Adsorption and Photocatalysis Performance of Bi4Ti3O12 Nanoparticles Synthesized via a Polyacrylamide Gel Route

doi:10.2320/matertrans.M2016212

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	Adsorption and Photocatalysis Performance of Bi4Ti3O12 Nanoparticles Synthesized via a Polyacrylamide Gel Route
	Cui, Z. M.; Yang, H.; Zhang, M.; Zhang, H. M.; Su, J. Y.; Li, R. S.
刊名	MATERIALS TRANSACTIONS
	2016
卷号	57 期号:10 页码:1766-1770
关键词	Bi4Ti3O12 nanoparticles polyacrylamide gel route active species photocatalytic mechanism
ISSN号	1345-9678
DOI	10.2320/matertrans.M2016212
英文摘要	A polyacrylamide gel route was adopted to synthesize Bi4Ti3O12 nanoparticles and the effect of chelating agents on the products was investigated. When citric acid and acetic acid is separately used as the chelating agent, single-phase Bi4Ti3O12 samples can be prepared at a calcination temperature of 500 degrees C; however, when tartaric acid or EDTA is used as the chelating agent, a higher calcination temperature of 600 degrees C is required to produce single-phase samples. SEM observation shows that the as-prepared samples are composed of sphere-like or ellipsoid-like particles. The average particle size of the citric acid-, acetic acid-, tartaric acid-, and EDTA-resulted samples is centered around 32, 35, 90 and 120 nm, respectively. The bandgap energy of the four samples is measured to be 3.27 eV by ultraviolet-visible diffuse reflectance spectroscopy. The photocatalytic activity of Bi4Ti3O12 samples was evaluated by degrading RhB under simulated-sunlight irradiation, and the influence of pH value on the adsorption and photocatalytic degradation of the dye was also investigated. Ethanol, BQ and AO were respectively used as the scavengers of center dot OH, center dot O-2(-) and h(+) to investigate their effect on the photocatalytic degradation with the aim of revealing the photocatalytic mechanism involved. Based on the experimental results, the direct oxidation by h(+) is suggested to be the main mechanism toward the dye degradation.
资助项目	National Natural Science Foundation of China[51262018] ; Hongliu Outstanding Talents Foundation of Lanzhou University of Technology[J201205]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JAPAN INST METALS
WOS记录号	WOS:000388453000016
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33807]
专题	理学院图书馆
通讯作者	Yang, H.
作者单位	Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Cui, Z. M.,Yang, H.,Zhang, M.,et al. Adsorption and Photocatalysis Performance of Bi4Ti3O12 Nanoparticles Synthesized via a Polyacrylamide Gel Route[J]. MATERIALS TRANSACTIONS,2016,57(10):1766-1770.
APA	Cui, Z. M.,Yang, H.,Zhang, M.,Zhang, H. M.,Su, J. Y.,&Li, R. S..(2016).Adsorption and Photocatalysis Performance of Bi4Ti3O12 Nanoparticles Synthesized via a Polyacrylamide Gel Route.MATERIALS TRANSACTIONS,57(10),1766-1770.
MLA	Cui, Z. M.,et al."Adsorption and Photocatalysis Performance of Bi4Ti3O12 Nanoparticles Synthesized via a Polyacrylamide Gel Route".MATERIALS TRANSACTIONS 57.10(2016):1766-1770.