摘要
近年来,由于工业化的快速发展,水体重金属离子处理已成为一个重要研究课题.因此,研究开发可再生可降解的环保型材料具有实际意义.本文基于羧甲基化方法研制纤维素基吸附材料,制备出一种羧甲基纤维素纤维(CMF)材料,该材料具有较高的羧基含量和理想的纤维形态,并且可通过过滤吸附去除重金属离子,如铜离子.结果表明,该吸附材料不仅能保持良好的纤维形态,并且羧基含量可达到104.28mmol/100g,铜离子的吸附容量最高为64.15mg/g,同时具有良好的再生性能,这使其在作为去除重金属离子的可再生吸附材料中拥有巨大的商业潜力.
In recent years ,the decontamination of heavy metals from water has become an im portant topic in China due to the rapid industrialization. Thus, it is of both fundamental and practical interest to develop ecofriendly, renewable, and degradable materials for this pur pose. In this study,cellulose based adsorbent materials were prepared based on the carboxy methylation modification. A kind of carboxymethylated cellulose fiber (CMF) material with high carboxyl content and desirable fiber morphology was obtained, and its application in heavy metal ions removal,was investigated. The results showed that the CMF based adsor bent material not only maintained the characteristic of fiber morphology, but also had a car boxyl group content of 104. 28 mmol/100 g and a copper ion adsorption capacity of up to 64.15 mg/g. Besides, the CMF material retained an excellent regeneration properties, so it has huge commercial potential in the applacation of heavy metal ions adsorption material.
作者
王建
刘敏
孙健鹏
徐耀威
WANG Jian;LIU Min;SUN Jian peng;XU Yao wei(College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimen tal Light Chemistry Engineering Education,Shaanxi University of Science & Technology,Xi'an 710021,China)
出处
《陕西科技大学学报》
CAS
2018年第6期19-24,共6页
Journal of Shaanxi University of Science & Technology
基金
陕西省科技厅重点研发计划项目(2017GY-184)
关键词
羧甲基纤维素纤维(CMF)
重金属离子
吸附
再生
carboxymethylated cellulose fiber (CMF)
heavy metal ion
adsorption
regener ation