INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Wen Liu,Furong Ye,Yahao Zhao,Peng Liu,Changcun Han,Meng-Dai Luoshan,Jiayi Tian,Zhengwang Cheng,Yizhong Huang
In the quest for effective photocatalysts for hydrogen production via photocatalytic water splitting, ZnIn 2 S 4 has garnered considerable attention due to its high photocatalytic hydrogen evolution capability. In this study, boron-doped ZnIn 2 S 4 was successfully synthesized via a hydrothermal method , with a small amount of cobalt phosphate (Co-Pi) decorated on its surface. The hydrogen evolution rate of boron-doped ZnIn 2 S 4 was determined to be 5.2 mmol g −1 h −1 , surpassing that of pure ZnIn 2 S 4 by 1.68 times. Moreover, with the addition of Co-Pi to boron-doped ZnIn 2 S 4 , the hydrogen production rate escalated to 29.7 mmol g −1 h −1 , which is 9.58 times higher compared to pure ZnIn 2 S 4 . UV–vis analysis revealed that boron doping introduced new energy levels into ZnIn 2 S 4 , effectively narrowing the bandgap and enhancing light absorption wavelength range. Furthermore, PL and XPS analyses indicate that Co-Pi effectively captures photogenerated holes (h + ) in ZnIn 2 S 4 , retaining photogenerated electrons and overcoming the disadvantage of electron-hole pair recombination in ZnIn 2 S 4 . The doping and loading of Co-Pi as a cocatalyst ultimately contribute to enhancing hydrogen production efficiency, thereby significantly improving the photocatalytic hydrogen evolution capability of ZnIn 2 S 4 . This study provides a scalable idea for designing composite catalysts in which doping and co-catalysts work together.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Wenxue Zhao,Aihua Yan,Zigao Su,Fei Huang,Jixu Zhang,Ye Gao,Huaqi Yuan,Bolei Hui,Heng Wang
ZnIn 2 S 4 is a promising and typical semiconductor for photocatalytic water splitting into hydrogen production. However, the low charge-carrier utilization restricts its hydrogen evolution performance and practical application. In this work, a synergistic strategy of sulfur vacancy (S v ), internal electric field (IEF) and Mo-S bond was utilized for improving the charge-carrier utilization of MoS 2 /S v -MnS/ZnIn 2 S 4 composites. In particular, Z-scheme S v -MnS/ZnIn 2 S 4 heterojunction not only tackled the charge-carrier recombination problem but also improved the redox capability. Meanwhile, Schottky-type MoS 2 /S v -MnS contact further promoted the charge transfer through Mo-S bond “bridge”, accelerated the surface hydrogen reduction reaction kinetics, and thus boosted the charge-carrier utilization. As a result, the optimal MoS 2 /S v -MnS/ZnIn 2 S 4 catalysts could expeditiously produce 1.75 mL of hydrogen production within 3 h, and achieve a photocatalytic hydrogen evolution rate of 13.02 mmol g -1 h -1 . This work provides an ingenious method to synthesize ZnIn 2 S 4 -based photocatalysts with highly-efficient charge-carrier utilization.
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
高影响因子
CHEMOSPHERE
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2019
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IF 5.108
Runren Jiang,Donghai Wu,Guanghua Lu,Zhenhua Yan,Jianchao Liu
Broadening the range of light absorption and inhibiting charge carrier's recombination are vital to improving photocatalytic activity. In this study, a novel full spectrum light-driven carbon quantum dots (CQDs) modified 2D-2D ZnIn 2 S 4 /BiOCl van der Waals (VDW) heterostructures were prepared by a facile hydrothermal method. It exhibits remarkable degradation efficiency for removing various antibiotics from water (i.e. tetracycline (TC), ciprofloxacin (CIP) and oxytetracycline (OTC) under visible and near-infrared (NIR) light. The enhancement of photocatalytic performance is due to the 2D-2D VDW heterostructures and CQDs not only accelerate the interfacial charge separation and transfer but also provide massive reactive canters to facilitate degradation reaction. Besides, the optical absorption capacity of CQDs modified 2D-2D ZnIn 2 S 4 /BiOCl VDW heterostructures are obviously enhanced because of the up-conversion photoluminescence (UC-PL) properties of CQDs. Furthermore, the degradation process of TC is assessed by three-dimensional excitation-emission matrix (3D-EEMs) and liquid chromatography-tandem mass (LC-MS/MS) spectrometry analysis. Active species trapping experiments and electron spin resonance (ESR) testify that O 2 − , OH, and holes play a crucial part in the photocatalytic degradation process. This work affords a new promising approach for CQDs modified 2D/2D VDW heterojunction with enhanced photoactivity in organic pollutant degradation for full spectrum light utilization.
