CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yiwen Wu,Baolin Guo,Haiyan Li,Qing Yao
The red spectral band plays a crucial role in plant growth. Due to the significant absorption peaks of chlorophyll A and chlorophyll B in the red wavelength range of 640-660 nanometers, red photons can be effectively absorbed by these pigments, thereby promoting photosynthesis. In previous studies, we synthesized warm white LED lights for plants, but the spectral peak was near orange-yellow, so the effect on promoting photosynthesis was not significant. Since the traditional coating process usually requires high-temperature sintering, and commercial red phosphor powder CaAlSiN 3 : Eu sintered in an air atmosphere would be oxidized and thus reduce the luminous efficiency. Therefore, this work introduced a non-sintering coating strategy, using a curable epoxy-based slurry and spray coating technology to prepare phosphor films without the need for high-temperature treatment, thus avoiding the oxidation of commercial CaAlSiN 3 : Eu phosphor powder under high temperature. In this experiment, four spatial layouts of phosphor powders were prepared. It was found that the layered structure was superior to the mixed structure because it reduced the occurrence of reabsorption, supplemented the red spectral band, and retained the yellow-green emission. Under the excitation of a 30 W LED source, the surface temperature of all samples remained below 90 degrees Celsius, far lower than the thermal quenching temperature of the phosphor. Optical property analysis confirmed that this layered phosphor powder film not only enhanced the supplementary effect of the red spectrum, but also significantly improved the color reproduction index (Ra = 86.5, R9 = 93.5, R14 = 91.9). In the plant growth experiment, the average SPAD value of the lettuce samples irradiated with the optimized film was 40.0, which exceeded the natural light (26.0) and the previous experimental results (29.1), proving the practical application value of the proposed layered optical coating structure in promoting photosynthesis.
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Laser & Photonics Reviews
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2026
·
IF 9.7
Xiaobing Tang,Chengxi Zhang,Kai Zhang,Shuo Weng,Xuyan Liu,Qiang Li,Yijie Xia,Xuan Huang,Xueqing Xu,Fuqian Yang
Ultrasmall perovskite CsPbBr 3 quantum dots (QDs) with blue emission are promising materials for light-emitting diodes (LEDs). However, achieving room-temperature synthesis of blue-emitting CsPbBr 3 QDs with long-term stability remains a major challenge, hampering their real-world applications. Herein, we report a novel room-temperature strategy for synthesizing highly stable, blue-emitting CsPbBr 3 QDs, achieved with cross-linked network structures—marking a significant advancement over conventional approaches. Polymer (dimethyl siloxane dimethyl vinyl terminated (PDMS)) cross-linked by curing agent (dimethyl methyl hydrogen siloxane) offers networks that control the size of CsPbBr 3 QDs around 5 nm. The networks inhibit the fall-off of ligands from the QD surface, which restrains the agglomeration of QDs and mitigates thermal quenching of light emission. The CsPbBr 3 QDs with a photoluminescence quantum yield (PLQY) of 93% remain monodispersed in solution over 30 days. The QD-based films retain 95% of their initial PLQY after thermal treatment at 120°C. Blue-emitting CsPbBr 3 LEDs with an emission of 472 nm and a full-width at half-maximum (FWHM) of 23 nm exhibit a peak luminance of 4096 cd m −2 and an excellent operational half-lifetime ( T 50 ) over 38 h at 100 cd cm −2 , the longest-lifespan perovskite blue-quantum-dot LEDs reported to date.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Guo-Qin Zhang,Jiang-Long Chen,Yu-Ting Han,Zhi-Yuan Liu,Hong-Bin Luo,Xiao-Ming Ren
Light-responsive proton conductors represent an attractive research direction owing to their potential in intelligent devices and responsive sensing applications. Herein, we present a cooperative functionalization strategy to construct an MOF-based light-regulated proton-conducting material, MOF-808-AZOA-IL, by integrating azobenzene-4,4′-dicarboxylic acid (AZOA) and an ionic liquid (IL) into the MOF-808 framework. AZOA serves as a photoactive unit to endow light responsiveness, while the IL molecules form a continuous proton-conducting network, enhancing the concentration and mobility of protons. This synergy results in a proton-conduction on/off ratio up to ∼2000 of MOF-808-AZOA-IL, with excellent stability over repeated UV light on/off cycles. This work demonstrates that the incorporation of AZOA and IL synergistically enhances the light-regulated proton conduction of MOF-808, offering a reliable strategy for designing advanced stimuli-responsive proton-conductive systems.
