Food and Bioprocess Technology
·
2026
·Vol. 19
·期 10
·496
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IF 5.6
Gu Nixuan,Zhang Yingfan,Zhu Liang
Highly perishable fruit suffers postharvest losses from respiration, microbes, and microenvironmental shifts, which conventional packaging cannot dynamically address. This study developed dual-responsive active films via in situ hydrothermal synthesis of HKUST-1 within a chitosan (CS)/polyvinyl alcohol (PVA) matrix co-loaded with cinnamaldehyde (Cin). pH-responsiveness stems from CS amino protonation, while humidity sensitivity involves water-induced disruption of HKUST-1 carboxylate-Cu coordination. Structural properties (morphology, crystallinity, and bonding), mechanical strength, barrier function, and pH/humidity-responsive release kinetics were meticulously characterized. The acidic, high-humidity microenvironment generated during postharvest storage triggered the pH/humidity-dependent release of Cin, conferring potent antibacterial activity against Staphylococcus aureus ( S. aureus ). Preservation tests with Chilean blueberries demonstrated that the films prolonged shelf life by reducing decay, suppressing weight loss, and inhibiting microbial growth. This study establishes a novel strategy for microenvironment-responsive active packaging. The dual-release mechanism synchronizes preservative delivery with fruit spoilage signals, advancing intelligent preservation technologies for perishable foods.
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高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Xijia Zhang,Xiaojian Fei,Hongbin Pu,Weibin Zhao,Qingyi Wei,Zhiwei Zhu
In situ HKUST-1 growth created a hierarchically porous hydrocolloid aerogel. • Polymer macropores and MOF pore domains jointly regulated carvacrol loading and release. • Humidity build-up triggered sustained rather than front-loaded carvacrol release. • Vapour phase carvacrol effectively inhibited bacterial and Botrytis cinerea growth. • PCTH@CAR delayed strawberry deterioration by maintaining texture and water status. Excessive moisture sensitivity of pristine HKUST-1 often causes rapid framework collapse and burst release under highly humid conditions, limiting its use as a humidity-triggered carrier for volatile antimicrobials. Here, we report a hierarchically porous composite aerogel constructed by in situ growth of HKUST-1 within a poly (vinyl alcohol)/carboxymethyl chitosan/TEMPO-oxidised cellulose nanofiber network, followed by carvacrol (CAR) loading to obtain PCTH@CAR. This confined growth architecture regulated metal organic framework (MOF) distribution, helped moderate moisture-induced structural disruption, and coupled polymer-derived macropores with MOF micropores, thereby improving cargo accommodation and release control. The cumulative CAR release reached 54.32% after 12 d even at 15% RH, while at 98% RH it reached 34.61% after 2 d and 81.99% after 12 d, with release sustained throughout storage rather than concentrated at the initial stage. The aerogel also showed effective vapour phase antimicrobial activity against Escherichia coli , Staphylococcus aureus , and Botrytis cinerea . In strawberry packaging, PCTH@CAR delayed visible spoilage and reduced weight loss from 20.45% to 2.04% after 8 d, whereas untreated strawberries had already lost marketability by day 4 owing to evident mould growth and softening. These results support in situ grown HKUST-1 within a hierarchically porous biopolymer aerogel as a practical route to non-contact, humidity-adaptive active packaging for postharvest preservation. Download: Download high-res image (211KB) Download: Download full-size image
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NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 47
·期 3
·1094-1104
·
IF 3.925
Hui Luo,Yang Han,Kaiyuan Hu,Jia Li,Dickon H. L. Ng,Xiaodi Ma,Kairui Luan,Mingkang Yang
Herein, we demonstrate a novel Fe3O4@MnO2@HKUST-1 magnetic micromotor with excellent peroxidase-like activity for highly efficient colorimetric detection and degradation of hydroquinone. Such micromotors had unique flower-like morphology with highly exposed active sites. The resulting MnO2-based micromotor was propelled by O2 bubbles generated from hydrogen peroxide fuel catalyzed by MnO2, and the velocity could be adjusted by the H2O2 fuel concentration. The self-propelled motion of the Fe3O4@MnO2@HKUST-1 could effectively increase the collision probability between active sites and pollutant molecules, and thus, enhanced the sensitivity of the colorimetric detection as well as the degradation efficiency. These excellent results confirm that this Fe3O4@MnO2@HKUST-1 micromotor has good prospects for future use in water treatment applications.
