Nano-Au-modified TiO 2 grown on dendritic porous silica particles for enhanced CO 2 photoreduction

doi:10.1016/j.micromeso.2020.110635

	Nano-Au-modified TiO 2 grown on dendritic porous silica particles for enhanced CO 2 photoreduction
	Wang, Xuan 3; Xuan, Xiaoni 3; Wang, Yabin 1; Li, Xiaoyu 4; Huang, Hongwei 2; Zhang, Xueji 3; Du, Xin 3
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2021
卷号	310 页码:10
关键词	Dendritic porous silica TiO2 nanoparticles br Au nanoparticles Photocatalysis Carbon dioxide reduction
ISSN号	1387-1811
DOI	10.1016/j.micromeso.2020.110635
英文摘要	Titania dioxide (TiO2) is widely studied for photocatalytic CO2 reduction among various semiconductor pho-tocatalysts due to simple preparation, low cost, high stability and suitable band gap. However, the CO2 conversion efficiency of most TiO2-based photocatalysts is still relatively low, especially in the visible light region owing to their weak light absorption capacity. In this work, we employed dendritic porous silica nanospheres (DPSNs) with center-radial large pores as a carrier to grow TiO2 nanoparticles (NPs) on the surface of center radial pores and then load small Au NPs on the well-dispersed TiO2 NPs. Eventually, a series of DPSNs@TiO2@Au nanocomposites with different sizes of Au NPs were successfully constructed by controlling the calcination time. Due to the introduction of Au with the Local Surface Plasmaon Resonance (LSPR) effect, DPSNs@TiO2@Au with appropriate size (3-5 nm) of Au NPs exhibited superior CH4 production rate of 34.25 mu molg-TiO2@Au1h-1, medium CO production rate of 15.27 mu molg-TiO2@Au-1h-1 and high cycle stability under simulated sunlight irradiation with 300 W Xe lamp. This work may provide some inspiration for the design of the supported photocatalysts.
资助项目	Fundamental Research Funds for the Central Universities[FRF-TP-19-017B1] ; National Natural Science Foundation of China[21501009] ; National Natural Science Foundation of China[51971208] ; Beijing Municipal Science and Technology Commission[z131102002813058]
WOS关键词	PHOTOCATALYTIC REDUCTION ; FIBROUS NANOSILICA ; CHARGE SEPARATION ; AQUEOUS-SOLUTION ; RHODAMINE-B ; NANOSPHERES ; AU/TIO2 ; SURFACE ; SIZE ; NANOPARTICLES
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000585271200004
资助机构	Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Beijing Municipal Science and Technology Commission
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42582]
专题	中国科学院过程工程研究所
通讯作者	Wang, Yabin; Li, Xiaoyu; Huang, Hongwei; Du, Xin
作者单位	1.Yanan Univ, Coll Chem & Chem Engn, Shaanxi Key Lab Chem React Engn, Yanan 716000, Shaanxi, Peoples R China 2.China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China 3.Univ Sci & Technol Beijing, Res Ctr Bioengn & Sensing Technol, Dept Chem & Biol Engn, Beijing Key Lab Bioengn & Sensing Technol, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xuan,Xuan, Xiaoni,Wang, Yabin,et al. Nano-Au-modified TiO 2 grown on dendritic porous silica particles for enhanced CO 2 photoreduction[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2021,310:10.
APA	Wang, Xuan.,Xuan, Xiaoni.,Wang, Yabin.,Li, Xiaoyu.,Huang, Hongwei.,...&Du, Xin.(2021).Nano-Au-modified TiO 2 grown on dendritic porous silica particles for enhanced CO 2 photoreduction.MICROPOROUS AND MESOPOROUS MATERIALS,310,10.
MLA	Wang, Xuan,et al."Nano-Au-modified TiO 2 grown on dendritic porous silica particles for enhanced CO 2 photoreduction".MICROPOROUS AND MESOPOROUS MATERIALS 310(2021):10.