JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2025
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IF 8.4
Yiming Liu,Weixuan Pan,Hui Zhang,Ningxin Geng,Liangxu Jiang,Jiaan Bao,Huiwen Wu,Qi Liu
In this study, a composite aerogel was synthesized through the in situ integration of ZIF-8 within a sodium alginate (SA) framework, followed by cross-linking and freeze-drying. SA@ZIF-8 demonstrated enhanced adsorption capacity and reusability. The introduction of ZIF-8 improved the aerogel’s surface properties and generated abundant porous adsorption sites. At 298 K, the composite exhibited a maximum theoretical adsorption capacity of 200.4 mg g −1 for tetracycline (TC). The adsorption process of SA@ZIF-8 for tetracycline followed the pseudo-second-order kinetic model and the Langmuir isotherm model. The adsorption mechanisms include synergistic effects, hydrogen bonding, coordination bonding, electrostatic attractions, and π–π interactions. In addition, following ten adsorption-desorption cycles, the material consistently demonstrated a removal efficiency surpassing 65.7 %. On the whole, this study demonstrates an efficient biomass adsorbent for the removal of tetracycline from drain water. The prepared composite aerogel exhibits excellent reusability for efficient tetracycline removal from wastewater, demonstrating strong potential for practical water treatment applications.
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DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
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2024
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IF 7.7
Lingrui Zhang,Li Zhao,Yating Tan,Xiaobo Gong,Meng Zhu,Yong Liu,Yucheng Liu
Oil/water separation has become a global concern due to the increasing discharge of multi-component harmful oily wastewater. Super wetting membranes have been shown to be an effective material for oil/water separation. Ultra-high flux stainless-steel meshes (SSM) with superhydrophilicity and underwater superoleophobicity were fabricated by tannic acid (TA) modified ZIF-8 nanoparticles (TZIF-8) and two-dimensional MXene materials for oil/water separation. The TZIF-8 increased the interlayer space of MXene, enhancing the flux permeation (69,093 L m −2 h −1 ) and rejection of the composite membrane (TZIF-8@MXene/SSM). The TZIF-8@MXene/SSM membrane showed an underwater oil contact angle of 154.2°. The membrane maintained underwater superoleophobic after stability and durability tests, including various pH solutions, organic solvents, reusability, etc. In addition, the oil/water separation efficiency of TZIF-8@MXene/SSM membranes was higher than 99% after treatment in harsh conditions and recycling. The outstanding anti-fouling, stability, durability, and recyclability properties of TZIF-8@MXene/SSM membrane highlight the remarkable potential of membranes for complex oil/water separation process.
研究领域:
材料科学
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环境科学
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DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Run Cai,Jiahao Jiang,Pengfei Diao,Zihan Wei,Change Yao,Bosheng Zhou,Huijuan Zhang,Wenwen Liu,Zhong Ma
It is crucial to develop low-cost and efficient electrocatalysts to facilitate oxygen reduction reaction (ORR) and transition metals incorporated into nitrogen-doped carbon matrices (M-NC) catalysts are regarded as a potential candidate to substitute platinum-based electrocatalyst. However, there is still a great challenge in real activity and stability, compared to Pt-based electrocatalysts, for large-scale applications. An effective way to improve the ORR performance for this category of single-atom catalysts is to increase the density of active sites. In this work, therefore, the highly dispersed ZIF-67-derived Co-NC confined in carbon pores electrocatalysts are synthesized by impregnating ZIF-67 precursors into the nanopores of Ketjenblack EC-600JD (KB) resulting in the in-situ growing of small crystals in the pores followed by the high temperature pyrolysis. The as-prepared CoNC-700@C electrocatalyst exhibits excellent ORR performance in alkaline media with an onset potential of 967 mV and a half-wave potential of 892 mV (vs. RHE), which is much higher than that of the commercial Pt/C catalyst. It is inferred that the excellent ORR activity of CoNC-700@C mainly results from the increased density and also enhanced dispersion of active sites due to the confinement effect offered by the pores of KB. This study also provides a simple and effective method to increase the density of active sites for single-atom category materials.
