JOURNAL OF SOLID STATE CHEMISTRY
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2026
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IF 3.2
Xiaoyu Tong,Jiali Yang,Qian Xiao,Chenchen Xing,Yifang Ao,Yanping Hou,Zuofang Yao
The BaTiO 3 /CdIn 2 S 4 (2BTO/CIS) heterojunction photocatalysts were prepared via a self-assembly method for the degradation of levofloxacin (LEV) under visible light illumination. Compared to pure BTO and CIS, the 2BTO/CIS composite exhibited significantly enhanced photocatalytic activity, achieving LEV degradation efficiency of 86.1% within 60 minutes. The improved performance is attributed to the heterojunction structure, which broadened light absorption range, enhanced charge separation, and extended the carrier lifetime (6.07 × 10 -7 s), thereby promoting the generation of active species of ·O 2 - and h + . The charges transfer route at the interface of heterojunction driven by interfacial electric field was revealed based on radical trapping experiments, electron spin resonance (ESR) analysis, and density functional theory (DFT) calculations. According to the identified degradation intermediates, LEV degradation pathways were likely to involve depiperazinization and cleavage of the quinolone ring. Moreover, most of LEV degradation intermediates showed lower ecological toxicity. The composite also demonstrated good stability, maintaining 75.6% degradation efficiency after five cycles. This study provides reference for the potential application of perovskite-based heterojunctions in wastewater treatment.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Zizhong Chen,Lu Wang,Xiuling Jiao,Yuguo Xia,Dairong Chen
Regulating bulk carrier separation and surface reaction kinetics is critical for effective photoelectrochemical water splitting. Here, we simultaneously address these challenges by constructing a heterojunction through in situ thermal reconstruction of CdIn 2 S 4 , which generates an amorphous InO x passivation layer to stabilize the surface while Ru single-atom sites accelerate hole injection. This dual modification synergistically enhances charge separation and interfacial kinetics, yielding an applied bias photon-to-current efficiency (ABPE) of 2.11 % at 0.45 V and a photocurrent density of 4.56 mA cm −2 at 1.23 V vs. RHE. Combined theoretical and experimental analyses reveal that the InO x layer suppresses recombination, while Ru single atoms lower the energy barrier for oxygen evolution reaction by modifying rate-determining steps. This work demonstrates surface reconstruction as a versatile route to optimize both stability and catalytic activity in metal sulfide photoanodes.
研究领域:
材料科学
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电化学
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纳米技术
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能量转换
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表面工程
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MOLECULES
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2022
·Vol. 27
·期 21
·7292
·
IF 4.927
Jiangwei Zhang,Fei Yu,Xi Ke,He Yu,Peiyuan Guo,Lei Du,Menglong Zhang,Dongxiang Luo
Conversion of hazardous compounds to value-added chemicals using clean energy possesses massive industrial interest. This applies especially to the hazardous compounds that are frequently released in daily life. In this work, a S-scheme photocatalyst is optimized by rational loading of carbon quantum dots (CQDs) during the synthetic process. As a bridge, the presence of CQDs between TiO2and CdIn2S4improves the electron extraction from TiO2and supports the charge transport in S-scheme. Thanks to this, the TiO2/CQDs/CdIn2S4presents outstanding photoactivity in converting the polycyclic aromatic hydrocarbons (PAHs) released by cigarette to value-added benzaldehyde. The optimized photocatalyst performs 87.79% conversion rate and 72.76% selectivity in 1 h reaction under a simulated solar source, as confirmed by FT-IR and GC-MS. A combination of experiments and theoretical calculations are conducted to demonstrate the role of CQDs in TiO2/CQDs/CdIn2S4toward photocatalysis.Keywords:carbon quantum dots;photocatalysis;degradation;polycyclic aromatic hydrocarbons
研究领域:
环境科学
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材料科学
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PubMed
高影响因子
Catalysts
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2019
·Vol. 9
·期 12
·1067
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IF 3.444
Zheng Ma,Xiumin Ma,Xiutong Wang,Nazhen Liu,Xuehui Liu,Baorong Hou
