ADVANCED FUNCTIONAL MATERIALS
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2024
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IF 18.5
Ran Wang,Li Shi,Elena Yu. Konysheva,Xiaoxiang Xu
Photocatalytic conversion of benzyl alcohol (BA) is a promising means to coproduce H 2 with value-added chemicals. However, there is a lack of an efficient strategy to regulate the selectivity of the BA conversion products. Here, by a simple cocatalyst engineering technique, the selective conversion of BA over Zn 2 In 2 S 5 nanosheets (ZIS) is maneuvered. Two types of cocatalysts, i.e., Pt and Cd, are photo-deposited onto ZIS that can shift the selectivity to diverse products, namely, Pt to benzaldehyde (BAD) and Cd to the carbon-carbon (C─C) coupling compounds. Mechanistic studies indicate that Cd has a high reducing capacity to convert BAD back to the ketyl radical (C ? radical), favoring the construction of the C─C bonds. Pt, however, facilitates the generation of C ? radicals but is energetically unfavorable for their coupling reactions, resulting in the generation of BAD as the main product. Theoretical calculation reveals that the distinct catalytic behaviors of Pt and Cd stem from their different electronic structures that govern the adsorption strength to the reaction intermediates and the reaction energy barriers of the C─C coupling step. This work not only addresses the challenge of selectivity regulation for BA conversion but also brings fresh mechanistic insights into the role of the cocatalysts.
研究领域:
化学工程
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材料科学
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催化反应
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2023
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IF 7.2
Shuang Li,Yubao Li,Wenqing Yin,Kang Su,Ping He,Jiufu Chen,Yujun Si,Yao Xiao,Tongyan Ren
To enhance the activity of photocatalysts , it is crucial to use non-noble metal as a cocatalyst instead of noble metal in the arena of photocatalysis . In this study, to boost the photocatalytic hydrogen activity of pristine Zn 2 In 2 S 5 , XNi 2 P/ZIS 5 composite photocatalysts were prepared using noble-metal-free Ni 2 P as cocatalyst. Before photocatalytic hydrogen production experiments, the physicochemical properties of the synthesized materials were systematically characterized by advanced characterization methods. The experiment results demonstrate that the load of Ni 2 P cocatalyst can noticeably enhances the photocatalytic performance of Zn 2 In 2 S 5 and the photocatalytic hydrogen generation activities are observably influenced by the mass ratio of Ni 2 P to Zn 2 In 2 S 5 . Among XNi 2 P/ZIS 5 , the 10Ni 2 P/ZIS 5 sample presents the optimal hydrogen production rate of 17.74 mmol g −1 h −1 , which is 7.58 times as high as that of pristine Zn 2 In 2 S 5 . The increased photocatalytic hydrogen evolution activity could be attributed to the introduction of noble-metal-free cocatalyst Ni 2 P, which serves as an electronic collector and reduction sites remarkably facilitates the separation and migration of photoexcited electrons of Zn 2 In 2 S 5 . Meanwhile, the rate of reactions is significantly accelerated.
研究领域:
材料科学
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光催化
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 44
·2405922
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IF 18.5
Minmin Ma,Ran Wang,Li Shi,Ronghua Li,Jie Huang,Zhuo Li,Peng Li,Elena Yu. Konysheva,Yanbo Li,Gang Liu,Xiaoxiang Xu
Photocatalytic carbon-carbon (C─C) coupling of benzyl alcohol is a promising means to coproduce the value-added chemicals with H 2 but is generally subject to low efficiency in terms of photon utilization. Here, efficient benzyl alcohol C─C coupling is achieved over Zn 2 In 2 S 5 containing a tunable content of Zn vacancies ( V Zn ). The V Zn tends to form shallow defect states below the conduction band that can expedite photocarrier separation by collecting the photo-generated electrons. The V Zn -collected electrons are essential for a high selectivity of the C─C coupling reactions because they enable a fast elimination of the byproduct benzaldehyde by catalyzing its reduction back to the ketyl radicals. Under simulated sunlight, the V Zn -containing Zn 2 In 2 S 5 accomplishes ≈100% conversion of benzyl alcohol for merely 1 h and attains ≈100% selectivity for the C─C coupling compounds for 2 h, delivering an apparent quantum yield as high as 7.7% at 420 ± 20 nm. The benefits of V Zn have also been verified by the theoretical calculations that indicate reduced energy barriers for various surface reactions in the presence of V Zn . This work brings fresh mechanistic insights into the role of V Zn and can serve as a useful guideline in the design of efficient photocatalysts.