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PubMed
高影响因子
PHYSICA B-CONDENSED MATTER
·
2026
·
IF 3.2
Xingyue Zhang,Zhixing Chen,Yiting Wang,Xi Wang,Sheng Li,Fei Mei,Yuanming Zhou
Perovskite light-emitting diodes (PeLEDs), characterized by their excellent optoelectronic properties, including high color purity, flexibly tunable emission wavelengths, and relatively high photoluminescent quantum yields, make them suitable for next-generation display technologies. This study investigates and demonstrates that PeLEDs using a PEDOT:PSS/LiF composite hole transport layer (HTL) can achieve enhanced device performance. When 1.0 mg mL −1 of LiF is added, the device attains a maximum luminance of 8317 cd m −2 and a maximum current efficiency of 8.09 cd A −1 , representing improvements of 163% and 92% respectively compared to the reference device. Analysis reveals that the introduction of LiF can optimize the morphology of the perovskite film and passivate defects within it. Additionally, it helps modulate the work function of PEDOT:PSS and enhance its electrical conductivity, thereby improving hole injection efficiency and further boosting the performance of the PeLEDs. The findings presented in this study can provide a reference for the optimization of PeLEDs.
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Nature Energy
·
2026
·
IF 70.1
Zhang Zuhong,Zhu Rui,Li Guixiang,Tang Ying,Wu Hongzhuo,Zhao Jinbo,Wu Jiaxin,Gries Thomas W.,Musiienko Artem,Zuo Shengnan,Li Zhe,He Bingchen,Su Zhenhuang,Gao Xingyu,Zuo Weiwei,Hou Bo,Pascual Jorge,Sapienza Luca,Wang Luyao,Deng Lin-Long,Jia Yu,Li Gang,Dyson Paul J.,Nazeeruddin Mohammad Khaja,Saliba Michael,Abate Antonio,Li Meng
Realizing stable and scalable perovskite solar cells (PSCs) under real-world outdoor conditions remains a challenge for deployment. Here we report a strategy to improve the resilience of the grain boundary, achieving simultaneous improvement in the power conversion efficiency and long-term operational durability under realistic light cycling and ultraviolet exposure of PSCs. By integrating photoswitchable isomers at grain boundaries, we suppress lattice bond rupture and defect accumulation during repeated light cycling through light-triggered dynamic damage release. This approach stabilizes the triple-cation lead-based perovskite lattice against photoinduced distortions and degradation pathways. As a result, the PSCs retain over 95% of their initial performance after 2,000 h of ultraviolet-containing light cycling at 65 °C and 500 thermal cycles between –40 °C and 85 °C, and deliver a power conversion efficiency of 27.2% (certified as 26.9%). Our strategy improves the operational stability and commercial viability of triple-cation perovskite photovoltaics.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yanrong Zhu,Hanlin Hu,Haizhe Zhong,Yumeng Shi
Conventional white light-emitting diodes often suffer from low color rendering index and high correlated color temperature due to the lack of red emission. Here, we report novel rare-earth-free Cs 2 CdCl 4 : Sb 3+ , Mn 2+ phosphors synthesized via a cost-effective co-precipitation route. The dual-emission behavior arises from Sb 3+ -related self-trapped excitons (green) and the characteristic 4 T 1 (G)→ 6 A 1 (S) transition of Mn 2+ (orange). Spectroscopic and time-resolved studies reveal an efficient Sb 3+ →Mn 2+ energy transfer process, governed by a dipole-quadrupole interaction. By adjusting Mn 2+ concentration, tunable emission spanning green to orange is achieved, enabling single-component white light generation. In addition, the strong concentration and excitation-dependent emission characteristics suggest potential applications in areas such as multidimensional information encryption and optical anti-counterfeiting. This work provides a low-cost, rare-earth-free strategy for designing multifunctional phosphors for high-quality lighting and security technologies.
