Facile one-pot solvothermal preparation of Modoped Bi2WO6 biscuit-like microstructures for visible-light-driven photocatalytic water oxidation

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 大科学装置

	Facile one-pot solvothermal preparation of Modoped Bi2WO6 biscuit-like microstructures for visible-light-driven photocatalytic water oxidation
	Etogo, A; Liu, R; Ren, JB; Qi, LW; Zheng, CC; Ning, JQ(宁吉强); Zhong, YJ; Hu, Y
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2016
卷号	4 期号:34
通讯作者	Hu, Y
英文摘要	The adsorption behavior and the separation efficiency of photogenerated electron-hole pairs are two important elements in estimating the photocatalytic activity of a photocatalyst. In this work, we have developed a facile one-pot solvothermal method for the preparation of Mo-doped Bi2WO6 with uniform three-dimensional (3D) hierarchical porous biscuit-like microstructures (PBMs). Mo doping is found to have two important roles in the synthesis of Bi2WO6 particles, leading to porous microstructures and adjusting band gaps of the Bi2MoxW1-xO6 particles. The band structure of the as-prepared porous Bi2MoxW1-xO6 products is characterized by UV-vis diffuse reflectance spectroscopy and valence-band X-ray photoelectron spectroscopy. Density functional theory (DFT) calculations give further insights into the band structure of the Bi2MoxW1-xO6 products. In all the samples, Bi2Mo0.21W0.79O6 PBMs exhibit a very efficient catalytic performance in oxidizing water under visible light irradiation (lambda > 420 nm), with an average O-2 evolution rate of up to 147.2 mu mol h(-1) g(-1) and an apparent quantum efficiency (QE) of 3.1% at 420 nm, representing a 2 times more enhancement compared with the non-doped Bi2WO6 sample. This study provides a simple method for designing metal-doped semiconductors with porous structures for different applications.
关键词[WOS]	RAMAN-SPECTROSCOPY ; HETEROSTRUCTURED MICROSPHERES ; CERIA NANOCRYSTALS ; DOPED BI2WO6 ; SUBSTITUTION ; PHOTOACTIVITY ; PERFORMANCE ; OXIDE ; HETEROJUNCTION ; IRRADIATION
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000382110200027
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/4890]
专题	苏州纳米技术与纳米仿生研究所_大科学装置
推荐引用方式 GB/T 7714	Etogo, A,Liu, R,Ren, JB,et al. Facile one-pot solvothermal preparation of Modoped Bi2WO6 biscuit-like microstructures for visible-light-driven photocatalytic water oxidation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(34).
APA	Etogo, A.,Liu, R.,Ren, JB.,Qi, LW.,Zheng, CC.,...&Hu, Y.(2016).Facile one-pot solvothermal preparation of Modoped Bi2WO6 biscuit-like microstructures for visible-light-driven photocatalytic water oxidation.JOURNAL OF MATERIALS CHEMISTRY A,4(34).
MLA	Etogo, A,et al."Facile one-pot solvothermal preparation of Modoped Bi2WO6 biscuit-like microstructures for visible-light-driven photocatalytic water oxidation".JOURNAL OF MATERIALS CHEMISTRY A 4.34(2016).