| Title: | Three-dimensional hierarchical porous sludge-derived carbon supported on silicon carbide foams as effective and stable Fenton-like catalyst for odorous methyl mercaptan elimination |
| Author(s): | Yang J; Zhang Q; Zhang F; Xia D; Liu H; Tian S; Sun L; Shu D; He C; Runa S; |
| Address: | "School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China. Electronic address: xiadehua3@mail.sysu.edu.cn. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China. Key Lab of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China. Electronic address: hechun@mail.sysu.edu.cn. Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan" |
| DOI: | 10.1016/j.jhazmat.2018.06.045 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "The poor reusability of catalysts and secondary pollution are critical issues for sulfur-containing volatile organic compounds (S-VOCs) removal. In this paper, a three-dimensional (3D) hierarchical porous sludge-derived carbon supported on silicon carbide foams (SiC) has been fabricated for deep decomposition of S-VOCs under ambient conditions. The sludge-derived Fenton-like catalyst has been confirmed to be hierarchical 3D porous structure based on detailed characterization by scanning electron microscopy (SEM), X-ray diffraction (XRD), Nitrogen adsorption-desorption measurements and Raman spectroscopy. Significantly, the catalyst after KOH activation (SC(FeK)-SiC) shows excellent catalytic decomposition of methyl mercaptan (CH(3)SH) with almost complete CH(3)SH oxidation into sulfate using hydrogen peroxide as an oxidant under ambient conditions. This catalyst also possesses relative low iron dissolution and excellent cycling performance. The efficient catalytic ability of SC(FeK)-SiC can be attributed to SiC foam functioned as a stable 3D macroporous skeleton, in which the porous sludge-derived carbon immobilizes the active iron species and promotes the efficient capture of gaseous CH(3)SH, thus facilitating the decomposition of CH(3)SH by generating reactive species, specifically .OH. The reaction mechanism was systematically investigated. Herein, the design of the porous sludge-derived carbonaceous Fenton-like catalyst paves an avenue for efficient VOCs treatment and rational sludge disposal" |
| Keywords: | Fenton-like reaction KOH activation Methyl mercaptan oxidation S-VOCs removal Sludge derived catalyst; |
| Notes: | "PubMed-not-MEDLINEYang, Jingling Zhang, Qing Zhang, Feng Xia, Dehua Liu, Huadan Tian, Shuanghong Sun, Lianpeng Shu, Dong He, Chun Runa, Sabiha eng Research Support, Non-U.S. Gov't Netherlands 2018/07/11 J Hazard Mater. 2018 Sep 15; 358:136-144. doi: 10.1016/j.jhazmat.2018.06.045. Epub 2018 Jun 25" |
