检索结果-南通市图书馆

Journal of Materials Science & Technology 2023年第24期155卷 132-141页

作者： Tian Wang zhiliang jin School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyKey Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNorth Minzu UniversityYinchuan 750021China

The photocatalytic performance can be significantly improved by constructing suitable heterojunction *** is well known that graphdiyne possesses a unique conjugated carbon network nanostructure,which gives it ample active sites on its surface and facilitates the reduction of *** this study,a unique new double S-scheme heterojunction photocatalyst was constructed by simple self-assembly of GDY prepared via organic synthesis methods and *** to the study,an internal electric field controlling the transfer direction of the electron hole is formed between the interface of CuI-GDY and ZnAl-LDH,which broadens the light absorption range of the catalyst and improves the redox ability of the photocatalytic ***-GDY and ZnAl-LDH are tightly bound together,which helps to separate the photogenerated carriers while preserving the strong reduction electrons in the GDY conduction band and the strong oxidation holes in the ZnAl-LDH valence band so that they can fully participate in the redox *** charge-transfer paths on the S-scheme heterojunction interface were analyzed by in situ irradiation *** work provides an effective strategy for the construction of double S-scheme heterojunction photocatalysts.

关键词： Conjugated carbon network Graphdiyne S-scheme heterojunction Hydrogen evolution

Performance of Ni-Cu bimetallic co-catalyst g-C3N4 nanosheets for improving hydrogen evolution

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

Journal of Materials Science & Technology 2020年第14期47卷 144-156页

作者： zhiliang jin Lijun Zhang School of Chemistry and Chemical Engineering North Minzu UniversityYinchuan 750021China Ningxia Key Laboratory of Solar Chemical Conversion Technology North Minzu UniversityYinchuan 750021China Key Laboratory for Chemical Engineering and Technology State Ethnic Affairs CommissionNorth Minzu UniversityYinchuan 750021China

The Ni-Cu bimetallic nanoparticles were successfully anchorred on the surface of g-C3N4 nanosheets by a simple heat treatment process which was applied to the photocatalytic hydrogen evolution *** introduction of Ni-Cu could significantly improve the photocatalytic hydrogen evolution performance compared with pure g-C3N4 in the system sensitized by eosin Y under a visible irradiation *** hydrogen production activity of the composite reached 104.4μmol(2088.28μmol g^-1 h^-1)after using the Ni Cu double promoter strategy,which was 24.3 times higher than *** excellent electrical conductivity of the bimetallic Ni-Cu and the close interfacial contact between Ni Cu and g-C3N4 played an important role for increasing the charge transfer *** were also the reasons of more efficient charge separation,which ultimately led to a significant promotion on the photocatalytic hydrogen production ***-Cu/g-C3N4 coupling with a close Schottky interface between metal and semiconductor which enhanced H2-evolution performance and TEOA oxidation *** work provided a new way to load Ni Cu bimetallic nanoparticles in situ onto g-C3N4 and a reference on relative semiconductor materials.

关键词： Bimetallic Ni-Cu g-C3N4 Charge separation Hydrogen evolution

S-scheme heterojunction in photocatalytic hydrogen production

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第2期169卷 82-104页

作者： Teng Li Noritatsu Tsubaki zhiliang jin School of Chemistry and Chemical Engineering North Minzu UniversityYinchuan 750021China Department of Applied Chemistry Graduate School of EngineeringUniversity of ToyamaGofuku 3190Toyama 930-8555Japan

As an ideal secondary energy source,hydrogen has the title of clean energy and the product of its complete combustion is only water,which is not polluting to the *** hydrogen production technology is an environmentally friendly,safe,and low-cost strategy that requires only an inexhaustible amount of solar energy and water as *** paper provides a detailed and detailed review of S-scheme heterojunction photocatalysts for photocatalytic hydrogen production,mainly including TiO_(2)-based,Perovskite-based,CdS-based,Graphitic phase carbon nitride-based,COF-based graphdiyne-based,ZnO-based,and ZnIn_(2)S_(4)-based S-scheme heterojunction *** classification of S-scheme heterojunctions is ***’s more,various characterizations for direct verification of the charge migration mechanism of S-scheme heterojunctions are *** on the present study,the future potential challenges and future research trends for S-scheme heterojunctions in photocatalytic hydrogen evolution technology are pointed out,which provides feasible strategies for the development and design of S-scheme heterojunction photocatalysts in the field of photocatalytic hydrogen evolution.

