Article
Nanoscience & Nanotechnology
Mang Niu, Kunyan Sui, Xuesong Wu, Dapeng Cao, Chunzhao Liu
Summary: The study designed a GaAs quantum dot/TiO2 heterojunction and showed through calculations that this heterojunction has high performance in visible-light photocatalytic hydrogen evolution.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Guoxin Zhuang, Qihui Fang, Jinxin Wei, Chengkai Yang, Muqing Chen, Zikun Lyu, Zanyong Zhuang, Yan Yu
Summary: By utilizing oriented etching of a metal-organic framework (MOF), highly ordered nanostructures can be designed successfully. The resulting nanostructures show enhanced efficiency in catalyzing visible-light-driven hydrogen evolution, indicating potential for advanced photocatalyst design.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Di Yang, Zhi-Gang Li, Xinghao Zhang, Zenghuan Ren, Weihan Lu, Haining Liu, Xiaomeng Guo, Jijie Zhang, Xian-He Bu
Summary: In this study, a heterostructure was synthesized by growing ZnCdS quantum dots (QDs) with a size of approximately 5 nm onto the surface of a two-dimensional covalent organic framework (COF), TpPa-1-COF, to address the issue of QD aggregation. The ZnCdS/TpPa-1-COF composite exhibited a significantly higher hydrogen evolution rate compared to ZnCdS and TpPa-1-COF alone, thanks to the strong interfacial force generated by the 0D/2D heterojunction. Additionally, the photocatalytic mechanism was studied using Kelvin probe force microscopy and theoretical calculations. This study offers a novel approach for creating sulfide photocatalysts and is crucial for investigating the potential practical applications of related photocatalysts.
Article
Engineering, Environmental
Xing Wang, Guangtong Hai, Baozhen Li, Qingjie Luan, Wenjun Dong, Ge Wang
Summary: The study achieved a high H2 evolution rate by constructing a dual-Z-scheme heterojunction. The designed WS2-WO3.H2O/g-C3N4 catalyst effectively separated and migrated carriers, increased the exposure of active sites, and efficiently suppressed carrier recombination.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Jiayu Liao, Xiaohuan Jiang, Yingnan Duan, Huanhuan Liu, Mengkui Tian
Summary: A novel hierarchical Au/black phosphorus nanosheets/ZnIn2S4 (Au/BPNSs/ZIS) heterojunction photocatalyst was synthesized by growing ZnIn2S4 (ZIS) nanosheets on black phosphorus nanosheets (BPNSs) and depositing Au nanoparticles on the ZIS surface. The optimized Au/BPNSs/ZIS exhibited a significantly higher hydrogen evolution rate than pure ZIS and few-layer BPNSs. The improved photocatalytic performance of BPNSs/ZIS was attributed to the formation of Zn-P bonds and the interface electric field that facilitated interface charge transfer, while the deposition of Au nanoparticles formed Schottky junctions and further enhanced the photocatalytic activity. This work provides a new approach for developing BP-based heterojunctions in photocatalysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Jixian Wang, Lei Li, Shan Jiang, David J. Young, Zhi-Gang Ren, Hong-Xi Li
Summary: This study presents a series of SH-group-functionalized covalent organic frameworks (COFs) as prospective photoactive materials for photocatalytic hydrogen evolution. The use of nickel thiolate as a cocatalyst significantly enhances the hydrogen evolution rate.
