APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Mei Cai,Bin Du,Anze Shui,Chao He
The photodegradation of pollutants is a significant and friendly technology to protect the environment. The fabrication of hierarchical heterojunction is the efficient method to improve the photocatalytic performance. Herein, the hierarchical type-II BiOBr@ZnIn 2 S 4 heterojunction is fabricated successfully via a simple chemistry method. The optimal sample BS170 (the volume of 170 mL ethylene glycol) exhibits the higher photodegradation under the visible light and presents 2.3 times higher than that of pure BiOBr for degradation of MO and the mass of BS170 is the half of BiOBr could achieve the same photocatalytic effect as BiOBr for the photodegradation of RhB. The results indicate the fabric of heterojunction could enhance the absorption capacity of visible light and separation efficiency of photoinduced electron-hole pairs to increase the photodegradation. Therefore, this work provides the novel strategy for fabricating the hierarchical type-II heterojunction photocatalyst for the degradation of dyes.
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
高影响因子
ACS Catalysis
·
2025
·
IF 13.1
Fan Gao,Wen-Gang Cui,Xinqiang Wang,Zhenglong Li,Yongchang Chen,Zichao Shen,Ke Wang,Yong Gao,Jian Miao,Yaxiong Yang,Jian Chen,Shaohua Shen,Hongge Pan
Hydrogen spillover has been believed to play an essential role in the reaction path in photocatalysis, yet its rational regulation remains a considerable challenge for the design of highly efficient photocatalysts. Herein, hydrogen spillover can be well regulated at ZnIn2S4 with surface decorated by cubic α-MoC1–x quantum dots (QDs) with different lattice strain (ZIS/QDs). With the increasing lattice strain of α-MoC1–x, the composite shows first increased and then decreased photocatalytic hydrogen evolution (PHE). Spectroscopic characterizations and calculation analysis indicate that PHE performance of ZIS/QDs is highly corelated with hydrogen spillover rather than charge transfer process. Further systematic investigations suggest that compressive lattice strain uplifts the Fermi level of α-MoC1–x and optimizes the interfacial spillover barrier between α-MoC1–x and ZnIn2S4, achieving well-manipulated hydrogen spillover and enhanced PHE performance. This work demonstrates a general design from the perspective of lattice strain to harness hydrogen spillover effect in heterogeneous interface for hydrogen generation.
研究领域:
材料科学
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催化化学
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产品关联
DOI
高影响因子
ACS Catalysis
·
2024
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IF 11.3
Xiaohui Leng,Xin Zhou,Lu Ma,Yonghua Du,Ouwen Peng,Zhongxin Chen,Jinhui Pan,Ming-Yu Qi,Jian-Hui Zheng,Yi-Jun Xu,Kian Ping Loh
Visible light induced oxidative C–C and C–N coupling provides a milder alternative to the current synthetic strategies. However, the photochemical C–C coupling of benzylamine and chromoselective C–C/C–N conversion are not widely reported. Herein, we demonstrate that the introduction of indium vacancies in ZnIn2S4 improves the catalytic activity for C–C coupling of benzylamine and imparts a strong chromoselectivity for C–C or C–N coupled products. A high C–C selectivity of ∼80% is achieved with a benzylamine conversion of ∼80%. Mechanistic studies unveil the switchable reaction routes between kinetically favored C–C coupling and thermodynamically favored C–N coupling under specific illumination conditions.
