APPLIED ORGANOMETALLIC CHEMISTRY
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2024
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IF 3.7
Fangfang Li,Xiaofang Hou,Ying-Hua Zhou
CO 2 chemical fixation offers a feasible approach for carbon mitigation and high-value utilization, but it is still challenging to develop an efficient catalyst for CO 2 conversion into cyclic carbonate. Herein, the triethylenediamine-derived dicationic ionic liquids (DIL-X, X = Cl, Br, and I) were grafted into UiO-66 linkers through self-assembly of Zr 4+ ions and the mixed ligands of terephthalic acid and DIL-bearing dicarboxylic acid, resulting in UiO-66-DIL-X n , ( n designated as molar amount of the feeding DIL-X). Their catalytic performance was evaluated by the epoxide cycloaddition reaction in the absence of solvent and cocatalyst. Among them, the UiO-66-DIL-Cl 0.4 catalyst exhibited outstanding performance, with a chloropropene carbonate yield of 92% and a high selectivity of 99% under 0.1 MPa CO 2 at 110 °C for 16 h. Its high activity could be ascribed to the cooperativity among Lewis acidity of MOF nodes, the enhanced CO 2 absorption, and the strong nucleophilicity offered by halogen ions of ionic liquid-modified MOF. Moreover, UiO-66-DIL-Cl 0.4 presented excellent recyclability and substrate extension. A potential catalytic mechanism for the epoxide-CO 2 cycloaddition into cyclic carbonate has been proposed. This work will shed light on the rational design of functionalized MOFs-based catalysts for CO₂ utilization.
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高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jie Qin,Wenhui Yao,Liang Wu,Young-Rae Cho,Fusheng Pan
The conventional slippery liquid-infused porous surfaces (SLIPSs) provide relatively limited corrosion protection and self-healing performance for AZ31 Mg alloys. To this end, 8-hydroxyquinoline (8-HQ) was incorporated into a zirconium-based metal–organic framework UiO-66 through coordination (8-HQ@UiO-66), which was then dispersed into silicone oil to fabricate nanoparticle-enhanced-SLIPSs (8-HQ@UiO-66-SLIPSs). Especially, the influences of 8-HQ@UiO-66 concentration on the surface morphology, surface hydrophobicity, and corrosion resistance were studied. It was found that the surface hydrophobicity first increased and then decreased with increasing concentration, showing the highest water contact angle of 121.2° at a concentration of 1 mg mL–1 (8-HQ@UiO-66-SLIPS-1). This was attributed to the development of well-constructed hierarchical micro/nanostructures. Moreover, it also exhibited the best anticorrosion property, with the lowest corrosion current density of 1.24 × 10–10 A cm–2 and the highest impedance modulus of 9.88 × 108 Ω cm2 at 0.01 Hz, primarily associated with the synergistic interaction of 8-HQ and UiO-66. Further, the self-healing performance was evaluated using the scanning vibration electrode technique (SVET), verifying the superior self-healing performance of 8-HQ@UiO-66-SLIPS-1. Hence, the nanoparticle-enhanced-SLIPSs exhibit considerable potential in the corrosion protection of Mg alloys, thereby accelerating their extensive applications in industry.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
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IF 8.1
Lin Chen,Ruichao Zhu,Han Gao,Jin Wu,Zhiwei Yin,Chuqing Cao
The recycling of lithium-ion batteries (LIBs) presents significant challenges due to the absence of robust acid-resistant membranes capable of selective ion separation under harsh acidic conditions, commonly encountered in hydrometallurgical processes. This study developed a novel PSA-BTSC (polysulfonamide with 1,3,5-benzenetrisulfonyl chloride) composite membrane integrated with UiO-66-NH 2 nanoparticles, aiming to enhance both acid resistance and ion separation performance. Experimental results demonstrated that the PSA-BTSC membrane achieved a Li+/Co 2+ separation factor of 28.02 and retained 85.8 % permeability for Li + while maintaining 91.1 % rejection for Co 2+ after 30 days of immersion in 1 M HCl, showcasing superior acid resistance compared to conventional PA-TMC (polyamide with 1,3,5-benzenetricarbonyl trichloride) membranes, whose Co 2+ rejection dropped drastically to 19.4 %. Surface charge analysis and pore size distribution indicated that PA-TMC membranes suffered partial hydrolysis and pore enlargement, resulting in a reduction of separation efficiency. In contrast, the sulfonyl groups in PSA-BTSC membranes conferred enhanced stability against acid-induced degradation. Additionally, density functional theory (DFT) simulations highlighted the higher activation energy barrier (2.63 eV) for sulfonamide bond hydrolysis compared to amide bonds (1.57 eV), emphasizing the superior stability of the PSA structure. These findings highlighted the superior stability and acid resistance of PSA-BTSC membranes, positioning them as promising materials for applications requiring high stability in acidic environments, such as the processing of lithium battery leachates.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Xiaocan Zhang,Jiashu Long,Mengxin Wang,Yiran Liu,Huixiao Ma
