检索结果-南通市图书馆

TiO_(2)photocatalytic ceramic membranes for water and wastewater treatment:Technical readiness and pathway ahead

Journal of Materials Science & Technology 2024年第16期183卷 152-164页

作者： Chin Ho Kirk Peikui Wang Chiang Yon Douglas Chong Qi Zhao Jianguo Sun John Wang Department of Material Science and Engineering Faculty of EngineeringNational University of Singapore117574Singapore Department of Chemistry University of SherbrookeCanada ST Engineering Advanced Material Engineering Pte.Ltd. 619523Singapore National University of Singapore(NUS)Research Institute(Chongqing) Chongqing Liang Jiang New AreaChongqing401120China

TiO_(2)is one of the best-known environmentally friendly photocatalysts that has demonstrated the great potential to degrade a wide variety of organic foulants in water and wastewater treatment when placed under UV ***,TiO_(2)-based photocatalytic membranes are at the forefront of photodegra-dation research and technical *** membrane setup provides a high contact surface area for ef-fective filtration and degradation,without the necessary hassle of photocatalyst recovery after water and wastewater ***,TiO_(2)photocatalytic ceramic membranes have become an emerging re-search area due to the inherent chemical and mechanical stability of ceramic membranes,which enables them to outperform polymeric *** the recent shift from polymeric to ceramic membranes in industrial applications,TiO_(2)photocatalytic ceramic membranes will become a key player among the next-generation ceramic membranes,as they are capable of multiple *** review provides a timely and focused investigation into the fabrication and application of such TiO_(2)photocatalytic ceramic membranes for water and wastewater *** benefits of using photocatalytic ceramic membranes in filtration,such as a higher foulant removal efficiency,higher water permeability,and much improved antifouling capabilities,are highlighted and ***,the current research,technical readiness,and remaining gaps are identified,and a set of critical insights are provided using the available data to guide the developmental pathway of practical TiO_(2)photocatalytic ceramic membranes for water and wastewater treatment.

关键词： water treatment Photocatalytic ceramic membranes Antifouling Titanium dioxide(TiO_(2))

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

Self-powered electrochemical water treatment system for pollutant degradation and bacterial inactivation based on high-efficient Co(OH)_(2)/Pt electrocatalyst

引用

Nano Research 2023年第2期16卷 2192-2198页

作者： Zhuo Wang Xi Liang Zhirong Liu Tian Huang Shaobo Wang Shuncheng Yao Yiming Ding Jiaming Zhang Xingyi Wan Zhong Lin Wang Linlin Li Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 101400China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China Center on Nanoenergy Research School of physical Science and TechnologyGuangxi UniversityNanning 530004China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332-0245USA

Electrochemical system with electro-Fenton reaction is an effective pathway for oxidative degradation of refractory organic pollutants for water ***,the method is limited by the low catalytic efficiency and high electrical cost in practical *** work presents a self-powered and high-efficient electrochemical system for water treatment including pollutant degradation and bacterial inactivation,which is composed of a self-powered triboelectric nanogenerator(TENG)converting mechanical energy into electrical energy,a power management circuit integrated with a supercapacitor to store the harvesting electrical energy temporarily,and an electrochemical setup integrated with two-dimentional Co(OH)_(2)/Pt nanosheet as *** nanocatalyst,ultrafine Pt nanoparticles(Pt NPs)loaded on Co(OH)_(2) nanosheet(Co(OH)_(2)/Pt),is synthesized by a facile one step hydrothermal reaction without any surfactant,which can improve H_(2)O_(2)and hydroxyl radical production via redox *** self-powered electrocatalytic system is able to degrade nearly 100%of organic pollutant within 100 min,and efficiently kill *** work shows great potential to develop high-efficient and self-powered electrochemical water treatment system through integrating TENG and nanocatalyst.