研究领域:
材料科学
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电化学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Ying Liu,Guozhu Tong,Jing Li,Yuzhu Jin,Maoli Yin,Xuehong Ren
As living standards continue to rise, the demand for advanced cotton textiles that fulfill enhanced functional requirements has grown significantly. Therefore, the development of multifunctional antibacterial/hydrophobic cotton fabrics holds considerable practical value. In this study, a zeolitic imidazolate framework (ZIF-8) based hybrid material, ZIF/SiO 2 -LDS (Long-chain derivative of silane), was synthesized via a co-precipitation method using silica, zinc nitrate hexahydrate, 3-aminopropyltriethoxysilane (KH-550), 2-methylimidazole and hexadecyltrimethylsilane (HDTMS). The resulting hybrid particles were then applied to cotton fabric through a simple padding process, achieving a loading amount of 2.348 %. This was followed by chlorination treatment with sodium hypochlorite to introduce antibacterial functionality. Hydrophobicity was assessed through contact angle measurements, achieving a maximum contact angle exceeding 145°. Antibacterial efficacy testing revealed complete inactivation of bacteria strains, achieving 100 % effectiveness. Study on the adhesion behavior of Staphylococcus aureus and Escherichia coli showed that HZSi/cot-Cl exhibits outstanding antibacterial adhesion resistance, effectively inhibiting bacterial attachment at concentrations up to 10 6 CFU/mL within one hour. The combined antibacterial and anti-adhesive properties significantly mitigate biofilm formation on the HZSi/cot-Cl surface. Notably, the fabric retained its anti-biofilm functionality even after 50 wash cycles. This research provides valuable insights into the development of advanced antibacterial and anti-adhesive treatments for cotton fabrics.
研究领域:
材料科学
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纳米技术
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纺织工程
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生物医学工程
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DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Lei Zhou,Sai Ma,Meizhen Gao,Boyao Xie,Qi Shi
1,3-propanediol (1,3-PDO) is a high-value chemical that can be produced via glycerol hydrogenolysis or biological fermentation. The main products of glycerol hydrogenolysis include 1,3-PDO and 1,2-propanediol (1,2-PDO). The properties of propanediol isomers are extremely similar, which are difficult to effectively separate them. Based on the differences in the shape of ellipsoidal 1,3-PDO and spherical 1,2-PDO, ZIF-300 with a 6-member ring (6-MR) trap between cha and d6r cages that can match spherical 1,2-PDO have been selected for the separation of propanediol isomers. ZIF-300 series materials (named ZIF-300-S1, ZIF-300-S2 and ZIF-300-S3) with different 6-MR trap orientations have been constructed by variable the ratio between the small-sized 2-methylimidazole (mIm) and large-sized 5-bromobenzimidazole (bbIm) links. Theoretical and experimental results show that ZIF-300-S3 (Zn(mIm) 1.04 (bbIm) 0.96 ) preferentially adsorbed 1,2-PDO over 1,3-PDO because the 6-MR trap with uniform large bbIm/small mIm links distribution faces essentially the small d6r cage, which can better match spherical 1,2-PDO. In contrast, ZIF-300-S1 (Zn(mIm) 0.82 (bbIm) 1.18 ) show low uptake of 1,2-PDO and 1,3-PDO because the 6-MR trap with main large bbIm links distribution faces essentially the larger cha cage, which show weak confinement of 1,2-PDO and 1,3-PDO. The dynamic column adsorption (1,2-PDO/1,3-PDO: 50/50 g L −1 ) results exhibited that the adsorption capacity of ZIF-300-S3 for 1,2-PDO can be as high as 64.7 mg g −1 and selectivity for 1,2-PDO/1,3-PDO was 2.0. This work provides valuable insights into the construction of ZIFs materials with tunable 6-MR trap for effective separation of isomers.