关键词： S-scheme heterojunction Photocatalysis Charges migration Hydrogen evolution

Design and synthesis of ZnCo_(2)O_(4)/CdS for substantially improved photocatalytic hydrogen production

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

Frontiers of Chemical Science and Engineering 2023年第5期17卷 606-616页

作者： Xiaohong Li Youji Li Xin Guo zhiliang jin School of Chemistry and Chemical Engineering North Minzu UniversityYinchuan 750021China College of Chemistry and Chemical Engineering Jishou UniversityJishou 416000China

In this study,the hydrogen evolution performance of CdS nanorods is improved using ZnCo_(2)O_(4).ZnCo_(2)O_(4)nanospheres are synthesized using the hydrothermal and calcination methods,and CdS nanorods are synthesized using the solvothermal *** the perspective of morphology,numerous CdS nanorods are anchored on the ZnCo_(2)O_(4)*** to the experimental results of photocatalytic hydrogen evolution,the final hydrogen evolution capacity of 7417.5μmol·g^(-1)·h^(-1)is slightly more than two times that of the single CdS,which proves the feasibility of our *** various characterization methods,it is proved that the composite sample has suitable optoelectronic *** addition,ZnCo_(2)O_(4)itself exhibits good conductivity and low impedance,which shortens the charge-transfer ***,the introduction of ZnCo_(2)O_(4)expands the adsorption range of light and improves the performance of photocatalytic hydrogen *** design can provide reference for developing high-efficiency photocatalysts.

关键词： ZnCo_(2)O_(4)nanosphere CdS nanorods photocatalytic hydrogen evolution

EDA-assisted synthesis of multifunctional snowflake-Cu_(2)S/CdZnS S-scheme heterojunction for improved the photocatalytic hydrogen evolution

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2022年第26期121卷 28-39页

作者： Guorong Wang Yongkang Quan Kaicheng Yang zhiliang jin School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyKey Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNorth Minzu UniversityYinchuan 750021China

The charge separation efficiency is one of the main factors affecting the solar photocatalytic decomposition of water to produce *** a unique heterojunction can accelerate the separation and transfer of photo-generated charges,and effectively improve the photocatalytic efficiency,which is considered a potential ***,the 2%Cu_(2)S/CZS step-scheme(S-scheme)heterojunction based on morphology and electronic structure was successfully prepared via simple hydrothermal *** with the monomer Cu_(2)S and Cd Zn S,the hydrogen evolution rate of 2%Cu_(2)S/CZS samples is significantly *** particular,the 2%Cu_(2)S/CZS not only shows high hydrogen evolution rate of 5904μmol g^(-1)h^(-1)(3.19 times than original Cd Zn S),but also presents preferable cyclic *** to the characterization,we believe that the introduction of Cu_(2)S has the following three advantages:(i)The snowflake structure of Cu_(2)S reduces the agglomeration of granular Cd Zn S.(ii)The Cu_(2)S with narrow band gap broadens the light response range of the composite catalyst.(iii)The Cu_(2)S was introduced into Cd Zn S to form S-scheme heterojunction,which accelerated the separation and transfer of photo-generated *** work broadens the idea of designing efficient photocatalyst of hydrogen evolution.

关键词： S-scheme Heterojunction Multifunctional Snowflake-Cu_(2)S Photocatalyst

Ingenious Design of Co Al-LDH p-n Heterojunction Based on CuI as Holes Receptor for Photocatalytic Hydrogen Evolution

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2022年第6期41卷 79-85页

作者： Yue Cao Hongqian Gou Pengfei Zhu zhiliang jin School of Chemistry and Chemical Engineering Key Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNingxia Key Laboratory of Solar Chemical Conversion TechnologyNorth Minzu UniversityYinchuan 750021China School of Environmental Science and Engineering Shaanxi University of Science and TechnologyXi’an 710021China

