INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2023
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IF 7.2
Ming Li,Tongyan Ren,Yubao Li,Shuang Li,Ping He,Yao Xiao,Jiufu Chen
In this study, a series of promising binary hybrid heterojunction CdIn 2 S 4 /ZnS (CIS/ZnS) were constructed via a facile hydrothermal method . Credible characterization methods including powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV–vis diffuse reflectance spectra (DRS) were carried out to investigate the physicochemical properties the as-obtained photocatalysts . Photocatalytic water splitting for hydrogen evolution was performed to evaluate the photocatalytic activity of the photocatalyst. The results indicate that the light-harvesting ability could be markedly enhanced by decorating CdIn 2 S 4 on ZnS microspheres . Compared with the pristine CdIn 2 S 4 and ZnS, the hybrid photocatalysts present more efficient photocatalytic hydrogen production performance. Among composite photocatalysts, the 5% CIS/ZnS sample manifests the highest photocatalytic hydrogen production rate of 10.80 mmol g −1 h −1 , which is 2.6 and 5.4 times higher than that of ZnS and CdIn 2 S 4 , respectively. Moreover, a type-I band alignment mechanism was prudently put forward to interpret the photocatalytic hydrogen generation activity. The boosted photocatalytic hydrogen evolution activities of CIS/ZnS can be attributed to the enhanced light-harvesting ability, efficient separation and transfer of the photo-induced charge carriers, and inhibition of electrons and holes recombination of binary hybrid CIS/ZnS photocatalysts.
研究领域:
材料科学
·
能源化学
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Yingqi Chen,Yufei Cheng,Junfeng Zhao,Wenwan Zhang,Jianhua Gao,Hui Miao,Xiaoyun Hu
Antimony sulfide (Sb 2 S 3 ) is a relatively abundant and environmentally friendly emerging photovoltaic material, which has been gradually applied in solar cells and photocatalysis. It has high light absorption capacity, but it suffers many deep-level defects and is prone to recombination of electron-hole pairs within itself. Here, by constructing the Sb 2 S 3 /CdIn 2 S 4 S-scheme heterojunction, we avoided the problem that electrons and holes cannot be separated and transported effectively due to many Sb 2 S 3 defects (more recombination centers), and improved its application in the field of photoelectrochemical water splitting. Meanwhile, in order to further improve the performance of Sb 2 S 3 /CdIn 2 S 4 photoelectrode, we introduced CdS energy platform between Sb 2 S 3 and CdIn 2 S 4 to form a Sb 2 S 3 /CdS/CdIn 2 S 4 cascaded S-scheme heterojunction. Compared with Sb 2 S 3 monomer, Sb 2 S 3 /CdS/CdIn 2 S 4 had higher absorbance intensity, IPCE value, ABPE value, and lower charge transfer resistance. In addition, the photocurrent density of the Sb 2 S 3 /CdS/CdIn 2 S 4 photoelectrode was about 4.20 mA/cm 2 (1.23 V vs. RHE), which was 1.3 times higher than that of the Sb 2 S 3 /CdIn 2 S 4 photoelectrode (3.29 mA/cm 2 ) and 3.2 times higher than that of monomer Sb 2 S 3 photoelectrode (1.32 mA/cm 2 ). This method offers new prospects for optimizing the performance of antimony chalcogenides photoelectrodes for photoelectrochemical water splitting.
研究领域:
材料科学
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能源科学
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光催化
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DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
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IF 5.4
Xueyan Huang,Hongyan Yu,Gaopan Tang,Shihui Zhang,Wanling Cai,Lu Chen
Photocatalytic water splitting into H 2 is considered an economical and environmentally friendly method for H 2 evolution, and rationally designing a non-noble metal cocatalyst maintains an enormous effect on a photocatalytic system. Herein, with metallic FeP, introducing n-type semiconductor CdIn 2 S 4 induces a rapid charge transfer across the FeP/CdIn 2 S 4 Schottky junction, furthering improved photocatalytic activity. The optimal FeP/CdIn 2 S 4 composite presents an impressive hydrogen evolution rate of 1.28 mmol·g −1 ·h −1 , which was nearly 9.8 times higher than that of CdIn 2 S 4 (0.13 mmol·g −1 ·h −1 ). Quantum efficiency can reach up to 14.5 % at 420 nm. Systematic investigations reveal that FeP can be reserved as a cocatalyst, providing more reactive sites and lower overpotential for hydrogen evolution. This work offers a new strategy for designing and fabricating efficient photocatalytic energy conversion cocatalysts.
