Preparation and photocatalytic activity of Fe3O4@TiO2-expanded graphite

doi:10.11894/1005-829x.2014.34(3).068

INDUSTRIAL WATER TREATMENT ›› 2014, Vol. 34 ›› Issue (3): 68-70. doi: 10.11894/1005-829x.2014.34(3).068

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Preparation and photocatalytic activity of Fe₃O₄@TiO₂-expanded graphite

Yu Xiujuan^1,2, Li Xianwei¹, Wan Jiafeng^1,2, Cheng Xiuwen¹

1. Department of Environmental Science and Engineering, Heilongjiang University, Harbin 150080, China;
2. Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, Ordinary College of Heilongjiang Province, Harbin 150080, China

Received:2013-11-18 Online:2014-03-20 Published:2014-03-21

Fe₃O₄@TiO₂-膨胀石墨的制备及其光催化性能研究

于秀娟^1,2, 李显伟¹, 万家峰^1,2, 程修文¹

1. 黑龙江大学环境科学与工程系, 黑龙江哈尔滨 150080;
2. 黑龙江省普通高等学校高效转化的化工过程与技术重点实验室, 黑龙江哈尔滨 150080

作者简介:于秀娟（1965-），教授，博士。电话：18345038403，E-mail：hljyuxiujuan@126.com。

Abstract

Abstract:

The core-shell particle Fe₃O₄@TiO₂-expanded graphite has successfully been prepared. The adsorption and photo-catalytic capacities of it are investigated. The results show that the Fe₃O₄ particles are coated with anatase titanium dioxide effectively and deposited equally on the surface and gully of the prepared composite material,showing super paramagnetic characteristics. The saturation and magnetization strength of the modified core-shell particle Fe₃O₄@TiO₂-expanded graphite is 28.3 emu/g,the adsorption rate for phenol can reach 20.1%,and the degradation rate of phenol 72.1%.

Key words: Fe₃O₄, TiO₂, expanded graphite, photocatalytic activity

摘要：

制备了核壳式Fe₃O₄@TiO₂-膨胀石墨光催化剂，考察了其吸附及光催化性能。实验结果表明：锐钛矿型TiO₂对Fe₃O₄进行了有效包覆，并均匀地沉积在膨胀石墨的表面及沟壑中，制备的样品具有超顺磁性。核壳式改性Fe₃O₄@TiO₂-膨胀石墨的比饱和磁化强度为28.3 emu/g，对苯酚的吸附率可达20.1%，降解率为72.1%。

关键词: 四氧化三铁, 二氧化钛, 膨胀石墨, 光催化活性

CLC Number:

X703.5

Yu Xiujuan, Li Xianwei, Wan Jiafeng, Cheng Xiuwen. Preparation and photocatalytic activity of Fe₃O₄@TiO₂-expanded graphite[J]. INDUSTRIAL WATER TREATMENT, 2014, 34(3): 68-70.

于秀娟, 李显伟, 万家峰, 程修文. Fe₃O₄@TiO₂-膨胀石墨的制备及其光催化性能研究[J]. 工业水处理, 2014, 34(3): 68-70.

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https://www.iwt.cn/EN/Y2014/V34/I3/68

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Preparation and photocatalytic activity of Fe₃O₄@TiO₂-expanded graphite

Fe₃O₄@TiO₂-膨胀石墨的制备及其光催化性能研究

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