In this work, the photo-catalytic activity of TiO2is considerably enhanced via sensitization with CdIn2S4, and its application for protecting Q235 from corrosion in splash zones is examined. TiO2nanotube arrays (NTAs) are prepared on a flat Ti substrate via two-step anodization. CdIn2S4 is deposited on the surface of TiO2NTAs by hydrothermal reaction. TiO2NTAs with enormous specific surface areas and large-diameter hollow nanostructures are found to benefit the immobilization of CdIn2S4. As a narrow band gap semiconductor, CdIn2S4is able to extend the light absorption range of TiO2, and the construction of an n–n type hetero-junction accelerates the separation of carriers. Strong solar light, which accelerates the corrosion of Q235 in the splash zone area, is converted into the necessary condition for protecting Q235 from corrosion. In this work, TiO2is sensitized with MoS2microspheres (MoS2/TiO2nanocomposites), which were prepared on a flat Ti substrate via a two-step anodization and hydrothermal method, sequentially.Keywords:corrosion;photocathodic protection;visible light;narrow bandgap semiconductor;TiO2
研究领域:
材料科学
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电化学
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PHYSICA B-CONDENSED MATTER
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2026
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IF 3.2
Junyu Huang,Di Lin,Wei Li,Bo Wang,Huiyang Xu,Zimo Wang,Yongyi Li,Shuanglong Li,Xiaorui Huang
The PCN/CdS/CdIn 2 S 4 composites exhibit excellent photocatalytic performance for H 2 evolution, H 2 O 2 production and dye degradation. • Spontaneous interfacial band bending drives a dual Z-scheme pathway to preserve highly active photogenerated charge carriers. • The superoxide radicals (.•O 2 − ) is the primary species for both continuous H 2 O 2 generation and rapid pollutant decomposition. Addressing the escalating global energy and environmental crises demands efficient, sustainable, and robust technologies. In this study, a ternary composite PCN/CdS/CdIn 2 S 4 integrating phosphorus-doped carbon nitride (PCN), cadmium sulfide (CdS), and indium cadmium sulfide (CdIn 2 S 4 ) was rationally designed via a multi-step assembly process. The optimized heterojunction exhibits outstanding performance, achieving remarkable H 2 and H 2 O 2 production rates of 7614 and 6873 μmol∙g −1 h −1 , respectively. Additionally, it demonstrates ultra-fast degradation kinetics, mineralizing 99.4% of methyl orange within just 30 min. Mechanistically, spontaneous interfacial band bending drives a dual Z-scheme charge transfer pathway. This specific energy band alignment effectively preserves strongly reducing electrons and highly oxidizing holes while significantly suppressing charge carrier recombination. Furthermore, radical trapping confirms that superoxide radicals (∙O 2 − ) are the pivotal active species, driving a two-step single-electron reduction pathway (O 2 →∙O 2- →H 2 O 2 ) for continuous H 2 O 2 generation, and coupling synergistically with localized holes for rapid organic pollutant decomposition.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Yubo Wu,Xiaoxu Deng,Ruirui Cui,Meiyang Song,Xiang Guo,Xingyong Gong,Jie He,Peng Chen
Vacancies engineering has sparked a huge interest in enhancing photocatalytic activity, but monovacancy simultaneously conducts as either electron or hole acceptor and redox reaction, worsening charge transfer and catalytic performance. Here, the concept of electronic inversion has been proposed through the simultaneous introduction of surface oxygen and S vacancies in CdIn 2 S 4 (OS v -CIS). Consequently, under mild conditions, the well-designed OS v -CIS-200 demonstrated a strong rate of N -benzylidenebenzylamine production (2972.07 µmol g -1 h - 1 ) coupled with Hydrogen peroxide (H 2 O 2 ) synthesis (2362.33 µmol g -1 h - 1 ) (PIH), which is 12.4 times higher than that of CdIn 2 S 4 . Density functional theory (DFT) simulation and characterization studies demonstrate that oxygen is introduced into the lattice on the surface of the material, reversing the charge distribution of the S vacancy and enhancing the polarity of the total charge distribution. It not only provides a huge built-in electric field (BEF) for guiding the orientation of the charge transfer, but also acts as a long-distance active site to accelerate reaction and prevent H 2 O 2 decomposition. Our work offers a straightforward connection between the atomic defect and intrinsic properties for designing high-efficiency materials.
