检索结果-南通市图书馆

Photoelectrocatalytic hydrogen evolution and synchronous degradation of organic pollutants by pg-C_(3)N_(4)/β-FeOOH S-scheme heterojunction

引用

Science China(Technological Sciences) 2024年第4期67卷 1238-1252页

作者： li xibao HAN Tao ZHOU YingTang XIE Yu LUO YiDan HUANG JunTong CHEN Zhi DENG Fang School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China National-Local Joint Engineering Research Center of Heavy Metal Pollutants Control and Resource Utilization Nanchang Hangkong UniversityNanchang 330063China Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control National Engineering Research Center for Marine AquacultureMarine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316022China

Crafting photoelectrocatalytic materials with robust oxidation-reduction properties for simultaneous hydrogen evolution and pollutant degradation poses a formidable *** this study,a pg-C_(3)N_(4)/β-FeOOH S-scheme heterostructure with a special energy band structure was developed by anchoring porous pg-C_(3)N_(4)on needle shapedβ-*** as a hole extraction layer,needle-leaf-likeβ-FeOOH can facilitate efficient hole migration and enhance charge ***,the optimized 0.2-pg-C_(3)N_(4)/β-FeOOH could degrade 78%of ofloxacin(OFLO)in 90 *** organic pollutants could absorb a large number of holes,which prompted a greater proportion of photogenerated electrons to actively participate in the hydrogen evolution reaction at the ***,the hydrogen production of 0.2-pg-C_(3)N_(4)/β-FeOOH reached 1452.88μmol cm^(-2)h^(-1),exhibiting a notable increase of 61.81-165.12μmol cm^(-2)h^(-1)compared with that in the absence of *** and theoretical calculation results underscore that this investigation is grounded in a distinctive electron and hole dual channel transfer *** findings offer novel insights for the future development of S-scheme heterojunction photoelectrocatalytic materials capable of concurrently degrading pollutants and promoting hydrogen evolution.

关键词： photoelectrocatalysis hydrogen evolution degradation synchronous S-scheme heterojunction

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

A facile strategy for large-scale production of 2D nanosheets exfoliated by three-roll milling

引用

Journal of Advanced Ceramics 2024年第1期13卷 11-18页

作者： Xin Wang Yang Xia Juntong Huang Yao Su Zhi Chen linlin Chen Zhaohui Wu Zhijun Feng Huiyong Yang xibao li School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China

Two-dimensional(2D)nanomaterials,such as graphene,MoS_(2),and MAX,have attracted increasing research attention in recent years due to their unique structural and performance ***,their complex production processes and equipment requirements are significant issues affecting their widespread ***,with an exfoliation strategy using three-roll milling,we present a simple,cost-effective,and extensible method to produce multilayer graphene,BN,MoS_(2),and Ti_(3)AlC_(2) *** roller and phenolic resin created three kinds of forces on the layered 2D materials,i.e.,shear forces,compressive forces,and adhesive forces,which exfoliated layered materials from their edges and surfaces into ***,the exfoliated materials were ultrasonically washed with alcohol,treated with ultrasonic vibration,and centrifuged to obtain 2D *** easy operation and high yield are attractive for research based on the construction of high-performance 2D nanosheet-based devices at low ***,the obtained multilayer graphene and MoS_(2) nanosheets were used as anode materials of sodium/potassium-ion batteries,respectively,to test their electrochemical *** performances are obtained compared with their primary bulk materials.

关键词： two-dimensional(2D)nanosheets exfoliation three-roll milling(TRM) sodium/potassium-ion batteries

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 Hydrogen Evolution through Electronic Structure and Wettability Adjustment of ZnIn2S4/Bi2O3 S-Scheme Heterojunction

引用

物理化学学报 2024年第8期40卷 50-63页

作者： linfeng Xiao Wanlu Ren Shishi Shen Mengshan Chen Runhua liao Yingtang Zhou xibao li School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403Jiangxi ProvinceChina Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control National Engineering Research Center for Marine AquacultureMarine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316022Zhejiang ProvinceChina School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China

