MOLECULES
·
2025
·Vol. 30
·期 6
·1306
·
IF 4.6
Yu Ren,Rui Luan,Ziyao Zhao,Lina Tang,Chunxia Wang,Yuehui Li,Meixian Li
To fabricate recyclable catalytic materials with high catalytic activity, Se4+@TiO2photocatalytic materials were synthesized by the sol–gel method. By introducing free radicals on the surface of polyester (PET) fabrics through plasma technology, Se4+@TiO2/PET composite photocatalytic materials with high photocatalytic activity were prepared. The surface morphology, crystal structure, chemical composition, and photocatalytic performance were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet–visible absorption spectroscopy (UV–Vis), and photoluminescence spectroscopy (PL), respectively. The photocatalytic degradation performance was determined by assessing the degradation of azo dye methyl orange under simulated solar irradiation. The results demonstrated that Se4+@TiO2/PET exhibited a superior degradation rate of methyl orange, reaching up to 81% under simulated sunlight. The PL spectra indicated that the electron–hole pair separation rate of Se4+@TiO2/PET was higher than that of TiO2/PET. Furthermore, UV–Vis spectroscopy demonstrated that the relative forbidden band gap of Se4+@TiO2/PET was determined to be 2.9 eV. The band gap of Se4+@TiO2/PET was narrower, and the absorption threshold shifted toward the visible region, indicating a possible increase in its catalytic activity in simulated solar irradiation. In addition, the antibacterial properties of Se4+@TiO2/PET were subsequently investigated, achieving 99.99% and 98.47% inhibition againstS. aureusandE. coli, respectively.
研究领域:
材料科学
·
环境科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2017
·Vol. 312
·期 3
·599-607
·
IF 1.282
Liu Guiqing,Wang Wei,Lin Jianguo,Li Ke,Lv Gaochao,Zhao Xueyu,Wang Shanshan,Luo Shineng,Qiu Ling
16α- 18 F-fluoroestradiol ( 18 F-FES) has been developed as a promising positron emission tomography (PET) imaging agent for targeting estrogen receptor positive (ER + ) breast cancer in the clinical trial. However, the radiosynthesis of 18 F-FES often requires two steps and tough experimental conditions. Therefore, a new estradiol derivative ( 18 F-AmBF 3 -ES) was prepared by an efficient one-step 18 F-radiolabeling method. The tracer was obtained in high yield (~65%) and excellent radiochemical purity (>98%) within 30 min. The uptake rate of 18 F-AmBF 3 -ES in ER + cells was about 3.5% at 30 min. The results suggested that the tracer may be a potential PET imaging agent for ER + breast cancer.
研究领域:
医学影像学
·
肿瘤学
·
核化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jie Zhong,Shuang Yan,Yanling Yu,Guihao Hu,Wei Chen,Haiyu Wang,Wenxue Li,Jinping Yuan,Suping Li,Xinghui Li,Xiaoming Zhang,Changqiang Wu
Radiolabeled superparamagnetic iron oxide nanoparticles (SPIONs) have gained significant attention for their potential in dual-modality imaging, combining positron emission tomography (PET) and magnetic resonance imaging (MRI). The integration provides clinicians with enhanced and complementary imaging information, improving the accuracy of disease diagnosis. However, the complexity of ligand synthesis for functionalization and stable radiolabeling and the difficulty in achieving controlled large-scale production with consistent nanoparticle quality, both of which limit their potential in clinical applications. To overcome these limitations, we report a novel method for preparing SPIONs utilized a simple dual-chelation functional ligand and a continuous synthesis approach to facilitate their clinical translation. The functionalized SPIONs were successfully synthesized by using a flow synthesis technique and the dual-chelation functional ligand (PAsp- g -DA/EA). Compared with traditional synthesis methods, this approach enabled mass production with high reproducibility. The obtained SPIONs showed ultra-small sizes (5.1 ± 0.1 nm), good monodispersity, excellent relaxivity, and superior biocompatibility. The dual-chelation functional ligand enabled direct and efficient radiolabeling of SPIONs with [ 64 Cu]Cu 2+ achieving over 80 % efficiency and outstanding labeling stability. After intravenous injection into rats, high-quality PET and MRI images were obtained. Furthermore, both PET and MRI demonstrated significant nanoprobe accumulation in tumor-bearing mice. In this study, a dual-chelation functional ligand was employed to facilitate the batch and reproducible synthesis of directly radiolabelable SPIONs, thereby addressing key challenges associated with the clinical translation of PET/MRI dual-modality nanoprobes. The nano-probes developed demonstrate excellent biocompatibility, superior imaging efficacy in both PET and MRI, making them potential candidates for medical PET/MRI dual-modality probes.
