首页|Fabrication of pollution-free coal gangue-based catalytic material utilizing ferrous chloride as activator for efficient peroxymonosulfate activation

Fabrication of pollution-free coal gangue-based catalytic material utilizing ferrous chloride as activator for efficient peroxymonosulfate activation

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Novel coal gangue-based persulfate catalyst(CG-FeCl2)was successfully synthesized by the means of calcinating under nitrogen atmosphere with the addition of ferrous chloride tetrahydrate(FeCl2·4H2O).The phase transformation of the pre-pared materials and gas products during the heating process are thoroughly investigated.It is suggested that ferrous chloride participated in the phase transformation and formed Si-O-Fe bonds.And the main gaseous products are H2O,H2,and HC1 during the heating process.Besides,the ability of CG-FeCl2 to activate peroxymonosulfate(PMS)for catalytic degradation of polycyclic aromatic hydrocarbons(PAHs)and phenol was deeply studied.More than 95％of naphthyl,phenanthrene and phenol were removed under optimizied conditions.In addition,1O2,·OH,and SO4-were involved in the CG-FeCl2/PMS system from the free radical scavenging experiment,where 1O2 played a major role during the oxidation process.Further-more,CG-FeCl2/PMS system exhibited superior stability in a relatively wide pH range and the presence of common anion from related degradation experiments.Overall,the novel CG-FeCl2 is an efficient and environmentally friendly catalyst,displaying potential application prospect in the field of PAHs and phenol-contaminated wastewater treatment.

Coal ganguePersulfate activationAdvanced oxidation processesPolycyclic aromatic hydrocarbonsPhenolFerrous chloride

Zhiming Sun、Xinlin Wang、Shaoran Jia、Jialin Liang、Xiaotian Ning、Chunquan Li

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School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China

Key Laboratory of Coal Processing and Efficient Utilization,(China University of Mining and Technology),Ministry of Education,Xuzhou 221116,China

National Key R&D Program of ChinaNational Key R&D Program of ChinaChina Postdoctoral Science FoundationFundamental Research Funds for the Central Universities

2019YFC19049032020YFC18065042020M6807572022XJHH08

2024

10.1007/s40789-023-00659-5

国际煤炭科学技术学报(英文)

国际煤炭科学技术学报(英文)

CSTPCD
ISSN：2095-8293
年,卷(期)：2024.11(1)