The production of renewable fuels through water splitting via photocatalytic hydrogen production holds significant ***,the sluggish kinetics of hydrogen evolution and the inadequate water adsorption on photocatalysts present notable *** this study,we have devised a straightforward hydrothermal method to synthesize Bi_(2)O_(3)(BO)derived from metal‐organic frameworks(MOFs),loaded with flower-like ZnIn_(2)S_(4)(ZIS).This approach substantially enhances water adsorption and surface catalytic reactions,resulting in a remarkable enhancement of photocatalytic *** employing triethanolamine(TEOA)as a sacrificial agent,the hydrogen evolution rate achieved with 15%(mass fraction)ZIS loading on BO reached an impressive value of 1610μmol∙h^(−1)∙g^(−1),marking a 6.34-fold increase compared to that observed for bare ***,through density functional theory(DFT)and ab initio molecular dynamics(AIMD)calculations,we have identified the reactions occurring at the ZIS/BO S-scheme heterojunction interface,including the identification of active sites for water adsorption and catalytic *** study provides valuable insights into the development of high-performance composite photocatalytic materials with tailored electronic properties and wettability.

关键词： S-scheme Hydrogen evolution Wettability Photocatalysis Electronic structure

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

Manager Mobility and Private Equity Syndications from the Perspective of Coupling Networks:Evidence from China’s Private Equity Industry

引用

Journal of Social Computing 2023年第2期4卷 150-167页

作者： Jie Ren xibao li likun Cao the School of Economics and Management University of Science and Technology BeijingBeijing 100083China the School of Economics and Management Tsinghua UniversityBeijing 100084China the Division of Social Sciences University of ChicagoChicagoIL 60637USA

This study explores whether manager mobility can influence syndications between private equity(PE)firms by constructing coupling network *** data from China’s private equity market from 1993 to 2017,we found that driving forces,resistant forces,and network structure play significant roles in determining resource flows between PE ***,driving forces indicate that managers moving from domestic and foreign PE firms to state-owned PE firms are more likely to induce ***,if the manager is promoted when changing jobs,mobility is likely to enhance the flow of *** forces indicate that increased geographical distance reduces *** for the influence of structure,if managers leave PE firms with higher status,they are more likely to induce *** study contributes to the coupling network literature by providing a clarified three-factor *** exploring the characteristic of managers in state-owned private equity firms,we specified the syndication theory in *** study can help private equity firms hire valuable managers and expand syndication networks in practice.

关键词： manager mobility syndication coupling networks driving force resistance force network structure

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

Enhanced photocatalytic degradation and H_(2) evolution performance of N-CDs/S-C_(3)N_(4)S-scheme heterojunction constructed byπ-πconjugate self-assembly

引用

Journal of Materials Science & Technology 2022年第19期114卷 222-232页

作者： xibao li Qiuning Luo Lu Han Fang Deng Ya Yang Fan Dong School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051China CAS Center for Excellence in Nanoscience Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 611731China

Constructing heterojunction between two semiconductors with matched energy band structure is an effective modification method to obtain excellent *** experimental scheme adopts a simple solvent method to self-assemble nitrogen doped carbon dots(N-CDs)on the surface of sulfur doped carbon nitride(S-C_(3)N_(4))semiconductor throughπ-πconjugate *** on this,a novel 0D/2D S-scheme heterojunction N-CDs/S-C_(3)N_(4)hybrid was successfully *** degradation kinetic constants of N-CDs/S-C_(3)N_(4)for rhodamine B(RhB)and p-nitrophenol(PNP)reached 0.23522 and 0.01342 min^(−1),repectively,which were 2.72 and 2.65 times that of S-C_(3)N_(4).The highest photocatalytic hydrogen evolution rate was observed under the simulated sunlight irradiation,which was 2.30 times that of S-C_(3)N_(4).The improvement of photocatalytic performance was mainly based on the formation of the S-scheme heterojunction between S-C_(3)N_(4)and *** effects of internal electric field,π-πconjugate interaction and band bending promoted the photogenerated h^(+)and e^(−) with low redox ability to recombine and retained the beneficial h+and e−with strong redox ability,which contributed to the production of more active species of h^(+) and•O_(2)−,therefore the photocatalytic degradation and hydrogen evolution performance were significantly enhanced.

