Environmental Technology & Innovation
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2026
·
IF 7.3
Yuli Kou,Kangkang Wang,Changyan Guo,Wei Wang,Jide Wang,Yuqi Yang
As microplastics (MPs) have received growing attention as vectors of environmental contaminants, their aging processes and the associated changes in adsorption and desorption behavior still require further investigation. In this work, we systematically examined how UV weathering influences the adsorption and release of methyl orange (MO) and ciprofloxacin (CIP) on polyamide 66 (PA66) MPs. The results showed that UV exposure caused chain cleavage and surface oxidation of PA66, leading to a more negatively charged surface, more oxygen-containing functionalities, and an enlarged specific surface area. Adsorption experiments demonstrated that the adsorption of MO and CIP on both virgin and aged PA66 followed the Langmuir model, and the processes were spontaneous and exothermic. After aging, the adsorption capacity for MO decreased significantly from 3.41 to 0.52 mg/g, while that for CIP increased from 1.37 to 1.97 mg/g. This contrasting behavior was attributed to enhanced electrostatic repulsion between aged PA66 and the anionic form of MO, inhibiting hydrogen bonding (HB), whereas new hydroxyl groups on aged PA66 promoted additional HB with the zwitterionic form of CIP. Further adsorption and desorption experiments under varying pH and salinity conditions showed that increased pH and salinity weakened HB, enhanced electrostatic repulsion, and promoted competition for active sites. Desorption experiments in simulated gastrointestinal fluids indicated significantly higher release rates of MO and CIP than in freshwater, especially under warm-blooded conditions. This work elucidates how pollutants behave on PA66 before and after aging, providing new perspectives on the environmental migration and transformation of MPs carrying organic contaminants.
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高影响因子
POLYMER
·
2026
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IF 5.1
Jiapeng Ye,Deming Zhou,Lifan Li,Chenji Zhang,Leyan Li,Kun Luan,Zaixing Zhang,Lingxiao Jing,Ruizhi Xue,Tonghua Zhang
Poly(p-phenylene-2,6-benzobisoxazole) (PBO) fiber, made from a rigid-rod isotropic crystal polymer, exhibits exceptional tensile strength, thermal stability, and creep resistance, surpassing Kevlar fiber (one of high-performance bullet proof fibers) with twice the strength and modulus. However, UV exposure cleaves the oxazole rings in PBO’s molecular structure, leading to decreased crystallinity, reduced mechanical strength, and limited suitability for outdoor applications. This study introduces a novel surface enhancement method using an olefin addition reaction with an azobenzene polyepoxy (Bt-APDB-BA-GMA) coating for Ultraviolet (UV) resistance. Further combining this with nano titanium dioxide (TiO 2 ) forms an organic-inorganic layer for additional protection. Comparative studies were conducted on three samples, including original PBO fibers (PBO), PBO fibers modified with azobenzene/epoxy copolymer (PBO/azo-epoxy), and PBO fibers modified with both azobenzene/epoxy copolymer and nano TiO 2 (PBO/TiO 2 @azo-epoxy). Modified fibers showed significant improvements: PBO/TiO 2 @azo-epoxy exhibited a 63 % higher pull-out strength (34.58 MPa) and retained 78.2 % tensile strength after 288 hours of UV aging, compared to 28.2 % for unmodified fibers. This innovation enhances PBO fiber durability, UV resistance, and interfacial bonding, paving its way for broader applications in body armor, aircraft, and advanced technologies.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
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IF 19.9
Yalin Zhai,Hui Li,Chengyu Luan,Songling Feng,Peng Wan,Caixia Kan,Daning Shi,Mingming Jiang