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高影响因子
ACS Applied Nano Materials
·
2026
·
IF 5.8
Yunpeng Gong,Lijiu Cao,Xu Ma,Yue Hu,Danrui Wei,Zongxing Yu,Haijiao Xie,Yufang Chen,Tao Jin
To develop a sensitive and fast-response sensor toward triethylamine (TEA), a CdIn2S4@ZnIn2S4 heterostructure with well-defined nanoscale interfacial features was constructed via a one-step hydrothermal method. The resulting composite exhibits an improved sensing performance compared with the individual components. At 120 °C and 50 ppm TEA, the sensor delivers a response value of 87, with a response ratio S(TEA):S(trimethylamine) of 21.3, and response/recovery times of 19 and 10 s (with the assistance of an external current), indicating high sensitivity and selective response toward TEA. The improved sensing behavior is associated with the heterostructure providing abundant interfacial contact and a suitable surface reaction environment. ESR results suggest the possible involvement of ·OH radicals in the surface reaction process, while molecular simulations provide supportive insights into the reaction pathway, indicating that hydrogen abstraction at the α-C–H site of TEA is thermodynamically feasible. Overall, this work highlights the role of nanoscale heterostructure construction in modulating surface reaction behavior and suggests a feasible strategy for the design of amine-sensitive gas sensors.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Kai Wei,Jiasheng Zhu,Lufang Fan,Weijie Zhang,Huarui Han,Changchang Ma,Kan Hu,Sheng Feng
Here, we constructed S-scheme CdIn 2 S 4 /MoO 3-x (CISMO) photothermal catalyst with interface Mo-S bond for efficient overall water splitting. As expected, hydrogen (H 2 ) and oxygen (O 2 ) evolution rates of the optimized CISMO reached 554.71 and 277.88 μmol·g −1 ·h −1 , respectively, far higher than that of CdIn 2 S 4 (71.78 and 34.45 μmol·g −1 ·h −1 ) and MoO 3-x (0 and 21.83 μmol·g −1 ·h −1 ). Mechanism analysis revealed that the photogenerated carrier transfer followed an S-scheme route. More importantly, the photocatalytic performance of CdIn 2 S 4 /MoO 3-x was highly relevant with the oxygen vacancies (Ovs) in pristine MoO 3-x . In S-rich environment, the Ovs could be imbedded by sulfur (S) for the formation of interface Mo-S bond during CISMO fabrication. Interface Mo-S bridge facilitated the photogenerated carriers transfer between CdIn 2 S 4 and MoO 3-x . Moreover, the metal-free localized surface plasmon resonance effect, originating from the residual Ovs in CdIn 2 S 4 /MoO 3-x , could further enhance the water splitting performance through photothermal conversion. This work shed light on controllable interface chemical bond formation in heterojunction photocatalysts to signally promote the photocatalytic performance.
研究领域:
光催化
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材料科学
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能量转换
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异质结工程
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可再生能源
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ChemCatChem
·
2025
·
IF 3.9
KunShan Ouyang,Mengyuan Qu,Liyan Xie,Zhishan Luo,Jianqin Chen,Jianhui Huang
CdIn 2 S 4 /In(OH) 3 heterojunctions were constructed via a scalable ultrasonic spray pyrolysis method combined with H 2 O 2 -enabled in situ etching, in order to address the issues of photocorrosion, scarce active sites, and rapid charge recombination observed in pristine CdIn 2 S 4 . The optimized heterojunction, achieved using 50 µL of H 2 O 2 , demonstrates a significantly enhanced H 2 evolution rate of 736 µmol g −1 h −1 , which is 12 times greater than that of pristine CdIn 2 S 4 , along with stable performance throughout three consecutive catalytic cycles. Structural and chemical analyses verify the formation of a closely integrated heterojunction interface, which facilitates improved charge separation and efficient electron transfer from CdIn 2 S 4 to In(OH) 3 , as further corroborated by electrochemical and photoluminescence studies. A possible mechanism for hydrogen evolution is also proposed. Graphical Constructing CdIn 2 S 4 /In(OH) 3 heterojunctions via in situ etching achieves a 12-fold enhancement in photocatalytic H 2 evolution with excellent stability, by enabling efficient electron transfer and charge separation.
