WOOD SCIENCE AND TECHNOLOGY
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2026
·Vol. 60
·期 5
·81
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IF 3.2
Huang Changzhu,Zhu Yaqin,Luo Yilong,He Bin,Wu Yunfei,Zhang Chunmei,Duan Gaigai,Han Xiaoshuai,Zhou Rongfei,He Shuijian,Jiang Shaohua
Efficient CO 2 capture remains challenging due to limited adsorption capacity and slow kinetics of conventional materials. Herein, we report a strong–weak acid modulation strategy for the in situ growth mesoporous UiO-66-F 4 within the aligned carbonized wood channels, yielding a hierarchical MOF–carbon composite denoted as meso-UiO-66-F 4 @CP. Dual-acid regulation enables highly uniform and controlled MOF growth under environmentally friendly aqueous conditions, avoiding the use of toxic organic solvents and ensuring a sustainable synthesis route. This composite effectively combines the macroporous framework of carbonized wood with the intrinsic micropores and mesopores of UiO-66-F 4 , establishing a hierarchical pore network that significantly enhances CO 2 diffusion, mass transport, and overall adsorption efficiency. Furthermore, the introduction of fluorinated linkers strengthens dipole–quadrupole interactions, generating abundant high-affinity adsorption sites specifically tailored for CO 2 molecules. Under the present experimental conditions, meso-UiO-66-F 4 @CP exhibits a CO 2 uptake of 38 cm 3 g⁻ 1 (approximately 1.70 mmol g⁻ 1 ) at 298 K and 1 bar, together with a measured adsorption rate of 0.085 mmol g⁻ 1 min⁻ 1 . This work provides a sustainable strategy for constructing hierarchical MOF–carbon composites with tailored pore structures and surface chemistry for CO 2 capture applications.
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高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Ke Han,Jiankang Ren,Boyan Sun,Xiaomei Wang,Qian Ran,Haiyang Jiang
A novel phage HH3 of E. coli was isolated and characterized. • A colorimetric sensor was developed for E. coli detection within 35 min. • The biosensor shows high sensitivity and accuracy in various food and water matrices. • The biosensor exhibited a wide linear range and a low LOD of 3.2 CFU/mL. • It distinguishes viable E. coli from dead cells, beyond conventional methods. A phage HH3-functionalized Ce-UiO-66-NH₂ nanozyme-based colorimetric biosensor was developed for the quantification of viable Escherichia coli ( E. coli ), overcoming the drawbacks of slow detection and inadequate live/dead bacterial discrimination in conventional analytical methods. The proposed platform achieves target detection within 35 min, with a low limit of detection (LOD) of 3.2 CFU/mL and satisfactory spiked recoveries ranging from 82.75% to 122.06%. Mechanistically, Ce-UiO-66-NH₂ exhibits intrinsic oxidase-like activity that directly catalyzes the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) to blue-colored oxTMB. The color intensity of this chromogenic reaction is positively correlated with E. coli concentration, enabling quantitative analysis. Benefiting from the specific recognition capability of phage HH3, the biosensor shows negligible responses to non-host bacteria and heat-inactivated E. coli . This distinctive advantage cannot be achieved by antibody- or PCR-based strategies. This nanozyme-phage platform outperforms most reported sensors and possesses promising potential for rapid and selective quantification of viable E. coli in complex food and environmental matrices. Download: Download high-res image (252KB) Download: Download full-size image
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Journal of Physical Chemistry C
·
2025
·
IF 3.2
Yanan Qiao,Wenqin Yang,Daqian Xiao,Houde She,Xiaoping Chen,Jingwei Huang,Lei Wang,Qizhao Wang
