纳米YMn2O5半导体可见光催化剂

doi:10.3724/SP.J.1077.2011.01164

无机材料学报 ›› 2011, Vol. 26 ›› Issue (11): 1164-1168.DOI: 10.3724/SP.J.1077.2011.01164

纳米YMn₂O₅半导体可见光催化剂

王仕发^1,2, 杨华^1,2, 县涛^1,2, 魏智强^1,2, 马金元², 冯旺军²

(兰州理工大学 1. 甘肃省有色金属新材料省部共建国家重点实验室; 2. 理学院, 兰州 730050)

收稿日期:2010-11-29 修回日期:2011-01-07 出版日期:2011-11-20 网络出版日期:2011-11-11
作者简介:王仕发(1984-), 男, 硕士研究生. E-mail: wangshifa2006@yeah.net
基金资助:
国家自然科学基金(50962009); 教育部重点项目(209130); 甘肃省自然科学基金(1010RJZA041); 兰州理工大学优秀青年基金(Q200902)

Nano YMn2O5 Visible-light-driven Semiconductor Photocatalyst

WANG Shi-Fa^1,2, YANG Hua^1,2, XIAN Tao^1,2, WEI Zhi-Qiang^1,2, MA Jin-Yuan², FENG Wang-Jun²

(1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2. School of Science, Lanzhou University of Technology, Lanzhou 730050, China)

Received:2010-11-29 Revised:2011-01-07 Published:2011-11-20 Online:2011-11-11
Supported by:
National Natural Science Foundation of China (50962009); Key Project of the Chinese Ministry of Education (209130); Natural Science Foundation of Gansu Province (1010RJZA041); The Excellent Young Scholars Foundation of Lanzhou University of Technology (Q200902)

摘要/Abstract

摘要： 采用改进的聚丙烯酰胺凝胶法合成了YMn₂O₅纳米颗粒. XRD分析结果表明, 合成的纳米颗粒主要为正交YMn₂O₅相, 兼有少许的六方YMn₂O₅相, 无其它杂质相存在. SEM观察显示, 制得的YMn₂O₅纳米颗粒粒度均匀、形貌规整、呈类球形, 平均颗粒尺寸约为45nm. 利用紫外?可见光漫反射光谱研究了YMn₂O₅纳米颗粒的光吸收特性及带隙, 获得的光学带隙值为1.21eV. 以一种典型的偶氮染料甲基红为目标降解物, 研究了YMn₂O₅纳米颗粒的光催化活性. 结果表明, 在紫外光和可见光辐照下纳米颗粒均表现出了良好的光催化活性. 实验确定了光催化降解率的最佳条件: 甲基红的初始浓度为~15mg/L, 催化剂的加载量为~1. 2g/L.

关键词: YMn₂O₅, 纳米颗粒, 光催化活性

Abstract: YMn₂O₅ nanoparticles were synthesized by a modified polyacrylamide Gel technique. X-ray diffraction (XRD) analysis indicated that the as-synthesized nanoparticles crystallized mostly into orthorhombic YMn₂O₅ phase and less into hexagonal YMn₂O₅ phase without the presence of any other impurities. Scanning electron microscope (SEM) observation showed that the prepared YMn₂O₅ nanoparticles were regularly spherical in shape and highly uniform in size with a diameter of about 45nm. Ultraviolet-visible diffuse reflectance spectroscopy was used to investigate the light-absorbing properties and bandgap of YMn₂O₅ nanoparticles, and the value of the optical bandgap energy was obtained to be 1.21eV. The photocatalytic activity of YMn₂O₅ nanoparticles was investigated by the degradation of Methyl red (MR), a typical azo dye. The experimental results revealed that the product exhibited a pronounced photocatalytic activity for the MR decomposition under ultraviolet and visible light irradiation. The optimum conditions for the photocatalytic degradation were determined to be as follows, initial concentration of MR, 15mg/L, catalyst dosage, 1.2g/L.

Key words: YMn₂O₅, nanoparticles, photocatalytic activity

中图分类号:

O469

王仕发, 杨华, 县涛, 魏智强, 马金元, 冯旺军. 纳米YMn₂O₅半导体可见光催化剂[J]. 无机材料学报, 2011, 26(11): 1164-1168.

WANG Shi-Fa, YANG Hua, XIAN Tao, WEI Zhi-Qiang, MA Jin-Yuan, FENG Wang-Jun. Nano YMn2O5 Visible-light-driven Semiconductor Photocatalyst[J]. Journal of Inorganic Materials, 2011, 26(11): 1164-1168.