研究领域:
医学影像学
·
纳米医学
·
放射化学
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2025
·
IF 6.3
Yifei Ding,Wenxun Sun,Hongwei Gao,Ruiyu Zhang,Xiaobin Yang,Yongping Bai,Shuai Sun
High-transmittance polyester films are critical for advanced display technologies, yet the relationship between catalyst design and optical performance remains poorly understood. This work investigates seven metal-based catalysts and develops an economical and efficient composite catalyst accordingly. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies of these catalysts are calculated using density functional theory (DFT) method. Results demonstrate that catalysts with lower LUMO energy levels can significantly promote nucleophilic attack during polycondensation, consequently exhibiting superior catalytic efficiency. Subsequently, we prepare a composite catalyst composed of cobalt(II) acetate tetrahydrate and germanium(IV) oxide. By employing the composite catalyst, the synthesized PET films achieved promising transmittance of 91.43 % and luminosity of 92.82 %. This study provides a DFT-driven strategy for designing optical polyesters, offering a scalable approach for advanced display applications.
研究领域:
材料科学
·
化学工程
·
计算化学
·
高分子科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2020
·
IF 4.032
Ali Reza Kamali,Jigang Yang
The effective disposal and/or utilization of polyethylene terephthalate ((C 10 H 8 O 4 ) n , PET) waste plastics are currently global problems that need to be addressed urgently. The current research examines the molten salt-based thermal treatment of PET waste, as a new approach to tackle this challenge. The effect of various molten salts, comprising KCl, MgCl 2 , ZnCl 2 , NaCl , KF and NaF on the structural and morphological evolution of PET upon heating in air to 1300 °C is investigated. PET is transformed into carbon materials with different characteristics, including graphene-like nanosheets and porous nanostructures , with different electrical conductivity values, depending on the type of salt employed. The melting and evaporation points, as well as the cation size of the salt, are found to have a significant influence on the morphology and the crystallization level of the carbon products, based on which the characteristics of PET-derived carbons are regulated. Accordingly, the crystallinity and graphitization degree of the carbon materials obtained in NaF, KF and NaCl are found to be considerably greater than those obtained in ZnCl 2 , MgCl 2 and KCl. The possible mechanism involved in the conversion of PET into carbon nanostructures in the molten salt environment is discussed. The results obtained provide insights into molten salt conversion of PET into carbon materials with different properties for various applications.
研究领域:
材料科学
·
环境科学
·
纳米技术
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Shu-Huan Chen,Huma Javeria,Xu-Hui Sun,Zhen-Xia Du
With the proliferation of vehicles in households, people are spending more and more time in their cars, so it is important to ensure the air quality and safety of the car. In this research, environmentally friendly, green PET@PDA@MIL-101(Fe) (PPM) was prepared by in-situ solvothermal growth and acid etching methods, which was categorized by SEM, FTIR, XRD, XPS, and BET. PPM was used to adsorb benzene, toluene, and m-xylene at low concentrations. The maximum amount of adsorption of PET@PDA@MIL-101(Fe) (PPM) for benzene, toluene, and m-xylene was 68.72 mg/g, 91.63 mg/g, and 78.47 mg/g respectively. The adsorption process of PPM is well fitted by the pseudo-first-order kinetic model and Langmuir isothermal adsorption model. Furthermore, PPM exhibited excellent toluene removal performance in simulated vehicles and excellent cycling capability in adsorption-desorption experiments. As a result, PPM can be used to treat and manage toluene volatile organic compounds (VOCs) at low concentrations.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Shuhui Wei,Ali Reza Kamali
