Photochemical oxidation of thiocyanates exposed to quasi-solar radiation

Prospects Mining and Metallurgy Industry Development

Batoeva, A.A.^1 ; Sizykh, M.R.^1 ; Munkoeva, V.A.^1

Baikal Institute of Nature Management, Ulan-Ude, Russia^1

关键词: Direct photolysis;    Exposure-time;    Kinetic law;    Oxidation efficiency;    Oxidation Systems;    Persulfate oxidation;    Photochemical oxidation;    Reaction medium;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/229/1/012016/pdf
DOI  :  10.1088/1755-1315/229/1/012016

来源: IOP

【 摘 要 】

The article studies kinetic laws regulatingthiocyanateoxidation in direct photolysis and in combined iron-persulfate oxidation systems using quasi-solar (simulated) xenon lampradiation. The influence of the main factors (pH, reaction medium temperature, characteristics of the catalyst, exposure time) on photochemical thiocyanate oxidation efficiency was identified. A conversion degree and initial thiocyanate oxidation speed in the oxidation systems under study change in the {UV/PS/Fe3+} {UV/PS/Fe2+}{PS/Fe3+} { PS/Fe2+} { UV/PS/Fe0} { PS/Fe0} { UV/PS} system.