研究领域:
材料科学
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光催化化学
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表面化学
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Ting Zhang,Ruipeng Hou,Rong Wu,Chen Zhang,Yindi Yu,Wenlong Yang,Shunhang Wei
Limited by rapid carrier recombination, the photocatalytic hydrogen peroxide (H 2 O 2 ) generation performance of Zn 2 In 2 S 5 is far from practical application. Herein, Zn 2 In 2 S 5 /In 2 S 3 S-scheme heterostructures were constructed by employing a one-step hydrothermal strategy that precisely adjusted the Zn:In precursor ratio. Thanks to the band structures with sufficiently redox ability of In 2 S 3 and Zn 2 In 2 S 5 , as well as enhanced carrier separation and transfer efficiency, the optimal Zn 2 In 2 S 5 /In 2 S 3 heterostructures (ZIS/In 2 S 3 -1:4) achieved a sacrificial-agent-free H 2 O 2 production rate of 339.5 μM h −1 under AM 1.5 irradiation, which approximately 1.7 times higher than that of pristine Zn 2 In 2 S 5 . Meanwhile, it also exhibited good H 2 O 2 evolution rate under visible-light irradiation and reusability. Its apparent quantum yield (AQY) at 380 nm, 420 nm, and 450 nm reached to 1.32 %, 1.11 %, and 0.63 %, respectively. In addition, the introduction of In 2 S 3 inhibited H 2 O 2 decomposition and enhanced the selectivity of H 2 O 2 production. In the photocatalytic process, superoxide radicals and holes were the key reactive substances, thereby H 2 O 2 was generated via a two-step single-electron O 2 reduction reaction process and one-step two-electron water oxidation reaction process. The construction strategy of the Zn 2 In 2 S 5 /In 2 S 3 S-scheme heterostructures is expected to provide a new perspective for the design of photocatalysts for efficient H 2 O 2 synthesis.
研究领域:
材料科学
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光催化
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能源化学
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纳米材料
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环境功能材料
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高影响因子
Journal of Environmental Chemical Engineering
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2023
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IF 7.7
Yuzhen Li,Zhaoxin Sun,Sufang Wang,Runbin Duan,Shaojie Wang,Shuo Li,Borong Lan,Lizhen Gao
Herein, the ternary CdS/Zn 2 In 2 S 5 /g-C 3 N 4 (CdS/ZIS/CN) heterojunction photocatalyst was successfully prepared via a one-pot method for photodegradation of tetracycline (TC) under visible light irradiation. The surface morphology, structure and optical properties of the prepared photocatalytic material were analyzed by XRD , SEM , TEM, UV–vis DRS, FT-IR and PL . Moreover, the experimental results exhibited that the ternary CdS/ZIS/CN photocatalyst revealed excellent photocatalytic activity compared with g-C 3 N 4 . In this work, 94.73% of TC (20 mg/L, pH=11) was degraded by 0.5 g/L 30CdS/ZIS/CN within 60 min of visible light irradiation. Additionally, the degradation rate of the photocatalyst decreased by about 9.41% after the fourth cycle, indicating its high stability and reusability. Subsequently, a possible double type-II mechanism of photodegradation was eventually provided based on active radical capture experiments. The current investigation provided a promising strategy to construct the high-efficiency heterojunction photocatalyst to degrade antibiotic contaminants.
