Article
Chemistry, Physical
Youlin Wu, Pengfei Zhu, Youji Li, Lijun Zhang, Zhiliang Jin
Summary: By controlling vulcanization, zero-dimensional p-type NiS species were developed on the large surface of NiAl-LDH, enriching the active sites and triggering the in situ formation of a NiS/NiAl-LDH p-n heterojunction. This accelerated the separation and migration of charge carriers, resulting in significantly improved photocatalytic hydrogen evolution.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Xiaohong Li, Youji Li, Pengfei Zhu, Zhiliang Jin
Summary: The Co3O4/ZnIn2S4 p-n heterojunction photocatalyst was successfully prepared using Co3O4 nanosheets as the carrier. The rough surface of the Co3O4 nano-block allows for the absorption of more ZnIn2S4 nanosheets, resulting in a tight coupling of the composite. The p-n heterojunction interface accelerates the separation of photogenerated carriers and increases the rate of photocatalytic hydrogen evolution. The composite exhibited excellent hydrogen evolution performance, with a maximum capacity about 5.6 times higher than that of pure Co3O4. The built-in electric field enhances the accumulation and separation of electrons and holes, leading to higher separation efficiency. Characterization techniques further confirmed the excellent properties of the composites. This work provides insights for the construction of photocatalytic heterojunctions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Zhenzi Li, Haoze Li, Shijie Wang, Fan Yang, Wei Zhou
Summary: Mesoporous black TiO2/MoS2/Cu2S hierarchical tandem heterojunctions are fabricated as photocatalysts with visible-light photocatalytic hydrogen production rate of 3376.7 μmol h-1 g-1, attributed to suitable band gap alignment in the hierarchical tandem heterojunctions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Xian Yan, Zhiliang Jin
Summary: Facet-engineered surface and interface design is crucial for enhancing photocatalytic performance. By constructing p-n heterojunction and synthesizing active components like NiP2 and Cu3P, the efficiency of photocatalytic hydrogen evolution can be significantly improved.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Guorong Wang, Yongkang Quan, Kaicheng Yang, Zhiliang Jin
Summary: This study successfully improved the efficiency of solar photocatalytic water decomposition for hydrogen production by constructing a 2%Cu2S/CZS step-scheme heterojunction. The introduction of Cu2S has advantages of reducing particle agglomeration, broadening the light response range, and accelerating charge separation and transfer.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xiaowan Gong, Zheyuan Fan, Yiqiao Wang, Xianhua Qiu, Yu Xie, Yun Ling, Jinsheng Zhao
Summary: The photocatalytic activity of g-C3N4 was effectively improved by loading Cu2S and constructing Cu2S/Nv-C3N4 p-n heterojunctions. The best photocatalytic hydrogen production performance of Cu2S/Nv-C3N4 reached 197 μmolg(-1)h(-1), which was significantly higher than that of pure materials.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Kai Wang, Shanchi Liu, Youji Li, Guorong Wang, Mengxue Yang, Zhiliang Jin
Summary: Reasonable control of semiconductor materials interface is a potential strategy for developing efficient solar photocatalysts. In this study, a composite catalyst with S-scheme heterojunction structure was constructed by tightly coupling ZIF-67 and NiAl LDH using band structure matching and morphology regulation. The design of S-scheme charge transfer path enhanced the interfacial charge transfer efficiency and redox capacity of the catalyst. The introduction of phosphorus accelerated carrier separation efficiency, leading to excellent hydrogen production activity.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Wen Ge, Jiahui Song, Shukang Deng, Kong Liu, Peizhi Yang
Summary: The construction of p-n heterojunction is an effective method to enhance the efficiency of photocatalytic hydrogen production. In this study, a core-shell CoFe2O4@ZnIn2S4 p-n heterojunction photocatalyst was designed and fabricated, which exhibited excellent cycle applicability and chemical stability, achieving a remarkable hydrogen evolution rate.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Xiaoming Liu, Yinchu Zhang, Hongwei Wang, Jiajun Yan, Liushui Yan, Kexin Li, Huiqin Guo, Wang Gong, Jun Lin
Summary: A series of ZnxCd1-xS solid solutions were prepared by a solvothermal process as reported in this work. The optimized composition was determined to be Zn0.2Cd0.8S. A Cu7S4/Zn0.2Cd0.8S composite photocatalyst with a binary p-n heterojunction was synthesized, showing significantly improved photocatalytic activity for hydrogen production compared to pristine Zn0.2Cd0.8S and CdS. The proposed photocatalytic mechanism provides valuable insights for designing highly efficient heterojunction composite photocatalysts for solar hydrogen evolution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Wenqian Huang, Zhongyuan Fu, Xiaoyun Hu, Qing Wang, Jun Fan, Enzhou Liu