Article
Chemistry, Physical
Zengxin Pu, Bing Xiao, Siman Mao, Yingxue Sun, Dandan Ma, Hongkang Wang, Jun Zhou, Yonghong Cheng, Jian-Wen Shi
Summary: This study successfully fabricated a two-dimensional/two-dimensional hybrid photocatalyst composed of acidified boron-doped g-C3N4 and cobalt porphyrin metal organic frameworks (CoPMOF), which achieved electron-hole separation mechanism and improved the efficiency of photocatalytic hydrogen evolution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Kaiwen Zhu, Fengjun Zhang, Weiqin Cai, Chao Liu, Yingrui Wang, Zeda Meng, Chaoqun Mi
Summary: A novel 0D/0D ZnS/Ag6Si2O7 heterojunction photocatalyst was successfully prepared by a simple hydrothermal-calcination method, and its structure and morphology were characterized. The results showed that the addition of Ag6Si2O7 greatly enhanced the photocatalytic performance of ZnS nanoparticles. The construction of 0D/0D heterojunction and the close interfacial contact between ZnS and Ag6Si2O7 accelerated the transfer and separation of photoexcited e--h+ pairs, leading to improved photocatalytic performance.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Engineering, Electrical & Electronic
Xueying Zhao, Wenyu Xie, Xueqing Shao, Zhuan Wang, Bo Yang, Chao Yang, Jide Wang, Xintai Su
Summary: In this study, Ni/C co-catalyst was successfully prepared to enhance the photocatalytic activity of TiO2 nanospheres, leading to improved hydrogen evolution performance.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Physical
Xiang-yin Ji, Rui-tang Guo, Jun-ying Tang, Zhi-dong Lin, Ye Yuan, Long-fei Hong, Wei-guo Pan
Summary: In this paper, a one-step solvothermal method was used to fabricate a ternary composite material that exhibits improved efficiency and stability in photocatalytic hydrogen generation. The optimal ternary catalyst achieved a high H2 evolution yield and AQY value, surpassing the performance of precious metal modified catalysts. Additionally, the composite material demonstrated excellent stability and recyclability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Zhiliang Jin, Xudong Jiang, Yanan Liu
Summary: Graphdiyne (g-CnH2n-2), a novel two-dimensional carbon allotrope material composed of sp-and sp2-hybrid carbon network, has great potential in photocatalysis. In this study, the researchers successfully prepared a high-performance graphdiyne/NiS composite photocatalyst by using Cu+ contained material as a catalyst.
Article
Chemistry, Physical
Mengchao Li, Donghai Zhang, Hualei Zhou, Kaiyue Sun, Xiaohui Ma, Mei Dong
Summary: In this study, ZnSe nanoparticles with good visible-light response were in-situ deposited on the surface of hollow tubular Co9S8 through hydrothermal and solvothermal methods, forming compact Co9S8/ZnSe heterojunctions. The composites with an optimum Co9S8 amount of 5 wt% exhibited significantly higher hydrogen evolution activity under visible light irradiation, 3.1 times that of independent ZnSe. The Co9S8-ZnSe heterojunction promoted the separation of electron-hole pairs, improved hydrogen evolution kinetics, and reduced electron transfer resistance, leading to the enhanced photocatalytic activity of the composites. The proposed S-scheme heterojunction photocatalytic mechanism was based on the measured energy band potentials. This work presents a strategy for constructing low-cost heterojunction photocatalysts to enhance hydrogen evolution performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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, Physical
Xiangang Lin, Liang Zhu, Bangwang Li, Daochuan Jiang, Haiwei Du, Chuhong Zhu, Zhiwu Yu, Yupeng Yuan
Summary: This study reports the promotion effect of soluble noble metal free Ni-salen molecules on photocatalytic H2 evolution. The Ni-salen molecules, combined with polymeric carbon nitride (PCN) and CdS heterojunction, can efficiently produce H2 under visible light irradiation, exhibiting better stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Haizhao Zheng, Zhiwei Chen, Cheng Huang, Linlin Gao, Tianao Dong, Juncheng Hu
Summary: The CdS/ZIF-8 heterojunction system was successfully fabricated through a facile wet-chemically method, showing significantly enhanced interfacial charge separation and superior photocatalytic hydrogen production performance compared to pristine CdS, offering new insights for novel photocatalyst development.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Sen Qian, Chuan Chen, Yan Wang, Hongkang Wang