Solar-blind ultraviolet polarization detection is critically hindered by the intrinsic isotropy, complex fabrication, and insufficient polarization sensitivity of conventional ultrawide-bandgap (UWBG) semiconductors such as Ga 2 O 3 and h-BN. Here, we break this deadlock by introducing a rationally designed lead-free perovskite analogue, one-dimensional Rb 2 AgCl 3 single crystals, which were synthesized via a spatially confined cooling method. Its unique chain-like lattice endows an ultrawide bandgap of 4.83 eV, exceptional thermal stability up to 934 K, and pronounced in-plane optical anisotropy. Enabled by these attributes, a Schottky-junction self-powered photodetector achieves unprecedented solar-blind ultraviolet performance: a responsivity of 0.2 A/W, specific detectivity of 3.46 × 10 12 Jones, external quantum efficiency of 96%, ultrafast response of 7.9/17.5 µs, and a record dichroic ratio of 15.8 at 255 nm. These metrics not only surpass all reported perovskite-based devices but also rival, and even outperform, state-of-the-art UWBG semiconductors. Furthermore, the detector enables high-fidelity polarization imaging, convolutional neural network integration with >99% recognition accuracy, and a 6 × 6 array encryption system based on physically unclonable function keys. This work elevates low-dimensional lead-free perovskites from mere substitutes to genuine rivals, establishing a transformative platform for intelligent, self-powered solar-blind optoelectronics.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 6
·124912
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IF 7.5
Yichang Qin,Jiesheng Hong,Hangrui Zhang,Xiaotao Peng,Gang Lu
This study investigated the degradation of three sulfonamide antibiotics, sulfamethizole (SMT), sulfapyridine (SPD), and sulfadiazine (SDZ), in a UV/peracetic acid (UV/PAA) system and developed an interpretable machine learning framework to predict their normalized concentration (C/C 0 ) evolution. UV/PAA markedly accelerated degradation compared with UV or PAA alone, with pseudo-first-order rate constants following the order SPD (0.331 min −1 ) > SMT (0.273 min −1 ) > SDZ (0 .1 53 min −1 ). UPLC-QTOF-MS and DFT analyses indicated common transformation pathways but distinct electronic characteristics among the three sulfonamides. The prediction framework integrated a full feature set comprising six reaction variables and three DFT-derived molecular descriptors. The reaction variables included UV intensity, PAA concentration, reaction time, UV fluence, PAA exposure, and UV-PAA coupling. Among six regression models evaluated using curve-level partitioning, support vector regression (SVR) achieved the best performance and maintained high predictive accuracy in the independent hold-out validation set (R 2 = 0.963). Ablation analysis showed that the combined reaction variables provided marginal improvement, whereas the DFT-derived molecular descriptors substantially enhanced prediction. SHAP analysis identified reaction time, UV fluence, and PAA exposure as the dominant contributors, while the molecular descriptors captured electronic differences. The approach provided an interpretable basis for predicting sulfonamide degradation performance and could support water treatment optimization.
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Advanced Science
·
2026
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IF 14.1
Jin Yan,Xin Ye,Linping He,Cheng Hong,Xu‐Huan Zhao,Gizachew Mulugeta Manahelohe,Xiao‐Tong Feng,Yu‐Cheng Gu,Qiang Bian,Min Wu,Ming‐Zhi Zhang
Fungicides are a crucial tool for protecting crops and ensuring consistent food supply. As a fundamental and widely‐used fungicide in global agriculture, mancozeb (MCB) suffers from rapid photodegradation, poor foliar adhesion, and substantial non‐target toxicity, limiting its efficacy and environmental compatibility. To address these issues, we developed a sunscreen‐inspired nano‐pesticide, MCB@URFSL, designed to enhance MCB's photostability, rainfastness, and targeted delivery. This system was fabricated via the co‐assembly of phthalate‐modified Pluronic F127 (URF) and lignosulfonate (SL), yielding monodisperse nanoparticles (∼180 nm) with integrated UV‐shielding, laccase‐responsive, and pathogen‐targeting properties. The strategy significantly improved MCB's photostability, retaining over 60% of antifungal activity after 5 days of UVA exposure. MCB@URFSL exhibited enhanced leaf adhesion and rainfastness on tomato leaves, along