JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Shaodong Bai,Jianjiang Mao,Fengshou Yu,Fei Cheng
Solid-state electrolytes (SSEs) can replace the diaphragm and electrolyte in the traditional battery to solve safety perils such as electrolyte leakage and combustion, while their practical application is greatly hindered by their low ionic conductivity and poor ability to inhibit lithium dendrites. Herein, a laponite (LAP)/zeolitic imidazolate framework-8 (ZIF-8) hybrid material modified polyvinylidene fluoride (PVDF)-based composite polymer electrolytes (CPE) is reported. The in-situ modification of ZIF-8 induced by electrostatic interactions between LAP layers not only improves the dispersion of LAP, but also acts as an external bridge through hydrogen bonding with PVDF to construct a stable conductive network. The extended and compatible polymer-nanofiller hybrid interface enables continuous ion migration paths and effectively reduce the crystallinity of PVDF. Moreover, the Lewis acid site and high porosity of ZIF-8 can not only promote the dissociation of lithium bis (trifluoromethanesulphonyl) imide (LiTFSI), but also limit the movement of TFSI − , further improving the ionic conductivity. Benefiting from the synergistic enhancement effect of hybrid interface, the obtained CPE demonstrated an excellent ionic conductivity of 6.77 × 10 −4 S cm −1 at room temperature and a satisfactory ion transference number of 0.60 together with superior electrochemical window of 5.3 V and good mechanical strength. The assembled Li metal battery shows a high capacity retention rate is 95 % after 150 cycles at 1C, indicating a significant inhibitory effect on lithium dendrites.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Changzhou Chen,Wei Chen,Mengqing Zhou,Yongzhi Xiong,Xialin Ji,Minghao Zhou,Liangliang Zhang,Xiaoping Rao,Jianchun Jiang
Large amount of lignin was produced annually as a byproduct in papermaking and pulping processes, the challenges in disposal methods had posed serious obstacles for advanced carbon materials and value-added chemicals. This study involved the preparation of kraft lignin (KL) loaded metal–organic framework (ZIF-67) material derived Co nanoparticles carbon using various methods to produce kraft lignin biochar-based carbon materials (Co@NPC-KLB). The novel and advanced carbon materials was utilized for lignin derived bio-oil hydrodeoxygenation to generate high value fuels and chemicals. It could achieve nearly 100 % vanillin (VAN) conversion and 88.49 % 2-methoxy-4-methylphenol (MMP) without the extra hydrogen at 240 °C in ethanol. The results demonstrated that highly active and stable Co nanoparticles, large specific surface area, smaller nano Co nanoparticles, strong metal-support interaction and rich Lewis acid sites on the surface of biochar support exhibited a positive promoting effect on VAN hydrodeoxygenation to generate MMP. Furthermore, density functional theory (DFT) also confirmed that synergistic effect of Co nanoparticles and kraft lignin biochar promoted a high adsorption energy of VAN on the surface of kraft lignin biochar, enhanced the catalytic ability of the hydrodeoxygenation process. This study provided a novel approach for utilizing kraft lignin in preparation functional catalysts, opening up new opportunities for designing efficient biochar-based materials for advanced carbon materials and high-value chemicals.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Hongfei Jia,Yangchen Wang,Lizi Yang,Ran Fang
