ACS Photonics
·
2026
·Vol. 13
·期 15
·4374-4386
·
IF 6
Zhou Yuqi,Zhai Yalin,He Tao,Wan Peng,Kan Caixia,Shi Da Ning,Kong Fanqiang,Han Long,Jiang Mingming
The monolithic integration of solar-blind ultraviolet
polarization
sensitivity and high-energy X-ray detection into a single semiconductor
platform is urgently demanded for next-generation multimodal smart
sensing, yet remains unattainable with mainstream ultrawide bandgap
materials (e.g., Ga 2 O 3 , hBN, diamond, and others)
due to their inherent trade-offs among bandgap, stopping power, and
anisotropy. Here, we break this deadlock by developing lead-free layered
CsAgCl 2 perovskite single crystals via a well-controlled
chemical solution deposition method. This material features an ultrawide
indirect bandgap of 4.29 eV, a Cs/Ag heavy-atom constituent,
and pronounced optical anisotropy. The developed Ag/CsAgCl 2 /Ag device architecture delivers a comparable polarization-sensitive
solar-blind ultraviolet photodetector with a dichroic ratio of 4.6,
responsivity of 560 mA/W, specific detectivity of 2.3 ×
10 13 Jones, and fast response (300/270 μs)
at 250 nm, outperforming all reported leadfree perovskite deepultraviolet
detectors. Concurrently, leveraging a large mobility–lifetime
product (μτ ∼ 2.8 × 10 –4 cm 2 V –1 ) and ultralow dark current
drift (1.25 × 10 –4 μA cm –1 s –1 V –1 ), the same device showcases
ultrahigh sensitivity of 10563 μC·Gy –1 ·cm –2 , incredibly low detection limits of
28.7 nGy air ·s –1 , and high-resolution
imaging at 50 V for 50 keV X-ray photons, rivaling commercial
directconversion materials. Boasting outstanding ambient stability
and ultralow dark current, this CsAgCl 2 platform uniquely
unifies two incompatible functions, delivering an eco-friendly, transformative
paradigm for compact multimodal sensing with profound scientific and
practical implications.
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ACS Applied Polymer Materials
·
2025
·
IF 4.7
Canqun Liu,Dazhi Liufu,Dianping Cai,Guanhao Ma,Zhijun Wu,Jinqing Qu
Traditional nonisocyanate polyurethane coatings require long curing times or high temperatures and use a large amount of organic solvents, which leads to low productivity, energy waste, and environmental pollution. This study demonstrates a green chemistry method for synthesizing a series of solvent-free vinyl-based amine-derived tris(hydroxypropyl urethane) methacrylates (NI-AUMAs) that can be rapidly cured at room temperature without the use of toxic isocyanates. First, 4,5-epoxycyclohexane-1,2-dimethyl dicarboxylate diglycidyl ether cyclic carbonate (EDDC) was reacted with n-butylamine (BA), n-hexylamine (HA), and benzylamine (BZA), respectively, to synthesize a series of nonisocyanate amine-derived tris(2-hydroxypropyl urethane)s (NI-AUs). Then, the nonisocyanate amine-derived tris(2-hydroxypropyl urethane)s (NI-AUs) were reacted with methacrylic anhydride (MAAH) to prepare vinyl-based nonisocyanate amine-derived tris(hydroxypropyl urethane) methacrylates (NI-AUMAs), including nonisocyanate butylamine-derived tris(hydroxypropyl urethane) methacrylate (NI-BAMA), nonisocyanate hexylamine-derived tris(hydroxypropyl urethane) methacrylate (NI-HAMA), and nonisocyanate benzylamine-derived tris(hydroxypropyl urethane) methacrylate (NI-BZAMA). The structures of these NI-AUMAs were confirmed by FT-IR and 1H NMR. A series of nonisocyanate urethane-based UV-cured coatings (NI-UVC coatings) with good thermal stability, pencil hardness, adhesion, and chemical solvent resistance were prepared from NI-AUMA, photoinitiator (2-hydroxy-2-methylpropiophenone 1173), and polyethylene glycol diacrylate (PEGDA) or 1,1,1-tris(acryloyloxymethyl)propane (TMPTA). Additionally, the NI-AUMA resin synthesized in this experiment can also meet the requirements for the 3D printing of various highly complex models. In general, this study provides a green synthesis method for preparing NI-UVC coatings and 3D-printed products. Undoubtedly, this will greatly promote the development and application of environmentally friendly nonisocyanate urethane-based materials in coatings and 3D printing.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chaoming Xie,Shengxi Jiang,Yingqi Li,Donglin Gan,Yingbo Wang,Hongping Zhang,Jie Weng,Zhenyu Zhang,Hongyu Sun,Xiong Lu