Titanium dioxide (TiO2) is considered a promising metal oxide due to its good stability and appropriate conduction band potential. However, photocatalytic carbon dioxide reduction solely with TiO2 is still limited by the low solar energy conversion efficiency. To enhance the photocatalytic carbon dioxide reduction performance, researchers synthesized a composite material based on Er-doped TiO2 and Ce-modified UiO-66(Zr) using a simple solvent evaporation method. The experimental results reveal that compared with pristine UiO-66, this composite material exhibits a significantly improved CO2 conversion rate and product selectivity. The excellent activity of this catalyst is attributed to the direct Z-type heterojunction, which greatly improves photogenerated charge separation. Furthermore, UiO-66 (Zr/Ce)/Er-TiO2 (henceforth U1(0.5% Er-T3)) composite material exhibited excellent cycling stability in five consecutive stability tests, indicating long-term application potential. This research underscores the importance of designing and modifying MOF-based photocatalysts for efficient CO2 reduction and provides valuable insights for the development of sustainable energy conversion systems.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.6
Yuan Jin,Yanhong Zhang,Fuzhi Li,Guangli Li
To address microfibrillated cellulose (MFC) separator shortcomings in lithium-ion flux homogenization and dendrite growth due to uneven ion distribution, this study developed a UiO-66-MFC composite separator with 20-30% loading. The hierarchical pores (0.8-1.2 nm micropores and 2-50 nm mesopores) enable selective Li + screening and rapid transport, while MFC's hydroxyl groups form hydrogen bonds with amino groups of UiO-66-NH 2 , enhancing mechanical strength to 16 MPa at a 20% loading. Density functional theory (DFT) calculations further reveal a strong interaction between -NH 2 and PF 6 - , with a binding energy reaching -8.622 keV. This interaction effectively restricts the migration of PF 6 - , promotes the desolvation process of lithium salts, accelerates Li⁺ transport, and fosters more uniform lithium deposition behavior. The electrochemical test results indicate that the 20% UiO-66-NH 2 /MFC separator demonstrates the most favorable overall performance. After cycling for 1000 h at a current density of 1 mA cm -2 , the overpotential of the Li/Li symmetrical battery remains stable at ± 0.10 V, suggesting effective inhibition of lithium dendrite growth. When paired with the LiFePO 4 cathode, the battery exhibits a capacity retention rate exceeding 90% after 100 cycles, while the coulombic efficiency approaches 100%. This study significantly improves the ion conduction and interface stability of the separator by optimizing the MOF ratio, thereby offering a novel strategy for the material design of high-safety and long-life lithium-ion batteries. This MOF-incorporated MFC strategy significantly enhances separator ion conduction and stability, offering a novel approach for safe, long-life lithium-ion batteries.
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WATER RESEARCH
·
2025
·
IF 12.4
Yue Li,Jie Wang,Ping Lin,Shushu Jia,Lijuan Li,Yongxin Li,Ce Wang,Xiang Li
Pharmaceuticals and personal care products (PPCPs) pose significant ecological risks due to their widespread occurrence, persistence, and potential to disrupt microbial ecosystems. Conventional adsorbents often suffer from limited adsorption capacity, bacterial fouling, and poor reusability, necessitating the development of advanced multifunctional materials. Herein, we present a novel flexible branch-pinecone nanostructured UiO-66-MCA composite nanofiber membrane (UMNM) engineered through a combination of electrospinning and self-assembly process, where pinecone-like MCA structures grow on UiO-66 wrapped nanofibers. This distinctive hierarchical architecture synergistically enhances PPCPs adsorption and antibacterial properties. The UMNM demonstrates exceptional adsorption performance for salicylic acid (SA), achieving a capacity of 154.21 mg/g, with kinetics and isotherms following the pseudo-second-order and Freundlich models, respectively. Notably, the membrane maintains robust adsorption under complex wastewater conditions, exhibiting excellent regeneration and anti-interference capabilities. In dynamic filtration tests, the UMNM removes 80.89 % of SA from raw sewage while reducing chemical oxygen demand (COD) from 149.17 mg/L to 48.48 mg/L, meeting wastewater discharge standards. Furthermore, the UMNM achieves bacteriostatic rates of 72.20 % against Escherichia coli ( E. coli ) and 84.58 % against Staphylococcus aureus ( S. aureus ), mitigating biofouling risks. This study presents an innovative MOFs-HOFs composite membrane that integrates multifunctional PPCPs removal, bacteriostatic activity, and real-world wastewater applicability, offering a breakthrough solution for emerging aquatic contaminants.
