检索结果-南通市图书馆

Current Research and Strategy on the Biosurfactants Used in the remediation of Petrochemical Polluted Environment

Meteorological and environmental Research 2014年第2期5卷 59-62页

作者： Cheng Shuiming Liu Jiefeng Lu Yan Tan Liquan Zhou Tian Department of Biological Engineering Guangdong University of Petrochemical Technology

Biosurfactants are biologically active metabolites, and the efficiency of direct screening of new biosurfactants from nature using traditional methods is low, which should be enhanced in the following studies by adopting advanced biotechnologies. Rapid development and wide application of microbial culture independent methods, such as metagenomics, metatranscriptomics, metaproteomics and metabonomics, etc., contributes to quickly and precisely screening of novel biological surfactants. We mainly represented the current status of research and applications of biosurfactants in the remediation of petrochemical polluted environment, and also prospected avenues for future research.

关键词： Biosurfactants Petrochemical pollution environmental remediation Uncultured microbial technology China

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

Visible Light Driven Cu2O-Based Micromotors

Visible Light Driven Cu2O-Based Micromotors

引用

中国化学会第十七届全国胶体与界面化学学术会议

作者： Xiao Chen Hongbin Ge Wenjuan Liu College of Materials Science and Engineering Nanjing Tech University

Light-driven micromachine is emerging as promising candidate in micro/nanomotor *** one kind of colloidal particle,it can spontaneously convert light energy in the environment into kinetic energy to complete autonomous ***,most of the conventional inorganic-oxide-based photocatalytic micromotors reported so far use wide bandgap photocatalytic materials such as Ti O and ZnO as substrates,which need to be activated by ultraviolet light,and consequently limits their applications in environmental and biological *** a typical p-type narrow bandgap semiconductor functional material,CuO exhibits excellent photoelectric effect,bacteriostatic and photocatalytic performance with visible light *** this work,we synthesis CuO microparticles by liquid phase reduction method,and modify the surface to design CuO-Au Janus spherical micromotors and CuO@g-CN core/shell structure *** adjusting the wavelength and intensity of the light source and selecting different concentrations of hydrogen peroxide and glucose as chemical fuel,the optical-drive performances of micromotors under different conditions are ***,such micromotors display photodegradation capacity of methyl orange solutions under visible light irradiation and have a great potential for repairing environment.

关键词： Micromotors Visible light Cuprous oxide Graphitic carbon nitride environmental remediation

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

ZnO nanorods with enhanced photocatalytic activity and high photostability under visible light and UV light irradiation

ZnO nanorods with enhanced photocatalytic activity and high ...

引用

中国化学会第九届全国无机化学学术会议

作者： Zhonghua Wang Ni Huang Jinxia Shu College of Chemistry and Chemical Engineering China West Normal University

Zinc oxide(ZnO) nanostructures with different morphologies, including nanorods, nanospheres and nanosheets, were prepared by a simple, one-step method via the pyrolysis of zinc acetate, zinc oxalate and zinc nitrate, respectively. The as-prepared ZnO nanostructures were characterized by X-ray powder diffraction(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray photoelectron spectroscopy(XPS) and UV-visible diffuse reflectance spectroscopy(DRS). The photocatalytic activities of the ZnO nanostructures were evaluated by the photodegradation of two typical organic dyes, rhodamine B(Rh B) and methyl orange(MO). It was found that the ZnO nanorods exhibited the highest photocatalytic activity among the three ZnO nanostructures under both visible light and UV-visible light irradiation. Furthermore, the ZnO nanorods photocatalyst also showed excellent photostability and reusability under visible and UV-visible light irradiation. In addition, mechanism studies by using active species trapping experiments suggested that hydroxyl radicals(·OH), photoinduced holes(h+) and superoxide anion radicals(·O-2) were involved in the photocatalytic process. The ·O-2played a major role under visible light irradiation, whereas the ·OH was the main active species under UV light irradiation. A possible mechanism for the charge separation and organic dye pollutants degradation was proposed.

关键词： ZnO nanostructures photocatalytic activity photostability organic pollutants environmental remediation

来源： cnki会议评论

在线全文

cnki会议

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

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

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：