COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yuedong Li,Hongdan Wu,Zhihui Zhou,Xianyuan Fan,Wenming Fu,Guoyuan Lei,Qiuyang Huang,Junlin Peng
To address the structural defects and performance limitations caused by nanoparticle aggregation and insufficient interfacial compatibility in conventional thin-film nanocomposite polyamide (PA) nanofiltration membranes, an interfacial engineering strategy was developed to construct organic solvent nanofiltration membranes via the in situ growth of amino-functionalized ZIF-8 (ZIF-8-NH 2 ) nanoparticles. A continuous and well-anchored ZIF-8-NH 2 interlayer was introduced between the polyimide support and the PA selective layer, which effectively mitigated nanoparticle aggregation and enhanced interfacial integrity, thereby promoting the formation of a dense and uniform PA layer. Performance evaluation demonstrated that, at an optimized ZIF-8-NH 2 growth cycle of three, the resulting membrane exhibited a pure-water permeance of 41.3 L·m −2 ·h −1 ·bar −1 and a methanol permeance of 16.9 L·m −2 ·h −1 ·bar −1 , while achieving rejection values of 65.1 % for NaCl and 99.9 % for Na 2 SO 4 . In ethanol, the membrane exhibited a low molecular weight cutoff of 456 g·mol −1 and maintained Congo red rejection above 99 % during continuous operation for 5 days, confirming its structural stability and operational durability.
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高影响因子
Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121293
·
IF 7.2
Yang Liu,Tingting Fan,Changhao Liu,Yun-Ze Long
Managing oily wastewater under harsh conditions poses a significant challenge in environmental protection. Conventional membranes are often ineffective in treating oily wastewater under complex environmental conditions and typically fail to achieve complete oil–water separation. This work reports the preparation of a reduced graphene oxide (rGO)/zeolitic imidazolate framework (ZIF-8) @ polyphenylene sulfide (PPS) fiber membrane by in-situ growth of ZIF-8 on the rGO-coated PPS fiber membrane. The incorporation of the rGO increases the roughness of the fibrous membrane and enhances the bond between the polymer membrane and the ZIF-8 layer, as the oxygen-containing groups of rGO can interact with the Zn 2+ of the ZIF-8 precursor, facilitating the preferential growth of ZIF-8 crystals on the rGO surface. The resulting rGO/ZIF-8@PPS membrane exhibits underwater superoleophobic and under-oil superhydrophilic properties, endowing it with switchable oil-water separation capabilities (oil-passing water-blocking or water-passing oil-blocking). During the oil (chloroform)/water separation process, it achieves high efficiency (99.96 %) and flux (27,176 L m −2 h −1 ). After 10 separation cycles using either water or oil as the permeating phase, the membrane maintains a high filtration flux (20,500 L m⁻² h⁻¹) and separation efficiency (99.97 %). Additionally, it can efficiently separate a range of oil/water mixtures under different acidic and alkaline conditions, retaining excellent separation efficiency and flux even after 10 cycles. This composite fibrous membrane provides a novel approach for treating large-scale oily wastewater in harsh environments.
