CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Jundie Hu,Tingyu Yang,Junjie Chen,Xiaogang Yang,Jiafu Qu,Yahui Cai
Hydrogen peroxide (H 2 O 2 ) is a significant green oxidant for environment and new energy, especially for Fenton-like system. Onsite production and sustainable consumption of H 2 O 2 are the two critical challenges. Here, a fantastic 2D/1D hierarchical layered ZnIn 2 S 4 /TiO 2 heterojunction is reported as an efficient catalyst for in- situ H 2 O 2 production via 2-electrons oxygen reduction (ORR) process and be rapidly activated to high concentration hydroxyl radical (•OH) for water purification under visible light irradiation. The high-quality catalyst enables superior H 2 O 2 production rate of 1530.59 μmol h −1 g −1 with an external quantum efficiency of 10.39% illuminated at 400 nm, is much higher than that of reported photocatalysts. The bimetallic sulfide ZnIn 2 S 4 can effectively promote the activation of H 2 O 2 due to the unsaturation of sulfur atoms, so that the wastewater containing tetracycline (50 ppm) can be degraded by 90% only within 60 min by ZnIn 2 S 4 /TiO 2 via this cascade reaction. This work provides a novel strategy and ZnIn 2 S 4 -based catalyst for photocatalytic Fenton-like reaction.
研究领域:
环境科学
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材料科学
·
化学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Shikai Wang,Dong Zhang,Dafeng Zhang,Xipeng Pu,Junchang Liu,Hengshuai Li,Peiqing Cai
Reasonable design of high-performance catalysts with heterojunction to suppress the combination of electron-hole pairs has become an appealing challenge in photocatalytic field. Herein, a novel hydrangea-like ZnIn 2 S 4 /FePO 4 with S-scheme heterojunction was constructed via an ultrasound-annealing process for photocatalytic H 2 evolution. The composites showed remarkable photocatalytic H 2 production performance (3.337 mmol h −1 g −1 ), which was approximately 7.5 times higher than that of blank ZnIn 2 S 4 (0.446 mmol h −1 g −1 ). The improved photocatalytic H 2 evolution was mainly ascribed to the accelerated electron-hole separation through the construction of S-scheme heterojunction in interface. Moreover, the hydrangea-like structure provided abundant active sites and huge specific surface area, which was conducive to the exceptional photocatalytic activity. Simultaneously, both experimental and Density Functional Theoretical calculation results provided strong evidence for the transfer path of photogenerated carriers following the S-scheme heterojunction, and the unique mechanism of photocatalytic H 2 production was proposed. In addition, the hydrangea-like ZnIn 2 S 4 /FePO 4 heterojunction photocatalyst showed a commendable stability with no distinct decrease after three cycle tests, demonstrating its potential as a recoverable photocatalyst. This work offered insights into the design and preparation of highly efficient photocatalysts with S-scheme heterojunction.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Molecular Catalysis
·
2023
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IF 4.6
Qiaona Liu,Xin Han,An Qian,Xin Pu,Lei Ye,Pengpeng Liu,Fengqi Zhang,Jichang Liu
Developing noble-metal-free dual-metal single-atom catalysts with rich active accessible sites and excellent catalytic activity is very meaningful and challenging, especially for photocatalytic hydrogen production reaction, which can significantly reduce the cost of photocatalytic technology application while reducing the use of noble metals. Herein, a novel noble-metal-free dual CuNi single-atom modified ZnIn 2 S 4 (CuNi SA -ZIS) photocatalyst with high hydrogen production performance were successfully prepared by a hydrothermal method. The ZnIn 2 S 4 with a spherical nanoflower structure is composed of ultrathin nanosheets, and AC HDDAF-STEM results shows that CuNi bimetallic particles are uniformly distributed on the surface of ZnIn 2 S 4 nanosheets and exhibit atomic level dispersion, forming dual-metal single-atom structure. The optimized 1 wt% CuNi SA -ZIS photocatalyst with the Cu/Ni ratio of 1:1 shows the optimum H 2 evolution performance with a rate of up to 7844.7 μmol· g −1 · h −1 using triethanolamine as a sacrificial reagent, which is significantly improved compared to pristine ZIS, Cu-ZIS and Ni-ZIS samples under simulated sunlight. Electrochemical and spectroscopic characterization results demonstrated that the improved photocatalytic activity of CuNi SA -ZIS was mainly due to the addition of the dual CuNi single atoms with a synergistic effect served as a co-catalyst for ZnIn 2 S 4 photocatalysts, providing efficient active sites for hydrogen evolution while preventing the fast recombination of photo-generated electrons and holes. This study provides a valuable source of ideas for the design of effective noble-metal-free dual-metal single-atom catalysts.
