Small
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2026
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IF 11.8
Wentian Zhang,Shen Zhang,Qian Yang,Yuheng Gu,Ahrong Jeong,Long Zhang,Shun Li,Jianming Zhang,Yuqiao Zhang
Real-time, high-precision underwater monitoring and optical communication are critical for marine resource exploration yet remain hindered by the lack of photodetectors capable of stable, autonomous operation in harsh seawater environments. Herein, we report a robust, self-powered photoelectrochemical (PEC) deep-ultraviolet (DUV) photodetector based on an epitaxial La-doped SrSnO 3 (LSSO)/SrRuO 3 (SRO) architecture. The single-crystalline epitaxial LSSO film and the high-quality LSSO/SRO interface suppress defect-induced recombination and enable efficient separation and transport of photogenerated carriers. Through systematic optimization of La-doping concentration and operating bias, the device achieves a remarkable peak responsivity of 459.84 mA W −1 in natural seawater, alongside rapid response speeds (rise/fall times of 2.98/2.22 ms). The device shows excellent long-term stability in natural seawater during PEC operation, with the photoactive surface directly exposed to the electrolyte. Specifically, the photocurrent remains nearly unchanged after 100 days of ambient storage and 30 days of immersion in natural seawater, retaining over 90% of its initial value after 2000 s of continuous cycling. This work demonstrates that epitaxial oxide thin films can effectively bridge the gap between high-performance optoelectronics and harsh-environment adaptability, paving the way for next-generation deep-sea exploration technologies.
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CELLULOSE
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2026
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IF 4.6
Shi Qiu,Li Gang,Qin Hongmei,Shi Zhuqun,Xiong Chuanxi,Yang Quanling
Traditional cellulose films lack both effective UV-shielding and durable flame-retardant properties, limiting their use in transparent packaging and protective. In this study, a highly transparent, UV-shielding, and flame-retardant cellulose composite film was fabricated via a solvent-exchange route. Water-insoluble triphenyl phosphate (TPP) flame retardant was diffused through ethanol into regenerated cellulose (RC) gel prepared by NaOH/urea/H 2 O low temperature dissolving system, followed by post-treatment with 3-aminopropyltriethoxysilane (KH550) ethanol solution to improve the compatibility between TPP and RC and drying. The obtained PNSi-RC films exhibit visible-light transmittance exceeding 85% and demonstrate improvement in UV shielding capability. Moreover, the PNSi 7 -RC film achieved a limiting oxygen index (LOI) of 29 and a UL-94 V-0 rating, exhibiting good flame-retardant property. The films remained largely consistent flame-retardant performance after water exposure for 24 h, and the LOI values were almost no changes. This simple strategy can be scalable to the preparation process of other films for green flame-retardant packaging and protective.
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Journal of Materials Chemistry C
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2026
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IF 5.1
Jinling Luo,Caiyun Wu,Changwei Tan,Ling Bai,Xinzhou Wu
Electrochromic devices (ECDs) hold significant promise for applications in smart windows and flexible displays due to their tunable optical properties and low energy consumption. The electrolyte, serving as the critical ionic transport medium between the working and counter electrodes, fundamentally governs device stability, response kinetics, and operational lifetime. Herein, we report novel UV-crosslinked solid-state poly(methyl methacrylate) (PMMA) electrolytes. The amorphous structure of PMMA enables the electrolyte to achieve relatively high ionic conductivity and excellent optical transparency, which, when combined with the mechanically robust three-dimensional network of PEGDA, further amplifies PMMA's advantages. This rationally designed electrolyte architecture achieves a remarkable combination of high ionic conductivity (0.045 mS cm-1), wide electrochemical stability window (2 V), exceptional optical transparency (transmittance >90%), and superior mechanical flexibility, and effectively addresses the film-forming challenges and interfacial instability issues associated with conventional polymer electrolytes. The fabricated ECDs (2 × 2 cm2) exhibit high optical contrast (ΔT = 39%), rapid response times (coloring/bleaching times of 0.5 s/0.6 s), high coloration efficiency (2200 cm2 C-1), and exceptional cycling stability (After 10,000 cycles, the ΔT decreased by only 6%, and the switching time remained approximately 1 s.), and excellent temperature stability. CYM trichromatic ECDs enable full-color display. Furthermore, the flexible devices maintain over 90% of their initial ΔT after 2000 bending cycles at a radius of 15 mm. They also demonstrate good compatibility with inkjet printing processes, and large-area devices (10 × 10 cm2) fabricated using this method exhibit excellent electrochromic performance. This work provides a viable pathway toward the practical realization of large-area, patterned, and flexible ECDs.
