JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Yuqian Zheng,Ziwang Zhang,Zhuo Li,Deqiang Liu,Huaiyu Wu,Junhui Liang,Enxi Song,Jianxin Shi,Jing Wang
Single-host white light-emitting phosphors have been one of the research hotspots in the field of white light-emitting diodes (WLEDs) in recent years. Herein, white light emission is realized in Sr 8 ZnSc(PO 4 ) 7 :Eu 2+ phosphor by using the defect engineering strategy, i.e. the heterovalent substitution of Sc 3+ with Hf 4+ . Based on the charge compensation mechanism of the substitution, electron paramagnetic resonance (EPR) analysis confirms a positive correlation between cation vacancy concentration and dopant content. Photoluminescence spectra indicates that there are two different emissions at 408 and 520 nm in the phosphor. Under 335 nm excitation, the SZSP:0.02Eu 2+ ,0.03Hf 4+ exhibits cold white light emission with CIE coordinates (0.2992, 0.3214) and an enhanced color rendering index (Ra = 80.02), showing superior performance compared to commercial YAG:Ce 3+ phosphor. This work not only elucidates the critical role of Hf 4+ dopants in defect engineering but also establishes a novel material for developing high-efficiency phosphors with tunable color temperature for WLED applications.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Zhipeng Liu,Wei Cui,Zhe Liu,Shicheng Zhao
The photostability of Ethylene-vinyl Acetate copolymer (EVA) photovoltaic encapsulation films is highly dependent on the Hindered Amine Light Stabilizer (HALS) used. However, the extensive screening of HALS via long-time aging tests is time-consuming and high-cost, hindering the design of EVA photovoltaic films with higher stability. In this paper, an efficient screening strategy for selecting optimal HALS for EVA was proposed based on molecular simulation and validated via long-time aging experiments. Firstly, several molecular simulations were performed to analyze three critical parameters: chemical activity, migration resistance, and compatibility with the EVA matrix of six HALS. The simulation results identified HALS-4 exhibiting optimal characteristics including high radical scavenging activity, superior migration resistance, and complete compatibility with EVA, suggesting its potential as an optimal HALS. Subsequently, it was found by long-term aging experiment combined with Fourier-Transform Infrared Spectroscopy and rheological analyses that EVA films undergo severe photo-degradation without HALS, while the incorporation of HALS delayed aging. Importantly, the anti-aging performance varied markedly among different HALS types, with HALS-4 exhibiting superior stabilization effects. Finally, based on the analysis of the experimental and molecular simulation results, it can be concluded that the computational predictions showed excellent agreement with experimental results of HALS-4′s outstanding anti-aging performance, thereby validating the rationality of the proposed screening strategy. The strategy presented in this work offers theoretical guidance for the development of high-performance HALS and provides an efficient tool for the design of EVA photovoltaic encapsulation films with higher photostability.
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高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Suhaib Shuaib Adam Shuaib,Yulu Xu,Mengdie Cai,Hao Li,Guo Jiayu,Jun Zhang,Fang Chen,Song Sun
The strong interfacial interaction between heterostructured semiconductors plays a vital role in enhancing the separation and transport efficiency of photogenerated charge carriers for photocatalytic applications. In this study, we report a stepwise synthesis strategy to fabricate a high-efficiency ternary heterojunction composed of NiS-decorated MoS₂/CdS with strong interfacial bonding (NS@SI-MCS). Initially, an amorphous MoSₓ layer was deposited onto CdS nanorods via chemical bath deposition, followed by thermal treatment in a reductive H₂/Ar atmosphere to form crystalline MoS₂ with strong interfacial coupling. This treatment not only improved the crystallinity of MoS₂ but also introduced sulfur vacancies, promoting enhanced interfacial contact and thereby strengthening electronic interactions and charge transport across the heterojunction. Subsequently, NiS nanoparticles were deposited as cocatalysts to facilitate efficient electron extraction and proton reduction. Comprehensive structural, optical, and electrochemical characterizations confirmed the formation of a well-integrated heterostructure, characterized by improved light absorption, suppressed charge recombination, and enhanced conductivity. The resulting NS@SI-MCS composite exhibited a remarkable hydrogen evolution rate of 5243 μmol h⁻¹g⁻¹ under visible light, approximately 16.6 times higher than pristine CdS. This enhancement is attributed to the synergistic effects of strong interfacial coupling of MoS₂/CdS and the catalytic contribution of NiS. This work provides valuable insight into designing strongly coupled heterojunctions and offers a scalable, noble-metal-free strategy for efficient solar-to-hydrogen conversion.