研究领域:
材料科学
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催化化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
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IF 6.3
Yali Song,Cairong Yang,Xiaoyu Wen,Xiaojing Zhang,Yongpeng Ma,Mengke Shi,Hongzhong Zhang
Flower–shaped ZnIn 2 S 4 made by the traditional solvothermal method has a high rate of e – –h + recombination, limiting the photocatalytic reactions and its application. To address this issue, potassium sodium tartrate was added during solvothermal synthesis process to prepare ZnIn 2 S 4 photocatalysts with excellent photocatalytic performance. When the added dosage of potassium sodium tartrate was 0.4 g, the obtained ZnIn 2 S 4 photocatalysts (ZIS–0.4) showed a sheet–like structure and exposed more active (110) facet. Multiple characterization methods indicated that ZIS–0.4 exhibited the highest separation efficiency of photogenerated e – –h + pairs and electron migration. As a result, ZIS–0.4 showed the most superior photocatalytic efficiency in reducing Cr(VI). Following 20 minutes of exposure to visible light, ZIS–0.4 achieved a reduction rate of 99.3 % for Cr (VI), while the reduction efficiency of flower–shaped ZnIn 2 S 4 prepared without potassium sodium tartrate (ZIS–0) was only 28.5 %. The pseudo–first order kinetic reaction rate constant of ZIS–0.4 (0.244 min –1 ) was 15.25 times higher than ZIS–0 (0.016 min –1 ). Electron paramagnetic resonance and radical trapping experiments have verified that the main reactive substances were e – and ·O 2 – in Cr(VI) reduction process.
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
ANALYST
·
2025
·
IF 3.3
Yue Cao,Longfei Lai,Qingyuan Bao,Yiru Sheng,Peng Ye,Zhaogang Teng,Yang Zhou
In recent years, the overuse and improper disposal of antibiotics have led to their widespread presence in various environmental matrices and biological fluids. Exploring non-noble metal sulfides as electrocatalysts for reliable antibiotic detection holds substantial value but is limited by their inherent low electrochemical activity. Herein, CoS2 nanoparticles were first synthesized via a hydrothermal method, and used for the in situ assembly of ZnIn2S4 nanosheets. Then, plasma technology was employed for efficient and rapid generation of sulfur vacancies. Detailed studies illustrated the formation of heterojunctions, facilitating electron transfer from the thin, large-area ZnIn2S4 to CoS2, which acts as a co-catalyst due to its inherent conductivity and metallicity. The plasma-assisted generation of vacancies resulted in the formation of numerous exposed metal catalytic centers. Also, both the heterojunction and vacancy construction afforded a narrowed energy gap, an upregulated conduction band, and an enhanced carrier density, favoring electron injection during the electro-reduction process. Thus, an electrochemical platform was established using this material as an electrode substrate for furazolidone (Fz) detection, achieving a detection limit of 1.2 nM. The constructed platform was finally applied to evaluate Fz in actual samples of river water and urine, thanks to its good selectivity, high stability, and acceptable repeatability. In addition, in situ Fourier transform infrared technology was also used to monitor the electrocatalytic process. This work paves the way for preparing low-cost non-precious metal sulfides, which can be used as promising candidates for electrocatalysts in antibiotic testing.
研究领域:
环境科学
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材料科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
Progress in Natural Science-Materials International
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2025
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IF 7.1
Jiangfeng Xu,Run Zhou,Yangzi Li,Yu Tu
A sustainable pathway to green hydrogen generation, the design and synthesis of targeted photocatalysts based on semiconductors or other organic/inorganic materials has emerged as a promising approach for efficient hydrogen production under light irradiation. In this paper, wollastonite-ZnIn 2 S 4 composite photocatalysts (ZIS-W) were successfully prepared by the chemical deposition method with wollastonite as the carrier. The hydrogen evolution reaction from water under simulated sunlight irradiation and the enhancement mechanism of ZIS-W were investigated. The results showed that ZIS-W exhibits favorable photocatalytic hydrogen evolution performance and stability, and the photocatalytic hydrogen evolution efficiency of ZIS-W was 4.94 mmol h −1 g −1 , which was 1.44 times higher than that of pure ZnIn 2 S 4 . The unique crystal structure of wollastonite provides favorable conditions for the growth of ZnIn 2 S 4 and effectively enhances the dispersion and stability of ZnIn 2 S 4 . The recombination of photogenerated electron-hole pairs was effectively suppressed while the specific surface area was increased. This study provided a facile synthesis method for preparing photocatalysts with highly efficient hydrogen generation.