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Nature Communications
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2026
·
IF 18.1
Liu Xiangyun,Chai Youzheng,Gu Yuwei,Li Yongqi,Wang Xiao,Wang Qiancheng,Zhang Gong,Liu Huijuan,Qu Jiuhui
High-salinity mine water generated during membrane concentration of mine water contains structurally stable complex organic matter that resists removal and mineralization by conventional advanced oxidation processes, ultimately producing low-value by-product salts that hinder the resource utilization pathway. Leveraging the ultraviolet sensitivity of inherent chromophore groups and conjugated structures, this study developed an ultraviolet-activated assisted electrochemical process. By harnessing ultraviolet/oxidant synergies, this approach achieves ~89.9% total organic carbon removal, with minimal performance decay over 1000 hours. Combined with ultraviolet-visible spectroscopy, fluorescence excitation-emission-matrix spectroscopy, fourier transform ion cyclotron resonance mass spectrometer, and model contaminant experiments, this study elucidates an ultraviolet activation and radical attack synergistic mechanism driving organic mineralization. The direct integration of purified brine with bipolar membrane electrodialysis successfully produces acid, high-purity alkali (>99%), and reusable water, thereby closing the loop of impurities removal and resource recovery. This integrated system offers a strong strategy for high-value resource recovery and sustainable mine water management.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Xiaolong Zhang,Weiwei Liu,Ruiying Xu,Dongmei Wu,Naitian Zhang,Xiaoyan Yu,Ximing Cui,Jinlian Li
The directional self-transport of water droplets holds significant application value in fields such as microfluidics and water collection. Current research mostly focuses on single wettability gradients or fixed surface structures, lacking systematic exploration of dynamic wettability regulation and SnO 2 -based intelligent surfaces. In this study, a triangular-patterned SnO 2 surface (TPSS) was constructed via anodic oxidation combined with ultraviolet (UV) irradiation. Dynamic regulation of surface wettability was achieved by adjusting the UV irradiation time, and the influence of wettability changes on the self-transport behavior of water droplets was systematically investigated. The results showed that no directional self-transport of water droplets occurred when the water contact angle (WCA) was greater than 33°; water droplets transported directionally in a droplet-like form when the WCA ranged from 10° to 33°; when the WCA was less than 10°, water droplets spread into a film-like form with a significant decrease in transport speed, but the addition of a second water droplet could recondense them and restore their self-transport capability. Combined with X-ray photoelectron spectroscopy (XPS) characterization and in-situ optical observation, the synergistic regulation mechanism of Laplace pressure difference and hysteresis force was clarified. Moderate UV irradiation enhances surface hydrophilicity, and the Laplace force generated by the curvature difference overcomes the hysteresis resistance to drive the droplet transport. Excessive UV irradiation, causing the water droplets to spread and the Laplace force to attenuate, while the liquid film can restore the droplet-like form and transport capability through a buffering effect. This study provides an experimental basis and theoretical support for the design of dynamically adjustable microscale water droplet self-transport intelligent surfaces, expands the application of SnO 2 in fields such as microfluidics and micro-detection, and realizes an efficient fog collection function based on TPSS.
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ENVIRONMENTAL RESEARCH
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2026
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IF 8.2
Chengwan Wang,Junchen He,Aoyu Shen,Tong Xie,Ruo Huang,Xian Wu,Yue Yuan,Sheng-Tao Yang
Nitrate (NO 3 - ), a prevalent pollutant in aquatic ecosystems, poses significant ecological and human health risks due to its excessive accumulation, which accelerates eutrophication. In this study, a novel bimetallic material (B-Fe/Cu) was synthesized via high-energy ball milling using micron-sized zero-valent iron (ZVI) and copper salts. When integrated with ultraviolet (UV) light, the UV/B-Fe/Cu system achieved complete conversion (100%) of 10 ppm NO 3 - -N within 120 minutes. Intriguingly, abundant Cu species were found to mediate the efficient redox cycling between Fe 3+ and Fe 2+ , and superoxide radicals (O 2 ·- ) facilitated the redox cycling between Fe 3+ /Fe 2+ and Cu 2+ /Cu + , while the localized micro-acidic microenvironment of B-Fe/Cu enabled the dynamic pH regulation during nitrate reduction. These triple functionalities ensured the full nitrate conversion in UV/B-Fe/Cu system without toxic NO 2 - byproduct formation across a wide pH range of 3.0-11.0. Furthermore, the UV/B-Fe/Cu system demonstrated exceptional operational stability and environmental robustness, retaining >90% reduction efficiency after four consecutive reuse cycles. These insights advance the rational design of iron-based materials for scalable and sustainable water purification technologies.
