[1]张苏宁,黄倩倩,蔡称心,等.不同形貌α-Bi2O3微晶的制备及其在可见光下的光催化性能[J].南京师大学报(自然科学版),2013,36(02):52-55.
　Zhang Suning,Huang Qianqian,Cai Chenxin,et al.Preparation of α-Bi2O3 Microcrystalline with Diverse Morphologies and Photocatalytic Performance Under Visible Light[J].Journal of Nanjing Normal University(Natural Science Edition),2013,36(02):52-55.
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不同形貌α-Bi2O3微晶的制备及其在可见光下的光催化性能()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第36卷
期数:
2013年02期
页码:
52-55
栏目:
化学
出版日期:
2013-06-30

文章信息/Info

Title:
Preparation of α-Bi2O3 Microcrystalline with Diverse Morphologies and Photocatalytic Performance Under Visible Light
文章编号:
1001-4616(2013)02-0052-04
作者:
张苏宁; 黄倩倩; 蔡称心; 陆天虹; 周 泊
江苏省新型动力电池重点实验室,江苏省生物功能材料重点实验室,南京师范大学电化学实验室, 南京师范大学化学与材料科学学院,江苏 南京 210023
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
关键词:
α-Bi2O3微晶; 制备; 可见光催化降解; 罗丹明B
Keywords:
α-Bi2O3 microcrystalline; preparation; visible-light photocatalytic degradation; Rhodamine B
分类号:
O643
文献标志码:
A
摘要:
以NaOH与Bi(NO3)3·5H2O为原料,在乙醇溶剂中分别采用恒温搅拌、超声和溶剂热法合成了不同形貌和尺寸的α-Bi2O3微晶.利用X射线衍射(XRD)、扫描电镜(SEM)、紫外-可见漫反射光谱(DRS)对α-Bi2O3微晶进行了表征.并以罗丹明B作为模型污染物,研究了不同方法制备的α-Bi2O3微晶在模拟太阳光照射下的光催化性能.结果表明,不同制备方法对α-Bi2O3微晶的形貌尺寸、光吸收性质及光催化性能均有影响.其中溶剂热法制备的α-Bi2O3微晶带隙最窄,可以吸收更大光谱范围内的可见光,加上它的粒子尺寸较小,因此它在模拟太阳光下光催化降解罗丹明B的光催化活性也最高.
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.

参考文献/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.

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备注/Memo

备注/Memo:
收稿日期:2012-11-21.
基金项目:国家自然科学基金(21175068)、江苏高校优势学科建设工程资助项目.
通讯联系人:周泊,博士,副教授,研究方向:功能材料制备和性质研究.E-mail:zhoubo@njnu.edu.cn
更新日期/Last Update: 2013-06-30