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高影响因子
Catalysts
·
2026
·Vol. 16
·期 1
·80
·
IF 4
Rong Xing,Xinyu Zhang,Zhiqian Li,Yingna Chang,Rongguan Lv,Yuzhen Sun,Zhiyuan Zhao,Kefan Song,Jindi Wang,Huayu Wu,Fangfang Ren,Yu Liu,Jing Tang,Peng Wu
Photocatalysis driven by the visible light of solar energy has received considerable attention in the field of environmental remediation and clean energy production. In this work, monomeric sulfonated palladium phthalocyanine (PdPcS) was encapsulated in zeolitic imidazolate frameworks-8 (ZIF-8) crystals (denoted PdPcS@ZIF-8) through electrostatic interaction in the ammonia system, while their photocatalytic activity was well-maintained together with the structural regularity of ZIF-8 crystals. For comparison, a PdPcS/ZIF-8 sample was obtained from the traditional impregnation method. The13C NMR and UV-DRS spectra confirmed the difference between PdPcS@ZIF-8 and PdPcS/ZIF-8 in terms of the chemical environment effect for PdPcS. Under visible light, the optimal PdPcS@ZIF-8 catalyst achieved complete degradation of 0.1 mM bisphenol A in 120 min. It also exhibited excellent stability, retaining 81.5% activity after four cycles, far outperforming the impregnated sample (32.5%) due to effective encapsulation preventing PdPcS leaching. This versatile one-step synthetic strategy is expected to be useful for designing novel macromolecules@MOF composite materials.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2018
·
IF 3.927
Xuehua Ruan,Xinfang Zhang,Ziyuan Zhou,Xiaobin Jiang,Yan Dai,Xiaoming Yan,Gaohong He
Continuous ZIF-8 membranes have showed great potential for gas separation. The prospect is subjected to two pivotal issues: shorten the time to construct the ZIF-8 selective layer and tightly bond ZIF-8 layer onto the substrate. In our previous work, Zn(II)-doped polydopamine (Zn-PDA) linkage layer was proposed and effectual to solve these problems. In this research, the mechanism likely to support the improvements is studied intensively. The dominant factor is that Zn(II) ions can be chelating and depositing sufficiently in the linkage layer. The strongly alkaline condition for dopamine polymerization is also beneficial to Zn(II) chelation and deposition, which has been confirmed by DFT simulation, together with characterization tests, e.g., XPS, FTIR, and Zn(OH) 2 precipitation for Zn(II)–O coordination. Phenolic hydroxyl groups are deprotonated in the strongly alkaline environment with high Mulliken charge (−0.515 & −0.524 e) and become strong chelation sites to Zn(II). Subsequently, Zn(II) clusters extensively filled in the PDA linkage layer are acting as the starting sites for ZIF-8 heterogeneous nucleation and growth. The correspondence between Zn(II) clusters probed by EDX and nascent ZIF-8 crystals visualized by FE-SEM can support this phenomenon clearly. On the whole, the abundant starting sites in Zn-PDA enhanced ZIF-8 growth, and ZIF-8 growth from the rooting-in Zn(II) clusters created an indented and hinged boundary for tightly bonding ZIF-8 layer onto the substrate.
研究领域:
材料科学
·
膜技术
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配位化学
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纳米材料
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气体分离
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高影响因子
DESALINATION
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2026
·
IF 9.9
Shu Bi,Huoying Tan,Shiqiang Liang,Fan Yang,Jiamei Xin,Wenbin Wang,Zhi Geng,Chi Wang
Membrane distillation (MD), a promising thermal desalination technology, faces a critical challenge in its practical deployment: membrane wetting induced by low-surface-tension contaminants, which compromises separation efficacy and long-term operational stability. To address this challenge, we conceptualize and fabricate a photo-responsive composite nanofiber membrane endowed with an intrinsic self-cleaning capability to overcome this limitation. This MoO 3 @ZIF-8/PAES-CF 3 composite membrane is architected with a hierarchical roughness and engineered to exhibit dynamic, light-gated anti-wetting behavior. The strategic integration of hydrophobic and photoactive MoO 3 @ZIF-8 nanoparticles, within a fluorinated poly (arylene ether sulfone) (PAES-CF 3 ) matrix via electrospinning yields a robust, photoactive interfacial structure that concomitantly enhances surface hydrophobicity and mechanical integrity. In direct contact membrane distillation (DCMD), the optimized membrane demonstrates exceptional performance, achieving a water flux of 21.3 L·m −2 ·h −1 while maintaining a salt rejection rate exceeding 99.9%. Crucially, the membrane shows excellent resistance to wetting induced by sodium dodecyl sulfate (SDS) under light illumination, withstanding concentrations up to 0.15 mM. Moreover, under a feed solution containing 0.1 mM SDS, the membrane maintains stable operation for 24 h. This work presents a novel strategy for designing anti-wetting MD membranes, providing a foundation for the development of environmentally responsive and adaptive separation materials.