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高影响因子
IRANIAN POLYMER JOURNAL
·
2023
·Vol. 32
·期 10
·1229-1240
·
IF 3.1
Song Lixin,Zhang Jian,Zhang Xing,Rui Chaofan,Zhang Yunxia,Wang Mingyu,He Juan
The surface imprinting polymers (HKUST-1 @ MIPs) were synthesized by molecular imprinting technology. Using the metal–organic framework (HKUST-1) as the carrier, 4-methylumbelliferyl acetate as alternative templates for aflatoxins, and molecularly imprinted polymers polymerized on the surface of HKUST-1. The adsorption capacity (6.0 μg·mg −1 ) and adsorption rate (adsorption equilibrium reached within 5 min) of HKUST-1 @ MIPs for aflatoxins were studied. HKUST-1 @ MIPs were used as adsorbents to prepare surface-imprinted solid-phase extraction columns (HKUST-1 @ MIPs SPE columns). The extraction conditions of HKUST-1 @ MIPs SPE columns were optimized, and the reliability of the method was verified by HPLC–FD technique. Water was chosen as the wash solution and methanol as the eluent with an elution volume of 2 mL. The linear range of the method was 0.5–20 μg·kg −1 with R 2 = 0.9991–0.9996. The detection limits of aflatoxins (G2, G1, B2, and B1) were 0.05, 0.02, 0.03, and 0.05 μg·kg −1 , respectively. The limits of quantification were 0.2, 0.1, 0.15, and 0.3 μg·kg −1 , accordingly. The spiked recovery of aflatoxins (G2, G1, B2, and B1) was 92.5%-118.4%, and the relative standard deviation was 3.14%-6.03%. It had been verified that the self-made solid-phase extraction column had high stability and reusability and could be used for at least six times. Comparing the HKUST-1 @ MIPs SPE and immunoprophylactic columns, a low-cost, easy-to-operate, and sensitive method was developed for detecting trace aflatoxins in food by combining with HPLC–FD technique. Graphical abstract
In this work, dissolve BTC and Cu (NO3)2·3H2O completely and stir magnetically, heat to 120 °C for 12 hours. After washing with solvent, the purple solid HKUST-1 was obtained by centrifugation and drying
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高影响因子
Reaction Chemistry & Engineering
·
2023
·Vol. 8
·期 9
·2342-2352
·
IF 3.9
Jia Juan,Xue Ping,Liu Xueping,Xu Chongrui,Gu Yaohua,Li Peng
The co-immobilization of laccase and a mediator is essential for water treatment due to the fact that the free laccase and mediator cannot be recovered and reused simultaneously. Herein, a spherical solid biocatalyst, Lac@Ce-GMA-Cu-DA@AS, was prepared via the co-immobilization of laccase and acetosyringone mediator in a functionalized cellulose composite doped with HKUST-1. The Lac@Ce-GMA-Cu-DA@AS microbeads exhibited higher catalytic activity, better reusability and superior degradation efficiency for the substrate compared to the undoped HKUST-1. Specifically, 96% degradation efficiency of carbazole solution with a concentration of 20 mg L−1 was achieved after treatment with 1.0 g (wet weight) of Lac@Ce-GMA-Cu-DA@AS beads for 8 h under the conditions of 30 °C, pH 5.0, and 20 mM ionic strength. Based on the analysis and identification of the degradation intermediates of carbazole, the possible pathways for the degradation of carbazole by the Lac@Ce-GMA-Cu-DA@AS microbeads were proposed. It was found that the toxicity of the carbazole solution was lower after treatment than the original. Natural polymeric cellulose composite doped with HKUST-1 displayed an excellent performance for co-immobilizing laccase–mediator and can provide a practical new approach for the degradation of carbazole pollutant in water.
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Surfaces and Interfaces
·
2023
·
IF 6.2
Xupeng Zhang,Kaiqian Li,Xianghong Li,Longxin Guo,Shuduan Deng,Zhiping Xu,Gang Zhu
Manufacturing durable wood membranes that demonstrate both high efficiency and ultra-high flux for continuous oil-water separation utilizing scalable and cost-effective processes remains a serious challenge. In this study, a facile two-step approach is employed to prepare a novel superhydrophobic/oleophilic wood-based MOF (metal-organic framework) membrane. This method involves in-situ anchoring of the octahedral Cu-HKUST-1 (copper benzene-1,3,5-tricarboxylate) onto the wood sponge (WS), which inherently features internal micro-channels. The structure is then modified using the eco-friendly hydrophobic long-chain coupling agent dodecyltrimethoxysilane (DTMS). Due to its unique micro/nanoscale rough surface morphology and low surface energy, the functional wood membrane (DTMS/HKUST-1@WS) exhibited a high contact angle of 162.98±1.10° for water and was able to effectively separate various immiscible oil/water mixtures. Notably, the DTMS/HKUST-1@WS membrane can be integrated into a pump drive system, serving as an advanced filter element for the sustained and efficient oil-water constituents. Results showed that this membrane possesses attractive permeability toward CCl 4 (56689.34 L·m −2 ·h −1 ) and toluene (47241.12 L·m −2 ·h −1 ), achieving separation efficiencies over 99.0%. Furthermore, this novel membrane exhibits remarkable resistance to physical damage, high/low temperatures, and corrosive solutions, thereby showcasing stable superhydrophobic and superoleophilic interfaces suitable for oily wastewater treatment in harsh environments. Thus, this work offers an innovative approach for designing functional wood-based MOF membranes to achieve highly efficient continuous oil-water separation.
