Research and Development Center for Membrane Technology[Chung-Li 320] ; Ho Chi Minh City University of Technology
WOS研究方向	Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology
项目资助者	Chung Yuan Christian University, Taiwan ; Chung Yuan Christian University ; Faculty of Materials Science, Research and Development Center for Membrane Technology ; Ho Chi Minh City University of Technology
WOS类目	Biotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000597139100004
出版者	ELSEVIER
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15728
专题	粉尘与环境研究室
通讯作者	Wang, Ya-Fen
作者单位	1.Chung Yuan Christian Univ, Dept Environm Engn, Taoyuan 32023, Taiwan 2.Univ Sci, Fac Mat Sci & Technol, VNU HCM, Ho Chi Minh City 700000, Vietnam 3.Ho Chi Minh City Univ Food Ind HUFI, Fac Environm Nat Resources & Climate Change, Ho Chi Minh City 700000, Vietnam 4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 5.Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Taoyuan 32023, Taiwan 6.Chung Yuan Christian Univ, Ctr Environm Risk Management, Taoyuan 32023, Taiwan
推荐引用方式 GB/T 7714	Minh-Thuan Pham,Dai-Phat Bui,Lin, In-Fu,et al. Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2020,20:12.
APA	Minh-Thuan Pham.,Dai-Phat Bui.,Lin, In-Fu.,Nguyen Hoang Phuong.,Huang, Yu.,...&Wang, Ya-Fen.(2020).Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes.ENVIRONMENTAL TECHNOLOGY & INNOVATION,20,12.
MLA	Minh-Thuan Pham,et al."Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes".ENVIRONMENTAL TECHNOLOGY & INNOVATION 20(2020):12.