N-TiO_2/AC吸附剂的制备及其去除地表水砷(V)性能的研究  

A Study of the Preparation of N-TiO_2/AC Adsorbents and Their Ability to Remove As(V) from Surface Water

作　　者：王澍[1] 霍汝霏 WANG Shu;HUO Ru-fei(College of Chemistry and Chemical Engineering,Huangshan University,Huangshan 245041,China)

机构地区：[1]黄山学院化学化工学院,安徽黄山245041

出　　处：《五邑大学学报（自然科学版）》2018年第3期57-62,共6页Journal of Wuyi University(Natural Science Edition)

基　　金：国家级大学生创新创业项目(201710375026);黄山学院校级科研项目(2011xkj014)

摘　　要：为开发机械强度较高的活性炭基复合型吸附材料去除地表水中的砷,本文使用煤质活性炭、果壳活性炭和椰壳活性炭等不同种类的活性炭作为基础吸附材料,用低温沉淀法在其表面负载N掺杂的2TiO_2以制备活性炭基复合型吸附材料2N-TiO_2/AC.研究了活性炭的种类对复合型吸附材料2N-TiO_2/AC去除水体中砷性能的影响,以及不同波长的光照条件下,复合型吸附材料2N-TiO_2/AC去除水体中砷的性能差异.结果表明,复合型吸附材料2N-TiO_2/AC吸附去除地表水砷(V)的能力较改性前的活性炭均有明显提升,同时,光照条件可以进一步提高其吸附去除地表水砷(V)的能力.In order to synthesize composite adsorbent materials based on activated carbon with high mechanical strength for removing arsenic from surface water,the 2 N-TiO/AC complex adsorbents based on activated carbon with N?doped TiO2 were produced by the low temperature precipitation method with three kinds of activated carbons as base materials respectively:coal-based activated carbon,husk-based activated carbon and coconut-based activated.Different activated carbons influenced the efficiency of the 2 N-TiO/AC complex adsorbents’ability to remove arsenic from surface water respectively,under conditions of different wave lengths.The results show that 2 N-TiO/AC complex adsorbents’ability to remove arsenic from surface water improves significantly compared with corresponding activated carbons.Also lighting conditions can further improve their ability to adsorb and remove arsenic(V)from surface water.

关 键 词：低温沉淀法 N-TiO2/AC吸附剂 吸附除砷法 

分 类 号：O647.9[理学—物理化学]