CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Yan Zhang,Qun Tang,Kangqi Huang,Zongshu Xu,Shaoxiong Feng,Heping Li,Zhiming Zou
There is a growing demand for the development of intelligent active packaging films to maintain and monitor the freshness of meat food . Herein, nano Co-based MOF (ZIF67) with ammonia-sensitive and antimicrobial functions was successfully synthesized and then integrated into cellulose acetate (CA) matrix to prepare intelligent active films. The impacts of ZIF67 incorporation on the structure, physical and functional characteristics of CA film were fully investigated. The results demonstrated that the ZIF67 nanofillers were evenly dispersed in CA matrix, resulting in remarkable improvement on tensile strength , toughness, thermal stability , UV barrier, hydrophobicity and water vapor barrier ability of CA film. Furthermore, the prepared CA/ZIF67 films exhibited superb antimicrobial and ammonia-sensitive functions. The CA/ZIF67 intelligent films turned their color from blue at beginning to brown during progressive spoilage of shrimp . These results revealed that the CA/ZIF67 films with excellent antimicrobial and ammonia-sensitive functions could be applied in intelligent active food packaging.
研究领域:
食品科学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2022
·
IF 4.132
Hongni Wang,Xiaoqian Li,Fangfang Su,Jinliang Xie,Yangyang Xin,Weirui Zhang,Chen Liu,Dongdong Yao,Yaping Zheng
Despite many important industrial applications, epoxy resin (EP) suffers from high flammability and toxicity emission, extremely hampering their applications. To circumvent the problem, core–shell structured ZIF67@ZIF8 is successfully synthesized and further functionalized with phytic acid (PA) to obtain PA-ZIF67@ZIF8 hybrids. Then, it is used as an efficient flame retardant to reduce the fire risk of EP. The fire test results show a significant reduction in heat and smoke production. Compared with EP, incorporating 5.0 wt % PA-ZIF67@ZIF8 into EP, the peak heat release rate, total heat release, and peak carbon monoxide production are dramatically reduced by 42.2, 33.0, and 41.5%, respectively. Moreover, the EP/PA-ZIF67@ZIF8 composites achieve the UL-94 V-0 rating and the limiting oxygen index increases by 29.3%. These superior fire safety properties are mainly attributed to the excellent dispersion and the catalytic effect of metal oxide and phosphorus-containing compounds. This work provides an efficient strategy for preparing a promising ZIF-based flame retardant for enhancing flame retardancy and smoke toxicity suppression of EP.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2022
·Vol. 103
·期 3
·730-741
·
IF 2.606
Chang Tanran,Lv Hongning,Tan Minghui,Zheng Shumin,Gao Wei-Bo,Wang Bao,Zhao Qingsheng,Zhao Bing
Dye and heavy metal pollution has caused serious damage to water. It became a study hotspot to treatment at domestic and abroad. The abandoned industrial hemp residue after extraction of cannabidiol (CBD) commonly causes resource waste and environmental pollution. Herein, the industrial hemp residue is reused to prepare a recyclable composite with chitosan and Fe@ZIF67 magnetic metal material for the pollutant treatment. The properties of the synthesized composite are characterized by SEM, TG, BET, FT-IR, XRD, VSM, and Zeta potential analysis. Congo red (CR) and As (V) are adopted to evaluate the adsorption properties of composite. The composite shows the best adsorption effect for CR when the addition of industrial hemp residue is 20%, and the adsorption capacity is 166 mg/g. Whereas the best adsorption effect for As (V) occurs at the addition of industrial hemp residue is 2%, and the adsorption capacity is 22 mg/g. The results reveal that the developed composite has good adsorption effect on CR and As (V), suggesting the recycling of industrial hemp residue has potential for water production and industrial wastewater treatment. It may provide useful insights into the development of recovery and utilization of industrial hemp residue.
