Bifunctional nanozyme activities of layered double hydroxide derived Co-A1-Ce mixed metal oxides for antibacterial application

IOCAS-IR

	Bifunctional nanozyme activities of layered double hydroxide derived Co-A1-Ce mixed metal oxides for antibacterial application
	CHEN Chao; WANG Yi; ZHANG Dun
发表期刊	Journal of Oceanology and Limnology
ISSN	2096-5508
	2020-07-15
出版年	2020
卷号	v.38 期号:04 页码:376-388
文献类型	CNKI期刊论文
摘要	Marine biofouling is an expensive problem that needs evolved chemical or physical antifouling strategies.However,most of the current antifouling materials that would damage the environment through metal leaching and bacteria resistance are being halted.Nanozyme is one kind of environmental antifouling materials through generating reactive oxygen species(ROS).We prepared various contents of CeO__2 that could uniform disperse compounding with Co__(3 O)__4 and CoAl__2 O__4 to form a stable Co-Al-Ce mixed metal oxide(MMO) by a layered double hydroxide derived method.We find that coupling with CeO__2 can improve the peroxidase(POx) activity.When the molar ratio of Ce is 2.5% and the calcination temperature is 200~℃,the POx activity of Co-Al-Ce MMO is the best caused by the good dispersion of catalytically active components and the high specific area(150.10±4.95 m~~2/g).This novel Co-Al-Ce MMO also exhibits an antibacterial mode of action Gram-negative bacteria in near-neutral pH solution through generating ROS(mainly ·O_2~-)in the presence of H__(2 O)__(2.)Ce containing MMO can be utilized as potential green marine antifouling material.
关键词	mixed metal oxide ceria enzyme mimic antibacterial marine biofouling
CNKI专辑号	A;B;
CNKI专辑名称	基础科学;工程科技Ⅰ辑;
CNKI专题号	A010;B014;B020;
CNKI专题名称	海洋学;化学;材料科学;
分类号	O614.332;TB383.1;P75
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No.XDA23050104) ; the National Natural Science Foundation of China (Nos.41776090 ; 41976032) ; the Key Research and Development Program of Shandong Province (No.2018GHY115038) ; the AoShan Talent Program Supported by Qingdao National Laboratory for Marine Science and Technology
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/188141
专题	中国科学院海洋研究所
作者单位	1.CASKeyLaboratoryofMarineEnvironmentalCorrosionandBio-fouling,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.OpenStudioforMarineCorrosionandProtection,QingdaoNationalLaboratoryforMarineScienceandTechnology 4.CenterforOceanMega-Science,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	CHEN Chao,WANG Yi,ZHANG Dun. Bifunctional nanozyme activities of layered double hydroxide derived Co-A1-Ce mixed metal oxides for antibacterial application. 2020.