with laccase‐triggered release. In vitro and in vivo bioassays confirmed its superior protective and curative efficacy against fungal infections in cucumber seedlings. Importantly, the nanocarrier significantly reduced MCB's toxicity toward human keratinocytes, Escherichia coli , and zebrafish, with no acute mortality observed even at a concentration of 50 µg/mL. This work presents an intelligent nano‐pesticide strategy that synergistically enhances fungicidal efficacy and ecological safety, thereby establishing a promising platform for pioneering the next generation of agrochemicals. The sunscreen‐inspired nano‐pesticide, MCB@URFSL, provides UV‐shielding, enhanced rainfastness, and laccase‐responsive delivery for improved fungicidal efficacy and high ecological safety.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Zihao Huang,Jiamin Wang,Jiawei Hou,Haoyue Hou,Kaihui Xu,Hao Yuan,Sa Zeng,Tao Meng
Inorganic nanoparticles with excellent anti-ultraviolet ability such as titanium dioxide (TiO 2 ) are extensively utilized in sunscreens to protect against UV-induced skin photodamage and carcinogenesis. However, conventional TiO 2 nanoparticles exhibit inherent photocatalytic activity that generates harmful reactive oxygen species (ROS), which limits their applications as sunscreen. In this work, we firstly apply polysaccharide-polyphenol interaction to the sunscreen application of inorganic UV filters (named TiO 2 -TA-CS). Because of the synergistic effect of corn starch (CS) in enhancing TiO 2 nanoparticles dispersion and blocking ROS, TiO 2 -TA-CS exhibit the enhanced UV absorption and leverages tannic acid (TA) to achieve complete eradication of hydroxyl radicals and superoxide radicals generated by TiO 2 nanoparticles, which superiors to the previous reports of bio-safe sunscreen. Furthermore, the UV absorption capacity of TiO 2 -TA-CS Pickering emulsions is increased by a factor of 2.5 and there is no obvious cytotoxicity in the UV evaluation. Compared with commercial sunscreens, it has lower UV penetration rate and higher SPF value. In vitro studies and cell viability assays collectively confirm the excellent efficacy of the formulated sunscreen in mitigating photoaging and protecting skin cells against UV-induced damage. Therefore, the TiO 2 -TA-CS Pickering emulsions exhibit favorable biocompatibility, high UV protection, and human skin safety, providing a new strategy for sun protection and other medical applications.
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
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2026
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IF 4.4
Kadir Aygul,Li Yan,Ahmant Ali,Yan Yin,Dong Xiaoyu
In this study, a high-performance self-powered ultraviolet photodetector (UV PD) is demonstrated, which is fabricated through straightforward hydrothermal and electrochemical deposition techniques. The device features a p–n heterojunction structure composed of ZnO nanorods (NRs) as the n -type bottom layer, poly(3,4-ethylenedioxyselenophene) (PEDOS) as the p -type top layer, and copper oxide (CuO) nanoparticles (NPs) incorporated as a key intermediate layer. Under weak UV irradiation (365 nm, 0.32 mW/cm 2 ), the fabricated UV PD delivers outstanding self-powered performance, attaining a responsivity of 0.185 μA/W and a detectivity of 3.58 × 10⁹ Jones. The CuO NPs insertion layer is verified as the key contributor to device performance enhancement: the UV PD with the CuO NPs interlayer exhibits a responsivity higher than that of the device without the interlayer. This performance boost is attributed to the CuO NPs’ ability to optimize heterojunction quality-specifically; it facilitates carrier generation, transport, and separation while extending carrier lifetime, thus substantially enhancing the responsivity of the CuO NPs/ZnO/PEDOS self-powered UV PD. Additionally, the fabricated self-powered UV PD exhibits excellent multi-cycle stability and robust detection performance under different light intensities. With its high efficiency and low-cost fabrication process, this self-powered UV PD exhibits great potential for practical applications in UV sensing systems.