研究领域:
化学
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材料科学
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光催化
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
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IF 8.355
Tingting Liu,Lei Wang,Xiu Liu,Chenxu Sun,Yongtao Lv,Rui Miao,Xudong Wang
The dynamic photocatalytic membrane coated with ZnIn 2 S 4 was fabricated to solve the problems of suspended photocatalyst separation and membrane fouling that occur in applying photocatalytic technology and membrane separation technology, respectively. The structural characteristics, photocatalytic performance, and antifouling property of dynamic photocatalytic membranes with different loadings of ZnIn 2 S 4 were systematically investigated. As the loading of photocatalysts increases, a uniform and dense photocatalytic layer formed on the membrane surface, and the surface morphology changed from a protruding structure to an undulating mountain-like structure. The roughness and absorption performance for UV–Vis of dynamic photocatalytic membranes increased because of the formation of a photocatalytic layer while the chemical property and water flux did not change. The removal efficiencies of fluvastatin and total organic carbon by dynamic photocatalytic membranes were significantly increased compared with that of the pristine polyvinylidene fluoride (PVDF) membrane, indicating that the dynamic photocatalytic membranes possessed excellent photocatalytic performance and high stability. Meanwhile, the dynamic photocatalytic membranes exhibited a greater antifouling property than the pristine PVDF membrane because of the formation of the photocatalytic layer on the membrane surface. Therefore, the fabrication of dynamic photocatalytic membrane is an effective method to promote the advantageous combination of photocatalytic technology and membrane separation technology.
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
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 15
·4562-4568
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IF 7
Chu-Xuan Liu,Rui Shi,Wangjing Ma,Fulai Liu,Yong Chen
The recycling of plastic waste has attracted increasing attention because of its negative effects on the ecological environment and human health. Photoreforming is emerging as a green and promising approach for upcycling plastic waste into highly valuable chemicals and H2 fuels. Herein, an earth-abundant Ni2P/ZnIn2S4 catalyst prepared by mechanical grinding is reported to selectively photoreform various polyester plastics into high-added-value chemicals coupled with H2 evolution under mild conditions. In particular, polylactic acid (PLA) can be upcycled to pyruvic acid (PA) with high activity (745.9 μmol g−1 h−1) and selectivity (>90%). Moreover, the H2 evolution rate can reach up to 781.3 μmol g−1 h−1 catalyzed by 7.5 wt% Ni2P/ZnIn2S4. This system exhibits excellent photocatalytic performance, benefiting from efficient photogenerated charge carrier separation and transfer between Ni2P and ZnIn2S4. This study provides a viable and promising solution for simultaneously producing high-purity H2 and added-value chemicals from polyester plastic waste, demonstrating its potential for practical recycling applications.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF CATALYSIS
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2025
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IF 6.5
Jifang Zhang,Chengcheng Suo,Xinchi Hao,Xingyu Zhu,Yiheng Zhuang,Cunyuan Hu,Wei Li,Sha Luo,Bing Tian,Chunhui Ma,Shouxin Liu
The selective cleavage of lignin specific linkages for production of high-value chemicals remains a significant challenge due to inherent inertness and complex structure. In this study, we developed a Photo-Electro-Catalysis (PEC) strategy utilizing radicals, which achieved high catalytic efficiency for lignin depolymerization at room temperature (from 10 °C to 35 °C). A heterojunction material composed of 2D ZnIn 2 S 4 nanosheets and carbon nanoparticles was synthesized to facilitate efficient electron transfer and radical generation. The quantum yield (2.1858) exceeding 1 suggested a radical chain mechanism in the PEC process. Mechanistic studies revealed that oxygen radical combine with C-centered radicals to form a C β -OOH peroxide intermediate, leading to C C bond cleavage. Notably, chlorine radicals (•Cl) were introduced for the first time in lignin PEC depolymerization, initiating C β -H functionalization, cyclization and ring-opening reactions. This approach achieved 100 % C α -C β cleavage and over 90 % mass conversion of native G-units lignin. The highest product yields were 233.34 mg g −1 (benzaldehyde), 66.03 mg g −1 (acetophenone), and 54.98 mg g −1 (phenol) from the β-O-4 dimer. This study provides novel insights into radical mechanisms and catalytic strategies for lignin depolymerization into high-value chemicals.
