REACTIVE & FUNCTIONAL POLYMERS
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2025
·
IF 5.1
Yukai Huang,Tong Zou,Wenyu Wang,Ruoyu Chen,Qian Jia
In this work, a multifunctional biomimetic self-healing superhydrophobic MOF sponge (HDTMS@UiO-66-NH 2 @PDA@MS) was prepared for efficient oil-water separation and cationic dye wastewater removal. A PDA layer was formed on the surface of the sponge by DA oxidation and self-polymerization, and UiO-66-NH 2 was loaded onto the melamine sponge. To further enhance the hydrophobic properties of the MOF sponge, cetyltrimethoxysilane (HDTMS) is hydrolyzed and condensed to form a non-toxic layer of low surface energy polysiloxane adhesive on the surface of the sponge. The prepared modified sponge exhibited excellent superhydrophobicity (water contact angle of 156.2°), high oil adsorption capacity (73.2–164.7 g/g), and cationic dye removal rate (more than 95 %). Inspired by the self-heal mechanism of the wax layer on plant leaves, the modified sponge and can achieve rapid self-heal at 250 °C after simulated oxidative damage. In addition, the synergistic effects of excellent oil-water separation efficiency, reusability, environmental stability, self-cleaning capabilities make HDTMS@UiO-66-NH 2 @PDA@MS a promising candidate for marine oil spill remediation and oily wastewater treatment.
研究领域:
材料科学
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环境科学
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化学工程
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纳米技术
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表面化学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.5
Xiaojun Fu,Ke Wang,Jingxin Chen,Yonghong Ge,Danshi Zhu,Jianrong Li,Bin Liu,Hongbo Mi
With the escalating environmental concerns associated with non-biodegradable, petroleum-derived materials, the development of eco-friendly coating alternatives has become imperative to replace conventional commercial fruit waxes, such as morpholine-emulsified formulations. This study presented the development and characterization of a composite film composed of titanium dioxide (TiO₂), rice bran wax (RW), and chitosan (CHI), and evaluated the potential of its emulsion as a postharvest coating for fruit preservation. The TiO₂/RW/CHI film exhibited enhanced mechanical and thermal performance, including improved tensile strength and thermal stability, particularly at 0.07% TiO₂. In addition, the film with 0.09% TiO₂ demonstrated favorable water solubility, as evidenced by a contact angle of 38.4°, indicating ease of cleaning from fruit surfaces. Notably, the TiO₂/RW/CHI coating can effectively promote the oxidative degradation of ethylene under ultraviolet irradiation, thereby reducing weight loss, maintaining lower soluble solids content, and delaying textural softening of cherry tomatoes during storage. These results suggest that the TiO₂/RW/CHI emulsion coating is a promising eco-friendly alternative for extending the shelf life and maintaining the quality of postharvest fruits.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD PROCESSING AND PRESERVATION
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2020
·Vol. 44
·期 12
·e14925
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IF 1.405
Hui-Yun Chen,Ling-Feng Jiang,Ji-Hao Zeng,Yan-Rong Huo,Yong-Xin Li
Nanoemulsion has been shown to extend the postharvest life of horticultural produce. In this study, “Fuji” apple were treated with the combination of nanoemulsion coating-1 (NC-1) and 1-methylcyclopropene (1-MCP). Biochemical and nutritional values were assessed every 35 days during 280 days storage at 4°C and 90% RH. Results show that apples treated with the combination of NC-1 and 1-MCP has significantly reduced mass loss and decay, suppressed malondialdehyde (MDA) content. The combination treatment of NC-1 and 1-MCP also retained significantly higher ascorbic acid (ASC), titratable acid (TA), and total soluble solid (TSS) content. NC-1 and 1-MCP treatments alone or in combination produced higher peroxidase (POD) and catalase (CAT) activities but lower phenylalanine ammonia-lyase (PAL) and polyphenol oxidase (PPO) activities than control. Therefore, the combination of NC-1 and 1-MCP preserved better “Fuji” apple quality, which could be used to extend the postharvest life of “Fuji” apple during long-term storage. Practical applications This research work shows that the combined treatment of NC-1 and 1-MCP on “Fuji” apple reduced mass loss, decay and MDA level, retained higher ASC, TA, and TSS content, promoted POD and CAT activities but suppressed PAL and PPO activities, by which preserved better “Fuji” apple qualities during long-term storage. Moreover, the combination of NC-1 and 1-MCP could provide a potential alternative to extend the storage life, which helps in reducing postharvest losses in the supply chain.
