Combustion synthesis of mesoporous CoAl_(2)O_(4)for peroxymonosulfate activation to degrade organic pollutants

作     者：Sheng Guo Huiling Tang Liming You Huali Zhang Jun Li Kun Zhou Sheng Guo;Huiling Tang;Liming You;Huali Zhang;Jun Li;Kun Zhou

作者机构：School of Chemistry and Environmental EngineeringWuhan Institute of TechnologyWuhan 430205China Environmental Process Modelling CentreNanyang Environment and Water Research InstituteNanyang Technological UniversitySingapore 637141Singapore School of Mechanical and Aerospace EngineeringNanyang Technological UniversitySingapore 639798Singapore Department of Environmental Science and EngineeringWuhan UniversityWuhan 430079China Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou 450052China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第9期

页      面：2828-2832页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financial support from the National Natural Science Foundation of China(No.51604194) China Scholarship Council(No.201808420137) Nanyang Environment and Water Research Institute(Core Fund),Nanyang Technological University,Singapore 

主　　题：CoAl_(2)O_(4) Combustion synthesis Peroxymonosulfate Sulfate radical Advanced oxidation process 

摘      要：A mesoporous cobalt aluminate(CoAl_(2)O_(4))spinel is synthesized through a combustion method and adopted for the activation of peroxymonosulfate(PMS)to degrade organic *** characterization procedures are conducted to investigate the morphology and physicochemical properties of the CoAl_(2)O_(4)*** to its mesoporous structure,large surface area,and high electrical conductivity,the obtained CoAl_(2)O_(4)exhibits remarkable catalytic activity for Rhodamine B(RhB)*** RhB degradation rate is 89.0 and 10.5 times greater than those of Co_(3)O_(4) and CoAl_(2)O_(4)spinel prepared by a precipitation method,***,the mesoporous CoAl_(2)O_(4)spinel demonstrates a broad operating pH range and excellent *** influence of several parameters(catalyst amount,PMS concentration,initial p H,and coexisting inorganic anions)on the oxidation of RhB is *** quenching tests and electron paramagnetic resonance experiments,sulfate radicals are identified as the predominant reactive species in RhB *** paper provides new insights for the development of efficient,stable,and reusable cobalt-based heterogeneous catalysts and promotes the application of persulfate activation technology for the treatment of refractory organic wastewater.