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高影响因子
ACS Applied Bio Materials
·
2026
·
IF 5.6
Hai Ren,Ziran Yu,Jian Cheng,Yukai Wang,Xiaoyu Sun,Cheng Wang,Shikuo Li
Photodynamic therapy has attracted significant attention in treating serious bacterial skin infections. Herein, the carbon dots@Cu Tetrakis (4-carboxyphenyl) porphyrin microneedle arrays (CDs@CuTCPP MNs) were prepared by using a 3D printing technology for efficient photodynamic therapy of deep bacterial infected wounds. The CDs decorated on CuTCPP nanosheets facilitated the spatial charge separation for reactive oxygen species generation under irradiation. The CDs as a nanozyme could help to alleviate the local oxidative stress once they power off the light. Importantly, the release of ROS from the microneedle (length about 800 μm) to the deeply infected sites for damaging the bacteria can be achieved in a short time by the dissolution of the hyaluronic acid. As expected, the typical CDs@CuTCPP MNs achieved an average antibacterial rate of more than 95% against Staphylococcus aureus and Escherichia coli under visible-light irradiation (λ ≥ 420 nm). Moreover, during the wound healing evaluation test, the microneedle arrays achieved a remarkably high wound closure rate of 96.8%. The antibacterial mechanism of the CDs@CuTCPP MNs was investigated through reactive oxygen capture experiments, electrochemical characterization, and density functional theory calculations. This work offers a viable, visible light-driven approach for the treatment of deep-seated bacterial infections, highlighting the synergy between charge-decoupling photosensitizers and microneedle-assisted delivery.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Zhenfeng Li,Yifan Zhao,Zixu Wang,Jinyang Li,Chenglong Zhou,Peng He,Shuye Zhang
Oxidation susceptibility and insufficient service reliability remain major limitations for Cu-based conductive inks in flexible electronics. Here, size-tunable Cu@Ag core-shell nanoparticles were processed by millisecond intense pulsed light (IPL) sintering to establish a rapid route toward conductive and durable flexible electrodes. Comparative finite-element thermal analysis and electrical measurements establish a practical IPL processing window, while electron microscopy and complementary diffraction analysis support energy-dependent interparticle connection and localized Cu-Ag interfacial reconstruction without assuming homogeneous alloying throughout the film. The sheet resistance reaches a minimum of 0.06 Ω/sq at 5.0 J/cm2, whereas 4.5 J/cm2 is selected as the practical baseline because it provides a more favorable balance among conductivity, film integrity, environmental stability, flexibility, adhesion, and limited cumulative substrate heating. Films processed within this window maintain low resistance during damp-heat and cryogenic exposure and exhibit stable electrical behavior during repeated bending. At the device level, the 4.5 J/cm2 electrode enables a contact-separation triboelectric nanogenerators (TENG) with an open-circuit voltage of 275.45 V and a peak power density of 0.71 W/m2. In otherwise identical alternating-current electroluminescent (ACEL) devices, increasing the electrode-processing energy from 1.5 to 4.5 J/cm2 markedly increases luminance, directly linking the IPL-defined electrode state to device performance. The integrated patterned platform further enables tactile-position visual feedback. These results establish an evidence-based processing-thermal response-structure-reliability-device relationship for IPL-sintered Cu@Ag NPs flexible electrodes.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Xinyi Shan,Weiyi Ju,Qingyao Wang,Qian Zhu,Jiarui Chen,Na Liu,Chenchen Jia,Ran Geng,Junjie Qi,Shengwen Liao
