干酪素/氧化石墨烯水凝胶的合成与对亚甲基蓝的吸附  

Synthesis and adsorption of methylene blue on casein/graphene oxide hydrogels

作　　者：王慧民 孙雍 李留波 崔明飞 许文硕 Wang Huimin;Sun Yong;Li Liubo;Cui Mingfei;Xu Wensho

机构地区：[1]青岛大学机电工程学院,生物多糖纤维成形与生态纺织国家重点实验室,山东青岛266071

出　　处：《西部皮革》2020年第20期1-2,共2页West Leather

基　　金：国家自然科学基金(51672140);山东省泰山学者计划(201511029)。

摘　　要：干酪素是一种重要的生物高聚物,溶于水可形成水凝胶。利用干酪素的凝胶特性采用真空冷冻干燥法制备了干酪素/氧化石墨烯水凝胶(CA/GO)。采用扫描电镜(SEM)对CA/GO水凝胶的结构和形貌进行了表征。同时通过研究了吸附剂剂量和温度等实验参数对CA/GO水凝胶吸附亚甲基蓝(MB)能力的影响。由Langmuir等温线测定,CA/GO水凝胶最大吸附能力为389.43mg/g。Casein is an important biopolymer,which can form hydrogels in water.Casein/graphene oxide hydrogels(CA/GO)were prepared by vacuum freeze drying using gel properties of casein.The structure and morphology of CA/GO hydrogel were characterized by scanning electron microscopy(SEM).Meanwhile,the effects of adsorbent dosage and temperature on the ability of CA/GO hydrogel to adsorb methylene blue(MB)were studied.The maximum adsorption capacity of CA/GO hydrogel was 403.23 mg/g by Langmuir isotherm.

关 键 词：干酪素 氧化石墨烯 水凝胶 

分 类 号：X703[环境科学与工程—环境工程]