化工新型材料

化工新型材料 ›› 2021, Vol. 49 ›› Issue (1) : 135-138. DOI: 10.19817/j.cnki.issn 1006-3536.2021.01.030

科学研究

双亲模板制备Mb-g-C₃N₄生物复合材料及其性能研究

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Preparation and characterization of Mb-g-C₃N₄ biomaterial based on parent template method

He Yaping, Zhang Changhu, Xiao Haoyue, Han Quan, Yang Xiaohui, Huo Yanyan

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Received		Published
2019-09-10		2021-01-20
Issue Date	Revised Date
2021-01-27	2019-09-10

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摘要

采用两种方法制备g-C₃N₄:方法一,乙二胺和四氯化碳混合,加热回流,高温煅烧得到g-C₃N₄;方法二,将三聚氰胺高温分解得到g-C₃N₄。然后,以聚二烯丙基二甲基氯化铵和两亲物质聚苯乙烯-聚丙烯酸共聚(PS-b-PAA)为连接剂,得到了肌红蛋白类石墨烯复合材料Mb-g-C₃N₄。基于此,研究了肌红蛋白的直接电化学及电催化行为;采用红外光谱法、扫描电镜、X射线衍射和荧光光谱法对制备的g-C₃N₄进行形貌、晶型和结构的研究;采用循环伏安法研究Mb-g-C₃N₄/GCE催化性能。结果表明,Mb-g-C₃N₄/GCE电极电化学性能良好,对亚硝酸根的还原具有良好的催化效果。

Abstract

g-C₃N₄ is a metal-free polymer semiconductor with good conductivity,biocompatibility and specific surface area.g-C₃N₄ is a graphite-like lamellar structure,which is widely used in photocatalyst,catalyst carrier,sensor and other fields due to its non-toxic,good stability,visible light response and many other characteristics.Method 1: ethylenediamine and carbon tetrachloride were mixed,heated and refluxed,and calcined at high temperature to get g-C₃N₄.Method 2: high-temperature decomposition of melamine to get g-C₃N₄.Myoglobin graphene composites (Mb-g-C₃N₄) were prepared by copolymerization of polydiallyl dimethyl ammonium chloride and amphiphilic polystyrene-polyacrylic acid (PS-b-PAA).Based on this,the direct electrochemical and electrocatalytic behaviors of Mb were studied.When the sweep speed was 100 mV/s,the oxidation peak (Epa) was -0.149v,and the reduction peak (Epc) was -0.056v.The characterization methods included infrared spectroscopy,scanning electron microscopy,X-ray diffraction,fluorescence spectroscopy,and the study of the morphology,crystal shape and structure of the prepared g-C₃N₄.The catalytic performance of Mb-g-C₃N₄/GCE was studied by cyclic voltammetry.The results showed that the Mb-g-C₃N₄/GCE electrode had good electrochemical properties and good catalytic effect on the reduction of nitrite.

关键词

石墨相氮化碳 / 肌红蛋白 / 电化学 / 双亲模板法

Key words

g-C₃N₄ / Mb / electrochemisty / parent template method

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双亲模板制备Mb-g-C₃N₄生物复合材料及其性能研究[J]. 化工新型材料, 2021, 49(1): 135-138 DOI:10.19817/j.cnki.issn 1006-3536.2021.01.030

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基金资助

陕西省创新能力支撑计划(2018KJXX-090);陕西省科技厅项目(2020JQ-886、2018JM3036);陕西省教育厅项目(20JK0867);国家自然科学基金(21445004、21545014和21643014);西安市科技计划项目(2019KJWL13、2016CXWL09、2016CXWL18);陕西省大学生创新创业训练计划项目(201611080008、201613、2019066);陕西省教育厅重点实验室访问学者项目(14JS095);西安文理学院博士启动基金(06005017);陕西省分析化学重点学科资助(09009001);西安文理学院创新改革试点项目(2016105GG/ZT05(4))

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