研究领域:
环境科学
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材料科学
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Ya-Ya Yang,Hao-Peng Feng,Xue-Gang Zhang,Hai Guo,Xiao-Ju Wen,Long Sui,Zheng-Tao Dong,Ming Yan,Cheng-Gang Niu
Water pollution caused by organic pollutants and water-borne pathogens has posed a serious threat to human health. Herein, a fully encapsulated core–shell MoO 3-x @Zn 2 In 2 S 5 S-scheme heterojunction was constructed for efficient removal of ciprofloxacin (CIP) and disinfection of antibiotic-resistant bacteria (TC- E. coli ). The excellent catalytic performance is attributed to the synergistic advantages of optimized oxygen defect concentration, the protection of oxygen vacancy and enhanced photogenerated carrier separation efficiency. The MO@ZIS-15 with optimum defect density can remove 92.6 % of CIP in 120 min and inactivate 7.7 log TC- E. coli in 75 min. Furthermore, the developed MO@ZIS-15 system has excellent anti-anion and organic matter interference ability, and also exhibit good utilization potentiality in practical water. Combining theoretical calculations and liquid chromatography-mass spectrometry (LC-MS), the structure–function correlation between different CIP active sites and degradation pathway are revealed. Toxicity prediction and cytotoxicity experiments demonstrated that photocatalytic treatment can effectively reduce the ecotoxicity of degradation products. This work provideds a novel vision to design high-efficiency plasma-based photocatalysts for the removal of organic contaminants and disinfection of antibiotic-resistant bacteria.
研究领域:
环境科学
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材料科学
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生物医学工程
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
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IF 21.1
Ran Wang,Li Shi,Jingjing Su,Jialin Li,Xiaoxiang Xu
Photocatalytic benzyl alcohol (BA) conversion is a representative for green and sustainable alcohol valorization and concurrent hydrogen production. However, there lacks of an efficient control over product selectivity, particularly the valuable C-C coupling compound hydrobenzoin. Here, selective hydrobenzoin photosynthesis has been realized by fabricating AgIn 5 S 8 @Zn 2 In 2 S 5 heterostructures (denoted hereafter as AIS@ZIS) for BA conversions. AIS@ZIS are essential type-II semiconductor heterojunctions and is characterized by seamless heterointerfaces that contribute to efficient separation of photocarriers (photo-generated e - and h + ). Such desired properties not only provide ample photocarriers for BA conversion but also switch the reaction sites from Zn 2 In 2 S 5 to AgIn 5 S 8 . The latter is critical for the high selectivity of hydrobenzoin as AgIn 5 S 8 favors hydrobenzoin formation whilst is less favorable for hydrobenzoin oxidation, as revealed by both experimental and theoretical studies. Notably, AIS@ZIS can deliver selectivity higher than 80 %, conversion efficiency higher than 90 % and an apparent quantum yield of 4.89 % at 420 ± 20 nm for hydrobenzoin photosynthesis. These findings not only bring new mechanistic insights for selective hydrobenzoin photosynthesis but also serve as a rational guideline for the design of highly active photocatalysts for efficient organic transformation.
