BIOELECTROCHEMISTRY
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2026
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IF 4.9
Zijie Pi,Yuanyuan Zhang,Rongqin Yang,Lin Liu,Yu Huang,Yingchi Wu,Tao Gou,Honghao Kang,Tao Zhang,Xiaoling Yang,Xiaoling Liao
A high-performance nanozyme electrochemical sensor was engineered for the sensitive detection of hydrogen peroxide (H 2 O 2 ). The sensor is based on a synergistic ternary nanocomposite of ZIF-8, reduced graphene oxide (RGO), and platinum nanoparticles (Pt NPs). In this design, the Pt NPs serve as the catalytic centers with intrinsic peroxidase-like activity, effectively mimicking natural enzymes to catalyze the electrochemical reduction of H 2 O 2 . This nanocomposite was immobilized on a glassy carbon electrode (GCE) via a combined drop-casting and electrodeposition strategy. Morphological and structural analyses using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS) confirmed the successful fabrication of a uniform nanocomposite architecture. Systematic optimization revealed that the sensor exhibited excellent detection performance for H 2 O 2 , with a sensitivity of 22.3 μA mM −1 cm −2 ( n = 4), a detection limit as low as 59 nM (S/N = 3), a limit of quantification of 0.197 μM, and a linear range of 62 nM–13.07 mM, exhibiting good selectivity and reproducibility. Importantly, the sensor was successfully applied for the real-time, in-situ monitoring of H 2 O 2 released from zebrafish embryos under cadmium ion (Cd 2+ ) induced oxidative stress. This work offers a promising tool for the early assessment of heavy metal-induced oxidative damage.
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高影响因子
DESALINATION
·
2026
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IF 9.9
Yueqi Zhou,Canming Hu,Yueyuan Xu,Xinyao Pei,Mengrui Shi,Xiao Zhu,Chengli Ding
ZIF-8 improves HTO dispersion and ion transport within the cellulose aerogel. • ZIF-8/HTO@CA achieves 29.85 mg/g Li + uptake and 58.62% brine extraction. • Li + selectivity is governed by HTO recognition, dehydration, and lattice migration. Selective lithium recovery from high-Mg/Li salt-lake brines remains challenging because of competing ions and slow ion transport. In this study, a ZIF-8-functionalized H 2 TiO 3 (HTO)/cellulose composite aerogel (ZIF-8/HTO@CA) was prepared for Li + adsorption. The cellulose aerogel provided a three-dimensional support for particle immobilization and recovery. ZIF-8 improved HTO dispersion and provided additional transport interfaces. The composite had a specific surface area of 117.89 m 2 ·g −1 and retained a mesoporous structure. Its Li + adsorption capacity reached 29.85 mg·g −1 at pH 11 and 298 K. Nonlinear isotherm fitting showed that the Langmuir model gave a better description of the equilibrium data, with a fitted maximum capacity of 34.53 mg·g −1 . Both pseudo-first-order and pseudo-second-order models reasonably described the adsorption kinetics. Competitive adsorption tests showed preferential Li + uptake over Na + , K + , Mg 2+ , and Ca 2+ . The Li + /Mg 2+ separation factor increased from 46.29 for pristine HTO to 80.33 for ZIF-8/HTO@CA. In natural salt-lake brine with an initial Mg/Li mass ratio of 706, the composite achieved a single-stage Li + extraction efficiency of 58.62% without additional pH adjustment. The adsorption efficiency was 77.34% after the sixth adsorption–desorption cycle. Zeta-potential measurements and DFT calculations suggest that Li + selectivity mainly originates from the intrinsic recognition of HTO and the combined effects of ion dehydration and lattice migration. ZIF-8 mainly improves particle dispersion, accessible interfaces, and ion transport. These results demonstrate the potential of ZIF-8/HTO@CA for lithium recovery from complex brines.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
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IF 5.4
Heran Zhao,Yan Zhao,Huiliang Zhang,Junjia Bian,Zhixin Zhang,Baochang Jin,Mingyu Wang,Hongwei Pan,Yuqin Ma,Jingxuan Zhao