Summary: The heterojunction formed between Cu3Mo2O9 and TiO2 in the Cu3Mo2O9/TiO2 hybrid effectively promotes charge transfer, leading to a significantly enhanced photocatalytic hydrogen production activity. Cu3Mo2O9 plays a pivotal role in improving light absorption capacity and accelerating charge transfer in the composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jing Xu, Qian Li, Xinyu Liu, Qian Yang
Summary: In this study, NiAl-LDH/P-MoO3 composite catalysts were successfully prepared and characterized. The results showed that the composite catalyst exhibited high photocatalytic hydrogen-producing performance and stability, providing a theoretical basis for the construction of efficient photocatalytic hydrogen evolution reaction (HER) by heterojunction.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Xiaohua Ma, Yanan Liu, Yuanpeng Wang, Zhiliang Jin
Summary: In this work, a Co3O4/CeO2 p-n heterojunction was constructed by a hydrothermal method, effectively utilizing the internal electric field to accelerate the separation of electrons and holes. Test results showed that the catalyst with a ratio of CC-0.16 exhibited the best performance, significantly improving hydrogen production efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Zijian Xin, Haizhao Zheng, Juncheng Hu
Summary: Photocatalysts derived from semiconductor heterojunctions, such as the Co3O4@ZIS p-n heterojunction created in this study, show great potential in solar energy conversion. The Co3O4 hollow structure enhances light absorption and utilization efficiency, while also preventing agglomeration of ZnIn2S4 nanosheets and improving hydrogen generation rate. The Co3O4(20) @ZIS heterojunction exhibits excellent photocatalytic activity, producing hydrogen at a rate seven times higher than pure ZnIn2S4 under simulated solar light. These hollow p-n heterojunctions have promising applications in solar energy conversion.
Article
Chemistry, Physical
Ya Zhang, Lang Hu, Yongcai Zhang, Xiaozhi Wang, Honggui Wang
Summary: Snowflake-like Cu2S/MoS2 heterostructures were constructed via a hydrothermal method and their catalytic performances on hydrogen evolution reaction (HER) were investigated. The optimal catalyst of 45-Cu2S/MoS2 exhibited photothermal enhanced HER performance under near infrared (NIR) irradiation. By depositing Pt nanoparticles onto the heterostructures, a Schottky barrier was formed, resulting in low over potential and high Tafel slope. The photoelectrochemical (PEC) hydrogen production performance of the catalyst was also examined.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Liuyun Chen, Xinling Xie, Tongming Su, Hongbing Ji, Zuzeng Qin
Summary: In this study, Co3O4/CdS composites were prepared by ultrasonication and stirring for photocatalytic hydrogen production from water splitting. The results showed the enhancement of charge transfer rate and suppression of electron-hole pair recombination in the composites, leading to significantly increased photocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yueyang Zhang, Hai Liu, Mengxue Yang, Zhiliang Jin
Summary: Improving the photocatalytic hydrogen evolution activity can be achieved by constructing a unique structure and tuning the morphology of catalysts. In this study, Co3O4 derivatives with different morphologies were prepared using ZIF-67 as a precursor, and a p-n heterojunction was successfully constructed. The composite catalyst showed excellent photocatalytic hydrogen evolution activity, providing a new approach for enhancing hydrogen production through morphology control.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Xuanpu Wang, Teng Li, Xiangyi Wang, Zhiliang Jin
Summary: By combining a new preparation method of graphdiyne (GDY) with g-C3N4, a conjugated structure photocatalyst was constructed. The electron-donating effect of the amino group effectively promoted the separation rate of photogenerated electrons and holes in g-C3N4. The charge delocalization effect between GDY and g-C3N4 accelerated the surface migration rate of the photogenerated electrons. This work provides ideas for the design of photocatalyst systems and the application of carbon materials in photocatalysis.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Energy & Fuels
Mei Li, Jingzhi Wang, Zhiliang Jin
Summary: Graphdiyne (GDY) is prepared using Cu+ as a catalyst and anchored with nickel-vanadium hydro calcite (NiV-LDH) to form a double S-scheme heterojunction photocatalytic hydrogen precipitation system. This heterojunction improves the transfer rate of photogenerated carriers and the catalytic stability of the composite. The production of H2 in triethanolamine solution is significantly higher compared to NiV-LDH and NiV-LDH/CuI. This work provides an effective strategy for the rational construction and application of graphdiyne group heterostructures in the field of photocatalytic hydrogen evolution.
