Preparation of Fe3O4/TiO2 magnetic mesoporous composites for photocatalytic degradation of organic pollutants

被引：18

作者：

Zhang, Hongfeng ^{[1
]}

He, Xiu ^{[1
]}

Zhao, Weiwei ^{[2
]}

Peng, Yu ^{[1
]}

Sun, Donglan ^{[2
]}

Li, Hao ^{[1
]}

Wang, Xiaocong ^{[1
]}

机构：

[1] Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin 300457, Peoples R China

[2] Tianjin Univ Sci & Technol, Coll Sci, Tianjin 300457, Peoples R China

来源：

WATER SCIENCE AND TECHNOLOGY | 2017年 / 75卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Fe3O4/TiO2; magnetic mesoporous composites; organic pollutants; photocatalytic degradation; TANNERY WASTE-WATER; DYE ADSORPTION; OXIDATION; KINETICS; TIO2;

D O I：

10.2166/wst.2017.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Fe3O4/TiO2 magnetic mesoporous composites were synthesized through a sol-gel method with tetran-butyl titanate as precursor and surfactant P123 as template. The as-prepared Fe3O4/TiO2 composites were characterized by X-ray diffraction, diffuse reflectance spectroscopy, nitrogen adsorption-desorption isotherm and pore size distribution. The as-synthesized products were applied as photocatalysis for the degradation of Acid Black ATT and tannery wastewater under UV lamp irradiation. Fe3O4/TiO2-8 composites containing Fe3O4 of 8 wt% were selected as model catalysts. The optimal catalyst dosage was 3 g/L in this photocalytic system. The magnetic Fe3O4/TiO2 composites possessed good photocatalytic stability and durability. This approach may provide a platform to prepare a magnetic composite to optimize the catalytic ability.

引用

页码：1523 / 1528

页数：6

共 24 条

[1]

[Anonymous], 1997, Standard methods for the examination of water and wastewater, V23rd

[2]

[Anonymous], 1989, ISO 6060

[3] Synthesis and investigating the magnetic properties of magnetite nanocrystallites for drug delivery [J].

Ansar, Muhammad Zaka ;

Atiq, Shahid ;

Riaz, Saira ;

Naseem, Shahzad ;

Ramay, Shahid M. ;

Mahmood, Asif .

MODERN PHYSICS LETTERS B, 2015, 29 (22)

[4] Template-assisted synthesis of core-shell α-Fe2O3@TiO2 nanorods and their photocatalytic property [J].

Chen, Ming ;

Shen, Xiao ;

Wu, Qianhui ;

Li, Wei ;

Diao, Guowang .

JOURNAL OF MATERIALS SCIENCE, 2015, 50 (11) :4083-4094

[5] Toxic hazards of leather industry and technologies to combat threat: a review [J].

Dixit, Sumita ;

Yadav, Ashish ;

Dwivedi, Premendra D. ;

Das, Mukul .

JOURNAL OF CLEANER PRODUCTION, 2015, 87 :39-49

[6] Treatment of highly concentrated tannery wastewater using electrocoagulation: Influence of the quality of aluminium used for the electrode [J].

Elabbas, S. ;

Ouazzani, N. ;

Mandi, L. ;

Berrekhis, F. ;

Perdicakis, M. ;

Pontvianne, S. ;

Pons, M-N. ;

Lapicque, F. ;

Leclerc, J-P .

JOURNAL OF HAZARDOUS MATERIALS, 2016, 319 :69-77

[7] Reactive dye adsorption onto a novel mesoporous carbon [J].

Galan, J. ;

Rodriguez, A. ;

Gomez, J. M. ;

Allen, S. J. ;

Walker, G. M. .

CHEMICAL ENGINEERING JOURNAL, 2013, 219 :62-68

[8] Biodegradation of tannery wastewater using sequencing batch reactor - Respirometric assessment [J].

Ganesh, R. ;

Balaji, G. ;

Ramanujam, R. A. .

BIORESOURCE TECHNOLOGY, 2006, 97 (15) :1815-1821

[9] A review of imperative technologies for wastewater treatment I: oxidation technologies at ambient conditions [J].

Gogate, PR ;

Pandit, AB .

ADVANCES IN ENVIRONMENTAL RESEARCH, 2004, 8 (3-4) :501-551

[10] Dye adsorption onto mesoporous materials: pH influence, kinetics and equilibrium in buffered and saline media [J].

Gomez, J. M. ;

Galan, J. ;

Rodriguez, A. ;

Walker, G. M. .

JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2014, 146 :355-361

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