氧化石墨烯/纤维素复合微球对亚甲基蓝的吸附性能研究  

Preparation of Graphene Oxide/Cellulose Composite Microspheres and Study on its Adsorption Properties for Methylene Blue

作　　者：刘遵义 曲静 谭磊 杨卉[1] 郝燕[1] Liu Zunyi;Qu Jing;Tan Lei;Yang Hui;Hao Yan(School of Chemistry and Chemical Engineering,Inner Mongolia University of Science&Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学化学与化工学院,内蒙古包头014010

出　　处：《广东化工》2022年第20期1-3,共3页Guangdong Chemical Industry

基　　金：国家自然科学基金项目(11965015);内蒙古自治区高等学校“青年科技英才支持计划”项目(NJYT22072);内蒙古科技大学优秀青年基金项目(2019YQL05)。

摘　　要：为处理废水中的亚甲基蓝(MB),本文在NaOH/尿素水溶液中,将微晶纤维素(MCC)与氧化石墨烯(GO)复合,利用反相悬浮法制备出复合物微球(MCC/GO)。通过傅里叶红外光谱(FTIR)表征复合物证实MCC与GO成功复合,利用热重分析(TGA)表征后证实其具有良好的热稳定性。将其应用于吸附MB,研究了吸附时间和吸附剂用量对其吸附性能的影响。实验结果表明,MCC/GO用于吸附MB时,可在6 h达到吸附平衡;当吸附剂用量为30 mg时,吸附量达到最大值88.4 mg·g^(-1)。In order to treat methylene blue(MB) in wastewater, composite microspheres(MCC/GO) was prepared by compounding microcrystalline cellulose(MCC) and graphene oxide(GO) in NaOH/urea system via inverse suspension method. The sample was characterized using Fourier infrared spectroscopy(FTIR),which confirmed that MCC and GO were successfully combined. It is proved that it has good thermal stability by thermogravimetric analysis(TGA). The effects of adsorption time and adsorbent dosage on the adsorption performance of MB on MCC/GO were studied. The results showed that the adsorption equilibrium could be achieved within 6 h. When the dosage of adsorbent was 30 mg, the maximum adsorption capacity was 88.4 mg·g^(-1).

关 键 词：氧化石墨烯 微晶纤维素 复合物微球 吸附 亚甲基蓝 

分 类 号：TQ424[化学工程]