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高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2026
·
IF 12.2
Fang Jiang,Xinrong Liao,Haonan Dong,Ziyao Zhu,Li Guo,Huaxin Li,Li Rao,Zhihui Ai,Jingming Gong
Abstract The growing use of biochar is increasing the release of biochar-derived dissolved organic matter (BDOM) in surface waters. Concurrently, remediation of persistent per- and polyfluoroalkyl substances (PFAS) remains challenging. Although natural DOM can both photosensitize and scavenge reactive species, how BDOM modulates PFAS transformation in waters is unclear. Here, we show that low-level BDOM (1 mgC L–1) unexpectedly promotes PFAS defluorination in the UV/sulfite (UV/S) system by simultaneously boosting hydrated electron (eaq–) production and generating oxidizing radicals via triplet states (3BDOM*). The hydrophilic, moderately condensed aromatic, fulvic/humic-like fraction of BDOM is most effective across all tested feedstocks and pyrolysis temperatures. BDOM derived at 500 °C raises eaq– yield 2.6-fold over UV/S alone while co-producing •OH. Crucially, BDOM appears to reroute the eaq–-mediated decarboxylation–hydroxylation–elimination–hydrolysis pathway: instead of water addition, •OH may directly attack perfluorinated radical, making key steps more thermodynamically favorable and accelerating C–F cleavage. Leveraging naturally derived BDOM in waters, this eaq–/•OH-mediated reduction-oxidation coupling may reduce reliance on externally added chemicals while achieving complete degradation of perfluorocarboxylic acids and GenX within 1 h and ∼80% defluorination within 6 h. The findings establish BDOM as an intrinsic photosensitizer and electron ejector that reshapes radical chemistry and PFAS reaction pathways, supporting more efficient and sustainable UV/S-based remediation.
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Lianghuan Huang,Xinyue Cui,Kehao Fan,Ningjing Sun,Qiong Jiang,Lin Wen,Qing Lin,Shuduan Deng,Zhiyong Qin
Chitosan is a biodegradable, renewable, and biocompatible polymer with promising potential for food packaging. However, its practical use is limited by poor mechanical strength and insufficient antioxidant capacity. This study addressed these drawbacks by introducing dialdehyde cellulose (DAC) as a crosslinker and gallic acid (GA) as a bioactive additive to prepare chitosan/DAC/GA composite films. Varying the GA content (0–20 %, w /w) significantly enhanced the mechanical strength, UV barrier properties, and antioxidant activity. The composite film with 10 % GA (CDG-5) achieved a tensile strength of 32.31 MPa, a 17 % increase over pure chitosan film, and showed near-complete UV-blocking properties, with UV transmittance <0.1 % at wavelengths below 400 nm. Furthermore, the film exhibited high radical antioxidant activity (94.97 % DPPH and 92.31 % ABTS) and significant antibacterial efficacy, reducing Escherichia coli and Staphylococcus aureus colony counts by 86.82 % and 86.52 %, respectively. GA incorporation lowered moisture content, water solubility, and swelling ratio while increasing opacity. These results demonstrate the synergistic effects of DAC and GA in improving the structural and functional properties of chitosan films, supporting their use as active packaging materials in food and pharmaceutical applications.
