Trimethylphenol is an organic toxic byproduct of industrial process,which is difficult to be eliminated through conventional degradation without harsh conditions.In this work,a sulfite-based oxidation process activate...Trimethylphenol is an organic toxic byproduct of industrial process,which is difficult to be eliminated through conventional degradation without harsh conditions.In this work,a sulfite-based oxidation process activated by ZnO-embedded hydrogel was studied for the degradation of 2,4,6-trimethylphenols in the ambient conditions.The ZnO/Na_(2)SO_(3)oxidative system can effectively degrade trimethylphenol via the generation of radicals such as SO_(4)^(-)·,OH·,and SO_(3)^(−)·.The presence of hydrogel matrix facilitates the distribution and recyclability of ZnO catalysts while maintaining high degradation kinetics and little leaching of metal ions.Results suggest the promising potential of ZnO-hydrogel in wastewater treatment with good performance in terms of pH sensitivity,anion interference,recyclability,etc.The combination of ZnO catalysts,hydrogel,and sulfite-based advanced oxidation process may provide essential support for the current treatment of alkylated phenols with strong potential in the commercial scale-ups.展开更多
基金the Natural Science Foundation of Shandong Province(No.ZR2017LB028)the Key Research and Development Program of Shandong Province(Nos.2018GSF118032 and 2022CXGC020415)the Fundamental Research Funds for the Central Universities in China(No.18CX02125A).Y.X.L.is grateful for the Research Subsidy Funds of Marine Science Research Institute of Shandong Province.X.W.C.is grateful for Ministry of Science,Innovation and Universities of Spain with project reference number of PID2020-113809RBC33 and by Junta de Andalucía(Spain)with reference number of PY18-2727.
文摘Trimethylphenol is an organic toxic byproduct of industrial process,which is difficult to be eliminated through conventional degradation without harsh conditions.In this work,a sulfite-based oxidation process activated by ZnO-embedded hydrogel was studied for the degradation of 2,4,6-trimethylphenols in the ambient conditions.The ZnO/Na_(2)SO_(3)oxidative system can effectively degrade trimethylphenol via the generation of radicals such as SO_(4)^(-)·,OH·,and SO_(3)^(−)·.The presence of hydrogel matrix facilitates the distribution and recyclability of ZnO catalysts while maintaining high degradation kinetics and little leaching of metal ions.Results suggest the promising potential of ZnO-hydrogel in wastewater treatment with good performance in terms of pH sensitivity,anion interference,recyclability,etc.The combination of ZnO catalysts,hydrogel,and sulfite-based advanced oxidation process may provide essential support for the current treatment of alkylated phenols with strong potential in the commercial scale-ups.
