NH_(2)-MIL-101(Al)的合成及其吸附水中磷的研究  

Synthesis of NH_(2)-MIL-101(Al) and its Adsorption of Phosphorus in Water

作　　者：龚建康 申莎 师睿 叶坪 王邦艳 Gong Jiankang;Shen Sha;Shi Rui;Ye Ping;Wang Bangyan(School of Chemistry and Chemical Engineering,Zhaotong University,Zhaotong 657000,China)

机构地区：[1]昭通学院化学化工学院,云南昭通657000

出　　处：《广东化工》2022年第4期10-13,共4页Guangdong Chemical Industry

基　　金：云南省教育厅科学研究基金项目(No:2021J0474);昭通学院“三全育人”综合改革实践项目(No:2020LLK0010)。

摘　　要：采用溶剂热法合成了NH_(2)-MIL-101(Al)材料,对其进行X射线衍射(XRD),扫描电镜(SEM)、透射电镜(TEM)和N;吸附-脱附(BET)表征分析,并将其应用于水体中磷的吸附研究,结果表明:(1)成功制备出了NH_(2)-MIL-101(Al),SEM、TEM和BET表征分析表明材料形貌呈棒状,长度约500 nm,NH_(2)-MIL-101(Al)材料为介孔材料。(2)在NH_(2)-MIL-101(Al)的投加量为2 g/L,吸附反应时间为2 h,p H为6.00~8.00时,温度为30℃条件下,材料对初始浓度为2.0 mg/L的磷的去除率可达94.5%,该材料吸附水中磷的过程符合拟二级动力学和Langmuir模型。(3)将合成的材料应用于实际水体中磷的吸附去除,其去除率为23.7%。根据系列实验结果证明,NH_(2)-MIL-101(Al)在吸附除磷方面,具有一定的吸附潜能。NH_(2)-MIL-101(Al) materials was synthesized by solvothermal method,X-ray diffraction (XRD),Scanning electron microscopy (SEM),Transmission electron microscopy (TEM) and N;adsorption-desorption (BET) were used to characterize it,and it was applied to the study of adsorption for phosphorus removal in water,The results showed that:(1)NH_(2)-MIL-101(Al) was successfully prepared,and the characterization analysis of SEM,TEM and BET showed that the morphology of the material was rod-like and the length was about 500 nm.(2)When the dosage of NH_(2)-MIL-101(Al) was 2 g/L,the adsorption reaction time was 2 h,pH=6.00~8.00,temperature was about 30℃,the removal rate of phosphorus on an initial concentration of 2.0 mg/L can reach 94.5%by the material,the adsorption process of phosphorus in water conforms to the pseudo-second-order kinetics and Langmuir model by the material.(3)The synthesized material was applied to the removal of phosphorus in actual water,and the removal rate was 23.7%.According to the results of a series of experiments,NH_(2)-MIL-101(Al) has certain application potential for phosphorus removal by the adsorption.

关 键 词：NH_(2)-MIL-101(Al) 金属有机框架材料 吸附法 磷污染 溶剂热法 

分 类 号：TQ351.2[化学工程]