Multilayer PVDF membrane with TiO₂/ZIF-8 and CS-SDAEM brush. • Superhydrophilic: water contact angle drops to 0° within 1.3 s. • Pure water flux 1440 L·m⁻²·h⁻¹ and dye rejection over 93%. • Synergy enables > 93% flux recovery after 10 cycles without cleaning. • Excellent stability against ultrasonication, abrasion, and harsh chemicals. Conventional polymer separation membranes suffer from severe fouling, limiting their efficiency in wastewater treatment. To address this issue, we develop a multilayer-modified PVDF membrane by integrating a TiO₂/ZIF-8 photocatalytic layer and a CS-SDAEM zwitterionic polymer brush. The TiO₂/ZIF-8 nanoparticles are deposited on the membrane surface, followed by crosslinking and grafting of CS-SDAEM, which forms a robust hydration layer and physically encapsulates the nanoparticles. The resulting membrane exhibits superhydrophilicity (water contact angle drops to 0° within 1.3 s) and achieves a pure water flux of 1440 L·m⁻²·h⁻¹ with over 93% dye rejection for various dyes. Owing to the synergistic adsorption, photocatalysis, and antifouling effects, the membrane shows excellent self-cleaning ability, maintaining a flux recovery rate > 93% after 10 photocatalytic cycles without chemical cleaning. In addition, it exhibits excellent mechanical and chemical stability when subjected to ultrasonication, abrasion, and exposure to aggressive chemicals. This multilayer strategy offers a promising route to construct high-performance, long-lasting separation membranes for advanced water treatment. Download: Download high-res image (349KB) Download: Download full-size image
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2026
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IF 4.8
Xinyuan Zhao,Hui Pan,Wenwen Chen,Wei Zhang,Chuanxi Liu,Mengjie Wang,Ming Shang,Cuijuan Wang
High index facets of Au TOHs/ZIF-67/PTFE enables good sensitivity. • Supports air sampling and testing suitable for on-site settings. • Applicable to both airborne and aqueous samples for versatile monitoring. • Rapid detection (<5 min) for practical use. Monitoring of pesticides in air and water is essential for assessing occupational exposure and ensuring environmental safety. In this study, an integrated point-of-use (POU) surface-enhanced Raman scattering (SERS) platform based on a high-index Au trisoctahedrons (Au TOHs)/zeolitic imidazolate framework-67 (ZIF-67)-decorated polytetrafluoroethylene (PTFE) membrane was developed for the rapid sampling and in situ detection of carbaryl (CBR), diquat (DQ), and paraquat (PQ) in air and water. The high-index facets of Au TOHs generate abundant plasmonic “hot spots”, thereby enhancing the sensitivity of SERS, while the porous PTFE film and ZIF-67 provide efficient analyte enrichment. The entire detection process was completed within 5 min. The bifunctional SERS-active substrate exhibited good thermal stability, spatial uniformity, reproducibility, and long-term stability. Strong linear relationships between SERS intensity of characteristic peaks and logarithmic analyte concentrations were obtained for CBR, DQ, and PQ in airborne and aqueous environments, with detection limits of 0.0044–0.94 ppb. In addition, the platform demonstrated good selectivity against interfering pesticides and satisfactory recovery rates. The results were consistent with conventional analytical methods, confirming the reliability of the proposed approach. This work provides a promising strategy for rapid on-site monitoring of pesticide contaminants in environmental media. Download: Download high-res image (620KB) Download: Download full-size image
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高影响因子
Composites Part C: Open Access
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2026
·
IF 7
Zhiguo Liu,Hongye Li,Xiangqi Miao,Yufei Chen,Zhengfeng Jia,Meng Liu,Jinming Zhen,Ran Zhang,Liping Wang,Bo Wang
A solvent-free BDB@ZIF-8 nanofluid was successfully synthesized and characterized. • The nanofluid exhibited liquid-like behavior and excellent dispersibility in epoxy resin. • The dual transfer film composed of iron oxides, a carbon-rich layer, and a liquid phase formed on the worn surface. • The friction coefficient and wear rate of BDB@ZIF-8 nanofluid reinforced resin composites reduces by 24.3% and 70.97% compared with pure resin. An innovative solvent-free route was developed for fabricating bamboo-derived biochar @Zeolitic Imidazolate Framework-8 nanofluids (code as: BDB@ZIF-8 NFs) via electrostatic assembly of BDB with ZIF-8, culminating in the covalent conjugation of a KH560-M2070 outer shell. The resulting NFs exhibited liquid-like behavior and hybrid organic-inorganic characteristics, leading to an excellent dispersibility within epoxy resin matrix. A comparative study on the tribological