MOLECULES
·
2023
·Vol. 28
·期 11
·4520
·
IF 4.6
Xiangrui Feng,Hongji Chen,Hongfei Yin,Chunyu Yuan,Huijun Lv,Qian Fei,Yujin Zhang,Qiuyu Zhao,Mengmeng Zheng,Yongzheng Zhang
ZnIn2S4(ZIS) is widely used in the field of photocatalytic hydrogen production due to its unique photoelectric properties. Nonetheless, the photocatalytic performance of ZIS usually faces problems of poor conductivity and rapid recombination of charge carriers. Heteroatom doping is often regarded as one of the effective strategies for improving the catalytic activity of photocatalysts. Herein, phosphorus (P)-doped ZIS was prepared by hydrothermal method, whose photocatalytic hydrogen production performance and energy band structure were fully studied. The band gap of P-doped ZIS is about 2.51 eV, which is slightly smaller than that of pure ZIS. Moreover, due to the upward shift of its energy band, the reduction ability of P-doped ZIS is enhanced, and P-doped ZIS also exhibits stronger catalytic activity than pure ZIS. The optimized P-doped ZIS exhibits a hydrogen production rate of 1566.6 μmol g−1h−1, which is 3.8 times that of the pristine ZIS (411.1 μmol g−1h−1). This work provides a broad platform for the design and synthesis of phosphorus-doped sulfide-based photocatalysts for hydrogen evolution.Keywords:ZnIn2S4;phosphorus doping;photocatalytic;hydrogen generation
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高影响因子
ACS Omega
·
2019
·
IF 2.584
Ruijie Yang,Kelin Song,Jiansheng He,Yingying Fan,Rongshu Zhu
In this work, the study of photocatalytic hydrogen production by RGO/ZnIn2S4 with simultaneous degradation of organic amines was carried out in the presence of organic amines in wastewater as the sacrificial agents. The effects of several factors, such as organic amine types, pH value, catalyst concentration, organic amine concentration, and sunlight source, on the photocatalytic activity of RGO/ZnIn2S4 for H2 production were investigated. At the same time, its performance of degrading organic amines during H2 production was also examined. The results showed that the order of H2 production activity of RGO/ZnIn2S4 in six organic amine solutions was N(CH2CH3)3 > N(HOCH2CH2)3 > N(CH3)3 > HO(CH2)2NH2 > C6H5–N2> CO(NH2)2, and the highest H2 production was in N(CH2CH3)3 (triethylamine) solution, being 1597 μmol·g–1·h–1, which is 2.6 times as high as that using the aqueous solution mixture of Na2S and Na2SO3 as the sacrificial agent. In addition, when the pH was 13, the catalyst concentration was 1.0 g·L–1, and the triethylamine concentration was 1.0 mol·L–1, the photocatalytic activity was the highest. Furthermore, the relationship between triethylamine concentration and H2 production was analyzed according to the theory of dynamics.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Haoze Li,Mengyao Wang,Yingbing Zhang,Ye Chen,Li Wang,Jianping Yang
The photoreforming of plastic waste into high-value chemicals and H 2 fuels presents a sustainable and energy-efficient strategy to mitigate environmental pollution and energy crises. However, achieving high selective valuable products remains challenging due to the indiscriminate cleavage of chemical bonds in plastics. Herein, this study reports a sulfur-vacancies-rich ZnIn 2 S 4 photocatalyst decorated with ultrafine Ni nanoparticles (Ni 0.2 @ZIS-S v ) that enables highly photoreforming of poly(ethylene terephthalate) (PET) into formate and H 2 via targeted C─C bond cleavage under mild alkaline conditions. The Ni 0.2 @ZIS-S v photocatalyst achieves an H 2 evolution rate of 4.5 mmol g −1 h −1 , a 20.2-fold enhancement over pure ZnIn 2 S 4 , while formate is the primary liquid product with the selectivity reaching 84.8%. Mechanistic analysis reveals that the combined effects of Ni nanoparticles and sulfur-vacancies modify the electronic structure of ZnIn 2 S 4 , improving charge separation, lowering the energy barrier for H 2 generation, and facilitating selectively C─C bond cleavage. This dual optimization enhances both hydrogen yield and formate selectivity, demonstrating an effective strategy for designing advanced photocatalysts to upcycle plastic waste into high-value chemicals and clean energy.
