Article
Engineering, Environmental
Yuzhen Li, Zhaoxin Sun, Sufang Wang, Runbin Duan, Shaojie Wang, Shuo Li, Borong Lan, Lizhen Gao
Summary: In this study, a ternary heterojunction photocatalyst was successfully prepared and showed excellent performance in the degradation of tetracycline under visible light. It exhibited high stability and reusability, and a possible photodegradation mechanism was proposed based on the experimental results.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Jaspal Singh, Sophia Akhtar, Trang Thu Tran, Jeongyong Kim
Summary: In this study, C3N4-functionalized MoS2 nanoflowers were fabricated using a hydrothermal method and applied for the removal of organic pollutants from water. The heterojunction formation between MoS2 and C3N4 nanosheets was confirmed, and the as-prepared 2D C3N4-MoS2 nanohybrids exhibited significant photocatalytic performance. The highest heterojunction density of the nanohybrids showed enhanced photodecomposition performance due to effective charge separation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hao Huang, Yonglin Lei, Ling Bai, Yao Liang, Han Yang
Summary: The synthesis of various morphologies of CdS was achieved by adjusting different solvents and crystal control agents. The concept of point-flat-plate microstructure assembly was introduced for the construction of ternary quasi 2D/2D CdS/MoS2/WS2 heterojunction. The resulting heterojunction showed excellent photocatalytic degradation characteristics of tetracycline due to the better geometric configuration and enhanced separation of photogenerated electrons.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Jiacen Lin, Han Yang, Jun Zhang, Shuai Yang, Chao Chen, Xiaoshan Xiong, Haiying Qin, Junhua Xi, Zhe Kong, Lihui Song, Jinghui Zeng, Xing Duan
Summary: A new type II 0D/3D Ni0.85Se/MoSSe heterojunction photocatalyst was prepared with optimized composition ratio. The catalyst exhibited outstanding catalytic performance in photocatalysis, electrocatalysis, and photoelectrochemistry. The 3D reticular structure of MoSSe facilitated the loading of 0D Ni0.85Se nano-particles, accelerating carrier separation and transmission. The type-II heterojunction between MoSSe and Ni0.85Se allowed for efficient separation of photoinduced electrons and holes, leading to excellent catalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Wenqian Chen, Shaomei Zhang, Ganyu Wang, Gang Huang, Zhichong Yu, Yirui Li, Liang Tang
Summary: Introducing 1T-MoS2 to form a ternary heterojunction greatly enhances the performance of CdS-based heterojunctions for solar hydrogen evolution.
Article
Chemistry, Physical
Huaiwei Zhang, Yifan Chen, Liang Bao, Jing-yuan Ge
Summary: A Z-scheme heterojunction with all-solid-state structures was constructed, in which carbon dots acted as electron transferring mediators. The modified photocatalysts showed significantly higher activities, with ammonia production rates reaching above 232 lmol center dot gcal-1 center dot h-1 under light irradiation. The improved catalytic properties were attributed to the increased number of photoinduced oxygen vacancies, excellent visible-light adsorption abilities, and efficient photogenerated electron-hole separation efficiencies for the carbon dots bridged heterostructures. This study provides reasonable guidance for applications in photocatalytic ammonia synthesis and a promising construction strategy for efficient Z-scheme photocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Xiaohui Zhang, Zhiwei Chen, Ying Luo, Xiaole Han, Qingqing Jiang, Tengfei Zhou, Haijian Yang, Juncheng Hu
Summary: The research team successfully designed a Z-scheme CdS/NH2-MIL-125(Ti) heterojunction photocatalyst, which can significantly enhance the hydrogen evolution rate and provide a new avenue for solar-driven energy conversion.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Yajing Ren, Yunfeng Li, Guixu Pan, Ning Wang, Yan Xing, Zhenyi Zhang
Summary: Photocatalytic technology utilizing sunlight as a driving force can convert solar energy into other energy sources for storage and use. CdS, as a typical reducing semiconductor, has attracted attention in photocatalysis due to its suitable bandgap and strong reducing ability. However, the photocatalytic performance of CdS is limited by carrier recombination and photocorrosion. Therefore, CdS has been widely developed as a reducing photocatalyst in constructing S-scheme heterojunctions to overcome these limitations.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Rimple Kalia, Bilal Masood Pirzada, Ravi K. Kunchala, Boddu S. Naidu