Article
Chemistry, Physical
Yueyang Zhang, Hai Liu, Pengfei Zhu, Mengxue Yang, Zhiliang Jin
Summary: A binary catalyst ZIF-67@CoFe LDH with an S-scheme heterojunction mechanism and a framework structure is designed. The catalyst demonstrates efficient separation of photo-generated carriers, excellent hydrogen evolution activity and stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Zhaobo Fan, Yafeng Liu, Xin Guo, Zhiliang Jin
Summary: Photocatalytic water splitting for hydrogen production is essential for solving the energy crisis. In this study, benzene-ring grafted g-C3N4 nanotubes (Ph-g-C3N4) were combined with CdSe nanoparticles to achieve efficient hydrogen production. The addition of CdSe nanoparticles improved the stability and absorbance of the catalytic system. The constructed composites catalyst exhibited low resistance, efficient electron separation, and enhanced electron transfer, leading to a highly efficient hydrogen evolution reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Guorong Wang, Guiquan Liu, Zhiliang Jin
Summary: Vanadium-based hydrotalcite materials have garnered considerable attention in supercapacitor electrodes due to their polyvalent properties. However, the weak electrical conductivity of hydrotalcite hinders its further development. Nanoflowers P-NiV-LDHs-8 and Se-NiVLDHs-1 were obtained through ingenious surface modification of nanoflower microlamellae of NiV-LDHs to overcome this issue. Compared to other materials, nanoflowers P-NiV-LDHs-8 and Se-NiV-LDHs-1 exhibit better mass-specific capacity, rate performances, energy density, power density, and specific capacitance retention.
ACS APPLIED NANO MATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Shiyong Xu, Jiqiao Zhang, Mei Li, Zhiliang Jin, Yijun Wang
Summary: Sulfur-doped carbon quantum dots with good stability and small particle size were synthesized using high sulfur content coal. These quantum dots emitted blue fluorescence and exhibited better selectivity, interference resistance, and sensitivity in the detection of metal ions.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Yanbing Li, Zhiliang Jin, Noritatsu Tsubaki
Summary: A continuous-evolution strategy was used to convert poor-performance NiCo PBA into advanced functional nanomaterials with improved photocatalytic performance. Hollow-structured NCP-60 particles showed an enhanced H2 evolution rate compared to raw NCP-0. The resulting NiCoP nanoparticles achieved a significantly higher H2 evolution rate without any cocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xin Guo, Linlin Fan, Tingting Yang, Yafeng Liu, Zhiliang Jin
Summary: The design of an S-scheme heterojunction can promote the transfer of photogenerated electrons, which is an effective method to improve the activity of photocatalytic hydrogen production. In this study, CdS/ZnCd-PBA composite catalysts were prepared using a simple physical method, and a CdS/ZnCd-PBA S-scheme heterojunction was designed. The close contact between the interface of the two catalysts is conducive to the rapid transfer of photogenerated carriers, providing a new path for electron transfer. The hydrogen production of a CdS/ZnCd-PBA catalyst with a ZnCd-PBA content of about 15% was 962 μmol under simulated light for 5 h, which was 13 and 916 times higher than those of CdS and ZnCd-PBA, respectively. At the same time, CdS/ZnCd-PBA-15 composites also showed good long-term stability. It shows that the construction of the S-scheme heterojunction promotes the separation of electron-hole pairs, which can effectively improve hydrogen production activity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Cheng Yang, Xuanpu Wang, Teng Li, Youlin Wu, Zhiliang Jin
Summary: In this study, graphdiyne/CuO and NiMoO4/GDY/CuO composite catalysts were prepared by cross coupling and high-temperature annealing methods. The introduction of CuI played a dual role as a catalytic coupling agent and a precursor for CuO. The addition of CuO improved the charge separation and acted as an acceptor for unwanted holes. The good conductivity and reduction ability of graphdiyne played crucial roles in enhancing the performance of the composite catalyst. The study established a reasonable charge transfer mode for hydrogen evolution using graphdiyne as the active site, leading to improved separation efficiency of photogenerated carriers. This clean and efficient multicomponent system has promising applications in photocatalytic hydrogen production.
