Article
Chemistry, Physical
Zezhong Li, Jing Xu, Zhenlu Liu, Xinyu Liu, Shengming Xu, Yue Ma
Summary: The hydrothermal synthesis of NiCo2S4/ZnIn2S4 photocatalysts with different mass ratios was investigated. The growth of Ni-cobalt bimetallic sulfide nanosheets on zinc-indium bimetallic sulfide resulted in a compact heterojunction. The heterojunction exhibited N-type semiconductor characteristics and facilitated charge self-diffusion between the two semiconductors, leading to the formation of a strong electric field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Vadivel Saravanan, Pandian Lakshmanan, Nallasamy Palanisami, John Amalraj, Radha D. Pyarasani, Chennan Ramalingan
Summary: A facile, green and easily scalable method has been developed for constructing 2D-C3N4/3D-CeO2 heterojunction materials using cheap urea and ceria. The controlled growth of carbon nitride layers on cerium oxide surface was achieved through a thermal spreading technique. The morphology of the carbon nitride could be controlled by varying its composition. The optical absorption and catalytic activity of the materials were enhanced, and a plausible mechanism for the photocatalytic decomposition was proposed.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Alexandra Tavasoli, Abdelaziz Gouda, Till Zahringer, Young Feng Li, Humayra Quaid, Camilo Viasus J. Perez, Rui Song, Mohini Sain, Geoffrey Ozin
Summary: This study demonstrates improved photocatalytic dry reforming performance by selectively phosphating the surface of a CeO2 nanorod support to modulate the surface basicity of a Ni-CeO2 photocatalyst. An optimum phosphate content is found, leading to little activity loss and carbon deposition over a 50-hour reaction period. The enhanced performance is attributed to the Lewis basic properties of the PO43- groups, which improve CO2 adsorption, facilitate the formation of small nickel metal clusters, and provide mechanical stability. A hybrid photochemical-photothermal reaction mechanism is also demonstrated.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xiaowang Lu, Liming Quan, Haijun Hou, Junchao Qian, Zhengwei Liu, Qinfang Zhang
Summary: The one-dimensional Y-doped CeO2 nanorods and two-dimensional ZnIn2S4 S-scheme heterojunction composite prepared via hydrothermal and solvothermal method exhibit high hydrogen evolution rate under visible light irradiation, with efficient separation of photogenerated electrons and holes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Khalid A. Alzahrani, Adel A. Ismail
Summary: In this study, mesoporous CeO2 nanorods were hydrothermally synthesized and a novel S-scheme heterojunction alpha-Fe2O3/CeO2 photocatalyst was constructed. The optimized S-scheme Fe2O3/CeO2 nanocomposites displayed a superior photocatalytic H2 evolution rate of 2973.2 mu molg- 1h- 1, which was 5.43 folds greater than that of CeO2 nanorods. The electron transport channels in S-scheme Fe2O3/CeO2 nanocomposites facilitated the spatial migration and separation of photocarriers. The high H2 evolution rate of the Fe2O3/ CeO2 photocatalyst was attributed to its synergistic effect, porous architecture, oxygen vacancies, small particle size and high visible light absorption ability. The durability and stability of the Fe2O3/ CeO2 nanocomposite were confirmed by the consistent H2 evolution rate after five cycles.