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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纳米材料
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Guangyuan Chen,Qina Quan,Chenyang Lin,Shijian Zhou,Yan Kong
Tetracycline (TC), as a persistent and widely detected antibiotic pollutant, poses severe ecotoxicological risks and necessitates rapid and efficient degradation strategies. Here, we demonstrate a photocatalytic self-Fenton process in which H 2 O 2 produced via visible-light-driven oxygen reduction is directly activated by Fe species for the rapid degradation of TC. To enable efficient H 2 O 2 production, a ternary ZnIn 2 S 4 / CdIn 2 S 4 /MnIn 2 S 4 (denoted as ZC 0.3 M 0.05 ) heterojunction photocatalyst was rationally constructed via a one-pot hydrothermal method. Structural analyses reveal that the three sulfides form a tightly coupled, multi-interfacial nanoscale architecture that induces pronounced interfacial strain and charge polarisation. Consequently, ZC 0.3 M 0.05 delivers a high H 2 O 2 production rate of 4907.7 μmol g⁻ 1 h⁻ 1 , outperforming pristine ZnIn 2 S 4 , CdIn 2 S 4 and MnIn 2 S 4 by factors of 15.2, 10.7 and 13.6, respectively. Upon Fe addition, the in situ generated H 2 O 2 enabled rapid self-Fenton degradation of TC, achieving 91.9 % removal within 5 min, while maintaining high activity under simulated environmental conditions. Combined spectroscopic, electrochemical and theoretical analyses reveal that work-function-difference-driven and stepwise electron-transfer pathways (MnIn 2 S 4 → ZnIn 2 S 4 → CdIn 2 S 4 ) across multiple heterointerfaces facilitate efficient charge separation and O 2 -to-*O 2 ⁻ electron injection. This work establishes a materials framework for on-demand H 2 O 2 production and direct self-Fenton pollutant remediation, and offers general design principles for high-performance ternary metal sulfide heterojunctions.
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Molecular Catalysis
·
2025
·
IF 4.9
Wenhua Fu,Nan Li,Qian Dong,Gang Zhao,Shirui Zhang,Yi Wu,Kai Zhao,Jiangquan Ma
Photocatalytic production of hydrogen peroxide (H 2 O 2 ) and carbon dioxide (CO 2 ) reduction has been the hotspots in the field of chemical industry for a long time. CdIn 2 S 4 is widely used due to its excellent thermal stability and significant absorption in the visible light region. However, the low efficiency of photogenerated charge separation hinders its practical application. In this work, Z-scheme heterojunction ReS 2 /CdIn 2 S 4 was successfully synthesized by hydrothermal method and applied for the first time in photocatalytic production of H 2 O 2 and CO 2 reduction. The experimental results show that compared with pure CdIn 2 S 4 or pure ReS 2 , the photocatalytic performance of ReS 2 /CdIn 2 S 4 is greatly improved. When the loading amount of ReS 2 is 12 wt. % of CdIn 2 S 4 , it exhibits the optimal photocatalytic H 2 O 2 productivity of 361.8 μmol h -1 g -1 and the optimal yields of CO and CH 4 of 89.84 and 5.03 μmol h -1 g -1 respectively in pure water. The Z-scheme heterojunction of ReS 2 /CdIn 2 S 4 was determined by XPS and the band structure. In addition, two possible reaction pathways involving O 2 - and 1 O 2 were analyzed for the H 2 O 2 production by RS/CIS and the pathway of carbon dioxide reduction reaction can be speculated through in-situ DRIFTS.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Zhenzong Zhang,Yuxin Cao,Fenghao Zhang,Wenjie Li,Yuanling Li,Han Yu,Meiyang Wang,Hongbing Yu
A novel S-scheme photocatalytic heterojunction composite nanomaterial is developed by integrating zero-dimensional WO 3 quantum dots (WQDs) on two-dimensional ultrathin CdIn 2 S 4 (CIS) nanosheets with the aim of fostering carrier separation, enhancing the performance of carrier interface transport, minimizing carrier distance transport, and achieving effective photocatalytic CO 2 reduction. The composite photocatalyst WQDs/CdIn 2 S 4 (WCIS) allows for the efficient photocatalytic reduction of CO 2 to CO and CH 4 , as shown by product analysis and isotopic measurement. The photogenerated electrons in WQDs recombine with the holes in CIS nanosheets, and the left electrons in CIS have stronger CO 2 reduction abilities. The highest yields of CO and CH 4 achieved with the WCIS photocatalyst are 8.2 and 1.6 μmol g -1 h −1 ––2.6 and 8 times higher than those for CIS, respectively. Moreover, the S-scheme WCIS possesses a stable crystal structure and recycling ability. Finally, the S-scheme charge transfer path on the WCIS composite is proposed according to theoretical calculation, in-situ irradiated X-ray photoelectron spectroscopy, and electron paramagnetic resonance (ESR) analyses.
研究领域:
材料科学
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环境科学
·
化学工程
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高影响因子
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