Article
Chemistry, Physical
Haiyan Xie, Kai Wang, Dingzhou Xiang, Songling Li, Zhiliang Jin
Summary: Graphdiyne (GDY) was prepared and introduced into NiCo2O4 to form a NiCo2O4@GDY p-n heterojunction. The heterojunction exhibited excellent photocatalytic hydrogen performance, with a hydrogen evolution rate 4.84 and 6.91 times higher than GDY and NiCo2O4, respectively. The improved efficiency can be attributed to the built-in electric field and the unique nanocage structure of NiCo2O4, which promotes the transfer and separation of photoexcitons and enhances sunlight utilization. The possible mechanism was explained through experimental and theoretical calculations.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Zhenkun Liu, Youji Li, Zhiliang Jin
Summary: In this study, a novel mechanical ball milling method was used to prepare graphdiyne (GDY) as the electron acceptor for photocatalytic hydrogen production experiments. GDY was compounded with Ni-doped MoS2 by a hydrothermal method. The NiS doping acted as a template for the growth of MoS2 flake and reduced the band gap of MoS2, allowing more photogenerated electrons to participate in the photocatalytic hydrogen evolution reaction. In situ XPS showed the formation of a S-scheme heterojunction between GDY and the doped product NM-3, which facilitated electron transfer and enhanced the hydrogen generation activity of NM-3.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Kai Wang, Xu Kong, Haiyan Xie, Songling Li, Miao Wang, Zhiliang Jin
Summary: In this study, a low-temperature mixing method was used to successfully prepare a GDY/ZnCo-ZIF S-scheme heterojunction photocatalyst, which possesses good ductility, strong conductivity, and an adjustable energy band structure. The GDY/ZnCo-ZIF-0.9 composite exhibited a hydrogen production of 171.79 μmol, which is 6.67 and 13.5 times higher than that of GDY and ZnCo-ZIF materials, respectively. The apparent quantum efficiency of the GDY/ZnCo-ZIF-0.9 composite at 470 nm was 2.8%. The improved photocatalytic efficiency is attributed to the efficient separation of space charges enabled by the S-scheme heterojunction structure.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Linqing Zhang, Xuanpu Wang, Youji Li, Zhiliang Jin
Summary: In this study, Graphdiyne (GDY) was synthesized via organic synthesis and a GDY/CuS/ZnCoS2 double S-scheme heterojunction was constructed. The ternary composite catalyst showed superior hydrogen production performance due to the special charge distribution of GDY, and the hydrogen production capacity significantly improved in the presence of ZnCoS2. The effects of charge transfer and possible reaction mechanisms during hydrogen generation were studied.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zhiliang Jin, Tian Wang, Entian Cui, Xiuli Yang
Summary: Graphdiyne-based composite catalyst GDY-Cu with a constructed S-scheme heterojunction can enhance photocatalytic hydrogen evolution activity. The joint construction of Ohmic junctions and S-scheme heterojunctions provides a unique transport pathway for electron transfer.
CHEMICAL ENGINEERING JOURNAL
(2023)
