介孔石墨相氮化碳载银光催化抗菌性能研究

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摘要以氯化铵为气泡模板,三聚氰胺为石墨相氮化碳前驱体,采用光沉积法构筑介孔石墨相氮化碳载银(Ag)(m-g-C₃N₄/Ag)催化剂。并对m-g-C₃N₄/Ag的晶体结构、化学组成和形貌进行表征。考察了Ag含量对m-g-C₃N₄/Ag光降解性能和抗菌性能的影响。研究结果表明,制得的m-g-C₃N₄/Ag具有介孔结构,随着催化剂中Ag含量的增多,光降解能力明显提升,Ag浓度为160mg/g的m-g-C₃N₄/Ag对甲基橙(MO)的降解效果最好,在降解35min条件下,最高降解率为82%。m-g-C₃N₄/Ag对铜绿假单胞菌的抗菌效果优于对大肠杆菌的抗菌效果。

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	刘姿铔
	董小梅
	张曼莹

关键词: 介孔石墨相氮化碳载银光降解抗菌性

Abstract: The mesoporous g-C₃N₄/Ag (m-g-C₃N₄/Ag) composites were obtained by photodeposition method employing ammonium chloride as gaseous bubble template and melamine as g-C₃N₄ precursor.The crystalline structures,molar structures and morphology were characterized.The effects of silver content on the photocatalytic performance and antibacterial activity of samples were studied.The results showed that the prepared catalysts had mesporous structure.The photocatalytic performances were promoted with the increase of Ag content.M-g-C₃N₄/Ag with Ag concentration of 160mg/g had the best degradation effect on MO.Under 35min degradation,the highest degradation rate was 82%.The antibacterial activity of m-g-C₃N₄/Ag to P.aeruginosa was more obvious than that to E.coli.

Key words: M-g-C₃N₄/Ag photodegradation antibacterial property

出版日期: 2019-03-20 发布日期: 2019-03-20 期的出版日期: 2019-03-20

基金资助: 国家自然科学基金青年基金(51508239);江苏省自然科学基金(BK20150245,BY2016030-01);江苏省研究生科研与实践创新计划项目(SJCX17-0772)

通讯作者: 张曼莹(1987-),女,博士,讲师,主要研究方向为抗污染膜材料制备及应用。

作者简介: 刘姿铔(1994-),女,硕士,主要研究方向为新型抗污染膜材料制备及应用。

引用本文:

刘姿铔,董小梅,张曼莹. 介孔石墨相氮化碳载银光催化抗菌性能研究[J]. 化工新型材料, 2019, 47(3): 172-176.
Liu Ziya, Dong Xiaomei, Zhang Manying. Ag modified m-g-C₃N₄ composite with photocatalytic and antibacteral performance. New Chemical Materials, 2019, 47(3): 172-176.

链接本文:

http://www.hgxx.org/CN/ 或 http://www.hgxx.org/CN/Y2019/V47/I3/172

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