RENEWABLE ENERGY
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2026
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IF 9.1
Shengqu Zhang,Enli Liu,Jiaxing Liu,Xintao Feng,Yaping Jian,Yinhua Jiang,Yuanzhi Hong
The advanced photocatalytic technology with conversion of renewable solar energy to the clean hydrogen (H 2 ) and hydrogen peroxide (H 2 O 2 ) chemicals can effectively realize the national goals of “carbon emission peak & carbon neutrality”. To this end, the indium sulfide (In 2 S 3 )/zinc indium sulfide (Zn 3 In 2 S 6 ) heterojunctions with double sulfur vacancies (Vs) were successfully prepared by a feasible in-situ hydrothermal approach. The as-formed heterojunctions (denoted as Vs-ISZIS6) showed the high-performance bifunctional activities towards the both photocatalytic H 2 evolution and H 2 O 2 generation. Especially, the 10Vs-ISZIS6 sample presented the highest photocatalytic H 2 production rate (7051 μmol/h/g), which is 32.1, 2.0, 14.4, and 1.4-folds greater than that of In 2 S 3 , Zn 3 In 2 S 6 , VS-In 2 S 3 , and Vs-Zn 3 In 2 S 6 , respectively. In addition, the 20Vs-ISZIS6 heterojunction possessed the optimum concentration of H 2 O 2 production with reaching 256.4 μM under 2 h of visible-light irradiation. The boosted photocatalytic performances might be caused by the synergistic effect of the presence of Vs and the construction of heterostructure between Vs-In 2 S 3 and Vs-Zn 3 In 2 S 6 , leading to the increasing visible-light absorption and promoting the photogenerated carriers separation efficiency. As a result, the possible mechanism of improved photocatalytic performances of the Vs-ISZIS6 heterojunctions was proposed. This work offers an available avenue for developing of nanostructured heterojunctions for sustainable solar-to-chemical fuel conversion.
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高影响因子
Inorganics
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2026
·Vol. 14
·期 6
·163
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IF 3.4
Shuo Yan,Qing-Xu Fan,Jun-Peng Liu,Fen-Lian Wang,Yu-Ji Gao
The selective photocatalytic oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) into high-value 2,5-diformylfuran (DFF) under green conditions is a promising route toward carbon neutrality. However, achieving high efficiency and selectivity in pure water remains challenging due to limited oxygen solubility and nonselective radical reactions. In this study, a series of amorphous MoS3-modified Zn3In2S6nanoflowers (x%MS/ZIS) with varying MoS3loadings were successfully synthesized via a one-step hydrothermal method and served as the photocatalysts for the highly selective oxidation of HMF to DFF. The incorporation of MoS3significantly enhances visible-light absorption, promotes efficient separation of photogenerated carriers, and accelerates surface reaction kinetics. Under visible light irradiation, the optimized 2.4%MS/ZIS catalyst achieves 64.7% HMF conversion and 89.5% DFF selectivity in pure water within 6 h, ~39-fold enhancement in DFF yield compared to pristine Zn3In2S6. Radical scavenging experiments and electron paramagnetic resonance analyses suggest that superoxide radicals (·O2−) and photogenerated holes are the main reactive oxygen species governing the selective oxidation, while the absence of ·OH radicals suppresses overoxidation. This study demonstrates a viable and green strategy for the valorization of biomass platform molecules through visible-light-driven photocatalysis in pure water.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Renzhi Xiong,Yiting Sun,Jiahao Huang,Fangde Liu,Yanhe Xiao,Baochang Cheng,Shuijin Lei
Photocatalytic production of H 2 O 2 faces challenges such as low charge separation efficiency, narrow light absorption, and sluggish reaction kinetics. This study developed a WO 3− x @Zn 3 In 2 S 6− x S-scheme heterojunction and designed atomic-level W S interface chemical bonds through a defect-induced strategy to address these challenges. Oxygen/sulfur vacancies not only promote the formation of chemical bonds but also trigger a local surface plasmon resonance effect (LSPR) in WO 3− x , enabling full-spectrum light harvesting and photothermal heating. The S-scheme charge transfer retains the high-energy electrons in Zn 3 In 2 S 6− x and holes in WO 3− x to realize dual H 2 O 2 generation pathways. Coupled with LSPR-induced thermal activation, this multidimensional strategy achieved an unprecedented H 2 O 2 yield (3891.2 μmol g −1 h −1 ) under simulated sunlight, which is 9.2 times and 161.5 times higher than that of the non-thermally activated pristine Zn 3 In 2 S 6− x and WO 3− x , respectively. In situ X-ray photoelectron spectroscopy and a series of photoelectrochemical measurements confirmed the S-scheme charge dynamics, and electron spin resonance verified the thermally enhanced reactive oxygen species generation. This work establishes defect-mediated heterointerfacial engineering as a universal paradigm for solar-to-chemical energy conversion and provides feasible insights for designing photothermal-assisted photocatalytic systems.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Xiaoyan Zhang,Wenkang Ni,Xuanyu Yue,Zhijie Wang,Zizhong Zhang,Ke Wang,Wenxin Dai,Xianzhi Fu
