超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能

井强山; 方林霞; 王春

环境工程学报

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井强山, 方林霞, 王春. 超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能[J]. 环境工程学报, 2012, 6(4): 1241-1244.

引用本文:

井强山, 方林霞, 王春. 超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能[J]. 环境工程学报, 2012, 6(4): 1241-1244.

Jing Qiangshan, Fang Linxia, Wang Chun. Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance[J]. Chinese Journal of Environmental Engineering, 2012, 6(4): 1241-1244.

Citation:

Jing Qiangshan, Fang Linxia, Wang Chun. Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance[J]. Chinese Journal of Environmental Engineering, 2012, 6(4): 1241-1244.

超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能

1.
信阳师范学院非金属材料研究所，信阳 464000； 2.信阳师范学院河南省珍珠岩制品工程技术研究中心，信阳 464000
基金项目:
河南省科技攻关重点项目(082102340005)

河南省教育厅自然科学研究项目(2010A150019)
中图分类号: X781.1

Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance

1.
Institute of Non-metal Materials， Xinyang Normal University， Xinyang 464000， China； 2.Engineering Technology Research Center of Expanded Product， Xinyang Normal University， Xinyang 464000， China
Fund Project:

摘要: 以膨胀珍珠岩(expanded perlite， EP)为载体，以钛酸正丁酯和硝酸镧为前驱体，采用浸渍法制备出掺杂镧的漂浮型La-TiO2/EP光催化剂，采用X-射线粉末衍射研究了催化剂的形态结构。以正辛烷为模拟水面烃类污染物，通过超声波辅助对此催化剂的吸附与光催化性能进行了研究。结果表明：以20～40目的膨胀珍珠岩为载体制备的5%La-TiO2/EP，经500℃焙烧2 h后对辛烷的去除效果最好。超声波可促进辛烷在催化剂表面的吸附与迁移，超声辅助下辛烷去除率可提高11.08%。
- 膨胀珍珠岩 /
- 二氧化钛 /
- 镧 /
- 光催化 /
- 超声波 /
- 辛烷
Abstract: Floating La-TiO2/EP photocatalyst was prepared by impregnation method with expanded perlite (EP) as support and tetrabutyl titanate as precursor. The crystalphase and morphology of samples were characterized by X-ray diffraction (XRD). Adsorption and photocatalytic performance of the La-TiO2/EP catalysts were evaluated by degradation of octane on water with the ultrasonic wave assistance. The experimental results indicate that the 5%La-TiO2/EP catalyst using the expanded perlite of 20～40 mesh as support and calcinated at 500℃ for 2 h has the best activity. The adsorption and migration of octane in catalyst surface is promoted by the ultrasonic wave， 11.08% of octane is additionally removed with the help of ultrasonic wave.
- expanded perlite /
- TiO2 /
- lanthanum /
- photocatalysis /
- ultrasonic /
- octane

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井强山, 方林霞, 王春. 超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能[J]. 环境工程学报, 2012, 6(4): 1241-1244.

引用本文:

井强山, 方林霞, 王春. 超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能[J]. 环境工程学报, 2012, 6(4): 1241-1244.

Jing Qiangshan, Fang Linxia, Wang Chun. Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance[J]. Chinese Journal of Environmental Engineering, 2012, 6(4): 1241-1244.

Citation:

超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能

1. 信阳师范学院非金属材料研究所，信阳 464000； 2.信阳师范学院河南省珍珠岩制品工程技术研究中心，信阳 464000

收稿日期: 2011-03-11

基金项目:

河南省科技攻关重点项目(082102340005)

河南省教育厅自然科学研究项目(2010A150019)

关键词:

摘要: 以膨胀珍珠岩(expanded perlite， EP)为载体，以钛酸正丁酯和硝酸镧为前驱体，采用浸渍法制备出掺杂镧的漂浮型La-TiO2/EP光催化剂，采用X-射线粉末衍射研究了催化剂的形态结构。以正辛烷为模拟水面烃类污染物，通过超声波辅助对此催化剂的吸附与光催化性能进行了研究。结果表明：以20～40目的膨胀珍珠岩为载体制备的5%La-TiO2/EP，经500℃焙烧2 h后对辛烷的去除效果最好。超声波可促进辛烷在催化剂表面的吸附与迁移，超声辅助下辛烷去除率可提高11.08%。

English Abstract

Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance

1. Institute of Non-metal Materials， Xinyang Normal University， Xinyang 464000， China； 2.Engineering Technology Research Center of Expanded Product， Xinyang Normal University， Xinyang 464000， China

Received Date: 2011-03-11

Fund Project:

Keywords:

Abstract: Floating La-TiO2/EP photocatalyst was prepared by impregnation method with expanded perlite (EP) as support and tetrabutyl titanate as precursor. The crystalphase and morphology of samples were characterized by X-ray diffraction (XRD). Adsorption and photocatalytic performance of the La-TiO2/EP catalysts were evaluated by degradation of octane on water with the ultrasonic wave assistance. The experimental results indicate that the 5%La-TiO2/EP catalyst using the expanded perlite of 20～40 mesh as support and calcinated at 500℃ for 2 h has the best activity. The adsorption and migration of octane in catalyst surface is promoted by the ultrasonic wave， 11.08% of octane is additionally removed with the help of ultrasonic wave.

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超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能

Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance

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超声辅助La-TiO2/膨胀珍珠岩的吸附与光催化性能

English Abstract

Adsorption and photocatalytic properties of La-TiO2/EP with ultrasonic wave assistance

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