研究领域:
化学工程
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环境科学
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材料科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
·
IF 16.744
Xuejiao Feng,Huishan Shang,Jinling Zhou,Xuke Ma,Xiangyang Gao,Dan Wang,Bing Zhang,Yafei Zhao
Rational constructing hierarchical core–shell structured photocatalysts to accelerate the separation and transfer of light-induced electrons is extraordinarily indispensable to boost the performance of photocatalytic hydrogen evolution. Herein, we integrate two-dimensional (2D) ZnIn 2 S 4 (ZIS) nanosheets and flower-like CoS 1.097 assembled with one-dimensional (1D) nanothorns to construct hierarchical 1D/2D CoS 1.097 @ZIS with ZIS nanosheets and CoS 1.097 nanothorns as shell and core respectively as an effective visible light photocatalyst to produce hydrogen from water splitting. The optimized 8.5-CoS 1.097 @ZIS photocatalyst demonstrates an outstanding activity with hydrogen production rate of 2632.33 µmol g −1 h −1 (6.42 times of ZIS alone) and good stability for photocatalytic water splitting. The enhanced performance can be ascribed to the distinctive structure and composition of CoS 1.097 @ZIS, which affords intimate contact interface, strong light absorption and abundant reaction sites, thus facilitating the separation and transfer of the charge carriers as well as inhibiting charge recombination. This work offers a prospective approach to construct 1D/2D core–shell ZIS-based photocatalysts for hydrogen production from water splitting.
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
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Yunpeng Gong,Xiaoyan Xiong,Lijiu Cao,Yue Hu,Qiao Qin,Jiamin Gan,Yufang Chen,Tao Jin
Introducing defects is an effective strategy to improve the sensitivity of sulfide semiconductor sensors. In this study, ZnO obtained by calcining ZIF-8 was used as the core, and ZnIn 2 S 4 flakes were grown in situ on the outer surface of ZnO to construct a flower-cluster ZnO@ZnIn 2 S 4 composite material with an internal rich S-vacancy. The prepared ZnO@ZnIn 2 S 4 has a well-contacted ІІ-type heterojunction . Compared with ZnIn 2 S 4 , the response value of ZnO@ZnIn 2 S 4 to triethylamine gas was increased by 4.9 times, and the response recovery time was shortened from 932 s to 100 s. At a working temperature of 180°C, ZnO@ZnIn 2 S 4 exhibits a response to triethylamine that is 47.2 times higher than the response to other gases, demonstrating its specific selective response to triethylamine molecules. ZnO@ZnIn 2 S 4 can maintain a stable response to triethylamine molecules for a long time in a complex humidity environment. The selective mechanism of material selection was analyzed from the perspectives of molecular attack, molecular polarity differences, and spatial size matching. They are using calcined MOF materials as the core has excellent potential for improving the gas-sensitive response performance of materials. The explanation of the specific selectivity mechanism is positively inspiring for the construction and performance optimization of high-performance triethylamine response materials.
研究领域:
材料科学
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化学传感器
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纳米材料
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产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2023
·Vol. 106
·期 8
·4785-4793
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IF 3.9
Dafeng Zhang,Ruiqi Zhang,Junchang Liu,Xipeng Pu,Peiqing Cai
Photocatalytic H 2 evolution technique has been proved to be one of the promising approaches to overcome the present energy and environmental issues caused by the combustion of fossil fuel. Constructing heterojunction can realize the efficient separation and migration of charges and thus achieve enhanced H 2 evolution performance. Herein, we designed and prepared a ZnIn 2 S 4 /BiFeO 3 heterojunction photocatalyst with a 3D/2D structure via an ultrasonic self-assembly process. The typical 3D/2D structure with intimate interface was obtained, which not only provided more active sites but also boosted the migration of photogenerated charges. The optimal mass ratio of BiFeO 3 in ZnIn 2 S 4 /BiFeO 3 was determined to be 10%, and a 10.5-fold increase in H 2 evolution rate in comparison with of pure ZnIn 2 S 4 was achieved. Furthermore, the ZnIn 2 S 4 /BiFeO 3 composite exhibited excellent recyclability and structural stability based on cycling experiment. A S-scheme heterojunction mechanism was revealed according to the experimental results of photocatalytic H 2 evolution and electrochemical tests.