Converting CO 2 into CO, CH 4 , and other hydrocarbons using solar energy presents a viable approach for addressing energy shortages. In this study, photocatalysts with S-deficient WO 3 /Zn 3 In 2 S 6 (WO 3 /V S -ZIS) S-scheme heterojunctions have been successfully synthesized. Under UV–vis light irradiation, 20 %WO 3 /V S -ZIS demonstrated significantly improved CO 2 reduction activity and CH 4 selectivity. Detailed characterization and density functional theory (DFT) calculations reveal that the enhanced performance is due to the synergistic optimization of the S-scheme heterojunction and sulfur vacancies (V S ) for CO 2 reduction. The presence of V S aids in the adsorption and activation of CO 2 and enhances the separation of charge carriers. The 2D/2D S-scheme heterostructure assembled with WO 3 nanosheets not only accelerates the migration and separation of photoexcited charge carriers but also improves the adsorption of H 2 O and the formation of V S , thereby increasing the adsorption and activation of CO 2 and facilitating the protonation of CO* to produce CH 4 . This study clarifies the synergistic effect of V S and S-scheme heterostructures in improving photocatalytic performance, offering valuable insights into the photoactivation process of CO 2 at V S in S-scheme heterojunctions.
研究领域:
材料科学
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环境科学
·
化学
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高影响因子
JOURNAL OF CATALYSIS
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2026
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IF 6
Cheng-Jie Zheng,Ting Wang,Ren-Chang Zhang,Ke Xu,Zhi-Cai He,Jian Zhang,Guo-Bo Huang,Mingyuan Wang,Guiwu Liu,Wei Chen
The development of efficient photocatalytic systems for hydrogen peroxide (H 2 O 2 ) production from pure water remains a huge challenge due to rapid charge recombination and insufficient redox capability in single-component photocatalysts. Herein, we successfully constructed the S-scheme oxygen-vacancy-enriched MoO 3 quantum dots (Ov-MoQDs)/sulfur-vacancy-rich Zn 3 In 2 S 6 (Sv-ZIS) heterostructures by coupling Sv-ZIS nanosheets with Ov-MoQDs. The optimized 3Ov-MoQDs/Sv-ZIS sample achieves an outstanding H 2 O 2 production rate of 85.8 ± 3.1 μM under visible light illumination for 1 h in the pure water, which is about 3.5 and 45.1 times higher than those of Sv-ZIS and Ov-MoQDs, respectively. Through comprehensive in situ and ex situ characterizations combined with theoretical calculations, we demonstrate that the enhanced activity stems from efficient charge separation and transfer across the heterogeneous interfaces via an S-scheme mechanism. Furthermore, the H 2 O 2 photosynthesis over Ov-MoQDs/Sv-ZIS heterostructures is found to proceed through a two-step single-electron oxygen reduction reaction (ORR) pathway. This work provides valuable insights into the rational design of advanced heterostructured photocatalysts for sustainable chemical synthesis.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Xiaoyu Hu,Bo Shen,Zhenghao Chen,Zilun Ding,Chunhua Li
Neonicotinoid pesticides pose a significant threat to non-target organisms and human health. To overcome the efficiency bottleneck caused by misaligned adsorption and catalytic sites in Zn 3 In 2 S 6 -based photocatalysis, a hollow octahedral Cu-doped Zn 3 In 2 S 6 (CuZIS) is engineered using Cu-MOF as a self-template. This design achieves spatially unified and fully exposed adsorption–catalytic co-sites. The introduced Cu centers efficiently induce pronounced electron delocalization to suppress carrier recombination while coordinating the pyridinic nitrogen of imidacloprid (IMD) to enhance IMD enrichment. The hollow architecture enlarges the specific surface area from 14.66 to 131.65 m 2 g −1 and affords a saturation adsorption capacity of 46.04 mg g −1 . Under simulated visible light, 99.4% IMD is removed within 30 min—4.8 times faster than pristine Zn 3 In 2 S 6 . The CuZIS demonstrates exceptional robustness in complex water matrices containing ions, organic matters, and microplastics. It also exhibits superior broad-spectrum activity against various organic contaminants, affirming its potential for water treatment. Cu centers convert O 2 into 1 O 2 and • O 2 − , triggering hydroxylation, denitration, and ring-opening at the C9, C10, N11, and N15 sites of IMD to yield low-toxicity products. This work validates self-template heteroatom doping for constructing high-performance photocatalysts with integrated adsorption-catalysis co-sites for advanced water treatment.
