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Catalytic Degradation of Ortho-Chlorophenol Using Activated Carbon Modified by Different Methods
Zheng, Y; Guo, YY; Luo, L; Zhu, TY; Zheng, Yang; Guo, Yangyang; Luo, Lei; Zhu, Tingyu
2018
Source PublicationCATALYSTS
ISSN2073-4344
Volume8Issue:1
Abstract

The performance of activated carbon (AC) modified by different methods was compared for its catalytic degradation of ortho-chlorophenol (o-CP). For the chemically treated AC, the catalytic effect of AC-NH3 center dot H2O was superior to the other catalysts examined, having an o-CP removal efficiency of 82.2% at 330 degrees C. For the metal-modified catalysts, AC-V and AC-Co showed similar removal performances of 93.2% at 330 degrees C. N-2 adsorption-desorption isotherms, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and gas chromatography-mass spectrometry (GC-MS) analyses were used to characterize the reaction products, and different reaction mechanisms were proposed for both AC-NH3 center dot H2O and AC-V according to the results. Complete oxidative degradation of o-CP was achieved by AC-V, with AC-NH3 center dot H2O leading to the formation of additional dioxins. It can be deduced that a risk of dioxin synthesis and escape during the regeneration process is possible when nitrogen-modified carbon is used in selective catalytic reduction (SCR) denitrification reactions, especially in the presence of chlorine atoms, benzene rings, and oxygen.

Other Abstract

This research was financially supported by the National Key Research and Development Program of China (2017YFC021080401) and the National Nature Science Foundation of China (Nos. 51608508, 51778600).

KeywordCatalysis V2o5/tio2 Catalysts Modified Carbon Oxide Catalysts Ortho-chlorophenol Flue-gas Degradation Mechanism Oxidation Mechanism Surface Chlorobenzene Reduction Removal Dioxins
SubtypeArticle
DOI10.3390/catal8010037
Funding OrganizationNational Key Research and Development Program of China [2017YFC021080401] ; National Nature Science Foundation of China [51608508, 51778600]
WOS IDWOS:000424099700036
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26814
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Zheng, Y,Guo, YY,Luo, L,et al. Catalytic Degradation of Ortho-Chlorophenol Using Activated Carbon Modified by Different Methods[J]. CATALYSTS,2018,8(1).
APA Zheng, Y.,Guo, YY.,Luo, L.,Zhu, TY.,Zheng, Yang.,...&Zhu, Tingyu.(2018).Catalytic Degradation of Ortho-Chlorophenol Using Activated Carbon Modified by Different Methods.CATALYSTS,8(1).
MLA Zheng, Y,et al."Catalytic Degradation of Ortho-Chlorophenol Using Activated Carbon Modified by Different Methods".CATALYSTS 8.1(2018).
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