ABO3钙钛矿型复合氧化物光催化活性与B离子d电子结构的关系

doi:10.7517/j.issn.1674-0475.2001.02.109

影像科学与光化学 ›› 2001, Vol. 19 ›› Issue (2): 109-115.DOI: 10.7517/j.issn.1674-0475.2001.02.109

ABO₃钙钛矿型复合氧化物光催化活性与B离子d电子结构的关系

桑丽霞, 傅希贤, 白树林, 杨秋华, 王俊珍, 曾淑兰

天津大学化学系, 天津300072

收稿日期:2000-09-11 修回日期:2000-12-01 出版日期:2001-05-20 发布日期:2001-05-20
通讯作者: 傅希贤(1943-), 女, 教授, 主要从事光催化材料的研究.
基金资助:
国家自然科学基金资助(5977019)

THE RELATION OF PHOTOCATALYTIC ACTIVITY OF PEROVSKTIE (ABO₃) TYPE OXIDE AND D-ELECTRON STRUCTURE OF ION B

SANG Li-xia, FU Xi-xian, BAI Shu-lin, YANG Qiu-hua, WANG Jun-zhen, ZENG Shu-lan

Department of Chemistry, Tianjin University, Tianjin 300072, P.R. China

Received:2000-09-11 Revised:2000-12-01 Online:2001-05-20 Published:2001-05-20

摘要/Abstract

摘要： 在ABO₃钙钛矿型复合氧化物中,B离子的d电子结构对B_3d-O_2p之间的电荷转移能ΔCT及B-O之间的结合能起着关键作用,是影响ABO₃复合氧化物光催化活性的一个重要因素.本文以研磨法和柠檬酸法合成了系列LaBO₃(B=Ti-Co),并结合光催化降解实验和光声光谱图分析得出:LaBO₃光催化活性随B离子3d电子数的递增而逐渐增加.

关键词: 钙钛矿型复合氧化物, 光催化活性, d电子结构, 电荷转移能ΔCT

Abstract: The d-electron structure of ion B in perovskite(ABO₃) type oxide has the key role on the binding energy of B-O and the charge-transfer energy(ΔCT) between O_2p and B_3d, so it has an important influence on the photocatalytic activity of ABO₃. In this paper, the species LaBO₃(B=Ti-Co) were prepared by the mixed oxide method and the citrate complex method. By analyzing the photocatalytic degradation experiment and their photo acoustic spectra, the results show that photocatalytic activity of LaBO₃ increases with the increasing of d-electron number of ion B.

Key words: perovskite type oxide, photocatalytic activity, d-electron structure, charge-transfer energy(ΔCT)

中图分类号:

O644

桑丽霞, 傅希贤, 白树林, 杨秋华, 王俊珍, 曾淑兰. ABO₃钙钛矿型复合氧化物光催化活性与B离子d电子结构的关系[J]. 影像科学与光化学, 2001, 19(2): 109-115.

SANG Li-xia, FU Xi-xian, BAI Shu-lin, YANG Qiu-hua, WANG Jun-zhen, ZENG Shu-lan. THE RELATION OF PHOTOCATALYTIC ACTIVITY OF PEROVSKTIE (ABO₃) TYPE OXIDE AND D-ELECTRON STRUCTURE OF ION B[J]. Imaging Science and Photochemistry, 2001, 19(2): 109-115.

