Applied Materials Today
·
2026
·
IF 7
Junjian Yu,Xiangwei Li,Zhe Wang,Xiang Pei,Zetong Fan
Cu ions were introduced into defect sites of UiO MOF via post-functionalized modification. • The Cu-functionalized defective MOF synergistically improved gas separation performance of MMM under high pressure. • Experiments/simulation revealed the CO2 transport pathway, offering a new defect-engineered MOF design idea for separation. The incorporation of defect engineering in a metal-organic framework to prepare advanced MOF/Polymer mixed matrix membranes for CO 2 separation has become a new direction. However, the existence of defect engineering inevitably loses the selectivity enhancement of specific gas pair separation performance while opening the convenient door for gas diffusion. Herein, introducing Cu ions towards the UiO MOF defect to prepare functionalized defective UiO MOF materials. The Cu ions with CO 2 affinity maximize the proportion at the interface with the zirconia node, thus giving the material a higher CO 2 absorption capacity at high pressure. The prepared mixed matrix membranes (Cu/UiO-H 2 O/Pebax) break through the "trade-off" effect under high pressure (580.0 psi) and realize the synergistic improvement of CO 2 permeability and selectivity. Compared with low pressure (14.5 psi), the CO 2 permeability of Cu/UiO-H 2 O/Pebax mixed matrix membranes increased nearly two times, and the CO 2 /N 2 selectivity increased nearly 3.5 times. A thorough combined permeation test experiment/simulation characterization revealed the influence of the CO 2 transport pathway within the membrane, indicating the mechanism of Cu/UiO-H 2 O fillers on the permeability of mixed matrix membranes at high pressure. Notably, the post-functionalized of mixed matrix membranes with defect-engineered MOF materials provides a new idea for designing defect-engineered MOF materials in the separation field. Download: Download high-res image (247KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Yunian Chen,Zhufu Fu,Dewei Zhang,Zeyu Wu,Shanshan Gao,Boyu Han,Junyu Pan,Xi Gao,Shenghong Ju,Yuan Xue
Cu/ZnAl 2 O 4 is a promising alternative to conventional Cu/ZnO/Al 2 O 3 (CZA) catalysts because its higher structural stability suppresses sintering-induced deactivation. However, its performance remains limited by weak metal-support interaction (MSI). Here, Zr was incorporated into the ZnAl 2 O 4 support to regulate the interfacial electronic structure and create defect sites. The optimized catalyst, containing 6 wt% Zr in the support and 8 wt% Cu, achieved a methanol space-time yield of 310.61 g MeOH /kg cat /h at 260 °C, 38% higher than that of the Zr-free sample. It also showed much higher Cu-based activity and stability than CZA. Combined characterizations and DFT calculations reveal that Zr strengthens MSI, suppresses Cu sintering, increases surface oxygen vacancies, and enhances Cu + /Cu 0 synergy, thereby promoting the formate pathway and lowering the barrier of the rate-determining step, which leads to improved methanol synthesis performance.
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 12
·118358
·
IF 6.3
Qiu Zhang,Liying Pan,Xueyue Lyu,Chenyang Zhang,Xinrui Wang,Jiawei Qi,Guangdong Zhao
The hierarchical porous architecture of sugarcane peel was successfully replicated using a biological template method. The samples were fabricated via a sol-gel process combined with ambient pressure drying, and the Si-Zr-Al-Y system integrated with the biomass template was pyrolyzed at temperatures ranging from 700 °C to 1300 °C to obtain Si-Zr-Al-Y oxide ceramic composites. The evolution of the microstructure and phase composition of the Si-Zr-Al-Y system during pyrolysis was systematically investigated. The incorporation of biomass templates facilitated the retention of a relatively fine mesoporous structure (6.88 nm) and low thermal conductivity (0.035 W·m⁻¹·K⁻¹) up to 1100 °C, although pore coarsening and specific surface area reduction became evident at higher temperatures (1300 °C). Furthermore, the influence of processing temperature on specific surface area, pore size, and pore structure was examined in detail. This study not only establishes a foundation for future research but also provides insights into sustainable industrial waste management and contributes to global sustainable development strategies.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Miaomiao Tian,Haochen Shen,Cheng Chen,Libo Zhao,Wei Yu,Bisheng Li,Leihong Zhao,Hongjun Lin,Liguo Shen