SURFACES AND INTERFACES
(2023)
Article
Engineering, Environmental
Caijian Zhang, Meiying Jia, Zhengyong Xu, Weiping Xiong, Zhaohui Yang, Jiao Cao, Haihao Peng, Haiyin Xu, Yinping Xiang, Ying Jing
Summary: The efficiency of g-C3N4 in the photodegradation of fluoroquinolones antibiotics was limited by the low separation efficiency of carriers, which was effectively improved by constructing a two-dimensional/two-dimensional heterojunction. The prepared 2D/2D N-ZnO/CN heterojunction composites showed excellent photocatalytic performance in degrading antibiotics, with active species dominated by holes and superoxide radicals. This work enriched the engineering of 2D/2D heterojunctions for g-C3N4, providing a new possibility for solving antibiotic pollution in the environment by combining 2D MOFs-derivatives with g-C3N4.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yixuan Xiao, Zheng Ji, Chan Zou, Yiqing Xu, Run Wang, Jiang Wu, Guolong Liu, Ping He, Qiang Wang, Tao Jia
Summary: A series of CeO2/BiOI S-scheme heterojunction photocatalysts were prepared through a simple method, showing significantly improved photocatalytic activity. This work provides guidance for exploring the effective construction of Bi-based composite photocatalysts with S-scheme heterojunctions.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Mengchi Liu, Peng Ye, Men Wang, Lele Wang, Chao Wu, Jing Xu, Yuanping Chen
Summary: Constructing S-scheme heterojunction derived from metal-organic frameworks (MOFs) with high photoredox ability and boosted charge separation efficiency is promising in photocatalytic wastewater treatment. In this study, an S-scheme heterojunction composed of MOF-BiOCl and MoS2 nanosheets was constructed, resulting in enhanced degradation efficiency of tetracycline (TC). The optimized MOF-BiOCl/MoS2-3 composite exhibited the highest TC degradation rate. This improvement is attributed to the in situ synthesis of BiOCl nanosheets from Bismuth-MOFs, which preserved the ultrahigh porosity and specific surface area of the MOFs, and the intimate interfacial contacts provided by the 2D/2D geometry.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Qiqi Zhang, Xue Bai, Xiaoyun Hu, Jun Fan, Enzhou Liu
Summary: This study achieved efficient H-2 evolution by constructing an S-scheme heterojunction, which accelerates the migration of photogenerated carriers and enhances the redox ability to improve catalytic activity.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Bin Zhang, Xiaoyun Hu, Enzhou Liu, Jun Fan
Summary: The design and construction of heterojunction photocatalysts with staggered energy band structure and appropriate interfacial contact is an effective way to achieve outstanding photocatalytic performance. A novel 2D/2D BiOBr/g-C3N4 heterojunction was successfully obtained by a convenient in situ self-assembly route, showing superior degradation and hydrogen production activity under simulated sunlight irradiation.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Cao Chen, Jundie Hu, Xiaogang Yang, Tingyu Yang, Jiafu Qu, Chunxian Guo, Chang Ming Li
Summary: An ambient-stable and effective 2D/2D heterostructure of BP/bismuth tungstate (Bi2WO6) with oxygen vacancy is designed for syngas production via photocatalytic CO2 reduction, resolving the stability problem of BP nanosheets and greatly improving charge transfer efficiency. This work achieves high generation rates of CO and H2, along with desirable CO/H2 ratios for industrial applications, making it an efficient and ambient-stable BP-based photocatalyst for syngas production by CO2 reduction at mild conditions.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Bicheng Zhu, Jian Sun, Yanyan Zhao, Liuyang Zhang, Jiaguo Yu
Summary: Semiconductor photocatalytic technology has significant applications and can be enhanced by constructing 2D S-scheme heterojunction photocatalysts, which can efficiently separate charges and maximize redox capabilities.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Haonan Han, Xinglei Wang, Yongmin Qiao, Yinlong Lai, Bin Liu, Yi Zhang, Jianmin Luo, Sam Toan, Lei Wang
Summary: An increasing amount of nitric oxide (NOx), a harmful air pollutant, is being emitted into the atmosphere due to industrial development and fossil fuel combustion. Photocatalysis, a green and renewable technology, has gained attention as a potential solution to address this environmental pollution. In this study, a novel S-scheme CeO2-x/g-C3N4-x (Ce/CN) photocatalyst was synthesized to enhance the photocatalytic activity for NO removal under visible light irradiation. The results showed that the photocatalytic efficiency of 4Ce/CN was about 1.7 times higher than that of g-C3N4. The enhanced photocatalytic activity was attributed to the N and O dual defects, the excellent conductivity of CeO2, and the in-built field of the Ce/CN S-scheme heterojunction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Teng Li, Xin Guo, Lijun Zhang, Teng Yan, Zhiliang Jin