关键词： S-scheme Internal electric field Hydrogen evolution C_(3)N_(4) π–πinteraction

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

Patent Propensity in Small Technologybased Firms:Evidence from Zhongguancun Science Park

引用

China & World Economy 2010年第1期18卷 99-116页

作者： Delin Yang xibao li Jiagui Chen Associate Professor School of Economics and Management Tsinghua University Beijing China School of Economics and Management Tsinghua Uiversity Beijing China Chinese Academy of Social Sciences Beijing China

Using a survey administered in Zhongguancun Science Park in Beijing, China, this paper investigates the impact of R ＆D personnel-related intellectual property management practices on the patent propensity of small technology-based firms. It is found that R＆D personnel- related management practices, including training and reward mechanisms, are effective in enhancing a firm ＇s willingness to patent. In particular, we find that reward mechanisms can negatively moderate the effect of size on a firm ＇s willingness to patent. One implication that emerged from the analysis is that a small firm can counteract its size disadvantage in patenting by introducing a well-developed reward mechanism.

关键词： innovation surveys patent propensity reward mechanism science park

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

Effects of Y_(2)O_(3) and transition-metal nitrates on phase,microstructures and PL properties of N-containing Ce_(2)Si_(2.5)Al_(0.5)O_(3.5)N_(3.5) melilite

引用

Journal of Rare Earths 2021年第10期39卷 1282-1288,I0005页

作者： Meng Zhang Zhihui Hu Zhi Chen Juntong Huang Qingming Xiong Renming Shuai Zhijun Feng xibao li School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China

N-containing Ce_(2)Si_(2.5)Al_(0.5)O_(3.5)N_(3.5)(CeSiAlON) melilite was synthesized at 1550 and 1600℃ for 5 h from CeO_(2),Si,Al,and Al_(2)O_(3) in nitrogen by using Y_(2)O_(3) and transition-metal nitrates(Co(NO_(3))_(2)·6 H_(2) O and Ni(NO_(3))_(2)·6 H_(2)O) as *** effects of Y_(2)O_(3) and transition-metal nitrates on the phase,microstructures and photoluminescence properties of CeSiAlON melilite were *** incorporation of Y_(2)O_(3) can promote the reaction of raw materials to a low degree,and results in a unit cell shrinkage of CeSiAlON due to the smaller radius of Y atom than that of Ce *** transition-metal nitrates can accelerate the reaction clearly and facilitate the formation of CeSiAlON *** photoluminescence(PL) properties of CeSiAlON melilite presents a board violet emission band because of the 5 d-4 f transitions of Ce^(3+),and the additives can enhance the PL emission intensities of specimen significantly.

关键词： N-containing Ce_(2)Si_(2.5)Al_(0.5)O_(3.5)N_(3.5)melilite Y_(2)O_(3) Transition-metal nitrates Fiber Photoluminescence properties

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

Polydopamine nanolayer assisted internal photo-deposition of CdS nanocrystals for stable cosensitized photoanode

引用

Nano Research 2022年第10期15卷 8836-8845页

作者： Na li Lu Han Hainan Zhang Juntong Huang Xudong Luo xibao li Yuanhao Wang Weiqi Qian Ya Yang School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051China School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China SUSTech Engineering Innovation Center School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China

Hydrogen evolution via photo-electro-chemical(PEC)co-catalysis is potential for solving energy crisis and environmental *** rapidly advances of fabrication and broad applications of polydopamine(PDA)and its derivatives have drawn intense attentions in recent ***,an ultrathin PDA coating with nanometer accuracy was conformally grown on TiO_(2) nanotube arrays(NTAs)via electrochemical polymerization,in which the polymer provided a platform for further photoinduced assembly of CdS nanocrystals in the embedded *** optimized CdS@PDA/TiO_(2) NTAs hierarchical heterostructure as photoanode gave an excellent PEC performance and exhibited outstanding stability under light *** photocurrent density was heightened to 5.48 mA·cm^(–2),which was beneficial to H_(2) evolution with a rate of 20μmol·h^(–1)·cm^(–2).The improvement of PEC activity was ascribed to co-photosensitization,optimized carriers transfer,and transport route arised from CdS embedding,resulting to provide a persistent driving force for charge separation based on secure heterojunction of CdS/TiO_(2) glued by *** improvement of PEC stability was due to the inhibition of CdS photocorrosion covered by PDA *** advance boded well for the development of PEC field founded on multifunctional PDA.

