摘要
利用2-羰基丙酸邻羟基苯甲酰腙对MCM-41分子筛的表面进行功能化,制备得到2-羰基丙酸邻羟基苯甲酰腙功能化MCM-41(简称功能化MCM-41)。采用红外光谱法和热重分析对功能化MCM-41进行表征,研究其对废水中铜离子的吸附性能,并探讨功能化MCM-41对铜离子的吸附机理。结果表明,当吸附时间为30 min,吸附温度为20℃,吸附剂用量为0.08 g,p H为6~7时,功能化MCM-41分子筛对铜离子的吸附效果最佳;在最佳条件下,功能化MCM-41对铜离子的吸附可以达到97.58%。
The hydrazone functionalized MCM-41 molecular sieve was prepared with 2-oxo-propionic acid salicyloyl hydrazone and MCM-41molecular sieve as reactants, and was characterized by infrared spectroscopy and thermogravimetric analysis. Its adsorption proporties were evaluated and the adsorption mechanism was discussed. The results showed that when the adsorption time was 30 rain, the adsorption temperature was 20℃, the addition of modified MCM-41 was 0. 08 g, and the pH was 6 -7, the adsorption efficiency of Cu^2＋ was the best; the removal rate of Cu^2＋ was up to 97.58% under the optimum condition.
作者
陈凤英
金振国
常亮亮
刘萍
CHEN Fengying JIN Zhenguo CHANG Liangliang LIU Ping(College of Chemical Engineering and Modem Materials Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China)
出处
《材料开发与应用》
CAS
2017年第4期122-127,共6页
Development and Application of Materials
基金
商洛市科技科技局项目(SK-2014-2)
陕西省大学生创新创业训练计划项目(No.2250)
商洛学院项目(14SKY011)
