ZnS-doped TiO2 photocatalysts for 4-chlorophenol photodegradation in water

被引：0
|
作者：
Velasquez-Torres, M. E. [1 ]
Tzompantzi, F. [2 ]
Castillo-Rodriguez, J. C. [2 ]
Sierra-Uribe, H. [2 ]
Santolalla-Vargas, C. E. [3 ]
Cardoso-Martinez, J. [4 ]
机构：
[1] Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Proc & Hidraul Posgrad Energia & Medio, Av San Rafael Atlixco 189, Ciudad De Mexico 09340, Mexico
[2] Univ Autonoma Metropolitana Iztapalapa, Dept Quim, Area Catalisis, Av San Rafael Atlixco 189, Ciudad De Mexico 09340, Mexico
[3] Inst Politecn Nacl, Ctr Interdisciplinario Invest & Estudios Medio Am, Dept Biociencias & Ingn, Ciudad De Mexico 07340, Mexico
[4] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Area Polimeros, Av San Rafael Atlixco 189, Ciudad De Mexico 09340, Mexico
来源：
MRS ADVANCES | 2022年 / 7卷 / 35期
关键词：
NANOCOMPOSITES; DECOLORIZATION; OXIDATION;
D O I：
10.1557/s43580-022-00439-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The TiO2-X% ZnS photocatalysts, where X represents the molar percentage of ZnS (3%, 5%, 10%, and 15%), were synthesized using the one-step sol-gel method. In a Batch-type reactor, under the irradiation of a mercury lamp (lambda = 254 nm, Pen-Ray), degradations of 55 ppm 4-chlorophenol were obtained at 400 min with the synthesized photocatalysts: 90% (TiO2), 60% (3% ZnS), 66% (5% ZnS), 74% (10% ZnS), and 58% (15% ZnS). ZnS addition in the photocatalysts inhibits a good performance, being the support, TiO2, the most photoactive material when irradiating in the ultraviolet region. TiO2 showed suppression of hole electron pair recombination and high electron storage, outstanding separation, and transfer.
引用
收藏
页码：1189 / 1192
页数：4
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