壳聚糖/贝壳粉的制备及其对亚甲基蓝吸附性能的研究  

Preparation of Chitosan/Shell Powder and Its Adsorption Properties for Methylene Blue

作　　者：秦传高 付鑫磊 周明磊 陈雪峰 王郑轩 QIN Chuangao;FU Xinlei;ZHOU Minglei;CHEN Xuefeng;WANG Zhengxuan(College of Petrochemical Engineering,Zhejiang International Marine Vocational and Technical College,Zhoushan Zhejiang 316021,China)

机构地区：[1]浙江国际海运职业技术学院石油化工学院,浙江舟山316021

出　　处：《当代化工》2024年第5期1082-1085,共4页Contemporary Chemical Industry

基　　金：浙江省教育厅一般科研项目,壳聚糖/贝壳粉的制备及在印染废水处理中的应用研究(项目编号:Y202250756)。

摘　　要：采用壳聚糖液相沉积固定法,以舟山贻贝壳为原料,制备壳聚糖/贝壳粉复合材料,并应用于亚甲基蓝印染废水吸附实验,考察壳聚糖质量分数、吸附剂质量、贝壳粉煅烧温度和吸附时间对吸附效果的影响,并对吸附动力学进行拟合。结果表明:在常温下,采用煅烧温度1 000℃的贝壳粉制备的10%的壳聚糖/贝壳粉,在加入0.15 g吸附剂、吸附时间10 h、处理100 mg·L^(-1)的亚甲基蓝溶液时,亚甲基蓝的脱除率和吸附剂的单位吸附量分别为89.22%和44.6 mg·g^(-1)。壳聚糖/贝壳粉的吸附过程符合准二级动力学模型。Chitosan/shell powder composite material was prepared with Zhoushan Mussel shell as raw material by the method of chitosan liquid deposition and fixation,and it was applied to the adsorption experiment of methylene blue printing and dyeing wastewater.The effects of the amount of chitosan,the amount of adsorbent,the calcination temperature of shell powder and the adsorption time on the adsorption effect were investigated,and the adsorption kinetics was fitted.The experimental results showed that,under normal temperature,10%chitosan/shell powder prepared with shell powder at calcination temperature of 1000℃was added with 0.15 g adsorbent for 10 h to treat 100 mg·L^(-1)methylene blue solution,the removal rate of methylene blue and unit adsorption capacity of adsorbent were 89.22%and 44.6 mg·g^(-1).The adsorption process of chitosan/shell powder was more consistent with the quasi-second-order kinetic model.

关 键 词：贝壳粉 壳聚糖/贝壳粉 亚甲基蓝 吸附性能 

分 类 号：TQ424.3[化学工程]