Summary: In this study, a TaON/CdS semiconductor heterojunction photocatalyst was synthesized by a simple precipitation method. The band positions of the two semiconductors were optimized to achieve maximum hydrogen evolution. The formation of a heterojunction between the semiconductors was confirmed by XRD, XPS, and TEM analysis. Among the synthesized catalysts, the 3% TaON/CdS heterostructure showed the highest hydrogen evolution activity under both natural solar light and visible light generated by a xenon lamp without the addition of a noble metal co-catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Shuai Yang, Han Yang, Jun Zhang, Jiacen Lin, Chao Chen, Xiaoshan Xiong, Junhua Xi, Zhe Kong, Lihui Song, Jinghui Zeng
Summary: A novel h-CdS/c-CdSe ternary compound heterojunction catalyst CdSS was constructed from isomeric hexagonal CdS and cubic CdSe. Under different S:Se ratio, CdSS displayed continuous shift between related CdS and CdSe peaks, confirming the formation of atomic level ternary compound heterojunction. The CdSS catalysts showed boosted photocurrent density and decreased Tafel slope compared to CdS and CdSe. The work develops a new strategy to construct high efficiency atomic level ternary compound heterojunction between isomerism homologous element compounds.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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
Chemistry, Physical
Kai Dou, Yukai Lu, Rongchen Wang, Haopeng Cao, Chao Yao, Jialong Liu, Natalia Tsidaeva, Wei Wang
Summary: The formation of an efficient (1T/2H)-MoS2/CoFe2O4 heterojunction via a green hydrothermal method greatly enhances the photocatalytic removal of organic dyes. The MoS2/CoFe2O4 composite with a 2:1 M ratio shows the best performance, degrading 91.9% of methyl blue within 60 min. The outstanding photocatalytic and ferromagnetic properties, as well as the high reusability, make this heterojunction promising for wastewater treatment.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jiaqi Pan, Panhong Wang, Zhanfen Chen, Qi Yu, Peipei Wang, Mei Zhu, Weijie Zhao, Jingjing Wang, Yingying Zheng, Chaorong Li
Summary: The Pt-free 1T/2H-MoS2/CdS/MnOx hollow core-shell nanocomposites exhibit enhanced HER performance and overall water splitting performance, mainly due to the well HER/OER synergy and formation of hollow core-shell structure.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Physical
Zhuzhu Zhang, Rui Ji, Qimeng Sun, Jinghui He, Dongyun Chen, Najun Li, Hua Li, Antonio Marcomini, Qingfeng Xu, Jianmei Lu
Summary: Constructing photocatalysts with excellent visible light utilization efficiency and high-efficiency photo-generated charge transfer rate is crucial for the photodegradation of organic pollutants in wastewater. In this study, oxygen-doped graphitic carbon nitride (g-C3N4) was prepared and used as a responsive material for a wide range of visible light. CdS nanoparticles were then anchored onto the g-C3N4 to form a Z-scheme heterojunction, which facilitated interfacial charge separation. The results showed that the oxygen-doped g-C3N4/CdS-3 displayed a significantly higher degradation rate for 2-chlorophenol compared to g-C3N4.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xiadiye Aihemaiti, Xin Wang, Zhuanhu Wang, Yuexia Bai, Kezhen Qi, Yuhua Ma, Kaixin Tao, Mayire Simayi, Nueramina Kuerban
Summary: A CdS/HRP hierarchical heterostructure was designed to enhance the photoreduction rate for Cr(VI). The 1%CdS/HRP composite exhibited the strongest photocatalytic activity when the mass fraction of CdS was 1%. The heterojunction between CdS and HRP contributed to improved charge separation and transfer, leading to enhanced photocatalytic performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Tong Song, Xiao Zhang, Katarzyna Matras-Postolek, Ping Yang
Summary: Monodispersed WP nanoparticles were encapsulated in nitrogen-doped carbon (NC) layers to form WP@NC nanocomposites. These nanocomposites showed enhanced electrocatalytic hydrogen evolution reaction (HER) activities and improved photocatalytic hydrogen generation and 4-NP elimination efficiencies.
