基于天然火山灰水热合成纳米沸石分子筛及其吸附行为研究  

Research on the Transformation of Naturally Occurring Volcanic Tephra into Nano-zeolite Molecular Sieves and Their Adsorptive Performance

作　　者：王逸凡[1] 罗敏[1] 徐芳[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《非金属矿》2014年第3期66-68,共3页Non-Metallic Mines

基　　金：国家海洋公益项目(201005026);科技部中-斯国际互访项目(06-13)

摘　　要：基于天然火山灰矿物资源结构中硅、铝组成成分,优化水热合成纳米沸石分子筛条件:在150℃下,使1.0 g火山灰在15 mL 4 mol/L氢氧化钠溶液介质中反应24 h,简便制备得到具有有序孔道结构的纳米沸石分子筛。批式吸附实验显示,相应沸石分子筛材料可有效吸附去除水体中磷酸根,饱和吸附量达0.83 mg/g。Based on silicon anti aluminum component in naturally occurring volcanic tephra （VT） mineral, the hydrothermally synthetical conditions were optimized in order to transform VT into ordered nano-zeolite molecular sieves： 1.0 g VT was added into 15 mL 4 mol/L NaOH, reaction under 150 ℃ for 24 h. Subsequently, the synthesized zeolite particles demonstrated improved performance on phosphorus removal from aqueous solution in a batch mode, and the saturated adsorption capacity for phosphate was 0.83 mg/g.

关 键 词：天然火山灰 沸石分子筛 水热合成 吸附 

分 类 号：TB383[一般工业技术—材料科学与工程] X714[环境科学与工程—环境工程]