Addressing the escalating contamination of aquatic ecosystems by industrial dyes and heavy metals such as Cr(VI), this study presents a novel TiO 2 NTs/Cu 2 O-CuO hybrid photoelectrocatalytic system. By integrating anodic oxidation with a controlled hydrothermal process, Cu 2 O-CuO dual-phase heterojunctions were successfully anchored onto TiO 2 nanotube arrays, establishing a cascade-like band alignment for efficient charge carrier separation. The characterization confirms that the energy band structure-comprising TiO 2 NTs (3.08 eV), Cu 2 O (2.11 eV), and CuO (1.77 eV)-significantly extends visible-light absorption and suppresses the recombination of photogenerated electron-hole pairs. Under combined visible-light irradiation and external bias, the system exhibits superior photoelectrocatalytic performance, achieving removal efficiencies of 96.92% for Congo red (CR), 74.87% for methylene blue (MB), and 93.64% for Cr(VI). Mechanistic insights reveal that the mineralization of pollutants is dominated by a synergistic pathway involving direct hole (h + ) oxidation and superoxide radicals (•O 2 − ) derived from O 2 reduction. Furthermore, an ecological toxicity assessment using Vigna angularis seedlings demonstrates that this photoelectrocatalytic process effectively detoxifies treated wastewater, promoting plant growth and restoring ecological safety. This work provides both a robust design principle for high-performance heterojunction photoanodes and a critical framework for evaluating the real-world environmental safety of water purification technologies.
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高影响因子
JOM
·
2026
·
IF 2.3
Zhang Shizhong,Sun Tongming,Ge Ming,Ni Lingli,Bi Lingling,Ali Nisar,Xu Weichuan
Pseudobrookite-type Fe 2 TiO 5 semiconductor nanoparticles were systematically synthesized via a co-precipitation method for the photodegradation of organic pollutants. The dual-level optimization from nanomaterial fabrication to reaction environment tuning enables a rational understanding of the factors governing photocatalytic efficiency. Optimal synthesis conditions were achieved using a 20% excess of Ti 4+ , a pH of 8, one-time ammonia addition, and calcination at 800°C for 6 h. The photocatalyst achieved 99.4% degradation efficiency for methylene blue (MB) under visible light with a 75-mg catalyst dosage, a 10-mg/L MB solution, at pH 6, and the addition of 7 mL H 2 O 2 . The photogenerated electron–hole pairs reacted with surface species to produce ·O 2 − and ·OH that degrade MB molecules oxidatively. The catalyst exhibited versatility and excellent recyclability, maintaining high activity over four consecutive cycles with only a minor decrease in efficiency. This study establishes the optimal synthesis parameters and reaction conditions for Fe 2 TiO 5 nanoparticles in visible-light photocatalysis.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yangyang Shi,Huiwen Lin,Haoyuan Xu,Rui Yang,Li Tao,Yichen Liu,Biao Xu,Beibei Zhu
Multiphase interface engineering provides an effective strategy for regulating interfacial charge transfer and improving light-driven catalytic energy conversion. Here, Te-incorporated Bi 4 O 4 SeCl 2 hybrid ceramics containing retained BiOCl and β-Bi 2 O 3 phases together with Te-induced conductive Bi 2 Te 3 nanophases are constructed to generate abundant coherent and semi-coherent interfaces. These multiphase interfaces effectively reconstruct the electronic structure and microstructure of the Bi 4 O 4 SeCl 2 matrix, leading to optimized carrier transport pathways, broadened visible–NIR absorption, and improved interfacial charge separation. The