A controllable secondary growth repairs stress cracks in MOF membranes. • Capillary-driven precursors enable in situ nucleation and epitaxial crack healing. • Post-healing generates dense, crack-free, hydrophilic and charged layers. • Repaired membranes achieve high rejection and ultrahigh water flux simultaneously. • XDLVO analysis shows that repulsive interactions improve membrane antifouling. Metal–organic framework nanosheet membranes are promising for next-generation separations but remain limited by stress-induced cracking during fabrication and operation, which compromises structural integrity and separation reliability. Here we report a secondary growth strategy to heal cracks in membranes assembled from two-dimensional Zr-MOF nanosheets while enhancing structural robustness and separation performance. Capillary forces draw precursor solutions containing metal ions and organic linkers into preexisting stress-induced cracks. The subsequent secondary growth infills these defects, healing the cracked regions and restoring a dense, continuous selective layer. This post-fabrication repair strengthens intercrystalline connectivity without introducing thick sealing layers that impede water transport, thereby recovering both high solute rejection and permeability. Crack healing and membrane densification are achieved at an optimal nanosheet loading, whereas excessive loading leads to stress accumulation and renewed structural instability. The optimized membranes exhibit a continuous crack-free selective layer with increased thickness, enhanced hydrophilicity, and a higher negative surface charge. Compared with the primary Zr-MOF membrane (P-Zr-MOF), the repaired membrane (SG-Zr-MOF) achieves a tannic acid rejection of 96.8% with a water flux of 481.9 L m −2 h −1 bar −1 , together with improved mechanical flexibility and antifouling performance. This strategy couples defect repair with performance enhancement and provides a practical route for developing stable and efficient MOF membranes for sustainable water treatment. Download: Download high-res image (190KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2026
·
IF 6.9
Jun Zhao,Chao Jiang,Xiang Ji,Peipei Wang,Leihua Xu,Peizhong Feng,Xuanru Ren
To enhance the anti-oxidation performance of ultra-high temperature ceramic (UHTC) coatings applied on carbon-based materials under extremely high-temperature conditions, HfB 2 -HfSi 2 powders modified with a Zr-based borosilicate glass (BSG) were employed to fabricate HfB 2 -HfSi 2 -BSG(ZrO 2 ) composite coatings via self-propagating high-temperature synthesis (SHS) and spark plasma sintering (SPS). A systematic investigation was conducted into the microstructural changes and the oxygen-barrier strengthening mechanism of the Zr-based borosilicate-modified HfB 2 -HfSi 2 coating when exposed to 1700 °C. The findings indicated that the introduction of ZrO 2 facilitated the in-situ development of an oxidized Zr-Hf-Si-O multiphase glassy layer on the surface, which significantly reinforced the blocking of inward oxygen diffusion and the retention of volatile reaction products. The optimal overall oxidation resistance of the coating was achieved when the BSG:ZrO 2 proportion was set to 1:1. The average oxidation rate and the average oxygen permeability were 0.41 × 10 −7 g cm −2 s −1 and 0.09%, which were 61.68% and 82.0% lower than those of the coating without ZrO 2 addition. However, doping with an excess of ZrO 2 caused the glass layer to exhibit an overly high viscosity and induced dendritic precipitation, which consequently compromised self-healing sealing capability. This study reveals the oxygen-barrier mechanism of HfB 2 -HfSi 2 -BSG(ZrO 2 ) coatings, offering a new strategy for long-life oxidation-resistant coatings in extreme environments.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Chao Tang,Ziyu Li,Jun Zhao,Hang Yang,Weizheng Jia,Wencan Cheng,Xuan Li,Xin Xia,Wangjing Ma
