Article
Engineering, Environmental
Jia Yan, Zhilong Song, Hongping Li, Hui Xu, Lawrence Yoon Suk Lee
Summary: The heterostructure of graphitic carbon nitride and tin oxide shows exceptional performance in photocatalytic hydrogen evolution reaction, with enhanced charge separation efficiency through interface engineering. The proposed mechanism explains the enhancement in photoactivity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Sankar Sekar, V Preethi, S. Saravanan, Deuk Young Kim, Sejoon Lee
Summary: The synthesis and characterization of biomass activated carbon-decorated cobalt oxide nanocomposites for solar-stimulated photocatalytic hydrogen production from sulphide wastewater is reported. The nanocomposites showed enhanced hydrogen production efficiency under solar irradiance, indicating great potential for green photocatalytic wastewater splitting.
Article
Chemistry, Physical
Christian Mark Pelicano, Jiaxin Li, Maria Cabrero-Antonino, Ingrid F. Silva, Lu Peng, Nadezda V. Tarakina, Sergio Navalon, Hermenegildo Garcia, Markus Antonietti
Summary: We have successfully designed carbon/potassium poly(heptazine imide) heterostructures via a one-step salt-melt assisted condensation method for efficient photocatalysis. By hybridizing adenine-derived carbonaceous material (Ad-carbon) with KPHI, the photocatalytic activity for H-2 evolution and H2O2 production significantly improved. We found that Ad-carbon acts as both an electron acceptor and a photosensitizer, and the intimate heterojunction between Ad-carbon and KPHI promotes charge separation and extends carrier lifetime. Electrocatalysis experiments confirmed that coupling Ad-carbon with KPHI enhances surface reaction kinetics for H-2 evolution and O-2 reduction reactions. The visual evidence of superior charge transport in the hybrid photocatalyst is demonstrated by the uniform distribution of smaller Pt nanoparticles on the carbon regions, which contributes to the increased catalytic activity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Guoqiang Zhang, Yangsen Xu, Jinyu Zhu, Yongliang Li, Chuanxin He, Xiangzhong Ren, Peixin Zhang, Hongwei Mi
Summary: The role of exciton dissociation in charge separation dominated by in-plane crystallinity was rarely studied in polymeric carbon nitride (CN) photocatalysis. In this study, the relationship between exciton dissociation, carrier mobility, conductivity, charge separation, and photocatalytic activity was investigated using ten types of crystalline carbon nitride (CCN) with different in-plane crystallinity. It was found that the improved carrier mobility and conductivity were more responsible for the increased charge separation and photocatalytic activity than the slight change in exciton dissociation efficiency (EDE). This study also reported the first case of overall water splitting in CCN of poly (heptazine imide) structure, resulting from optimized in-plane crystallinity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Materials Science, Ceramics
V. Navakoteswara Rao, P. Ravi, M. Sathish, K. K. Cheralathan, B. Neppolian, M. Mamatha Kumari, M. V. Shankar
Summary: A hierarchical structure composed of Pt@Co3O4/TiO2 (CTP) ternary nanocomposite was synthesized and demonstrated for its enhanced and durable production of hydrogen from glycerol under simulated solar light irradiation. The optimized composition showed a hydrogen production rate of 19.2 mmol h(-1) g(cat)(-1). The heterojunction formed in the ternary system remarkably enhanced the visible light absorption properties and charge separation in CTP, leading to improved and durable photocatalytic efficiency towards hydrogen production.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jinnan Liang, Xiaohong Yang, Haitao Fu, Xiaoli Ran, Chen Zhao, Xizhong An
Summary: In this study, carbon dots (CDs) were introduced onto graphite carbon nitride (g-C3N4) nanosheets, resulting in improved photocatalytic hydrogen evolution performance. The optimized CDs/g-C3N4 nanocomposites exhibited superior hydrogen evolution rate and apparent quantum efficiency under visible light irradiation. The contribution of CDs to the enhancement of photocatalytic hydrogen evolution was thoroughly discussed through experimental characterization and density functional theory (DFT) calculation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Jiancang Chen, Guangchun Xiao, Gaigai Duan, Yongzhong Wu, Xiujian Zhao, Xiao Gong
Summary: The combination of CDs with porous materials shows great potential in overcoming the limitations of individual CDs and producing new functionalities, leading to a wide range of applications across different fields. Various studies have focused on the CDs/porous materials composites, highlighting their excellent performance and potential for future developments.