Article
Chemistry, Physical
Tong Song, Xiao Zhang, Cong Xie, Ping Yang
Summary: In this paper, Ni nanoparticles embedded N-doped carbon nanotubes (CNTs) were decorated on superior thin g-C3N4 nanosheets as a co-catalyst for enhanced photocatalytic performance. The Ni-decorated CNTs (NiCNTs) demonstrated admirable conductivity and unique one-dimensional structure, generating more active sites and efficient charge transfer. The N-doped CNTs promoted charge separation, while Ni nanoparticles trapped photogenerated electrons for photoreduction reaction. The g-C3N4/NiCNTs composites showed excellent hydrogen generation rate and pollutant removal efficiency.
Article
Electrochemistry
Chuanjie Wang, Xiao Zhang, Yuanna Zhu, Kaili Zhu, Xinxin Luan, Ping Yang
Summary: Interface engineering is crucial for enhancing the performance of heterostructures. In situ growth facilitates the formation of heterostructures with ideal interface characteristics. By treating Ni-N-CNT with selenium, a well-developed interface NiSe2/Ni-N-CNT was created, improving carrier transfer efficiency and increasing electrochemical active sites. NiSe2/Ni-N-CNT exhibited excellent performance in both HER and OER.
ELECTROCHIMICA ACTA
(2023)
Article
Biodiversity Conservation
Hongyu Zhang, Xiao Zhang, Cong Xie, Wenbin Shi, Ping Yang
Summary: Accordion-like Ti3C2Tx MXene was successfully prepared via chemical etching, and TiO2 nanocrystals were grown on Ti3C2Tx nanosheets by in-situ oxidation using a powerful alkaline solution. The ratio of Ti3C2Tx and TiO2 was optimized, resulting in TiO2/Ti3C2Tx composites with excellent photocatalytic activity, especially for NO removal. The microstructure of TiO2/Ti3C2Tx composites contributed to the improvement of the separation and transfer efficiency of photogenerated carriers. The composite sample synthesized at 75 degrees Celsius showed the best NO removal efficiency, removing 70% of NO at a concentration of 600 ppb. This study offers a new approach for preparing high-performance MXene-based photocatalysts.
ECOLOGICAL INDICATORS
(2023)
Article
Chemistry, Physical
Xiao Zhang, Katarzyna Matras-Postolek, Ping Yang, San Ping Jiang
Summary: This paper investigates the construction of Z-scheme heterojunctions using the concept of nanoarchitectonics to promote solar-assisted charge carrier separation in carbon-based materials. The heterostructure photocatalyst WOx/Cu-g-C3N4 was fabricated by immobilizing WOx on Cu-modified g-C3N4 nanosheets, resulting in enhanced photocatalytic performance due to improved charge transport. The optimized ratio of WOx to Cu-g-C3N4 exhibited high H2 evolution (4560 μmol/g·h) and CO reduction (5.89 μmol/g·h) rates.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xiao Zhang, Ping Yang
Summary: This review summarizes the latest progress in the development of few-layered graphitic carbon nitride (g-C3N4) nanosheets based composite materials for photocatalytic H-2 generation and CO2 reduction, with a focus on nanoarchitectonics. The photocatalytic activity of these composites depends on the composition, morphology, and microstructure of the material. The review covers the enhanced photogenerated carrier separation and transfer, extended light absorption, mechanism, and progress in the study of various g-C3N4 based heterostructures, as well as the challenges and recommendations for future studies.