High-altitude environments significantly hinder wound healing due to low temperatures and reduced oxygen levels, leading to increased reactive oxygen species (ROS) and decreased antioxidant enzyme activity. Conventional hydrogel dressings are inadequate under these extreme conditions, as they lack cryoprotective and oxygen-generating capabilities. To address these challenges, we developed a multifunctional DL-PCaO 2 -PAM hydrogel with self‑oxygenating, anti-freezing, antioxidant, and UV-resistant properties to promote wound healing in high-altitude environments. The hydrogel was synthesized by incorporating dopamine-modified calcium peroxide nanoparticles (PCaO 2 NPs), demethoxylated lignin (DL), and polyacrylamide (PAM) using a glycerol/water binary system. This formulation enables continuous self-generation of oxygen, ensuring a sustained oxygen supply under hypoxic conditions. The anti-freeze property of hydrogel arises from the presence of phenolic hydroxyl groups and the glycerol/water system, which prevent ice formation at subzero temperatures. Furthermore, PCaO 2 NPs and DL endow the hydrogel with excellent mechanical strength, tissue adhesion, and UV resistance properties under subzero temperatures. Moreover, the DL-PCaO 2 -PAM hydrogel effectively scavenges ROS, alleviate inflammation, and accelerates wound healing in both diabetic and high-altitude hypoxic wound models. This innovative hydrogel offers a promising solution for wound care in high-altitude settings and holds potential for broader clinical applications.
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POLYMER DEGRADATION AND STABILITY
·
2026
·
IF 8.1
Zeshi Hao,Shuqiong Liu,Yuying Zheng
Layered double hydroxides (LDHs) hold significant promise as antioxidant carriers for enhancing the aging resistance of polymers. However, their widespread application is hampered by inherent limitations such as low antioxidant loading capacity, diminished activity post-intercalation, and insufficient ultraviolet (UV) shielding. This study presents a strategic dual-modification approach: the UV absorber (UV-284) was intercalated into the ZnAl-LDH interlayers, constructing an intrinsic "UV shield" while the hindered phenolic antioxidant (AO) was covalently grafted onto the LDH surface using γ-glycidyl ether oxypropyl trimethoxysilane (KH-560) as a bridging molecule. This process successfully created a synergistic anti-aging system, denoted ULKA, which integrates both UV shielding and radical scavenging functionalities. Results demonstrate that the intercalation of UV-284 reduced the band gap of ULKA from 3.84 eV to 2.88 eV, significantly enhancing its absorption of low-energy ultraviolet light. Furthermore, the introduction of an electron-donating ester group into the antioxidant molecule increased the electron cloud density around the phenolic hydroxyl groups, thereby improving its radical capture efficiency. Incorporating merely 1 wt% of ULKA into polypropylene (PP) via melt blending yielded PP/ULKA composites with superior resistance to photo-thermal oxidation compared to both pure PP and PP containing an equivalent amount of commercial antioxidant Irganox 1010. After 600 h of UV accelerated aging, the PP/ULKA composite retained 85.94% of its impact strength and 81.76% of its elongation at break, significantly outperforming PP/1010. The oxidation induction time (OIT) of the composite reached 22.7 min. Following 28 days of thermal oxidative aging at 110 °C, the increase in the carbonyl index (CI) was merely 0.93%, far lower than the 3.5% increase observed for pure PP. XPS analysis further confirmed that the C = O /C-C intensity ratio increased by only 0.018, a value significantly lower than those of other samples. This work provides a novel design strategy and experimental foundation for developing highly efficient and migration-resistant anti-aging additives for polymers.
