CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Ning Xia,Jiale Zhao,Xinlin Zha,Guanfei Gong,Jie Yu,Xiufang Zhu,Mufang Li,Dong Wang
Efficient waste heat recovery via thermoelectric materials offers a promising way to boost energy efficiency, making performance enhancement strategies crucial in thermoelectric research. Here, we propose an effective synergistic optimization strategy for thermoelectric materials, focusing on enhancing mechanical properties, reducing thermal conductivity, and improving Seebeck coefficients. To achieve this, metal-organic frameworks (MOFs) with alkaline and amphoteric groups are synthesized and incorporated into poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) to fabricate UiO-66-NH 2 /PEDOT:PSS (UNPP) and UiO-66-NH-SO 3 H/PEDOT:PSS (UNSPP) composite films. The electrostatic interactions between MOFs and PEDOT:PSS significantly reinforce the mechanical properties of UNPP and UNSPP. Furthermore, due to the isolation and “dragging effect” of MOFs on flexible PEDOT: PSS chains during the drying process, UNPP and UNSPP films exhibit hierarchical porous structures, achieving ultra-low thermal conductivity of 0.021 and 0.042 W·m −1 ·K −1 respectively, with the former, to the best of our knowledge, being the lowest reported value for PEDOT:PSS-based thermoelectric films. Additionally, MOF doping influences carrier transport within the composite films, leading to an improved Seebeck coefficient of up to 30.8 μV·K −1 . The UNSPP show a maximum ZT of 0.263. This work presents an innovative strategy for efficient synergistic optimization of MOF/PEDOT:PSS films, highlighting their potential in wearable electronics and waste heat recovery.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Lingmei Zhu,Hengyu Pan,Huijie Wei,Chang Gao,Tiance Zhang,Maolin Zhou,Qiang Luo,Boyang Tian,Jianhua Wang,Yongping Hou,Yongmei Zheng
Atmospheric water harvesting (AWH) technology offers a sustainable and innovative solution to address water scarcity in arid and remote regions, with its performance primarily dependent on the water adsorption capacity and kinetics of the adsorbent materials. However, conventional materials still face efficiency limitations under high-humidity conditions. Inspired by the unique hump structure of spider silk, this work innovatively develops bioinspired porous nanofibril-humped fibers (BPNF) through a green synthesis approach. The hierarchical porous architecture is constructed via radical polymerization and aqueous-phase in situ growth of MOF-303, eliminating the need for toxic reagents, while microfluidic spinning enables bionic hump structuring with minimal energy consumption. By integrating micro/nanochannels and hydrophilic surface modifications, the material achieves synergistic optimization of low diffusion resistance and high water harvest efficiency. MOF-303 is completed through in-situ hydrothermal growth and ensures the environmental friendliness of the synthesis process. Experimental results demonstrates that the BPNF achieves a remarkable water harvesting rate of 1.63 g cm −2 h −1 at 90–100 % RH, outperforming conventional materials by 2.3 times, with a 62 % reduction in carbon footprint. This work establishes a new paradigm for designing high-efficiency, sustainable AWH materials, combining biomimetic structural engineering with green manufacturing principles. This study provides insight into the design of novel AWH materials, which can be extended to some practical applications, e.g., water engineering in industry or agriculture systems.
