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Catalytic oxidation of VOCs over Mn/TiO2/activated carbon under 185 nm VUV irradiation.
Chemosphere. 2018 Oct; 208:550-558.C

Abstract

Volatile organic compounds (VOCs) are regarded as the major contributors to air pollution, and should be strictly regulated. Photocatalytic oxidation (PCO) is of great interest for the removal of VOCs owing to its strong oxidation capability. However, its application is greatly limited by catalytic deactivation. Vacuum Ultraviolet (VUV) irradiation provides a novel way to improve the photocatalytic activity while much O3 will be generated which may cause secondary pollution. In this study, a multi-functional catalyst of Mn/TiO2/activated carbon (AC) was developed to eliminate and utilize O3, as well as enhance catalytic oxidation of VOC degradation via ozone-assisted catalytic oxidation (OZCO). The results indicate that Mn modified TiO2/AC (i.e. 0.1%Mn/20%TiO2/AC) achieved a toluene removal efficiency of nearly 86% with 100% elimination rate of O3. With the help of Mn/TiO2/AC catalyst, O3 was catalytically decomposed and transformed into active species of O (1D) and OH, thus enhancing toluene removal. The combination of VUV irradiation with multi-functional catalyst provides a novel and efficient way for the degradation of VOCs.

Authors+Show Affiliations

School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China. Electronic address: seabao8@gmail.com.School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Department of Mechanical Engineering, University of Hong Kong, Hong Kong.Department of Mechanical Engineering, University of Hong Kong, Hong Kong.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29890493

Citation

Shu, Yajie, et al. "Catalytic Oxidation of VOCs Over Mn/TiO2/activated Carbon Under 185 Nm VUV Irradiation." Chemosphere, vol. 208, 2018, pp. 550-558.
Shu Y, Xu Y, Huang H, et al. Catalytic oxidation of VOCs over Mn/TiO2/activated carbon under 185 nm VUV irradiation. Chemosphere. 2018;208:550-558.
Shu, Y., Xu, Y., Huang, H., Ji, J., Liang, S., Wu, M., & Leung, D. Y. C. (2018). Catalytic oxidation of VOCs over Mn/TiO2/activated carbon under 185 nm VUV irradiation. Chemosphere, 208, 550-558. https://doi.org/10.1016/j.chemosphere.2018.06.011
Shu Y, et al. Catalytic Oxidation of VOCs Over Mn/TiO2/activated Carbon Under 185 Nm VUV Irradiation. Chemosphere. 2018;208:550-558. PubMed PMID: 29890493.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Catalytic oxidation of VOCs over Mn/TiO2/activated carbon under 185 nm VUV irradiation. AU - Shu,Yajie, AU - Xu,Yin, AU - Huang,Haibao, AU - Ji,Jian, AU - Liang,Shimin, AU - Wu,Muyan, AU - Leung,Dennis Y C, Y1 - 2018/06/04/ PY - 2018/02/13/received PY - 2018/05/24/revised PY - 2018/06/02/accepted PY - 2018/6/12/pubmed PY - 2018/8/23/medline PY - 2018/6/12/entrez KW - Mn/TiO(2)/AC KW - Multi-functional catalyst KW - O(3) elimination and utilization KW - VOCs elimination KW - VUV irradiation SP - 550 EP - 558 JF - Chemosphere JO - Chemosphere VL - 208 N2 - Volatile organic compounds (VOCs) are regarded as the major contributors to air pollution, and should be strictly regulated. Photocatalytic oxidation (PCO) is of great interest for the removal of VOCs owing to its strong oxidation capability. However, its application is greatly limited by catalytic deactivation. Vacuum Ultraviolet (VUV) irradiation provides a novel way to improve the photocatalytic activity while much O3 will be generated which may cause secondary pollution. In this study, a multi-functional catalyst of Mn/TiO2/activated carbon (AC) was developed to eliminate and utilize O3, as well as enhance catalytic oxidation of VOC degradation via ozone-assisted catalytic oxidation (OZCO). The results indicate that Mn modified TiO2/AC (i.e. 0.1%Mn/20%TiO2/AC) achieved a toluene removal efficiency of nearly 86% with 100% elimination rate of O3. With the help of Mn/TiO2/AC catalyst, O3 was catalytically decomposed and transformed into active species of O (1D) and OH, thus enhancing toluene removal. The combination of VUV irradiation with multi-functional catalyst provides a novel and efficient way for the degradation of VOCs. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/29890493/Catalytic_oxidation_of_VOCs_over_Mn/TiO2/activated_carbon_under_185_nm_VUV_irradiation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(18)31084-1 DB - PRIME DP - Unbound Medicine ER -