Summary: The key to the carrier transfer separation conditions in heterojunction composite photocatalysts lies in the intimate contact interface. By enhancing the electron transfer rate between catalysts during photocatalytic hydrogen production, and designing the close contact of 0D/2D heterojunction, the photocatalytic hydrogen production activity of the composite catalyst can be greatly increased.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hongying Li, Haiming Gong, Zhiliang Jin
Summary: This research successfully prepared a composite catalyst Ni-MOF-74/BiVO4/P with excellent performance by modification, achieving the directional migration of photo-generated carriers and increasing the hydrogen production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Green & Sustainable Science & Technology
Xuanpu Wang, Youji Li, Teng Li, Zhiliang Jin
Summary: This research demonstrates the excellent photocatalytic hydrogen evolution capability of a composite bimetallic sulfide ZnCo2S4 and CdS. The synergistic effect of zinc ions and cobalt ions enriches the redox-active sites, improving the hydrogen production efficiency of the catalyst. The experimental results show that the hydrogen evolution amount of the composite catalyst is 10 times that of single CdS, and the catalyst exhibits good stability. The apparent quantum efficiency of the composite catalyst with the best hydrogen evolution activity reaches 17.96%. This work provides a feasible method for expanding the application of CdS in the field of photocatalytic hydrogen evolution.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Green & Sustainable Science & Technology
Xin Guo, Cancan Chang, Guorong Wang, Xuqiang Hao, Zhiliang Jin
Summary: This study presents a highly efficient and stable photocatalyst for hydrogen evolution by using CoP2 semiconductors and P-CoV-LDH. The introduction of ZnxCd1-xS solid solution enables the oriented control of carrier migration and enhances the efficiency of the photocatalyst.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Yongkang Quan, Guorong Wang, Cancan Chang, Zhiliang Jin
Summary: The construction of heterojunctions is an important means to improve the efficiency of photocatalysts. This study introduced a non-precious metal co-catalyst Cu3P to successfully construct p-n heterojunctions, which increased light absorption capacity and H+ capture, and improved photocatalytic hydrogen precipitation activity and stability. Continuously optimizing the loading of NiO and Cu3P further enhanced the overall photocatalytic performance.
Article
Engineering, Chemical
Mengxue Yang, Youji Li, Zhiliang Jin
Summary: Graphdiyne (GD) was successfully prepared and applied to photocatalytic reactions. By regulating the morphology and constructing double S-scheme heterojunctions, the CoFe LDH/CuI/GD composite photocatalyst achieved efficient transfer of photogenerated carriers. The hydrogen production activity of CoFe LDH/CuI/GD was 8.6 times that of CuI/GD and 43.8 times that of CoFe LDH.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zhenkun Liu, Zhiliang Jin
Summary: Graphdiyne (GDY), a new carbon material, shows exceptional performance in various applications. CuI-GDY/NiMn(LDHs) composite catalysts were synthesized, which exhibited enhanced electron transfer rate and improved hydrogen precipitation activity. The composite catalysts maintained good stability and achieved a significantly increased hydrogen production activity compared to the individual components.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Zhiliang Jin, Xuanpu Wang, Youlin Wu, Teng Li
Summary: In this study, a GDY/CuMoO4 (CMO)/CuO tandem S-scheme heterojunction was constructed using the cross-coupling method. The GDY was easily collected with the help of CuI as a coupling catalyst and precursor for more active composite catalysts. The highly conjugated system and excellent electrical conductivity of 2D GDY provided a unique system with strong charge distribution and transport, resulting in stronger reducing activity and carrier transfer capability in the constructed S-scheme heterojunctions. The intrinsic charge transfer mechanism of the catalyst was investigated, and a proposed mechanism for the photocatalytic hydrogen production reaction was proposed.
Article
Energy & Fuels
Xiaohong Li, Zhiliang Jin
Summary: The performance of photocatalytic hydrogen evolution is improved by constructing a heterojunction structure based on enhancing photogenerated carrier separation and interfacial charge transfer. A 3D gear-like NH2-MIL-53(Al) material is synthesized via the template-free hydrothermal method, and the 2D irregular loose flake material Co3O4 derived from metal-organic framework is loaded. The composite photocatalyst Co3O4/NH2-MIL-53 (Al) exhibits a much higher hydrogen evolution rate compared to the two single catalysts due to the heterojunction structure formed by the appropriate arrangement of energy bands.