研究领域:
光催化化学
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环境催化
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能源材料
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高分子降解
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清洁能源转化
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MOLECULES
·
2025
·Vol. 30
·期 22
·4368
·
IF 4.6
Shanhao He,Li Liu,Min Liu,Jinjun Tian,Yan Xue,Keliang Wu
To address the challenges of low solar energy utilization efficiency and rapid recombination of photogenerated charge carriers in photocatalytic hydrogen evolution, this study successfully constructed a composite photocatalyst of ZnIn2S4(ZIS) supported on N-doped hollow carbon spheres (N-HCS), denoted as ZIS/N-HCS, via a combination of template etching and in situ growth strategies. Characterization results demonstrate that this hollow structure possesses a high specific surface area (48.41 m2/g) and a narrowed bandgap (2.41 eV), achieve broad-spectrum light absorption, thereby enabling the catalyst to generate a local hot spot temperature of 136 °C under AM1.5G conditions. The optimized ZIS/N-HCS-0.30 sample exhibited a significantly enhanced photocurrent response (8.26 μA cm−2) and improved charge separation efficiency. When evaluated at a set solution temperature of 20 °C, the material exhibited a photocatalytic hydrogen evolution rate of 17.03 mmol g−1·h−1, which is 7.06 times higher than that of pure ZIS. Furthermore, it demonstrated excellent cycling stability. This work elucidates the synergistic role of the hollow photothermal structure in enhancing solar energy utilization and catalytic reaction kinetics, providing a new strategy for designing efficient solar-driven hydrogen production systems.
研究领域:
材料科学
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光催化
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可再生能源
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纳米技术
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氢气制备
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Nan Li,Aihua Yan,Tongyang Zhang,Fei Huang,Zhiqing Xu,Heng Wang,Bolei Hui,Huaqi Yuan,Zigao Su
Multi-component optimization offers a potential route to achieve efficient bifunctional photocatalysis. However, rationally combining different components and clearly elucidating the photogenerated carrier dynamics still remain a significant challenge. In this study, ternary FeS 2 /S v -ZnIn 2 S 4 /FeOOH composites were constructed for efficient photocatalytic hydrogen production coupled with benzaldehyde generation. This material integrated sulfur vacancy, Ohmic-type FeS 2 /S v -ZnIn 2 S 4 contact and p-n-type S v -ZnIn 2 S 4 /FeOOH heterojunction, synergistically promoting the charge transfer and synchronous electron-hole utilization. As a result, high evolution rates of 21.5 and 21.2 mmol·g −1 ·h −1 for hydrogen production and benzaldehyde generation were achieved, accompanying with an apparent quantum efficiency of 14.2% at 420 nm, a fantastic benzaldehyde selectivity of 99.84%, and excellent photostability. This study provides a multi-component engineering strategy for regulating the charge carrier dynamics and enhancing the bifunctionally photocatalytic performance.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124637
·
IF 7.5
Qiushuo Hu,Xinle Wang,Fengxia Tong,Xizhuang Liang,Dujuan Dai,Xiaolei Bao,Jianxun Qiu
Photocatalytic reforming of polylactic acid (PLA) plastic into green hydrogen (H 2 ) and high-value chemicals provides a promising approach for addressing environmental and energy issues. However, the rational design of high-performance photocatalysts remains a critical challenge. Herein, a novel NiS/ZnIn 2 S 4 (NS/ZIS) Schottky heterojunction is prepared through the uniform decoration of ZnIn 2 S 4 nanosheets with amorphous NiS. Mechanism studies reveal that the construction of Schottky barrier promotes the electrons transfer from ZnIn 2 S 4 to NiS, achieving efficient H 2 evolution. The photogenerated holes remaining on the surface of ZnIn 2 S 4 possess moderate oxidation activity, which can enable efficient and selective catalytic conversion of waste plastics to pyruvic acid (PA). Consequently, the NS/ZIS composite exhibits outstanding visible-light-driven generation rates of H 2 and PA, reaching 3.81 mmol g −1 h −1 and 2.95 mmol g −1 h −1 , respectively. These values are 4.6-fold and 2.3-fold as high as those acquired from pristine ZnIn 2 S 4 . It also achieves a PA selectivity of 80.6% and an apparent quantum yield of 10.3% at 420 nm. Moreover, the NS/ZIS thin film synthesized via drop-casting has prominent H 2 evolution activity and PA selectivity under natural sunlight exposure, which manifests its promising prospect in practical industrial utilization. This work presents a feasible method for converting waste plastic into H 2 and value-added chemicals, thereby contributing to the mitigation of escalating white pollution.
