Open AccessResearch on Activating Persulfate by Co-based Multicomponent Canalysts
Author(s) -
Qiang Liu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/495/1/012062
Subject(s) - persulfate , catalysis , hydrogen peroxide , chemistry , radical , sulfate , inorganic chemistry , hydroxyl radical , potassium persulfate , transition metal , photochemistry , noble metal , organic chemistry , polymer , polymerization
Persulfate (PS) is a hydrogen peroxide (H 2 O 2 ) derivative, which can be catalyzed to produce sulfate radical. It can be activated in the following three ways: energy excitation, alkali activation and transition metal activation. Sulfate radical oxidation is an important advanced oxidation technology for wastewater treatment and Advanced oxidation method is the main method for the treatment of refractory organic wastewater, mainly through the generation of hydroxyl radical (•OH) or sulfate radical (SO 4 − •) and other free radicals to initiate a series of chain reactions. Co 2+ activated persulfate (PMS) produces SO 4 − • and Co 3+ showing strong oxidation capacity. The preparation of catalysts prepared by “transition-metal, rare-earth-metal and noble-metal” can activate persulfate and produce SO 4 − •, which can effectively degrade dyeing waste-water.