摘要
采用水热法制备了生物质碳点功能化锰钴金属氧化物(CoMn_(2)O_(4)/CDs)用于处理含铀废水。XRD、FTIR、BET、SEM分析了CoMn_(2)O_(4)/CDs的结构组成和微观形貌。从多方面研究了CoMn_(2)O_(4)/CDs在pH=1和4条件下对铀酰离子的吸附能力。重要的是,在pH=1,t=180 min,CoMn_(2)O_(4)/CDs对U(VI)的吸附容量达到147.28 mg/g,去除率为34.6%,这高于目前用于高酸环境除铀的大多数吸附剂。CoMn_(2)O_(4)/CDs在宽pH范围内具有高效的铀捕获能力,是含铀废水净化的一个成功案例。
A functionalized manganese cobalt metal oxide(CoMn_(2)O_(4)/CDs)was prepared using a hydrothermal method.The structure of CoMn_(2)O_(4)/CDs was confirmed by XRD,FTIR,BET,SEM.The adsorption capacity of CoMn_(2)O_(4)/CDs for uranyl ions at pH=1 and pH=4 were studied from many aspects.Importantly,When pH=1,t=180 min,the adsorption capacity of CoMn_(2)O_(4)/CDs for U(VI)reached 147.28 mg/g,with a removal rate of 34.6%.This is higher than most of the absorbents currently used for uranium removal in high-acid environments.CoMn_(2)O_(4)/CDs shows excellent stability and selectivity.CoMn_(2)O_(4)/CDs has efficient uranium capture capabilities in a wide pH range.It is a successful example for the purification of uranium-containing wastewater.
作者
范雪琪
于滢
孙艺嫚
杨嘉梁
纪德彬
FAN Xueqi;YU Ying;SUN Yiman;YANG Jialiang;JI Debin(College of New Energy and Materials,Northeast Petroleum University,Daqing 163001,China;Quality Inspection Center,Daqing Petrochemical Company,PetroChina,Daqing 163001,China;National Key Laboratory of Continental Shale Oil,Northeast Petroleum University,Daqing 163001,China)
出处
《应用化工》
北大核心
2025年第8期2011-2017,共7页
Applied Chemical Industry
基金
国家自然科学基金(12305380)。
