COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Yiyang Bi,Xin Wang,Ke Li,Chengqian Wang,Yu Zhang,Qun Liu
A reasonable introduction of MOFs-derived Ni 2 P with high dispersion is a valid way to reduce the recombination rate of photogenerated electron holes , thus enabling more effective visible light-driven water splitting. Herein, the MOF-on-MOF strategy was used to prepare Ni 2 P@UiO-66-NH 2 by in situ growth of Ni-MOF on UiO-66-NH 2 followed by vapor-phase phosphating, and the composite photocatalyst of CdS/Ni 2 P@UiO-66-NH 2 was obtained by a facile ultrasound method in solvent. UiO-66-NH 2 provides the growth site for Ni-MOF, enabling uniform dispersion of Ni 2 P and the firmly anchoring of CdS. By adjusting the proportion of Ni 2 P@UiO-66-NH 2 , the light absorption capacity and photocatalytic activity can be further optimized. The hydrogen production efficiency of CdS/Ni 2 P@UiO-66-NH 2 can reach up to 2103 µmol·g −1 ·h −1 , which is about 7 times higher than that of pure CdS. The improvement of the photocatalytic performance of CdS/Ni 2 P@UiO-66-NH 2 composites can be mainly ascribed to the increased active sites exposure, well dispersion of CdS, and the creation of multiple heterojunctions , which tune the band gap, broaden the visible light absorption, and facilitate the carrier separation. This work offers an efficient synthetic strategy for creating ternary composites with remarkable catalytic activity and high stability for hydrogen evolution .
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ANALYTICA CHIMICA ACTA
·
2025
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IF 6
Jiaqi Niu,Jinhui Liu,Ping Guo,Min Du,Wanqing Wu,Ziyang Zhang,Ye Ning,Dedi Zhou,Haidong Cao
As a common contaminating bacterium, Escherichia coli (E. coli) has caused severe harm in various fields such as food, healthcare, and the environment. Traditional detection methods for Escherichia coli, owing to factors like high cost and low efficiency, are unable to meet the detection requirements at the present stage. Therefore, the development of a simple, rapid, and highly efficient detection method for Escherichia coli represents an urgent issue that needs to be addressed promptly. This study focused on the development of a highly selective molecularly imprinted electrochemical sensor for E. coli. Molecularly imprinted polymers (MIPs) were prepared by electropolymerization on the surface of glassy carbon electrode using o-phenylenediamine as the functional monomer, aminated metal-organic frameworks (MOFs) and carbon nanotubes (CNTs) as the composites, and bovine serum albumin (BSA) was added into the polymer film to attenuate the non-imprinting effect. The linear range of the sensor was 10-10 7 CFU/mL and the detection limit was 5.2 CFU/mL. Good recovery rates were shown in real samples of drinking water, milk and orange juice. In addition, the good binding ability of the E. coli template molecule to the functional monomer o-phenylenediamine was verified by molecular docking and molecular dynamics (MD) simulations. This study was able to detect E. coli in 20 min, which provides a more open idea for the application of rapid detection of E. coli on-site, as well as the construction of molecularly imprinted electrochemical sensors and the analysis of the binding mechanism between template molecules and functional monomers.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
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IF 5.4
ZhenXiang Xu,Yuan Gao,JingLiang Wang,YunHuan Li,YiPeng Zhao,Xin Meng,Xia Feng,Li Chen,YiPing Zhao
Bio-based porous adsorbents for multicomponent air purification are often constrained by limited active-site density, insufficient control over hierarchical pore architectures, and inadequate mechanical robustness. Herein, chitosan was functionalized with poly(amidoamine) (PAMAM) dendrimers of different generations and combined with carboxymethyl cellulose (CMC) and UiO-66-NH 2 to construct nitrogen-enriched composite aerogels. The effects of PAMAM generation and UiO-66-NH 2 loading on the pore architecture, surface chemistry, mechanical response, and pollutant-capture performance of the aerogels were systematically evaluated. The optimized CG 2 MUNA-2 aerogel exhibited a well-connected porous network and sustained a compressive stress of 13.62 MPa at 80% strain. It achieved a CO 2 uptake of 0.64 mmol·g −1 at 273.15 K and a formaldehyde adsorption capacity of 1.57 mmol g −1 , while retaining 92.4% of its initial formaldehyde adsorption capacity after five adsorption-desorption cycles. When incorporated into cigarette filter rods, CG 2 MUNA-2 reduced CO, CO 2 , and total particulate matter by 30.87%, 14.01%, and 62.58%, respectively. Its superior overall performance was associated with a favorable balance among accessible amine functionalities, pore connectivity, and UiO-66-NH 2 dispersion. These results indicate that the coordinated regulation of PAMAM generation and MOF loading offers a rational materials-design strategy for developing biopolymer-based aerogels for multicomponent air-pollutant capture and cigarette-smoke purification. Download: Download high-res image (278KB) Download: Download full-size image