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 ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Qiang Gao,Junxi Li,Bin Liu,Chenguang Liu
The rationally designed semiconductor photocatalytic materials have attracted significant attention because of their huge advantages in the use of solar light. Herein, a series of direct Z-scheme heterojunction nanocomposites were synthesized via in situ growth of zinc indium sulfide nanosheets on ceria nanosheets (ZnIn 2 S 4 @CeO 2 ) and employed for effective photodegradation and Cr(VI) reduction. Advanced characterizations such as XPS , EPR spectra, and DFT calculations verified that the formation of direct Z-scheme charges transfer mechanism promoted rapid charge separation and retained strong redox capacity. As a result, the optimized ZnIn 2 S 4 @CeO 2 sample showed significantly promoted photocatalytic removal rates for tetracycline (TC) and Cr(VI) at a 3.7 and 4.5 times enhancement by comparison with the pristine ZnIn 2 S 4 , respectively. Additionally, after four consecutive cyclic tests, the as-synthesized nanocomposite exhibited remarkable photocatalytic activity and stability. The present work provides an integrated engineering strategy for Z-scheme photocatalyst systems with high photocatalytic efficiency and extensive applications.
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
Chemistry-An Asian Journal
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2023
·Vol. 18
·期 9
·e202300161
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IF 4.1
Li Wen,Peng Liu,Zhaoyi Zhou,Ke Wang,Yi Zhou
Graphical Mn-doping optimizes the energy band structure of ZnIn 2 S 4 , enhancing the photocatalytic oxidation of antibiotics such as levofloxacin, norfloxacin, and tetracycline. ZIS-4% achieved 2.5 times higher degradation rates of levofloxacin than pristine ZIS, reaching almost 100% in 30 min. This study presents a new approach to Mn-doped photocatalyst design for antibiotic pollution control. Overuse of antibiotics has led to ecological hazards such as the emergence of resistance genes and super bacteria, necessitating the development of water pollution control technology. Indium zinc sulfide (ZnIn 2 S 4 , ZIS) is a promising material for environmental applications due to its narrow band gap and excellent light absorption ability. This study investigates Mn-doped ZIS photocatalysts to enhance their photocatalytic oxidation efficiency. Structural morphology, electrochemical testing, and active species testing confirm that Mn-doping optimizes the energy band structure of ZIS and increases the concentration of active free radicals, improving the efficiency of charge separation. Mn-doping also causes lattice distortion, leading to trapping centers to enhance charge separation efficiency. The optimal ZIS-4% oxidation degradation rate of levofloxacin was 2.5 times higher than that of pristine ZIS, with degradation rates reaching almost 100% in 30 minutes. This study provides a novel approach to designing Mn-doped photocatalysts for antibiotic pollution control.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Xiaoyan Ding,Yanjun Xue,Jingjing Wang,Jian Tian
Heterojunction engineering is an effective strategy to improve photocatalytic performance. Two-dimensional (2D)/2D semimetal 1T′ phase molybdenum sulfide/zinc indium sulfide (1T′-MoS 2 /ZnIn 2 S 4 ) S-scheme heterojunctions with tight and stable interfaces were synthesized by a simple hydrothermal synthesis method. Under the optimal 1T′-MoS 2 loading ratio (5 wt%), the hydrogen production rate of 1T′-MoS 2 /ZnIn 2 S 4 composites reaches 11.42 mmol h −1 g −1 , which is 3.1 and 1.4 times higher than that of pure ZnIn 2 S 4 (2.9 mmol h −1 g −1 ) and ZnIn 2 S 4 /Pt (8.01 mmol h −1 g −1 ), and the apparent quantum efficiency (AQE) reaches 53.17 % (λ = 370 nm). Semimetal 1T′ phase MoS 2 on ZnIn 2 S 4 broadens the light absorption range, enhances the light absorption ability, promotes electron transfer, and offers abundant active sites. The establishment of S-scheme heterojunctions achieves the spatial separation of photogenerated charges and increases the reduction potential. This work provides insights for the design of novel photocatalysts.