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高影响因子
ACTA PHYSICO-CHIMICA SINICA
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2026
·
IF 13.5
Xiaonan Liu,Zhi Lei,Maoxia Lu,Dongwei Ma,Chuan Wang,Zehong Wu,Daohai Zhang
Traditional electromagnetic shielding materials can no longer meet the rapidly growing demands of modern flexible electronic devices and advanced information technologies. Owing to their excellent flexibility, adhesion, stimuli responsiveness, and ease of processing and functional modification, hydrogels offer promising opportunities for developing flexible wearable electronic devices. In this study, PAM/CMC/Fe 3 O 4 @ZIF-67 multifunctional composite hydrogels were fabricated through a reverse-growth strategy combined with a one-pot polymerization method. First, flower-like Fe 3 O 4 microspheres were prepared via an ethylene glycol-assisted solvothermal method and subsequently coupled with ZIF-67 through a reverse-growth strategy to obtain the Fe 3 O 4 @ZIF-67 composite. Subsequently, the composites were introduced into a PAM/CMC-based three-dimensional network, forming a multifunctional hydrogel that integrates flexibility, high water content, and synergistic conductive–magnetic effects. The experimental results showed that the 3 mm-thick PCZF-2 hydrogels achieved an average EMI SE of 36.08 dB. It also exhibited a conductivity of 0.93 S m −1 , a compressive modulus of 398.0 kPa, a compressive strain of 64.1%, a water content of 625.72%, and a swelling ratio of 240.82%. The hydrogel also exhibited excellent adhesion capability and high sensitivity (GF = 1.40 within the strain range of 0–100%, R 2 = 0.995), enabling human–machine-interaction-friendly strain sensing. This study provides an effective strategy for constructing tough multifunctional materials with integrated electromagnetic interference shielding and strain-sensing functionalities. Functional Fe 3 O 4 @ZIF-67 composite fillers were constructed via a reverse-growth strategy and incorporated into a double-network composite hydrogel through a one-pot method. The synergistic effects of magnetic loss, dielectric loss, and multiple scattering induced by the fillers endow the material with excellent electromagnetic interference shielding performance. Meanwhile, the deformation-responsive conductive network enables highly sensitive human motion sensing, providing an effective pathway for the development of integrated flexible materials for electromagnetic protection and intelligent sensing. Download: Download high-res image (252KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9.1
Ating Li,Shuangjiang Li,Bo Wang,Tan Li,Wenbo Zhao,Honghong Liu,Zhiyong Xu
Constructing porous carbon adsorbents with SF 6 -matched ultramicropores is an effective route for recovering SF 6 from nitrogen-rich gas streams. Herein, hemin was introduced into ZIF-8 precursors to regulate pyrolysis-induced pore evolution and produce Fe,N-containing porous carbons without corrosive KOH activation. The optimized Fe,N-C-1000 displayed a large BET surface area of 1772.60 m 2 ·g −1 along with abundant ultramicropores mainly distributed at 0.5–0.65 nm, providing suitable confined spaces for adsorption of SF 6 . The Fe,N-C-1000 delivered an SF 6 adsorption capacity of 4.58 mmol·g −1 and an IAST selectivity of 222 at 298 K and 1.0 bar. Fixed-bed breakthrough tests verified the preferential retention of SF 6 over N 2 , as well as good regenerability and cycling stability. Structure-performance analysis suggests that the improved separation performance is mainly governed by hemin-directed ultramicropore formation, while the Fe/N-containing surface environment contributes additionally to SF 6 affinity. DFT calculations further support stronger SF 6 interaction with the Fe,N-C model than with the undoped carbon model. These results demonstrate that hemin-assisted pyrolysis provides a feasible KOH-free strategy for constructing MOF-derived ultramicroporous carbons for the capture and recovery of SF 6 .