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FOOD CHEMISTRY
·
2026
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IF 10.4
Hao Fang,Limin Cao,Jianxin Sui,Xiudan Wang,Hong Lin,Kaiqiang Wang,Jinjie Li
A dual-modulation strategy improved the stability of anthocyanin-based indicator patches. • Phenolic copigmentation enhanced thermal stability of anthocyanins. • UiO-66-NH 2 provided effective UV protection and additional pigment immobilization. • The anthocyanin-based patch maintained color integrity for more than 6 months. • The anthocyanin-based patch was used to monitor the freshness of shrimp. Anthocyanins are natural pH-sensitive pigments with potential for intelligent food packaging, but their poor stability under environmental stress limits practical use. Herein, a highly stable intelligent indicator patch was developed by combined incorporation of UiO-66-NH 2 , a metal-organic framework, and 2,5-dihydroxybenzoic acid. This dual-modulation strategy significantly enhanced anthocyanins stability through hydrogen bonding and van der Waals interactions. The optimized indicator patch maintained color integrity for over 30 days at ambient temperature and more than 6 months at 4 °C in darkness. It exhibited excellent pH responsiveness and high selectivity to spoilage amines (e.g., NH 3 , dimethylamine, trimethylamine) over common volatile interferents. When applied to Litopenaeus vannamei , the patch's color change correlated strongly with total volatile basic nitrogen (TVB-N) values ( r > 0.93), accurately identifying freshness stages. The indicator patch showed high batch-to-batch reproducibility ( RSD < 5%) and anti-interference capability. This study provides a feasible approach to commercialize anthocyanin-based freshness indicators for intelligent packaging. Download: Download high-res image (316KB) Download: Download full-size image
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ACS Catalysis
·
2024
·
IF 11.3
Chong Qi,Yifu Bi,Yaolin Wang,Hong Yu,Yuanyu Tian,Peijie Zong,Qinhua Zhang,Haonan Zhang,Mingqing Wang,Tao Xing,Mingbo Wu,Xin Tu,Wenting Wu
Nonthermal plasma (NTP) offers the potential for converting CH4 with CO2 into liquid products under mild conditions, but controlling liquid selectivity and manipulating intermediate species remain significant challenges. Here, we demonstrate the effectiveness of the Cu/UiO-66-NH2 catalyst in promising the conversion of CH4 and CO2 into oxygenates within a dielectric barrier discharge NTP reactor under ambient conditions. The 10% Cu/UiO-66-NH2 catalyst achieved an impressive 53.4% overall liquid selectivity, with C2+ oxygenates accounting for ∼60.8% of the total liquid products. In situ plasma-coupled Fourier-transform infrared spectroscopy (FTIR) suggests that Cu facilitates the cleavage of surface adsorbed COOH species (*COOH), generating *CO and enabling its migration to the surface of Cu particles. This surface-bound *CO then undergoes C–C coupling and hydrogenation, leading to ethanol production. Further analysis using CO diffuse reflection FTIR and 1H nuclear magnetic resonance spectroscopy indicates that in situ generated surface *CO is more effective than gas-phase CO (g) in promoting C–C coupling and C2+ liquid formation. This work provides valuable mechanistic insights into C–C coupling and C2+ liquid production during plasma-catalytic CO2 oxidation of CH4 under ambient conditions. These findings hold broader implications for the rational design of more efficient catalysts for this reaction, paving the way for advancements in sustainable fuel and chemical production.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Ziyi Yuan,Zhihong Lin,Kejing Li,Jian Li,Viatcheslav Freger,Xuezhong He
Polymers of intrinsic microporosity (PIMs) are promising membrane materials for CO2 separation due to their high permeability; however, their limited CO2/N2 selectivity restricts practical application. Herein, mixed-matrix membranes (MMMs) were fabricated by incorporating a CO2-molecularly imprinted UiO-66-NH2 filler (MIP@U) into amidoxime-functionalized PIM-1 (AOPIM-1), followed by thermal treatment at 160 or 250 °C under vacuum to regulate the membrane microstructure. Spectroscopic and porosity analyses (FTIR, XRD, and N2 physisorption) show that thermal treatment at 160 °C promoted oxadiazole-ring formation, leading to enhanced subnanometer microporosity and improved CO2/N2 selectivity. In contrast, treatment at 250 °C partially regenerates nitrile groups and generates larger micropores, resulting in higher CO2 permeability but reduced selectivity. The MIP@U filler introduces CO2-recognition cavities and improves interfacial compatibility, enabling synergistic control of polymer microporosity and interfacial transport pathways. The optimized 3 wt % MIP@U/AOPIM-1-TR160 membrane achieves a CO2 permeability of ∼1600 Barrer and a CO2/N2 selectivity of 50.8. The membrane also demonstrates stable performance under pressures up to 12 bar and during 30 h of continuous operation at 2 bar. This study highlights a dual-approach strategy combining thermally tailored PIM chemistry with molecularly imprinted MOF fillers for designing high-performance MMMs for CO2 capture.