performance of resin composites reinforced with various fillers revealed that the BDB@ZIF-8 NFs provided the most significant enhancement. The synergy between the BDB@ZIF-8 core and its KH560-M2070 shell underpins this enhanced performance. The possible mechanisms are as follows: BDB and ZIF-8 act as fillers and rollers on the worn surface, thereby decreasing resin wear. Meanwhile, owing to the presence of the nanofluid, the friction mode during relative motion shifts from dry friction to boundary friction, resulting in a reduced friction coefficient (COF). On the other hand, a dual transfer film composed of iron oxides, a carbon-rich film derived from BDB nanosheets, and a liquid phase is squeezed out of the matrix onto the worn surface. These films collectively enhance the lubricity and durability of the composite. Download: Download high-res image (312KB) Download: Download full-size image
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ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Nail Aminov,Huan Liu,Decheng Meng,Liran Zhu,Xiaohan Guo,Cong Li,Xiaoqing Ye,Huanjun Li
Hair loss remains a prevalent dermatological concern with limited options for targeted, sustained transdermal therapy. Conventional topical formulations of minoxidil (MXD) suffer from poor skin penetration, rapid clearance, and low patient compliance. To address these limitations, we developed a three-dimensional-printed, dissolving microneedle (MN) system featuring a novel layered design: a recyclable polymerizable deep eutectic solvent (PDES) base and detachable, pH-responsive tips loaded with MXD-encapsulated ZIF-8 nanoparticles. This design allows for rapid insertion and dissolution of the drug-loaded needle tips, enabling the sustainable recovery and reuse of the PDES base through a simple ethanol-based regeneration protocol. The MNs exhibited excellent print fidelity, mechanical integrity (>50 mN fracture force), and skin penetration capability, along with minimal cytotoxicity and hemolysis. In vitro and in vivo evaluations confirmed pH-triggered drug release and potent hair regrowth performance in a cyclophosphamide-induced alopecia mouse model. Histological analysis revealed enhanced hair follicle density and demonstrated minimal systemic toxicity, highlighting its safety profile. Overall, this layered dissolving-recyclable MN platform for pH-triggered delivery of ZIF-8-encapsulated MXD represents a promising, sustainable strategy for transdermal delivery to treat hair loss.
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SCIENCE OF THE TOTAL ENVIRONMENT
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2022
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IF 10.753
Yaqiong Zhang,Xu Xu,Lei Zhang
Accurate on-site profiling of the pollutants is of vital significance for estimating environmental pollution . Herein, we propose a paper-based fluorescence-sensing system to precisely report the level of multiple pollutants. A high-performance fluorescence-sensor for apparatus-free and visual on-site tandem precisely reporting phosphate ions (Pi), o -phenylenediamine (OPD), and benzaldehyde (BA) levels have been fabricated successfully by introducing synthesized red emission (>600 nm) fluorescent chromophore 10-(diethylamino)-3-hydroxy-5,6-dihydrobenzo [c]xanthen-12-ium (HTD) into the environment of CoZn zeolitic imidazolate framework (CoZn ZIF) by a simple stirring method. CoZn ZIF@HTD with the bimetallic nodes not merely provided main Zn 2+ sites for specific recognition of Pi to generate an enhanced red fluorescent optical signal , Co 3+ /Co 2+ exhibited excellent peroxidase-like activity for the catalytic oxidation of OPD substrate in the presence of H 2 O 2 resulting in color changing from red to yellow. Subsequently, the obvious yellow fading of the OPDox species took place with the addition of BA. By virtue of the sensitively visual tandem detection of Pi, OPD, and BA, the sensor can be applied to real wastewater samples. Meanwhile, this fluorescent sensor was further adopted for practical application in confocal cell imaging and security inks. Overall, this work established a fluorescent sensing system with integrated multifunctional applications for environmental and biological samples, implying the great potential for simultaneous real-time cascade detection of various important pollutants with the merit of low-cost, time-saving, and easy-to-use.