CHEMICAL ENGINEERING JOURNAL
(2021)
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
Biochemistry & Molecular Biology
Xing Liu, Longxin Hu, Yujie Zhang, Hua Lai, Gang Peng, Junhua Li, Rongying Zeng, Zhengji Yi
Summary: In this study, carbon nitride quantum dots (CNQDs)-modified cobalt phosphate (CoPi) composites CNQDs/CoPi-x (x=1, 2, 3) were synthesized and characterized. The modified CNQDs/CoPi-x showed enhanced photocatalytic activity and stability for hydrogen evolution compared to pure CoPi. The highest hydrogen evolution rate was achieved by CNQDs/CoPi-2, which was 2.4 times higher than that of CoPi. The improved performance was attributed to boosted electron transfer and visible-light activity of CNQDs.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Xing Kang, Jinwen Shi, Huaiyu Lu, Guiquan Zhang, Jiantao Yao, Lulu Hou, Feng Chen, Samuel S. Mao, Vassilios D. Binas, Shaohua Shen
Summary: A series of type-II BaSnO3/g-C3N4 heterojunction composites have been prepared using a facile solvothermal method, with BaSnO3 acting as an electron transport promoter for photocatalytic H-2 production under visible light for the first time. BaSnO3 demonstrates excellent performance in collecting and transferring photogenerated electrons, leading to effective inhibition of electron-hole recombination and significantly enhancing the photocatalytic H-2 production activity of the composite compared to pristine g-C3N4. This study provides valuable insights for utilizing electron transport materials in photocatalysis.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Chemistry, Physical
Chao Zhou, Tianlin Wang, Dong Li, Jinyuan Wang, Run Shi, Tierui Zhang
Summary: In this study, a facile synthesis method was used to prepare SnNb2O6 nanoplates, which exhibited excellent visible light photocatalytic H-2 production activity, about 10 times higher than that of bulk samples. The enhanced photocatalytic activity can be attributed to its nanoplate-like architecture, larger specific surface area, and better charge transfer efficiency.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Ping Wang, Wenwu Shi, Na Jin, Zhenyang Liu, Yongchen Wang, Tong Cai, Katie Hills-Kimball, Hanjun Yang, Xiaotian Yang, Yongdong Jin, Xinzhong Wang, Jing Zhao, Ou Chen
Summary: In-depth understanding of charge carrier transfer dynamics in artificial catalytic systems is crucial for designing future efficient photocatalysts. By synthesizing ZnSe decorated quantum dots, the processes of electron transfer and hole migration were observed under light illumination, providing a method to modulate the performance of photocatalytic systems.