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ACS Catalysis
·
2026
·Vol. 16
·期 15
·14855-14865
·
IF 13.6
Chen Kun,Wang Zhou,Zhou Xuefei,Ma Tenghao,Zhao Peng,He Yuan,Chen Zhanwei,Zhou Zhihua,Yang Shaowei,Zhang Qiuyu,Zhang Hepeng
ZnIn 2 S 4 -based photocatalysts have attracted considerable attention in biomass valorization owing to their tunable band structures and abundant surface reaction sites. However, the aqueous-phase selective photooxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) remains highly challenging due to the insufficient O 2 activation, substrate mineralization, and competitive coupling side reactions. Herein, a single-atom Sn-doped ZnIn 2 S 4 photocatalyst (Sn-ZIS) was constructed. Systematic characterizations confirm that Sn species are atomically dispersed and incorporated into the ZnIn 2 S 4 lattice through Sn-S coordination. Under aqueous-phase reaction conditions, Sn-ZIS achieves 88.7% HMF conversion, 80.5% DFF selectivity, and 93.3% C equilibrium, higher than those of ZnIn 2 S 4 and many reported aqueous-phase photocatalytic systems. The better performance of Sn-ZIS is mainly attributed to the synergistic regulation of the band structure and local electronic structure induced by Sn incorporation. The optimized band structure moderately weakens the oxidative ability of photogenerated holes, thereby reducing HMF mineralization to CO 2 . While the regulation of the local electronic structure promotes O 2 adsorption and activation to generate superoxide radicals, it simultaneously facilitates DFF desorption from the catalyst surface. Synergy between the two functions drives the selective conversion of HMF into DFF. This work demonstrates the potential of single-atom doping for enhancing aqueous-phase biomass photooxidation and provides a rational strategy for designing efficient ZnIn 2 S 4 -based photocatalysts.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Xin-Zhi Tian,Bai-Rui Chen,Ao-Sheng She,Wei Wang,Wen-Ya Zhong,Hai-Long Wang,Chi Xing,Ke-Xian Li,Yi-Hong Wu,Xiao-Wei Wu,Bo Weng,Jia-Min Lu,Yan-Xin Chen
Facing the current energy crisis, developing new green energy and advancing high-quality energy development are crucial, as multimetal sulfide semiconductors have great potential in photoenergy conversion. This study prepared a carbon-containing bimetallic phosphide (NiCoP@C) cocatalyst from a CoNi-based MOF, which was combined with ZnIn 2 S 4 (ZIS) hollow nanoflowers to enhance electrical conductivity and photocatalytic hydrogen production of the composite. XPS shows electron cloud density of ZIS increases in the composite via interfacial electronic reconstruction. FESEM reveals NiCoP@C nanoparticles are evenly anchored on surface and interlayer gaps of ZIS, forming a hierarchical heterostructure with more active sites. Performance tests show Z-NiCoP@C has a photocurrent density of 129.58 μA cm −2 (vs. 34 μA cm −2 of unmodified ZIS). Under 10 W visible light with 10% TEOA as a sacrificial agent, 10-h cumulative H 2 yield of the composite is 19.52 mmol g −1 , with a H 2 evolution rate of 1.95 mmol g −1 h −1 , 7.8-fold that of pristine ZIS (0.25 mmol g −1 h −1 ).