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PubMed
高影响因子
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
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2026
·Vol. 40
·期 11
·2347-2359
·
IF 2.6
Haitao Yu,Aiguo Yuan,Jieqiong Zhou,Laxiang Yang
Antibiotic residues in water present significant ecological and public health challenges, necessitating the development of efficient advanced oxidation processes. The present study investigated a novel vacuum ultraviolet/ultraviolet/persulfate (VUV/UV/PS) process for degrading sulfamethazine (SMN), a representative sulfonamide antibiotic, in water. SMN degradation was assessed under UV, UV/PS, VUV/UV, and VUV/UV/PS conditions. All processes exhibited pseudo-first-order kinetics, with apparent rate constants of 0.12, 0.28, 0.25, and 0.52 min‒1, respectively. The VUV/UV/PS process achieved near-complete SMN removal (99.4%) within 10 min, surpassing the performance of UV/PS (94.4%) and VUV/UV (91.7%). Quenching by tert-butanol and methanol decreased the apparent rate constant to 0.31 and 0.16 min‒1, respectively, indicating the contributions of both hydroxyl radicals and sulfate radicals. The degradation rate increased with persulfate concentration but approached saturation above 5 mM. Higher initial SMN concentrations inhibited the reaction kinetics, while mildly acidic conditions enhanced degradation. Chloride and sulfate had minimal effects, whereas nitrate, bicarbonate, and particularly natural organic matter significantly inhibited degradation. Analysis of transformation products indicated three concurrent pathways: N–S bond cleavage, hydroxylation, and oxidation, followed by further oxidation of intermediates. These findings demonstrate the VUV/UV/PS process as a rapid and mechanistically robust approach for SMN removal in water treatment.
KEY WORDS: Sulfamethazine, Degradation, Vacuum ultraviolet, Persulfate, Radicals
Bull. Chem. Soc. Ethiop. 2026, 40(11), 2347-2359
DOI: https://dx.doi.org/10.4314/bcse.v40i11.5
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Kui Wang,Wenhua Wang,Xudong Liu,Chang Yang,Yulin Liu,Xumin Li,Linghan Xiao,Guipeng Quan
s Ionogels, as a functional material with ionic conductivity, flexibility and environmental stability, are widely used in the field of flexible sensors. However, conventional ionogels often face problems such as insufficient adhesion and unstable sensing performance in wet or underwater scenarios. Hence, this study prepared a versatile ionogel sensor exhibiting environmental stability and strong adhesion, suitable for underwater sensing, via UV-initiated polymerization of tert-butyl acrylate (TBA), methoxyethyl acrylate (MEA), and 2,2,3,4,4,4-hexafluorobutyl acrylate (HFBA) monomers in 1-butyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide ([BMIM][TFSI]) as the dispersion medium. Hydrophobic TBA and HFBA monomers effectively block water molecule penetration into the gel, granting excellent anti-swelling properties (mass retention > 90 % in various solvents). Fluorine-containing segments in the gel enhance thermal stability (only 2 % mass loss was observed after 21 days at 80 ℃) and impart underwater self-healing ability and high adhesion strength. The ionic liquid is uniformly distributed in the three-dimensional network structure of the gel, providing excellent electrochemical performance and endowing the gel with rapid response capability (response time of only 3 ms). This work provides a promising approach for the application of ionogel sensors in wearable devices in humid environments.