Article
Engineering, Multidisciplinary
Amir Navidfar, Makbule Irmak Peker, Esranur Budak, Caner Unlu, Levent Trabzon
Summary: This study improves the dispersion of nanofillers in polyurethane matrices by preparing three-dimensional nanostructures and adding carbon quantum dots, resulting in enhanced performance of the nanocomposites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Chemical
Chi-Jung Chang, Yu-Chieh Kao, Kuen-Song Lin, Chin-Yi Chen, Chun-Wen Kang, Ting-Hao Yang
Summary: Loading appropriate semiconductor nanomaterials on carbon fiber cloth is an effective method to fabricate flexible and high-performance photocatalysts. The CF cloth@BiOBr/CuO photocatalyst shows significantly enhanced H2 production activity compared to the CF cloth@BiOBr photocatalyst, due to the presence of p-n heterojunctions and optimized amounts of BiOBr and CuO.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Multidisciplinary
Faxing Liu, Quanjun Xiang, Xigui Zhang, Haiping Zhou
Summary: In this study, Ni cocatalysts on a TiO2 composite photocatalyst with different graphene oxide (GO) contents were prepared using a hydrothermal method and characterized. It was found that the TiO2/GO/Ni nanosheet composites have a large specific surface area and can provide a large number of active sites for photocatalytic hydrogen production. GO can broaden the optical absorption range of TiO2 and absorb more visible light, stimulating the generation of more electron-hole pairs. Additionally, GO can collect electrons and promote the separation of electron-hole pairs. Ni, as a cocatalyst, can adsorb hydrogen ions and facilitate the migration of photogenerated electrons, thus ensuring high efficiency of the photocatalytic reaction.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Ting Zhu, Liangliang Zhu, Jing Wang, Ghim Wei He
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Multidisciplinary
Jing Wang, Chuan Fu Tan, Ting Zhu, Ghim Wei Ho
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2016)
Article
Chemistry, Multidisciplinary
Jing Wang, Ting Zhu, Ghim Wei Ho
Article
Chemistry, Physical
Jing Wang, Liangliang Zhu, Gokul Dharan, Ghim Wei Ho
JOURNAL OF MATERIALS CHEMISTRY A
(2017)
Review
Chemistry, Multidisciplinary
Min-Quan Yang, Jing Wang, Hao Wu, Ghim Wei Ho
Article
Materials Science, Multidisciplinary
Haixia Shen, Jiazhuang Guo, Luting Ling, Fucheng Li, Qing Li, Cai-Feng Wang, Jing Wang, Su Chen
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2019)
Article
Engineering, Environmental
Zhidong Li, Shangyi Li, Yiming Tang, Xukai Li, Jing Wang, Laisheng Li
CHEMICAL ENGINEERING JOURNAL
(2020)
Review
Chemistry, Multidisciplinary
Dingxin Xu, Zhidong Li, Laisheng Li, Jing Wang
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Physical
Shangyi Li, Jing Wang, Yiyun Ye, Yiming Tang, Xukai Li, Fenglong Gu, Laisheng Li
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Environmental Sciences
Kexin Chen, Xi Wang, Pengfei Xia, Jinxin Xie, Jing Wang, Xukai Li, Yiming Tang, Laisheng Li
Article
Chemistry, Physical
Xinyuan Tong, Zhidong Li, Weirui Chen, Jing Wang, Xukai Li, Jiaxin Mu, Yiming Tang, Laisheng Li
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Chemistry, Physical
Shangyi Li, Jun Huang, Zhuoxing Ye, Yaozhong Wang, Xukai Li, Jing Wang, Laisheng Li
Summary: In the peroxone process, the Co-Ce synergistic effect enhances the production of (OH)-O-center dot, leading to superior performance of SMT mineralization by Co10Ce10@MCM-48 catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Environmental Sciences
Jiaxin Mu, Shangyi Li, Jing Wang, Xukai Li, Weirui Chen, Xinyuan Tong, Yiming Tang, Laisheng Li
Summary: By constructing three-dimensional cerium oxide/SBA-16 nanocomposites, efficient removal of bisphenol A via catalytic ozonation with a mineralization rate of up to 60.9% was achieved. The materials exhibited large surface area and uniform pore distribution, promoting adsorption and mass transfer. Additionally, they enhanced ozone utilization efficiency and facilitated the formation of reactive oxygen species.
Article
Engineering, Environmental
Dingxin Xu, Yuhao Ma, Jing Wang, Weirui Chen, Yiming Tang, Xukai Li, Laisheng Li
Summary: This study reported an efficient and eco-friendly way based on photocatalysis to degrade amoxicillin, the most widely used antibiotic, which may offer fresh ideas for environmental remediation such as wastewater treatment and organic pollutant degradation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Jing Wang, Yee-Fun Lim, Ghim Wei Ho