PHOTOCATALYTIC ACTIVITY OF A SILVER DOPED TIO2 MODIFIED ZEOLITE IN THE DEGRADATION OF REACTIVE YELLOW 125 AZO DYE

被引：0
|
作者：
Colar, Liliana Andreea [1 ]
Ilinoiu, Elida Cristina [1 ]
Manea, Florica [1 ]
Pode, Rodica [1 ]
Lazau, Carmen [2 ]
机构：
[1] Politehn Univ Timisoara, Fac Ind Chem & Environm Engn, Timisoara 300006, Romania
[2] Natl Inst Res Dev Electrochem & Matter Timisoara, Dept Condensed Matter, Timisoara 300224, Romania
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2012年 / 11卷 / 01期
关键词：
photocatalysis; Reactive Yellow 125; silver doped TiO2 modified zeolite; UV irradiation; VIS irradiation; AQUEOUS-SOLUTION; ADSORPTION; REMOVAL; WATER; PHOTODEGRADATION; BLUE; DECOLORIZATION; PARAMETERS; ZNO;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The aim of this study was to investigate photocatalytic activity of a silver doped TiO2 modified zeolite (Z-TiO2-Ag) in the photocatalytic degradation of Reactive Yellow 125 (RY 125) azo dye. The operational conditions using photocatalyst dose of 1g . L-1 at pH 6 were established as optimal conditions for photocatalysis application in RY 125 dye solution degradation. The photocatalyst exhibited a good performance for discoloration at all studied concentrations (25, 50 and 100 mg. L-1). A good efficiency regarding the aromatic ring-opening process was achieved especially at low concentrations of the dye. However, an effective mineralization did not occur even at low concentrations of dye (25 mg. L-1). The results of photocatalyst activity under VIS irradiation revealed a practical utility of the silver doped TiO2 modified zeolite for the RY 125 dye degradation at low concentrations.
引用
收藏
页码：61 / 68
页数：8
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