Blending metal-organic frameworks to optimize proton transport pathways is one of the strategies to improve the proton conductivity of proton exchange membranes (PEM). In this paper, amino-sulfonic acid bifunctionalized UiO-66 (NUS) by one-pot solvothermal method is synthesized, and sulfonated poly (ether ether ketone)/NUS-X (SPEEK/NUS-X) hybrid membranes are prepared by mixing NUS into SPEEK matrix. Among them, SPEEK/NUS-1.5 has the highest proton conductivity (177.76 mS cm −1 , 70 °C, 100% RH) and maintain a 300 h conductivity stability. And its maximum power density was 423.2 mW cm −2 , exceeding pristine SPEEK by 2.20 times. Compare to the pristine SPEEK membrane, it is interesting to note the disappearance of SAXS scattering peak of SPEEK/NUS-1.5. It is speculated that this phenomenon was caused by the generation of acid-base pairs between –NH 2 and –SO 3 H, and the improved hydrogen bonding network provides more proton transport channels and immobilizes sulfonic acid groups for improved durability. The resultant proton conductivity is stable over 300 h with about 90% retention.
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CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Chenxi Liu,Xiao Wang,Xiangze Jia,Wanlin He,Shaobo Zhang,Hongsheng Liu
To meet the demand for nondestructive detection, we developed a truly human-wearable glove biosensor, which can be applied for in-situ analysis of pesticides on crop surfaces during the picking process. Herein, the Burkholderia cepacia (BCL)@UiO-66/Pro functionalized Kevlar-based laser-induced graphene (LIG) three-electrode glove sensing system was equipped with biocompatible semisolid electrolyte. In this system, Kevlar-based LIG electrodes showed the lowest sheet resistance of 28.26 Ω/sq. and I D /I G ratio value of 0.163 with optimal laser power of 9 %. Importantly, the BCL@UiO-66/Pro modified on Kevlar-based LIG electrode enhanced the catalytic efficiency of the BCL, the absolute value of the redox potential increases from the −0.412 V to −0.664 V due to an increase in the immobilization efficiency of BCL on UiO-66 after proline modification. In addition, the Kevlar-based wearable glove biosensor exhibited high repeatability, selective and sensitive electrochemical sensing of MP at concentrations ranging from 5 to 40 μM with a low detection limit of 0.84 μM. During the 10-day storage stability test, the fabricated Kevlar-based LIG biosensor demonstrated good reusability and excellent stability for MP detection with retention of more than 96 % of its initial response. Such wearable Kevlar-based glove biosensor could be a transformative approach for the in-situ analysis of pesticide residue on crops, which could also promote future precision agriculture development.
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COMPOSITES PART B-ENGINEERING
·
2024
·
IF 12.7
Tianchen Zhang,Yijiao Xue,Fei Song,Zheng Pan,Meng Zhang,Yonghong Zhou
As we all know, in the field of safety protection, it is crucial to develop protective materials with fire-retardant and vibration-damping properties. However, it is a challenging task to integrate different properties into a single polymer. To meet this challenge, we successfully developed a functionalized nano flame retardant (UiO-66-NH 2 @DOPO) by modifying UiO-66-NH 2 with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). This flame retardant was then incorporated into a porous polyurethane foam (MPUF) synthesized from a bio-based polyol, resulting in a bio-based MPUF composite with excellent vibration-damping, fire-retardant, smoke-suppressing, and anti-dripping properties. Due to the intumescent fire-retardant system formed by UiO-66-NH 2 and DOPO, when the additional amount of UiO-66-NH 2 @DOPO reached 25 %, the LOI value of the MPUF composite material was increased to 31.2 %, and the total smoke production (TSP) was reduced by 80.64 %. In addition, it obtained a V-0 rating in the UL94 test and exhibited excellent anti-dripping properties. In addition, owing to the reinforcement effect and stress dissipation of UiO-66-NH 2 @DOPO, the MPUF composites exhibited excellent energy dissipation and vibration-damping properties (maximum loss factor of 1.32 at 1.0 Hz). This new bio-based MPUF composite material has broad application prospects. It can become an innovative self-supporting vibration-damping and protective material in sports, transportation, and aerospace.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
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IF 7.2
Siqi Fang,Zhengang Bu,Yuanlin Zhan,Wenzhuo He,Yibin Huang,Jianhua Li