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高影响因子
JOURNAL OF POWER SOURCES
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2026
·
IF 8.4
Huiyang Xu,Junwei Zhuo,Wenjun Chen,Zhiwei Li,Xiaorui Huang,Yongyi Li,Shuanglong Li,Bo Wang,Junyu Huang,Zimo Wang,Wei Li
A novel Zn 3 In 2 S 6 @Bi 2 Te 3 @C 3 N 5 ternary S-scheme/Type-I heterojunction is constructed. • Topological insulator Bi 2 Te 3 serves as the charge transport bridge. • The catalyst has an exceptional HER rate (42384.11 μmol g −1 h −1 ) with a 29.83% AQY. Addressing the core electrochemical bottlenecks of sluggish interfacial charge transfer and the charge separation-redox capability trade-off in photoelectrochemical water splitting, this work introduces 3D topological insulator Bi 2 Te 3 as a backscattering-free electrochemical charge transport bridge to construct a Zn 3 In 2 S 6 @Bi 2 Te 3 @C 3 N 5 ternary heterojunction with Step-scheme/Type-I synergistic charge transfer. The rationally optimized sample achieves an exceptional visible-light-driven hydrogen evolution rate of 42384.11 μmol g −1 h −1 with an apparent quantum yield of 29.83% at 420 nm, which are 1.68 and 27.43 times higher than those of pristine Zn 3 In 2 S 6 and as-synthesized C 3 N 5 , respectively. The superior performance originates from three synergistic effects: enhanced light harvesting by the multi-component system, promoted carrier separation driven by the robust built-in electric field at heterointerfaces, and improved charge transport efficiency along with optimized hydrogen evolution reaction (HER) kinetics endowed by Bi 2 Te 3 's topological properties. These advantages accelerate electron transport and suppress non-radiative recombination, providing insights for optimizing the kinetics of the HER at the electrochemical interface. Photocatalytic water splitting for hydrogen production offers a promising route to address the energy crisis; however, the rapid recombination of photogenerated carriers in conventional photocatalysts severely limits their efficiency. To overcome this bottleneck, we designed and constructed a novel Zn 3 In 2 S 6 @Bi 2 Te 3 @C 3 N 5 ternary heterojunction photocatalyst. In this system, Bi 2 Te 3 acts as a topological insulator and charge-transport bridge, forming a cascaded band alignment with Zn 3 In 2 S 6 and C 3 N 5 . This establishes a synergistic charge-transfer pathway that effectively promotes the spatial separation of photogenerated electron–hole pairs. The optimized catalyst exhibits outstanding visible-light-driven hydrogen evolution performance, achieving a remarkable HER rate of 42384.11 μmol g −1 h −1 and a high apparent quantum yield of 29.83% at 420 nm, along with excellent long-term cycling stability. This work provides new insights into designing efficient and stable photocatalysts for hydrogen evolution. Download: Download high-res image (381KB) Download: Download full-size image
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Chunhua Li,Xiaoyu Hu,Zhenghao Chen,Zilun Ding
The excessive use of imidacloprid (IMD) poses a severe threat to human health and ecological stability. This study uniformly anchors MOF808 to the edges of Zn 3 In 2 S 6 nanosheets with sulfur vacancies by introducing EDTA ligands onto MOF808, successfully constructing a MOF808-EDTA/S-Zn 3 In 2 S 6 (MEZ) Z-scheme heterojunction for the efficient degradation of IMD. The presence of sulfur vacancies and interfacial In-O bonds in MEZ facilitates the enrichment of electrons on the S-Zn 3 In 2 S 6 side, thereby enhancing its ability to adsorb and activate oxygen and endowing MEZ with excellent photocatalytic activity. The optimized MEZ achieves a degradation rate of 98.4 % for IMD, with rate constants 5.0 and 76 times higher than those of S-Zn 3 In 2 S 6 and MOF808, respectively. After five photocatalytic cycles, MEZ still retains over 90 % photocatalytic activity, demonstrating the excellent stability of the surface catalyst, which can be successfully applied to the degradation of IMD in actual water. Singlet oxygen, superoxide radicals, and hydroxyl radicals preferentially attack the C7, C9, and N14 sites of IMD, leading to hydroxylation, denitration, ring-opening reactions, and dealkylation. These reactions decompose IMD into smaller products and significantly reduce IMD’s environmental risks. This study proposes an effective strategy to regulate the distribution of metal–organic frameworks on semiconductor surfaces and offers new insights for rationally developing Z-scheme photocatalysts to remove emerging pollutants in environmental remediation.
研究领域:
环境科学
·
材料化学
·
催化
·
纳米技术
·
污染控制
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高影响因子
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