研究领域:
材料科学
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能源与环境科学
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DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2024
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IF 3.2
Ziqiang Zhang,Zhengfeng Shen,Chuanyu Zhu,Yunfang Wang,Yawen Wang,Caimei Fan,Rui Li,Jianxin Liu
Producing hydrogen from organic/inorganic hydrides is an innovative clean energy alternative to fossil fuels , addressing the increasing energy demands. Here, we first propose coupled photocatalytic water hydrogen production and N,N-dimethylformamide (DMF, C 3 H 7 NO) dehydrogenation technology to obtain high value-added H 2 and N,N-dimethylcarbamic acid (C 3 H 7 NO 2 ). ZnIn 2 S 4 @MIL-125(Ti) nanoheterostructures were synthesized using a simple solvothermal method and resulting in a photocatalytic H 2 production rate of 2.135 mmol h −1 g −1 (apparent quantum efficiency at 380 nm was 2.6 %) which is 2.77 times higher than pure ZnIn 2 S 4 . Liquid-phase mass spectrometry indicates that the DMF oxidation activity of ZIS@MIL heterojunction is double pure ZnIn 2 S 4 and only microcrystalline CO 2 is produced. Isotopes indicate that the production pathway of H 2 results from the coupling of the –CHO bond in DMF and the –H in water. The improved photocatalytic activity of the ZnIn 2 S 4 @MIL-125(Ti) heterostructure is attributed to facilitating efficient charge carrier transfer and separation and DMF depletion of holes accelerates electron transfer .
研究领域:
材料科学
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能源科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2022
·
IF 3.407
Zuchun Wang,Jian Zhang,Xiaodi Ji,Hao Wu,Xiaojin Xu,Jianming Zhan,Hongqi Shi,Wenjuan Liu,Tao Tang
ZnIn 2 S 4 as an energy band narrow photocatalyst has attracted extensive attentions in water remediation, but the fast carrier recombination efficiency hinders its further utilization. An effective strategy is to boost photocarrier separation and enhance photocatalysis performance by building heterojunction. Here, a simple in-situ deposition method is used to create a unique CdSe/ZnIn 2 S 4 heterojunction structure. By varying the CdSe content, CdSe/ZnIn 2 S 4 composites can be synthesized with diffident photocatalytic properties. The optimal photocatalytic efficiency of CdSe/ZnIn 2 S 4 composite is obtained when 1.0 % CdSe addition, while an overdose of CdSe QDs results in a deterioration of photocatalytic efficiency. 93 % tetracycline (TC) degradation could be attained. And the degradation rate is 1.9 and 2.3 times higher than pure ZnIn 2 S 4 and CdSe. In addition, the CdSe/ZnIn 2 S 4 photocatalytic mechanism complies with the Z-Scheme. In the photodegradation process, the superoxide radicals (·O 2 – ) and holes (h + ) are the primary active agents.
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
高影响因子
CRYSTENGCOMM
·
2023
·Vol. 25
·期 45
·6310-6316
·
IF 3.1
Lu Chen,Deling Wang,Renkun Huang,Ruowen Liang,Linzhu Zhang,Shaoming Ying,Guiyang Yan
The development of low-cost and high-efficiency non-noble metal cocatalysts is one of the important factors in promoting the separation of photogenerated carriers. In this study, we report a stable and highly active MoC@NC/ZnIn2S4 heterostructure for photocatalytic H2 evolution under visible light. The optimized MoC@NC/ZnIn2S4 composite displays an excellent photocatalytic H2 evolution rate of 45.4 μmol h−1, which was 8.3 times higher than that of ZnIn2S4. Its apparent quantum efficiency reached 51.5% at 420 nm. Moreover, the photocatalyst exhibits excellent stability and recycling capabilities. This remarkable activity can be ascribed to the modification of MoC@NC onto the ZnIn2S4 surface by forming an intimate contact interface, which can suppress the recombination of photogenerated carriers, consequently leading to superior photocatalytic H2 evolution performance. This study indicated that MoC@NC can act as an outstanding cocatalyst for promoting ZnIn2S4 photocatalytic performance.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
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