CHEMOSPHERE
·
2021
·
IF 7.086
Weiwei Guo,Tianqi Li,Qianru Chen,Junfeng Wan,Jie Zhang,Bo Wu,Yan Wang
The UV lights of different wavelengths were performed in boosting hydroxyl radicals ( OH) generation from traditional Fenton reagent for the gaseous toluene removal. The Fenton, UV 254 /Fenton and UV 365 /Fenton processes were first adopted to eliminate gaseous toluene through the bubble column reactor, respectively. The stable toluene removal efficiency in 60 min was 85.31% in the UV 365 /Fenton process, which was higher than other processes. The gaseous toluene was mainly oxidized into CO 2 rather than other gaseous intermediates in the UV 365 /Fenton process. For UV 365 /Fenton process, the GC-MS tests were carried out to figure out the aqueous intermediates of gaseous toluene removal. The OH concentration in the UV 365 /Fenton process was the highest among all the parallel tests via the EPR experiments and the quantificational measurements with coumarin as the probe. The iron ion in the aqueous solution was systematically evaluated with the experiments proceeding. The evolution of iron ion in the aqueous solution indicated that the fast reduction of Fe 3+ to Fe 2+ was assisted with 365 nm UV rather than 254 nm UV, which played a key point in the high gaseous toluene removal efficiency. This study demonstrated that the combination of UV 365 irradiation and Fenton in the wet scrubbing reactor performed a synergistic effect on the gaseous toluene removal.
✓ 已验证
DOI
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Tao Chen,Yangjing Li,Xuesong Chi,Xinru Tang,Lihang Chen,Di Wu,Jiangning Hu
Films derived from polysaccharides, such as bacterial cellulose (BC), present promising alternatives to conventional petroleum-based plastics but suffer from brittleness and a lack of bioactivity. To address these limitations, hesperetin nanoparticles (HST-NPs) were synthesized through a Mannich reaction and incorporated into BC films. The HST-NPs served dual roles by improving ductility as nanofillers and providing functionality as bioactive components. Compared with the pure BC film, the composite films showed a 34.75% increase in elongation at break, and its contact angle reached 72.55°, reflecting improved flexibility and hydrophobicity. The incorporation of HST-NPs provided UV-blocking, antioxidant, and antimicrobial properties, thereby extending strawberry shelf life. Soil degradation tests confirmed that the composite films degraded within 15 days, similar to pure BC films. This study presents an approach to improve the mechanical, bioactive, and environmental performance of BC-based films, demonstrating significant potential for sustainable food packaging.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2026
·
IF 9.2
Ning Li,Guozhang Bao,Simeng Chen,Yanan Xu,Yue Yuan,Zimin Fu
Veterinary Enrofloxacin (ENR) and UV-328 residues from agricultural mulch are common co-occurring organic pollutants in agricultural fields. Freeze-thaw (FT) cycles represent a prevalent stressor for crop seedlings at high latitudes and altitudes. However, studies investigating the toxic effects of FT cycles combined with multi-pollutant stress (ENR and UV-328) on crop seedlings in alpine grasslands remain limited. In this study, we selected leaves as experimental material to investigate the coupled stress effects of FT, ENR and UV-328 on rye seedlings. The results demonstrated that compared with single pollution stress, the combined pollution of ENR and UV-328 significantly enhanced the toxicity to crops, synergistically exacerbating oxidative stress responses under FT conditions. This combination disrupted cell membrane integrity and increased the activities of antioxidant enzymes. Furthermore, ENR and UV-328 impaired rye photosynthesis under FT conditions, leading to reduced contents of photosynthetic pigments and significant decreases in photosynthetic parameters (net photosynthetic rate, transpiration rate, etc.). Molecular docking analysis revealed that ENR and UV-328 bind to antioxidant enzyme, thereby altering antioxidant enzyme activities and affecting crop growth and development. Integrated biomarker response index (IBRv2) analysis indicated that FT was the primary determinant of significant ecotoxicity. Collectively, these findings confirmed that FT cycles exacerbated the synergistic ecotoxicity of ENR and UV-328 to rye seedlings. Accordingly, it is recommended to reduce the application of antibiotics and UV-328 in agricultural practices of FT regions. Future research may focus on deciphering the underlying molecular mechanisms of this synergistic toxicity and developing remediation technologies based on soil substrates.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
·
2026
·
IF 3.6
Jiawei Pan,Jie Cheng,Caili Yu,Xiang Xu,Faai Zhang