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PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Le Wu,Jinghua Du,Wenhe Guo,Xiaoyu Dong,Chao Li,Shuang Zheng,Xinrui Sun,Haoyan Yin,Xiaohua Hou,Guobing Zhang,Yunsheng Ding
The performance of brightness enhancement films in liquid crystal displays is fundamentally governed by the interfacial adhesion and light transmittance between the Polyethylene terephthalate (PET) base layer and UV-curable layer. In this study, a series of waterborne polyurethane (WPU) were synthesized to serve as interfacial adhesion layer to achieve robust adhesion while maintaining the transparency of the BEFs. By adjusting the molar ratio between polyester diol and isosorbide, the structural proportion of soft and hard segments were changed and modified. The effects of the hard segment content on the surface energy, thermal stability, peel strength, and mechanical properties of the WPU were investigated. The results indicated that the incorporation of WPU with the isosorbide structure enhanced the peel strength between PET and UV-curable layer, while the transparency of PET was maintained. Compared to untreated PET, the introduction of WPU interlayer increased the peel strength between the PET and the UV-curable layer to 1.36 N/mm, representing a 91% improvement. This work provides an effective strategy for design and synthesis of WPU interlayer with strong adhesion and high transparency of PET and UV-curable layer.
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RSC Advances
·
2026
·Vol. 16
·期 7
·6210-6216
·
IF 4.6
Jian Wang,Feng Xu,Zhenzhong Liu,Linli Xu,Mingyue Liu,Ye Deng,Yue Sun,Yanjing Zhang,Dan-Hua Wang,Youju Huang
Herein, we report a novel method to synthesize the dumbbell AuNRs@BCP nanoparticles via UV light-initiated RAFT polymerization-induced self-assembly in situ. This strategy provides a promising alternative for synthesizing asymmetric inorganic/polymeric hybrid nanoparticles with tunable morphologies. Shape-dependent surface-enhanced Raman scattering (SERS) experiments in dilute dispersions, along with electric field simulations, were conducted. Due to the plasmonic hotspots formed between the AuNRs and BCP domains, the dumbbell AuNRs@BCP nanoparticles were ideal for generating strong and reproducible SERS signals for methyl orange.
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Journal of Water Process Engineering
·
2026
·
IF 6.7
Tariq Ali,Yiwei Li,Yuxian Wu,Yuke Zhang,Bingjie Fang,Saleem Raza,Ruidi Chen,Yeyuan Xiao
Photocatalytic technology offers a promising solution for degrading organic pollutants in wastewater. However, catalysts often suffer from limited light absorption and rapid electron-hole recombination. To address the challenges, we developed a heterogeneous TiO 2 /CoAl-LDH catalyst for photocatalytic degradation of dyes such as Acid fuchsin (AF) and methyl orange (MO) and real wastewater under UV light irradiation. The aligned band structures of TiO 2 and LDH enhanced UV light energy absorption and electron-hole separation, resulting in superior photocatalytic activity. In treating real dyeing wastewater, TiO 2 /CoAl-LDH + H 2 O 2 + UV achieved higher decolorization than UV/H 2 O 2 or catalyst/H 2 O 2 alone under the same operating conditions. The process within the early stage (0–45 min) followed pseudo-first-order kinetics (kₐₚₚ ≈ 1.50 × 10 −2 min −1 ), with a clear H 2 O 2 optimum at 40.8 mM. Excitation–emission matrix (EEM) fluorescence showed rapid quenching of protein-like (B/T) and humic/fulvic-like (A/M/C) peaks with blue-shifts under the TiO 2 /CoAl-LDH + H 2 O 2 + UV condition corroborating deeper oxidation and mirroring the ADMI decolorization trend (fast loss of B/T within 15 min, followed by progressive depletion of humic-like emission). This study presents a simple and cost-effective method for developing efficient hierarchical semiconductor materials potentially applicable as photocatalysts for wastewater treatment.