Summary: This research focuses on improving the sensitivity of High-frequency current transformer (HFCT) sensors for pulse detection at high frequencies by refining the ferrites of the magnetic cores. The results show that the use of a two-step sintering technique and the addition of barium titanate (BaTiO3) can significantly improve the transfer functions of the HFCT sensors, thereby enhancing their sensitivity for pulse detection at high frequencies.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Kunli Song, Kaiyu Guo, Yixuan Lv, Dandan Ma, Yonghong Cheng, Jian-Wen Shi
Summary: Selective catalytic reduction with ammonia is the mainstream technology for flue gas denitration. The reducibility and acid site are two important factors affecting de-NOx performance, and their regulation through synthesis of Mn-Fe-BTC catalyst with different ratios of Mn and Fe has been investigated. The research provides guidance for flexible regulation of reducibility and acid site of low-temperature de-NOx catalyst.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Tianhao Yao, Li Li, Hongkang Wang
Summary: Titanium dioxide has been extensively studied as anode materials for sodium-ion batteries due to its low cost and high abundance. However, its slow ion/electron transfer rate limits its practical applications. In this study, TiO2@C-Sb nanotablets with a small amount of Sb content were developed through calcination of Ti-metal-organic framework derived TiO2@C/SbCl3 mixture. The TiO2@C-Sb exhibits enhanced electron/ion transfer rate and predominantly pseudocapacitive sodium storage behavior, making it a promising candidate for high-energy-density TiO2-based energy storage devices.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Yixuan Lv, Dandan Ma, Kunli Song, Siman Mao, Zhetong Liu, Dan He, Xuewen Zhao, Tianhao Yao, Jian-Wen Shi
Summary: The gradual depletion of global fossil energy and environmental pollution make the development of hydrogen energy an imminent concern. Researchers have found that introducing broken C-N compounds to construct homojunctions on two-dimensional g-C3N4 can significantly enhance photocatalytic H-2 generation and effectively suppress the recombination of photogenerated electrons and holes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Alexey Galushchinskiy, Yajun Zou, Jokotadeola Odutola, Pavle Nikacevic, Jian-Wen Shi, Nikolai Tkachenko, Nuria Lopez, Pau Farras, Oleksandr Savateev
Summary: Graphitic carbon nitride (g-CN) is a transition metal free semiconductor that mediates photocatalytic reactions through proton-coupled electron transfer (PCET) mechanism. The active sites for PCET are identified as the 'triangular pockets' on the edge facets of g-CN. Using excited state PCET, g-CN can selectively cleave X-H bonds with approximately 100 kcal mol(-1) bond dissociation free energy (BDFE), leading to the formation of 1,3-oxazolidine-2,4-diones.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Multidisciplinary
Tianhao Yao, Hongkang Wang, Yuanbin Qin, Jian-Wen Shi, Yonghong Cheng
Summary: This study presents a novel approach to enhance the storage behavior and reaction kinetics of TiO2-based anode in sodium-ion capacitors (SICs) through Mo-doping and carbon hybridization. The Mo-doped TiO2-x@carbon composite exhibits improved pseudocapacitive contribution, reversible capacity, cycling stability, and rate capability.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Zige Tai, Guotai Sun, Ting Wang, Zhihui Li, Jinge Tai
Summary: For the first time, a new photocatalyst PdS@NH2-MIL-125(Ti)@ZnS (PdS/M125/ZnS) heterojunction was fabricated for photo-catalytic H2 generation. The optimized photocatalyst displayed a significantly enhanced H2 generation rate compared to pure M125, attributed to the hierarchical structure and the type-II heterojunction formed by M125, ZnS, and PdS co-catalyst. This work provides a new avenue for designing MOFs photocatalysts for energy conversion.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Tianhao Yao, Hongkang Wang, Xin Ji, Deyu Wang, Qingmiao Zhang, Lingjie Meng, Jian-Wen Shi, Xiaogang Han, Yonghong Cheng
Summary: Titanium dioxide (TiO2) is a promising anode material for sodium-ion batteries (SIBs) but suffers from slow ion transferability and poor conductivity. To overcome these drawbacks, a facile strategy has been developed to engineer the lattice defects and microstructure of TiO2-based anode, resulting in enhanced sodium storage performance.
Article
Chemistry, Physical
Kunli Song, Kaiyu Guo, Siman Mao, Dandan Ma, Yixuan Lv, Chi He, Hongkang Wang, Yonghong Cheng, Jian-Wen Shi
Summary: This study reports a selective catalytic reduction (SCR) catalyst, quasi-metal-organic-framework (MOF) nanorod containing manganese (quasi-Mn-BTC)，which overcomes the disadvantage of poor SO2 tolerance of Mn-based catalysts. The catalyst exhibits excellent low-temperature (LT) denitration (de-NOx) performance and maintains high NOx conversion even under high SO2 concentration.