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高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Xingyue Liu,Xingsheng Wang,Guojun Wen
The emerging wide-bandgap CsPbCl₃ perovskite has drawn tremendous attention in ultraviolet (UV) detection application. Nevertheless, the massive internal and surface defects in CsPbCl₃ polycrystalline films are harmful for the detector performance and stability. Hence, an organic triphenylphosphine oxide (TPPO) doping strategy for passivating CsPbCl 3 defects is developed for the first time, in which the TPPO doping is completed by vapor technique. The P = O group in TPPO can form strong P = O-Pb dative bonds with the uncoordinated Pb 2 + ions in CsPbCl 3 perovskite by donating lone electron pair on O atoms, thus passivating the Cl vacancy defects existing in the evaporated CsPbCl₃ films. After TPPO doping, the crystallization process, film morphology, optical absorption ability and carrier lifetime are ameliorated, while the trap state density of the CsPbCl 3 film are pronouncedly alleviated. This conduces to a more efficient carrier extraction as well as declined charge recombination and noise current, further boosting the overall UV detection parameters. The optimized 12 nm TPPO-doped CsPbCl 3 photodetector obtains a detectivity of 7.68 × 10 12 Jones, a current on/off ratio of 5.08 × 10⁵, and a response time of 2.16 μs at 0 V bias. Furthermore, TPPO-doped device achieves superior stability under long-term continuous or intermittent UV irradiation in ambient environment. This work proposes an efficient approach for defect passivation of hardly soluble CsPbCl 3 perovskite, boosting its commercial development in UV detection field.
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高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Chen-Yuan Ma,Xin-Mei Zeng,Jia-Tong Li,Xing-Yu Bi,Zhi Fang,Mei-Hong Duan
High-performance birefringent crystals are crucial for advancing modern optics. Regrettably, conventional birefringent crystals are usually limited by narrow transmission windows or insufficient birefringence. Recognizing that birefringence originates from structural anisotropy, we herein assembled anisotropic π-conjugated urea ligands through a cadmium-based open framework. By leveraging the distorted Cd-based octahedra and urea-derived hydrogen-bonding network, a novel birefringent crystal, Cd[C(NH2)2O]2Cl2, was successfully obtained. Cd[C(NH2)2O]2Cl2 was characterized by a characteristic 4 × 4 × 6 open-framework skeleton, wherein the repeating building unit {Cd[C(NH2)2O]2Cl4} is constructed by the oxygen sharing between distorted CdCl4O2 octahedra and planar [C(NH2)2O] groups. Notably, Cd[C(NH2)2O]2Cl2 achieved an excellent balance between wide bandgap and substantial optical anisotropy by exhibiting a short UV cutoff edge of 201 nm and a birefringence of 0.117@546 nm, which should benefit practical applications.
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高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Weiqin Yu,Yue Jin,Yuhao Zheng,Zhiwei Wu,Qing Wang,Qianjun Deng,Mingguang Yu,Yugang Huang
Herein, a bio-based photocurable resin derived from epoxidized soybean oil (ESO) for 3D printing and anti-counterfeiting applications. ESO-HEMANA prepolymer was synthesized via a ring-opening reaction between 2-hydroxyethyl methacrylate phthalate monoester (HEMANA) and ESO. The thiol-acrylate binary polymerization photo-curing 3D printing system was constructed by introducing trimethylolpropane triacrylate (TMPTA) and pentaerythritol tetrakis(3-mercaptopropionate) (PETMP). This system precisely regulated the mechanical properties and volume shrinkage rate of the resin, significantly enhancing its toughness and thermal stability, and effectively addressing the shortcomings of traditional UV-curable resins, notably high shrinkage and susceptibility to oxygen inhibition. The resin was successfully endowed with multiple response functions by doping tetrafluoroethylene (TPE) with fluorescence, aniline-2,5-disulfonic acid (BZ-SA) with phosphorescence, and reverse thermochromic powder (TC-PB40, TC-G60). This resin system was compatible with LCD/DLP 3D printing technology, enabling fabrication of complex components. A multi-level anti-counterfeiting and information encryption system was developed, incorporating ultraviolet (UV) excitation, multi-layer 3D printing information concealment, and a multi-dimensional encryption mechanism integrating fluorescence, phosphorescence and temperature responses. This mechanism required a stepwise decoding process to obtain real information with strong anti-cracking capabilities. This study demonstrates an integrated approach to green bio-based systems and 3D printing technology, resulting in “structure-function integrated” materials. It provided a novel strategy for high-level anti-counterfeiting and information encryption, with promising potential in multi-dimensional anti-counterfeiting and information encryption.
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高影响因子
危险品化学品经营许可证（带存储）