INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Xiuli Wu,Xiangxuan Yan,Bingqian Zhang,Qing Zhang,Xiaojia Zhang,Jianwen Zhang,Xuexu Wu
Insufficient hydrophobicity and mechanical properties pose significant challenges in the development of starch-based degradable films. This study prepared modified (crosslinked, acetylated, and crosslinked & acetylated) cassava starch films, and different concentrations of strengthening agents (polyvinyl alcohol, sodium alginate, gelatin, and hyaluronic acid) were added to produce modified starch composite films. The physical properties, structure characteristics, and degradability of these films were systematically evaluated. The dual-modified (crosslinked & acetylated) starch film exhibited superior hydrophobic properties (contact angle = 90.04°), and the addition of strengthening agents significantly enhanced the tensile strength of the composite films ( p < 0.05). Fourier transform infrared spectra confirmed that the strengthening agents interacted with starch through hydrogen bonding. Additionally, the hyaluronic acid-starch composite film exhibited the most rapid degradation in soil (53 % weight loss after 30 days of storage) and achieved the highest comprehensive score for physical properties. This film combined exceptional hydrophobicity and mechanical properties, making it an ideal candidate for food packaging applications. These findings suggest that the hyaluronic acid-starch composite film has broad potential applications in the field of degradable food packaging films.
研究领域:
食品科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2024
·
IF 5.6
Hui Chang,Sameh A. Korma,Jian Chen,Tao Yang
Traditional packaging materials easily cause white pollution, developing green biological packaging is highly important for environmental sustainability. In this study, double-modified tapioca starch (DMTS) was prepared and characterized. Further, clove essential oil (Ceo) at concentrations of 0.5 %/0.75 %/1.0 %/1.25 % (wt%) was loaded into the DMTS film matrix to develop an applicable active packaging material. XRD analysis and FT-IR results revealed that esterified starch was successfully prepared, the DM/CS/Ceo films had a dense intermolecular network, and the Ceo was successfully incorporated into the polymer matrix. The performance test results demonstrate well-performing mechanical, hydrophobic, and antioxidant properties of Ceo series composite films. Specifically, the EAB of the 1.25 % Ceo film increased by 10.7 %, the water contact angle increased by 18.89°, and the DPPH free radical clearance increased by 12.79 times compared to that of the DM film. In addition, the inhibition rates of the 1.25 % Ceo film against Escherichia coli and Staphylococcus aureus reached 86.51 % and 86.84 %, respectively. These results indicate that Ceo films have tremendous potential application value in prolonging food storage life.
研究领域:
食品科学
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材料科学
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环境科学
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DOI
高影响因子
Journal of Materials Chemistry A
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2023
·Vol. 11
·期 35
·18872-18880
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IF 11.9
Ningyun Hong,Jianwei Li,Shihong Guo,Huawei Han,Haoji Wang,Xinyu Hu,Jiangnan Huang,Baichao Zhang,Fang Hua,Bai Song,Nesrin Bugday,Sedat Yasar,Serdar Altin,Wentao Deng,Guoqiang Zou,Hongshuai Hou,Zhen Long,Xiaobo Ji
O3-type NaNi1/3Fe1/3Mn1/3O2 (NFM) is one of the most representative cathode materials with low cost and high capacity advantages. However, the sluggish diffusion kinetics and severe cathode–electrolyte interfacial reaction are serious roadblocks to commercialization. Hereby, a novel method of in situ V-modification is well-designed to play dual roles in reconstructing the crystal lattice and interface structure. Notably, the broadened layer spacing of O–Na–O and shortened TM–O bond are attributed to successful doping of V5+ into the bulk, accelerating the transmission of sodium ions and improving the structure stability. Concomitantly, the construction of a thin surface coating layer is beneficial for mitigating volume expansion and inhibiting structural degradation, which is validated by in situ X-ray diffraction coupled with the synchrotron X-ray absorption spectroscopy. Consequently, the rationally designed V-modified NFM cathode exhibits excellent cycling performances, exhibiting great capacity retention of 75.8% after 500 cycles at 2C in a half cell, and 85.6% capacity retention is observed after 150 cycles at 1C in the full cell. This work provides new insights into the development of O3-type layered oxide cathodes toward long-cycle life applications for large-scale energy storage systems.
