CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yuqing Sun,Mao Zhuo,Xin Yuan,Weixin Chen,Jian Zhang,Weimin Liu,Jian Li
Freshwater scarcity poses a significant challenge to global sustainable development. Solar-driven interface evaporation (SDIE) technology has garnered attention for its environmental friendliness and low cost, but it faces bottlenecks such as material costs and salt crystallization clogging. In this work, natural wood (NW), a biomass material with renewable properties and high cost-effectiveness, was selected as the substrate material, and a thin polyacrylamide (PAM) hydrogel layer was loaded on the wood channel structure through the modulation and design of the evaporator. Furthermore, hollow polypyrrole (PPy) nanotubes were introduced as a photothermal conversion material by the spraying technique to construct a hydrogel-wood composite solar evaporator (PWP). Based on the synergistic mechanism between the porous vertical channels of wood and the hydrogel layer, a dual driving force model of “bulk water-capillary force-osmotic pressure-vapor” is formed to optimize the water transport path. Moreover, the network structure formed by the hollow PPy nanotubes not only enhances light capture through multiple reflection mechanisms, but also reduces heat loss, achieving up to 97.8 % light absorption. With the dual driving force to optimize the water transfer path and combined with outstanding light trapping capability, the PWP evaporator realized excellent evaporation rate (2.31 kg m −2 h −1 ) and energy conversion efficiency (97.24 %) under one solar irradiation. Furthermore, PWP evaporator exhibited a remarkable capability to resist salt accumulation. Even after enduring a continuous evaporation process that lasted for 6 h within a 20 wt% NaCl solution, no observable salt crystal deposition was detected. Meanwhile, PWP evaporator have demonstrated the ability to operate stably in harsh environments, which opens up promising avenues for the advancement of cost-effective, high-performance wood-based evaporators.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Tong-Yu Li,Wen-Hao Geng,Ze-Long Bao,Peng-Fei Qian,Yu-Long Guo,Hong-Zhang Geng
Flexible thermoelectric materials hold great promise for wearable electronics and self-powering. However, p-type thermoelectric materials that combine multifunctionality, high performance and long-term stability are scarce. Here, we developed a flexible p-type TE-Fabric with excellent stress/thermoelectric sensing and electrical heating properties through molecular engineering strategies. It is worth noting that during the preparation of TE-Fabric, we found that dopamine modification could enable the ordered orientation of PEDOT:PSS. The dopamine-modified PEDOT: PSS treated with multi-layer superposition HCl can greatly improve the electrical conductivity of thermoelectric materials (2040.8 S·cm −1 ), while retaining the partial orientation of PEDOT. The TE-Fabric obtained through layer-by-layer self-assembly achieves a double breakthrough in Seebeck coefficient (27.3 μV·K −1 ) and electrical conductivity (2431.2 S·cm −1 ), while exhibiting excellent mechanical flexibility (elongation at break of 71.1 %, breaking strength of 14.8 MPa) and high-performance stability. Taking advantage of TE-Fabric's high conductivity characteristics, we found that TE-Fabric was able to produce a high efficiency thermal response (93.1 % electro-thermal conversion efficiency, 177.1 °C) at low voltage (5 V). At the same time, the flexibility and high-performance stability supported the advantage of TE-Fabric in stress sensing, with a fast response (0.213 to 0.218 s). The thermoelectric device constructed by alternating six sets of flexible p-type TE-Fabric and flexible n-type nickel sheets produces an output voltage of 9 mV at a temperature difference capable of 60 K. Based on this feature, we combine the thermoelectric generator with a mask to make a breath detection sensor device. By outputting different voltage signals, we can monitor the health status of human body in real time during deep breathing, static breathing, rapid wheezing and coughing. This pioneering work opens up new avenues for the development of flexible P-type TE materials with high stability and versatility.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Jiali Zhang,Tao Xue,Yongbiao Mu,Hongjie Li,Chao Yang,Limin Zang,Lin Zeng
The development of cathode materials that are well-matched with zinc anodes is critical for the advancement of zinc-ion hybrid capacitors (ZIHCs). Among various candidates, polypyrrole (PPy), a representative conductive polymer, has been extensively investigated as a cathode material due to its intrinsic conductivity and reversible redox activity. However, the practical application of PPy remains limited by an incomplete understanding of its charge storage mechanism. In this study, a straightforward approach is proposed to elucidate the charge storage behavior of PPy cathodes in ZIHCs. Specifically, using p-toluenesulfonic acid sodium as a dopant, PPy-coated carbon cloth electrode (denoted as PPy-CC) prepared of electrochemical deposition was employed as the cathode. In 1 M ZnSO 4 electrolyte, this electrode delivered a specific capacity of 124 mAh g −1 at a current density of 0.2 A g −1 and demonstrated excellent long-term cycling stability, retaining 71.2 % of its capacity after 5000 cycles at 5 A g −1 . To probe the underlying charge storage mechanism, X-ray photoelectron spectroscopy, X-ray diffraction, and in situ pH monitoring were conducted, revealing a dual-ion storage process involving both anion and cation participation during the electrochemical reactions. This work offers new insights into the charge storage mechanism of PPy-based cathodes and provides valuable guidance for the design of high-performance ZIHCs.