Lithium metal, a pivotal element in modern electric vehicles and electronics, necessitates secure and sustainable supply chains. Extracting lithium from brines presents significant challenges, particularly when dealing with high magnesium-to-lithium ratios, due to the nearly identical ionic radii of lithium and magnesium ions. Herein, we propose an innovative strategy for the selective separation of Li + /Mg 2+ by integrating ZIF-8-NH 2 into polyamide membranes through the interfacial polymerization (IP) of polyethyleneimine (PEI) and trimesoyl chloride (TMC). The synthesized PEI@ZIF-8-NH 2 + TMC membranes exhibit an impressive permeation rate for Li + of 0.863 mol m -2 h -1 , alongside a Li + /Mg 2+ selectivity ratio of 33.06. The unique pore structure of ZIF-8-NH 2 and surface chemistry facilitate efficient Li + /Mg 2+ separation, driven by synergistic interactions such as elevated positive surface charges, subnanometer channels, and strong π-π stacking with polyamide layers. These developments are anticipated to augment both the selectivity and durability of MOF-based membranes, providing new directions for research and practical implementations in ion separation technology.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Shuqian Meng,Xiaoqian Ju,Jingwen Wang,Baolu Cui,Yuxi Liu,Haosheng Ma,Dechao Wang,Zhiyuan Yang
Carbon capture, utilization, and storage (CCUS) is a crucial technology for achieving carbon reduction targets. The key to CCUS technology lies in developing and designing efficient and low-cost CO 2 capture materials. Metal-organic frameworks (MOFs) have emerged as promising CO 2 adsorbents in the field of carbon capture. However, high agglomeration of nanoparticles and high cost have severely hindered the application of MOF-based solid adsorbents. This study employs an in-situ growth method to prepare a novel “corncob-shaped” PHNT@ZIF-8 composite material. During the reaction process, surface modification of halloysite nanotubes (HNT) enhances the interaction between HNT and ZIF-8. The resulting PHNT@ZIF-8 exhibits an enhanced CO 2 adsorption capacity of 1.48 mmol/g. Notably, the functionalized PHNT@ZIF-8 as CO 2 adsorbents demonstrated significant adsorption properties: a high specific surface area of 409.74 m 2 /g, good selectivity in simulated flue gas composition of 15%/85% (CO 2 /N 2 ) (39.1), excellent thermal stability, and superior regenerability. Moreover, PHNT@ZIF-8 adsorbs CO 2 primarily through van der Waals forces, which involve low energy and are easily reversible. After eight adsorption–desorption cycles, CO 2 capacity retention rate remains as high as 93% (1.37 mmol/g). This work enriches the repertoire of solid CO 2 composite adsorbents, providing a novel pathway for enhancing CO 2 adsorption performance.
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Journal of Environmental Chemical Engineering
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2024
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IF 7.4
Xinyu Li,Shijie Li,Yunpeng Ren,Yifei Yang,Yisong Yu,Jin Zhang,Jianguo Zhao
Metal-organic frameworks (MOFs) derived porous carbons have been demonstrated to have dramatic performance in CO 2 adsorption. Herein, ZIF-8 was initially synthesized in the pores of Chinese white poplar to prepare composites, and then the composites were carbonized into ZIF-8@Poplar porous carbon for CO 2 uptake. The structure and physical-chemical properties of the prepared material were investigated. The results showed that when the molar ratio of metal clusters to organic ligands was 1:4, the synthesized ZIF-8 had small particle size around 150–200 nm and was resistant to 973 K, this confirmed the feasibility for composite of ZIF-8@wood. ZIF-8 was successfully synthesized in situ inside of wood, it suspected combining with wood through hydrogen bonding and electrostatic interactions, and its content in wood was 12.76 %. The prepared ZIF-8@Poplar porous carbon was an amorphous carbon with BET surface area of 233.772 m 2 /g, pore volume of 0.177 cm 3 /g and the average pore size of 3.024 nm. It had CO 2 capacity of 1.33 mmol/g at 298 K at 1 bar with lower N content (based on XPS patterns), the CO 2 adsorption was conducted from its abundant micropores, which is corroborated by the heat of CO 2 adsorption (34.53 kJ/mol) calculated based on Clausius-Clapeyron equation. Based on Ideal Adsorbed Solution Theory (IAST), it has a good adsorption selectivity of CO 2 over N 2 on a gas mixture containing 10 % CO 2 and 90 % N 2 . In summary, in situ synthesis and co-carbonization provide a strategy for the synthesis of MOFs@wood-derived hard porous carbon for superior CO 2 uptake in industrial applications.