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ACS Catalysis
·
2026
·
IF 13.1
Jiejie Ling,Jilong Wang,Yao Xiao,Yan Gao,Xudong Tian,Jie Tuo,Chuang Liu,Dunru Zhu,Jingang Jiang,Shipeng Ding,Jian Li,Zhendong Wang,Anmin Zheng,Peng Wu,Le Xu
The conversion of CO2 to hydrocarbons via the methanol-mediated pathway represents a crucial route for carbon neutrality, yet preferable production of more value-added light olefins remains constrained by the fundamental activity-selectivity trade-off in zeolite catalysts. While previous studies established an acidity regulation mechanism based on balancing acid density with acid strength, the conversion of methanol intermediates is also critically governed by their intracrystalline diffusion, which can be severely hindered by structural defects particularly prevalent in highly siliceous zeolites. This work demonstrates a different approach that synergistically integrates zeolite acidity and defect engineering. A hydrothermal synthesis strategy with a selected inorganic source precisely controls aluminum incorporation into the highly siliceous CHA zeolite framework (Si/Al > 800). Subsequently, a postsynthetic fluorination followed by calcination effectively heals silanol defects. The resulting HS-CHA-F zeolite features a hydrophobic framework that facilitates rapid methanol diffusion while utilizing precisely tuned ultraweak acidity to steer selective C–C coupling. The optimized OXZEO bifunctional catalyst ZnZrOx/HS-CHA-F achieves 38.5% CO2 conversion and 91.3% light olefin selectivity in hydrocarbons at 653 K and 4 MPa, substantially outperforming conventional SSZ-13 and SAPO-34 benchmarks. This study establishes a generalizable method for overcoming long-standing limitations in CO2 hydrogenation through coupled zeolite acidity and defect engineering.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2026
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IF 16.8
Bojian Yang,Xianpengcheng Si,Xi Cheng,Zhiqiang Li,Rasha A. Awni,Deng-Bing Li,Liang Li
Light soaking (LS) is widely employed to optimize CdTe-based solar cells, yet its microscopic origin remains controversial due to the entangled roles of illumination and thermal activation. Here, we establish a decoupled experimental strategy that independently disentangles light exposure and heating, revealing their fundamentally distinct and competing effects on defect dynamics in CdSeTe solar cells. Illumination alone induces a backward drift of Cu Cd − acceptors under the light-enhanced built-in field, reducing apparent hole density and suppressing open-circuit voltage. In contrast, thermal activation promotes Cu redistribution toward the front junction and eliminates V Cd 2 − deep recombination centers, partially restoring device performance. Remarkably, when illumination and heating are simultaneously applied, a synergistic process emerges, combining enhanced carrier density, suppressed deep-level traps, and the restoration of selenium-induced passivation. This cooperative defect reconfiguration simultaneously elevates open-circuit voltage and fill factor, yielding a champion efficiency of 19.5%. Our results establish a physical framework for light soaking in CdSeTe photovoltaics and highlight defect–passivation coupling as a key lever for post-fabrication performance optimization.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121501
·
IF 7.2
Xiaoqian Ma,Han Zhang,Yi Zhao,Shuai Ma,Xiaoli Bai,Yuanchun Zhang,Daomei Chen,Jiaqiang Wang
Self-cycled photo-Fenton system, which integrates photocatalysis with Fenton technology, is investigated thoroughly in wastewater treatment due to the virtues of no addition of H 2 O 2 and accelerated circulation of Fe 2 + /Fe 3+ . Here we report an enhanced sulfur vacancy modified α-MnS/Ni 3 S 2 on nickel foam(NF), the simple hydrothermal successfully fabricated the magnetic floriform α-MnS/Ni 3 S 2-x /NF rich in sulfur defects. α-MnS enhanced the sulfur vacancy and further improved the hydrogen peroxide production performance of floriform Ni 3 S 2 . Without the external addition of both H 2 O 2 and Fenton-like metal ions, α-MnS/Ni 3 S 2-x /NF floriform exhibited an extremely high H 2 O 2 production rate of 51.6 mM·h −1 ·g −1 under visible light irradiation, which is the highest than those reported photocatalysis self-Fenton system in the literature. Interestingly, the self-cycled photo-Fenton strategy can be applied to the reduction of Cr(VI) and oxidative degradation of oxytetracycline hydrochloride(OTC), and the corresponding degradation and reduction rates all reach up to 98 %. The wide-spectrum light harvesting, photothermal effect and solar-driven photocatalysis in the α-MnS/Ni 3 S 2-x /NF are beneficial for the synergistically enhanced thermal-assisted photodegradation toward wastewater with a water evaporation rate of 2.01 kg·m −2 ·h −1 . Furthermore, a series of experiments and calculations were carried out to verify the photocatalytic mechanism. Density function theory (DFT) calculation shows that the formation of sulfur defects increases the number of active sites, decreases the energy barrier, and improves the activity and selectivity. In addition, α-MnS/Ni 3 S 2-x /NF floriform also exhibited good performance in real wastewater containing fluoronitrobenzene from a factory. Our findings may help the development of novel functional nanostructures for applications in environmental remediation and solar steam generation.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Mingmin Jia,Wenhao Cao,Qiuxia Chen,Zhiyi Xia,Shuo Shi,Mingzhi Zheng,Hengyang Mao,Meisheng Li,Yijiang Zhao,Dingliang Dai,Jianhao Qiu
In this study, a g-C 3 N 4 /MoS 2 composite membrane was successfully fabricated via electrostatic interactions and vacuum-assisted self-assembly. The established heterojunction markedly enhanced charge separation, yielding superior visible-light photocatalytic activity with 95.5% methylene blue degradation in 150 min. The membrane also demonstrated efficient dye separation (70.8% rejection for carmine red; 66.7% for malachite green) and notable antifouling properties, achieving a 74.9% flux recovery after visible-light cleaning. This work presents a synergistic strategy for simultaneous photocatalytic degradation and membrane separation in advanced water treatment.