To improve the mechanical properties, eco-friendliness, and anti-corrosion properties of waterborne polyurethane (WPU) coatings, a nano-ZnO-modified rosin-based waterborne polyurethane (ZnRWPU) was synthesized via a prepolymerization method. The synthesis involved reacting silane coupling agent KH550-modified nano-ZnO (KH550@ZnO) with rosin-based acrylate glycol diol and isophorone diisocyanate (IPDI). The structure of the polyurethane was characterized by fourier transform infrared (FT-IR) spectra and X-ray powder diffractometer (XRD), ultraviolet spectra (UV–vis) for UV absorption capacity, thermogravimetry (TG) for thermal stability, water contact angle and water absorption for water resistance, and electrochemistry for corrosion resistance of the coating. The results showed that nano-ZnO could effectively improve the hydrophobicity, thermal stability, and UV protection of ZnRWPU, and the corrosion resistance of ZnRWPU in acid alkali and salt corrosion solutions were all increased compared with the RWPU without nano-ZnO. The optimal corrosion resistance was observed when the amount of nano-ZnO was 0.6 wt%. The successful integration of rosin with nano-ZnO modification offers a viable strategy for designing a new generation of high-performance, bio-based WPU coatings. Highlights Enhanced hydrophobicity and water resistance of the coating. Improved UV-blocking capability and thermal stability. Superior corrosion resistance in acidic, alkaline, and saline environments. Optimum overall performance achieved at 0.6 wt% nano-ZnO loading.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2026
·
IF 5.1
Jian Luo,Chenkai Jin,Juan Cai,Yan Lei,Juncheng Huang,Chao Fang,Lixin Song,Haining Na,Jin Zhu
Carbon nitride materials are promising for photocatalysis and optoelectronics owing to their earth-abundant composition and tunable electronic structure, yet they often suffer from limited charge separation and poor photothermal stability. However, achieving high-temperature luminescence retention together with long-term UV durability, especially in polymer-processable forms, remains challenging. Here, we introduce a dual-alkali co-doping concept (K/Na) that enables a carbon nitride phosphor with simultaneously improved thermal endurance and UV durability, and we further demonstrate its processability into transparent polymer composites. We report a potassium/sodium co-doped carbon nitride (CN–K/Na) synthesized by a solid-state route using 3-AT, NaOH, and KOH. Structural analyses indicate that K/Na incorporation modulates the local structure of the CN framework, which is consistent with synergistic regulation of defects and charge transport. The co-doped material shows a narrowed optical bandgap (2.23 eV), enhanced photoluminescence, and an increased TRPL lifetime (τ_avg ≈ 1.42 ns, from multi-exponential fitting), and significant thermal stability, retaining 90.8% emission at 475 K and ~75% at 625 K. Under extended UV exposure, the emission exhibits a non-monotonic evolution, reaching 1.7× of the initial intensity and maintaining 43% after 192 h, indicating notable optical durability. When incorporated into a polymer matrix, CN–K/Na effectively suppresses UV-induced degradation of PMMA, maintaining stable emission with minimal spectral drift. The improved UV durability of the composites is consistent with UV attenuation by the filler and reduced photodegradation of the polymer matrix. These results establish K/Na co-doping as a practical and scalable route to robust carbon nitride luminescent materials and UV-durable transparent composites for optoelectronic applications.
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2026
·Vol. 31
·期 2
·
IF 4.6
Xiaoyan He,Lisheng Tang,Ran Huang
With the growing demand for eco-friendly food packaging, poly(butylene adipate-co-terephthalate) (PBAT)/polylactic acid (PLA) composite films have emerged as promising biodegradable alternatives, but their inherent limitations (e.g., poor antioxidant capacity, weak UV stability, and insufficient antimicrobial activity) hinder practical applications. This study aimed to address these drawbacks by incorporatingRosmarinus officinalisL. extract (RM) as a natural multifunctional additive. PBAT/PLA/RM blend films with RM concentrations of 0.1%, 0.3%, 0.5%, and 1% were fabricated via melt extrusion and blown film processing. Key characterizations were conducted to evaluate thermal stability, mechanical properties, morphology, antioxidant activity, UV-shielding performance, antimicrobial efficacy, and biodegradability. The results showed that RM significantly enhanced the antioxidant capacity of the films, with the highest DPPH radical scavenging activity achieved at 0.3% RM. UV-blocking performance improved incrementally with increasing RM concentration, and films containing ≥0.5% RM filtered over 90% of UVA and UVB radiation. All composite films met biodegradability standards, with over 90% degradation observed after 240 days of composting, though RM prolonged the initial degradation stage by inhibiting early microbial activity. However, the antimicrobial effect of RM was limited, and concentrations exceeding 1% caused film stickiness, impeding processing. This work demonstrates that RM is a viable natural additive for functionalizing PBAT/PLA films, offering enhanced antioxidant and UV-shielding properties while maintaining biodegradability, thus providing a promising solution for sustainable food packaging.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2014