研究领域:
材料科学
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能源转换
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光催化技术
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DOI
高影响因子
Nano Research
·
2017
·Vol. 10
·期 8
·2699-2711
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IF 7.354
Wang Ting,Chai Yuanyuan,Ma Dekun,Chen Wei,Zheng Weiwei,Huang Shaoming
Nanomaterial shapes can have profound effects on material properties, and therefore offer an efficient way to improve the performances of designed materials and devices. The rational fabrication of multidimensional architectures such as one dimensional (1D)–two dimensional (2D) hybrid nanomaterials can integrate the merits of individual components and provide enhanced functionality. However, it is still very challenging to fabricate 1D/2D architectures because of the different growth mechanisms of the nanostructures. Here, we present a new solvent-mediated, surface reaction-driven growth route for synthesis of CdS nanowire (NW)/CdIn 2 S 4 nanosheet (NS) 1D/2D architectures. The as-obtained CdS NW/CdIn 2 S 4 NS structures exhibit much higher visible-light-responsive photocatalytic activities for water splitting than the individual components. The CdS NW/CdIn 2 S 4 NS heterostructure was further fabricated into photoelectrodes, which achieved a considerable photocurrent density of 2.85 mA·cm −2 at 0 V vs. the reversible hydrogen electrode (RHE) without use of any co-catalysts. This represents one of the best results from a CdS-based photoelectrochemical (PEC) cell. Both the multidimensional nature and type II band alignment of the 1D/2D CdS/CdIn 2 S 4 heterostructure contribute to the enhanced photocatalytic and photoelectrochemical activity. The present work not only provides a new strategy for designing multidimensional 1D/2D heterostructures, but also documents the development of highly efficient energy conversion catalysts.
研究领域:
材料科学
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能源科学
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纳米技术
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产品关联
DOI
高影响因子
Catalysts
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2020
·Vol. 10
·期 12
·1455
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IF 3.52
Qi Li,Wanli Liu,Xuejian Xie,Xianglong Yang,Xiufang Chen,Xiangang Xu
Co-catalyst deposition is used to improve the surface and electrical properties of photocatalysts. In this work, MoSx/CdIn2S4nanocomposites were prepared by a facile hydrothermal and photodeposition route. The basic crystalline phases and morphology of the as-prepared samples were determined, and these results showed that MoSxwas tightly anchored onto CdIn2S4by sharing the same S atom. In the hydrogen production experiments, MoSx/CdIn2S4-40 displayed the optimal photocatalytic hydrogen production yield in 4 h. The H2evolution rate reached 2846.73 μmol/g/h, which was 13.6-times higher than that of pure CdIn2S4. Analyzing the photocatalytic enhancement mechanisms revealed that this unique structure had a remarkable photogenerated electron-hole pair separation efficiency, rapid charge carrier transfer channels, and more abundant surface reaction sites. The use of co-catalyst (MoSx) greatly improved the photocatalytic activity of CdIn2S4.Keywords:co-catalyst;photocatalyst;hydrogen production;CdIn2S4;MoSx
研究领域:
材料科学
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能源科学
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产品关联
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 6
·2508
·
IF 4.6
Hong Qiu,Xiaohui Ma,Hongxia Fan,Yueyan Fan,Yajie Li,Hualei Zhou,Wenjun Li