A nanostructured core-shell composite (Ni 0·4 Fe 2·6 O 4 /(Fe,Ni)@carbon, NFC) comprising magnetic nano-cores encapsulated with graphitic shells (≈80 wt%) is prepared by facile and clean mechanochemical-molten salt processing approach using waste PET ; providing a specific surface area of 201.9 m 2 g −1 , well-developed mesopores, and ferromagnetic behavior characterized by the coercivity value of 149 Oe. NFC is utilized as a high-performance adsorbent for the removal of organic dyes from their aqueous solutions. Moreover, the magnetic performance of NFC enables the facile collection of the exhausted adsorbent out of the purified water. Performances of NFC for the removal of crystal violet dye (CV), methyl orange (MO) and rhodamine B (Rh B) from their aqueous solutions are systematically investigated under different environmental conditions including the adsorbent dosage and dye concentration, as well as the solution pH and temperature, where an impressive CV removal capacity of 201.6–243.8 mg g −1 is recorded for a wide pH range of 2–10. Mechanism and kinetics involved in the adsorption process are investigated by studying the adsorption isotherms and thermodynamics. The dye adsorption of the nanocomposite material is confirmed to follow the pseudo-second-order kinetic model combined with the Langmuir isotherm model, exhibiting an excellent spontaneous and exothermic monolayer adsorption capacity of around 153 mg g −1 (for MO) for the fresh adsorbent and around 89 mg g −1 after three adsorption-regeneration cycles.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER
·
2025
·
IF 4.5
Hong Lei,Yang Qiu,Zhijuan Pan,Bin He,Tao Yan
The development of conductive polyester (PET) fibers is of great significance in increasing their added value and application in functional textiles. However, the continuous preparation of conductive PET fibers with high strength and durability is still a challenge. In this work, polypyrrole/waterborne polyurethane (PPy/WPU)/PET composite conductive fibers (PWPFs) were continuously prepared by in-situ polymerization of blended pyrrole (Py)/WPU. The study investigated the effects of alkali concentration and treatment time on the moisture regain rate of PET fibers to improve the hydrophilicity. The effects of polymerization cycles and mass fraction of WPU on the microstructure and electrical property of PWPFs were studied. The result demonstrated that the moisture regain of PET fibers increased from 0.45 % to 1.13 % when treated in a 50 g/L NaOH solution for 6 h. A stable composite structure of WPU/PPy was formed on the surface of conductive PET fibers, prepared with 5 polymerization cycles and a WPU mass fraction of 5 wt%, achieving a resistance of 58.41 kΩ/cm. The PPy/WPU composite conductive layer partially compensated for the mechanical properties lost by PET fibers during alkaline treatment. Notably, the abrasion resistance and washing resistance of PWPFs were excellent. The conductivity of PWPFs was highly correlated with the environmental humidity, temperature, salinity, and ultraviolet light irradiation and recoverable when environmental conditions underwent cyclic changes, which demonstrated that the PWPFs could be used for multi-functional sensing applications.
研究领域:
材料科学
·
高分子科学
·
纺织工程
·
传感技术
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Zheng Xiong,Haiyang Yu,Xiao Gong
This study demonstrates a simple and fast method to integrate superhydrophobicity, UV protection, and photothermal effect onto PET fabrics. The surface of PET fabric forms a hierarchical rough structure through in situ oxidative polymerization of the pyrrole (Py). The 1,4-conjugate addition reaction between pentaerythritol tetraacrylate, 3-aminopropyltriethoxysilane, and octadecyl acrylate not only endows the PET fabric with superhydrophobicity but also forms a cross-linked network structure which improves the stability of multifunctional coatings on the surface of the PET fabric. In addition, the wettability of the prepared PET fabric is investigated by adjusting the Py monomer and octadecyl acrylate concentration. The results reveal that the prepared PET fabrics exhibit obviously superhydrophobic behavior with a contact angle of 155.8°. The surface temperature of the superhydrophobic PPy/PET fabric can rise to 91 °C under a simulated sunlight which is much higher than the pristine PET fabric, while reaching basically the same steady-state in five heating/cooling cycles. The prepared PET fabric also possesses excellent self-cleaning, UV shielding, and solar light absorption performances. Furthermore, the superhydrophobic PET fabric exhibited excellent stability against 180 °C high temperature, strong UV radiation, different pH solutions and organic solvent erosion, 8 h washing tests, and 25 sandpaper abrasion cycles. These findings provide a path for the future development of multifunctional fabrics using fluorine-free environmentally friendly materials.