·
IF 3.208
Xuejuan Yang,Shouhai Li,Jianling Xia,Jian Song,Kun Huang,Mei Li
Two novel ultraviolet (UV)-curable vinyl ester resin (VER) monomers derived from myrcene and tung oil were synthesized via Diels–Alder reaction, glycidylation reaction and ring-opening esterification. Their chemical structures were confirmed by Fourier transform-infrared analysis (FTIR) and Proton nuclear magnetic resonance ( 1 H NMR). Then the two VER monomers were mixed at different weight ratios and cured under UV light. The curing processes were monitored by FTIR analysis. Tensile and flexural properties of the cured resins were also tested. The conversion rate of double bond exceeded 80% within 60 s and the final conversion rate was 95%. Tensile and flexural tests indicated that the rigidity–flexibility was balanced in the cured systems when the mixed resins contained 50–70 wt% of myrcene-based VER monomer. Dynamic mechanical analysis demonstrated that the storage modulus and glass transition temperatures of the cured resins increased with the increasing content of myrcene-based VER monomer. The crosslinking density of the cured copolymers also increased with the increasing content of myrcene-based VER monomer. Thermogravimetric analysis (TGA) showed that the main thermal initial decomposition temperatures ( T i ) of the cured copolymers were all above 388 °C. All the results demonstrated that comparable balanced properties could be obtained by mixing these two bio-based monomers together.
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2022
·Vol. 11
·期 3
·2202195
·
IF 10.05
Xiaojing Li,Zilong Chen,Fuming Li,Fangfang Zhang,Zhihua Yang,Shilie Pan
A long-lasting challenge in ultraviolet (UV) nonlinear optical (NLO) materials design is to combine conflicting and harsh properties into one structure, including wide UV transparency, strong NLO efficiency, and moderate birefringence to realize phase-matching at short wavelength. A fluorine-directed material design strategy is adopted to accelerate the process of finding NLO materials with optimal performances. In this work, taking LiB 3 O 5 (LBO) as a maternal structure, one O atom with two F atoms is substituted and LiNaB 6 O 9 F 2 which possesses novel double interpenetrating 3 [B 6 O 9 F 2 ] ∞ networks and fluorine-directed optimal performances including enhanced birefringence and phase-matching capacity is successfully obtained. The perfect balance among deep-UV cutoff edge, large second-harmonic generation (SHG) response (1.1 × KDP), and moderate birefringence (0.067 at 1064 nm) of LiNaB 6 O 9 F 2 makes it a promising UV NLO crystal.
研究领域:
材料科学
·
晶体化学
·
非线性光学
·
功能材料
·
固体化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.9
Luan Fu,Lulu Du,Zheng Lu,Weizhong Tan,Xiaohui Shi,Li Lv,Pinhua Zhang,Guangliang Cui
The fabrication of micro/nano metal oxide semiconductor (MOS) heterostructures, employing bimetallic metal–organic frameworks (Bi-MOFs) as self-sacrificing templates, can significantly enhance the sensitivity of the resulting nanocomposite materials. Herein, ZnO/NiO heterostructures derived from Ni/Zn Bi-MOFs were fabricated, which achieved outstanding UV-assisted NO 2 -sensing performance at room temperature. Our experiments reveal a sensitive dependence of the sensing performance of ZnO/NiO heterostructures sensor on calcination temperature. The ZnO/NiO-600 sensor, which was calcined at 600 °C, demonstrated the best sensing performance, achieving 3-fold sensitivity enhancement over pure ZnO. Under UV irradiation, the response value to 1 ppm NO 2 reaches 6.78, with corresponding response and recovery times of 15 s and 40 s, respectively. Furthermore, the ZnO/NiO-600 sensor exhibits an exceptional detection limit as low as 20 ppb and a strong linear response within the range of 20 ppb–1 ppm (R 2 = 0.994). The excellent sensing performance can be attributed to the synergistic effect of several factors, including the mesoporous structure of MOF-derived MOS materials, the formation of ZnO/NiO heterostructures, and UV irradiation. This work provides a promising strategy for the development of a novel Bi-MOF-derived MOS heterosturcture that can be applied to photoelectric gas sensor.
