粉煤灰沸石分子筛的制备及其处理含NH_(4)^(+)废水的研究  

Preparation of Fly Ash Zeolite Molecular Sieve and Its Treatment of NH_(4)^(+)in Wastewater

作　　者：简伦琴 朱芷晴 汤家兴 张婷 李钰珊 刘春冬 Jian Lunqin;Zhu Zhiqing;Tang Jiaxing;Zhang Ting;Li Yushan;Liu Chundong(School of Life and Health Sciences,Huzhou College,Zhejiang,313000)

机构地区：[1]湖州学院生命健康学院,浙江313000

出　　处：《当代化工研究》2025年第5期112-114,共3页Modern Chemical Research

基　　金：国家级大学生创新创业训练计划项目“基于处方优化的复合天然果蔬保鲜剂的设计及其保鲜效果研究”(项目编号:202413287020);湖州市自然科学资金项目“O-取代季铵化壳聚糖溶血机制及其构效关系研究”(项目编号:2021YZ04)。

摘　　要：以粉煤灰为主要原料,采用碱熔水热法制备粉煤灰沸石分子筛。采用XRD、BET、SEM、FT-IR等方法对产物进行表征,结果表明产物呈立方晶体结构,颗粒分布均匀,比表面积为485.6652m2/g,平均孔径为2.0052nm。所制备的分子筛具有较高的NH_(4)^(+)去除率,最优吸附条件为吸附剂浓度4g/L、溶液pH=6、温度25℃,NH_(4)^(+)去除率可达90%以上。粉煤灰沸石分子筛在废水治理领域有着良好的应用前景。Fly ash zeolite molecular sieves were prepared using the alkali fusion hydrothermal method with fly ash as the main raw material.The products were characterized by XRD,BET,SEM,and FT-IR.The results showed that the products exhibited a cubic crystal structure,uniform particle distribution,a specific surface area of 485.6652 m²/g,and an average pore size of 2.0052 nm.The prepared molecular sieve has a high NH_(4)^(+)removal rate.The optimal adsorption conditions are an adsorbent concentration of 4 g/L,a solution pH of 6,and a temperature of 25℃,with the NH_(4)^(+)removal rate reaching over 90%.The fly ash zeolite molecular sieve has a promising application prospect in the field of wastewater treatment.

关 键 词：粉煤灰 沸石分子筛 废水 NH4+ 吸附 

分 类 号：TQ42[化学工程] X703[环境科学与工程—环境工程]