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IEEE TRANSACTIONS ON ELECTRON DEVICES
·
2026
·
IF 3.2
Zilong Guo,Zepeng Li,Qi Liu,Chunwei Zhang,Jiaqi Zhang,Hao Kan,Yang Li
In the fields of industrial manufacturing, biomedical diagnostics, and environmental monitoring, computing systems with von Neumann architecture suffer from inefficiencies due to the separation of UV sensing, memory, and processing, leading to increased complexity and hardware overhead. In-sensor computing utilizing UV-responsive optoelectronic neuromorphic devices offers a promising alternative by bypassing these limitations for efficient, low-power UV information processing. Here, we present a UV-responsive optoelectronic synapse based on a GaO x /ZnMgO quantum dots (QDs) heterojunction. This device selectively detects UV light and intrinsically suppresses noise, enabling integrated clear perception and fast computation. Various biological synaptic behaviors are demonstrated on the device under 300 nm UV illumination, including short-term memory (STM) to long-term memory (LTM) transition, learning–forgetting–relearning cycles, and dark adaptation behaviors. Leveraging synaptic features, a UV-driven neuromorphic vision system built from the device achieved 97% recognition accuracy on handwritten digits even in the presence of RGB noise. These results highlight the potential of GaO x /ZnMgO QDs heterojunction synapses for robust, noise-resilient in-sensor computing and high-fidelity UV image processing.
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
·
IF 7.8
Mahmoud Radwan,Zhimin Qiang,Yu Lei,Huiyu Dong,Gholamreza Moussavi,Mengkai Li
Ultraviolet/chlorine (UV/Cl 2 ) process is promising for degrading persistent micropollutants, but suffers from toxic disinfection by-products (DBPs) formation. Here, we developed a new UV/Cl 2 /H 2 O 2 process by combining UV/Cl 2 with a low dosage of H 2 O 2 , which not only enhanced micropollutant degradation but also reduced DBP formation. Taking a recalcitrant taste and odor (T&O) compound, 2,4,6-tribromoanisole (TBA) as an example. UV/Cl 2 /H 2 O 2 increased 2,4,6-TBA degradation rate constants by 90 % and 60 % than those of UV/H 2 O 2 and UV/Cl 2 , respectively, primarily due to increased HO • production. The combined contribution of UV and HO • to the degradation was substantial, accounting for 82−96 % of the overall degradation. Regarding simultaneous DBP formation from 2,4,6-TBA, UV/Cl 2 /H 2 O 2 decreased trihalomethanes (THMs) levels by 79 % compared to UV/Cl 2 . Furthermore, during post-chlorination, UV/Cl 2 /H 2 O 2 reduced the DBP formation potential by 18 % compared to UV/Cl 2 . In UV/Cl 2 /H 2 O 2 , THMs formation was reduced by 52.5 %, haloacetamides (HAMs) formation by 48.5 %, and haloacetic acids (HAAs) formation by 16.7 % compared to UV/Cl 2 using real water samples. The reduced DBP formation may result from the competitive reaction of HO • with halogenation agents and the destruction of halogenated sites. This work establishes a practical AOP that simultaneously enhances micropollutant removal and suppresses DBP formation.