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高影响因子
Journal of Water Process Engineering
·
2022
·
IF 7.34
Mengjie Fu,Chun Wang,Guangwu Sun,Changfa Xiao,Ying Ding
3D flower-like UiO-66-NH 2 @ZiF-8 (UZ) nanoparticles have porous structural properties and multifunctional functional groups exposed on the surface, which provide significant advantages in improving compatibility with polymers and exceptional molecular sieve performance. Poly( p -phenylene terephthamide) PPTA is an acid/alkali resistant porous membrane material. However, the preparation of highly permeable and selective nanofiltration (NF) membranes is still a challenging problem due to the low permeability of PPTA NF membranes. Therefore, in this study, PPTA/UiO-66-NH 2 @ZiF-8 (PUZ) membranes were prepared using spacer spray-assisted interfacial polymerization. It was investigated that the effects of different additions of 3D flower-like UZ nanoparticles on the physicochemical properties and structure of PUZ membranes. The results showed that the polyamide structures with different morphologies were formed on the PUZ membranes surface by depositing 3D flower-like UZ nanoparticles at a spraying frequency of 12 min −1 . When 1.3 g/L of 3D flower-like UZ nanoparticles were interval sprayed, the PUZ4 membranes surface showed a unique doughnut-like structure and featured tubular and doughnut-like interconnections. PUZ4 membranes exhibited 4.4 times higher permeance and maintained excellent dye rejection (methylene blue dye permeance up to 58.23 L/m 2 ∙h∙MPa and methylene blue dye rejection of 99.60 %) compared to pristine PPTA NF membranes (methylene blue dye permeance up to 13.25 L/m 2 ∙h∙MPa and methylene blue dye rejection of 92.10 %). In addition, the modified PUZ4 membranes had a great antifouling performance with a recovery ratio of 99.43 % for more than 6 cycles and a high rejection rate of 98.51 % at 0.1 MPa.
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高影响因子
Nanoscale
·
2022
·Vol. 14
·期 23
·8510-8524
·
IF 8.307
Xianming Zhang,Junhao Jiang,Qinghua Yu,Ping Zhou,Shiyu Yang,Jiashan Xia,Tao Deng,Chao Yu
The poor penetration of nanomaterials in solid tumours and difficulty in monitoring their penetration depth are major obstacles in their application for the treatment of solid tumours. Herein, pH-responsive carbon dots (ZCD) based on a zeolitic imidazolate framework (ZIF-8) were fabricated to achieve the deep delivery of the chemotherapeutic doxorubicin (DOX) via a hierarchical size/charge dual-transformation and transcytosis. The as-prepared ZCD accumulated in the solid tumour and the acidic tumour microenvironment further triggered its decomposition. Firstly, ZCD was decomposed by the weakly acidic extracellular microenvironment of the solid tumour, enabling it to transform into small and neutrally charged particles. Subsequently, these particles were endocytosed by lysosomes, and further disintegrated into smaller and positively charged particles, which could target the Golgi apparatus. Consequently, ZCD delivered DOX deep into the solid tumour via a size-shrinking strategy and Golgi-mediated transcytosis, thus significantly improving its antitumour efficacy. In addition, carbonization endowed ZCD with superior fluorescence property, which was enhanced in the acidic microenvironment, thus improving the sensitivity and accuracy of ex vivo monitoring of the penetration depth of the nanomedicine in real time. Collectively, our results confirmed that the carbon dots obtained via the direct carbonization of ZIF-8 simultaneously exhibited enhanced deep penetration into solid tumours and fluorescence, which could be monitored, and that the carbonization of functional materials is effective to enhance their fluorescence, and further broaden their applications.