Molybdenum-based cocatalyst being used to construct heterojunctions for efficient photocatalytic H2production is a promising research hotspot. In this work, CdIn2S4was successfully closely supported on bulk Mo2C via the hydrothermal method. Based on their matching band structures, they formed a Type Ⅰ heterojunction after the combination of Mo2C (1.1 eV, −0.27 V, 0.83 V) and CdIn2S4(2.3 eV, −0.74 V, 1.56 V). A series of characterizations proved that the heterojunction composite had higher charge separation efficiency compared to a single compound. Meanwhile, Mo2C in heterojunction could act as an active site for hydrogen production. The photocatalytic H2production activity of the heterojunction composites was significantly improved, and the maximum activity was up to 1178.32 μmmol h−1g−1for 5Mo2C/CdIn2S4composites. 5Mo2C/CdIn2S4heterojunction composites possess excellent durability in three cycles (loss of 6%). Additionally, the mechanism of increased activity for composites was also investigated. This study provides a guide to designing noble-metal-free photocatalyst for highly efficient photocatalytic H2evolution.Keywords:noble-metal-free;Mo2C;CdIn2S4;heterojunction;carrier separation
研究领域:
材料科学
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催化化学
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Chunxue Li,Yidong Zhao,Xiaoteng Liu,Pengwei Huo,Yongsheng Yan,Lili Wang,Guangfu Liao,Chunbo Liu
The design and development of high-performance photocatalysts from three aspects of simultaneous enhancement of light harvest, carrier migration rate, and redox reaction rate is still a great challenge. Herein, a novel Co 9 S 8 /CdIn 2 S 4 ohmic junction with a robust internal electric field (IEF) is successfully prepared via hydrothermal and in situ synthesis methods and is used for effective photocatalytic H 2 evolution (PHE). Under simulated visible light irradiation, the PHE rate of 5% Co 9 S 8 /CdIn 2 S 4 can reach 1083.6 μmol h −1 g −1 , which is 6.4 times higher than that of CdIn 2 S 4 (170.5 μmol h −1 g −1 ). The enhanced PHE performance is mainly ascribed to the improved light harvest and carrier separation efficiency and fast surface H 2 evolution kinetics. Moreover, Co 9 S 8 nanotubes serve as promising Co-based cocatalysts that can evidently enhance PHE activity. Additionally, Co 9 S 8 /CdIn 2 S 4 shows superior stability because the photogenerated carrier transfer path restrains the photocorrosion behavior. The photocatalytic mechanism is proposed based on experimental results and DFT calculations. This work offers new insights for the design and development of highly active photocatalysts from interface engineering.
研究领域:
材料科学
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能源化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Yige Qi,Guoxi Zhou,Yunchao Wu,Hou Wang,Zhiyong Yan,Yan Wu
Semiconductor photocatalysis was considered as an ideal solution to energy shortages. Herein, a novel ternary In 2 O 3 /In 2 S 3 -CdIn 2 S 4 (IOSC) nanotube (NTs) photocatalyst was successfully constructed via in situ growth of In 2 S 3 and CdIn 2 S 4 nanosheets onto In 2 O 3 skeleton. It was used for the efficient and stable photo-production of hydrogen from water splitting. The rationally designed IOSC NTs displayed significantly enhanced photocatalytic H 2 production under visible light irradiation (≥420 nm), with the highest H 2 yield determined to be 2892 μmol·g −1 , which is much higher than that of pristine In 2 S 3 and In 2 O 3 /In 2 S 3 (IOS) NTs. Cyclic testing has shown that the IOSC2 product remains stable after four cycles of repeated use. The enhanced photocatalytic activity was contributed by its tightly bound tube-nanosheets heterogeneous structure and superior light absorption. Photoelectrons transfer in IOSC2 follows a Z-scheme mechanism, which greatly facilitates its utilization of photogenerated electrons and prevents CdIn 2 S 4 from undergoing photo-corrosion affecting material stability. This work demonstrates the key role of in situ growth in the interface design of ternary heterostructures.