研究领域:
采后生理学
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园艺科学
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食品保鲜
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植物生物化学
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农业纳米技术
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.5
Sulafa B.H. Hashim,Haroon Elrasheid Tahir,Amer Ali Mahdi,Mohammad Rezaul Islam Shishir,Gobinath Marappan,Hamza A.M. Abaker,Alaa K.M. Khogly,Halah Aalim,Naymul Karim,Xiaodong Zhai,Shi Jiyong,Zou Xiaobo
This study investigated the effects of mechanical treatments, namely magnetic stirring (S), high-shear homogenization (HS), and ultrasonication (150, 300, and 600 W), on the sugarcane wax-based oil-in-water (O/W) emulsion and its integration into carboxymethyl cellulose (CMC)-based packaging films. The objective was to tackle issues, such as hydrophilic properties in CMC films and wax particle aggregation, by enhancing emulsion characteristics. Of the formulations, S/HS/300 W exhibited superior performance, attaining homogenous particle sizes ≤1 μm, a low polydispersity index (21.12), and a high ζ-potential (−41.55 mV), signifying improved stability. It also showed enhanced thermal stability, reduced crystallinity, and valuable rheology. Incorporating the S/HS/300 W emulsion into CMC films markedly improved water resistance, elevated hydrophobicity (115.5° water contact angle), decreased water vapor permeability by 23%, offered UV light protection dropped by 0%, decreased visible light transmission, and boosted mechanical qualities; the tensile strength rose by 34.2%. This study underscores the efficacy of mechanical processing in the production of high-performance films for sustainable packaging.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Dan Yu,Yushuang Ma,Mingfeng Chen,Xiaoping Dong
Biomass precursors with natural porous structure and multifarious heteroatoms are desirably sustainable precursors for synthesis of carbon materials for energy and environmental applications. Herein, we reported wax gourd based porous carbons (WGPCs) with developed micro/mesoporous structures via potassium hydroxide (KOH) chemical activation . The optimized material that is denoted as WGPC-4 exhibits high specific surface area (2919 m 2 g −1 ) with oxygen and nitrogen contents of 17.9 at.% and 1.0 at.%, respectively. In a three-electrode system, the WGPC-4 electrode presents high specific capacitance of 333 F g −1 at current density of 1 A g −1 . Meanwhile, the assembled symmetrical cell using aqueous electrolyte (0.5 M Na 2 SO 4 ) has high specific capacitance (167 F g −1 at 1 A g −1 ), stable cycling characteristics (93% capacitance retaining after 5000 runs) and excellent energy density of 19.2 Wh kg −1 . Furthermore, these WGPC-4 electrodes were assembled into an all-solid-state supercapacitor using KOH/polyvinyl alcohol (PVA) gel as solid electrolyte , whose specific capacitance is 258 F g −1 at 1 A g −1 , retention at the 2500th run is 87% and energy density is 13.0 Wh kg −1 under a high power density. These materials with excellent structural characteristics are an ideal candidate for high-performance supercapacitors .
研究领域:
材料科学
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能源与环境科学
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DOI
高影响因子
CHINESE JOURNAL OF CHEMISTRY
·
2017
·Vol. 35
·期 4
·497-506
·
IF 1.852
Jiaojiao Zhang,Tianbo Zhao,Yuqiao Chai,Lili Wang
The suspension-like polymerization method is used to obtain poly methyl methacrylate (PMMA)/paraffin wax microcapsules and micro/nanocapsules with high core content. Particle size distribution (PSD) analysis indicates that the average particle size of microcapsules is 94 µm, and the size of micro/nanocapsules ranges in 0.1-19 µm. Differential scanning calorimetry (DSC) and thermalgravimetric analysis (TGA) results show that the fabricated paraffin contents in microcapsules and micro/nanocapsules are as high as 89.5 wt% and 80.2 wt%, respectively with good thermal stability. Thermal cycling tests justify that both the microcapsules and micro/ nanocapsules have good thermal reliability with respect to the changes in their thermal properties after 1000 thermal cycling. This work provides a novel method to prepare microcapsules and micro/nanocapsules with high core content which may benefit further study on thermal energy storage.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yu Fan,Xiaomu Wang,Junying Zhang,Jue Cheng,Qingsong Lian
