|Table of Contents|

Preparation of α-Bi2O3 Microcrystalline with Diverse Morphologies and Photocatalytic Performance Under Visible Light(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2013年02期
Page:
52-55
Research Field:
化学
Publishing date:

Info

Title:
Preparation of α-Bi2O3 Microcrystalline with Diverse Morphologies and Photocatalytic Performance Under Visible Light
Author(s):
Zhang Suning; Huang Qianqian; Cai Chenxin; Lu Tianhong; Zhou Bo
Jiangsu Key Laboratory of New Power Batteries,Jiangsu Key Laboratory of Biofunctional Materials,Laboratory of Electrochemistry, School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210023,China
Keywords:
α-Bi2O3 microcrystalline; preparation; visible-light photocatalytic degradation; Rhodamine B
PACS:
O643
DOI:
-
Abstract:
Using NaOH and Bi(NO3)3·5H2O as the precursors,α-Bi2O3 microcrystallines were prepared in the ethanol solvent via sonochemical,thermostatic stirring and solvothermal methods respectively.X-ray diffraction(XRD),Scanning electron microscopy(SEM)and diffuse reflectance spectroscopy(DRS)were used to characterize the samples.The photocatalytic performance of α-Bi2O3 was evaluated using Rhodamine B(RhB)as a model pollutant under simulated sunlight illumination.The result showed that the preparation method could affect the morphology,size,absorption properties and catalytic performance of α-Bi2O3 microcrystalline.α-Bi2O3 microcrystalline prepared via the solvothermal method has low band gap energy and high absorbance in wider visible light region,in addition to the small particle size,and therefore showed the highest photocatalytic activity for photocatalytic degradation of RhB.

References:

[1] Xu Y,Schoonen M A A.The absolute energy position of conduction and valence bands of selected semiconducting minerals[J].Am Mineral,2000,85:543-556.
[2]Zhang L S,Wang W Z,Yang J,et al.Sonochemical synthesis of nanocrystallite Bi2O3 as a visible-light-driven photocatalyst[J].Appl Catal,A:General,2006,308:105-110.
[3]He W D,Qin W,Wu X H,et al.The photocatalytic properties of bismuth oxide films prepared through the sol-gel method[J].Thin Solid Films,2007,515:5 362-5 365.
[4]Jha R K,Pasricha R,Ravi V.Synthesis of bismuth oxide nanoparticles using bismuth nitrate and urea[J].Ceram Int,2005,31(3):495-497.
[5]何伟明,甄强,潘庆谊,等.反向滴定法制备超细氧化铋粉体的研究[J].功能材料,2003,6(34):702-703,706.
[6]王云燕,秦毅红,周伟,等.共沸蒸馏法制备Bi2O3微细粉的研究[J].涂料工业,2001(1):13-17.
[7]陈代荣,谢经雷,李博,等.Bi(OR)3作前驱体合成Bi2O3微粉(R:CH2CH2OCH3,CMe2 Et)[J].山东大学学报:自然科学版,1997,32(l):88-93.
[8]韩俊鹤,欧慧灵,廖鹏,等.表面修饰的Bi2O3纳米微粒的光学特性[J].河南大学学报:自然科学版,2001,31(3):14-16.
[9]杨群保,李永祥,殷庆瑞,等.Bi2O3晶须的水热合成研究[J].无机材料学报,2002,17(5):979-984.
[10]Yu Jimmy C,Xu A W,Zhang L Z,et al.Synthesis andcharacterization of porous magnesium[J].J Phys Chem B,2004,108(1):64-70.
[11]李清文,李娟,夏熙,等.纳米Bi2O3微粒的固相合成及其电化学性能的研究[J].化学学报,1999,29(5):491-495.
[12]Huang Q Q,Zhang S N,Cai C X,et al.β- and α-Bi2O3 nanoparticles synthesized via microwave-assisted method and their photocatalytic activity towards the degradation of Rhodamine B[J].Materials Letters,2011,65:988-990.
[13]邹文,郝维昌,信心,等.不同晶型三氧化二铋可见光光催化降解罗丹明的研究[J].无机化学学报,2009,25(11):1971-1976.

Memo

Memo:
-
Last Update: 2013-06-30