Article
Materials Science, Multidisciplinary
Xiao Zhang, Katarzyna Matras-Postolek, Ping Yang
Summary: This study successfully synthesized WOx/Au-g-C3N4 heterostructures using the concept of nanoarchitectonics and demonstrated their outstanding photocatalytic performances, including high CO2 reduction and benzene to phenol conversion rates, as well as excellent NO removal rate, under full solar spectrum.
MATERIALS TODAY ADVANCES
(2023)
Article
Environmental Sciences
Song Tong, Xiao Zhang, Ping Yang
Summary: In this study, g-C3N4 nanosheets with abundant crystalline/amorphous interfaces were obtained by a rapid post-treatment at high temperature. This optimized the carrier mobility dynamics, enhanced the separation and transfer of charge carriers, and improved the photocatalytic properties of H2O2 and H2.
ENVIRONMENTAL RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Xiao Zhang, Ping Yang
Summary: This review focuses on the transfer and direct synthesis methods of all-inorganic cesium lead halide nanocrystals synthesized in solutions onto matrix materials, including growth of inorganic and organic shells, embedment in matrixes, and direct synthesis on substrates. Strategies to improve the stability and photoluminescence properties of the materials are also summarized, aiming to provide inspiration for the encapsulation of cesium lead halide nanocrystals with high brightness and stability in wide color gamut backlighting applications.
Article
Materials Science, Multidisciplinary
Jinchan He, Xiao Zhang, Cong Xie, Hsueh Shih Chen, Ping Yang
Summary: In this study, inorganic cesium halide lead perovskite nanocrystals (NCs) were encapsulated in hollow mesoporous spheres assembled with AlO(OH) nanosheets to enhance their stability. The hollow AlO(OH) assemblies were synthesized hydrothermally, and the in situ growth of CsPbX3 NCs was achieved in dimethylformamide solutions. The resulting CsPbX3@AlO(OH) composites exhibited improved stability and high photoluminescence quantum yields, and were further mixed with polystyrene (PS) to prepare flexible photoluminescent films with excellent bendable and foldable properties.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Cong Xie, Xiao Zhang, Hsueh Shih Chen, Ping Yang
Summary: The synergistic and post-treatment kinetics were studied to create highly bright and stable perovskite nanocrystals. Ligand and ion exchange mechanism were evaluated to improve the photoluminescence efficiency and stability. The results showed that the treated nanocrystals exhibited high efficiency and stability, suggesting potential applications in optoelectronics.
Article
Chemistry, Physical
Xingshuai Ji, Baogang Xu, Hongyu Zhang, Xiao Zhang, Ping Yang
Summary: This study successfully developed a new composite material for supercapacitors and water splitting catalysts, with high performance and potential.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Tong Song, Xiao Zhang, Katarzyna Matras-Postolek, Ping Yang
Summary: A one-step thermal polymerization method was used to create metallic cobalt clusters on graphitic carbon nitride nanosheets, with the size and distribution of the clusters controlled by subsequent acid treatment. The optimized nanoarchitectonics showed excellent photocatalytic activities, such as visible-light photocatalytic hydrogen generation and NO removal. Furthermore, heat treatment at high temperature resulted in the creation of cobalt clusters decorated N-doped carbon nanosheets, which exhibited ideal performance in various reactions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Wenbin Shi, Xiao Zhang, Hsueh Shih Chen, Katarzyna Matras-Postolek, Ping Yang
Summary: In this study, the stability and luminescence properties of CsPbI3 nanocrystals were successfully improved through Zn-derived ligand engineering. These nanocrystals showed advantages in LED applications, such as wide color gamut and good stability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Hongyu Zhang, Baogang Xu, Xiao Zhang, Ping Yang
Summary: In this study, raspberry-like TiO2 hollow spheres with large specific surface area and high pore volume were prepared. They exhibited high NO2 selectivity and excellent removal performance for NO.
ENVIRONMENTAL SCIENCE-NANO
(2022)