关键词： triboelectric nanogenerator electro-catalysis self-powered water treatment nanocatalyst

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

Atomic regulations of single atom from metal-organic framework derived carbon for advanced water treatment

引用

Nano Research 2023年第7期16卷 10326-10341页

作者： Xiang Li Bo Wang Key Laboratory of Cluster Science Ministry of Education Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsAdvanced Technologies Research Institute(Jinan)Advanced Research Institute of Multidisciplinary ScienceSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyNo.5South StreetZhongguancunHaidian DistrictBeijing 100081China

Single atom(SA)-embedded nitrogen-doped carbon has shown great potential in environmental ***,engineered nanomaterials(ENMs)have attracted great research interests in recent ***-organic framework(MOF)derived SAs show the advantages of tunable topology and averaged separated active *** bridge the gap between homogeneous and heterogeneous *** reaction efficiency can be significantly improved by designing the MOFs derived from carbon and *** this review,the research advanced in MOFs-derived carbon and SAs in advanced oxidation process(AOP)in water were *** strategies to fabricate the SAs derived from MOFs were discussed,including the mixed/single metal strategy,metal-containing linker strategy,pore confinement strategy,thermal diffusion strategy,and pyrolysis MOFs with bulk *** characterization technologies have been introduced,including electron microscopy and spectroscopic *** explain the catalytic mechanism for various applications,the relationship between the performance and the atomic configuration was systematically *** applications of the MOFs derived from carbon and SAs have been summarized.A series of the latest work on effectively removing pollutants by SAs are also *** on the fundamental knowledge and recent practical application of MOFs-derived carbon and SAs,some perspectives on the further directions were *** review offers guidance for applying novel engineered nanomaterials in the water treatment field.

关键词： single-atom catalysts(SACs) engineered nanomaterials(ENMs) metal-organic framework(MOF) MOFs derived carbon water treatment

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

Application potential of carbon nanotubes in water treatment:A review

引用

Journal of Environmental Sciences 2013年第7期25卷 1263-1280页

作者： Xitong Liu Mengshu Wang Shujuan Zhang Bingcai Pan State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University

water treatment is the key to coping with the conflict between people＇s increasing demand for water and the world-wide water shortage. Owing to their unique and tunable structural, physical, and chemical properties, carbon nanotubes （CNTs） have exhibited great potentials in water treatment. This review makes an attempt to provide an overview of potential solutions to various environmental challenges by using CNTs as adsorbents, catalysts or catalyst support, membranes, and electrodes. The merits of incorporating CNT to conventional water-treatment material are emphasized, and the remaining challenges are discussed.

关键词： carbon nanotube adsorption catalysis membrane water treatment

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

Advances in graphene oxide membranes for water treatment

引用

Nano Research 2022年第7期15卷 6636-6654页

作者： Fengchun Jia Xiao Xiao Ardo Nashalian Sophin Shen Liu Yang Zhenyang Han Huaijiao Qu Tianmei Wang Zhi Ye Zhijun Zhu Linjun Huang Yanxin Wang Jianguo Tang Jun Chen Institute of Hybrid Materials National Center of International Research for Hybrid Materials TechnologyNational Base of International Science&Technology CooperationCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Department of Bioengineering University of CaliforniaLos AngelesCalifornia 90095USA

Graphene oxide(GO),a derivative of graphene,is a novel carbon material that has attracted a lot of attention in the field of membrane materials as its ability to achieve layer-by-layer stacking and the formation of nanochannels between the lamellae makes it excellent for selective separation of *** this paper,the separation mechanism of the GO membrane is *** to the different separation substances,the separation mechanism of graphene oxide membrane is reviewed from two aspects of metal ions and organic ***,the preparation methods of graphene oxide membranes is introduced,such as spin-coating,vacuum filtration,dip-coating,spraying,and layer-by-layer self-assembly,followed by a review on the structural regulation of ***,this paper concludes with an overview of the potential development prospects and challenges of GO membranes.