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Yufan Wei,Jun Li,Xiaojie Zhang,Hongfang Zhao,Aixiu Gong,Xueting Han,Wanling Xie,Chenjing Lu,Yang Chen,Xiaohui Yang,Qi Tang,Xinxia Chang,Genxiong Tang
In pulpitis treatment, vital pulp therapy (VPT) aims to preserve pulp vitality and promote dentin regeneration. However, conventional pulp-capping materials usually lack reparative dentin-inducing activity and fail to regulate the local immune microenvironment effectively. In this work, valproic acid (VPA)-loaded zeolitic imidazolate framework-8 (ZIF-8) nanocomposites (VPA@ ZIF-8 NPs) were designed to achieve high VPA loading capacity, excellent encapsulation efficiency, and sustained and pH-responsive VPA release kinetics. Using a VPA-equivalent (VPA-eq) dosing strategy, we systematically evaluated its biocompatibility, antimicrobial properties, immunomodulatory effects, and dentin-regenerative potential across multiple methods. In vitro studies showed that when treated with VPA@ZIF-8 NPs, stem cells from human exfoliated deciduous teeth (SHEDs) exhibited enhanced proliferation, migration, and mineralization ability, and oral opportunistic pathogens Veillonella parvula and Streptococcus mutans showed suppressed growth and biofilm formation activities. Further, macrophage polarization assays revealed that VPA@ZIF-8 NPs promoted the M2-like polarization in THP-1 cells, indicating an anti-inflammatory function. Notably, the BMP2/SMAD1/RUNX2 pathway was activated by VPA@ZIF-8 NPs in the SHEDs. In vivo, local VPA@ZIF-8 NP application recapitulated the macrophage M2-like polarization and BMP2/SMAD1/RUNX2 pathway activation phenotype and contributed to marked reparative dentin bridge formation in a pulp exposure rat model. In summary, the multifunctional VPA@ZIF-8 NPs integrate biosafety, antibacterial, immunomodulatory, and dentin-regenerative-inducing capabilities, providing a promising and integrated strategy for vital pulp therapy against pulpitis.
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Mingyue Wang,Xiaohua Jia,Xiaoyu Zhang,Jin Yang,Haojie Song
Interfacial chemical locking enables stable Ga incorporation into solid lubricant coatings. • Ga (stress buffer), ZIF-8 (load support), graphene (shear reduction and transfer film) synergize. • Covalent bonds (Ga O, N H, Si-O-Si) prevent agglomeration and extrusion of metal under friction. Gallium-based liquid metals exhibit fluidity and reactivity at friction interfaces, creating a lubrication mode that merges liquid-film and solid-support effects. However, their incorporation into solid lubricant coatings faces critical challenges such as poor dispersion stability, insufficient load-bearing capacity, and a tendency to be squeezed out from the contact area. In this study, we successfully constructed an interface-stabilized, densely structured inorganic-organic composite coating, designated GaZGr-K-EP, by embedding a ZIF-8 framework into liquid gallium to stabilize its morphology, introducing graphene to mitigate the sedimentation of Ga/ZIF-8, and modifying the inorganic phase with KH550 to enable interfacial chemical bonding with the epoxy resin. This inorganic-organic interfacial bonding not only prevents coating failure during friction but also, for the first time, unlocks the solid lubrication and anti-wear mechanism of liquid gallium. In this mechanism, liquid gallium dissipates contact stress through localized flow, while ZIF-8 provides rigid load-bearing support. During friction, a Ga 2 O 3 oxide film forms and is reinforced by graphene to develop a continuous transfer film, achieving an ultralow friction coefficient of 0.055 and an ultralow wear rate of 4.33 × 10 −14 m 3 /N·m. This work demonstrates that interfacial chemical locking represents a novel strategy for realizing solid lubrication with liquid metals. Download: Download high-res image (204KB) Download: Download full-size image
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高影响因子
Micro and Nanostructures
·
2026
·
IF 3.1
Yuan Yuan,Min Zang,Fanxia Kong,Sen Yang,Xiaoyan Yang,Limei Li