研究领域:
材料科学
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能源化学
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产品关联
DOI
PubMed
高影响因子
Environmental Science-Nano
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2021
·Vol. 8
·期 5
·1389-1397
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IF 8.131
Cheng Cheng,Dongyun Chen,Najun Li,Hua Li,Qingfeng Xu,Jinhui He,Jianmei Lu
Hexavalent chromium (Cr(VI)) poses a serious threat to the environment and human health due to its high-toxicity and carcinogenicity. For efficient removal of Cr(VI), semiconductor photocatalytic reduction methods have been investigated, especially those using hollow structures. In this work, a hollow In2S3/CdIn2S4 composite photocatalyst was prepared via ion exchange for the reduction of Cr(VI). The microstructure, composition, optical properties, and elements of the In2S3/CdIn2S4 composites were characterized via scanning electron microscopy, X-ray diffraction, UV-vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. Because of the molecular level heterojunction constructed through ion exchange and the hollow structure, the prepared photocatalyst demonstrated excellent catalytic properties for Cr(VI) reduction. Besides, a Cr(VI) aqueous solution (50 mg L−1) was reduced within 12 min. Importantly, the activity and structure of the photocatalyst were maintained after five cycling experiments, which demonstrates its advantageous stability. Finally, the photocatalytic mechanism is discussed in detail.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Jinyi Zhu,Yufei Cheng,Wenwan Zhang,Junfeng Zhao,Qian Sun,Xiaoyun Hu,Hui Miao
As an n-type narrow band gap ternary sulfide semiconductor, CdIn 2 S 4 exhibits favourable photoelectrochemical (PEC) water splitting performance. However, severe photogenerated carrier recombination and slow surface dynamics at the interface of monomer CdIn 2 S 4 restrict its application. Herein, we addressed the problem by fabricating a TiO 2 /CdIn 2 S 4 -annealed photoanode by two-step anodization method, hydrothermal method and annealing treatment. As a result, the TiO 2 /CdIn 2 S 4 -annealed photoanode exhibited 6.21 mA/cm 2 at 1.23 V vs . RHE, which was much higher than the pure CdIn 2 S 4 (0.05 mA/cm 2 ) and TiO 2 (0.14 mA/cm 2 ), and was 9 times higher than TiO 2 /CdIn 2 S 4 (0.68 mA/cm 2 ). This excellent performance can be attributed to the synergistic effect of interfacial charge regulation (introducing TiO 2 NTs as electron transport layer) and surface defect regulation (introducing sulfur vacancies as OER active centers to facilitate hole transport). By this way, the photogenerated electrons and holes of CdIn 2 S 4 were simultaneously extracted in opposite directions. Experimental characterizations confirmed the introduction of TiO 2 and sulfur vacancies can enhance the separation and injection efficiency of carriers. This work provides a new idea for regulating interface charges and surface defects to improve the PEC activity of CdIn 2 S 4 .
研究领域:
材料科学
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能源科学
✓ 已验证
DOI
高影响因子
Molecular Catalysis
·
2017
·
IF 0
Hong Liu,Zhe Zhang,Jingchai Meng,Jiang Zhang
Photocatalytic conversion of CO 2 into hydrocarbon fuels using semiconductor photocatalysts has attracted great attention, which is considered as a promising approach to resolve the energy shortage and greenhouse effect. In this work, ordered mesoporous g-C 3 N 4 (mpg-C 3 N 4 ) nanosheets supported CdIn 2 S 4 nanocomposites were successfully fabricated by a hard-template combinated with hydrothermal method. The hybrids showed highly efficient photocatalytic activities for the reduction of CO 2 to CH 3 OH under visible-light irradiation. The optimized CdIn 2 S 4 /mpg-C 3 N 4 photocatalyst exhibited a high CH 3 OH-production rate of 42.7 μmol g −1 h −1 at a mpg-C 3 N 4 content of 20 wt%. This rate was 1.8 times higher than that of pure CdIn 2 S 4 . The significant enhancement of photocatalystic activity was mainly ascribed to the increased CO 2 adsorption capacity and the improved separation and transfer of photogenerated electron-hole pairs at the intimate interface of CdIn 2 S 4 /mpg-C 3 N 4 heterojunctions. Furthermore, the hybrid photocatalysts displayed excellent stability under visible-light. A possible mechanism of enhanced photocatalytic activity of CdIn 2 S 4 /mpg-C 3 N 4 composite on photocatalytic reduction of CO 2 was also proposed. This work may provide some useful information for the future design and practical application of multifunctional hybrid photocatalysts in photocatalytic reduction of CO 2 .
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Shangyuan Yu,Fengjue Wang,Meng Chen
The influence of morphology on the photocatalytic performance of catalysts is a critical aspect that merits further exploration. This study successfully synthesized a series of CdIn 2 S 4 /self-assembled g-C 3 N 4 photocatalysts with varying morphologies and structures via an in-situ deposition approach. The unique combination of g-C 3 N 4 ′s surface curvature and the radial-spreading layers significantly contributed to the superior photocatalytic activity observed in the optimal sample. This sample achieved an impressive 91.3 % degradation of methyl orange within 30 min and an 81.6 % degradation of tetracycline hydrochloride in 120 min. These degradation rates surpassed those of pristine g-C 3 N 4 by factors of 13.12 and 1.14, respectively. The findings of this research offer a promising strategy for designing highly active heterojunction photocatalysts tailored for pollutant removal and guiding the uniform deposition of CdIn 2 S 4 .
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）