International Journal of Environmental Science and Technology
·
2024
·
IF 3
Xu X.,Zhu L.,Chen C.,Luo C.,Jin Z.,Sun Z.,Fu Z.T
The study employed a direct hydrothermal method to synthesize NiO/La-KTaO 3 heterojunction photocatalysts. The photocatalytic efficiency of the composites was assessed by their ability to destroy isoamyl xanthate in the presence of Ultraviolet light, mimicking the conditions seen in flotation wastewater. The results showed a significantly greater photocatalytic activity when comparing the composite catalyst to KTaO 3 . A photocatalytic reaction was performed utilizing a 40 mg NiO/K 1−x La x TaO 3 (x = 0.04) photocatalyst at pH = 3. The reaction was carried out using 50 mL of isoamyl xanthate synthesis wastewater, which had a concentration of 20 mg/L. The degradation rate achieved after 30 min was 87.28%. The addition of nickel oxide (NiO) and the introduction of La into the K lattice position were thought to facilitate charge separation, migration, and the generation of additional active sites, hence augmenting the catalytic impact. The findings from radical capture tests indicated that the ·O 2− (superoxide ion) served as the principal active species in the photocatalytic process, playing a substantial role. The process of photodegradation of isoamyl xanthate was determined through the utilization of different analytical and testing methods. This work introduces a direct and effective approach for the eco-friendly decomposition of xanthate flotation wastewater.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Huanyang Yu,Yan Wang,Rundong Wang,Yuan Ge,Liyan Wang
The environmental pollution caused by plastic films urgently requires the development of non-toxic, biodegradable, and renewable biopolymer films. However, the poor waterproof and UV resistance properties of biopolymer films have limited their application in fruit packaging. In this work, a novel tannic acid cross-linked chitosan/gelatin film with hydrophobic silica coating (CGTS) was prepared. Relying on the adhesion of tannic acid and gelatin to silica, the coating endows CGTS film with excellent superhydrophobic properties. Especially, the contact angle reaches a maximum value 152.6°. Meanwhile, tannic acid enhanced the mechanical strength (about 36.1 %) through the forming of hydrogen bonding and the network structure. The prepared CGTS films showed almost zero transmittance to ultraviolet light and exhibited excellent radical scavenging ability (∼76.5 %, DPPH). Hence, CGTS film is suitable as a novel multifunctional packaging material for the agriculture to protect premature fruits, or the food industry used in environments exposed to ultraviolet radiation and rainwater.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Toxics
·
2025
·Vol. 13
·期 9
·706
·
IF 4.1
Juntong Gao,Qimeng Yang,Xiarui Fan,Xinwei Zhou,Peng Ren
Toxicological effects of microplastics (MPs) have been confirmed in a variety of microorganisms in aquatic environments, and they are closely correlated with the physicochemical properties of the MPs. In a natural environment, different aging treatments always induce different alterations in the physicochemical properties of MPs, thus influencing their environmental behaviors and biotoxicity. In this work, physicochemical properties and toxicity towardsEscherichia coli(E. coli) were investigated in polystyrene (PS) MPs (3 and 10 μm) before and after aging by UV irradiation and biofilm formation, respectively. The results show that UV irradiation and biofilm formation led to different alterations in the surface morphologies and functional groups of PS. The UV-aged 3 μm PS had the strongest inhibitory effect onE. coligrowth, and the bio-aged 10 μm PS had the strongest beneficial effect onE. coligrowth. Also, the ATPase activity, production of intercellular ROS, and MDA content of theE. coliwere affected differently. UV aging enhanced the toxicity of PS towardsE. coli, while bio-aging had an opposite weakening effect. Overall, our research verified the remarkable differences in the physicochemical properties and biotoxicity of PS induced by UV aging and bio-aging.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
·
2025
·
IF 3.6
Junsheng Guo,Wenzong Xu,Jiayan Zhang,Siyu Hou,Lulu Su,Julan Liu
Polyvinyl alcohol (PVA) is a biodegradable, water-soluble polymer with excellent film-forming properties, but its flammability severely limits its applications. A key challenge in PVA functionalization research is enhancing flame retardancy of PVA films. It must be achieved without compromising transparency and mechanical properties. This work presents a novel supramolecular flame retardant, DAD@Ni, containing nitrogen, phosphorus, sulfur, and nickel. It is synthesized via ion-metal ligand coordination and incorporated into PVA to form PVA/DAD@Ni composites. The PVA/10%-DAD@Ni composite's limiting oxygen index (LOI) increased from 19.0% as in pure PVA film to 32.3% and achieved the ideal UL-94 V-0 rating. Meanwhile, its peak heat release rate (PHRR) and total heat release (THR) were reduced by 63.3% and 46.8%. Compared to pure PVA film, PVA/DAD@Ni composites demonstrated excellent UV resistance in the UVA and UVB regions. The investigation revealed that integrating PVA and DAD@Ni, facilitated by a hydrogen-bonded cross-linked network, enhanced mechanical properties while preserving optical clarity in composites. This work presents a feasible method for fabricating multifunctional, flame-retardant, and UV-resistant materials. The PVA/DAD@Ni composites has potential applications in outdoor protective materials, electronic device packaging, safety protective equipment, and other fields.