研究领域:
材料科学
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电化学
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DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
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2024
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IF 7.4
Yanjun Sun,Qin Chen,Xiao Zhang,Yangbao Ma,Yihang Wu,Zixu Guo,Haiyan Tan,Long Bai,Siqi Huan,Jiyou Gu
Natural fibers are promising as enhancements for gypsum. Herein, the effect of using untreated, NaOH-modified, and dual-modified hemp fibers on enhancing performances of gypsum composites is examined. The dual-modification strategy applies secondary treatment on NaOH-treated fibers with NaClO, polyoxyethylene, or Tween-80. The fibers and composites are characterized by SEM, ATR-FTIR, XRD, mechanical strength, etc. The secondary modification enhances interfacial compatibility between gypsum and fibers. Compared with pure gypsum, the elastic modulus and bending strength of the composites with dual-modified fibers increase by 56% and 42%, respectively. Hydration process reveals that dual-modification using polyoxyethylene contributes to form dense, compact composite structures.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Yufeng Fu,Ao Xie,Yujing Guo,Peng Song,Jinyuan Miao,Linting Cheng,Chenxi Zhu,Weijian Han,Zhiqun Bai,Yongmei Chen,Pingyu Wan,Yang Tang
Water electrolysis powered by renewable energy is widely regarded as one of the most important methods for large-scale green hydrogen production. In this work, we have prepared a high-valence gallium-doped nickel-molybdenum nitride nanocomposite (Ga-Ni/Mo 3 N 2 @C) with abundant heterojunctions by a co-precipitation step and a subsequent high-temperature treatment step. The produced Ga-Ni/Mo 3 N 2 @C material benefits from a dual modification strategy (DMS) including the Ga doping-induced internal electronic construction and the carbon shell encapsulation-derived external corrosion inhibition. This DMS not only facilitates the modulation of the intrinsic activity of Ni and Mo constituents, but also strengthens the durability of the Ni/Mo 3 N 2 active components. In hydrogen evolution reaction (HER) test, Ga-Ni/Mo 3 N 2 @C exhibits ultra-low overpotentials of 9 mV at 10 mA cm −2 and 116 mV at 100 mA cm −2 , small Tafel slope of 41.2 mV dec −1 , high conductivity of 114.8 μS cm −1 and low charge transfer resistance of 0.729 Ω cm 2 . Moreover, the Ga-Ni/Mo 3 N 2 @C electrocatalyst exhibits an ultralow Arrhenius activation energy of 14.69 kJ mol −1 , lower than those of Ni/Mo 3 N 2 (20.78 kJ mol −1 ), commercial Raney Ni (41.40 kJ mol −1 ) and Pt/C catalyst (15.24 kJ mol −1 ). The Ga-Ni/Mo 3 N 2 @C-assembled electrolyzer exhibits a lower cell voltage of 1.80 V than the counterpart cells with commercial Raney Ni (2.05 V) cathode or Ni/Mo 3 N 2 (1.85 V) cathode at 3000 A m −2 and room temperature, showing negligible deterioration in performance. The utilization of high-valence Ga atoms doping and carbon shell protection effect not only modulates material electronic structure to accelerate reaction kinetics, but also inhibits the dissolution of active sites. It is believed that this study offers a novel strategy for the development of high-performance electrocatalysts in water electrolysis.
研究领域:
能源材料
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电化学
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催化
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纳米技术
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可再生能源
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xiuli Wu,Xiangxuan Yan,Jianwen Zhang,Xuexu Wu,Qing Zhang,Bingqian Zhang
This study aims to enhance the physical properties and color stability of anthocyanin-based intelligent starch films. Three dual-modified starches, namely crosslinked-oxidized starch (COS), acetylated distarch phosphate (ADSP), and hydroxypropyl distarch phosphate (HDSP), were utilized as film matrices. Aronia melanocarpa anthocyanins were incorporated through three different pre-treatments (free, spray-drying microencapsulation, and freeze-drying microencapsulation) to assess the prepared films' functionality, stability, and applicability. The results indicate that the ADSP film exhibited an approximately two-fold increase in elongation at break (EAB) compared to native starch film. Specifically, the ADSP film's water contact angle (WCA) reached 90°, demonstrating excellent flexibility and hydrophobicity. Scanning electron microscopy (SEM) revealed stronger interactions between anthocyanins and the film matrix after microencapsulation. Furthermore, after 30 days of exposure to 37 °C heat and light radiation, the freeze-dried anthocyanin-based intelligent film (FDA film) exhibited minimal fading, displaying the highest stability among the tested films. Notably, during beef freshness monitoring, the intelligent films underwent significant color changes as the beef deteriorated. In conclusion, the developed FDA film, with its outstanding stability and responsive pH characteristics, holds immense potential as a novel packaging material for food applications.