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SURFACE & COATINGS TECHNOLOGY
·
2026
·
IF 6.1
Jiayin Ji,Huidong Cai,Xiang Li,Chen Zuo,Shuyu Yuan,Qingge Feng,Jingcheng Zhao
Antimicrobial coatings with self-cleaning and long-lasting antibacterial properties are critical for medical applications to reduce healthcare-associated infections. However, existing coatings pose challenges of poor durability, limited light response, or rapid antibacterial agent loss. Herein, we report a scalable strategy to fabricate a Cu 2 O/TiO 2 composite coating (CT-37, Cu:Ti = 3:7 mass ratio) via in-situ chemical reduction and two-step semi-curing spraying, integrating hierarchical micro-nanostructured Cu₂O/TiO₂ particles with lithium polysilicate adhesive. CT-37 exhibits good superhydrophobicity (contact angle ( θ CA ) = 151.3 ± 1.4°, roll-off angle ( θ RA ) =3.4 ± 0.4°), retaining a θ CA > 150° after 10 abrasion cycles and 7 days of acid/alkali immersion. Under visible light, it achieves >99% sterilization efficiency against Escherichia coli and Staphylococcus aureus , and maintains a > 90% bactericidal rate after 50 cycles. This study reveals a novel synergistic mechanism: (i) superhydrophobicity reduces bacterial adhesion by minimizing solid-liquid contact area; (ii) rapid Cu ion release from the coating matrix directly inhibits bacterial proliferation; (iii) photocatalytic generation of reactive oxygen species (ROS, including •O 2 − , h + , and •OH) under visible light further eradicates adhered microbes. This cost-effective coating, coupled with the deepening understanding of its antimicrobial mechanism, paves the way for large-scale medical and public health applications.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2017
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IF 9.446
Qun-Zeng Huang,Yan Xiong,Qian Zhang,Hong-Chang Yao,Zhong-Jun Li
Development of noble metal-free and highly efficient co-catalyst that endows semiconductor materials with high performance is of great significance towards enhancing photocatalytic H 2 evolution. Herein, a series of novel Mn 0.25 Cd 0.75 S/MoS 2 composites have been successfully prepared by a facile one-step hydrothermal method . The photocatalytic activity of the as-prepared photocatalysts for H 2 production from water splitting under visible-light irradiation (λ ≥ 400 nm) was investigated. The results showed that Mn 0.25 Cd 0.75 S/MoS 2 heterostructured composites have a higher photocatalytic activity than Mn 0.25 Cd 0.75 S, implying that the intimate interfacial contact between Mn 0.25 Cd 0.75 S and MoS 2 facilitates electron transfer from Mn 0.25 Cd 0.75 S to MoS 2 , thus promoting the separation of photogenerated charge carriers and providing more active sites for H 2 evolution reaction. The introduction of noble metal-free MoS 2 co-catalyst led to a remarkable improvement in the photocatalytic H 2 evolution activity of Mn 0.25 Cd 0.75 S, and the content of MoS 2 in composite had an important influence on the photocatalytic activity. It was confirmed that 0.7 wt% of MoS 2 loading content achieves a maximum photocatalytic H 2 evolution rate of 12.47 mmol g −1 h −1 , which was much higher than that of Mn 0.25 Cd 0.75 S and also slightly higher than that of Mn 0.25 Cd 0.75 S/Pt (1.0 wt%). This work revealed that low cost MoS 2 could replace noble metal Pt as a highly efficient co-catalyst in enhancing the photocatalytic activity of semiconductor materials.
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