Photocatalytic decoloration of three commercial dyes in aqueous phase and industrial effluents using TiO2 nanoparticles

被引：17

作者：

Soni, Hiral ^{[1
]}

Kumar, J. I. Nirmal ^{[1
]}

Patel, Khushal ^{[2
]}

Kumar, Rita N. ^{[3
]}

机构：

[1] Inst Sci & Technol Adv Studies & Res ISTAR, Dept Environm Sci & Technol, Vallabh Vidyanagar 388120, Gujarat, India

[2] Ashok & Rita Patel Inst Integrated Study & Res Bi, Dept Biosci, New Vallabh Vidyanagar 3888121, Gujarat, India

[3] NV Patel Coll Pure & Appl Sci, Dept Biosci & Environm Sci, Vallabh Vidyanagar 388120, Gujarat, India

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 14期

关键词：

Methylene Blue; Malachite Green; Rhodamine B; Industrial effluents; TiO2; adsorbent; Photocatalysis; DEGRADATION; ANATASE; RUTILE; TEMPERATURE; EQUILIBRIUM; PARAMETERS; TITANIA; REMOVAL; WATER; RED;

D O I：

10.1080/19443994.2015.1005147

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

TiO2 sol was synthesized under mild conditions (25 +/- 1 degrees C and ambient pressure) by hydrolysis of titanium isopropoxide in aqueous solution and subsequent reflux to enhance crystallization. The material was characterized by X-ray diffraction, transmission electron microscopy, and Fourier transform infrared. The synthesized sample presented a pure phase anatase with nanometric particle size. The photodegradation of reactive dyes (malachite green, methylene blue, and rhodamine B) and industrial effluents was elucidated in aqueous suspension containing titania nanoparticles under UV irradiation. Also, the effect of pH in nanoparticle synthesis and role of catalyst dose and dye concentration were evaluated. The experimental result showed that particles synthesized by sol-gel method are of 20-40nm anatase form with cuboidal structure and OH- as a major functional group. These particles showed efficiency to degrade dyes up to 98% and industry (paint and textile) effluents can be decolorized in the TiO2/UV system.

引用

页码：6355 / 6364

页数：10

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