Graphical abstract
研究领域:
环境科学
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材料科学
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DOI
高影响因子
POLYMER
·
2026
·
IF 5.1
Weizhen Huang,Jieyu Xue,Qiyue Xiao,Ruohan Zhao,Yuanrong Ding,Jianxun Zhang,Zhou Chen,Yong Yang
Noise pollution has long been a critical challenge affecting daily life and industrial activities. Porous materials, such as melamine foam, are widely used for noise reduction due to their excellent sound absorption, low density, and facile processability. However, their sound absorption properties are often limited by the control of thickness or quality in practical applications. This study presents a polydopamine (PDA) mediated surface modification approach, in which zeolitic imidazolate framework 67 (ZIF67) are grew on melamine foam (MF) to enhance its acoustic and mechanical properties. The ZIF67/PDA/MF composite (ZPM) possesses outstanding acoustic performance with a best noise reduction coefficient (NRC) of 0.64, while maintaining sound transmission loss (STL) values exceeding 15 dB above 500 Hz and reaching a maximum of 30.95 dB at 6400 Hz. And it attains a maximum modulus of 35.1 kPa at 60% strain. These improvements stem from the optimized foam skeleton structure, micropores formed via ZIF67 deposition, and increased surface roughness that reinforces the interfacial friction damping effect. This simple yet versatile strategy can be extended to other porous materials, demonstrating significant potential for noise control in industrial, architectural, and transportation applications.
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产品关联
DOI
高影响因子
Separations
·
2026
·Vol. 13
·期 2
·72
·
IF 3.5
Mengshuai Liu,Xiaoman Li,Mengmeng Zhao,Xuyang Jiu,Chuang Yao,Minglei Tian
Background: Food waste contains abundant (+)-catechin, but its efficient recovery remains challenging. This study aimed to prepare ionic liquid (IL)-modified sorbents and establish an efficient method for (+)-catechin recovery from chocolate waste via solid-phase extraction (SPE). Methods: Three series of IL-modified sorbents (Sil-IL, ZIF67-IL, Sil@ZIF67-IL) were synthesized. Their adsorption performance was evaluated under different conditions; adsorption isotherm and kinetic data were fitted to Langmuir/Freundlich and pseudo-first/second-order models, respectively. Sorbent stability and (+)-catechin recovery from chocolate waste extracts were tested. Results: Sil@ZIF67-Hmim showed the highest adsorption capacity (154.4 mg/g) at 25 °C within 120 min. Adsorption followed the Langmuir model (R2= 0.99), indicating chemisorption. Sil@ZIF67-Hmim was subjected to repeated solid-phase extraction (SPE) for five consecutive days; the recovery rate ranged from 98.1% to 99.2%, and the relative standard deviation (RSD) was 3.2–4.4%. Conclusions: Sil@ZIF67-Hmim is a high-efficiency sorbent for (+)-catechin recovery from chocolate waste, providing a novel approach for food waste valorization and highlighting the application potential of IL-modified MOF-silica composites.
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2019
·
IF 4.084
Wencai Peng,Guoxin Zheng,Yuanbin Wang,Shiyao Cao,Zhen Ji,Yahuan Huan,Mingqiang Zou,Xiaoqin Yan
The electrochemical splitting of water is considered to be an efficient and potential technique for producing clean hydrogen and oxygen. Although, there are lots of significant developments in composite of superior hydrogen evolution reaction (HER) or oxygen evolution reaction (OER) catalyst applied in water splitting currently, designing non-precious and low-cost bifunctional electrocatalysts with high performance is still an attractive challenging issue. In this article, we report a novel bifunctional electrocatalyst with cobalt-based nanoparticles (NPs) embedded in Zn-doped hierarchical porous three-dimension N-doped carbonization structure via an annealing process of metal organic frameworks (MOFs) connected by N-doped carbon nanotube (denoted as Co–Zn/PNC). This composite structure possesses the characteristics of more active sites, numerous mesopores and high conductivity. The resulting electrocatalyst (Co–Zn/PNC) can be used as both anode and cathode to roust the overall water splitting, getting a current density of 10 mA cm −2 at a cell voltage of 1.63 V in 1.0 M KOH electrolyte.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·
IF 7.5
Wu Zhiguo,Li Wenfeng,Yang Zongzheng,Shen Qingsi,Wu Liya
Cellulose-ZIF67 adsorption of emulsified oily wastewater was systematically studied. • Excellent environmental tolerance under high salinity and pH 6-10 range. • Synergistic electrostatic adsorption and hydrophobic interactions for emulsified oil removal. • Real textile oil fume wastewater achieved 68.77% oil and 92.42% turbidity removal. • Real marine diesel wastewater achieved 80.60% oil and 80.57% turbidity removal. Emulsified oily wastewater has emerged as a major challenge in the field of water treatment due to the difficulty of oil-water separation and its severe impact on environmental ecosystems. Cellulose offers excellent modifiability and biodegradability, while metal-organic frameworks have demonstrated unique advantages in oil-water separation owing to their high specific surface area and tunable pore structures. In this study, a hydrophobic cellulose-based MOF adsorbent was successfully fabricated by in situ growth of ZIF67 on cellulose via diazonium chemistry, followed by depositing of hydrophobic monomers. The results showed that at dosages of 60 mg/L and 40 mg/L, the oil removal efficiencies for emulsified oily wastewater at concentrations of 300 mg/L and 150 mg/L reached 93.88% and 93.55%, respectively, while the turbidity removal efficiencies both exceeded 99.6%. The adsorbent maintained satisfactory oil removal performance under high-salinity conditions and over a pH range of 6-10. The adsorption process conformed to the Sips isotherm model and pseudo-second-order kinetics, and was characterized as spontaneous, endothermic, and entropy-driven. The interaction mechanism between the adsorbent and oil was primarily attributed to the synergistic effect of hydrophobic interactions and electrostatic attraction. The adsorbent demonstrated significant removal of esters, ethers, and siloxanes from real textile oil fume purification wastewater, as well as alkanes and cycloalkanes from marine diesel wastewater. This work systematically investigated the adsorption performance of the as-prepared adsorbent toward surfactant-stabilized emulsified oily wastewater. Its practical applicability was preliminarily evaluated using two real oily wastewaters with different compositional characteristics.