Reasonable design of heterojunction can greatly improve the photocatalytic hydrogen evolution activity of ***,p-n heterojunction of 2D/3D structure is constructed by the nanosheet of CoAl-LDH and rock-like *** introduction of CuI can make CoAl-LDH disperse better,which brings more reaction sites for the hydrogen evolution ***,the 2D/3D structure is conducive to the construction of p-n heterojunction between the CoAl-LDH and *** optical and electrochemical properties of the material indicate that the separation and transference of photon-generated carriers are promoted by the p-n *** activity of composite catalyst(CI-10)reaches a maximum of 3.59 mmol g^(−1) h^(−1) which is 28.5 times higher than that of ***,the influence of the amount of CuI and pH value on the hydrogen evolution reaction is *** on the band structures of CoAl-LDH and CuI,the mechanism of photocatalytic reaction of CI-10 is *** p-n heterojunction constructed with the CuI as hole receptor provides a new way to enhance the activity of photocatalytic H_(2) evolution.

关键词： CoAl-LDH CuI p-n heterojunction photocatalysis hydrogen production

CoAl LDH@Ni-MOF-74 S-Scheme Heterojunction for Effi cient Hydrogen Evolution

在线全文

学校读者我要写书评

暂无评论

Transactions of Tianjin University 2021年第2期27卷 127-138页

作者： zhiliang jin Yanbing Li Qingxiang Ma State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021China Ningxia Key Laboratory of Solar Chemical Conversion Technology Key Laboratory for Chemical Engineering and TechnologyState Ethnic Aff airs CommissionSchool of Chemistry and Chemical EngineeringNorth Minzu UniversityYinchuan 750021China

Metal–organic frameworks(MOFs)and layered double hydroxides(LDHs)have been considered to be one of the most promising and worthy hot spot materials to develop advanced catalysts for effi cient hydrogen evolution due to their prominent characteristics,including unique structures,environmentally friendly nature,high redox activities,and homogeneously eff ective utilization of transition metal *** this work,the delicate S-scheme heterojunction photocatalyst,CoAl LDH@Ni-MOF-74,was rationally designed and successfully constructed by coupling Ni-MOF-74 with CoAl LDH based on their peculiar structure,excellent electronic properties,and opposite surface potential for enhancing hydrogen generation activity under visible light *** CoAl LDH nanolayers evenly and dispersedly load on the surface of *** CoAl LDH@Ni-MOF-74 exhibited higher photocatalytic hydrogen evolution activity compared with Ni-MOF-74 and CoAl LDH alone,mainly because the formation of the CoAl LDH@Ni-MOF-74 S-scheme heterojunction accelerated the recombination of several electrons(from conduction band(CB)of Ni-MOF-74)and holes(from valence band(VB)of CoAl LDH)and prevented the recombination of other electrons(from CB of CoAl LDH)and holes(from VB of Ni-MOF-74).

关键词： CoAl LDH Ni-MOF-74 S-scheme heterojunction Hydrogen evolution

CeO_(2) Particles Anchored to Ni_(2)P Nanoplate for Efficient Photocatalytic Hydrogen Evolution

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2022年第1期41卷 47-53页

作者： Teng Yan Xiaojie Zhang Hua Liu zhiliang jin School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyKey Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNorth Minzu UniversityYinchuan 750021China Department of Metallurgical and Chemical Engineering Jiyuan Vocational and Technical CollegeJiyuan 459000China

Photocatalytic hydrogen evolution can convert intermittent and dispersive solar energy into hydrogen with high energy density,which is expected to fundamentally solve the problems of environmental pollution and energy *** this experiment,the performance of the catalyst is modified by introducing cocatalyst and morphology ***(OH)2 nanoflowers are used as substrates to derive nanoplate stack Ni_(2)P by high-temperature phosphating method,and a great many of CeO_(2) nanoparticles are anchored in the Ni_(2)*** unique 3D/0D combination effectively inhibits the agglomeration of CeO_(2) nanoparticles and shortens the electron transfer ***,the introduction of metal-like performance of Ni_(2)P broadens the light absorption range of the catalyst and reduces the overpotential of the catalyst,which is a key factor in enhancing the catalytic *** design ideas of this experiment have reference significance for the design of efficient and environmentally friendly photocatalysts.