研究领域:
材料科学
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食品科学
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生物技术
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产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
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2025
·
IF 7.3
Zihan Zhao,Chunfeng Li,Lei Le,Mingli Liu,Zhihao Zhang
The expanding application of corn stalk/polypropylene composites (CPCs) is accompanied by increasingly stringent performance requirements. Consequently, endowing flame retardancy, smoke suppression, and multifunctionality to CPCs while maintaining their mechanical properties is significant. Herein, a biobased flame retardant, arginine/ZIF-67 dual-modified ammonium polyphosphate (APP-Arg-MOF; MOF, metal–organic framework), for CPCs was engineered. APP was first functionalized with Arg via ion exchange to enhance its compatibility and flame retardancy. Subsequently, ZIF-67 was uniformly grown on APP-Arg through coordination-driven assembly using cobalt ions and 2-methylimidazole. The experimental results explained the exceptional multifunctional enhancement. The CPC/APP-Arg-MOF composite achieved a limiting oxygen index of 29.2% and passed the UL-94 V-0 rating. Cone calorimetry revealed significant reductions in the peak heat release rate (63.1%), total heat release (21.9%), and total smoke production (34.7%). Remarkably, the bending and tensile strengths increased by 10.0% and 26.9%, respectively, relative to CPC/APP, attributed to improved interfacial compatibility via Arg and ZIF-67 nanostructures. Furthermore, the CPC/APP-Arg-MOF composite exhibited potent antimicrobial activity, with inhibition rates of 97% against E. coli and 99% against S. aureus, leveraging synergistic effects of Arg and Co2+ release from ZIF-67. Meanwhile, the composite also maintained flame-retardant and antibacterial properties after 200 h of UV aging. Therefore, this work presents a sustainable APP surface modification strategy by utilizing Arg and ZIF-67 to simultaneously enhance fire safety, smoke suppression, and mechanical, antimicrobial, and anti-UV aging performances of CPC, offering significant potential for CPC applications.
研究领域:
高分子复合材料
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阻燃化学
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材料科学
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表面改性
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功能材料
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生物基材料
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产品关联
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2022
·
IF 5.477
Ruilian Li,Yujiao Wen,Meng Liu,Lezhu Su,Yifan Wang,Shikai Li,Mei-e Zhong,Zhi Zhou,Nan Zhou
Background In this study, double modified biochar was prepared to remove organic matter and heavy metals at the same time. It has high removal efficiency for organic matter even in actual irrigation water. Methods Tobacco stem was used as carbon-based carrier, modified with polyacrylic acid (PAA) rich in oxygen functional groups (OFGs) and transition metals (iron and cobalt) with excellent catalytic activity. After mixing them evenly, the in-situ double modified biochar (BC PAA @CFO) of OFGs and CoFe 2 O 4 (CFO) was obtained by one-step hydrothermal carbonization (HTC). Significant findings BC PAA @CFO in QNC-Pb 2+ composite system, CFO can quickly activate peroxymonosulfate (PMS), and the degradation efficiency of quinclorac (QNC) is as high as 80.7%. Free radical quenching experiments and electron paramagnetic resonance (EPR) analysis indicated that SO 4 · − , ·OH, ·O 2 − and 1 O 2 were the main active species involved in the degradation of QNC. At the same time, the rich OFGs make the adsorption efficiency of Pb 2+ reach 73.2% within 4 h. FT-IR results further confirmed that the dominant role of adsorption should be OFGs. In general, this in-situ double modified BC PAA @CFO obtained by one pot HTC is a promising purifying agent for mixed pollutants.
研究领域:
环境科学
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水处理
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污染物去除
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生物炭改性
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Quanling Xie,Shishen Zhang,Zhuan Hong,Hanjun Ma,Birong Zeng,Xiao Gong,Wenyao Shao,Qiuquan Wang
A novel double-modified strategy by introducing sulfonated graphene (SG) and maleic anhydride modified graphene oxide (MAH-GO) nanofillers into the supporting layer and selective layer, respectively, was adopted to develop high-performance thin-film nanocomposite (TFN) nanofiltration (NF) membrane. First, the supporting layer was successively modified by investigating the impacts of sulfonated PSU and SG on the morphologies, properties and performance of the supporting membranes and the resultant thin-film composite (TFC) NF membranes. The results indicated that the structures and properties of supporting layers had significant influences on the resultant polypiperazine-amide (PPA) TFC NF membranes. The pristine PSU support exhibited a large surface pore size, medium porosity and strong hydrophobicity, which generated a low-flux PPA-TFC NF membrane. After modification with SPSU and SG, the optimal PSU-SPSU-SG blend support showed a small surface pore size, high porosity and improved hydrophilicity, which resulted in favor of the formation of a defect-free TFC NF membrane with a relatively high flux. Using the optimal PSU-SPSU-SG blend support, the further incorporation of MAH-GO nanofillers into the selective layer led to a thinner, smoother and more strongly hydrophilic TFN NF membrane with enhanced negative charge. The double-modified TFN NF membrane showed the superior permeaselectivity, anti-fouling ability and chlorine resistance over the conventional PPA-TFC NF membrane. Notably, without sacrificing the high salt rejection, the maximum water flux significantly reached 85.8 L m −2 h −1 equal to 264.8% of PPA-TFC membrane. This novel double-modified strategy shows a great potential in developing high-performance TFN NF membranes.
研究领域:
材料科学
·
环境工程
·
膜技术
✓ 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）