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
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2022
·
IF 12.545
Shuqing Huang,Zhenping Liu,Yu Yan,Jiamei Chen,Ruizhi Yang,Qiuju Huang,Mingliang Jin,Lingling Shui
C-reactive protein (CRP) is one of the most sensitive acute-phase reactants, which is an early stage indicator of cardiovascular disease and infectious inflammation in clinic. However, it is still challenging to accurately quantification the trace content of CRP molecules in plasma samples. In this work, we propose an ultrasensitive electrochemical CRP aptasensor based on rhomboid dodecahedra carbonized-ZIF 67 loaded with gold nanoparticle modified by aptamer . Aptamer biomolecules are binded to AuNPs via Au-thiol bonds for selectively capturing CRPs. The ultrasensitivity is achieved based on triple signal enhancing strategy: enhancing the specific surface area via the rhomboid dodecahedra structure of ZIF 67 , increasing the conductivity via carbonization of ZIF 67 , and multiplying the number of probe molecules via an enzyme catalyzed reaction . Experimental parameters, including the volume of C-ZIF 67 dispersion, electrodeposition time of AuNPs, incubation time of aptamer-CRP and aptamer-CRP concentration, are systemically investigated and optimized. Under optimal conditions, the proposed biosensor shows excellent sensing performance with the limit of detection (LOD) of 0.44 pg mL −1 (S/N = 3), and a broad linear dynamic range of 10 pg mL −1 ‒ 10 μg mL −1 within the total readout time of 5 min. This work provides an effective electrochemical biosensor for CRP assay in plasma, being highly potential for applications in bioanalysis and point-of-care (POC) clinical diagnosis.
研究领域:
生物化学
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分析化学
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生物医学工程
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临床诊断
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产品关联
DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2023
·Vol. 34
·期 13
·135601
·
IF 3.5
Yudan Chai,Xuedong Wei,Yufen Wang,Shuangyan Qiao
In this paper, a Cr(OH)3 NSs@ZIF67 (NSs = nanosheets) electrocatalyst is prepared on foam Ni via a simple and rapid electrochemical deposition method. Excellent electrocatalytic activity of Cr(OH)3 NSs@ZIF67 is demonstrated. It can use the overpotential of 281 mV and 390 mV respectively to drive 10 mA cm−2 and 50 mA cm−2. It is observed that the Cr(OH)3 NSs@ZIF67 electrode has the highest initial current density at 1.57 V compared with the other two monomer electrodes and shows excellent stability at the end of 60 000 s. It has the largest electrochemical activity specific surface and lowest charge-transfer resistance, and M–O bonds (M = Co, Cr) and shifting of binding energy peaks at the interface lead to more active sites and more efficient electron transfer for oxygen evolution reaction. This work highlights the construction of highly efficient composite electrocatalysts composted of low-dimensional non-precious transition metal compounds and metalorganic frameworks, promoting the development of low-cost non-noble metal composites in energy chemistry.