研究领域:
材料科学
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传感器与传感技术
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高分子化学
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柔性电子学
·
环境稳定性
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iScience
·
2025
·Vol. 28
·期 7
·112867
·
IF 4.1
Yiyang Gao,Qihao Jiang,Yanming Liu
This study introduces a UV-curing resin leveraging the Christiansen effect to achieve dynamic color modulation in phase-separated elastomers (PSE) through solvent composition and temperature control. By matching refractive indices between solvent (dimethyl phthalate/tributyl citrate) and polymer phases, PSE selectively transmits-specific wavelengths, enabling continuous color shifts from red to purple. The elastomers exhibit robust mechanical properties (>600% elongation, >300 kPa modulus) and function across a broad temperature range (−25°C–130°C). Compatible with 3D printing, the resin enables real-time solvent adjustments during fabrication, supporting spatially continuous color transitions without parameter modifications. This approach advances applications in adaptive optical devices, temperature-responsive displays, and multi-material 3D printing, offering a dye-free strategy for structural coloration in smart materials. Chemistry; Materials science; Physics
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PubMed
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Caihong Qin,Xiaoge Zhang,Peng Zhang,Jiayu Huang,Rongrong Liu,Tong Wang
Non-thermal plasma (NTP) technology has emerged as a promising approach for the control of chlorinated volatile organic compounds (CVOCs) due to its high degradation efficiency and operational simplicity. However, practical application is constrained by secondary ozone (O₃) emissions and incomplete degradation of CVOCs to CO 2 and HCl. To address these limitations, a liquid-phase UV system was integrated downstream of the NTP reactor to convert O₃ into reactive oxygen species (ROS), thereby enhancing DCM mineralization. The results showed that the degradation efficiency (DE) and mineralization rate (MR) of DCM in the NTP+UV(L) system reached 83.5% and 73.9%, respectively, which were markedly elevated compared to those of the NTP system (DE: 17.3%, MR: 20.9%) and the UV(L) system (DE: 28.7%, MR: 36.1%). The synergistic effect in this combined system was attributed to the activation of O 3 into hydroxyl radicals (·OH) and superoxide ions (·O 2 - ) by UV light in the solution for the deep oxidation of DCM. The chlorine in DCM was converted into chloride ions (Cl - ) and trapped in the solution. Finally, the reaction pathways of DCM within the NTP+UV(L) system were inferred by detecting organic intermediates in both the gas and liquid phases. This novel combined NTP+UV(L) system represents a potential method for DCM degradation.
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ENZYME AND MICROBIAL TECHNOLOGY
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2020
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IF 3.448
Chuankai Yang,Miaorong Zhang,Wei Wang,Yao Wang,Jianguo Tang
A colorimetric platform based on enzyme-inorganic hybrid nanoflowers was used for ultraviolet-visible detection of hydrogen peroxide (H 2 O 2 ). The hybrid nanoflowers were prepared via incubation at room temperature using horseradish peroxidase (HRP) and copper phosphate (Cu 3 (PO 4 ) 2 ) as the organic and inorganic components, respectively. HRP/Cu 3 (PO 4 ) 2 hybrid nanoflowers (HRP-HNFs) showed linear H 2 O 2 detection range from 100 nM to 100 μM, moreover, HRP-HNFs exhibited good selectivity for H 2 O 2 detection due to the specificity of HRP. In addition, HRP-HNFs have good reusability, excellent color stability and long-term storage stability, which indicate HRP-HNFs are promising for catalysis and biomedical applications.
研究领域:
生物化学
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分析化学
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纳米材料科学
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CHEMICAL ENGINEERING JOURNAL
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2016
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IF 5.31
Jiangya Ma,Jun Shi,Houcheng Ding,Guocheng Zhu,Kun Fu,Xue Fu
This work presents a preparation process and flocculation performance evaluation of a novel cationic polyacrylamide PADC synthesized by low-pressure ultraviolet (UV) initiation. Flocculant of PADC was polymerized with acrylamide (AM), diallyl dimethyl ammonium chloride (DMDAAC) and coconut diethanolamide (CDEA) in homogeneous aqueous solution under the irradiation of low-pressure UV, and 2-hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone (Irgacure2959) was used as photo sensitizer. The factors that affect polymerization were investigated; these include monomer concentration, initiator dosage, mass ratio of m AM : m DMDAAC and irradiation time. Structures and morphologies were characterized by Fourier transform-infrared (FTIR) spectroscopy, nuclear magnetic resonance hydrogen (1H NMR) spectra, scanning electron microscope (SEM), and thermo gravimetric and differential thermal analysis (TG-DTA). The flocculation performance was evaluated by removing high turbidity kaolin suspension; flocculation mechanism was also correspondingly analyzed. Experimental results show that the PADC efficiently removes the suspended particles efficiently by charge neutralization and bridging effect in an environment with wide range of pH.
研究领域:
环境科学
·
高分子化学
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危险品化学品经营许可证（带存储）