研究领域:
光化学
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催化化学
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材料科学
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有机转化
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
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IF 4.4
Qirui Guo,Juncheng Li,Yuesong Ji,Jiafeng Fan,Fankai Bu,Junying Liu
Surfactant-assisted synthesis regulates Zn 2+ vacancies in Zn 2 In 2 S 5 for selective HMF oxidation. • Unsaturated Zn sites enhance charge separation and O 2 activation in photocatalytic biomass conversion. MIL-derived ZnIn 2 S 4 nanosheet network synthesized via MOF templating. Photocatalytic conversion of biomass into value-added chemicals constitutes a promising green and sustainable approach for carbon-neutral resource utilization. Defect engineering has been widely recognized as an effective strategy to modulate the electronic structure and surface redox properties of semiconductor photocatalysts, thereby boosting their catalytic performance. Herein, we report a one-pot hydrothermal synthesis protocol that enables the generation of Zn vacancies on the surface of Zn 2 In 2 S 5 (ZIS) via the introduction of different surfactants, affording a cost-effective and scalable modification strategy. The optimal catalyst, denoted as Z V IS-1, which is rich in Zn 2+ vacancies, exhibits exceptional performance in the visible-light-driven aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF). Specifically, Z V IS-1 achieves an HMF conversion of 72.2% and a DFF yield of 65.9% under optimized reaction conditions, corresponding to a 4.0-fold enhancement compared to pristine ZIS (16.5% DFF yield). The DFF formation rate over Z V IS-1 reaches 2108 μmol·g −1 ·h −1 , which is among the highest values reported for sulfide-based photocatalysts in this reaction system. Comprehensive characterization and mechanistic studies reveal that the introduced Zn 2+ vacancies not only promote the separation and migration of photogenerated charge carriers, but also serve as active sites for O 2 activation and HMF adsorption, effectively mitigating the intrinsic limitation of insufficient surface reactivity of pristine ZIS. This work provides new insights into the rational design of defect-engineered semiconductor photocatalysts for efficient and sustainable biomass valorization. Zn-vacancy-engineered Zn 2 In 2 S 5 nanoflowers achieve selective photocatalytic oxidation of HMF to DFF with enhanced charge separation and oxygen activation capability. Download: Download high-res image (96KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Chunrong Li,Geng Tang,Hongxia Chen,Tongyan Ren,Ping He
Facile one-pot hydrothermal synthesis of phase-pure β-NiS as non-noble metal cocatalyst. • Ultrasonic-assisted construction of intimately contacted NiS/ZIS 5 heterojunctions. • An exceptional H 2 evolution rate of 22.94 mmol g −1 h −1 is achieved over the 15% NiS/ZIS 5 composite. • β-NiS extends light absorption and accelerates charge separation in the ZIS 5 heterojunction. The development of earth-abundant non-precious metal cocatalysts to replace noble metal counterparts is critical for improving pristine photocatalyst performance and advancing the practical application of photocatalytic hydrogen production. In this study, a series of β-NiS-decorated pristine Zn 2 In 2 S 5 x% NiS/Zn 2 In 2 S 5 composite photocatalysts with different β-NiS loadings were fabricated via a facile ultrasonic-assisted deposition method, using non-precious β-NiS as a cocatalyst. All as-prepared x% NiS/Zn 2 In 2 S 5 composites showed significantly improved photocatalytic hydrogen evolution activity compared to pristine ZIS 5 . The optimized sample 15% NiS/Zn2In2S5 sample delivered a hydrogen production rate of 22.94 mmol g −1 h −1 , 6.75 times that of pure ZIS 5 . The remarkably improved photocatalytic hydrogen evolution activity of x% NiS/ZIS 5 composite photocatalyst is attributed to the synergistic effect from loaded β-NiS cocatalyst. It enhances light harvesting, and enables efficient separation of photogenerated carriers. This work provides a valuable reference for constructing high-performance composite photocatalysts for hydrogen production using non-noble metal cocatalysts coupled with pristine semiconductors.
