聚多巴胺/蒙脱土复合材料对SO_2的吸附性能  

SO_2 adsorption property of polydopamine / montmorillonite composites

作　　者：曾安然[1,2] 陈汝盼[1,2] 林志杰[1,2] 林松柏[1,2] 

机构地区：[1]黎明职业大学轻纺工程学院,泉州362000 [2]实用化工材料福建省高校应用技术工程中心,泉州362000

出　　处：《环境工程学报》2015年第10期4982-4986,共5页Chinese Journal of Environmental Engineering

基　　金：福建省教育厅科技项目(JA14428)

摘　　要：采用原位插层聚合制备聚多巴胺改性蒙脱土复合材料并研究其SO2吸附性能。对复合材料进行元素分析、红外分析、热稳定性和X射线衍射表征,结果证实,聚多巴胺大分子链不仅在蒙脱土表面包覆改性,同时插层进入蒙脱土层间,增大蒙脱土层间距。讨论SO2起始质量分数、吸附剂用量和吸附温度对单位吸附容量的影响,结果表明,聚多巴胺改性蒙脱土的SO2吸附性能显著提高。在SO2起始质量分数为0.5、吸附剂用量为8 g、吸附温度为125℃时,聚多巴胺改性蒙脱土复合材料的单位吸附容量为1.225 g/g。Polydopamin / montmorillontie composite was prepared by in-situ intercalative polymerization,and its SO2 absorption properties were investigated. The composite was characterized by elemental annlysis,FT-IR,XRD and TGA. Results show that montmorillontie was surface-modified by polydopamin,and intercalated into interlayered structure. The effect of SO2 initial quality score,adsorbent loading and adsorbent temperatureon unit adsorption capacity were discussed. The optimum unit adsorption capacity was 1. 225 g / g,when the SO2 initial quality score was 0. 5,adsorbent loading was 8 g and adsorbent temperature was 125℃.

关 键 词：聚多巴胺 蒙脱土 原位插层 SO2 吸附 

分 类 号：X701[环境科学与工程—环境工程]