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Heliyon
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2024
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IF 3.4
Haoruo Jia,Ziyuan Zheng,Jining Qu,Hongtao Yu,Zhoujun Zhu,Qingda Lu,Fei Su,Yating Yang,Tongtong Feng,Qiang Jie
Although Zeolitic Imidazolate Framework-8 (ZIF-8) shows significant promise in chemodynamic therapy of bacterial infections due to its large specific surface area and enzyme-like activity, it still faces a considerable gap compared to natural enzymes. The dependency on low pH and high concentrations of hydrogen peroxide ((H 2 O 2 ) is a major factor limiting the clinical progress of nanozymes. Single-atom nanozymes (SA-zyme), which exhibit superior catalytic performance, are expected to overcome this limitation. In this study, we used ZIF-8 as a template to prepare structurally regular molybdenum-based single-atom nanozymes (Mo-zyme) by coordinating molybdenum atoms with nitrogen atoms within the zeolitic imidazolate framework and evaporating the zinc element at high temperatures. The cascade catalytic performance of the nanodrugs was enhanced by loading glucose oxidase (GOx) and encapsulating it with a hyaluronic acid (HA) layer to form a composite (Mo/GOx@HA). Upon contact with hyaluronidase from bacteria in infected tissues, the cascade reaction is triggered, resulting in the degradation of the HA shell, and releasing the encapsulated GOx. Once exposed, GOx catalyzes the oxidation of glucose into gluconic acid, resulting in a localized decrease in pH and continuous production of H 2 O 2 . The combination of lowered pH and increased H 2 O 2 concentration significantly amplifies the catalytic activity of the Mo-zyme. This enhanced activity facilitates the in situ generation of hydroxyl radicals (•OH) on the bacterial surface, leading to effective and efficient bacterial eradication. Wound infection treatment has demonstrated that the as-prepared Mo/GOx@HA exhibits excellent antibacterial and anti-inflammatory activity. This work provided a promising enzymatic cascade reaction nanoplatform for the treatment of bacteria infected wounds.
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INDUSTRIAL CROPS AND PRODUCTS
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2024
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IF 5.6
Wenfan Yu,Zhenxuan Liang,Shaoyu Luo,Qian Yan,Yi Sun,Yisheng Zhu,Shifeng Zhang
Metal-organic frameworks (MOFs) are highly advantageous due to their tunable pore size, exceptional thermal and chemical stability, and high specific surface area, making them ideal for applications in formaldehyde adsorption. However, the practical use of powdered MOFs is significantly hindered by their recycling challenges. In this research, wood-based composite aerogels (WAZN-X) were successfully prepared through loading Zeolitic Imidazolate Framework-8-NH 2 (ZIF-8-NH 2 ) inside wood aerogels. Ascribing to the elimination of lignin and hemicellulose, the enlarged pore structures of wood aerogels and the potential interactions (e.g., hydrogen bonding and electrostatic attractions) between components promoted the uniformly depositing of ZIF-8-NH 2 nanocrystals. The WAZN-X aerogels displayed excellent mechanical strength (e.g., the longitudinal Young’s modulus of 68.57 MPa) and promising formaldehyde adsorption performance (e.g., a stable formaldehyde removal rate of 98.11 %), and kept commendable reusability (95.98 % after 5 cycles). This research provides a new insight for developing high-value functional composite adsorbents for efficient formaldehyde purification.
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CARBON
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2025
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IF 11.6
Jiaxi Shu,Yechen si,Xiaolong Ma,Wenli Lei,Yuanmeng Zhao,Changsheng Shan
Multi-component alloys have been considered as alternative anode materials for lithium-ion batteries (LIBs) due to their much higher capacity than graphite. However, the alloys still suffer from large volume expansion, leading to fast capacity decay. Here, high entropy metal sulfide/carbon nanocomposites ((FeCoNiCuZn)S x /C) were fabricated by the calcination of FeCoNiCuZn high-entropy alloy/ZIF-8 nanocomposites. As an anode for LIBs, the (FeCoNiCuZn)S x /C exhibited superior reversible capacity of 809.5 mAh g -1 with high coulombic efficiency of 99.6% at high current density of 500 mA g -1 after 200 cycles and high rate capacity (up to 1150.2 mAh g -1 and 604.4 mAh g -1 at 0.2 A g -1 and 3 A g -1 , respectively), showing much better performance than (FeCoNiCuZn)S x without ZIF-8 derived carbon. The experimental results show that the excellent electrochemical performance of (FeCoNiCuZn)S x /C is mainly attributed to the presence of ZIF-8 derived conductive carbon skeleton, which enhanced greatly structural stability and electron transfer ability of (FeCoNiCuZn)S x .