研究领域:
材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
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2024
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IF 5.7
Chong Ouyang,Xinyao Quan,Zhanglian Hong,Kehan Wang,Zi Ang Chen,Mingjia Zhi
In this work, polyethylene glycol is adopted as the solvent for the synthesis of ZnIn 2 S4 photocatalyst by the solvothermal method . Compared with the pristine ZnIn 2 S 4 synthesized in H 2 O solvent, those ones prepared in the polyethylene glycol solvent possess several unique features that are beneficial for photocatalytic CO 2 reduction, such as the increased Zinc vacancy level, the enlarged band gap, and the enhanced built-in internal electric field . These features allow for better charge separation efficiency, thereby improving the photocatalytic activity . The optimized ZnIn 2 S 4 can achieve a CO yield rate of 20.14 µmol/g/h at the gas-solid interface, which is 8.36 times that of the pristine ZnIn 2 S 4 .
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Junhao Huang,Qingyong Tian,Huajian Feng,Chao Xue,Jun Li,Qun Xu
Construction of photocatalysts with efficient light-harvesting and charge separation properties for boosting photocatalytic hydrogen (H 2 ) evolution is still a challenge. Herein, a three-dimensional (3D) porous WS 2 @C@ZnIn 2 S 4 skeleton heterojunction is successfully synthesized by epitaxial growth of ZnIn 2 S 4 nanosheets on the WS 2 @C skeleton. The optimal WS 2 @C@ZnIn 2 S 4 photocatalyst exhibits considerable photocatalytic H 2 evolution rate (11.15 mmol·g −1 ·h −1 ) and CO 2 -to-CH 4 production performance (43.29 μmol·g −1 ), respectively. The high photocatalytic performance can be ascribed to the fact that multiple light reflection and scattering behaviors originated from 3D architecture facilitates to prolong the interaction length between photons and catalyst, which significantly enlarging the light-harvesting ability and utilization efficiency. Importantly, highly conductive WS 2 @C skeleton can drive photo-induced charge transportation from ZnIn 2 S 4 to WS 2 co-catalyst via the interfacial charge-transfer pathways. The DFT calculations further demonstrate the promotional effects of multiple diffuse reflection and separation of photo-generated carriers in photocatalytic H 2 evolution.
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
Journal of Environmental Chemical Engineering
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2024
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IF 7.4
Min Zhang,Mingxuan Du,Yuhang Ren,Yun Zhu,Yunyuan Dong,Jianming Liao,Xiaobin Chen,Qifu Zheng,Hongfei Yin
Element doping is generally employed to modify photocatalysts by optimizing their electronic structure, and light absorption , as well as improving charge separation and transfer, which are key factors in photocatalysis . In this study, a simple one-step solvothermal route was employed to synthesize N, O co-doped ZnIn 2 S 4 . Systematical analyses demonstrate that the introduction of N and O co-doping leads to enhanced light absorption, increased specific surface areas , and improved charge separation and transfer in comparison to the unmodified ZnIn 2 S 4 . As expected, compared with bare ZnIn 2 S 4 , the as-prepared N, O co-doped ZnIn 2 S 4 exhibits superior photocatalytic H 2 evolution and Cr(VI) photoreduction performance. The H 2 evolution rate of the N, O co-doped ZnIn 2 S 4 reaches 2254.0 μmol g −1 h −1 , which is 2.8 times of pristine ZnIn 2 S 4 . Moreover, the Cr(VI) photoreduction efficiency reaches 99.5 % within 50 minutes, and the apparent kinetic constant is nearly 4 times the bare ZnIn 2 S 4 . This work contributes to the modification of ZnIn 2 S 4 for photocatalytic H 2 generation and Cr(VI) reduction.