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Materials
·
2025
·Vol. 18
·期 14
·3419
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IF 3.2
Muhammad Sabir,Mahmoud Sayed,Iram Riaz,Guogen Qiu,Muhammad Tahir,Khuloud A. Alibrahim,Wang Wang
The rapid recombination of photoinduced charge carriers in semiconductors remains a significant challenge for their practical application in photocatalysis. This study presents the design of a step-scheme (S-scheme) heterojunction composed of carbon nitride (g-C3N4) and nickel-based metal–organic framework (Ni-MOF) to achieve enhanced charge separation. The establishment of an S-scheme charge transfer configuration at the interface of the Ni-MOF/g-C3N4heterostructure plays a pivotal role in enabling efficient charge carrier separation, and hence, high CO2photoreduction efficiency with a CO evolution rate of 1014.6 µmol g−1h−1and selectivity of 95% under simulated solar illumination. CO evolution represents an approximately 3.7-fold enhancement compared to pristine Ni-MOF. Density functional theory (DFT) calculations, supported by in situ irradiated X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR) experimental results, confirmed the establishment of a well-defined and strongly bonded interface, which improves the charge transfer and separation following the S-scheme mechanism. This study sheds light on MOF-based S-scheme heterojunctions as fruitful and selective alternatives for practical CO2photoreduction.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Wei Ling,Peng Liao,Jiawei Zhu,Jianxin Wu,Caiwei Hu,Xianke Zhang,Jujun Yuan,Zuzhou Xiong,Xiurong Zhu,Chuicai Rong
Metal–organic framework (MOF) derivatives have emerged as promising candidates for designing lightweight, high-performance electromagnetic wave absorption (EMWA) materials owing to their tunable porosity, compositional diversity, and structural flexibility. In this study, a hybrid material (Nd/Fe-MOF) comprising Nd- and Fe-based MOFs was constructed via ion-exchange engineering based on an MOF-plus-MOF strategy, involving partial exchange between Nd³⁺ and Fe³⁺ ions. The subsequent pyrolysis of Nd/Fe-MOF yielded a particle-decorated bundle-like Nd 2 O 3 /Fe@C nanocomposite, which exhibited an exceptional EMWA performance with a minimum reflection loss (RL min )of −60.13 dB and an effective absorption bandwidth (EAB) of 5.0 GHz at a thin thickness of 1.8 mm. Moreover, Nd 2 O 3 /Fe@C also displayed an enhanced absorption with an EAB of 2.1 GHz (5.2–7.3 GHz) at low-frequency C band. This outstanding EMWA behavior can be attributed to the optimized impedance matching induced by the introduction of Nd 2 O 3 , and the prolonged propagation paths of EMW caused by the bundle-like structure. In order to present the practical application, CST simulation showed that the reduction value of radar cross section (RCS) of Nd 2 O 3 /Fe@C could reach up to 32.6 dB m² compared to the pure perfect electric conductor (PEC) substrate. Therefore, this study demonstrates the feasibility of employing ion-exchange engineering for the optimization of electromagnetic parameters and the subsequent development of high-efficiency rare earth–based absorbers.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 9
·1-15
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IF 5.3
Wu Yuqi,Shan Xueling,Zhao Ziyu,Jiang Ding,Yan Guoping,Wang Wenchang,Shiigi Hiroshi,Hu Zhibang,Chen Zhidong
A dual-ligand strategy was employed to construct an electrochemiluminescence (ECL) sensing platform based on dual-ligand Tb-MOF and Ag 3 PO 4 @TCPP for sensitive detection of chloramphenicol (CAP), demonstrating its potential applications in environmental monitoring and food safety. The dual-ligand Tb-MOF can be used as a co-reactant promoter, facilitating the rapid electroreduction of S 2 O 8 2− to generate more oxidative mediator SO 4 •− , thereby enhancing the luminescence efficiency of the luminescent material Ag 3 PO 4 @TCPP. Furthermore, the integration of Ag 3 PO 4 @TCPP emitter could effectively overcome the aggregation-caused quenching (ACQ) effect of TCPP and then increase the luminescence intensity by seven-fold, which was attributed to the efficient electron transfer and energy transfer between Ag 3 PO 4 and TCPP. Additionally, ECL spectra and electron spin resonance (ESR) spectra were utilized to investigate the possible ECL mechanism of the dual-ligand Tb-MOF/Ag 3 PO 4 @TCPP system. As a proof of concept, we successfully established an ECL biosensor for detecting CAP, which displayed a wide linear range (10 −6 ~ 10 −15 M) and low detection limit (8.29 × 10 −16 M), demonstrating practical feasibility. This study introduces a dual-ligand strategy to enhance ECL signals, expands the application scope of dual-ligand lanthanide MOFs, and provides new insights into designing high-performance sensing platforms. Graphical
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COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Yue Lian,Xilin Wang,Hong Chen,Yong Hu,Mengqi Liang,Qiaoyu Huang,Zhaoxia Chen,Yong Liu,Yuhong Zhang
With the rapid development of industrial activities, oil spills have occurred frequently at sea, causing increasingly severe ecological damage and environmental pollution. However, traditional superhydrophobic sponges can only adsorb low-viscosity oils and are ineffective for high-viscosity crude oils with poor fluidity. Therefore, there is an urgent need to develop novel materials capable of effectively addressing crude oil spills. In this paper, LA-MOF was prepared by modifying zirconium-based metal-organic framework (UiO-66-NH 2 ) with lauric acid (LA), and a photothermal superhydrophobic sponge (LA-MOF@PDA@MS) was fabricated by sequentially depositing polydopamine (PDA) and LA-MOF onto melamine sponges (MS). The resulting LA-MOF@PDA@MS exhibits excellent water repellency, with a water contact angle (WCA) of 155.5°, along with good self-cleaning properties, chemical stability, and mechanical durability. The modified sponge demonstrates an oil absorption capacity ranging from 28.60 to 56.83 g/g, with separation efficiencies exceeding 97 % for the select oils. Moreover, the LA-MOF@PDA@MS exhibits remarkable photothermal performance, capable of elevating its temperature to 68.3 °C within 300 s under simulated sunlight irradiation. The heating capability significantly reduces the viscosity of crude oil, enabling efficient absorption. The sponge achieves a saturated crude oil uptake of 60.7 g/g with a transfer rate of 5.49 g/min. Furthermore, the modified sponge displays excellent anti-icing and antimicrobial properties, further extending its service life in practical applications. These superior characteristics make the LA-MOF@PDA@MS sponge a highly promising candidate for oil spill remediation.