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MICROCHEMICAL JOURNAL
·
2026
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IF 5.2
Zhaoxia Shi,Zhen Luo,Yilu Liu,Yintang Zhang,Yanli Zhou,Maotian Xu
A synergistic MgO@UiO-66-NH₂ nanocomposite was prepared for CTL sensing. • The proposed CTL sensor enables rapid, non-invasive detection of isopropanol. • The sensor exhibits a wide linear range (0.04–120 mg/L) and good stability. • This method offers a potential approach for preclinical lung cancer screening via exhaled breath analysis. Isopropanol (IPA) has been identified as a potential biomarker for lung cancer, and the rapid detection of IPA in exhaled breath may offer a promising strategy for lung cancer screening. In this study, rod-like MgO, MnO₂, and ZnO, along with natural halloysite nanotubes (HNTs), were synthesized and used as carriers to fabricate nanocomposites with a Zr-based metal–organic framework (UiO-66-NH₂). Their catalytic activities toward IPA were evaluated using cataluminescence (CTL) measurements. MgO@UiO-66-NH₂ exhibited the highest catalytic activity, attributed to the synergistic effect between MgO and UiO-66-NH₂ enhancing the redox capacity in the presence of ozone. Based on this composite, a rapid CTL method was developed for IPA detection in exhaled breath. The intra-sensor precision (nine repeated measurements on the same sensor) gave a relative standard deviation (RSD) of 3.41%; inter-sensor reproducibility (seven different sensors) gave an RSD of 3.81%; and long-term stability over seven weeks showed an RSD of 4.3%. The linear range was 0.04–120 mg/L, with a limit of detection of 0.015 mg/L (S/N = 3). When applied to three healthy human exhaled breath samples, the method achieved spiked recoveries ranging from 90.0% to 105.3%. These results demonstrate that the proposed CTL sensor enables rapid, non-invasive detection of IPA and holds great potential for IPA detection in exhaled breath. Download: Download high-res image (143KB) Download: Download full-size image
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JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2023
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IF 6.1
Fangqing Li,Lin Chen,Yufei Wei,Zhiwei Yin,Keying Que
Membrane distillation (MD) is considered an emerging desalination technology. However, the presence of surfactants allows liquid to penetrate the membrane, resulting in membrane wetting, which hinders the commercialization of MD. In this study, we use very few modified materials to prepare novel Janus thin membranes that immobilize modified materials (graphene oxide (GO) and UiO-66-NH 2 ) on polytetrafluoroethylene (PTFE) hydrophobic base membranes via crosslinkers. The composite thin membrane properties with eight different ratios and contents of GO and UiO-66-NH 2 were fabricated and tested by a feed solution of sodium chloride containing a high concentration of sodium dodecyl sulfate. An optimal ratio of Janus membrane with high flux without affecting the effluent water quality was obtained. The Janus membrane exhibited excellent anti-wetting properties compared to the original PTFE membrane. A desalination rate of up to 99.9% was still available even under 48 h of long-term operating conditions by maintaining a flux of approximately 21.2 L/(m 2 ·h). The anti-wetting mechanism of this membrane was further confirmed by the modified XDLVO model. It suggested that the novel Janus membrane could be a highly promising substitute to the MD process for the resource-based treatment of surfactant-containing wastewater, which played an important role in promoting its application.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
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IF 5.518
Jiarong Wang,Shixiong Chen,Qinghao Zeng,Hong Jiang,Haiqing Chang,Tian C. Zhang,Xiaobao Tian,Yingqi Li,Ying Liang,Kai Wang
A miniaturized point-of-use (POU) water treatment device to achieve convenient and efficient water disinfection for remote and post-disaster areas remains a challenge. Herein, such as POU device consisted of a self-polymerized polydopamine (PDA) layer and UiO-66-NH 2 nanoparticles covered electrospun polyacrylonitrile (PAN) membrane (PAN@PDA@UiO-66-NH 2 ) with bacteria filtration and photothermal antibacterial property is successfully fabricated. The membrane achieves a good interception effect of microorganisms in water because of the synergistic pore interception and adsorption effect. A nearly 100% bacterial retention efficiency was obtained by the PAN@PDA@UiO-66-NH 2 membrane. In addition, the obtained PAN@PDA@UiO-66-NH 2 membrane exhibits nearly 100% photothermal sterilization efficiency against Escherichia coli ( E. coli ) under 6 min of 808 nm infrared