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
Journal of Materials Chemistry C
·
2013
·Vol. 1
·期 10
·2014-2020
·
IF 0
Wei-Dong Xiang,Hai-Long Yang,Xiao-Juan Liang,Jia-Song Zhong,Jing Wang,Le Luo,Cui-Ping Xie
We report the direct synthesis of highly luminescent Cu–Zn–In–S (CZIS) quaternary nanocrystals (NCs) in the non-coordinating solvent 1-octadecene (ODE) using chloride salts of Cu, In, and Zn as metal precursors in the presence of oleic acid and dodecanethiol. The resulting CZIS NCs had a narrow size distribution with an average diameter of 2.5 nm. The photoluminescence spectra can be tuned from 400 nm–850 nm by varying the Cu : Zn precursor ratio, and a relatively high photoluminescence quantum yield (PL QY) of 46% was obtained without any post-processing. The PL decay times of the as-prepared CZIS NCs were tunable via controlling the Cu : Zn precursor ratio and reaction time. The photoluminescence mechanism of the CZIS nanocrystals was discussed using the PL decay curves. EDS analysis revealed that the resulting CZIS NCs were Cu-deficient, and the internal defect-related emission process could be strongly promoted by the large Cu deficiency which is associated with the improvement of PL QY.
研究领域:
材料科学
·
光学
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DOI
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2019
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IF 14.229
Chun Du,Qian Zhang,Zhaoyong Lin,Bo Yan,Congxin Xia,Guowei Yang
Two-dimensional (2D) photocatalytic materials have attracted extensive attention due to the unique properties different from those of their bulk. 2D ZnIn 2 S 4 nanosheets with the intrinsic bilayer in one-unit-cell with interlayer force generally perform better than that of the bulk in photocatalytic hydrogen evolution . Here, we for the first time demonstrate that the half-unit-cell ZnIn 2 S 4 monolayer possesses an excellent photocatalytic performance compared with the one-unit-cell bilayer owing to its increased carrier lifetime. Meanwhile, sulfur vacancies are introduced in the half-unit-cell ZnIn 2 S 4 monolayer to trap the photo-generated electrons and further prolong the carrier lifetime. First-principle calculations reveal that sulfur vacancies in the ZnIn 2 S 4 monolayer induce more charge carriers at the valence band maximum to participate in the photocatalytic activity. As expected, the photocatalytic hydrogen production rate of the monolayer ZnIn 2 S 4 with sulfur vacancies is up to 13.478 mmol/g/h under the visible light irradiation, which is much higher than the available values reported of ZnIn 2 S 4 so far. These findings provide a new strategy for optimization of 2D photocatalysts to enhance photocatalytic hydrogen evolution.
研究领域:
材料科学
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能源科学
·
光催化
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2023
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IF 6.7
Shuming Li,Hongbang Rui,Tengfei Bao,Yuanyuan Qi,Heng Rao,Ping She,Jun-sheng Qin
Photocatalytic carbon dioxide (CO 2 ) reduction into syngas (the mixture of CO and H 2 ) has been considered as an attractive method to solve the greenhouse effect and energy shortage. Polychalcogenides semiconductors such as ZnIn 2 S 4 (ZIS) have been widely utilized in photocatalysis but are still hampered by limited photo-induced charge separation and poor product selectivity. Molecular catalysts for CO 2 reduction possess superior selectivity for specific reduction products but suffer from low stability and recycling difficulty. Herein, we modified a molecular phthalocyanine (Pc) on flower-like ZIS nanosheets. This hybrid exhibited enhanced photocatalytic CO 2 reduction and exhibited a tunable ratio of CO/H 2 in syngas (0.01–4.65) under visible light irradiation. The enhanced photocatalytic activity of ZIS-Pc hybrids can be attributed to dimension-matched ultrathin heterojunction, which facilitated charge separation, broad light utilization, and recycling stability. The unique design holds great potential for other highly efficient photocatalytic reactions.
研究领域:
化学
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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）