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Shangheng Jiang,Shiqiang Liang,Chunxiao Hu,Yuanfang Fan,Zhongmin Su,Zhi Geng,Chi Wang
Membrane Distillation (MD) technology stands out for its cost-effectiveness and sustainability in diverse applications, such as high-salinity wastewater treatment and seawater desalination. However, conventional MD membranes frequently encounter challenges associated with inadequate permeate flux and insufficient anti-wetting performance. In the present study, we fabricated a series of ZIF-CoZn@PVDF-HFP composite nanofiber membranes with a core–shell structure via coaxial electrospinning. Here, PVDF-HFP functions as the core, while a blend of bimetallic Zeolitic imidazolate framework ZIF-CoZn nanoparticles and PVDF-HFP constitutes the shell. Through the utilization of the coaxial technology, functional nanoparticles achieve uniform and stably dispersed on the nanofiber surface, leading to the creation of a secondary rough structure in addition to the inherent roughness of single-nozzle electrospinning. This results in a surface with a 3D-hierarchical structure. The significantly amplifies the evaporation area on the surface of the composite nanofiber membrane, thereby bolstering the permeate flux in the MD process. Additionally, the incorporation of bimetallic ZIF-CoZn nanoparticles, recognized for their superior hydrophobicity and low thermal conductivity, improves the anti-wetting and heat-insulating properties of the composite nanofiber membrane, further advancing permeate flux performance. Using a 35 g L −1 NaCl as the feed solution, the optimal 1 % ZIF-CoZn@PVDF-HFP composite nanofiber membrane demonstrated a permeate flux of 21.8 L m −2 h −1 , coupled with a salt rejection rate exceeding 99.9 %. Even during long-term MD testing, it maintained excellent insulation and anti-wetting capabilities. Our research offers a convenient and effective approach for fabricating anti-wetting composite nanofiber membranes.
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ACS Applied Nano Materials
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2024
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IF 5.3
Yao Liu,Luotian Lv,Han Feng,Hao Liu,Yongqing Wang
Developing highly efficient photocatalysts for CO2 reduction is critical for addressing global warming and energy supply issues. However, both single-component metal-organic frameworks (MOFs) and conventional semiconductor catalysts face significant challenges, such as severe charge recombination, poor CO2 adsorption capacity, and low utilization of solar energy in the photocatalytic reduction of CO2. To address these limitations, the formation of Z-scheme heterojunction photocatalyst has been proved to be an effective way to suppress the recombination of photoinduced carriers. In this work, an indirect Z-scheme heterojunction photocatalytic system, namely, Cu-doped-ZIF-67Co/Bi4O5Br2, is prepared by means of ion-doping and in situ growth strategy. Electrochemical characterization demonstrated the formation of p-type ZIF-67CoCu nanocubes and n-type Bi4O5Br2 nanosheets. The indirect Z-scheme band structure of the heterojunction was well-defined by X-ray photoelectron spectroscopy (XPS), Mott–Schottky test, and ultraviolet photoelectron spectroscopy (UV). The optimal Cu-doping ratio (molar ratio) and composite ratio (mass ratio): 1% ZIF-67CoCu(1:1)/Bi4O5Br2 exhibits excellent photocatalytic CO2 reduction performance, a remarkable rate of 6469.88 μmol·g–1·h–1, and a high CO selectivity of 97%. Compared to individual ZIF-67CoCu and Bi4O5Br2, the performance of reduction of CO2 to CO is improved by 4.19 and 8.64 times, respectively. Density functional theory calculations and in situ diffuse reflectance infrared Fourier transform spectroscopy results had shown that the existence of Cu in ZIF-67 facilitates the desorption of CO and the reduction process features the key CO* intermediate during the photoreduction of CO2 to CO on 1% ZIF-67CoCu/Bi4O5Br2. This study provides an exciting example for the design and understanding of the ion-doped MOFs and the semiconductor construction of indirect Z-scheme photocatalytic system for promoting photocatalytic capacity.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Shilin Chen,Zhikang Li,Dongjie Yang,Xueqing Qiu,Dafeng Zheng,Weifeng Liu
