MIL-125基复合材料制备及光电催化性能综合实验教学设计

Experimental Teaching Design on Preparation,Characterization and Photoelectrocatalytic Performance of MIL-125-based MOFs

在“双碳”战略目标下,新能源开发、利用受到广泛关注。为此设计了一个以2-氨基对苯二甲酸为配体的金属-有机框架材料(MIL-125 MOFs),并用于电解水产氢和处理污染物的综合性实验。通过表面活性剂辅助法制备了系列MIL-125 MOFs材料,并利用X-射线粉末衍射仪、红外光谱、扫描电镜等表征了其结构与形貌。电化学测试表明制备的材料可显著降低电解水过电位,加快析氢速率;其与聚乳酸(PLA)混合制备的复合薄膜,在自然光下可有效降解水体中的罗丹明B(RhB)和抗生素。实验涵盖材料制备、表征及光电催化测试,可以使学生掌握多种实验技能,促进学生对新技术的认识,增强学生的创新能力与解决问题的能力,从而提升学生的创新思维和综合素质。

The development and utilization of new energy has received wide attention under the dual carbon strategy goals.Herein,we design a comprehensive experiment on the preparation,characterization and photoelectrocatalytic performance of MIL-125-based MOFs with 2-amino terephthalic acid.The MIL-125-based MOFs material is obtained via a facile surfactant-assisted solvothermal method.These as-prepared material is used as electrocatalysts for water splitting and photocatalytic degradation of dye and antibiotics.The results show that MIL-125-based MOF nanomaterial has high electrocatalytic activity for water splitting with low overpotential,in addition,the MIL-125/polylactic acid composite films can effectively degrade rhodamine B and antibiotics under sun-light.This comprehensive experiment can greatly increase undergraduates’sense of the energy crisis and environmental pollution,improve their abilities of the scientific innovation and solving practical problems,and stimulate their independent thinking and comprehensive scientific quality.