Conductive Black Titania Nanomaterials for Efficient Photocatalytic Degradation of Organic Pollutants

doi:10.1007/s10562-019-02941-1

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	Conductive Black Titania Nanomaterials for Efficient Photocatalytic Degradation of Organic Pollutants
	Bi, QY; Huang, XY; Dong, YC; Huang, FQ
	2020-05-01
Source Publication	CATALYSIS LETTERS
ISSN	1011-372X
Issue	5 Pages:1346
Subtype	Article
Abstract	Titanium dioxide (TiO2) as an important semiconductor is widely used in the fields of solar cell, solar thermal collectors, and photocatalysis, but the visible-light power harvest remains insufficient due to the little effective visible-light absorption and many carrier-recombination centers originating from the wide band gap structure. Herein, conductive black titania (BT) nanomaterials with crystalline-TiO2-core/amorphous-TiO2-x-shell structure prepared through two-zone Al-reduction route are found efficient in photocatalyzing the degradation of organic pollutants to environmentally friendly products under full solar and even visible light irradiation. The unique core-shell structure and numerous surface oxygen vacancies or Ti3+ species in the amorphous layer accompanying prominent physicochemical properties of narrow band gap, high carrier concentration, high electron mobility, and excellent separation and transportation of photoinduced e(-)-h(+) pairs result in exceptional photocatalytic efficiency. The optimized BT-500 (pristine TiO2 treated at 500 degrees C during two-zone Al-reduction process) catalyst achieves superior photocatalytic degradation rates for toluene and ethyl acetate as well as an excellent photostability with high degradation efficiency of 93% for the 6th reuse. Graphic
DOI	10.1007/s10562-019-02941-1
WOS Keyword	TIO2 NANOCRYSTALS ; SOLAR ABSORPTION ; RUTILE ; ANATASE ; CO2 ; PARAMETERS ; OXIDATION ; NANOSHEETS ; REDUCTION
Language	英语
WOS Research Area	Chemistry
Publisher	SPRINGER
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/28099
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Bi, QY,Huang, XY,Dong, YC,et al. Conductive Black Titania Nanomaterials for Efficient Photocatalytic Degradation of Organic Pollutants[J]. CATALYSIS LETTERS,2020(5):1346.
APA	Bi, QY,Huang, XY,Dong, YC,&Huang, FQ.(2020).Conductive Black Titania Nanomaterials for Efficient Photocatalytic Degradation of Organic Pollutants.CATALYSIS LETTERS(5),1346.
MLA	Bi, QY,et al."Conductive Black Titania Nanomaterials for Efficient Photocatalytic Degradation of Organic Pollutants".CATALYSIS LETTERS .5(2020):1346.

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