rGO doped S0.05N0.1/TiO2 accelerated visible light driven photocatalytic degradation of dimethyl sulfide and dimethyl disulfide

Birgitta Narindri Rara Winayu, Sy Ting Chen, Wen Chien Chang, Hsin Chu

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

In this study, modification of TiO2 was carried out by doping of non-metal elements (S and N) and various contents of reduced graphene oxide (rGO) for photocatalytic degradation of dimethyl sulfide (DMS) and dimethyl disulfide (DMDS). Among the tested photocatalyst, 0.1wt%rGO/S0.05N0.1TiO2 had the best photocatalytic degradation efficiencies for both DMS and DMDS. Reduction of band gap and increment in surface area might be related to the improvement in photocatalytic activity. Examination was followed by the study of various parameters influence, reaction kinetics, and proposed reaction mechanism using 0.1wt%rGO/S0.05N0.1TiO2. Dry and 1% relative humidity in gases promoted photocatalytic activity yet higher water vapor contents led to adsorption competition and reduced DMS and DMDS conversion. Langmuir-Hinshelwood kinetics model 4 presented the best suited result for photocatalytic degradation of DMS and DMDS using 0.1wt%rGO/S0.05N0.1TiO2. Furthermore, proposed reaction mechanism for each type of pollutant was assembled from byproducts analysis during the reaction.

原文English
文章編號119113
期刊Applied Catalysis A: General
655
DOIs
出版狀態Published - 2023 4月 5

All Science Journal Classification (ASJC) codes

  • 催化
  • 製程化學與技術

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