کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6454600 1418817 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic oxidation of benzene over Mn modified TiO2/ZSM-5 under vacuum UV irradiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Catalytic oxidation of benzene over Mn modified TiO2/ZSM-5 under vacuum UV irradiation
چکیده انگلیسی


- A multi-functional photocatalyst was developed by a modified sol-gel method.
- 0.1%Mn/TiO2/ZSM-5 well cooperated with VUV for benzene degradation.
- It greatly enhanced benzene degradation via ozone-assisted catalytic oxidation.
- Benzene removal efficiency was stably kept at 100% under VUV irradiation.

Vacuum ultraviolet (VUV) irradiation was used to improve photocatalytic degradation of gaseous benzene. A multi-functional photocatalyst of 0.1%Mn/TiO2/ZSM-5 was developed by a modified sol-gel method for the elimination and utilization of O3, the by-product generated from VUV irradiation. O3 was completely removed and efficiently used to enhance catalytic oxidation of benzene via ozone-assisted catalytic oxidation (OZCO). Under VUV irradiation, benzene removal efficiency was stably kept at 100% over 0.1%Mn/TiO2/ZSM-5, however, it was only about 50% and much O3 was residual over commercial TiO2 (P25). 0.1%Mn/TiO2/ZSM-5 perfectly synergized with VUV irradiation. It provides more efficient pathways besides photocatalytic oxidation, for benzene degradation. The possible mechanism of benzene degradation over 0.1%Mn/TiO2/ZSM-5 with VUV irradiation was proposed. This is the first report of an efficient photocatalyst with superior performance for O3 elimination and utilization.

Mn/TiO2/ZSM-5 well cooperate with VUV to achieve efficient degradation of benzene130

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 203, April 2017, Pages 870-878
نویسندگان
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