Preparation and Properties of a Magnetic-nanometer TiO2/Fe3O4 Composite Photocatalyst

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (20): 2093-2097. Previous Articles Next Articles

磁性纳米TiO₂/Fe₃O₄光催化复合材料的制备及性能

陈金媛^1,2, 彭图治¹

1. 浙江大学化学系, 西溪校区, 杭州, 310028;
2. 浙江工业大学职业技术学院, 杭州, 310014

投稿日期:2004-03-11 修回日期:2004-06-16 发布日期:2014-02-17
通讯作者: 彭图治,E-mail:tzp@zju.edu.cn E-mail:tzp@zju.edu.cn
基金资助:
国家自然科学基金(No.20275034)和浙江省分析测试基金(No.03051)资助项目.

Preparation and Properties of a Magnetic-nanometer TiO₂/Fe₃O₄ Composite Photocatalyst

CHEN Jin-Yuan^1,2, PENG¹

1. Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou 310028;
2. School of Vocational and Technique, Zhejiang University of Technology, Hangzhou 310014

Received:2004-03-11 Revised:2004-06-16 Published:2014-02-17

Abstract

A novel magnetic-nanometer titanium dioxide/ferriferous oxide (TiO₂/Fe₃O₄) composite photocatalyst was prepared. The photoactive TiO₂ was deposited onto the surface of magnetic Fe₃O₄ cores using a sol-gel coating technique. The morphological structure of the photocatalyst particles was characterized by XRD and TEM analysis. The nanometer-TiO₂ disperses uniformly and enwraps the Fe₃O₄ magnetic cores to form composite particles with a size of 30～50 nm. The photocatalyst shows properties of absorptive wavelengh red-shift and absorbance increase. The new composite photocatalyst is a highly effective decoloring agent in wastewater with a dyestuff of active bright red, which can be recovered and reused.

Key words: nanometer-TiO₂, magnetic Fe₃O₄, composite material, photo-catalysis

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CHEN Jin-Yuan, PENG, Tu-Zhi. Preparation and Properties of a Magnetic-nanometer TiO₂/Fe₃O₄ Composite Photocatalyst[J]. Acta Chimica Sinica, 2004, 62(20): 2093-2097.

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磁性纳米TiO₂/Fe₃O₄光催化复合材料的制备及性能

Preparation and Properties of a Magnetic-nanometer TiO₂/Fe₃O₄ Composite Photocatalyst

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磁性纳米TiO2/Fe3O4光催化复合材料的制备及性能