研究领域:
材料科学
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环境科学
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能源科学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2021
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IF 5.316
Hongjie Liu,Jiarong Xv,Liwei Wang,Yixin Qian,Hao Fu,Minxuan Huang,Xiyong Chen
Constructing core-shell heterostructures can effectively improve the hindered issues such as decreased sensitivity and poor selectivity from the chemoresistive gas sensors in the complex atmosphere. Herein, an effective hydrothermal-water bath treatment combined strategy was designed to obtain the unique ethanol adsorption preferred ZnIn 2 S 4 sheet shell/In 2 O 3 sphere core (ZnIn 2 S 4 @In 2 O 3 ) nanosphere (NS) heterostructures. Particularly, according to the characterization and gas sensing test results, the chemoresistive sensor of ZnIn 2 S 4 @In 2 O 3 NS-2 with the highest chemisorbed oxygen concentration shows satisfactory selectivity to ethanol vapor, and the response is the highest (54) compared to other composite controls, which is almost 4-fold of that of the pure In 2 O 3 NS reference. Besides, the relatively lower working temperature (220 °C), low limit of detection (LOD, 30 ppb) and long-term stability were also obtained. The enhanced performance of the core-shell ZnIn 2 S 4 @In 2 O 3 NS-2 based sensor may be due to the synergistic effect between ZnIn 2 S 4 sheets and In 2 O 3 sphere moieties. Meanwhile, the large specific surface area from the outer shell of ZnIn 2 S 4 sheets is also another contribution factor, which supplies the most chemisorbed oxygen sites and transportation channels to promote the interfacial gas diffusion, catalytic oxidation and product desorption.
研究领域:
材料科学
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化学传感
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纳米技术
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产品关联
DOI
高影响因子
Frontiers in Environmental Science
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2023
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IF 4.6
Gan Xinhong,Song Yang,Liu Guoqiang,Zhang Huijuan,Yang Jianhua
We hydrothermally synthesized a flower-shaped ZnO/ZnIn2S4(ZnO/ZIS) Z-scheme heterojunction, which could decompose antibiotics efficiently. Meanwhile, the photocatalysts degradation of sulfamethoxazole (SMX) as the representative pollutant by ZnO/ZIS were studied deeply. When irradiated by a xenon lamp (500 W), ZnO/ZIS (0.20 g/L) degraded SMX (2.5 mg/L) in 6.5 h with an efficiency of 74.9%. The O2− and h+ played key roles in the visible light-assisted decomposition of SMX by ZnO/ZIS, while the role of OH was supplementary. Additionally, we investigated the mechanism of the generation of active species environmentally persistent free radicals (PFRs) within the SMX degradation using ZnO/ZIS by performing computations and experimental analyses based on density functional theory. Besides, PFRs (predominantly oxygen-centered) generated during the visible light-assisted SMX degradation by ZnO/ZIS had a concentration of 1011 spin/mm3. The generation of PFRs involves two major events, i.e., chemical adsorption and electron transfer. To adsorb the precursor F9a on ZnO, the energy required was −2.03 eV, and the electrons were transferred to the ZnO/ZnIn2S4 heterojunction from the precursor F9a. The PFRs only had minor negative impacts on the SMX degradation through ZnO/ZIS.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2023
·Vol. 30
·期 25
·67647-67661
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IF 5.8
Zhang Xiansheng,Liu Zhifeng,Shao Binbin,Wu Ting,Pan Yuan,Luo Songhao,He Miao,Ge Lin,Sun Jingwen,Cheng Chunyun,Huang Jian
Zirconium-based porphyrin metal organic frameworks (Zr-PMOFs) had attracted attention in the field of photocatalysis in recent years. However, the recombination of photogenerated carriers of monomer PMOF limits its performance of photocatalytic organic pollutants degradation. Metal sulfide has a suitable visible band gap, which can form a heterojunction with MOF materials to enhance the photocatalytic efficiency of MOF. Therefore, a typical metal sulfide semiconductor ZnIn 2 S 4 (ZIS) was introduced into a Zr-MOF (MOF-525) by solvothermal method to prepare a series of ZIS/MOF-525 (ZIS/MOF-525–1, ZIS/MOF-525–2, ZIS/MOF-525–3 and ZIS/MOF-525–4) composite photocatalysts in this work. The results of characterization analysis, optical analysis and electrochemical analysis showed that the interface of ZIS/MOF-525 formed a typical type-II heterojunction, which accelerated the electron transport rate and effectively inhibited the recombination of photogenerated e − and h + in MOF-525. The optimal removal efficiency of tetracycline (TC) by ZIS/MOF-525–3 (the mass of MOF-525 is 30 mg) reached 93.8% under 60 min visible light illumination, which was greater than that of pure MOF-525 (37.2%) and ZnIn 2 S 4 (70.0%), and it still maintained good stability after five cycles reusing experiment. This work provides feasible insight for the preparation of novel and efficient PMOF-based photocatalysts in the future.