研究领域:
化学工程
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材料科学
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DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2025
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IF 3.5
Le Chen,Wen-Qing Zhang,Lin Nie,Jian-Jun Yin,Qun Chen,Pengxiang Qiu,Ming-Yang He,Zhi-Hui Zhang
Metal-organic aerogels derived from ZIF-8 frameworks were developed for xylene isomer separation, demonstrating unique structural and adsorptive properties. The incorporation of ZIF-8 transformed non-porous agar (AG) aerogel into a hierarchically porous composite, albeit with a reduced surface area compared to pure MOFs. Vapor-phase adsorption and breakthrough experiments revealed exceptional p -xylene selectivity ( p X/ o X = 19) in ZIF-8/AG composites, though with diminished adsorption capacity relative to pristine ZIF-8. While exhibiting substantial liquid-phase adsorption, the composite showed limited gas-phase selectivity, indicating hydrogen-bonding-mediated adsorption mechanisms. This work highlights the correlation between selectivity and capacity in MOF-based aerogel adsorbents for the separation of aromatics.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Mian Zhu,Chao Lyu,Feng Dai,Jingxian Liu
To develop an environmentally friendly CO 2 capture technology, composite adsorbent beads were synthesized through the in situ growth of ZIF-8 in a nanocellulose gel scaffold prepared from pine needles-derived cellulose. The composite beads were subsequently functionalized with three ionic liquids ([BMIM][PF 6 ], [BMIM][BF 4 ], and [EMIM][TF 2 N]), which induced partial dissolution of the nanocellulose. This process resulted in the formation of unique wrinkled microstructures, resembling rice grains in morphology but exhibiting higher compressive strength. Notably, the IL-loaded CNF/ILs@ZIF-8 composites exhibited significantly superior adsorption performance over unmodified CNF@ZIF-8 (CZ) beads. Under static conditions (3 bar, 273 K), all three functionalized CNF/ILs@ZIF-8 variants enhanced CO 2 uptake capacities by > 46 %, with the [BMIM][PF 6 ] modified beads retaining 85.36 % of initial adsorption capacity after six adsorption–desorption cycles. Furthermore, under competitive dynamic adsorption (1 bar, 273 K), the [BMIM][BF 4 ] modified beads achieved a 43.12 % enhancement in CO 2 /N 2 selectivity compared to CZ. This work provides a MOF granulation strategy with process safety and environmental sustainability, potentially extending MOF applications in gas adsorption technologies.
研究领域:
环境科学
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材料工程
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化学工程
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纳米技术
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气体吸附
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DOI
高影响因子
ACS Omega
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2025
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IF 4.3
Luna Wang,Yan Gong,Yanming Miao,Zhifeng Zhang
To support the development of a low-carbon economy and contribute to the achievement of carbon neutrality, this study synthesized bifunctional zeolitic imidazolate framework-8-based nanozymes (ZNZs) with dual functionality: CO2 adsorption and carbonic anhydrase (CA)-mimetic catalytic activity. The influence of ZNZs at varying concentrations on the growth rate of microalgae, chlorophyll and carbohydrate content, and ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and CA activity were explored. Results indicated that after the addition of 5 mg/L ZNZs, the growth rate of microalgae increased by 7%. Furthermore, the maximum chlorophyll and carbohydrate contents reached 4.55 and 43.59 mg/L, respectively, which were 12.6 and 4.2% higher than those in the control group. Additionally, Rubisco and CA activity (intra- and extracellular) increased by up to 21.26, 10, and 8.3%, respectively. These findings demonstrate that ZNZs enhance the photosynthetic efficiency of microalgae and increase microalgae’s affinity for CO2, highlighting their promise as a strategy for improving carbon capture and sustainable bioenergy production.
研究领域:
环境科学
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纳米技术
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生物技术
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生物化学
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气候变化缓解
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Jianan Cui,Tingting Liu,Qian Zhang,Ting Wang,Xiaohong Hou
Various metal-based heterogeneous catalysts activated peroxymonosulfate for organic pollutants degradation are increasingly recognized as an environmentally important sewage treatment technology. In this study, polyvinyl pyrrolidone (PVP) modified Fe 3 O 4 loaded ZIF-67 magnetic catalyst with transition metal cobalt ion was prepared for the first time by microwave-assisted solvothermal (MS) method within 30 min to activate peroxymonosulfate. The microwave synthesis process changed the time-consuming shortcoming of conventional method. The catalytic activity of the synthesized Fe 3 O 4 -PVP@ZIF-67 was assessed on bisphenol F (BPF) removal. The result showed 99.8% BPF was removed under the conditions of catalyst content of 0.15 g·L −1 , PMS content of 0.3 mM, and pH without adjustment in 60 min. And the Fe 3 O 4 -PVP@ZIF-67/PMS system exhibited a quality catalytic performance when the solution pH of BPF varied from 3 to 11. Compared with humic acid (HA), inorganic anions (Cl − , H 2 PO 4 − , SO 4 2− , HCO 3 − , and CO 3 2− ) showed slight effect to the degradation system. The quenching experiment verified that the main active substance in this system was SO 4 − •. Based on the degradation intermediates identified by gas chromatography-mass spectrometer (GC–MS), the main degradation pathways were proposed for the degradation of BPF. Overall, Fe 3 O 4 -PVP@ZIF-67 as PMS activator is promising catalyst for sulfate radical-based wastewater treatment.
