NaBH4-Reduction Induced Evolution of Bi Nanoparticles from BiOCl Nanoplates and Construction of Promising Bi@BiOCl Hybrid Photocatalysts

doi:10.3390/catal9100795

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	NaBH4-Reduction Induced Evolution of Bi Nanoparticles from BiOCl Nanoplates and Construction of Promising Bi@BiOCl Hybrid Photocatalysts
	Yan, Yuxiang 1; Yang, Hua 1; Yi, Zao 2; Xian, Tao 3
刊名	CATALYSTS
	2019-10-01
卷号	9 期号:10
关键词	BiOCl nanoplates Bi nanoparticles NaBH4 reduction Bi@BiOCl hybrids photodegradation performance
DOI	10.3390/catal9100795
英文摘要	In this work, we have synthesized BiOCl nanoplates (diameter 140-220 nm, thickness 60-70 nm) via a co-precipitation method, and then created Bi nanoparticles (diameter 35-50 nm) on the surface of BiOCl nanoplates via a NaBH4 reduction method. By varying the NaBH4 concentration and reaction time, the evolution of Bi nanoparticles was systematically investigated. It is demonstrated that with increasing the NaBH4 concentration (at a fixing reaction time of 30 min), BiOCl crystals are gradually reduced into Bi nanoparticles, and pure Bi nanoparticles are formed at 120 mM NaBH4 solution treatment. At low-concentration NaBH4 solutions (e.g., 10 and 30 mM), with increasing the reaction time, BiOCl crystals are partially reduced into Bi nanoparticles, and then the Bi nanoparticles return to form BiOCl crystals. At high-concentration NaBH4 solutions (e.g., 120 mM), BiOCl crystals are reduced to Bi nanoparticles completely with a short reaction time, and further prolong the treatment time leads to the transformation of the Bi nanoparticles into a two-phase mixture of BiOCl and Bi2O3 nanowires. The photodegradation performances of the samples were investigated by choosing rhodamine B (RhB) as the model pollutant and using simulated sunlight as the light source. It is demonstrated that an enhanced photodegradation performance can be achieved for the created Bi@BiOCl hybrid composites with appropriate NaBH4 treatment. The underlying photocatalytic mechanism was systematically investigated and discussed.
WOS研究方向	Chemistry
语种	英语
出版者	MDPI
WOS记录号	WOS:000498266100011
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155321]
专题	理学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 2.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China; 3.Qinghai Normal Univ, Coll Phys & Elect Informat Engn, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Yan, Yuxiang,Yang, Hua,Yi, Zao,et al. NaBH4-Reduction Induced Evolution of Bi Nanoparticles from BiOCl Nanoplates and Construction of Promising Bi@BiOCl Hybrid Photocatalysts[J]. CATALYSTS,2019,9(10).
APA	Yan, Yuxiang,Yang, Hua,Yi, Zao,&Xian, Tao.(2019).NaBH4-Reduction Induced Evolution of Bi Nanoparticles from BiOCl Nanoplates and Construction of Promising Bi@BiOCl Hybrid Photocatalysts.CATALYSTS,9(10).
MLA	Yan, Yuxiang,et al."NaBH4-Reduction Induced Evolution of Bi Nanoparticles from BiOCl Nanoplates and Construction of Promising Bi@BiOCl Hybrid Photocatalysts".CATALYSTS 9.10(2019).