The alarming overuse of antibiotics poses a serious threat to the environmental security. Herein, a hybrid aerogel adsorbent, sodium lignosulfonate functionalized polyethyleneimine/carboxymethyl chitosan@ZIF-8 (CCSL@ZIF-8), was fabricated by introducing sodium lignosulfonate into polyethyleneimine/carboxymethyl chitosan (CSSL) and then in situ uniformly anchoring of ZIF-8 on CSSL aerogel. The incorporation of sodium lignosulfonate not only enhanced the mechanical properties of CCSL , but also provided a large number of chelating sites for Zn 2+ and promoted the formation of ZIF-8. The sorption behavior and mechanism were studied by batch adsorption experiments and characterization analysis. The experimental results demonstrated that the maximum adsorption capacity of CCSL-1.0@ZIF-8 was 231.36 mg/g with a tetracycline (TC) concentration of 200 mg/L at 303 K, which was 7 times higher than that of CCSL-1.0 (30.73 mg/g). The absorption process followed the pseudo-second-order kinetic model and Freundlich isothermal model, and the process of adsorbing TC was dominated by multilayer chemisorption. The adsorption mechanism included pore filling, coordination bonds, hydrogen bonding, electrostatic interactions and π-π interactions. Moreover, the removal efficiency of TC by CCSL-1.0@ZIF-8 was maintained above 78 % after 6 cycles. Overall, this work presents a potential bio-based adsorbent for the effective removal of tetracycline from wastewater and provides a novel, facile, and green chemical technique for high-value utilization of lignin. Furthermore, the prepared biomass-based hybrid adsorbent has outstanding reusability and water stability, which has broad practical application prospects in antibiotic wastewater treatment.
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高影响因子
Materials Today Chemistry
·
2024
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IF 6.7
Zhuluni Fang,Yihan Liu,Jinteng Qi,Miao Yu,Yuhang Wang,Yunfeng Qiu,Zhuo Ma,Shaoqin Liu
Solar-driven interfacial water evaporation holds great promise for water purification and desalination, but challenges such as insufficient light absorption, suboptimal energy conversion, and microbial contamination hinder its practical applications. This study presents a novel Au@ZIF-8/Ti 3 C 2 T x alginate hydrogel, integrating nanocomposites into a three-dimensional hydrogel network to enhance both water transport and light-to-heat conversion. The incorporation of Au nanoparticles significantly improves light absorption, while the Schottky junction between ZIF-8 and Ti 3 C 2 T x promotes photocatalytic generation of reactive oxygen species (ROS), including superoxide radicals (O 2 − ) and singlet oxygen ( 1 O 2 ). This photocatalytic activity, combined with the photothermal effects of Ti 3 C 2 T x , leads to effective bacterial sterilization, achieving 99.54 % and 97.22 % antibacterial efficiency against E. coli and S. aureus , respectively. The hydrogel exhibits a high evaporation rate of 1.589 kg m −2 h −1 and demonstrates a 100 % steam sterilization rate against both bacterial strains under one sun illumination. These findings highlight the potential of the Au@ZIF-8/Ti 3 C 2 T x alginate hydrogel as a promising, efficient, and cost-effective sterilization strategy for various applications, including water purification, desalination, and disinfection in off-grid areas and specialized settings.
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