关键词： graphene oxide membrane technology structural modulation separation mechanism water treatment

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

Enhancing photocatalytic performance by constructing ultrafine TiO2 nanorods/g-C3N4 nanosheets heterojunction for water treatment

引用

Science Bulletin 2018年第11期63卷 683-690页

作者： Shiliang Luan Dan Qu Li An Wenshuai Jiang xiang Gao Shixin Hua Xiang Miao Yuanjing Wen Zaicheng Sun Beijing Key Laboratory for Green Catalysis and Separation.Department of Chemistry and Chemical Engineering School of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China State Key Laboratory of Luminescence and Applications.Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of Sciences.Changchun 130033China University of Chinese Academy of Sciences Beijing 100049China

Photocatalysis is considered to be a clean, green and efficient method to purify water. In this report, we first developed a highly efficient ultrafine TiO2 nanorods/g-C3N4 nanosheets （TiO2 NR/CN NS） composites via a simple hydrothermal method. Tiny TiO2 nanorods （diameter：～1.5 nm and length：～8.3 nm） were first loaded in situ on the CN NS by adding graphitic carbon nitride （g-C3N4） to the reaction solution. The TiO2 NR/CN NS composites present high charge separation efficiency and broader light absorbance than P25 TiO2. Furthermore, we illustrate that the TiO2 NR/CN NS catalyst possesses high performance for the photocatalytic degradation of the common and stubborn pollutants in water, such as the rhodamine B （RhB） dye and phenol. Under visible light （λ 〉 420 nm） irradiation, the apparent rate of the TiO2 NR/CN NR is 172 and 41 times higher than that of the P25 TiO2 and TiO2 NR, respectively. Additionally, we speculated that the heterojunction formed between TiO2 NR and CN NS, which is the basis for the experiments we have designed and the corresponding results. We demonstrated that reactive oxidative species such as superoxide anion radical and holes play critical roles in the degradation, and the hydroxyl radical contributes nothing to the degradation.

关键词： Heterojunction Photocatalyst TiO2 nanorods g-C3N4 nanosheets water treatment

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

Characteristics of Electrode-water-Electrode Discharge and its Application to water treatment

引用

Plasma Science and Technology 2014年第5期16卷 479-485页

作者：王小平李中坚张兴旺雷乐成 Key Laboratory of Biomass Chemical Engineering of Ministry of Education Department of Chemical and Biological EngineeringZhejiang University

Atmospheric air discharge above the surface of water is an effective method for water *** leakage current and Joule heating of water are reduced by the air gap,which raises the energy efficiency of the water ***,the application of this kind of discharge is limited by a pair of conflicting factors：the chemical efficiency grows as the discharge gap distance decreases,while the spark breakdown voltage decreases as the gap distance *** raise the spark breakdown voltage and the chemical efficiency of atmospheric pressure water surface discharge,both the high-voltage electrode and the ground electrode are suspended above the water surface to form an electrode-water-electrode discharge *** this system,there are two potential discharge directions：from one electrode to another directly,and from the electrodes to the water *** first step in utilizing the electrode-water-electrode discharge is to find out the discharge direction transition *** this paper,the discharge direction transition criterions of spark discharge and streamer discharge are *** comparing the discharge characteristics and the chemical efficiencies,the discharge propagating from the electrodes to the water surface is proved to be more suitable for water treatment than that propagating directly between the electrodes.

关键词： water treatment electrode-water-electrode discharge discharge direction discharge intensity chemical efficiency

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

Three-Dimensional Hierarchical Structures of ZnO Nanorods as a Structure Adsorbent for water treatment

引用

Journal of Materials Science & Technology 2017年第8期33卷 864-868页

作者： Zhendong Li Yingjie Huang Xingfu Wang Dan Wang Xinfu Wang Fusheng Han Key Laboratory of Materials Physics Institute of Solid State PhysicsChinese Academy of SciencesHefei 230031China

Three-dimensional（3D） ZnO nanorods with good adsorption property was successfully fabricated via a facile hydrothermal method, and characterized by scanning electron microscopy（SEM）, X-ray diffraction（XRD）, Energy Dispersive X-ray spectrometer（EDX） and a UV-vis spectrophotometer. It was found that the ZnO nanorods with a diameter of 0.5 μm and the length of 10 μm were firmly grown on the struts of the open-cell aluminum foams, and the 3D hierarchical structured adsorbent Zn O nanorods/Al foam（r-ZnO/AF） exhibits a higher adsorption capacity for Brilliant Blue R（BBR） in aqueous solutions, more stable sorption regenerable behavior and solid–liquid separability in contrast to the corresponding n-ZnO powder sample. The kinetics of the adsorption process was also discussed.

