Research on Enhanced Electro-Fenton Degradation of Methylene Blue Using Cobalt-loaded Activated Carbon as a Catalyst
KANG Jin
WANG Qi
GAO Zhan
XIONG Ping
CAI Junxiong
Abstract：This paper describes a noval catalyst,cobalt-loaded activated carbon(Co/AC),and a bench-scale experiment in-volving the preparation of Co/AC and the activated carbon(AC)with a sort of raw material,beer-yeast.Researches on enhanc-ing the electric-Fenton degradation of methylene blue(MB)in wastewater were thereby carried out using Co/AC with AC as a control subject,which highlighted the coupling effect of adsorption and catalytic degradation of MB.As a result,it was showed that in the independent adsorption reaction,the processes of adsorption kinetics and isotherm during MB degradation with Co/AC well fitted the pseudo-second-order model and Langmuir equation,respectively,and the theoretical saturated adsorption ca-pacity was 232.48 mg/g,lower than that with AC(399.79 mg/g);while during the electric-Fenton reaction,the efficiencies of re-moving MB and TOC in the presence of Co/AC were respectively 99.05%and 88.57%,being higher than those with AC(95.95%of MB and 68.87%of TOC)and with catalyst FeSO4(35.53%of MB and 32.37%of TOC).Summarily,the excellent catalytic ac-tivity of Co/AC could be attributed to its ability for boosting the generation of·OH;and the coupling process of adsorption/cata-lytic degradation of MB was in compliance with the Langmuir-first-order-kinetic equation that had been constructed.
Keywords：cobalt-loaded activated carbonelectric-Fentonadsorptioncatalytic degradationmethylene blue
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 58-64 )