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TALANTA
·
2024
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IF 5.6
Haojie Xie,Lin Wang,Xiaomeng Yu,Tianci Zhou,Minghui Wang,Jie Yang,Tao Gao,Genxi Li
The construction of hybrid materials is significant for the exploration of functionalities in colorimetric biosensing due to its structural designability and synergy effects. In this work, a COF-on-MOF hybrid nanomaterial has been newly synthesized for colorimetric biosensing. Experimental results reveal that on-surface synthesis of COF on MOF brings nanoscale proximity between COF and MOF, which exhibits more than two folds of peroxidase-like activity as compared to single Fe-MOF. Therefore, by using the MCA@Fe-MOF nanomaterial with the assist of a specific acetyl-peptide, MCA@Fe-MOF can serve as an efficient signal reporter for colorimetric assay of histone deacetylase (HDAC), and the limit of detection (LOD) can be as low as 0.261 nM. Looking forward, the demand for diverse and promising COF-on-MOF nanomaterials with varied functionalities is anticipated, propelling further exploration of their role in colorimetric biosensing.
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ADVANCED FUNCTIONAL MATERIALS
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2024
·
IF 18.5
Liyuan Zhou,Hongwei Pan,Guijie Yin,Yang Xiang,Pingping Tan,Xu Li,Yinzhu Jiang,Maowen Xu,Xuan Zhang
Separators serve as critical components in batteries, bearing the responsibility for battery safety. In addition to the demand for increased flame resistance of separators, there is a growing interest in the additional functions of battery separators. In this work, a multifunctional coating integration strategy is proposed for battery separators via the versatility of metal–organic frameworks. A versatile and high-safety MIP-202@2320 composite separator is engineered and it is integrated into lithium–sulfur batteries. The presence of Cl − and the porous structure of MIP-202 impart flame-retardant characteristics and high electrolyte retention (80%) to resulting separators. Moreover, coupled with the negatively charged electron cloud formed by Cl − ions within the channels, it can selectively impede the polysulfides from migrating toward the anode, while concurrently facilitating the movement of Li + ions. The assembled lithium–sulfur battery with MIP-202@2320 as the separator maintains an impressive 71.8% capacity retention even after 600 cycles at a 0.5C rate. This multifunctional integration strategy not only boosts the performance of lithium–sulfur batteries but also pioneers a new direction for the design of future battery separators for different kinds of batteries.
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ACS Nano
·
2022
·
IF 18.027
Kai Huang,Wenbin Liu,Wenying Wei,Yanan Zhao,Pengzhen Zhuang,Xiaoxuan Wang,Youfa Wang,Yihe Hu,Honglian Dai
Chronic wounds are characterized by long-term inflammation and persistent infection, which make them difficult to heal. Therefore, an urgent desire is to develop a multifunctional wound dressing that can prevent wound infection and promote wound healing by creating a favorable microenvironment. In this study, a curcumin-based metal–organic framework (QCSMOF-Van), loaded with vancomycin and coated with quaternary ammonium salt chitosan (QCS), was prepared. Multifunctional composite hydrogels were conveniently synthesized by combining methacrylic anhydride modified gelatin and methacrylic anhydride modified oxidized sodium alginate with QCSMOF-Van through radical polymerization and Schiff base reaction. It is important to note that the QCSMOF-Van could capture bacteria through the positive charges on the surface of QCS. In this process, due to the synergistic effect of broad-spectrum antibacterial Zn2+ and vancomycin, the metabolism of bacteria was well inhibited, and the efficient capturing and rapid killing of bacteria were achieved. The QCSMOF-Van hydrogels could precisely regulate the balance of M1/M2 phenotypes of macrophages, thereby promoting the regeneration of nerves and blood vessels, which promotes the rapid healing of chronic wounds. This advanced cascade management strategy for tissue regeneration highlights the potential of multifunctional composite hydrogels in chronic wound dressings.