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高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Yuxiang Mao,Jun Cheng,Hao Guo,Lei Qian,Jiacan Tu,Weijuan Yang
To enhance catalytic acid-base sites in ZIFs and efficiently promote conversion of microalgal lipids, a bifunctional catalyst with single-atom Fe-N 4 sites and Fe nanoparticles (NPs) was synthesized by pyrolyzing Fe-doped ZIF-8. Compared with ZIF precursors, Fe nanoparticles and coordinated Fe ions in Fe-N 4 sites enhanced Lewis acidity, while increased uncoordinated N atoms enhanced Lewis basicity. Therefore, the acidity of Fe-NC increased from 0.473 to 1.845 mmol/g, while basicity increased from 0.172 to 0.439 mmol/g. DFT calculations showed that the adsorption energies of acetic acid on the Fe–N 4 and Fe NP were −0.536 eV and −0.397 eV, respectively, exceeding that (-0.190 eV) on the Zn–N 4 site. The energy barriers for rate-determining steps over the Fe-N 4 and Fe NP were + 0.32 eV and + 0.21 eV, respectively, which were lower than that (+1.01 eV) over the Zn-N 4 site. The maximum biodiesel yield reached 98.3% over Fe-NC catalyst, higher than that (84.5%) over ZIF-8 catalyst.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2021
·
IF 3.764
Shahid Hussain,Haifeng Dong,Yanqiang Zhang,Guoxiong Zhan,Shaojuan Zeng,Huifang Duan,Xiangping Zhang
The efficient capture of carbon dioxide (CO2) has industrial, economic, and environmental significance. Here, CO2 capture performance in terms of CO2/CH4 selectivity for the zeolitic imidazolate framework (ZIF-8) is enhanced by impregnation of 1-n-butyl-3-methylimidazolium dicyanide [BMIM][DCA]. The preparation of ionic liquids (ILs)/ZIF-8 composites, their comprehensive characterization, and the impact of IL impregnation are all investigated. The crystal structure and morphology of ZIF-8 remained intact even after the impregnation of ILs, according to X-ray diffraction and scanning electron microscopy studies. The infrared spectroscopy known as Fourier transform infrared spectroscopy determines the interaction between ILs and ZIF-8 in the composite. The isotherm fitting was also performed by dual site Langmuir models, which showed good agreement with the experimental results. The CO2/CH4 selectivity results demonstrated that the ideal selectivity for the IL-impregnated ZIF-8 composite has five times higher selectivity than pristine ZIF-8 at 0.05 bar which is the highest reported selectivity. The normalized selectivity of this type of IL/ZIF-8 composite is also higher. This study suggested that the IL/MOF composite with a tunable structure have a strong potential for enhanced acid gas separation performance to meet the environmental challenges.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yingwei Li,Shiwei Weng,Shasha Wang,Guojie Zhang,Fusheng Liu,Mengshuai Liu
The development of novel catalytic materials that integrate multifunctional sites has significant implications for expanding the utilization of CO 2 resources. However, simultaneously achieving high activity and stability remains a formidable challenge. In this study, a series of ZIF-8(Zn/Co)@g-C 3 N 4 nanocomposites were prepared by employing a thermo-physical compounding strategy that involved the combination of nitrogen-rich graphitic carbon nitride (g-C 3 N 4 ) nanosheets with ZIF-8(ZnCo). The influences of different compositions of g-C 3 N 4 and ZIF-8(Zn/Co) on the catalyst structure were systematically investigated. Subsequently, the catalytic activities of these nanocomposites towards the cycloaddition reaction between CO 2 and epoxide were examined under different conditions. The presence of abundant Lewis base sites in g-C 3 N 4 facilitates CO 2 activation, while multiple Lewis acid sites in ZIF-8(Zn/Co) enable efficient epoxide activation. By working synergistically with a co-catalyst, tetrabutylammonium bromide (TBAB), CO 2 and epoxides can be efficiently reacted to synthesize the corresponding cyclic carbonates under mild or even atmospheric pressure conditions. The catalytic reaction conditions were optimized, and both the catalyst's recycling performance and the scope of epoxides with various substituents were investigated. The integration of g-C 3 N 4 and ZIF-8(Zn/Co) endows the catalytic material with exceptional structural stability and remarkable catalytic activity, thereby providing a new platform for highly efficient CO 2 conversion.
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高影响因子
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