参考文献

[1] Mills A, Davies R H, Worsley D. Water purification by semiconductor photocatalysis. Chem. Soc. Rev. , 1993, 22(6): 417-425.

[2] Hoffmann M R, Martin S T, Choi W, et al. Environmental applications of semiconductor photocatalysis. Chem. Rev., 1995, 95(1): 69-96.

[3] 胡学斌, 徐璇, 吉芳英, 等(HU Xue-Bing, et al). 疏水性光催化剂的制备及其催化动力学. 无机材料学报(Journal of Inorganic Materials), 2009, 24(6): 1115-1120.

[4] 李辉, 王金淑, 李洪义, 等(LI Hui, et al). 氮硫掺杂介孔TiO2薄膜结构及其光催化性能. 无机材料学报(Journal of Inorganic Materials) , 2009 , 24(5): 909-914.

[5] 田宝柱, 李春忠, 顾锋, 等(TIAN Bao-Zhu, et al). 喷雾燃烧热分解制备Cr掺杂TiO2纳米粒子的可见光催化性能. 无机材料学报(Journal of Inorganic Materials), 2009, 24(4): 661-665.

[6] Shan Z C, Xia Y J, Yang Y X, et al. Preparation and photocatalytic activity of novel efficient photocatalyst Sr2Bi2O5. Mater. Lett., 2009, 63(1): 75-77.

[7] Zhang G Q, Chang N, Han D Q, et al. The enhanced visible light photocatalytic activity of nanosheet-like Bi2WO6 obtained by acid treatment for the degradation of rhodamine B. Mater. Lett., 2010, 64(19): 2135-2137.

[8] 戈磊, 张宪华(GE Lei, et al). 微乳液法合成新型可见光催化剂BiVO4及光催化性能研究. 无机材料学报(Journal of Inorganic Materials), 2009, 24(3): 453-456.

[9] Gao F, Chen X, Yin K, et al. Visible-light photocatalytic properties of weak magnetic BiFeO3 nanoparticles. Adv. Mater., 2007, 19(19): 2889-2892.

[10] Zhang M, Yang H, Xian T, et al. Polyacrylamide Gel synthesis and photocatalytic performance of Bi2Fe4O9 nanoparticles. J. Alloys Compd. , 2010, 509(3): 809-812.

[11] Inomata A, Kohn K. Pyroelectric effect and possible ferroelectric transition of helimagnetic GdMn2O5, TbMn2O5 and YMn2O5. J. Phys.: Condens. Matter, 1996, 8(15): 2673-2678.

[12] Kobayashi S, Osawa T, Kimura H, et al. Reinvestigation of simultaneous magnetic and ferroelectric phase transitions in YMn2O5. J. Phys. Soc. Jpn. , 2004 , 73(6): 1593-1596.

[13] Noda Y, Kimura H, Fukunaga M, et al. Magnetic and ferroelectric properties of multiferroic RMn2O5. J. Phys.: Condens. Matter, 2008, 20(43): 434206-1-3.

[14] 县涛, 杨华, 沈希, 等(XIAN Tao, et al). 聚丙烯酰胺凝胶法合成BiFeO3纳米颗粒. 无机材料学报(Journal of Inorganic Materials), 2010, 25(3): 251-254.

[15] 王仕发, 杨华, 县涛, 等(WANG Shi-Fa, et al). YMnO3纳米颗粒的制备与表征. 硅酸盐学报(Journal of the Chinese Ceramic Society), 2010, 38(12): 2303-2307.

[16] Ma C, Yan J Q, Dennis K W, et al. Effect of oxygen content on the magnetic properties of multiferroic YMn2O5+δ. J. Phys.: Condens. Matter, 2009, 21(34): 346002-1-5.

[17] Lin J G, Han T C, Chen C H. Structure-dependent magnetization in helimagnetic YMn2O5. IEEE Trans. Magn., 2005, 41(10): 3440-3442.

[18] Kubelka P, Munk F. Ein beitrag zur optik der farbanstriche. Z. Tech. Phys., 1931, 12: 593-601.

[19] Tauc J, Grigorovici R, Vancu A. Optical properties and electronic structure of amorphous germanium. Phys. Stat. Sol., 1966, 15(2): 627-637.

[20] Konstantinou I K, Albanis T A. TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations. Appl. Cata. B: Environ., 2004, 49(1): 1-14.

纳米YMn₂O₅半导体可见光催化剂

Nano YMn2O5 Visible-light-driven Semiconductor Photocatalyst

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