optimized composite exhibits enhanced electrical transport while maintaining low thermal conductivity due to intensified phonon scattering at heterogeneous interfaces. Density functional theory calculations reveal pronounced work-function-driven electron transfer at the Bi 4 O 4 SeCl 2 /BiOCl interface, whereas the Bi 4 O 4 SeCl 2 /Bi 2 Te 3 junction forms a quasi-ohmic contact that facilitates rapid electron exchange. Electrochemical impedance spectroscopy and electron paramagnetic resonance measurements further demonstrate reduced charge-transfer resistance and regulated oxygen-vacancy-associated defect states at the optimized composition. Under illumination, the engineered interfaces promote efficient separation and migration of photogenerated carriers. Consequently, the optimized hybrid catalyst achieves a hydrogen evolution rate of 85.74 μmol g −1 h −1 , representing a 287% enhancement compared with pristine BiOSeCl–0Te. These results establish multiphase interface engineering as an effective route for regulating interfacial charge-transfer pathways and light-driven hydrogen evolution in layered bismuth-based materials. Download: Download high-res image (508KB) Download: Download full-size image
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高影响因子
APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Linke Zhao,Yang Li,Lili Li,Gongke Wang,Hairui Liu,Hongjing Li,Arif Nawaz,Haifa Zhai
A Z-scheme CIS/rGO/p-CN heterostructure was designed. • CIS/rGO/p-CN exhibits the highest visible-light activity for Cr(VI) photoreduction. • rGO serves as the solid-state electron mediator to switch the charge transfer mode. Hexavalent chromium (Cr (VI)), a highly toxic metal ion readily soluble in aqueous environments, poses significant threats to human health. Herein, a novel Z-scheme CuInS 2 /rGO/protonated g-C 3 N 4 heterostructure was designed with rGO serving as the solid-state electron mediator between CuInS 2 and protonated C 3 N 4 . The samples were systematically characterized using XRD, FTIR, SEM, TEM, XPS, PL, and UV–vis spectroscopy techniques. This flower-like hierarchical structure CuInS 2 /rGO/protonated g-C 3 N 4 exhibits enhanced visible-light photocatalytic activity for Cr (VI) photoreduction. Specifically, it demonstrates a 98% reductive efficiency for Cr (VI) within 20 min at pH= 4 and stable photocatalytic performance. The results indicate that the integration of rGO nanosheets significantly enhances the photocatalytic performance of the CuInS 2 /rGO/protonated g-C 3 N 4 heterostructure by weakening the built-in electric field between CuInS 2 and protonated C 3 N 4 and switching the charge transfer mode from a conventional p-n junction to a Z-scheme mechanism. Download: Download high-res image (103KB) Download: Download full-size image
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2026
·
IF 4.4
Jing Yang,Guangyu Huang,Hengtong Xia,Wenzhong Yang
Co complex [(tpy-NH 2 ) 2 Co]Cl 2 was synthesized for the first time. • CdTeS QDs and Co-1 loading conditions maximize photocathode performance. • The photocathode achieves 82 μA cm −2 photocurrent density and sustains over 3 h. • The photocathode produces 2.9 μmol H₂ with a Faradaic efficiency of 92.5%. The initial construction of a photocathode utilized CdTeS quantum dots (QDs), leveraging their remarkable photoelectric efficiency and photostability. The Co-1-CdTeS-NiO photocathode was fabricated by depositing a porous mesh NiO film on conductive glass as the substrate, preparing CdTeS QDs via the hydrothermal method, and loading them onto the NiO film surface. A non-precious metal [(tpy-NH₂)₂Co]Cl₂ complex was synthesized to replace the precious metal Pt as a hydrogen evolution co-catalyst. When subjected to visible light irradiation with an applied bias voltage of −0.1 V (vs. NHE), the photocurrent density reached 82 μA cm −2 and remained stable at 80 μA cm −2 over a 3 h stability test. Simultaneously, the photocathode generated 1.8 μmol of hydrogen gas, achieving a Faraday efficiency of 92.5%, thereby showcasing its highly efficient photocatalytic capabilities. Download: Download high-res image (130KB) Download: Download full-size image