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2025
·Vol. 30
·期 2
·421
·
IF 4.6
Haiyan Zhang,Qingpeng Wang,Zhiguang Xu,Yan Zhao
Daytime radiative cooling, based on selective infrared emissions through atmospheric transparency windows to outer space and the reflection of solar irradiance, is a zero-energy and environmentally friendly cooling technology. Poly(ethylene oxide) (PEO) electrospun membranes have both selective mid-infrared emissions and effective sunlight reflection, inducing excellent daytime radiative cooling performance. However, PEO is highly water soluble, which makes electrospun PEO membranes unable to cope with rainy conditions when used for outdoor daytime radiative cooling. Herein, we report an in situ UV-crosslinking strategy for preparing PEO electrospun membranes with water resistance for the application of daytime radiative cooling. Acrylate-terminated PEO was synthesized and mixed together with cross-linking agents and photoinitiators to prepare the electrospinning solution. During electrospinning, the nanofibers were irradiated with UV light to initiate the cross-linking. For a membrane with a thickness of 200 μm, the average solar reflectance was 89.6%, and the infrared emissivity (8–13 μm) was 96.3%. Although slight swelling happens to the cross-linked membrane once it comes into contact with water, the fibrous morphology shows no obvious change when prolonging the water soaking time, indicating excellent water resistance. The outdoor cooling performance test results showed that compared to the average temperature of the air in the test box, the average temperature drop in the membrane before and after water soaking was 13.8 °C and 11.5 °C, respectively. Crosslinked PEO-based electrospun membranes with both water resistance and radiative cooling performance may have real applications for outdoor daytime radiative cooling.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2025
·
IF 4.6
Min Sun,Xujie Wang,Lingwei Bu,Yawen Fan,Zihan Guo,Yingying Shan,Xiao Zhu,Lei Hu,Zhengquan Yan
Herein, a novel Bi 3+ -doped Au-Ag quantum dot (Bi 3+ -Au-Ag QD) system was synthesized, by homogeneous reduction method using AgNO 3 , Bi(NO 3 ) 3 ·5 H 2 O and HAuCl 4 ·4 H 2 O as raw materials, for multi-channel detection of S 2− in agricultural foods. Owing to the strong interaction between S 2− and the Ag/Au components, trace amounts of S 2− led to the formation of Ag 2 S or Au 2 S sulphides on the surface of the Bi 3+ -Au-Ag QDs. This surface modification altered the intrinsic fluorescence property of QDs, and their catalytic ability to the oxidization of colourless 3,3′,5,5′-tetramethylbenzidine (TMB) into its blue oxide (oxTMB), resulting in noticeable changes in spectral responses, colour and RGB values. Under optimised experimental conditions, Bi 3+ -Au-Ag QDs were employed successfully for ‘turn-on’ fluorescence, UV–vis and smartphone-assisted red-green-blue (RGB) detection of S 2− in real agricultural food samples. The limits of detection –4.75 × 10 −10 , 6.48 × 10 −9 and 7.22 × 10 −9 mol·L −1 respectively, well met the safety threshold set by the World Health Organization.