研究领域:
环境科学
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化学工程
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材料科学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Muyao Li,Xiangming Zhu,Linghui Yin,Shasha Feng,Zhaoxiang Zhong,Weihong Xing
The simultaneous removal of particulate matter (PM) and toxic gases (SO 2 , NO x , VOC S , etc.) remains a critical challenge in air pollution control. To address this, we developed a multifunctional zeolitic imidazolate framework-8 (ZIF-8)/polystyrene (PS) nanofiber membrane (ZIF-8/PS NFM), forming a hierarchical porous (micro-/ meso -/macroporous) structure for efficient PM capture and SO 2 adsorption. As a representative metal-organic framework, ZIF-8 offers exceptional gas adsorption capability due to its high specific surface area and uniform micropores. The incorporation of ZIF-8 nanoparticles into PS nanofibers enhanced the BET surface area (51 to 175 m 2 ·g −1 ), porosity (0.148 to 0.190 m 2 ·g −1 ), and tensile strength (0.24 to 1.45 MPa). In PM filtration tests, the optimized ZIF-8/PS NFM achieved outstanding removal efficiencies of 99.73 % (PM 0.3 ) and 99.96 % (PM 2.5 ), while maintaining low pressure drop (83 Pa and 27 Pa, respectively). Moreover, the membrane demonstrated a remarkable SO 2 adsorption capacity of 1370 mg·g −1 at 55 % relative humidity, attributed to its high surface area and abundant unsaturated Z n 2+ sites. This work provides a promising strategy for the synergistic capture of PM and SO 2 with high efficiency and stability.
研究领域:
环境科学
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材料科学
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纳米技术
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大气污染控制
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功能材料
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Yurou Feng,Amatjan Sawut,Rena Simayi,Xieraili Maimaitiyiming,Xueying Jiao
With the advancement of science and technology, the issue of wastewater pollution has escalated, necessitating urgent attention to wastewater treatment . In this study, a highly efficient adsorbent for Cu 2+ was successfully synthesized through in situ self-assembly using Ca 2+ as the cross-linking agent in ZIF-8@ALG composite hydrogel. The results demonstrated that the incorporation of Ca 2+ as the cross-linker enhanced both adsorption capacity and swelling properties of ZIF-8@ALG composite hydrogel. Adsorption performance evaluation revealed that the hydrogel followed pseudo-second-order kinetic model for Cu 2+ adsorption and Freundlich isotherm model with a theoretical maximum adsorption capacity of 309.57 m g −1 . Thermodynamic analysis indicated that Cu 2+ adsorption onto the hydrogel occurred spontaneously with heat absorption. Furthermore, excellent reusability was observed after five cycles of usage without significant loss in adsorption efficiency. Overall, these findings highlight the potential application of ZIF-8@ALG composite hydrogel as an effective solution for wastewater remediation and recovery of heavy metal ions.
研究领域:
环境科学
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材料科学
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化学工程
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环境污染治理
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重金属去除
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2021
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IF 7.312
Fei Guo,Dongsheng Li,Rui Ding,Jiaming Gao,Xuehua Ruan,Xiaobin Jiang,Gaohong He,Wu Xiao
Two-dimensional nanomaterials have the characteristics of high aspect ratio and high space utilization, which has huge potential advantages in gas separation. In this work, g-C 3 N 4 two-dimensional nanosheets with sieving pore structure were selected as templates and combined with ZIF-90 to construct a 0-dimensional/2-dimensional composite material ZIF-90@C 3 N 4 (ZCN). The complete two-dimensional g-C 3 N 4 nanosheets were stripped under acid etching conditions at 25 °C. ZIF-90 was distributed in an orderly manner on the two-dimensional nanosheets, and the nanosheets were spread out due to the growth of ZIF-90 to provide more free volume. The gas permeation experiment proved that the ZCN has a better CO 2 /N 2 separation performance. The ZCN/Pebax mixed matrix membrane (MMM) with the optimized 8.0 wt% ZCN loading showed an improved CO 2 permeability of 110.5 Barrer and a CO 2 /N 2 selectivity of 84.4, surpassing the Robeson upper bound (2008). The results demonstrated that the designed composite filler with 2D nanosheets is an effective strategy to enhance gas separation performance of MMMs and verified the application potential in gas purification industry.
研究领域:
材料科学
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化学工程
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气体分离技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）