关键词： polydopamine TiO_(2)nanotube arrays photoelectrocatalysis photocorrosion

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

Lattice expansion boosting photocatalytic degradation performance of CuCo_(2)S_(4) with an inherent dipole moment

引用

Chinese Chemical Letters 2023年第2期34卷 355-361页

作者： Yicheng Guo Biguo Yan Fang Deng Penghui Shao Jianping Zou Xubiao Luo Shuqu Zhang xibao li National-Local Joint Engineering Research Center of Heavy Metal Pollutants Control and Resource Utilization Nanchang Hangkong UniversityNanchang 330063China

Realizing efficient charge separation and directional transfer is a challenge for single-component *** spatial electric field generated by dipole moment could promote charge ***,three-dimensional hierarchical Cu Co_(2)S_(4)microspheres with lattice distortion were prepared,and lattice distortion was modulated by changing feed Co/Cu molar ratios in *** Co_(2)S_(4)showed asymmetric crystal structure,leading to generation of dipole *** charge separation efficiency of Cu Co_(2)S_(4)was related to lattice distortion,and lattice expansion was in favor for charge *** Cu Co_(2)S_(4)with feed Cu/Co molar ratio of 1:4 (CCS-4) showed the maximum lattice expansion and exhibited the highest photocatalytic activity,which was attributable to the highest charge separation efficiency and the largest specific surface ***-4 can remove 95.4%of tetracycline hydrochloride within 40 min photocatalysis,and effectively improve the biodegradability of pharmaceutical ***,this study provides a new vision for constructing single-component photocatalysts with high photocatalytic performance.

关键词： CuCo_(2)S_(4) Lattice distortion Visible-light photocatalysis Structure-activity relationship Biodegradability improvement

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

Two-dimensional RGO-bridge S-scheme phosphorus-doped g-C_(3)N_(4)/Bi_(5)O_(7)Ivan der Waals heterojunctions for efficient visible-light photocatalytic treatment of real pharmaceutical wastewater

引用

中国科学:技术科学英文版 2023年第10期66卷 3011-3024页

作者： WANG ZhenZhou XU XiWei DENG Fang DIONYSIOU Dionysios D li xibao PENG JunLong LUO XuBiao ZOU JianPing LUO Shenglian National-Local Joint Engineering Research Center of Heavy Metal Pollutants Control and Resource Utilization Nanchang Hangkong UniversityNanchang 330063China Environmental Engineering and Science Program Department of Chemical and Environmental Engineering(DChEE)University of CincinnatiCincinnati 45221-0012USA

The design of van der Waals heterojunctions with S-scheme charge transfer pathway is expected to be an effective strategy for improvement of photocatalytic ***,two-dimensional(2D)phosphorus-doped g-C_(3)N_(4)/Bi_(5)O_(7)Ivan der Waals heterojunctions with reduced graphene oxide as electron bridge(PCN/RGO/Bi_(5O)_(7)I)were successfully synthesized via hydrothermal *** van der Waals interaction endowed 2D PCN/RGO/Bi_(5O)_(7)I with intimate contact interface,lattice match,tunable band structure,and internal electric field,which efficiently promoted interfacial charge separation and enhanced redox ability of photogenerated charge *** a result,the S-scheme PCN/RGO/Bi_5O_7I van der Waals heterojunctions exhibited superior photocatalytic performance in ciprofloxacin degradation and real pharmaceutical wastewater *** optimized 12%PCN/RGO/Bi_5O_7I displayed the highest photocatalytic activity with 92%removal of ***,the COD removal efficiency and extent of mineralization of real pharmaceutical wastewater reached 66.9%and 59.8%,respectively,and the biodegradability of pharmaceutical wastewater was significantly *** photocatalytic mechanism of the S-scheme PCN/RGO/Bi_(5)O_(7)I van der Waals heterojunctions based on the analysis of reactive species,work function,and internal electric field was *** study provides fresh insights into plausible design of S-scheme van der Waals heterojunction to enhance photocatalytic redox ability.

关键词： S-scheme heterojunction van der Waals heterostructure photocatalytic degradation ciprofloxacin energy consumption

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：