化工矿物与加工2023，Vol.52Issue(12)：22-27,6.DOI:10.16283/j.cnki.hgkwyjg.2023.12.004
煤矸石制备混晶型分子筛及其吸附铜锌离子性能研究
Preparation of mixed crystal zeolite from coal gangue and its adsorption performance for copper and zinc ions
摘要
Abstract
A typical coal gangue in Junger area of Inner Mongolia was studied.NaX/NaP mixed crystal molecular sieve was prepared by alkaline melt-hydrothermal method.The molecular sieve was analyzed by X-ray diffraction(XRD),infrared spectroscopy(FTIR)and scanning electron microscopy(SEM).The effects of initial mass concen-tration,adsorption temperature,adsorption time and dosage of molecular sieve on the adsorption properties of Cu2+ and Zn2+ in water by NaX/NaP mixed molecular sieve were systematically studied.The results showed that:The adsorption processes of Cu2+ and Zn2+ by NaX/NaP mixed molecular sieve were consistent with the Langmuir isother-mal adsorption model,and the saturated adsorption capacities of Cu2+ and Zn2+ were 118.68 mg/g and 127.86 mg/g respectively.The adsorption of Cu2+ and Zn2+ by mixed molecular sieve conforms to the quasi-second-order adsorption kinetics,and the adsorption process is diffusion process.Coal gangue based molecular sieve shows good adsorption effect on heavy metal ions,and can be used to treat heavy metal wastewater,thus realizing high-value utilization of coal gangue.关键词
煤矸石/分子筛/吸附性能/混晶/重金属离子/废水治理Key words
coal gangue/zeolite/adsorption performance/mixed crystal/heavy metal ion/wastewater treatment分类
化学化工引用本文复制引用
马清水,郭瑞,张玉波..煤矸石制备混晶型分子筛及其吸附铜锌离子性能研究[J].化工矿物与加工,2023,52(12):22-27,6.基金项目
华电煤业集团有限公司科技项目(CHDMYKJ21-02-02). （CHDMYKJ21-02-02）