The indiscriminate of tetracycline (TC) has led to significant environmental and health concerns, particularly the proliferation of antibiotic resistance. This study presents a visible-light photocatalytic composite membrane with a Z-scheme heterojunction to improve TC removal efficiency and address the challenge of catalyst powder recovery in practical applications. Firstly, the PI/NH 2 -UiO-66 (PNs) composite photocatalyst was synthesized via a one-step thermal solvent method. Subsequently, the PVDF/MXene/PI/NH 2 -UiO-66 (PMPNs) composite fiber membrane was successfully fabricated by stably loading the PNs and MXene onto PVDF fiber membranes through electrospinning. Under visible light irradiation, the removal efficiency of TC by the PMPN1.5 composite fiber membrane could reach 86.07% through the combined effects of filtration, adsorption, and photocatalysis. Even after three cycles, the recovery rate of the PMPN1.5 membrane could still reach 86.16%. The enhanced photocatalytic performance was due to the Z-scheme heterojunction between PI and NH 2 -UiO-66. This heterojunction structure enhanced the redox capability of the photocatalyst. Additionally, the incorporation of MXene facilitated effectively charged carrier transfer at the heterojunction interface, prolonging the electron-hole separation time and further improving the photocatalytic capability. This study successfully integrates photocatalytic technology with membrane separation to develop a visible light-responsive composite fiber membrane with considerable potential for treating antibiotic-contaminated wastewater. The developed membrane not only mitigates fouling but is also easily recyclable, minimizing the risk of secondary pollution.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Xinnan Ma,Juan Han,Jiacong Wu,Yang Zhou,Chunmei Li,Lei Wang,Yang Lu,Yun Wang
Efficiently enhancing hydrogen peroxide (H 2 O 2 ) production via photocatalysis remains challenging. This study employed genetic engineering to express His-tagged superoxide dismutase (His-SOD), which was selectively anchored onto the coordinatively unsaturated metal sites of etched UIO-66-NH₂ (UIO-66-NH 2 etch ) through coordination-driven assembly. The synergistic effect between His-SOD and UIO-66-NH 2 etch significantly enhanced both the stability and substrate affinity of the enzyme, while simultaneously boosting the photocatalytic activity of the MOF. Compared to its free counterpart, the immobilized His-SOD exhibits a 62 % increase in catalytic efficiency and a more than threefold extension in thermal deactivation half-life. The fabricated UIO-66-NH 2 etch @His-SOD composite achieved an impressive H 2 O 2 production rate of 3890.37 μmol·g −1 ·h −1 , exceeding that of the pristine UIO-66-NH 2 by over 2.5 times within 1 h and maintaining a 1.7-fold enhancement after 4 h. Owing to SOD's inherent superior antioxidative capabilities, the composite material demonstrates exceptional recyclability, retaining 95 % of its initial catalytic activity after four consecutive cycles. This study achieves specific immobilization of functionalized fusion proteins onto photocatalysts, and represents the first introduction of SOD into photocatalytic H 2 O 2 synthesis. This advancement provides valuable insights for the future integration of biocatalysts and synthetic photocatalysts, opening new avenue for research on photo-enzyme coupled catalysis.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Ting Sun,Chuanyezi Cai,Jiacheng Guo,Gengqi Tong,Yu He,Xi Chen,Lu Ye,Jianjun Zhang,Sude Ma
As dielectric film as the core device of capacitors, how to enhance its dielectric and energy storage performance is crucial for the application of film capacitors. To this end, we propose a solvothermal synthesis of metal-organic framework (MOF) material UiO-66-NH 2 to explore the potential application of MOF materials in the field of dielectric energy storage. BaTiO 3 nanoparticles and MOF fillers were selected to be introduced into the PVDF/PI matrix, and nanocomposite films were prepared by the spin-coating process, which showed a strong bonding at the micro-interface of the film and a uniform macroscopic thickness without obvious aggregation. The high porosity of UiO-66-NH 2 and the high dielectric constant of BaTiO 3 , as well as the high breakdown strength E b of the polymer matrix are utilised to synergistically promote the energy density and maintain good charge/discharge stability. Notably, the BU-X/PVDF/PI nanocomposite films demonstrated good energy storage performance and stable charge/discharge efficiency η. The results show that the BU-0.5/PVDF/PI nanocomposite film has an E b of 2190 kV/cm, an energy storage density of 3.73 J/cm 3 , and stable η ranging from 60 % to 94 %, which are superior to the pure BaTiO 3 /PVDF/PI nanocomposite film in terms of overall performance. In addition, the dielectric loss of the BU-0.5/PVDF/PI nanocomposite film is as low as 0.022. These findings indicate the good prospects for the development of MOF materials in the field of energy storage.