✓ 已验证
产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2025
·
IF 3.4
Mengmeng Chen,Wangfei Che,Chen Cui,Qixian Ren,Juanjuan Lu,Yabo Wu
Exploring structure and property modulation strategies is crucial for developing functional crystal materials with superior properties. In this study, Na2ZnCl4·3H2O and Na2ZnCl4·2H2O crystals were synthesized using an aqueous solution evaporation method, and Na2ZnCl4 was synthesized using a high-temperature solution method. By varying the temperature, these compounds exhibit intriguing structural transformations and diverse structures following the removal of the water molecules. All these compounds possess a wide band gap, making them suitable for deep-ultraviolet (DUV) applications. Notably, the theoretical calculation results show that the noncentrosymmetric (NCS) compound Na2ZnCl4·3H2O exhibits a significant nonlinear optical (NLO) coefficient d33 = 1.73 pm/V in its largest direction, as determined by theoretical calculations, which is expected to be a candidate for additional periodic phase (APP) materials. This research provides significant implications for designing short-wavelength optical crystals and suggests that the incorporation of water molecules can significantly alter and enrich the crystal structures.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2024
·Vol. 26
·期 5
·1-14
·
IF 2.1
Liu Zhe-Nan,Liu Lv-Cheng,Xue Jin-Peng,Li Shi-Gang,Li Xing
In this work, we employed L-methionine (L-M) as the functionalized reagent of AuNPs for the colorimetric and UV–vis dual-mode detection of As 3+ , Cd 2+ , and Hg 2+ ions with excellent selectivity and anti-interference. After adding the target ions, the functionalized AuNPs can be cross-linked together due to the As 3+ /Cd 2+ /Hg 2+ ions reacting with amino N, carbonyl or hydroxyl O of L-methionine to form the coordination bonds, resulting in the aggregation of functionalized AuNPs and cause the different red-shifts of the SPR absorption peak and color changes of functionalized AuNPs solutions. The LODs of the colorimetric sensor are 10 ppb/13 ppb/4 ppb by naked eyes and 2.35 ppb/1.68 ppb/0.32 ppb by UV–vis spectroscopy with good linear relationships between the absorbance ratios (A 633nm /A 519nm , A 645nm /A 519nm and A 665nm /A 519nm ) and As 3+ , Cd 2+ and Hg 2+ concentrations, which can be successfully applied to sense and detect As 3+ /Cd 2+ /Hg 2+ pollutants in tap water, pond water, well water, and other domestic water sources. Graphical Abstract
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Zhengtao Wu,Tianhao Chen,Ruiqi Song,Yayun Liu,Bingbin Zhang,Li Jiang,Haitao Wu,Yanmao Dong,Hui Miao,Yan Yuan
Imidazolium ion-based ionic liquids (ILs) have been employed to enhance the dispersion stability of graphene in composite materials, leveraging their π-π conjugation and cation-π interactions with graphene. In this study, a UV-curable ionic liquid monomer (UV-IL monomer), 1-[(6-methacryloyloxy)-hexyl]-3-methylimidazolium chloride, was successfully synthesized and characterized using 1 H NMR and FT-IR spectroscopy. To improve the dispersion stability and electrical conductivity of reduced graphene oxide (rGO), graphene oxide (GO) was chemically modified by grafting with an amino-functionalized ionic liquid, yielding reduced modified graphene oxide (RMGO) through covalent and non-covalent interactions. The resulting RMGO was incorporated into a UV-cured coating to fabricate a conductive sensing material. The conductive mechanism and sensing properties of the coating were systematically investigated. Results demonstrate that the conductivity of the coating arises from the synergistic effect between RMGO and the ionic liquid. The sensing coating exhibited excellent temperature responsiveness, with its response curve following a combined function derived from the Vogel-Tammann-Fulcher (VTF) equation for ionic liquids and the linear resistance-temperature relationship of graphene. These findings highlight the promising potential of this composite for temperature-sensing applications.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Jin-Ling Wu,Hong-Jia Xiang,Rui Zhang,Cheng-Long Wang,Yi-Xin Zhang,Ling Xiao,Zhen-Lin Xu,Hong Wang,Peng Wen