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
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Quanlu Wang,Yikun Wang,Tingting Zhang,Yanmin Wang,Qiang Zhang,Tingxi Li,Yongqin Han
Metal-organic frameworks (MOFs) are promising candidates for supercapacitors due to their intrinsic porous structure. However, their low conductivity limits their supercapacitive performances. Herein, carbon cloth/ZIF67/polypyrrole composites (CZPAs) are prepared by first in-situ growing ZIF67 on carbon cloth and then electrochemical polymerizing pyrrole on carbon cloth/ZIF67 utilizing alizarin red S (ARS) as redox dopant. The synergistic effects of ZIF67 and ARS including porous structure, doping effect and inducing limited/ordered growth of polyprrole are contributed to the improved electrochemical performances. The resulted composite doped by 35 mM ARS (CZPA-35) achieves the highest areal capacitance of 1198 mF cm −2 among the CZPAs. The asymmetric supercapacitor assembled by CZPA-35 and carbon cloth/active carbon as flexible electrodes demonstrates high areal capacitance (288 mF cm −2 ), high energy density (57.6 μWh cm −2 ) and power density (300.96 μW cm −2 ). Moreover, the flexible supercapacitor provides excellent cycle stability after 5000 cycles (87.1% capacitance retention) and flexibility (85% capacitance retention after bending angle of 180 °). This strategy can be extended to fabricate other kinds of flexible MOF/PPy composites for the potential application of flexible wearable and portable electronic products.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Xuedong Wei,Na Li,Xianming Zhang
Two kinds of three-phase composite materials, Co/Co(OH) 2 /C@B directly from ZIF67 modified by NaBH 4 and Co/CoO/C@B through pyrolyzation of Co/Co(OH) 2 /C@B material, are successfully synthesized and used as catalysts for the oxygen evolution reaction (OER). The structure and morphology are mainly characterized by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), energy dispersive X-ray analysis (EDX), X-ray photoelectron spectroscopy (XPS). HBZ-1 sample with the structure of Co/Co(OH) 2 /C@B has the best onset potential of 1.075 V vs. RHE at 0.1 mA cm −2 and the best catalyst stability among all of the materials researched. Especially as its pyrolyzing product, the CBZ-1 sample with the structure of Co/CoO/C@B behaves the most excellent synthetically electrocatalytic performance with low onset potential of 1.444 V vs. RHE at 0.1 mA cm −2 and a small overpotential of 390 mV at 10 mA cm −2 , which is better than that of RuO 2 . This good catalytic activity is mainly attributed to the generation of CoO phase and synergistic effect of all the phases in the composite structure. Furthermore, the CBZ-1 sample has the appropriate catalytic stability which attributed to the three-phase structure of Co/CoO/C@B composite and the existing of a little B element.
研究领域:
材料科学
·
电催化
·
纳米材料
·
能量转换
·
无机化学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Qin Tao,Tianwen Liu,Mengyao Si,Tingting Zhang,Qiu Jin,Xiaoying Wang
The simultaneous presence of heavy metal ions (HMIs) such as Pb²⁺ and Hg²⁺ pose severe risks to food safety, particularly in aquatic products. Herein, a ratiometric electrochemical aptasensor integrated with magnetic separation-assisted entropy driven catalyst (EDC) was developed for simultaneous detection of Pb²⁺ and Hg²⁺. In this work, Fe@ZIF67-NH₂, an iron-doped zeolitic imidazolate framework, as both an electrode modifier and an internal reference, providing stable electrochemical signals and enhanced surface area. Herein, we utilized Fe@ZIF67-NH₂ (an iron-doped zeolitic imidazolate framework) as both an electrode modifier and an internal reference to provide stable electrochemical signals and increase the surface area. Dual EDC reactions amplified Pb²⁺ and Hg²⁺ signals independently, while magnetic separation isolated carbon dots (CDs) labelled DNA strands (CDP-D1 and CDH-P1) from interference strands, minimizing background noise. The sensor demonstrated wide linear ranges of 0.2-2.0×10⁴ ng mL⁻ 1 for Pb²⁺ and 0.1-1.0×10⁴ ng mL⁻ 1 for Hg²⁺, with detection limits of 0.1 ng mL⁻ 1 and 0.03 ng mL⁻ 1 , respectively. Practical validation using dried seafood samples showed recovery rates of 96.4-107.0% and relative standard deviations (RSDs) < 6.60%, and were consistent with inductively coupled plasma mass spectrometry (ICP-MS). This work presents a highly amplification-efficient and sensitive strategy for multiplex HMI detection in complex matrices, offering significant potential for food safety monitoring and environmental analysis.
研究领域:
分析化学
·
食品安全
·
环境监测
·
纳米技术
·
电化学
·
生物传感器
✓ 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）