✓ 已验证
产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2026
·
IF 3.6
Ying Long,Xuehua Dong,Lin Qi,Lindong Luan,Zichen Ren,Zhien Lin,Guohong Zou
Balancing large birefringence with ultraviolet (UV) transparency remains a central challenge in the development of birefringent crystals. Herein, we report two Sb(III)-based hypophosphites, Sb(H2PO2)2Cl and Sb(H2PO2)2F, and comparatively investigate their crystal structures and optical properties. Single-crystal X-ray diffraction analysis shows that Sb(H2PO2)2Cl crystallizes in a wave-like two-dimensional (2D) layered structure, whereas Sb(H2PO2)2F adopts a 1D chain structure. Optical measurements reveal that Sb(H2PO2)2F exhibits a markedly enhanced birefringence of 0.205 at 546 nm, compared with 0.055 for Sb(H2PO2)2Cl, in good agreement with DFT-calculated values of 0.211 and 0.041, respectively. Meanwhile, Sb(H2PO2)2F retains a wide band gap of 4.81 eV and a short UV cutoff edge of 258 nm, indicating a favorable balance between optical anisotropy and UV transparency. Further structure–property analysis suggests that the enhanced birefringence of the fluoride is closely associated with the more favorable orientational efficiency of the stereochemically active lone pair on Sb3+. These results demonstrate that halogen substitution is an effective approach for tuning optical anisotropy in UV-transparent Sb(III)-based hypophosphites.
✓ 已验证
DOI
高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
·
2026
·
IF 4.6
Liu Wen-Qian,Wang Peng,Yuan Hao-Kai,Zhang Lin,Chen Bin,Jiang Hong-Fei,Wang Yi-Ran,Wang Lu,Li Shu-Sheng,Zong Chuan-Yong
On-demand peelable adhesives represent a pivotal green chemistry research avenue; however, they confront a critical challenge in reconciling robust interfacial bonding strength with efficient peelability. Herein, a cohesion-adhesion synergy-guided molecular engineering strategy was developed to fabricate UV-curable adhesives with the integrated properties of superior bonding strength and hot water-triggered peelability. The adhesive was formulated with custom-synthesized difunctional polyurethane acrylate (PM1) as the crosslinker, which was blended with complementary acrylate monomers. PM1 constructed a robust yet adaptable crosslinking network to ensure high cohesive strength; its polytetrahydrofuran diol- and polyester diol-derived soft segments endowed the network with superior molecular chain mobility and stress dissipation capacity. Additionally, the incorporation and compositional optimization of polar acrylate monomers modulate the cohesive energy, surface wettability, and interfacial adhesion of the substrate, thus realizing synergistic enhancement of the cohesive and adhesive properties. Systematic experimental investigations and molecular dynamics simulations were conducted to determine the structure-property relationships governing the composition, bonding performance, and mechanical properties of UV-curable adhesives. The optimized formulation achieved high shear strength (>5 MPa, glass substrates), excellent mechanical properties (tensile strength: 12.80 MPa, elongation at break: 313.70%), and good thermal stability (5 wt% weight-loss temperature > 240 °C). Notably, the developed adhesives realize rapid, complete, and residue-free debonding within 3 min of immersion in 60 °C water, where hydration-induced disruption of adhesive-substrate contact attenuates interfacial interactions. Additionally, the peeled adhesive can be recycled repeatedly after drying while retaining its excellent interfacial bonding performance. This study provides a versatile and scalable strategy for the rational design of high-performance functional adhesives, thereby paving the way for recycling electronic products and sustainable manufacturing.
The alternative text for this image may have been generated using AI.
✓ 已验证
DOI
高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
·
2026
·
IF 4.6
Gao Jing,Chen Liang,Qi Liang-Yuan,Li Su-Hong,Hu Yuan,Wang Xin,Ji Lian-Min,Wang Ying-Jian,Xing Wei-Yi
The flame-retardant monomer PG (P) was synthesized from diethylphosphinic acid and glycidyl methacrylate (GMA). Simultaneously, the phosphorus-containing flame-retardant monomer, TAEP (T), was synthesized from phosphorus oxychloride and 2-hydroxyethyl acrylate. A 50 µm thick transparent UV-cured coating, designated MAAR-P 8 T 4 , was successfully constructed on 0.5 mm thick polycarbonate (PC) films by blending PG and TAEP with melamine acrylate resin (MAAR). The fabricated coating demonstrated a high transmittance of 91.9% in the visible-light spectrum. The incorporation of monofunctional PG effectively regulated the system viscosity and mitigated curing shrinkage stress. Furthermore, the synergistic action of phosphorus in different valence states and nitrogen from MAAR imparted a dual gas-phase-condensed phase flame-retardant mechanism to the coating, enabling the PC substrate to attain a V-0 rating in the UL-94 vertical burning test. This research indicates that the MAAR-P 8 T 4 coating engineered via molecular design and component optimization concurrently overcomes the limitations of PC, namely its low surface hardness and inherent flammability. A straightforward and efficient preparation strategy provides a practical approach for transparent flame-retardant coatings for electronic and electrical applications.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）