Using full solar spectrum for energy conversion and environmental remediation is a major challenge, and solar-driven photothermal chemistry is a promising route to achieve this goal. Herein, this work reports a photothermal nano-constrained reactor based on hollow structured g-C N @ZnIn S core-shell S-scheme heterojunction, where the synergistic effect of super-photothermal effect and S-scheme heterostructure significantly improve the photocatalytic performance of g-C N . The formation mechanism of g-C N @ZnIn S is predicted in advance by theoretical calculations and advanced techniques, and the super-photothermal effect of g-C N @ZnIn S and its contribution to the near-field chemical reaction is confirmed by numerical simulations and infrared thermography. Consequently, the photocatalytic degradation rate of g-C N @ZnIn S for tetracycline hydrochloride is 99.3%, and the photocatalytic hydrogen production is up to 4075.65 µmol h g , which are 6.94 and 30.87 times those of pure g-C N , respectively. The combination of S-scheme heterojunction and thermal synergism provides a promising insight for the design of an efficient photocatalytic reaction platform.
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http://dx.doi.org/10.1002/smll.202207499 | DOI Listing |
J Colloid Interface Sci
January 2025
Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China. Electronic address:
The construction of ultra-close 2D atomic-thickness Van der Waals heterojunctions with high-speed charge transfer still faces challenges. Here, we synthesized single-layer ZnInS and g-CN, and introduced silver single atoms to regulate Van der Waals heterojunctions at the atomic level to optimize charge transfer and catalytic activity. At the atomic scale, the impact of detailed structural differences between the two characteristic surfaces of ZnInS ([Zn-S] and [In-S]) on catalytic performance has been first proposed.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China. Electronic address:
Construction of hierarchical architecture with suitable band alignment for graphitic carbon nitride (g-CN) played a pivotal role in enhancing the efficiency of photocatalysts. In this study, a novel attapulgite-intercalated g-CN/ZnInS nanocomposite material (ZIS/CN/ATP, abbreviated as ZCA) was successfully synthesized using the freeze-drying technique, thermal polymerization, and a simple low-temperature hydrothermal method. Attapulgite (ATP) was intercalated into g-CN to effectively regulate its interlayer structure.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2024
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Zhongguancun East Road, Haidian District, Beijing, 100190, China.
The rational design of visible-light-responsive catalysts is crucial for converting solar energy into hydrogen energy to promote sustainable energy development. In this work, a C─S─C bond is introduced into g-CN (CN) through S doping. With the help of the flexible C─S─C bond under specific stimuli, a hollow coral-like porous structure of S-doped g-CN (S-CN) is synthesized for the first time.
View Article and Find Full Text PDFJ Environ Manage
August 2024
Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China. Electronic address:
The interfacial charge transfer ability is a decisive factor influencing the photocatalytic performance of composite photocatalysts. Compared with heterojunctions that combine two or more semiconductors with different properties, homojunctions that combine two semiconductors with similar properties can accelerate the interfacial charge shift and achieve higher photocatalyticability. In this study, a ZnInS/ZnInS homojunction photocatalyst (ZIS-5) with a ZnInS to ZnInS molar ratio of 5:1 was synthesized by selecting ZnInS nano-microspheres as the substrate material and growing ZnInS flocs on the nano-microspheres.
View Article and Find Full Text PDFMolecules
May 2024
Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Haizhou, Lianyungang 222005, China.
Hydrogen production technology has triggered a research boom in order to alleviate the problems of environmental pollution and the pressure on non-renewable energy sources. The key factor of this technology is the use of an efficient photocatalyst. g-CN is a typical semiconductor photocatalytic material that is non-toxic and environmentally friendly and does not cause any serious harm to human beings.
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