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MATERIALS CHEMISTRY AND PHYSICS
·
2019
·
IF 2.781
Jianan Jiang,Hongfei Pan,Weiran Lin,Wenmao Tu,Haining Zhang
Design and synthesis of electrochemical stable polymer electrolyte membranes with rational ionic conductivity is essential for elevated-temperature all-solid-state lithium ion batteries . Herein, we report that poly(ethylene oxide)-based semi-interpenetrating polymer electrolyte membrane synthesized through photo-crosslinking strategy shows promising electrochemical stability and great mechanical strength compared with membrane without crosslinked structures. The ionic conductivity of the designed membrane electrolytes can be also controlled through controlling the crosslinking density and the highest ionic conductivity is even slightly higher than that of pure PEO-based membrane electrolyte. The formed semi-interpenetrating polymer electrolyte membrane containing 20 wt% of crosslinking agent has the ionic conductivity of 1.59 × 10 −4 Scm −1 and is electrochemically stable under potential of 4.2 V at 65 °C. The thus-assembled lithium ion battery using lithium iron phosphate as cathode and lithium metal as anode exhibits a first discharging capacity of 148 mAhg −1 at 0.1 C under 65 °C and the discharge capacity remains 145 mAhg −1 after 40 charge-discharge cycles.
研究领域:
材料科学
·
电化学
·
储能技术
·
高分子化学
·
锂离子电池
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TURKISH JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 2
·542-549
·
IF 1.151
MA XIANGMEI,DONG ZHEHAO,WANG BIN,LIU LIMIN,YE RUOJUN
The uses of inorganic metal oxide as ultraviolet (UV) absorbers have potential to increase the production of UV protection and can also overcome the disadvantages of organic molecules. In this article, we report an effective technique to fabricating polyvinyl chloride (PVC) films with well UV shielding efficiency. Surface modification of zinc oxide (ZnO) nanoparticles (NPs) with different silane coupling-agents were achieved, and through solution casting technique dispersed within the PVC matrix. Infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and UV spectrophotometer were applied to study the structures, dispersions, and optical properties. The results showed that the functionalized ZnO NPs could be well dispersed in PVC and endow the polymer composite films with significantly improved anti-UV capability. The facile processing and obtained properties of PVC composites have shown potential for low cost and environmentally sustainable applications in the UV protection field.
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ENVIRONMENTAL RESEARCH
·
2026
·
IF 7.7
Li Wu,Mingshan Song,Lifang Wen,Sisi Wei,Zhenqi Xin,Pengzhi Qi,Xiaojun Yan,Yongjiu Xu,Baoying Guo,Weifeng Wang
Benzotriazole ultraviolet stabilizers (BUVs) are widespread and bioaccumulative aquatic contaminants. However, their immunotoxicity and underlying molecular mechanisms remain largely unexplored. In this study, we measured the concentrations of ten BUVs in the East China Sea and selected UV-P for further study based on its highest detected concentration. Consequently, marine medaka ( Oryzias melastigma ) were exposed to an environmentally relevant concentration (3.5 μg/L) and two elevated concentrations (35 and 350 μg/L) of UV-P for 28 days. Immunological parameters, histopathological alterations, and transcriptomic profiles were examined at the end of exposure. Additionally, bacterial challenge tests using Pseudomonas fluorescens were performed to assess host resistance. The results revealed an initial increase in the levels of alkaline phosphatase, immunoglobulin M, C-reactive protein, and complement component 3, followed by a significant decrease with increasing UV-P concentration. Histopathological damage was observed in immune tissues, including the liver, intestine, kidney, and gills. Transcriptomic analysis indicated significant enrichment of differentially expressed genes in multiple immune-related pathways following UV-P exposure. The key pathways affected mainly included cytochrome P450-mediated metabolism and the complement and coagulation cascades. The 24-h post-infection assessment revealed dose-dependent increases in bacterial loads and mortality rates in UV-P-exposed fish. Collectively, these findings demonstrate that UV-P induces immunotoxicity and increases the risk of bacterial infection in marine medaka. This study highlights the potential ecological threats posed by BUVs and offers valuable insights into the immunotoxic mechanisms of these contaminants.
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