Zr-Zn/ZnO catalyst was synthesized for microwave-assisted PET glycolysis. • Atomic-level Zr incorporation regulates Zn coordination environments and Lewis acidity. • Near-quantitative recycling of PET waste was achieved. • Synergistic Zn Zr sites facilitate PET glycolysis toward high-purity BHET (99.8%). • This strategy can potentially be applied to diverse real-world PET waste. Closed-loop recycling of polyethylene terephthalate (PET) into bis(2-hydroxyethyl) terephthalate (BHET) monomers represents a promising approach to plastic waste valorization, yet its application is constrained by low monomer purity and limited feedstock compatibility. Herein, a high-performance Zn-Zr/ZnO catalyst was synthesized via a simple impregnation method. Under microwave-assisted glycolysis conditions, this catalyst enables the conversion of PET to BHET with a yield of 94.2% and purity of 99.8%. The system demonstrates stable recyclability over 10+ reaction cycles and reduces energy consumption by 60% in the depolymerization process compared with conventional electric furnace-based thermal catalysis. The recovered BHET can be repolymerized into a PET-like polymer, establishing a closed-loop material cycle. Notably, the method achieves efficient monomer conversion across a range of real-world PET plastics and fiber products, with successful implementation in a 150-g scale-up experiment. Mechanistic studies indicate that Zr and Zn species synergistically promote PET depolymerization to BHET. This work presents an efficient and stable route for high-value closed-loop recycling of waste PET, which could support the advancement of the plastic circular economy. Download: Download high-res image (317KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Muhammad Nasir Rafiq,Zhonghua Dai,Yuanyuan Zheng,Xujun Li,Chenxi Liu,Xin Zhao,Yu Cong,Shuitao Gu
Lead-based ceramics with high energy storage and electrical capabilities are developed as high-performance materials for pulsed power systems. The (Pb, Cd, La)(Zr, Sn, Ti)O 3 (PCLZST) anti-ferroelectric ceramics attract significant attention as energy storage materials. In this work, ceramics (Pb 0.97- x Cd x La 0.02 )(Zr 0.93 Sn 0.05 Ti 0.02 )O 3 ( x = 0.01, 0.015, 0.02 and 0.025) have been prepared using a solid-state method, and their dielectric and energy storage characteristics are investigated. The results indicate that Cd 2+ doping at the A-site effectively suppresses grain growth, leading to a minimum average grain size of 1.24 μm in PCLZST ceramics. The PCLZST ceramics exhibit orthorhombic phases and high relaxation factors, confirming their excellent antiferroelectric nature. Notably, the energy storage density of PCLZST ceramics is 10.09 J/cm 3 , the recoverable energy storage density is 7.79 J/cm 3 , and the discharge time is 0.102 μs reflecting optimal comprehensive performance. These findings emphasize the efficacy of Cd-doped PLZST ceramics in advanced energy storage and pulse power systems, underscoring their potential to drive future technological advancements.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Zimo Wang,Yaohan Chen,Li Wang,Jifu Zheng,Yong Fan,Suobo Zhang
The development of new adsorbent materials to improve adsorption capacity and selectivity constitutes a significant research direction for removing toxic ions from water. In this study, a series of Zr-based metal–organic framework hierarchical porous nanofibre membranes (MOFs@PIM-W) was designed and successfully synthesised, and their adsorption properties and mechanism for fluoride ions in water were investigated. The formation of Zr–F bonds in Zr-based MOFs is a primary reason for the rapid, effective, and stable removal of fluoride ions from water. Moreover, in contrast to common powder adsorbents and the conventional static adsorption process, the obtained hierarchical porous nanofibre membranes improve the removal rate of fluoride ions, which may be attributed to the formation of hierarchical porous structures. Specifically, by modifying the types of MOFs, the obtained nanofibre membranes can effectively remove Hg(II) ions from water under a wide range of pH environments (pH = 2–10) with a removal rate of up to 99 %. This indicates that the hierarchical porous design of nanofibre membranes incorporated with their specific adsorption provides a viable option for rapidly and efficiently removing toxic ions from water.