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高影响因子
ANALYTICA CHIMICA ACTA
·
2023
·
IF 6.2
Yuchen Zhu,Jian Xu,Di Zhang,Aodong Zhang,Boxin Chen,Bin Zhao,Xuhong Qian,Ya Cheng,Fei Feng
Background The gas chromatography column is one of the key components of the gas chromatograph and typically be miniaturized using micro-electro-mechanical system (MEMS) technology. Due to the limited area of the Si wafer, the column length of micro gas chromatographic column (μGCC) is usually much smaller than that of commercial chromatographic columns. Therefore, it is always difficult to use μGCCs to separate small molecule gas components such as light hydrocarbons. More importantly, the heterogeneous microchannel surface formed by silicon glass bonding causes uneven stationary phase coating, further preventing the improvement of separation performance. Results In this paper, a novel all-glass based μGCC with 2 m length for the separation of light hydrocarbons is proposed. The microchannels of the μGCC were directly prepared in the glass substrate by ultrafast laser assisted chemical etching (ULAE). The all-glass microchannels make the coating of the hydrophilic metal-organic frameworks (MOFs) stationary phase continuously because of the homogeneous material composition. Therefore, a widely used copper based hydrophilic MOFs HKUST-1 was used as stationary phase for coating and testing. The test results show that the μGCC which is an open tubular column can realize the baseline separation of light hydrocarbons at 100 °C. And the resolution of difficult separated compounds, methane and ethane, can reach 12.98, which is 201.86 % higher than the silica-based monolithic capillary column in the relevant research. The resolution of ethane and ethylene reaches 6.81 at 120 °C. Significance The μGCC fabricated by ULAE method is composed of all-glass and has the uniform stationary phase coating because of the homogeneous microchannel surface which greatly improve the separation performance, resulting in a large resolution for methane and ethane. The all-glass μGCC has broad application prospects in light hydrocarbon separation.
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PubMed
高影响因子
SOLID STATE SCIENCES
·
2023
·
IF 3.5
Qiqi Huang,Fuxiao Zhu,Feiyan Xiao,Gongliang Zhang,Hongman Hou,Jingran Bi,Shuang Yan,Hongshun Hao
In recent years, using external mechanical energy to solve environmental pollution problems has gradually become a promising strategy, such as piezoelectric catalysis and piezoelectric photocatalysis . In this paper, a series of HKUST-1/g-C 3 N 4 composite materials were successfully synthesized by the combination of g-C 3 N 4 with S-vacancy and porous HKUST-1 semiconductor. Under visible light irradiation and ultrasonic action, the catalytic activity of HKUST-1/g-C 3 N 4 on RhB degradation was investigated. When the mass ratio of HKUST-1 to g-C 3 N 4 is 1:0.3 during the process of piezoelectric photocatalysis, the as-prepared HKUST-1/g-C 3 N 4 composite had the best RhB degradation performance up to 94.42%, which is about 2.83 times that of visible light and 3.56 times that of ultrasonic waves. According to the result of the trapping experiment, the process of piezo-photocatalytic reaction could produce the number of reactive oxygen species (ROS), and the hydroxyl radical (•OH) was crucial in the breakdown of pollutants.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2020
·
IF 3.807
Yijing Ai,Ningning Gao,Qingxiang Wang,Feng Gao,D. Brynn Hibbert,Chuan Zhao
Metal-organic frameworks (MOFs) receive increasing interest in the construction of high-performance electrochemical sensors, because of their outstanding properties such as large surface area, rich active sites, tunable pore size, and high electrocatalysis. In this work, an electroactive sensing metal-organic framework material, Hong Kong University of Science and Technology-1 (HKUST-1), has been successfully constructed by the in-situ electrodeposition of metallic copper (Cu) on an electrode surface modified with Nafion-single walled carbon nanotubes (SWCNTs-Nafion), followed by potentiostatic scan in benzene-1,3,5-tricarboxylic acid solution. The HKUST-1 modified electrode was characterized by scanning electron microscopy, FT-IR and electrochemistry. Electrochemical sensing assays show that the HKUST-1/SWCNTs-Nafion modified electrode can effectively resolve the overlapping redox signals of the three dihydroxybenzene isomers (DHBIs), namely hydroquinone (HQ), catechol (CT), and resorcinol (RS), and is capable of determination of the DHBIs in real water samples.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Shujuan Yang,Rong Tang,Yanan Dai,Tianhao Wang,Zhinong Zeng,Liping Zhang
