NiFe_(2)O_(4)/BiOCl复合材料的制备及光催化降解甲基橙综合实验设计  

Comprehensive experimental design on preparation of NiFe_(2)O_(4)/BiOCl composites and photocatalytic degradation of methyl orange

作　　者：程秋实 李永前 陈学敏 李发堂[1] CHENG Qiushi;LI Yongqian;CHEN Xuemin;LI Fatang(College of Science,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学理学院,河北石家庄050018

出　　处：《实验技术与管理》2022年第2期40-44,共5页Experimental Technology and Management

基　　金：河北省自然科学基金青年科学基金项目(B2018208093);国家自然科学基金青年科学基金项目(51802075);河北省高等学校青年拔尖人才项目(BJ2019002)。

摘　　要：该文设计了基于低温水浴法制备NiFe_(2)O_(4)/BiOCl复合光催化剂的综合实验,通过X射线衍射、X射线光电子能谱、扫描电子显微镜等对样品进行了物相及形貌分析,并以可见光下甲基橙(MO)的降解程度评价其光催化活性。结果表明,当NiFe_(2)O_(4)质量百分数为2%时,所得复合纳米材料的光催化活性最优,甲基橙在105 min时降解率达到了80.62%。该实验设计简单,涵盖了复合材料的合成、测试表征及光催化性能评价等知识点,便于学生理解材料结构与性能的关系,同时能够提升学生的科研创新意识和综合实践能力。A comprehensive experiment based on the low temperature water bath method is designed to prepare the NiFe_(2)O_(4)/BiOCl composite photocatalysts. The phase and morphology of the composites are analyzed by X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy, etc. The catalytic activity is investigated by the degradation degree of methyl orange(MO) under visible light. The results show that the photocatalytic activity of the as-obtained composites with the mass portion of 2% NiFe_(2)O_(4)is the best and the degradation of MO reaches 80.62% in 105 min. The experimental design is simple and covers the knowledge points of composite synthesis, test characterization and photocatalytic performance evaluation. It is convenient for students to understand the relationship between the structure and properties of materials, and can improve students’ awareness of scientific research innovation and comprehensive practical ability.

关 键 词：NiFe_(2)O_(4)/BiOCl 磁性复合材料 低温水浴法 光催化剂 综合实验 

分 类 号：TB321[一般工业技术—材料科学与工程] G642.423[文化科学—高等教育学]