参考文献

[1] Sarma D D, Shanthi N, Barman S R, et al. Band theory for ground-state properties and excitation spectra of perovskite LaMo3(M＝Mn, Fe, Co, Ni)[J]. Physical Review Letters, 1995, 175(6):1126-1129.
[2] Taka-hisa Arima, Yoshinori Torura. Optical study of electronic structure in perovskite-type[J]. Journal of the Physical Society of Japan, 1995,54(7):2488-2501.
[3] Wolfram T, Kralt E A, Morin F J. d-band surface states on transition-metal perovskite crystals Ⅰ. qualitative features and application to SrTiO3[J]. Physical Review B, 1973,7(4):1677-1694.
[4] 秦永宁,田辉平,张鎏,等.钙钛矿型化合物催化氧化性能与d电子构型关系的研究[J].化学学报,1993,51:319-324. Qin Yongning,Tian Huiping,Zhang Liu,et al. Study on the correlation of d-electron catalytic oxidation activity of LaMnO₃[J].ACTA CHIMICA SINICA,1993,51:319-324.
[5] Pari G, Mathbi S, Jaya, et al. Density-functional description of the electronic structure of LaMO₃(M＝Sc, Ti, Cr, Mn, Fe, Co, Ni)[J]. Physical Review B, 1995,51(23):16575-16581.
[6] Arima T, Tokura Y, Tottance J B. Variation of optical gaps in perovskite-type 3d transition-metal oxides[J]. Physical Review B, 1993,48(23):17006-17009.
[7] Sarma D D, Santra A K, Rao C N R. Electronic structures of pervoskite oxides of transition metals of the type LaMO₃(M=Ti-Ni) as revealed by MSX α investigations[J]. Journal of Solid State Chemistry, 1994,110:393-396.
[8] Takashi Shimizu. Effect of electronic structure and tolerance factor on Co oxidation activity of pervoskite oxides[J]. Chemistry Letters, 1980,1-4.
[9] Heinz Gerischer, Adam Heller. The roke of oxygen in photooxidation of organic molecules on semiconductor particles[J]. J.Phys. Chem., 1991,95:5261-5267.
[10] 杨频,高孝恢.性能-结构-化学键[M].北京:高等教育出版社,1987.408. Yang Pin,Gao Xiahui.Chemical Bonding and Structure-Property Relations[M].Beijing:Advanced Education Press, 1987.408.
[11] 林西平泽.新型催化材料[M].北京:石油工业出版社,1984.12. Burton J J, Garten R L. New Type Catalysis Material[M]. Ling Xiping(transl.). Beijing: Petroleum Industry Press, 1984.12.
[12] Thornton G, Orchard A F, Rao C N R. A study of LaCoO3 and related materials by X-ray photoelectron spectroscopy[J]. J. Phys. C: Solid State Phys., 1976,9:1991-1999.
[13] Goodenough J B. Progress in Solid State Chemistry[M]. Vol. 5. Oxford: Pergamon Press, 1991.145.
[14] Voorhoeve R J H, Burton J J, Garton R L, et al. Advanced Materials in Catalysts[M]. New York: Academic Press, 1977.129.

ABO₃钙钛矿型复合氧化物光催化活性与B离子d电子结构的关系

THE RELATION OF PHOTOCATALYTIC ACTIVITY OF PEROVSKTIE (ABO₃) TYPE OXIDE AND D-ELECTRON STRUCTURE OF ION B

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 10

编辑推荐

Metrics

本文评价

[1]	张鹏, 于彦龙, 匡元江, 姚江宏, 曹亚安. Si掺杂TiO₂催化剂的结构与可见光催化活性研究[J]. 影像科学与光化学, 2013, 31(4): 295-304.
[2]	费学宁, 刘星星, 李金蕊, 姜远光. 磁功能性TiO₂光催化剂的制备及特性[J]. 影像科学与光化学, 2013, 31(3): 229-237.
[3]	汪应灵, 谢友海, 袁建梅, 周庆祥, 刘国光. 掺硼纳米TiO₂的制备及光催化性能研究[J]. 影像科学与光化学, 2010, 28(4): 287-295.
[4]	汪应灵, 谢友海, 刘国光, 周建国, 周庆祥. 凝胶网格控制合成纳米ZnO及其光催化活性[J]. 影像科学与光化学, 2009, 27(3): 207-214.
[5]	孟庆华, 于昕, 朱亦仁. 纳米WO₃的制备工艺探讨与结构表征[J]. 影像科学与光化学, 2009, 27(1): 48-56.
[6]	姜洪泉, 王鹏, 陈红艳, 于凯. Pr³⁺掺杂的TiO₂纳米粉体的表面特性和光催化活性[J]. 影像科学与光化学, 2006, 24(4): 276-285.
[7]	田宝柱, 童天中, 陈锋, 张金龙. 明胶对纳米二氧化钛相变和光催化活性的影响[J]. 影像科学与光化学, 2006, 24(2): 93-101.
[8]	吴遵义, 杜玉扣, 华南平, 沈明, 杨平. Zn-TiO₂/AC复合催化剂的制备及其光催化活性[J]. 影像科学与光化学, 2004, 22(4): 266-271.
[9]	曹亚安, 陈咏梅, 管自生, 马颖, 吴志芸, 白玉白, 李铁津, 姚建年. TiO₂纳米粒子膜的表面态性质及其光催化活性的研究[J]. 影像科学与光化学, 1999, 17(2): 100-103.
[10]	陈士夫, 梁新, 赵梦月. 不同制备条件对TiO₂/beads光催化活性的影响[J]. 影像科学与光化学, 1999, 17(1): 25-31.