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COMPOSITES PART B-ENGINEERING
·
2020
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IF 7.635
Shuangjiang He,Yingqing Zhan,Jiaxin Hu,Guiyuan Zhang,Shumei Zhao,Qingying Feng,Wei Yang
Multi-component pollutant-oil-water emulsion from the fast-growing industry seriously threatens the human health and ecological environment, which poses a huge challenge to membrane technology. Recently, 2D MXene materials have shown promising and potential candidates for functional separation membranes . Herein, for the first time, a multitasking hierarchical MXene@UIO-66-(COOH) 2 composite membrane supported on nylon 66 microporous substrate was designed via a facial strategy, which possessed high chemical stability and efficient multi-component pollutant-oil-water emulsion separation performance. The promising synergistic separation performance of various oil-in-water emulsions and dye, high antifouling resistance, and excellent recyclability of MXene@UIO-66-(COOH) 2 composite membrane originated from the inherent hydrophilicity , low oil adhesion feature, and hierarchical intercalation structure of membrane. Furthermore, the chemically stable MXene@UIO-66-(COOH) 2 composite membrane exhibited outstanding corrosion resistance under strong acid (3 M HCl), alkali (1 M NaOH) and salty (Saturated NaCl) solutions. Therefore, this work provides a powerful platform for designing stable and functional 2D membrane materials for multi-component pollutant-oil-water emulsion separation in harsh chemical environments.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Junkang Guo,Xiaohu Fan,Jiayuan Wang,Shenghui Yu,Minwang Laipan,Xinhao Ren,Chao Zhang,Lei Zhang,Yongtao Li
The design and synthesis of efficient adsorbents for recovery of precious metal from secondary resources are of great environmental and economic significance. In present study, an efficient and redox-active adsorbent (UiO-66-BTU) was fabricated by modifying Zr-MOF (Zirconium-based Metal Organic Framework) with bisthiourea for gold recovery in aqueous solution. It is indicated that Au(III) adsorbing onto UiO-66-BTU is an irreversible, favorable chemisorption process conformed to D-R model and pseudo-second-order model. The UiO-66-BTU showed significant adsorption ability (680.20 mg/g at pH 2.0) and high selectivity towards Au(III) in presence of various mixed ions in actual wastewater, which were mainly attributed to the Lewis soft–soft interaction, ion-exchange/electrostatic interactions, and redox reaction between Au(III) and S-containing functional groups. Notably, we demonstrated that the reduction of Au(III) to metallic gold as a dominant recovery mechanism involving the in situ confined nucleation, fusion and growth of AuNPs to branched Au precipitation, with Au(0) accounted for approximately 80% for the recycling products. Furthermore, the UiO-66-BTU membrane achieved similar high adsorption capacity and the membrane surface remains active to efficiently recovered metallic particles with an excellent repeatability at eight cycles of adsorption. The reduced Au particles formed isolated clusters with bigger size and regular hexagonal shape. Consequently, UiO-66-BTU has great potential for gold recycling in industrial practice.
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高影响因子
Frontiers of Chemical Science and Engineering
·
2022
·Vol. 16
·期 9
·1387-1398
·
IF 4.803
Han Yuyao,Xia Lei,Zhuang Xupin,Liang Yuxia
UiO-66-NH 2 is an efficient material for removing pollutants from wastewater due to its high specific surface area, high porosity and water stability. However, recycling them from wastewater is difficult. In this study, the cellulose nanofibers mat deacetylated from cellulose acetate nanofibers were used to combine with UiO-66-NH 2 by the method of in-situ growth to remove the toxic dye, rose bengal. Compared to previous work, the prepared composite could not only provide ease of separation of UiO-66-NH 2 from the water after adsorption but also demonstrate better adsorption capacity (683 mg·g −1 ( T = 25 °C, pH = 3)) than that of the simple UiO-66-NH 2 (309.6 mg·g −1 ( T = 25 °C, pH = 3)). Through the analysis of adsorption kinetics and isotherms, the adsorption for rose bengal is mainly suitable for the pseudo-second-order kinetic model and Freundlich model. Furthermore, the relevant research revealed that the main adsorption mechanism of the composite was electrostatic interaction, hydrogen bonding and π — π interaction. Overall, the approach depicts an efficient model for integrating metal-organic frameworks on cellulose nanofibers to improve metal-organic framework recovery performance with potentially broad applications.
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危险品化学品经营许可证（带存储）