研究领域:
材料科学
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环境科学
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化学
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光催化
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产品关联
DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2025
·Vol. 36
·期 18
·185401
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IF 2.8
Chen Zhang,Ruipeng Hou,Shufang Chang,Rong Wu,Shunhang Wei
Cocatalysts generally serve as active sites accelerating carrier separation. However, when the hydrophilicity of photocatalyst itself is poor, the trapped electrons or holes on cocatalysts are difficult to react with reactants quickly. In this work, Bi4Ti3O12 nanosheets with excellent hydrophilicity was prepared and then thermally deposited Rh on their surface (Bi4Ti3O12(Rh)), and finally in-suit grew ZnIn2S4 on the surface of Bi4Ti3O12(Rh). Based on the results of photocatalytic performance and materials characterization, it was found that the Bi4Ti3O12(Rh) in the photocatalytic system could be considered as a special cocatalyst rather than formed heterojunction with the ZnIn2S4. Under visible-light irradiation, the Rh acted as an electron trapping site to conduct photogenerated electrons trapping from ZnIn2S4 to the surface of Bi4Ti3O12. This process not only further accelerated carrier separation, but also facilitated electrons reacting with water due to the excellent hydrophilicity of Bi4Ti3O12(Rh), thereby achieving enhanced photocatalytic H2 production performance in the absence of sacrificial agents.
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
PubMed
高影响因子
ENERGY & FUELS
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2025
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IF 5.3
Shengqi Lin,Hailong Huang,Jieyi Fan,Chunhe Li,Kuankuan Ren,Weidong Dou
Photocatalytic conversion of biomass-derived compounds into value-added chemicals coupled with hydrogen production presents a promising strategy to address energy and environmental challenges. In this study, a series of NiB/ZnIn2S4 nanocomposites were synthesized via a facile two-step hydrothermal approach. The designed system enables the simultaneous utilization of photoexcited electrons and holes in redox reactions, achieving efficient benzyl alcohol oxidation and hydrogen evolution. The optimized 3%-NiB/ZnIn2S4 nanocomposite demonstrates exceptional photocatalytic performance, exhibiting a hydrogen evolution rate of 7223.2 μmol g–1 h–1 in 1.50 vol % benzyl alcohol solution, representing 2889.3-fold and 4.8-fold enhancements over pristine NiB and ZnIn2S4, respectively. Furthermore, the system maintains robust stability over 14 photocatalytic cycles, achieving 71.7% conversion efficiency and 86.8% selectivity toward benzaldehyde production. The enhanced performance originates from the formation of Z-scheme heterojunctions between NiB and ZnIn2S4, which facilitates efficient charge carrier separation and transport, as evidenced by improved photocurrent response and reduced electrochemical impedance. This work provides valuable insights into the photocatalytic valorization of biomass-derived platform chemicals under visible light irradiation.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2022
·
IF 7.392
Xingwang Yan,Xiaolin Zhang,Bin Wang,Ziran Chen,Junze Zhao,Gaopeng Liu,Dan Li,Qingdong Ruan,Liangliang Liu,Yue Xu,Mengxia Ji,Paul K. Chu,Huaming Li,Jiexiang Xia
Efficient heterojunction photocatalysts with spatial separation of photogenerated carriers are crucial to photocatalysis. Herein, the unique carbonized polymer dots/ZnIn 2 S 4 (CPDs/ZIS) Z-scheme heterojunction is designed to realize efficient spatial directional separation of photogenerated carriers. The CPDs broaden the light absorption range of ZIS and lengthen the lifetime of photogenerated charges. As the enrichment center of photogenerated electrons and active site of activated oxygen, CPDs generate more superoxide radicals to facilitate mineralization of organic pollutants by means of confined catalysis. The Z-scheme migration mechanism of photogenerated carriers in the CPDs/ZIS composite preserves the original valence band potential of ZIS and retains more holes for oxidation. Compared to the pristine ZIS, the CPDs/ZIS composite delivers enhanced photocatalytic performance in pollutant degradation. Electron spin resonance spectroscopy, free radical capture experiments, and liquid chromatography/mass spectrometry are performed to elucidate the photocatalytic mechanism of CPDs/ZIS.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）