Sulfite activation by ZnO-encapsulated hydrogels for degradation of trimethylphenol  

作　　者：Jiyuan Nai Yaning Han Shoudu Zhang Youxun Li Xiaowei Chen Ren’an Wu Li Wang Lei Jiang 

机构地区：[1]Heavy Oil State Laboratory and Center for Bioengineering and Biotechnology,College of Chemical Engineering,China University of Petroleum(East China),Qingdao 266580,China [2]Departamento de Ciencia de los Materiales,Ingeniería Metalúrgica y Química Inorgánica,Facultad de Ciencias,Universidad de Cádiz,Campus Río San Pedro,Puerto Real(Cádiz),E-11510,Spain [3]Marine Science Research Institute of Shandong Province,Qingdao 266104,China [4]CAS Key Laboratory of Separation Sciences for Analytical Chemistry,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China

出　　处：《Nano Research》2023年第10期12345-12356,共12页纳米研究（英文版）

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.

摘　　要：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.

关 键 词：ZnO nanoparticles hydrogel 2 4 6-trimethylphenol NANOCATALYST DEGRADATION SULFITE 

分 类 号：O64[理学—物理化学]