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高影响因子
RARE METALS
·
2026
·Vol. 45
·期 4
·e70203
·
IF 12.1
Haifeng Tian,Haowei Huang,Zhiyu Chen,Fei Zha,Hongshan Chen,Ruiying Ding,Yu Zhang,Hao Wei,Yuzhong Mao,Irshad Hussain,Zhicheng Zhang
en Thermally driven hydrogenation of CO 2 to light olefins (C 2 = –C 4 = ) using metal oxide-zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid-site inactivation, and surface carbon poisoning. To address these issues, we replaced conventional zeolites with La-modified ZIF-8 and combined it with hollow cubic In 2 O 3 to develop a novel In 2 O 3 -La-ZIF-8 tandem catalyst. Our study investigates the effects of the hydrothermal reaction temperature used for synthesizing In 2 O 3 and the La content in ZIF-8 on catalytic performance. We also found that the oxygen vacancy (O V ) concentration in In 2 O 3 can be substantially regulated by adjusting the hydrothermal temperature. The In 2 O 3 sample with the highest O V concentration not only promotes the formation of reaction intermediates but also markedly reduces the energy barrier of the rate-determining step in methanol synthesis. Comprehensive characterization and simulation analyses indicate that La incorporation enhances the thermal stability of ZIF-8, improves its ability to adsorb and activate reaction intermediates, and effectively adjusts its acid-base properties. Under a reaction pressure of 3.0 MPa and a temperature of 360°C, the hollow cubic In 2 O 3 -La-ZIF-8 tandem catalyst achieves 23.5% CO 2 conversion with 65.3% C 2 = –C 4 = selectivity. 摘要 zh 利用金属氧化物-分子筛串联催化剂 , 通过热驱动将CO 2 转化为低碳烯烃(C 2 = –C 4 = ) , 是实现碳中和的有效策略。然而 , 该领域的发展受到分子筛孔道传质限制、酸性位点失活及表面积碳等问题的制约。为解决这些难题 , 本研究以La修饰的ZIF-8替代传统分子筛 , 并将其与空心立方体In 2 O 3 相结合 , 开发了一种新型的In 2 O 3 -La-ZIF-8串联催化剂。系统探究了In 2 O 3 水热合成温度以及ZIF-8中La含量对催化剂性能的影响。通过调节水热温度可显著调控In 2 O 3 中的氧空位浓度 , 具有最高氧空位浓度的In 2 O 3 样品不仅能促进反应中间体的生成 , 还可显著降低甲醇合成过程中决速步骤的能垒。综合表征与模拟分析表明 , La的引入增强了ZIF-8的热稳定性 , 提升了其对反应中间体的吸附与活化能力 , 并有效调节了其酸碱性质。在3.0 MPa、360°C的反应条件下 , 空心立方In 2 O 3 -La-ZIF-8串联催化剂上实现了23.5%的CO 2 转化率与65.3%的低碳烯烃选择性。
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 9
·1430
·
IF 5.1
Weitao Li,Zeyun Dong,Zhengyu Zhang,Luoman Zhang,Qizhe Wang,Shang Li,Shuai Li,Lei Wang,Jialin Liu
Industrial dye wastewater poses serious environmental and health risks, demanding sustainable remediation strategies. Here, hierarchically porous hollow TiO2nanofibers (HNFTis) were fabricated and combined with blue, green, and orange graphene quantum dots (b-GQDs, g-GQDs, o-GQDs) to form heterojunction photocatalysts. Progressive fluorescence redshift of GQDs, induced by surface functionalization and S/B doping, narrows the bandgap and enhances visible-light absorption. Among the composites, 0.5 wt% o-GQDs/HNFTi exhibited the highest photocurrent and lowest charge-transfer resistance and degraded 99.5% of Methylene blue under visible light within 2 h, outperforming pristine HNFTi (77.7%). The synergistic effect of TiO2structural engineering and GQD fluorescence tuning demonstrates an effective strategy for designing high-performance photocatalysts for sustainable wastewater treatment.
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PubMed
高影响因子
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