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2023
·Vol. 16
·期 2
·684
·
IF 3.4
Yunxin Yang,Cong Wang,Hua Zhang,Jiancai Qian,Song Yang,Huiyun Liao,Xuehui Sun,Yipeng Wang,Peijian Sun,Yunzhen Jia,Junwei Guo,Huaiyuan Zhu,Cong Nie
Removal of 1,3-butadiene from cigarette smoke plays an important role in human health and environmental protection. Herein, a series of UiO-66 X% containing different ratios of the -NH2group was synthesized via the solvothermal method by using terephthalic acid (H2BDC) and 2-aminoterephthalic acid (NH2-BDC) as ligands. Using GO as support, a series of UiO-66-NH2/GO Y% were prepared by controlling the ratio of UiO-66-NH2and GO. The effects of -NH2and GO contents on the structure and composition of MOFs were investigated. Finally, the different -NH2contents of UiO-66 X% and the different GO contents of UiO-66-NH2/GO Y% were applied in 1,3-butadiene removal from cigarette smoke. The results showed that UiO-66 X% with the higher contents of -NH2showed a higher rate of 1,3-butadiene removal, and UiO-66-NH2/GO Y% with the GO contents of 5% showed the highest removal rate of about 33.85%, which was 25.54% higher than that of activated carbon. In addition, the saturation capacity of the adsorbent materials for 1,3-butadiene was as high as 210.01–239.54 mg/g, showing great potential in reducing harmful components in cigarette smoke and environmental protection.Keywords:UiO-66;UiO-66-NH2/GO;1,3-butadiene removal;cigarette smoke
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2022
·
IF 11.072
Jie Chen,Jianzhong Ma,Qianqian Fan,Wenbo Zhang
Chrome-free tanning agent is of great significance because it can eliminate the notable environmental pollution of chrome tanning. Metal-organic frameworks (MOFs) are the products of the desired combination of metal ions and organic ligands, which make them the born self-masking tanning agent. Herein, a series of Zr-MOFs were prepared by a solvothermal method, and then applied in leather tanning process. Among the Zr-MOFs family, UiO-66 tanned leather exhibited the highest shrinkage temperature ( T s ) of 75.3 °C. Meanwhile, the smaller particle size and self-masking structure of Zr-MOFs allowed for the uniform distribution in collagen fibers matrix, thus giving improved physical-mechanical and organoleptic properties . It was noted that 80% metal usage reduced could be achieved with Zr-MOF as tanning agent comparing with conventional zirconium sulfate. It was found that Zr 4+ of Zr-MOFs could mainly coordinate with -COOH and -NH 2 groups in collagen fibers to form a stable cross-linked structure. In addition, the BOD 5 /COD value (>0.3) of Zr-MOF tanning waste liquor indicated good biodegradability , further confirming the eco-friendly metal-less tanning process. All results indicate that the proposed Zr-MOFs will promote the eco-friendly metal-less tanning process and open a new chapter for the chrome-free tannage.
✓ 已验证
产品关联
DOI
高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 4.446
Jiacong Wu,Yi Wang,Juan Han,Lei Wang,Chunmei Li,Yanli Mao,Yun Wang
In this work, a mesoporous Zr-based MOF (MP-UIO-66) was first synthesized by biomineralization method using dextran as template and the resultant particles were applied in the immobilization of cellulase . Compared with conventional UIO-66, MP-UIO-66 has more mesoporous channels (4.6 nm) that allow cellulase (3.4 * 12.4 nm) to be entrapped into the channels, improving loading capacity and stability of immobilized enzyme . Specifically, the results showed that MP-UIO-66 had an excellent loading capacity (265 mg g −1 ) for cellulase, and the residual enzyme activity of PVP-cellulase@MP-UIO-66 (PCMU) was still about 83% after 6 cycles. Moreover, the suitable pore structure exposes the active center of cellulase to the external environment, which facilitates the mass transfer of the substrate. Based on Michaelis-Menten constant analysis, the substrate affinity (13.355 mg mL −1 ) and catalytic efficiency (1.311 mL mg −1 min −1 ) of PCMU were better than those of free cellulase (14.525 mg mL −1 , 0.732 mL mg −1 min −1 ).
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Lingchao Kong,Jun Zhang,Yi Wang,Qinlin Yan,Jiayu Xu,Xi Quan,Charles B. Andrews,Zuotai Zhang,Chunmiao Zheng
Hazardous oxyanions in water bodies are potentially toxic to aquatic life, and the coexistence of multiple anions aggravates the toxicity. Herein, bowknot-like Zr/La bimetallic organic frameworks (Zr/La-BTC) were developed with superior hazardous oxyanion adsorption capacities, i.e., approximately 102 mg/g for arsenate and 159 mg/g for phosphate, respectively. The molar ratio of Zr to La in Zr/La-BTC plays a significant role in the structure and the adsorption efficiencies. Notably, the experiment-derived adsorption capacities of various Zr/La-BTC samples were consistent with their adsorption energies calculated by density-function theory (DFT). Further mechanism analysis revealed that coordination of Zr/La atoms with the target anion groups occurred during adsorption. The positive shift of binding energies in La 3d and Zr 3d XPS spectra and Bader charge analysis unveiled that back-donation interactions dominated the adsorption process . The reliable adsorption selectivity and reusability of 0.1Zr/La-BTC were verified with anion competition experiments and four adsorption-desorption cycles. Overall, this study provides significant insight into the design of high-performance bimetallic organic frameworks for the enhanced removal of hazardous oxyanions from water.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）