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Cell Reports Physical Science
·
2024
·
IF 7.9
Mengfan Mao,Shengfei Liu,Xiaolong Zhong,Yue Lin,Cuiying Lin,Guoqing Hu,Kang Liang,Chuanhui Huang,Zhenyu Lin
Metal-organic frameworks (MOFs) have emerged as promising platforms for enzyme immobilization. Nevertheless, conventional MOF carriers encounter challenges, including restricted catalytic activity and inadequate acid stability, thereby limiting their applicability in oncological contexts. Here, glucose oxidase and ZIF-8 (a common MOF carrier) are chosen as models. Hierarchically hollow two-dimensional conjugated MOF (Zn-HHTP [zinc 2,3,6,7,10,11-hexahydroxytriphenylene]) nanocapsules are constructed by a mild ZIF-8-to-Zn-HHTP transformation at room temperature to boost the ex vivo and in vivo biocatalytic activity and stability of enzymes. The hierarchical Zn-HHTP nanocapsules feature hollow nanostructures and mesoporous-microporous structures (4.2 and 1.2 nm), which are beneficial for enhanced biocatalytic activity and maintaining enzyme conformation. Glucose oxidase@Zn-HHTP exhibits 2.5 times higher catalytic activity than that of glucose oxidase@ZIF-8. Importantly, nanocapsules exhibit higher acid stability than the parental ZIF-8, allowing them to stably traverse the acidic microenvironment of a tumor and achieve intracellular glucose detection to discriminate normal and cancerous cells.
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Nana Li,Hao Shen,Mengdi Hao,Wanqiu Huang,Ying Han,Fan Yang,Shaoning Yu
α-Amylase not only has a wide range of applications in the food industry (especially baking, alcoholic beverage manufacturing and sugar production), but also serves as a core enzyme in the human digestive system, serving as an important parameter in the diagnosis of pancreatic diseases. Nevertheless, current methods still face challenges of numerous reagents, complex operation process, high cost and unsatisfactory sensitivity, restricting their utilization in on-field detection. Thus, the development of facile, low-cost, and sensitive strategies to monitor α-amylase activity is desperately required. Herein, we report the fabrication of a hybrid nanozyme through the in situ assembly of a hydrogen-bonded organic framework (HOF) onto an amino-functionalized metal-organic framework (MOF). The enhanced substrate channels and introduced affinity groups significantly improved the biocatalytic performance of the hybrid nanozyme NMOF@DHOF, leading to a strengthened colorimetric signal. Leveraging its high activity and stability, an ultrasensitive colorimetric platform was developed for the rapid detection of α-amylase activity. The assay platform utilized the interaction between α-amylase and starch-cross-linked NMOF@DHOF (NMOF@DHOF@Starch), where α-amylase hydrolyzed starch and led to the aggregation of nanoclusters, resulting in a weakening of the peroxidase activity. The proposed colorimetric strategy produced a linear response over a relevant range of α-amylase levels (1–30 U·L −1 ) with a low detection limit (0.68 U·L −1 ) and significant specificity. The platform's sensitivity and applicability were validated for α-amylase detection in complex matrices, including fermentation samples and human serum. This work establishes a novel biosensing platform design framework with significant potential to advance rapid analysis of α-amylase in both fermentation process monitoring and clinical disease diagnostics. Through facile replacement of particular crosslinking agents, the proposed platform is able to be utilized to quantify the activity of other types of enzymes, offering a beneficial guideline for the establishment of other enzyme analysis systems.
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Journal of Materials Chemistry B
·
2025
·
IF 5.7
Zhiwen Hu,Fangjiu He,Anxiong Liu,Xuan Zhao,Shuangquan Wu,Jian You,Qifa Ye,Xiaowen Shi,Zibiao Zhong,Ruilong Shao
Liver failure, marked by a rapid or progressive decline in liver function, leads to complications such as hyperbilirubinemia and infections, contributing to approximately 2 million global deaths each year. Current hemoperfusion methods for hyperbilirubinemia treatment are limited by their low adsorption selectivity and inadequate biosafety, necessitating better treatments. In this study, a chitosan-based HKUST-1 aerogel (HC) was developed as a highly selective, biosafe, and antibacterial adsorbent. The integration of HKUST-1 with chitosan formed an aerogel that achieved high bilirubin adsorption in vitro along with significant biosafety, anticoagulant properties, and antibacterial activity against Staphylococcus aureus and Escherichia coli. In an animal model of hyperbilirubinemia, the HC aerogel demonstrated 53.8% bilirubin clearance from the whole blood. These findings suggest that the HKUST-1/chitosan aerogel is a promising candidate for liver failure treatment, effectively combining bilirubin adsorption with infection control in complex blood environments.
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