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ChemSusChem
·
2026
·Vol. 19
·期 4
·e202502442
·
IF 5.9
Wanchuan Jin,Aoyun Wang,Xinhua Li,Yuxin Wang,Yuanhong Liu,Ruishi Xie,Rongrong Luo,Yuanli Li
Photocatalytic hydrogen peroxide (H 2 O 2 ) production is a promising green and sustainable approach, but achieving high efficiency in pure water systems without the sacrificial agents remains a significant challenge. Here, gold (Au) nanoparticles with varying loadings are photodeposited onto the surface of ZnIn 2 S 4 (ZIS) nanoflowers to enhance photocatalytic H 2 O 2 production. The optimized Au 1000 -ZIS sample achieves an exceptional H 2 O 2 production rate of 906.13 µmol g −1 h −1 under pure water conditions, along with outstanding cycling stability. Mechanistic studies reveal that multivalent Au nanoparticles serve as efficient electron trapping sites, thereby significantly enhancing the spatial separation of photogenerated charge carriers and facilitating rapid charge transfer. This enhanced charge transfer kinetics facilitates H 2 O 2 photosynthesis through a dual-channel process (2-electron oxygen reduction and water oxidation) without any additional sacrificial agent. This study enhances the understanding of the critical role of Au as a cocatalyst in photocatalytic processes and presents a promising strategy for sustainable and efficient H 2 O 2 production. Graphical Multivalent Au nanoparticles loaded onto ZnIn 2 S 4 nanoflowers have been constructed to effective H 2 O 2 photosynthesis from pure water without sacrificial agents, in which Au cocatalysts act as an electron trap, boosting accelerated electron transfer kinetics and enabling a dual-channel oxygen reduction reaction/water oxidation mechanism, achieving a high yield of 906.13 µmol g −1 h −1 .
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Molecular Catalysis
·
2026
·
IF 4.3
Tongxin Li,Hongxu Chu,Mingyu Xu,Xuezhong Fang,Yancheng Gao,Wan Li,Can Wu,Shutong Lin,Jiawei Qiang,Liming Peng
Vacancy defects and a heterojunction were co-introduced on ZnIn 2 S 4 through a one-step in-situ synthesis strategy. • The CeO 2 /ZnIn 2 S 4 composite material exhibits excellent activity in the photocatalytic hydrogen evolution reaction without the participation of Pt co-catalyst. • The revealed carrier transport dynamics in the CeO 2 /ZnIn 2 S 4 heterostructure provide a blueprint for engineering high-performance heterojunction materials. Zinc indium sulfide (ZnIn 2 S 4 ) is a promising photocatalyst whose performance is limited by inefficient charge separation. Herein, a one-pot strategy is proposed for the construction of CeO 2 /ZnIn 2 S 4 heterojunctions, with the alkaline environment concurrently inducing the generation of vacancy defects. The successful preparation of the CeO 2 /ZnIn 2 S 4 heterostructures was confirmed by a variety of characterization methods. Without employing a Pt cocatalyst, this heterojunction composite exhibits outstanding catalytic performance and long-term durability for photocatalytic H₂ production, which is mainly attributed to the plentiful active centers and improved charge carrier migration. DFT-based theoretical simulations further corroborated the charge transfer between CeO 2 and ZnIn 2 S 4 . These findings offer a new conceptual and material framework for constructing high-performance defect-enriched heterostructures. Download: Download high-res image (203KB) Download: Download full-size image
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Zhenyu Zhang,Changlei Huang,Ze Liu,Chengkai Li,Danni Zeng,Rongfeng Guan,Changjian Zhou