研究领域:
材料科学
·
纺织工程
·
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 20
·5126
·
IF 3.1
Ke-Ke Yu,Tai-Qi Zhao,Qi-Ling Luo,Yang Ping
Three-dimensional printed concrete (3DPC) is increasingly recognized in the construction industry for its high design flexibility and the elimination of conventional formwork. However, weak interlayer adhesion remains a significant challenge. The potential of recycled polyethylene terephthalate (PET) fibers for reinforcing 3DPC is being explored, driven by their environmental sustainability and economic advantages. However, there is an inadequate interfacial adhesion between these recycled fibers and the 3DPC matrix. This study investigated the use of dopamine modification to address this issue and enhance the interlayer adhesion of fiber-reinforced 3DPC. Recycled PET fibers were surface-modified using dopamine treatment, forming a polydopamine (PDA) film that improved surface roughness and hydrophilicity. Both unmodified and modified fibers were incorporated into 3DPC at various volume fractions (0.1%, 0.3%, 0.5%). The effects on interlayer adhesion strength, compressive strength, and flexural strength were systematically evaluated and compared. The results showed that the inclusion of 0.3 vol% dopamine-modified fibers resulted in a 22.5% increase in interlayer adhesion strength compared to the control group, and a 14.8% improvement over unmodified fibers at the same content. Additionally, the compressive strength and flexural strength of 3DPC with 0.3 vol% MPET fibers increased by 22.5% and 27.6%, respectively, compared to the control group. Microstructural analysis using SEM and XRD revealed that the dopamine modification significantly improved the interfacial adhesion between fibers and the concrete matrix, explaining the superior performance of modified fibers. This study demonstrates that recycled PET fibers modified with dopamine can effectively enhance the interlayer adhesion of 3DPC. The findings affirm that surface modification techniques can significantly elevate the utility of recycled PET fibers in 3DPC, contributing to the sustainable advancement of construction materials.
研究领域:
土木工程
·
材料科学
·
可持续建筑
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Eco-Environment & Health
·
2025
·Vol. 4
·期 2
·100139
·
IF 17.6
Minghao Zhang,Yijin Lu,Zhuo Wang,Xiong Gao,Xuanhang Luo,Xin Shen,Weixiang Wu,Qingqing Mei
Ionic liquid-catalyzed methanolysis emerges as an efficient technique for transforming PET into premium-grade dimethyl terephthalate (DMT). However, incomplete depolymerization remains a major obstacle to the further industrial application of IL-catalyzed PET methanolysis. The proposed method utilized dimethyl carbonate (DMC) as the solvent for the complete methanolysis of waste PET under mild conditions, resulting in pure DMT and ethylene carbonate (EC) within 2.5 h. The use of 1-ethyl-3-methylimidazolium acetate ([EMIm][OAc]) as the IL catalyst significantly enhanced the reaction efficiency. Spectroscopic analyses using 1 H NMR and FT-IR confirmed the pivotal role of [EMIm][OAc] in establishing multiple hydrogen bonds with the reactants (PET, DMC, and MeOH) and the intermediate [ethylene glycol (EG)] during the catalytic process. This catalytic system exhibited remarkable performance, achieving complete conversion of PET, which resulted in the production of DMT and EC with yields of 99% and 91%, respectively. Moreover, this versatile approach is applicable to the upcycling of a wide variety of commercial polyesters and polycarbonates, underscoring its potential as a comprehensive solution for plastic waste management.
研究领域:
应用化学
·
高分子科学
·
绿色化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2019
·
IF 4.916
Yusheng Wang,Xiaoqi Wang,Wei Lu,Qingpan Yuan,Yourong Zheng,Bo Yao
In this work, a thin film PET based gold electrode (PGE) glucose sensor was fabricated through ultraviolet mediated chemical plating technique. Compared with the most existing wearable thin film gold electrode sensors, the PGE-glucose sensor is simple, low cost and minimum instrumentation was required. The proposed glucose sensor revealed a sensitivity of 22.05 μA mM −1 cm −2 in a linear range from 0.02 to 1.11 mM with a low detection limit of 2.7 μM (S/N = 3). The PGE-glucose sensor had a good selectivity and was not interfered by lactic acid, urea, acetaminophen, uric acid , dopamine and ascorbic acid . Additionally, it exhibited good reproducibility and long-term stability over four weeks. Finally, the disposable PGE-glucose sensor was successfully applied to determine the glucose in sweat and commercial beverage accurately.
研究领域:
电化学
·
生物传感器
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）