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Article
Chemistry, Multidisciplinary
Xiaowen Ruan et al.
Summary: Designing S-Scheme heterojunctions can effectively improve the photocatalytic performance for hydrogen evolution by avoiding futile charge transport routes. In this study, a twin S-Scheme heterojunction consisting of graphitic C3N4 nanosheets, hydrogen-doped rutile TiO2 nanorods, and anatase TiO2 nanoparticles was proposed. The catalyst exhibited a high hydrogen evolution rate of 62.37 mmol g(-1) h(-1) and an apparent quantum efficiency of 45.9% at 365 nm. The significant enhancement of photocatalytic performance was attributed to the efficient charge separation and transfer facilitated by the unique twin S-Scheme structure. In situ X-ray photoelectron spectroscopy (XPS), electron spin resonance (ESR) spin-trapping tests, and other characterizations confirmed the charge transfer route in the twin S-Scheme.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Inorganic & Nuclear
Jianlong Wang et al.
Summary: This review systematically analyzes and summarizes the recent advances in graphitic carbon nitride (g-C3N4)-based composites, including preparation, characterization, modification, and environmental application. The focus is on the modification mechanisms and environmental applications. Concluding remarks and perspectives for further study are provided.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Medicine, Research & Experimental
Kifayat Ullah Khan et al.
Summary: Poor solubility and bioavailability are significant challenges in the pharmaceutical industry. Various strategies, including the use of nanomatrices, have been explored for improving drug solubility. This review article provides an overview of commonly used drug delivery systems and techniques and discusses their mechanisms of action.
Article
Engineering, Environmental
Xiaowen Ruan et al.
Summary: The intramolecular heterostructure graphitic carbon nitride with heptazine-triazine (CN-HT) prepared by one-step thermal polymerization method exhibits superior photocatalytic hydrogen evolution. This is attributed to efficient separation and transfer of photogenerated carriers as well as expanded visible light absorption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Zhihan Yu et al.
Summary: The crystalline C3N4(HCCN) samples prepared by multistep thermal polymerization with functional group modifications can form a special ternary intramolecular homojunction. This ternary structure accelerates interface charge transfer, reduces reverse charge recombination, and improves the dissociation of photogenerated charges.
Article
Chemistry, Physical
Xinghui Liu et al.
Summary: In this study, Co-g-C3N4/rGO single-atom catalysts (Co-CNG) were synthesized by coupling suitable single-atom cobalt with a promising substrate of g-C3N4/rGO. The Co-CNG exhibited comparable hydrogen evolution reaction (HER) performance with commercially available Pt/C samples and outperformed non-noble transition-metal catalysts. The presence of Co-N coordination structure was found to be responsible for the enhanced HER performance.
Article
Chemistry, Physical
Xiaowen Ruan et al.
Summary: This study reports a novel anatase-TiO2/H-rutile-TiO2 heterophase homojunction system with near optimum energy band alignment, which exhibits excellent photocatalytic hydrogen evolution performance. The heterophase homojunction enables rapid separation and transfer of photogenerated carriers, leading to enhanced photocatalytic performance.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Fei Ai et al.
Summary: Researchers report a heteropoly acid electrolyte that enables high-performance aqueous redox flow batteries (ARFBs) at low temperatures, thanks to its exceptionally low freezing point and high conductivity. This electrolyte shows promise in achieving stable and high-power operation of ARFBs in cold climate conditions.
Article
Multidisciplinary Sciences
Ji Wu et al.
Summary: The authors have successfully overcome the bottleneck of oxygen evolution on graphitic carbon nitride by using a simple fluorination strategy. This fluorination treatment reduces the accumulation of intermediate C=O and significantly improves the hydrogen evolution rate and continuous oxygen evolution.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Chuanbiao Bie et al.
Summary: A bifunctional dual-cocatalyst-modified photocatalyst is constructed for hydrogen evolution and selective pyruvic acid production. A two-step single-electron route for pyruvic acid production is proposed based on monitoring the intermediates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Hao Chen et al.
Summary: This study presents a facile construction method to obtain ND-g-C3N4 with abundant N vacancies, high crystallinity, hydrophilic surface, small particle size, and increased surface area. The unique structural properties of ND-g-C3N4 result in a significantly redshifted absorption edge and enhanced charge carrier separation, leading to superior photocatalytic hydrogen evolution performance three times higher than that of pristine g-C3N4.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Biochemistry & Molecular Biology
Atefeh Nasri et al.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2020)
Article
Chemistry, Physical
Yangsen Xu et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Multidisciplinary
Yuting Xiao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