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Jing Wang,Yakun Teng,Shushu Jia,Wenyan Li,Tianyi Yang,Ya Cheng,Hao Zhang,Xiang Li,Lijuan Li,Ce Wang
The successful development of a cost-effective and efficient adsorbent is crucial for the optimal treatment of pharmaceutical sewage. In this study, a UiO-66(Hf)–NH 2 nanocrystal modified composite nanofiber membrane (HfPNFM) was synthesized through electrospinning and solvothermal techniques, for the removal of salicylic acid (SA). The in-situ growth of UiO-66(Hf)–NH 2 on the nanofibers led to a significant increase in the specific surface area of the composite nanofiber membrane. Furthermore, HfPNFM demonstrated exceptional flexibility and reusability, with the removal efficiency of SA still at 96.85 % even after ten cycles. The adsorption process of SA onto HfPNFM was well described by the pseudo-second-order kinetic model and Langmuir isotherm model, with a maximum adsorption capacity of 128.21 mg/g. In dynamic adsorption experiments, HfPNFM effectively removed 100 % of SA at a concentration of 50 mg/L. The chemical oxygen demand (COD) concentration of SA was reduced from 165.89 mg/L to 41.47 mg/L by two layers of HfPNFM filtration, below the standard for pharmaceutical wastewater discharge (GB: 21904-2008). X-ray photoelectron spectroscopy (XPS) revealed that electrostatic interactions, π-π interactions, hydrogen bond interactions, and metal complexation interactions between SA and HfPNFM were responsible for the adsorption. This highly effective composite nanofiber membrane has promising potential for pharmaceutical wastewater treatment.
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ChemNanoMat
·
2023
·Vol. 9
·期 5
·e202300051
·
IF 3.8
Qiankun Xu,Yaru Li,Wen Ji,Jun Mei,Xianbiao Wang
Graphical TiO 2 hollow sphere/UiO-66-NH 2 heterostructures were successfully synthesized by an adsorption-induced in-situ solvothermal growth strategy. The integration of TiO 2 and UiO-66-NH 2 could construct a type-II heterojunction to broaden the absorption range of light and suppress the recombination of photoproduced electrons and holes, thus boosting the photoreduction activity toward Cr(VI) of TiO 2 /UiO-66-NH 2 . Water contamination caused by highly toxic Cr(VI) should be resolved imminently with a more efficient photocatalytic approach. The interaction between photocatalyst heterostructure is critical for charge separation which largely affects the photocatalytic efficiency. Herein, TiO 2 hollow sphere/UiO-66-NH 2 (TiO 2 /UiO-66-NH 2 ) heterostructures were successfully synthesized by an adsorption-induced in-situ solvothermal growth strategy. The UiO-66-NH 2 particles were well dispersed on TiO 2 hollow spheres by solvothermal treatment of Zr 4+ adsorbed TiO 2 hollow spheres with NH 2 -BDC ligand. The photocatalytic activities of TiO 2 /UiO-66-NH 2 heterostructures were investigated by reduction of Cr(VI) with visible light irradiation. With the introduction of UiO-66-NH 2 , the reduction efficiency toward Cr(VI) by TiO 2 /UiO-66-NH 2 heterostructures reached 89% after 180 min of irradiation, which is much higher than those of TiO 2 hollow spheres (10%) and UiO-66-NH 2 crystals (29%). Moreover, the TiO 2 /UiO-66-NH 2 heterostructures display good regeneration ability and can still maintain 70% of Cr(VI) removal ability after four cycles. The integration of TiO 2 and UiO-66-NH 2 could construct a type-II heterojunction to broaden the absorption range of light and suppress the recombination of photoproduced electrons and holes. As a result, such unique composite structure significantly enhance the photocatalytic performance towards Cr(VI) reduction. This work not only inspires a new approach for in-situ solvothermal synthesis of semiconductor@MOFs composites, but provides a novel photocatalyst for highly efficient removal of Cr(VI) from wastewater.