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Zongwen Zhang,Yuge Zhang,Yi Zhang,Yueyue Kong,Xiang Li,Muhammad Tayyab,Shifu Chen,Sugang Meng
In this study, we synthesized a two-dimensional-three-dimensional (2D-3D) flower-like Zn 2 In 2 S 5 (ZIS225) photocatalyst via the hydrothermal method. The photocatalytic performance of ZIS225 was systematically evaluated for the degradation of methyl orange (MO) and hydrogen production under visible light irradiation. ZIS225 achieved a 100 % degradation rate of MO within 60 min, with a reaction rate constant of 6.11 h −1 , significantly outperforming commercial anatase TiO 2 (degradation rate of 42.7 % and reaction rate constant of 0.54 h −1 ). Moreover, ZIS225 demonstrated the ability to simultaneously degrade MO and produce hydrogen, with a hydrogen production rate of 4.9 μmol g −1 h −1 and a MO degradation rate of 99.7 %. The hydrogen production rate increased to 35.3 μmol g −1 h −1 upon in-situ photodeposition of 1 % Pt, maintaining stable performance over three cycles. Photoelectrochemical and electron paramagnetic resonance (EPR) analyses identified superoxide radicals (•O 2 − ) and photogenerated holes (h + ) as the primary active species. This research provides valuable insights for the development of efficient photocatalytic materials and offers technical references for dye pollution treatment and clean energy conversion.
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高影响因子
APPLIED SURFACE SCIENCE
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2026
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IF 6.9
Lin Jiang,Dingfeng Yang,Wen Jiang,Peng Dai,Ying Zhou,Congming Tang,Yuanyuan Li
A nano-layered Zn 2 In 2 S 5 photocatalyst, synthesized via a low-temperature oil bath and ultrasonic treatment, has been successfully applied to the selective photocatalytic oxidation of benzyl alcohol to benzaldehyde under visible light. The ultrasonically treated Zn 2 In 2 S 5 demonstrated excellent photocatalytic performance, achieving approximately 55.6% conversion of benzyl alcohol and selectivity towards benzaldehyde in an oxygen-free environment. Electron paramagnetic resonance and radical trapping experiments revealed that the photocatalytic conversion of benzyl alcohol to benzaldehyde is driven by photogenerated holes and carbon-centered radical intermediates. DFT calculations revealed that the S atoms of the ZnS 4 tetrahedra on the surface are the major active sites for activating benzyl alcohol. The study provides a simple approach to construct an efficient nano-layered photocatalyst, showcasing the potential of Zn 2 In 2 S 5 in photocatalytic organic synthesis reactions.
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高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
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2026
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IF 3.3
Ju Yun,Wang Fengqin,Wang Yang,Rafique Hummera,Zafar Muhammad Nadeem,Tayyab Muhammad
Semiconductor photocatalysis offers an environmentally sustainable approach for the elimination of organic contaminants from wastewater. However, the photocatalytic performance of Zn 2 In 2 S 5 (ZIS) is often limited by nanosheet aggregation, insufficient exposure of active sites, and the incomplete understanding of reactive oxygen species (ROS) evolution. In this study, marigold-like ZIS microspheres with a 2D-3D hierarchical porous structure were fabricated, and their performance in the photocatalytic degradation of rhodamine B (RhB) was investigated. The structural and physicochemical properties of the obtained ZIS were systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–Vis diffuse reflectance spectroscopy (DRS), and Mott–Schottky analysis. The results demonstrated that this unique structure integrates the advantages of the short charge migration distance of 2D materials and multiple light scattering/adsorption sites of 3D structures. Under AM 1.5 simulated sunlight irradiation, the as-prepared ZIS photocatalyst exhibited excellent photocatalytic activity, with a RhB degradation efficiency of up to 99.7% within 60 min and an apparent reaction rate constant (k) of 0.09 min⁻ 1 , which compares favorably with most previously reported ZIS-based photocatalysts. Through trapping experiments, electron spin resonance (ESR) spectroscopy and qualitative detection of hydrogen peroxide (H 2 O 2 ), the photocatalytic reaction mechanism of ZIS was elucidated: superoxide radical (·O 2 − ) is the primary active species, followed by photogenerated hole (h⁺), whereas hydroxyl radical (·OH) make the least contribution. More importantly, a cascade mechanism of “ O 2 − – H 2 O 2 –·OH” was proposed in this work, which not only resolves the inherent contradiction of insufficient valence band position of ZIS but also demonstrates the potential of hierarchical zinc indium sulfide photocatalysts for efficient environmental remediation applications.
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