关键词： Structured adsorbent Open-cell aluminum foam Zinc oxide water treatment

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

Removal of cyclops in pre-oxidizing cooperation water treatment process

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第11期8卷 1826-1830页

作者： LIU Dong-mei CUI Fu-yi WU Ya-qin LIN Tao ZHANG Min YU Ming-xue School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China State Key Laboratory of Urban water Resource and Environment Harbin 150090 China College of Environmental Science and Engineering Hohai University Nanjing 210098 China

Zooplankton cyclops propagates profusely in waterbody, cannot be effectively inactivated by conventional disinfection process, and becomes a troublesome drinking water treatment problem. In this work, the qualitative and quantitative experimental studies were carried out on inactivation of zooplankton cyclops using oxidants, such as chlorine （Cl2）, chlorine dioxide （ClO2）, ozone （O3）, hydrogen peroxide （H2O2）, ozone/hydrogen peroxide （O3/H2O2）, chloramines （Cl2-NH3） and potassium permanganate （KM4nO4）. The influences of various factors include different oxidant dosages, organic substance contents and pH values. The results showed that currently available oxidants used all might inactivate cyclops in some extent. According to the experimental results, chlorine dioxide, ozone, ozone/hydrogen peroxide and chloramines can be selected as effective oxidants for inactivating cyclops because of their strong inactivation abilities. Then the synergic removal effects on cyclops with ozone, ozone/hydrogen peroxide pre-oxidation followed by conventional water treatment processes were investigated, The results showed that ozone and ozone/hydrogen peroxide pre-oxidation can inactivate cyclops effectively, which then can be removed thoroughly by conventional water treatment processes. Cyclops cannot appear in water after filtration with 1.65 mg/L of ozone and 6 mg/L of hydrogen peroxide, with the inactivation rate being 62% before conventional water treatment processes. Cyclops cannot appear in water after filtration with 1.8 mg/L of ozone, with the inactivation rate being 50% before conventional water treatment processes. For different oxidants, when removal rate was the best, the inactivation rate was not the same. These results may provide reference and model for actual waterworks.

关键词： Cyclops of zooplankton water treatment Inactivation 03 O3/H2O2 pre-oxidation

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

Catalytic Effect of Activated Carbon and Activated Carbon Fiber in Non-Equilibrium Plasma-Based water treatment

引用

Plasma Science and Technology 2008年第3期10卷 358-362页

作者：张延宗郑经堂曲险峰于维钊陈宏刚 State Key Laboratory of Heavy Oil Processing China University of PetroleumDongying 257061 China

Catalysis and regeneration efficiency of granular activated carbon （GAC） and activated carbon fiber （ACF） were investigated in a non-equilibrium plasma water treatment reactor with a combination of pulsed streamer discharge and GAC or ACF. The experimental results show that the degradation efficiency of methyl orange （MO） by the combined treatment can increase 22% （for GAC） and 24% （for ACF） respectively compared to pulsed discharge treatment alone, indicating that the combined treatment has a synergetic effect. The MO degradation efficiency by the combined treatment with pulsed discharge and saturated GAC or ACF can increase 12% and 17% respectively compared to pulsed discharge treatment alone. Both GAC and ACF show catalysis and the catalysis of ACF is prominent. Meanwhile, the regeneration of GAC and ACF are realized in this process. When H202 is introduced into the system, the utilization efficiency of ozone and ultraviolet light is improved and the regeneration efficiency of GAC and ACF is also increased.

关键词： non-equilibrium plasma water treatment activated carbon activated carbon fiber catalytic effect

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

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

在线全文

在线全文

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

在线全文

在线全文

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：