稻壳为模板和硅源合成Ni-TiO_2-SiO_2对龙胆紫水溶液的吸附性能研究  

Study on the Adsorption Property of Adsorbent Ni-TiO_2-SiO_2 Synthesized by Using Rice Husks as Silicon Source and Template to Gentian Violet Solution

作　　者：缪应纯[1] 闵良[2] 刘树云[1] 李贵军[1] 

机构地区：[1]曲靖师范学院化学化工学院资源与环境化学重点实验室,云南曲靖655011 [2]保山学院资源环境学院,云南保山678200

出　　处：《安徽农业科学》2011年第27期16727-16729,16774,共4页Journal of Anhui Agricultural Sciences

基　　金：云南省教育厅研究基金(09Y0392);曲靖师范学院科学研究基金(2009QN032);曲靖师范学院教学改革项目"分析化学重点课程";"仪器分析优质课程"

摘　　要：[目的]研究稻壳为模板和硅源合成Ni-TiO2-SiO2对龙胆紫水溶液的吸附性能。[方法]以稻壳为原料合成可再生的染料吸附剂Ni-TiO2-SiO2,研究Ni-TiO2-SiO2对龙胆紫染料的吸附行为。[结果]吸附1 h后Ni-TiO2-SiO2对龙胆紫的吸附率可达90%左右;浓度为25 mg/L的100 ml龙胆紫染料水溶液中,当染料溶液的pH=8、吸附剂用量为0.07 g时,Ni-TiO2-SiO2的吸附效果最好。更重要的是Ni-TiO2-SiO2作为吸附剂可重复使用,并不会因为泄露造成二次污染。[结论]该研究为实际工程应用提供依据。[Objective] The aim was to study the adsorption property of adsorbent Ni-TiO2-SiO2 synthesized by using rice husks as silicon source and template to gentian violet solution.[Method] The renewable dye adsorbent Ni-TiO2-SiO2 was synthesized by using rice husks as raw material to study the adsorption property of Ni-TiO2-SiO2 to gentian violet.[Result] The adsorption rate of Ni-TiO2-SiO2 to gentian violet reached about 90% after adsorption for 1 h.In 100 ml of gentian violet solution with concentration of 25 mg/L and pH of 8,Ni-TiO2-SiO2 with dosage of 0.07 g had the best adsorption effect.Most importantly,adsorbent Ni-TiO2-SiO2 could be used repeatedly,and couldn＇t lead to secondary pollution due to leaking.[Conclusion] The study could provide references for practical engineering application.

关 键 词：稻壳 模板 硅源 Ni-TiO2-SiO2 吸附 

分 类 号：X703.1[环境科学与工程—环境工程]