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JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2023
·Vol. 98
·期 5
·1222-1237
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IF 3.4
Minjuan Chen,Jianxian Zeng,Zhenwei Wu,Rui Zhang,Zhengqiu Yuan,Xiaoping Huang,Kai Jin,Shengkai Yang,Yahong Li
BACKGROUND Developing new materials for separating Sr 2+ ions from aqueous solutions is significant. Metal–organic frameworks are regarded as excellent adsorption materials due to their high specific surface area and abundant adsorption sites. In this work, a novel UiO-66-(COOH) 2 -based mixed matrix membrane (MMM) was prepared by combining UiO-66-(COOH) 2 with polyethersulfone (PES) for separating Sr 2+ . RESULTS The MMMs were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy and water contact angle and water flux measurements. Various contents (0–2.5 wt%) of UiO-66-(COOH) 2 were blended into PES membranes. The results showed that incorporating UiO-66-(COOH) 2 significantly increased membrane porosity and water flux, and reduced contact angle. The membrane (M4) that contained 2.0 wt% UiO-66-(COOH) 2 exhibited an excellent morphology and the highest Sr 2+ uptake capacity (111.9 μg cm −2 ). Adsorption kinetics and isotherms showed that the nature of the adsorption of the membrane towards Sr 2+ was chemisorption, homogeneous and monolayer. Compared with the adsorption capacity of UiO-66-(COOH) 2 towards Sr 2+ in adsorption packed column, these values of M4 decreased by about 75% during membrane filtration. The rejection performance of MMMs increased with increasing UiO-66-(COOH) 2 content. Breakthrough curves of MMMs were not correlated with flow rate in the range of 10–180 mL h −1 . The presence of Ca 2+ and Mg 2+ ions did not obviously affect the separation of Sr 2+ , but Pb 2+ had a significant influence. Furthermore, after five adsorption–desorption experiments, the regeneration remained at about 95% of initial values. CONCLUSIONS The MMMs showed good adsorption capacity for Sr 2+ and exhibited favorable reusability and stability. © 2023 Society of Chemical Industry (SCI).
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Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 44
·23666-23674
·
IF 14.511
Mingna Chu,Yang Li,Ximing Chen,Guangyao Hou,Yan Zhou,Hongjun Kang,Wei Qin,Xiaohong Wu
Solar-driven carbon dioxide (CO2) reduction into valuable chemicals or feedstock is of great significance for the sustainable development of the environment and energy. Herein, we presented a photo-induced reduction method to synthesize catalysts by anchoring Zn single atoms (SAs) on UiO-66-NH2. Impressively, UiO-66-NH2-0.7Zn SAs had excellent performance in converting CO2 to carbon monoxide (CO), which was about a 5-fold improvement compared to pristine UiO-66-NH2 without a photosensitizer or hole sacrificial agent under UV-vis light. The remarkable photocatalytic CO2 reduction performance was attributed to the built-in electric field construction by anchoring highly dispersed Zn SAs on UiO-66-NH2. The built-in electric field could effectively promote the separation of photogenerated charges and activate CO2. Density functional theory (DFT) calculations revealed that low-coordination Zn–N2 sites could dramatically enhance the formation of COOH*, which was the rate-limiting step for CO generation. This study created a new opportunity to develop high-efficiency photocatalysts containing single-atom sites for photocatalytic CO2 reduction.
