多巴胺包覆纳米普鲁士蓝的制备及其对Sr^(2+)的吸附性能研究  

Preparation of Dopamine Coated Nano-Prussian Blue and Study on Its Adsorption Performance for Sr^(2+)

作　　者：杜艳军[1] 李小燕[1] 刘义保[1] 乐长高[1] DU Yanjun;LI Xiaoyan;LIU Yibao;LE Zhanggao(State Key Laboratory of Nuclear Resource and Environment,East China University of Technology,Nanchang 330013,China)

机构地区：[1]东华理工大学核资源与环境国家重点实验室,南昌330013

出　　处：《有色金属工程》2021年第12期115-121,共7页Nonferrous Metals Engineering

基　　金：国家自然科学基金资助项目(41761090,11465002,11765002);江西省自然科学基金项目(20171ACB2021);江西省教育厅科学技术研究项目(GJJ200715)。

摘　　要：以水热法制备纳米普鲁士蓝,利用多巴胺盐酸将其包覆制备聚多巴胺纳米普鲁士蓝复合材料,研究其对溶液中Sr^(2+)的吸附性能。考察溶液pH值、固液比、初始质量浓度、吸附时间等因素对复合材料吸附Sr^(2+)的影响。在pH值为9.0、固液比0.4 g/L、吸附时间60 min、初始质量浓度30 mg/L的条件下,Sr^(2+)的吸附率和吸附容量分别达到70%和23.95 mg/g。结果表明,聚多巴胺包覆普鲁士蓝对Sr^(2+)有较好的吸附效果,该复合材料对含锶放射性废水处理具有潜在的应用价值。研究结果可为核工业发展过程中产生的含锶放射性废水处理与环境修复提供一定的理论依据和技术支持。Nano-Prussian blue was prepared by hydrothermal method,and dopamine hydrochloric acid was used to coat it to prepare polydopamine nano-Prussian blue composite material,and its adsorption performance for Sr^(2+)in solution was studied.Investigate the influence of the solution pH,solid-liquid ratio,initial mass concentration,adsorption time and other factors on the adsorption of Sr^(2+)by the composite material.Under the conditions of pH=9.0,solid-liquid ratio of 0.4 g/L,adsorption time of 60 min,and initial mass concentration of 30 mg/L,the adsorption rate and capacity of Sr^(2+)reached 70%and 23.95 mg/g respectively.The experimental results show that the polydopamine-coated Prussian blue has a good adsorption effect on Sr^(2+),and the composite material has potential application value for the treatment of strontium-containing radioactive wastewater.The research results of this paper can provide certain theoretical basis and technical support for the treatment of strontium-containing radioactive waste water and environmental remediation during the development of the nuclear industry.

关 键 词：多巴胺包覆纳米普鲁士蓝 锶 吸附 性能 

分 类 号：TB34[一般工业技术—材料科学与工程]