Article
Chemistry, Multidisciplinary
Guotai Sun, Zige Tai, Fan Li, Qian Ye, Ting Wang, Zhiyu Fang, Xiaoxiong Hou, Lichao Jia, Hongqiang Wang
Summary: To effectively reduce the charge recombination of bulk CdS, this study designed ultrathin CdS-NiFeS 2D-2D heterojunctions with tight interfaces, in which NiFeS nanosheets derived from layered double hydroxides have tunable work functions and hydrogen evolution overpotentials. The optimized CdS-2% NiFe0.1S photocatalyst exhibits excellent hydrogen generation activity, reaching 626.7 mu mol/h (equivalent to 62.67 mmol/g/h), which is highly competitive among noble-metal-free CdS-based catalysts. The enhanced catalytic performance is attributed to the establishment of sufficient contact interfaces, the shortened charge transport distance, and efficient electron transfer from CdS to NiFeS, as well as the presence of the bimetallic NiFeS cocatalyst providing abundant active sites and lowering the reaction barrier for H2 generation. This research provides new insights for the development of 2D nanomaterials with outstanding photocatalytic performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Energy & Fuels
Xiangbo Feng, Baorui Wang, Ge Gao, Shan Gao, Chong Xie, Jian-Wen Shi
Summary: In this study, a series of Mn-Co mixed metal oxides (MnyCo3_yOx) were prepared using ultrasonic technology and hydrothermal treatment, and their denitration performance in selective catalytic reduction (SCR) with NH3 was evaluated. The results showed that MnyCo3_yOx had significantly better SCR de-NOx performance compared to single metal oxides (MnOx or CoOx). This improvement was attributed to the strong interaction between MnOx and CoOx, which reduced crystallinity, increased surface area, facilitated redox cycling, enhanced reducibility and surface acid sites, and accelerated the reaction between adsorbed NOx species and coordinated NH3. This work suggests that building a strong interaction between catalyst components can improve de-NOx performance.
Article
Chemistry, Multidisciplinary
Chong Xie, Na Xu, Zhenyu Wang, Yixuan Lv, Ruixian Duan, Guiqiang Cao, Wei Xiao, Jian Qin, Jian-Wen Shi, Jiujun Zhang, Xifei Li
Summary: Designing heterostructured hosts is crucial for enhancing the performance of lithium-sulfur batteries. In this study, ultrafine anatase and rutile TiO2 nanoparticle-modified macroporous carbon microspheres were synthesized. The TiO2/C heterointerfaces constructed by anatase TiO2 demonstrated a higher catalytic efficiency compared to rutile TiO2, leading to a high specific capacity and low capacity decay rate for the S@AT@MC electrodes.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Xuan Xu, Xiangbo Feng, Wei Wang, Kunli Song, Dandan Ma, Yixuan Zhou, Jian-Wen Shi
Summary: A ternary heterostructure (ZnPPO) consisting of ZnO, tetrakis (4-carboxyphenyl) zinc porphyrin (ZnTCPP), and P-doped g-C3N4 (PCN) was developed. ZnPPO demonstrates superior photocatalytic activity for H2 generation from water splitting compared to binary heterostructures and single components. The enhancement can be attributed to the effective transfer of photo-generated charge carriers in the II-type and Z-scheme binding structure.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Kunli Song, Jiyuan Hu, Peng Lu, Dandan Ma, Xinya Zhou, Jun Li, Ting Jiang, Lu Li, Shangyuan Wu, Jian-Wen Shi
Summary: In this study, a low-temperature de-NOx catalyst with strong H2O tolerance was developed through methyl functionalization. The catalyst showed only a slight decrease in NOx conversion when 6% H2O was introduced at low temperature. The elimination of small pore size and diminished H2O adsorption energy due to methyl functionalization were found to be the key factors behind the improved H2O tolerance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Materials Science, Multidisciplinary
Ang Gao, Tianhao Yao, Menglong Yao, Ruochen Chen, Qiangrui He, Hongkang Wang
Summary: By complexing Ni/Co/Mn ions with glucose under solvothermal conditions, well-defined spherical Ni/Co/Mn-gluconate with tunable size and elemental composition is prepared and can be readily converted into yolk-shelled Li(NixCoyMn1-x-y)O-2. A yolk-shelled LiNi0.6Co0.2Mn0.2O2 cathode is prepared as an example and exhibits high specific lithium storage capacity and excellent cycling stability.
MATERIALS ADVANCES
(2023)