High encapsulation rate resulting from the good compatibility between cross-linking network and encapsulated solid–liquid phase change materials (SLPCMs) cannot necessarily result in high enthalpy value for the polymeric PCMs. However, the inner mechanism considering the above fact is not clear due to the lack of suitable model compound systems. In this work, a type of epoxy resin with crystalline alkyl side chains (named D18) and four types of amine curing agents (with similar structure but different polarity and molecular size) were primarily used as the model compound to achieve the encapsulation of beeswax (Bw, a kind of bio-based wax), and then the influence of the cross-linking network structure (using different curing agents) on the phase change performances of the D18/Bw polymeric form-stable PCMs (FSPCMs) was systematically studied. The results suggest that polarity effect and steric hindrance effect are the two factors that affect the phase change performances of the polymeric FSPCMs. Though the encapsulation rate of Bw is the highest (near 70 wt%) in the EP H-Y systems (using 1,3-Cyclohexanebismethylamine as the curing agent), it is the EP M-60 sample (using M−Xylylenediamine as the curing agent and containing 60 wt% Bw) that exhibited the highest enthalpy value of 146.2 J/g. Subsequently, different amount of multi-walled carbon nanotubes (CNT) was introduced to improve the thermal conductivity (TC) and achieve multifunctionalization of the EP M-60 sample. The TC, electromagnetic interference (EMI) shielding performance, and contact angle of the 30 wt% CNT modified EP M-60 sample can reach 1.37 W/mK, 37.4 dB, and 137°, while the enthalpy value can remain 101.1 J/g. This work is very helpful in clarifying the relationship between cross-linking network structure and phase change performances of polymeric FSPCMs, so as to providing theoretical guidance for the cross-linking network structure optimization in preparing other reliable polymeric FSPCMs with high enthalpy value, high reliability, and multifunctionalization.
研究领域:
材料科学
·
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
·
2023
·
IF 5.2
Haopeng Zhang,Shisong Ren,Yanjun Qiu
The ethylene-vinyl acetate (EVA) polymers are always doped into waxy bitumen to inhibit network of wax crystals in bitumen. However, the compatibility improvement behaviors between wax-based warm mix (WWM) additives and bitumen by EVA are not clear, and the sustainable components of EVA for corresponding WWM additives to achieve better compatibility improvement are also not determined. This paper investigated compatibility improvement behaviors between commonly used WWM additives and bitumen after the addition of EVA to obtain sustainable components of EVA through experimental method of activation energy of viscous flow (AEVF) and density function theory-molecular dynamic (DFT-MD) calculations. The results show that the repulsions between the end of main-chain with highest electronegativity in WWM additives and polar molecules of EVA can alleviate the aggregation behaviors of WWM additives and EVA displays the best and worst compatibility improvements for additives with shortest and longest carbon chains, respectively. The dispersed asphaltenes combined with EVA can form the composite wax inhibitors (WIs) systems to increase diffusion coefficient and reduce percentage increment values of cohesive energy density (CED) to further disrupt ordered degree of WWM additives. On this basis, the sustainable carbon numbers of main-chain for EVA that are slightly less than average carbon numbers of WWM additives will help to better improve the compatibility of WWM additives. This investigation can provide the inspiration on how to choose the sustainable components of EVA to achieve high-efficiency compatibility improvement for corresponding warm mix asphalts (WMAs) with different average carbon numbers.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Shunjian Qiu,Daogui Liao,Zhiming Wang,Ying Yuan,Qiao You,Yunhua Chen,Chaoyang Wang,Li Zhou,Hongxia Liu
The development of the Internet of Things has increased the anticipation for wearable smart devices in personalized healthcare. Carbon aerogel films, characterized by multifunctional and lightweight porous properties, are emerging as promising components for lightweight smart devices. In this study, we adopt a straightforward, cost-effective approach to fabricate carbon aerogels using cellulose nanofibers (CNF) and graphene (GO) co-stabilized Pickering emulsion, followed by vacuum filtration, freeze-drying, and carbonization treatment. The carbonization process involves the pyrolysis of paraffin wax and the reduction of graphene oxide, resulting in a uniquely porous structure, low density, and remarkable properties related to Joule heating, photothermal conversion, and conductivity sensitivity across a wide range of stresses. Incorporating CRP-30 into a piezoresistive sensor enables real-time monitoring of subtle human activities such as carotid pulse beats, swallowing, and facial expressions. This multifunctional carbon aerogel film holds great promise in the domains of wearable personal thermal management and personal health monitoring.