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JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Bo Pang,Fujun Cui,Wanting Chen,Xiaozhou Wang,Ruohan Du,Xuemei Wu,Xiaoming Yan,Yan Dai,Gaohong He
Sieving of H + /V n + ions is essential to vanadium redox flow battery (VRFB). Herein, the interconnected hierarchical proton sieving-conductive channels are constructed through the graft of sulfated UIO-66 (UIO–66OSO3) along the polybenimidazole (PBI) backbone with the highly reactive and acidic sulfate ester functional group. Highly porous UIO-66OSO3 provides numerous angstrom scale sieving channels (about 5 Å) to transport proton and repel vanadium ion , and the sulfated groups ended flexible side chains are densely bonded to UIO-66 and aggregate into broad nanoscale ionic clusters (∼8 nm) for fast proton conduction between UIO-66OSO3 nanoparticles . The as-prepared membrane exhibits low vanadium permeability (7.88 × 10 −9 cm 2 s −1 ) and area resistance (0.23 Ω cm −2 , lower than that of Nafion 212). High energy efficiency (86.1%) and low discharge capacity decay (0.15% per cycle) are achieved even after 100 charge-discharge cycles at 100 mA cm −2 , and the battery keeps running for 2000 cycles without morphological and chemical changes . The VRFB proprieties are far superior to Nafion 212 membrane VRFB proprieties (energy efficiency 74.9%, decay rate 0.71% per cycle), and also surpasses most recently reported porous, dense and hybrid ion conductive membranes.
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2022
·
IF 3.898
Xueting Liu,Chunhui Hu,Jingjing Wu,Peng Cui,Fengyu Wei
In this study, a series of metal–organic frameworks (MOFs) NH 2 -UiO-66- x HAc catalysts were synthesized by solvothermal method using acetic acid (HAc) as a modulator, and were applied to the cycloaddition of CO 2 and epichlorohydrin (EPIC) under ambient pressure. Influences of the modulation by HAc on morphologies and structures of the MOFs are demonstrated via PXRD, FESEM, FTIR, N 2 adsorption–desorption, XPS and 1 H NMR characterizations. The results show that the MOFs containing mesoporous pores can be prepared by adjusting the concentration of HAc. By optimizing the amount of HAc added, the specific surface area of NH 2 -UiO-66-8HAc is as high as 879.17 m 2 ·g −1 , which is 28.3% higher than that of the original MOFs. And the evaluation of catalytic performance showed that HAc modulation enhanced the activity of NH 2 -UiO-66- x HAc under mild conditions. The exposure of Lewis acid sites, increased specific surface area and porosity via the modulation of HAc defective ligand can be supposed the key factors to determine the enhanced catalytic activities. In addition, considering the influence of gas concentration on the reaction, the concept of TOP (Turnover of Pressure, defined as the mass of conversions of a unit mass catalyst under unit pressure and unit time) was first proposed in this article.
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JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Zhihong Lin,Ziyi Yuan,Kaifang Wang,Xuezhong He
Novel mixed matrix membranes (MMMs) with superior CO 2 /N 2 separation properties are of great importance for post-combustion CO 2 capture from flue gas . Metal-organic frameworks (MOFs) as one of the most attractive porous fillers for MMMs fabrication, are considered to provide a solid molecular sieving mechanism for enhancing CO 2 /N 2 selectivity. However, it causes the reduction in gas permeability and limits its further industrialization. Herein, we proposed a new strategy for filler functionalization by doping silver ions (Ag + ) into UiO-66-NH 2 nanoparticles through the double-solvent method and used for the preparation of advanced MMMs. The double-solvent method is benefits for the enrichment of Ag + in the hydrophilic pores of UiO-66-NH 2 . As a result, the prepared novel MMMs called Ag + @UiO@PIM-1 with the polymers of intrinsic microporosity (PIMs) as polymer matrix , show outstanding CO 2 permeability. According to the mixed gases (CO 2 /N 2 = 10:90) permeation experiments under 25 °C and 2 bar, the membrane with 30%Ag + @10%UiO loading achieves more than 65% increase in CO 2 /N 2 selectivity (∼30) and 120% in CO 2 permeability (>15,000 Barrer) compared to the pristine PIM-1 membrane. By optimizing the Ag + doping amount and Ag + @UiO loading content, the separation performance exceeds the 2019 CO 2 /N 2 upper bound. To figure out the separation mechanism, the pore texture properties and CO 2 affinity of the functional filler (Ag + @UiO) together with the membrane structure were characterized by XPS , PXRD , SEM, gas sorption , etc. The synergistic mechanisms by combing CO 2 facilitated transport and molecular sieving from pore regulation were identified to enable advanced CO 2 /N 2 membrane separation .
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