irradiation (1.21 W). The great photothermal effect comes from the synergistic effect of good photothermal conversion efficiency and absorption of incident light caused by the PDA layer and rough UiO-66-NH 2 particles, respectively. Through the good filtration performance and photothermal effect of the membrane, the filtration for water containing bacteria and sterilization of membrane can be realized. Meanwhile, the membrane fouling caused by bacterial growth can be inhibited. In this way, this innovative membrane has the ability to maintain great filtration and sterilization ability during long-term operation, and thus, having great potential to be used as an effective, convenient, practical, and safe POU water-treatment device.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Xiaoming Xu,Guoyan Hua,Yuxuan Chen,Yanhong Zhang,Zepeng Zhang,Weiben Yang,Fuqiang Liu,Aimin Li
Traditional polyamide nanofiltration membranes suffer from permeability-selectivity trade-off limitation and unsatisfactory rejection for divalent cations. Herein, a novel dually charged membrane was constructed by incorporating positively charged UiO-66-(NH 2 ) 2 into the negatively charged polyamide layer. Thanks to the customizable nanochannels of metal-organic frameworks, the amino-rich nanochannels of UiO-66-(NH 2 ) 2 could be fabricated through a ligand replacement strategy. UiO-66-(NH 2 ) 2 played a crucial role in the enhanced rejection of divalent cations, meanwhile negatively charged polyamide surface guaranteed the efficient Na 2 SO 4 rejection. Satisfactory rejections of CaCl 2 (96.07 %) and Na 2 SO 4 (90.62 %) were achieved simultaneously by optimal TFN-D5. Meanwhile, TFN-D5 owned the greatly-improved water permeance of 19.44 LMH/bar, which was about 1.5 times better than that of the TFC-control. Calculations based on density functional theory further confirmed UiO-66-(NH 2 ) 2 rejected Ca 2+ efficiently since the migration energy barrier across UiO-66-(NH 2 ) 2 was an order of magnitude higher than that of UiO-66-NH 2 and UiO-66. Moreover, the desirable rejections were beyond 94 % towards many divalent cation salts including MgCl 2 , NiCl 2 , PbCl 2 , MnCl 2 , CdCl 2 and ZnCl 2 . Thus, this work provided an efficient way to realize the synergistic removal of both divalent cations and anions.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Yuting Qian,Wenrou Tian,Jun Han,Najun Li,Dongyun Chen,Qingfeng Xu,Hua Li,Jianmei Lu
Catalytic oxidation of HCHO is often limited by the serious recombination of carriers in photocatalysts and the high cost of thermal catalysts based on precious metals. Herein, Bi 4 Ti 3 O 12 nanosheets enriched with bismuth vacancies were synthesized and decorated by UiO-66-NH 2 to obtain VBiTO@NU-66 for efficient removal of HCHO via piezocatalytic oxidation. The Bismuth vacancies in VBiTO enhanced the asymmetry of the crystal structure and introduced the atomic-level channels for energy and electron transfer. After loading UiO-66-NH 2 , the adsorption ability was substantially improved by the formation of Schiff-base covalent bonds between HCHO and –NH 2 . Under the joint action of adsorption and piezocatalysis, piezocatalytic oxidation rate of 300 mg/m 3 HCHO by VBiTO@NU-66 was as high as 95.1% within 3 h, which was 6 times of that of pure BiTO nanosheets. This work offers a novel tactics for the efficient purification of gaseous environmental pollutants.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 41
·93877-93891
·
IF 5.8
Zhang Xiaoting,Han Xiaoyu,Liu Yang,Han Runping,Wang Rong,Qu Lingbo
One green adsorbent, UiO-66-NH 2 modified peanut shell (c-PS-MOF), was prepared in a green synthetic route for improving the capture level of aspirin (ASP) and fluoride ion (F – ). The adsorption properties of c-PS-MOF were evaluated by batch experiments and its physicochemical properties were explored by various characterization methods. The results showed that c-PS-MOF exhibited a wide range of pH applications (ASP: 2–10; F – : 3–12) and high salt resistance in the capturing processes of ASP and F – . The unit adsorption capacity of c-PS-MOF was as high as 84.7 mg·g –1 for ASP as pH = 3 and 11.2 mg·g –1 for F – under pH = 6 at 303 K from Langmuir model, respectively. When the solid–liquid ratio was 2 g·L –1 , the content of ASP ( C 0 = 100 mg·L –1 ) and F – ( C 0 = 20 mg·L –1 ) in solution can be reduced to 0.48 mg·L –1 and 1.05 mg·L –1 separately. The recycling of c-PS-MOF can be realized with 5 mmol·L –1 NaOH as eluent. Analysis of simulated water samples showed that c-PS-MOF could be used to remove ASP and F – from actual water. The c-PS-MOF is promising to bind ASP and F – from rivers, lakes, etc. Graphical Abstract
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