研究领域:
材料科学
·
生物医学工程
·
可穿戴设备
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产品关联
DOI
高影响因子
Analytical Methods
·
2018
·Vol. 10
·期 16
·1895-1901
·
IF 2.073
Jiawei Li,Pan Li,Minghong Bian,Danqun Huo,Changjun Hou,Hui Qin,Suyi Zhang,Liang Zhang
Cu2+ plays an important role in various fundamental physiological processes in organisms. Although Cu2+ probes have been developed, little research has focused on using a direct redox route to quench fluorescence for Cu2+ detection. Herein, a simple, label-free, cost-effective, and sensitive fluorescence method has been developed for Cu2+ detection. In the absence of Cu2+ and presence of NH3+ and SCN−, H2O2 was employed as an oxidant to corrode BSA–Au NCs, resulting in the disappearance of fluorescence. In contrast, in the presence of Cu2+, red fluorescence was maintained because Cu(NH3)62+ can decompose H2O2. Under optimal conditions, good linear correlation between the fluorescent response and Cu2+ concentrations ranging from 5 to 1250 nM was obtained (R2 = 0.9938). Furthermore, this monitoring method has successfully been applied to real urine, tap water, and sorghum extract samples, demonstrating the potential for field applications. Based on this work, we successfully immobilized BSA–Au NCs on wax-printed paper to accomplish real-time field Cu2+ detection. Fluorescence images were captured under UV light (365 nm), and R-values (red value of RGB color model) were analyzed. The obtained linear relationship between the R-value and the Cu2+ concentration demonstrated the potential of this approach. The developed probe also showed satisfactory selectivity and excellent reproducibility. Although previous methods required a masking agent to protect against interference from increasing Hg2+ concentration, Hg2+ and other interfering ions had a near-negligible effect on results in the present work.
研究领域:
分析化学
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生物医学工程
·
环境科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xiaoxiao Liu,Qian Guo,Yu Li,Yue Ma,Xiaotao Ma,Panpan Liu,Donghong Duan,Zhonglin Zhang,Xianxian Zhou,Shibin Liu
The lithium-sulfur battery (Li-S) has been considered a promising energy storage system, however, in the practical application of Li-S batteries, considerable challenges remain. One challenge is the low kinetics involved in the conversion of Li 2 S 4 to Li 2 S. Here, we reveal that highly dispersed Ni nanoparticles play a unique role in the reduction of Li 2 S 4 . Ni-porous carbon (Ni-PC) decorated in situ on a free-standing carbon nanotube sponge (CNTS/Ni-PC) enriches the current response of liquid phase Li 2 S 4 and Li 2 S 2 around the cathode more than 8.1 and 5.7 times higher than that of the CNTS blank sample, respectively, greatly boosting the kinetics and decreasing the reaction overpotential of Li 2 S 4 reduction (lower Tafel slope and larger current response). Thus, with the same total overpotential, more space is provided for the concentration difference overpotential, allowing the more soluble polysulfide intermediates farther away from the surface of the conductive materials to be reduced based on the “wane and wax” strategy, and significantly improving the sulfur utilization. Consequently, S@CNTS/Ni-PC delivers excellent rate performance (812.4 mAh·g −1 at 2C) and a remarkable areal capacity of 10.1 mAh·cm −2 . This work provides a viable strategy for designing a target catalyst to enhance the conversion kinetics in the Li 2 S 4 reduction process.
研究领域:
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xinpeng Hu,Xianrong Huang,Bingqing Quan,Chuanbiao Zhu,Youqiang Yang,Mengjie Sheng,Chao Ding,Haoye Wen,Xiaolong Li,Jingang Wei,Hao Wu,Xiang Lu,Jinping Qu
Bioinspired fabrication of high thermal conductivity phase change composites has great prospects for efficient thermal management. However, the direct and partial imitations of nature are not facile to the full realization of natural systematic advantages and scalable production. Herein, inspired by the tree’s transportation system, this study adopted a bottom-up strategy to mimic the tree’s sophisticated hierarchy at both micro and bulk dimensions. The composites employed a phloem-mimic crosslinking ethylene–vinyl acetate copolymer/paraffin wax (EVA/PW) film as the intelligent heat storage and release medium, and the xylem-imitated roll-to-roll directional EVA/expanded graphite (EVA/EG) film with enhanced high thermal conductivity (51.1 W m −1 K −1 with the enhancement of 26,894 %) as fast heat conduction pathway. Above two components were assembled to develop phase change composites (PCCs) with annual-ring and multilayered structures. Both computational and experimental results revealed that the assembled tree-inspired structures significantly improve the heat conduction performances of PCCs. The tree-inspired PCCs showed significantly high thermal conductivity (7.01 W m −1 K −1 with the enhancement of 2821 %) with a low filler content (9.0 vol%). Meanwhile, obtained PCCs with high phase change enthalpy exhibited excellent temperature regulation performance. This work offers a promising route for the scalable manufacture of advanced PCCs for efficient thermal management, and a general strategy to realize the natural systematic advantages via the bottom-up strategy.
研究领域:
材料科学
·
热管理工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）