Synthesis of visible-light-driven BiOBrxI1-xsolid solution nanoplates by ultrasound-assisted hydrolysis method with tunable bandgap and superior photocatalytic activity

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 广州中国科学院沈阳自动化研究所分所

	Synthesis of visible-light-driven BiOBrxI1-xsolid solution nanoplates by ultrasound-assisted hydrolysis method with tunable bandgap and superior photocatalytic activity
	Lv HQ(吕海钦); Meng QG(孟庆国); Lu, Junlin ; Zhou, Guofu ; Zhang, Zhang ; Chen ZH(陈志鸿); Yuan MZ(苑明哲); Wang, Xin ; Liu, Jun-Ming ; Jin, Mingliang
刊名	Journal of Alloys and Compounds
	2018
卷号	732 页码:167-177
关键词	BiOBrxI1-x solid solution Visible-light-driven photocatalysts Nanoplates
ISSN号	0925-8388
通讯作者	Chen ZH(陈志鸿)
产权排序	2
中文摘要	In this study, a series of visible-light-driven BiOBrxI1-xsolid solution nanoplates photocatalysts are successfully prepared by an ultrasound-assisted hydrolysis method, which does not use organic reagents, with advantages of cost-effectiveness and non-toxicity. Under visible-light irradiation, all of the as-prepared BiOBrxI1-xnanoplates exhibit superior photocatalytic activities compared to those of pure BiOBr and BiOI for the degradation of methyl orange (MO). BiOBr0.3I0.7exhibits the highest photocatalytic activity, corresponding to the degradation of 92% MO in 40 min under visible-light irradiation. The structures and elemental composition of the as-prepared BiOBrxI1-xnanoplates samples are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, and high-resolution transmission electron microscopy. From the results obtained from X-ray photoelectron spectroscopy, UV–vis diffuse reflectance spectroscopy, and transient time-resolved luminescence decay, it is suggested that the enhanced photocatalytic activity of BiOBrxI1-xis possibly related to the narrowing of the band gap and high separation of the photo-generated electron–hole pairs. Electron paramagnetic resonance and mechanistic experiments indicated that [rad]O2−and h+are active radicals for photocatalytic degradation. In conclusion, an ultrasound-assisted hydrolysis method which is free of organic reagents is developed for synthesizing BiOBrxI1-xnanoplates photocatalysts with tunable bandgap and enhanced photocatalytic activity.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	BIOX X ; HIGHLY EFFICIENT ; IRRADIATION ; WATER ; DEGRADATION ; HETEROJUNCTION ; CL ; BR ; REMOVAL ; DYE
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000415931900021
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/21223]
专题	沈阳自动化研究所_广州中国科学院沈阳自动化研究所分所
作者单位	1.Institute of Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, Guangdong Province, China 2.International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangdong Province, China 3.Shenyang Institute of Automation Guangzhou, Chinese Academy of Sciences, Guangzhou, 511458, China 4.Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, Guangdong Province, China 5.Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
推荐引用方式 GB/T 7714	Lv HQ,Meng QG,Lu, Junlin,et al. Synthesis of visible-light-driven BiOBrxI1-xsolid solution nanoplates by ultrasound-assisted hydrolysis method with tunable bandgap and superior photocatalytic activity[J]. Journal of Alloys and Compounds,2018,732:167-177.
APA	Lv HQ.,Meng QG.,Lu, Junlin.,Zhou, Guofu.,Zhang, Zhang.,...&Shui, Lingling.(2018).Synthesis of visible-light-driven BiOBrxI1-xsolid solution nanoplates by ultrasound-assisted hydrolysis method with tunable bandgap and superior photocatalytic activity.Journal of Alloys and Compounds,732,167-177.
MLA	Lv HQ,et al."Synthesis of visible-light-driven BiOBrxI1-xsolid solution nanoplates by ultrasound-assisted hydrolysis method with tunable bandgap and superior photocatalytic activity".Journal of Alloys and Compounds 732(2018):167-177.