The current anthocyanin-based intelligent pH indicator has poor ultraviolet (UV) blocking performance, which results in color fading and greatly limits its application in freshness monitoring. Lignin nanoparticle (LNP), with aromatic skeleton and phenolic hydroxyl groups, is a promising green alternative to reinforce UV shielding property. Herein, a colorimetry-enhanced and UV-blocking intelligent film encapsulating purple sweet potato anthocyanin (PSPA) and LNP was developed by electrospinning poly (vinyl alcohol) (PVA) and zein. The results revealed that a bead-free and continuous microstructure was obtained for the PVA/Zein/PSPA/LNP-2 film, which also achieved excellent 99.99 % UVA and UVB blocking. Light exposure experiments showed that the incorporation of LNP significantly improved the color stability of PSPA. Besides, the film demonstrated higher tensile strength (26.98 MPa) and elongation at breaks (66.06 %). Furthermore, the nanofiber structure endowed the film with sensitive color responsiveness to detect shrimp freshness with color changing from pink to blue. These results suggested the great potential of developed nanofilm as an intelligent indicator.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Cuixia Wu,Junhui He
It is significant to develop a simple preparation process to obtain a transparent, robust, and superhydrophobic agricultural coating for plant growth. Here, we obtained a sol solution containing fluorinated silica nanoparticles with encapsulated carbon dots (POS-SiO 2 -CDs, ∼50 nm) by co-hydrolysis of tetraethylorthosilicate (TEOS) and 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) under the catalysis of NH 3 ·H 2 O. The sol solution was easily coated onto PE film by spraying to form a transparent UV-to-blue superhydrophobic coating. The POS-SiO 2 -CDs solid powder exhibited blue fluorescence emission (FL) with a quantum yield (QY) of 22.15 % and superamphiphobic properties. We introduced epoxy resin as a binder to improve the mechanical stability of the light-conversion superhydrophobic coating (POS-SiO 2 -CDs/Epoxy). By adjusting the ratio of epoxy resin to POS-SiO 2 -CDs nanoparticles, the optimal coating fabricated via a simple spraying process had a static water contact angle (WCA) of 155° and a rolling angle (SA) of less than 5°. The average transmittance of the coated glass in the visible light range (400–800 nm) reached 80.1 %. Meanwhile, the coating has stable FL emission, good anti-fouling performance, mechanical stability, and excellent flexibility. The rapidly constructed coating without complex modification may provide a potential advantage for manufacturing large-area, robust, superhydrophobic, and self-cleaning agricultural coatings.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Chao Du,Yunfei Ge,Junyi Qian,Zhijie Zhang
Solar-driven CO 2 conversion into reusable carbon forms is an attractive strategy to. reduce CO 2 emissions and provide feedstocks for industrial production. However, most of present catalysts suffer from poor light utilization and rapid charge recombination, thus severely restricting the efficiency of CO 2 photoreduction. Herein, an innovative strategy of integrating Cs 3 Bi 2 Br 9 and MnO 2 via self-assembly was established, with the aim of designing a multimodal photothermal catalyst for CO 2 reduction under full spectrum. In this hybrid, MnO 2 could combine with CBB to create an S-scheme photocatalyst with promoted carrier separation, and simultaneously acted as a “heater” to facilitate CO 2 photoreduction by effective photothermal conversion. Upon UV–vis-NIR illumination, the CBB/MnO 2 hybrid presented an impressively high CO production rate (R CO = 189.75μmol g −1 h −1 ). Theoretical calculations combined with experimental tests indicated that the excellent catalytic activity of CBB/MnO 2 could be ascribed to the synergetic effect of greatly increased carrier transfer and high photothermal conversion efficiency, resulting in considerably enhanced solar-light-driven photothermocatalysis with no extra heat input. The as-proposed catalyst in this study provides a novel and effective approach to develop highly efficient photothermal catalysts for solar-to-fuel 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）