酶刻蚀制备超疏水材料及其油水分离性能分析的综合实验设计  

Comprehensive experimental design of enzyme etching to prepare superhydrophobic materials and evaluate oil-water separation performance

作　　者：刘海峰 刘英菊 禹筱元 肖勇 王伟贤 曾晖 LIU Haifeng;LIU Yingju;YU Xiaoyuan;XIAO Yong;WANG Weixian;ZENG Hui(College of Materials and Energy,South China Agricultural University,Guangzhou 510642,China;School of Chemical Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China)

机构地区：[1]华南农业大学材料与能源学院,广东广州510642 [2]中山大学化学工程与技术学院,广东珠海519082

出　　处：《实验技术与管理》2024年第9期213-221,共9页Experimental Technology and Management

基　　金：教育部产学合作协同育人项目(230907709274723);广东省一流本科课程建设项目(粤教高函〔2023〕33号,粤教高函[2020]16号);国家一流本科课程-新能源材料(2023241384);华南农业大学课程思政示范团队-无机及分析化学(华南农教〔2023〕1号)。

摘　　要：该文秉持绿色环保理念,利用酶的高效性,将酶刻蚀制备超疏水材料实验引入综合实验教学。实验通过纤维素酶刻蚀织物表面,再利用HDTMS对其低表面能进行改性,得到超疏水棉织物。实验结果表明,所制备的超疏水棉织物对所提供的5种油水混合物具有较好的分离效果,对粘度小、流动性好的油类分离效率可达95%以上。该综合实验设计方案注重提升学生的科研体验感,有利于激发学生的科研热情和探究兴趣。实验内容涉及多种化学学科理论知识的综合应用,有助于培养学生的科研素养和自主创新能力。[Objective]Comprehensive experiments play a crucial role in the teaching work in universities.In accordance with the characteristics of the school,disciplines,and talent cultivation requirements,constructing comprehensive experiments can help students understand the theoretical knowledge in textbooks and cultivate students’innovative thinking ability to solve problems independently.In comprehensive experiments,the scope of theoretical knowledge involved is extensive.For teachers,transforming their research achievements into comprehensive experimental teaching can not only organically connect teaching and research but also attract more students toward participating in innovative experiments.Further,this provides a broader enlightenment of scientific thinking.The rising global population,coupled with the increasing need for industrial development,has generated a significant amount of oily wastewater,which requires urgent treatment.This wastewater primarily stems from various domestic and industrial activities.Currently,traditional oil-water separation processes suffer from several shortcomings,including high operational costs,low separation efficiency,poor oil recovery,and adverse environmental impact caused by fluorine that is contained in some separation materials.In accordance with the concept of green and environmental protection,this paper introduces the preparation of superhydrophobic materials using enzyme etching into comprehensive experimental teaching by capitalizing on the high efficiency and mild reaction conditions of enzymes.This experiment successfully produced superhydrophobic cotton fabric and explored its application prospects in the field of oil-water separation.[Methods]In this comprehensive experiment,a micro-nano rough structure was introduced on the surface of the fabric through cellulase etching.By utilizing non-fluorinated reactions,superhydrophobic cotton fabric was successfully prepared through physical dipping and coating methods using a long-chain alkyl silane coupling agent(hexadecyl

关 键 词：纤维素酶 超疏水性 油水分离 实验设计 创新 

分 类 号：O6-3[理学—化学]