PS@Ag@ZIF-8 sensor is constructed via room-temperature in-situ growth on monolayer colloidal crystals. • Introduced Ag nanoparticles greatly improve the sensor's optical features and structural color saturation. • The sensor selectively detects acetonitrile and alcohols by visible color change and reflection peak shift. • Fast response (<3 s), good recyclability for acetonitrile and high stability are achieved. • The design inspires low-cost portable gas sensors for environmental monitoring. In this work, we fabricated a high-performance optical sensor PS@Ag@ZIF-8 by sequentially depositing silver nanoparticles (NPs) and MOF thin films on the monolayer colloidal crystals surface via an in-situ growth method at room temperature. The rational introduction of silver NPs into the sensor structure remarkably improves its optical properties and structural color saturation. This sensor possesses excellent selective detection capability toward acetonitrile and alcohols. Moreover, the type and concentration of volatile organic pollutants (VOCs) vapors can be visually analyzed according to the shift of reflection peaks and distinct color differences in optical images. Meanwhile, it delivers an ultrafast response (<3 s) along with outstanding repeatability and recyclability. More importantly, it possesses a wide dynamic detection range, great linearity and exhibits excellent stability during operation. It is anticipated that this sensor provides a valuable reference for the development of low-cost, real-time and portable gas sensors for environmental monitoring. Download: Download high-res image (314KB) Download: Download full-size image
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Xiao Tian,Yajing Zhu,Qi Hong,Zhihao Liu,Ying Li,Meipeng Jian,Haiyan Li
Elastic two-dimensional (2D) metal-organic framework (MOF) nanosheet-based aerogels present a promising architecture for water remediation, yet often suffer from structural fragility and reduced porosity. Herein, we report an elastic 2D ZIF-8/graphene nanosheet aerogel (E-GZNA) synthesized via a facile cross-linking strategy using carboxymethyl cellulose (CMC) as a binder, overcoming the aggregation and recyclability bottlenecks of conventional MOF adsorbents. The resulting hierarchical porous structure of E-GZNA enabled rapid As(III) mass transfer, while CMC enhanced mechanical elasticity, allowing 50% compression for 50 cycles with 80% stress retention. E-GZNA exhibited a maximum As(III) adsorption capacity of 73.6 mg/g, significantly outperforming most macroscopic adsorbents. XPS and FTIR analyses revealed adsorption mechanisms involving Zn-O-As and N-O-As bond formation. DFT further confirmed As(III) adsorption on both sites with comparable adsorption energies. Fixed-bed column experiments further demonstrated effective arsenic removal to below the WHO standard, highlighting its potential for practical water treatment applications. This work advances MOF-based aerogels by integrating elasticity, high adsorption efficiency, and recyclability for sustainable As(III) removal.
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高影响因子
Science China-Materials
·
2021
·Vol. 64
·期 8
·1997-2007
·
IF 8.273
Fan Shuaikang,Wang Shilin,Wang Xiaobin,Li Zhuoyi,Ma Xu,Wan Xinyi,Hussain Shabab,Peng Xinsheng
Smart proton conductive metal-organic framework (MOF) membranes with dynamic remote control over proton conduction show high potential for use in advanced applications, such as sensors and bioprocesses. Here, we report a photoswitchable proton conductive ZIF-8 membrane by coencapsulating polystyrene sulfonate and graphene quantum dots into a ZIF-8 matrix (GQDs-PSS@ZIF-8) via a solid-confined conversion process. The proton conductivity of the GQDs-PSS@ZIF-8 membrane is 6.3 times higher than that of pristine ZIF-8 and can be reversibly switched by light due to photoluminescence quenching and the photothermal conversion effect, which converts light into heat. The local increase in temperature allows water molecules to escape from the porous channels, which cuts off the proton transport pathways and results in a decrease in proton conductivity. The proton conductivity is restored when the light is off owing to regaining water molecules, which act as proton carriers, from the surroundings. The GQDs-PSS@ZIF-8 membrane responds efficiently to light and exhibits an ON/OFF ratio of 12.8. This photogated proton conduction in MOFs has potential for the development and application of MOF-based protonic solids in advanced photoelectric devices.
研究领域:
材料科学
·
物理化学
·
纳米功能材料
·
膜科学
·
光电转换
·
智能响应材料
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DOI
高影响因子
危险品化学品经营许可证（带存储）