SiO_(2)@NiO核壳材料的制备、结构表征及其对亚甲基蓝的吸附性能——介绍一个研究性综合实验  

Preparation,Structural Characterization and Adsorption Properties for Methylene Blue of SiO_(2)@NiO Core-Shell Materials——Introduction of a Chemical Research-Type Comprehensive Experiment

作　　者：梁攀 李连庆 周颖楠 Liang Pan;Li Lianqing;Zhou Yingnan(School of Chemistry&Chemical Engineering,Shaanxi Xueqian Normal University,Xi′an,Shaanxi 710100,China)

机构地区：[1]陕西学前师范学院化学化工学院,陕西西安710100

出　　处：《化学世界》2024年第6期392-397,共6页Chemical World

基　　金：国家自然科学基金(No.22003035);陕西学前师范学院教学改革研究(No.24JG08CJ);陕西学前师范学院《结构化学》一流课程和陕西学前师范学院创新团队资助项目。

摘　　要：介绍一个综合实验——SiO_(2)@NiO核壳材料的制备、结构表征和SiO_(2)@NiO核壳材料对亚甲基蓝(MB)吸附性能的研究。实验结合共沉淀法、水热法和热解法制备了SiO_(2)@NiO核壳材料,借助热重分析(TGA)、X射线粉末衍射(XRD)和扫描电子显微镜(SEM)等仪器对材料进行了结构表征,并利用紫外分光光度计(UV-Vis)测其对亚甲基蓝的吸附性能,并分析其吸附机理。通过该实验的设计与实施,使学生在掌握基本实验技能的同时,能够结合基础理论知识解释实验原理和分析实验现象,进一步提升学生的科学研究思维和综合运用知识的能力。A comprehensive experiment is introduced——the preparation and structural characterization of SiO_(2)@NiO core-shell material and the adsorption studies on methyl blue(MB).The SiO_(2)@NiO core-shell materials were prepared by a combination of co-precipitation,hydrothermal and high-temperature calcination methods.The materials were characterized by Thermogravimetric analysis(TGA),Scanning electron microscope(SEM),X-ray diffraction(XRD),et al.The experiment of adsorption of methylene blue was measured by UV/Vis spectroscopy for the discussion on the degradation of MB.Through the design and implementation of this experiment,while mastering basic experimental skills,students can combine basic theoretical knowledge for explaining experimental principles and analyzing experimental phenomena,and further improving students’scientific research thinking and ability to comprehensively apply knowledge.

关 键 词：研究性综合实验 SiO_(2)@NiO 核壳结构 吸附 

分 类 号：O611.62[理学—无机化学] O613.3[理学—化学]