Article
Green & Sustainable Science & Technology
Youlin Wu, Teng Li, Zhiliang Jin
Summary: With the introduction of an appropriate amount of Ti3C2 MXene by hydrothermal method, the electrochemical performance of NiAl-LDH can be improved. NiAl-LDH@Ti3C2 is simply compounded with ZnCdS to obtain ZnCdS/NiAl-LDH@Ti3C2. The optimal ratio of hydrogen evolution activity is 27.10 mmol g(-1) h(-1) under alkaline solution, which is significantly higher than ZCS and ZnCdS/NiAl-LDH-20, while ZnCdS/NiAl-LDH@Ti3C2-20 is 1883 mu mol (37.66 mmol g(-1) h(-1)) in acidic solution, which is much higher than ZnCdS and ZnCdS/NiAl-LDH-20. This improvement is mainly attributed to the doping of Ti3C2 in the NiAl-LDH preparation, which enhances the electrochemical properties of NiAl-LDH.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Engineering, Environmental
Cheng Yang, Xuanpu Wang, Youlin Wu, Zhiliang Jin
Summary: A strategy of constructing S-scheme heterostructure based on graphdiyne by inducing Co-P bond through high-temperature phosphorylation. The Co-P bond builds the electron bridge at the interface between CuCo2O4 and graphdiyne, inhibiting carrier recombination and weak light absorption. The anchored lamellar structure of graphdiyne on nanospheres increases surface area and serves as an active site for hydrogen evolution.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yueyang Zhang, Hai Liu, Zhiliang Jin
Summary: This study successfully obtained metallic coordination polymers (MCPs) with higher activity by preparing metal-organic frameworks (MOFs) using the hydrothermal method and introducing PVP extension. A binary assembled polymetallic coordination polymer (PMCP) with a stepped flower group structure was constructed by a one-pot method, and the ion-coordinated self-assembling process of binary polymetallic coordination polymers (Cu-MCPs and Co-MCPs) was realized. Various experimental characterization techniques confirmed the successful morphology modulation and demonstrated the potential application in photocatalysis.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Xin Guo, Qian Xiao, Tingting Yang, Yantao Sun, Zhiliang Jin
Summary: Graphdiyne, a two-dimensional carbon allotrope, possesses excellent physical and chemical properties and acts as a semiconductor with a band gap. In this study, a composite catalyst CSG was synthesized, which effectively promoted the transport of photogenerated carriers and significantly increased the hydrogen production.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Zhiliang Jin, Youlin Wu
Summary: Graphdiyne (GDY), a new two-dimensional carbon hybrid material, has gained significant attention due to its unique properties in photocatalytic activity. In this study, researchers successfully developed a new method for the low-cost and high-yield production of GDY. Experimental results demonstrated that this one-pot conjugation method offers simplicity and obvious universality.
Article
Chemistry, Physical
Xiaohong Li, Minjun Lei, Zhiliang Jin
Summary: This study prepared graphdiyne (GDY) by mechanical ball milling and coupled it with CoS2 nanoparticles to form a heterojunction photocatalyst. The introduction of GDY improved the carrier migration and energy efficiency, resulting in enhanced hydrogen evolution activity.
JOURNAL OF CATALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Tian Wang, Zhiliang Jin
Summary: This work explores the development of new and efficient photocatalysts for photocatalytic hydrogen evolution. By growing CdS particles on Cu2WS4, a CdS/Cu2WS4 heterojunction with strong redox ability is synthesized. The heterojunction utilizes the large area (101) surface of Cu2WS4 for catalytic reactions and activates the CdS (101) facet, promoting charge carrier transfer. The CdS/Cu2WS4 heterojunction exhibits remarkably high hydrogen evolution activity due to the synergistic effect of (101) facet activation and the S-scheme heterojunction.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Jingzhi Wang, Mei Li, Zhiliang Jin
Summary: Dynamics and morphology are crucial in photocatalytic hydrogen production. Regulating photogenerated charge transfer and adjusting catalyst morphology can enhance catalytic activity.