关键词： CeO_(2) Ni_(2)P photocatalysis hydrogen evolution

Enhanced photocatalytic hydrogen production from Co-MOF/CN by nitrogen and sulfur co-doped coal-based carbon quantum dots

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第5期42卷 838-850,I0002页

作者： Shiyong Xu Mei Li Yijun Wang Caiyun Gao Rongsheng Xu zhiliang jin School of Chemistry and Chemical Engineering North Minzu UniversityYinchuan750021China Ningxia Key Laboratory of Solar Chemical Conversion Technology.North Minzu University.Yinchuan 750021China State Key Laboratory of National Ethnic Affairs Commission Chemical Technology.North Minzu University Yinchuan750021China

A novel composite photocatalyst for photocatalytic decomposition of water for hydrogen evolution was successfully synthesized by in-situ growth of nitrogen and sulfur co-doped coal-based carbon quantum dots(NSCQDs)nanoparticles on the surface of sheet cobalt-based metal-organic framework(Co-MOF)and graphitic carbon nitride(g-C_(3)N_(4),CN).The structure and properties of the obtained catalysts were systematically *** effectively broaden the absorption of Co-MOF and CN in the visible *** new composite photocatalyst has high hydrogen production activity and the hydrogen production rate reaches 6254μmol/(g·h)at pH=*** the same time,NSCQDs synergy Co-MOF/CN composites have good *** four cycles of hydrogen production,the performance remains relatively *** tran sient photocurrent response and Nyquist plot experimental results further demonstrate the improvement of carrier separation efficiency in composite *** semiconductor type(n-type semico nductor)of the single-phase catalyst was determined by the Mott-Schottky test,and the band structure was *** conductive and valence bands of CN are-0.99 and 1.72 eV,respectively,and the conduction and valence bands of Co-MOF are-1.85 and 1.33 eV,*** e mechanism of the photocatalytic reaction can be inferred,that is,Z-type heterojunction is formed between CN an d Co-MOF,and NSCQDs was used as cocatalyst.

关键词： Nitrogen and sulfur co-doped Coal-based carbon quantum dots Co-MOF CN Photocatalytic hydrogen evolution Rare earths

Facilitating efficient photocatalytic hydrogen evolution via enhanced carrier migration at MOF-on-MOF S-scheme heterojunction interfaces through a graphdiyne(C_(n)H_(2n-2))electron transport layer

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2023年第12期42卷 11-23页

作者： Fei jin Bolin Yang Xuanpu Wang Teng Li Noritatsu Tsubaki zhiliang jin School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyKey Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNorth Minzu UniversityYinchuan750021PR China Department of Applied Chemistry Graduate School of EngineeringUniversity of ToyamaGofuku3190Toyama930-8555Japan

Interface engineering of photocatalysts is an effective way to enhance their photocatalytic *** this work,the MOF-on-MOF strategy was used to construct the ZIF-9(Co)/Cu_(3)BTC_(2) photocatalyst in ***,graph-diyne,possessing an inherent capability to facilitate rapid electron transfer at the interface,has been introduced into the ZIF-9(Co)/Cu_(3)BTC_(2) interface to regulate the interfacial carrier *** photogenerated carrier transfer capability has been significantly enhanced by the interfacial synergy,while retaining the original active sites and high specific surface *** exceptional efficiency performance of the composite catalyst under identical conditions could be attributed to the following two key factors:(i)The interfacial S-scheme hetero-junction in ZIF-9(Co)/Cu_(3)BTC_(2) provides the composite catalyst with strong reduction activity,facilitating the involvement of additional electrons in the reduction reaction through bended bands and an internal electric field.(ii)Carrier dynamics analysis shows that graphdiyne,as an electron transport layer,accelerates the charge migration rate at the S-scheme heterojunction interface through the electron relay *** incorporation of graphdiyne greatly improves the catalytic activity of MOFs and also demonstrates the great potential of graph-diyne in *** work provides a feasible idea for the interface engineering design of graphdiyne in photocatalysts.

关键词： Graphdiyne S-scheme heterojunction MOFs Photocatalytic hydrogen evolution