To expand the application of cellulose acetate (CA) membranes in wastewater treatment, the excellent ultrafiltration performance and anti-fouling properties should be achieved. Firstly, HKUST-1@ lignocellulose nanofibrils (LCNFs) was fabricated through green and in-situ strategy successfully, which combine the characteristics of the HKUST-1 and LCNFs. Then, the blended ultrafiltration membranes with different loading of HKUST-1@LCNFs (or HKUST-1, LCNFs) were prepared by the process of phase separation, which exhibit improved pore structure, hydrophilicity, and rejection rate. Excitedly, the highest pure water permeability of 207.32 L·m −2 ·h −1 and the flux recovery ratio (FRR) of 90.56% were obtained with M6 membrane (0.55 wt% HKUST-1@LCNFs), which was better than that of M2 (HKUST-1) and M3 (LCNFs). It is confirmed that HKUST-1 could inhibit the accumulation of LCNFs, making it taking advantages of its hydrophilic groups. Moreover, composite membranes have attractive antibacterial properties, and >90% of E. coli were killed by M7. This work demonstrated that CA membranes blended with HKUST-1@LCNFs possesses great potential in the wastewater treatment process.
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高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2019
·
IF 3.192
Jingcheng Du,Cailong Zhou,Zhijie Yang,Jiang Cheng,Yuanyuan Shen,Xinjuan Zeng,Luxi Tan,Lichun Dong
The economic and green synthesis of metal-organic frameworks (MOFs) is of great significance. In this work, a facile method for preparing HKUST-1 MOFs at room temperature with insoluble Cu 2 (OH) 2 CO 3 particles and film as the precursors was developed. The as-prepared HKUST-1 MOFs were characterized by using the XRD , Raman spectrum , FTIR, XPS and N 2 adsorption-desorption analyses, and the wetting property of the HKUST-1 film was also evaluated. The results demonstrated that the MOF film decorated copper mesh possesses the promising underwater superoleophobicity and underoil superhydrophobicity, with the contact angles of non-wetting liquids larger than 150°. The on-demand oil/water separation was subsequently realized through a prewetting method, obtaining the high separation efficiency up to 97%. The facile route by using solid precursors developed in this work might provide a new strategy for preparing MOFs, and the special wetting properties of the as-prepared materials could enrich the applications of MOF films as well.
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高影响因子
Journal of Cleaner Production
·
2018
·
IF 5.651
Chen Fan,Hongqiang Dong,You Liang,Jiale Yang,Gang Tang,Wenbing Zhang,Yongsong Cao
Cyhalothrin is lethally toxic to aquatic organisms and has caused adverse effects in the hydrosphere . It is urgent to develop efficient and sustainable material for its removal. High-quality HKUST-1 was rapidly synthesized by cholinium ionic liquids (ILs) in water at room temperature. Yields of HKUST-1 showed obviously positive correlation with Hammett values of ILs. When applying CuCl 2 as a copper salt, the yield of products was reached up to 95.5%, which was much higher than that of reported research. The reaction could be readily scalable with high space-time yield (242512 kg m −3 d −1 ). Additionally, ZrO 2 @HKUST-1 composite was successfully synthesized through a sol-gel method without complicated heat treatment. The whole process eliminates the use of environmentally unfriendly solvents/amines and enables the production of material at a reasonable cost. The obtained HKUST-1 and ZrO 2 @HKUST-1 possessed large pore volume (0.88–0.95 cm 3 g −1 ) and high surface area (1152–1484 m 2 g −1 ). The composite material was used for the adsorption/degradation of cyhalothrin and showed superior photocatalytic activity under moderate visible light, as compared to pure ZrO 2 , HKUST-1 and commercial TiO 2 samples. ZrO 2 @HKUST-1 displayed the high cyhalothrin adsorption capacity of 333 mg g −1 through π−π stacking, which facilitated more target molecules to contact the composite in a short time. ZrO 2 incorporating with HKUST-1 protected ZrO 2 nanoparticles from rapid agglomeration, thus narrowed the band gap of the composite. Moreover, the formation of a junction between HKUST-1 and ZrO 2 effectively reduced the recombination of photoinduced carriers in composite. Therefore, the novel ZrO 2 @HKUST-1 composite can be used as a sustainable efficient heterogeneous photocatalyst for the removal of organic pollutant.
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