检索结果-南通市图书馆

MnFe2O4@PANI@Ag Heterogeneous Nanocatalyst for Degradation of Industrial Aqueous Organic Pollutants

Journal of Materials Science & Technology 2016年第2期32卷 134-141页

作者： Md.Amir u.kurtan A.Baykal H.Sozeri Department of Chemistry Fatih UniversityCekmecelstanbul 34500 B.Turkey TuBITAK-uME National Merrology InstituteGebzeKocaeli 41470Turkey

This paper reports a stable heterogeneous nanoparticles catalyst MnFe2O4@PANI@Ag for the degradation of azo dyes. In this synthesizing method, MnFe204 is used as magnetic core and polyaniline （PANI） a linker to stabilize the Ag nanoparticles （NPs） on the surface of catalyst. The method has a high ability to prevent Ag NPs from aggregation on the PANI surface, thus resulting in small size and highly dispersed Ag NPs. The composition and nano-structural features of polycrystalline sample were studied by X-ray powder diffractometry, Fourier transform infrared spectroscopy, and scanning electron microsco- py. Vibrating sample magnetometer measurements proved the super-paramagnetic property of the catalyst, and uV results demonstrated that MnFe2O4@PANI@Ag has a high ability to reduce the azo dyes, which come from industrial wastes in the form of pollutant. The nanocomposites could be readily separated by magnet and reused for the next four reductions with high generation efficiency.

关键词： Ag NPs MnFe2O4 Magnetic nanocatalyst Catalytic degradation Azo dyes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fe_3O_4@Nico@Ag纳米催化剂催化硝基芳烃加氢(英文)

引用

催化学报 2015年第5期36卷 705-711页

作者： u.kurtan Md.Amir A.Baykal Department of Chemistry Fatih University

We report the fabrication and characterization of a magnetically recyclable Fe_3O_4@Nico@Ag catalyst for reduction reactions in the liquid phase. Fe_3O_4 is a magnetic core and nicotinic acid was used as the linker for Ag. The characterization was done with X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, vibrating sample magnetometry(VSM), and ultraviolet-visible spectroscopy. VSM measurements proved the superparamagnetic property of the catalyst.

关键词： Fe3O4 纳米催化剂银催化剂芳烃加氢傅立叶变换红外光谱扫描电子显微镜振动样品磁强计硝基

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fe_3O_4@Nico@Cu磁性可回收纳米催化剂的制备和用于偶氮染料还原（英文）

引用

催化学报 2015年第8期36卷 1280-1286页

作者： Md.Amir u.kurtan A.Baykal Department of Chemistry Fatih University

A novel method for synthesizing magnetically recyclable nanocatalyst Fe3O4@Nico@Cu(Nico = nicotinic acid) was introduced. The structural, morphological, and magnetic properties of the nanocatalyst were characterized by Fourier transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy, and vibrating sample magnetometry. Finally, Fe3O4@Nico@Cu was examined toward the hydrogenation of azo dyes methyl orange, methylene blue, eosin Y, and rhodamine B. The nanocatalyst showed excellent reusability properties that remained unchanged after several catalytic cycles. Therefore, the current findings show the potential of the prepared Fe3O4@Nico@Cu nanocatalyst as a candidate for application in the purification of organic aqueous pollutants for wastewater treatment.

关键词：纳米Fe3O4 还原合成偶氮染料回收铜铁磁性应用可回收傅里叶变换红外光谱

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Experimental and Computational Analysis of the Solution and Solid-State Conformations of Hexadepsipeptides from Beauveria felina

引用

Chinese Journal of Chemistry 2022年第3期40卷 378-384页

作者： Feng-Yu Du Attila Mandi Xiao-Ming Li Ling-Hong Meng Tibor kurtan Bin-Gui Wang CAS&Shandong Province Key Laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of Sciencesand Laboratory of Marine Biology and BiotechnologyQingdao National Laboratory for Marine Science and TechnologyNonhoi Rood 7QingdaoShandong 266071China College of Chemistry and Pharmacy Qingdao Agricultural UniversityQingdooShandong 266109China Department of Organic Chemistry University of DebrecenPOB 4004002 DebrecenHungary College of Marine Science University of Chinese Academy of SciencesYuquon Rood 19ABeijing 100049China Center for Ocean Mego-Science Chinese Academy of SciencesNonhoi Road 7t QingdaoShandong 266071China

Chemical investigation of Beouverio felina,a marine-derived entomopathogenic fungus,obtained two new destruxin hexadepsipeptides(1 and 2)containing an/.-Ala^(5)residue instead of the usual A/-Me-L-Ala^(5).Interestingly,the presence of the/.-Ala^(5)residue enabled two slowly-exchanging solution conformers with cis/trons(ILE^(3))-(A/-Me-Val^(4))amide bond for 1 and 2 with 1.5:1 and 1:1 cis/trans ratios,respectively,while only the conformer with c/s amide bond was found in the *** solution and solid-state conformers were studied by NMR,X-ray diffraction and solution and solid-state ECD measurements,as well as by TDDFT-ECD ***(conformational)parameter-activity correlations suggested that the extended destruxin geometry with the preferred c/s(ILE^(3))-(A/-Me-Val^(4))bond probably resulted in improved bioactivity and reduced toxicity for the destruxin *** was the first report on the interconversion phenomenon of cis/trans amide bonds of destruxin class,which could give insights in the development of bioactive destruxin agents with lower toxicity.

关键词： Beouveria felina Natural products Destruxin hexadepsipeptides Structure elucidation Conformation analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：