以箬叶“炭”究Cr(Ⅲ)和Cr(Ⅵ)的检测与吸附综合实验  

Comprehensive Experiment of Detection and Absorption of Cr(Ⅲ)and Cr(Ⅵ)with"Carbon"of the Indocalamus Leaf

作　　者：张蕾[1,2] 肖长生[1,2] 苏明伟[1,2] 张洪权 ZHANG Lei;XIAO Chang-sheng;SU Ming-wei;ZHANG Hong-quan(School of Chemistry and Life Science,Hubei University of Education,Wuhan 430205,China;Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients,Wuhan 430205,China)

机构地区：[1]湖北第二师范学院化学与生命科学学院,武汉430205 [2]湖北第二师范学院植物抗癌活性物质提纯与应用湖北省重点实验室,武汉430205

出　　处：《湖北第二师范学院学报》2024年第8期20-26,共7页Journal of Hubei University of Education

基　　金：2017年度湖北省教育厅科学研究计划指导性项目“α-Fe2O3的可控合成及其光降解燃料的机理研究”(B2017202);湖北第二师范学院教学改革项目“基于创新型人才培养的开放式无机化学实验教学探索与研究”(X2018084);“以省级重点实验室为平台培养大学生科技创新能力实证研究”(X2021003);“QBD理念结合PBL教学模式在药剂学实验教学中的应用”(X2023049)。

摘　　要：本文以“科教融合”为导向,以湖北鹤峰的箬叶为原料,制备生物质炭和碳量子点并进行基本表征,以生物质炭吸附Cr(Ⅲ)和Cr(Ⅵ),以荧光淬灭法检测Cr(Ⅲ)和Cr(Ⅵ),吸附和检测过程绿色环保。结果表明生物质炭吸附Cr(Ⅲ)的吸附符合颗粒内扩散模型,吸附Cr(Ⅵ)符合准二级动力学模型,二者均为自发吸热过程。作为本科生综合教学实验,本实验不仅涉及多种无机化学、分析化学、物理化学、仪器分析的理论知识,还包含了制备、表征、数据处理、吸附机制分析等重要环节,同时融入了文化自信、地域文化和绿色化学等课程思政理念。该创新实验教学时长约为24小时,适合用于综合化学实验教学,实现了基础化学理论在实践中的有效应用,提升了化学专业学生的综合能力。Guided by integration of science and education,the biocarbon and carbon quantum dots were prepared and characterized by the indocalamus leaf of Hefeng,Hubei Province.Indocalamus carbon was used to adsorb Cr(Ⅲ)and Cr(Ⅵ),and Cr(Ⅲ)and Cr(Ⅵ)were detected by Fluorescence quenching.The adsorption and detection process is environmentally friendly.The results show that adsorption of Cr(Ⅲ)conforms to the Weber-Morris model and the adsorption of Cr(Ⅵ)conforms to the quasi-secondary kinetic model by the biomass carbon.Both of them are spontaneous endothermic processes.As a comprehensive teaching experiment for undergraduates,this experiment involves a variety of theoretical knowledge of inorganic chemistry,analysis chemistry,physics chemistry and instrument analysis,includes important links such as preparation,characterization,data processing and adsorption mechanism analysis.Meanwhile,it also incorporates the ideological and political ideas of cultural self-confidence,regional culture and green chemistry.The innovative experiment teaching lasts about 24 hours,which is suitable for experiment teaching of comprehensive chemistry.It realizes the effective application of basic chemistry theory in practice and improves the comprehensive ability of chemistry major students.

关 键 词：箬叶 生物质炭 碳量子点 Cr(Ⅲ)和Cr(Ⅵ) 检测与吸附 

分 类 号：G642.423[文化科学—高等教育学] O6-3[文化科学—教育学]