Clean and sustainable energy conversion technology is a key contemporary scientific topic, and photocatalytic hydrogen production offers a new way to address the energy crisis. Here, based on the synergistic strategy of vacancy engineering and S-scheme heterostructure construction, a bifunctional photocatalyst of MoS 2 /ZnIn 2 S 4 -Vs (MoS 2 /ZIS-Vs) with sulfur vacancies (Vs) was developed by one-pot hydrothermal method. The best sample’s hydrogen production efficiency was 75.34 mmol·g −1 ·h −1 , which is 21 times higher than that of unmodified ZIS (3.42 mmol·g −1 ·h −1 ). Meanwhile, under air atmospheric conditions, its H 2 O 2 yield is 1126.66 μmol·g −1 ·h −1 , which is approximately 1.92 times that of ZIS (587.20 μmol·g −1 ·h −1 ). Under oxygen atmosphere conditions, this rises to 2144.84 μmol·g −1 ·h −1 , which is approximately twice the amount in an air atmosphere. Multiple characterizations show MoS 2 /ZIS-Vs’s vacancy engineering and heterostructure adjust ZIS’s band structure, enhance light absorption, and boost charge separation/transfer, with good stability. The DFT calculations show that MoS 2 /ZIS-Vs has an extremely low Gibbs free energy (−0.03 eV). This indicates that the synergistic action of the S-scheme heterojunction and sulfur vacancies significantly reduces the reaction barrier, thereby improving hydrogen and H 2 O 2 production efficiency. The research findings show that it has important application value in the field of solar energy conversion.
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Surfaces and Interfaces
·
2025
·
IF 6.3
Bo Wang,Wenxu Zhang,Wei Li,Huiyang Xu,Yongyi Li,Shuanglong Li,Xiaorui Huang,Shichao Jiao,Di Lin,Huixiang Yan
The production of hydrogen through photocatalytic technology has become a very attractive way to alleviate the problem of environmental pollution. In this work, A ZnIn 2 S 4 Co 3 O 4 -(SiC@g-C 3 N 5 ) triple heterojunctions structure was constructed. In this structure, a P-N heterojunction is formed by Co 3 O 4 with ZIS, a Z-type heterojunction is constructed by ZIS with CN5, and a II-type heterojunction is formed by CN5 with SiC. The three are synergistically used to optimize the carrier migration path. Under this synergistic mechanism, Co 3 O 4 increases the concentration of photogenerated electrons in the ZIS conduction band. It allows the photogenerated electrons to participate in the H⁺ reduction hydrogen generation reaction. Meanwhile, SiC facilitates further electron enrichment in the CN5 conduction band via the type - II heterojunction.SiC also boosts carrier migration efficiency through the Z - type pathway. In the ZnIn 2 S 4 - Co 3 O 4 -(SiC@g - C 3 N 5 ) system, the consumption rate of useless photogenerated electron - hole pairs per unit time is much higher than that in the ZIS - CN5 system with only one Z - type heterojunction. The number of photogenerated electrons on ZIS in the ZnIn 2 S 4 - Co 3 O 4 -(SiC@g - C 3 N 5 ) system is much higher than that in the ZIS - CN5 system. This greatly reduces the probability of the system's photogenerated carrier complexation. It also increases the charge separation efficiency. As a result, the photocatalytic efficiency is significantly improved. 20ZIS-Co-(SiC@CN5) composites exhibited efficient hydrogen production (13655μmol·g -1 -h -1 ) in hydrogen production experiments. The ZIS - Co - (SiC@CN5) composites enable efficient separation and directional migration of photogenerated carriers via the collaborative action of the multilevel heterojunction. This action offers a scalable concept for designing highly efficient and stable photocatalysts for hydrogen production.
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