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CARBOHYDRATE POLYMERS
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2025
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IF 12.5
Qinglu Li,Sufeng Zhang,Xiaokai Jing,Nan Li,Ning Wei,Lei Li,Yao Feng,Jinrui Li,Yali Liu
The practical application of flexible supercapacitors is often constrained by the critical contradiction between structural disintegration of electrode materials under mechanical deformation and deterioration of electrochemical performance. Inspired by the multilayer wrapping structure of paper-roll-pencils, we propose a self-assembled multilayer interwoven electrode architecture. In this design, bacterial cellulose (BC) forms a multilayered outer scaffold via alternating winding, while polydopamine (PDA) enhances interfacial adhesion and electronic coupling between nitrogen-doped graphene (N-rGO). A continuous polypyrrole (PPy) pseudocapacitive layer further encapsulates the structure to form a conductive network, collaboratively forming a continuous cross-interface transport channel from nanoscale to microscale. This unique electrode architecture simultaneously enables stress-gradient buffering and electrochemical stability regulation under mechanical load. As a result, the electrode retains 96.3 % of its capacitance after 10,000 charge-discharge cycles and ultrasonic agitation (40 kHz/200 W). This work offers a novel strategy for constructing flexible energy storage electrodes with integrated cross-scale stress impedance and high electrochemical durability.
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PubMed
高影响因子
MATERIALS & DESIGN
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2025
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IF 7.9
Zhengda Chen,Xiangjun Zha,Cheng Wen,Kun Li,Jigang Huang,Wei Pu
Multi-material objects offer enhanced functionality by strategic integration of different materials, allowing tailored properties to meet specific performance requirements. Digital light processing (DLP) 3D printing, featuring high resolution and fast speed, has emerged as a leading method for creating single-material structures. However, it faces significant limitations when producing multi-material objects in the traditional layer-by-layer matter, as the approach requires frequent material switching, making the process prohibitively time-consuming. To address this challenge, we present a capillarity assisted multi-material 3D printing (CMM-3DP) method that leverages capillary pressure to generate multi-material objects block by block. This innovative approach achieves printing speeds with over a hundred times faster than the current multi-material DLP 3D printing. CMM-3DP demonstrates remarkable versatility, accommodating not only photosensitive materials such as hydrogels, polymers, and elastomers but also thermal curable resins and liquid metals—materials previously incompatible with conventional DLP 3D printing. By eliminating the layer-by-layer material switching process, CMM-3DP allows multi-material objects to be fabricated while avoiding both intricate motion system and resin contamination issue. Using a body centered cubic (BCC) array as the capillary structure, our research demonstrates that CMM-3DP can successfully create multi-material architectures ranging from micrometer to centimeter scale. Moreover, the versatility of CMM-3DP is validated by successful fabrication of various applications, including stimuli-responsive objects, flexible actuator, electric circuit, and biomimetic human hand. Our method substantially enhances the multi-material fabrication capability of DLP 3D printing, facilitating potential applications with multi-material devices.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2025
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IF 7.7
Xin Zhang,Shuyan Miao,Jing Zhou,Tingting Zhou,Tian Gan,Yong Tang
We present a disposable paper-based molecularly imprinted electrochemical sensor for highly sensitive and selective monitoring of phenolic pollutants. The sensor features a fully integrated three-electrode array fabricated through an eco-friendly vacuum filtration method, which utilizes single-walled carbon nanotube-based substrates to provide excellent conductivity, large surface area, and low-cost electrode platforms. These substrates enable effective deposition of hollow-structured zeolitic imidazolate framework-8-derived N-doped carbon polyhedrons supporting Pt single-atom catalysts (Pt-N-C) synthesized via high-temperature calcination. Subsequent electropolymerization of a molecularly imprinted polymer (MIP) on the electrode surface was achieved using 3,4-ethylenedioxythiophene and pyrrole as dual functional monomers. Comprehensive characterization demonstrates that the Pt-N-C architecture exhibits abundant atomic Pt catalytic sites, nitrogen-decorated hierarchical porosity, and maximized electrochemical accessibility, collectively contributing to exceptional detection sensitivity for multiple phenolic compounds including 2-chloro-4-methoxyphenol, 4-bromo-2-methoxyphenol, 4-aminophenol, and 4-nitrophenol. Concurrently, the MIP layer demonstrates rapid binding kinetics and high molecular recognition capacity, significantly enhancing selective identification capabilities. The developed sensor successfully achieves direct quantification of these phenolic contaminants in unprocessed complex wastewater samples without requiring pretreatment procedures.
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PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Yuliang Zhang,Yang Xu,Fei Wang,Wenchao Huang,Yanhua Lei,Xiaofeng Li,Xiaojing Sui,Zhiyan Li,Xueting Chang
This study presented a fabrication protocol for a multifunctional coating integrating photothermal responsiveness, self-lubrication, and self-healing properties. The coating was engineered by encapsulating tung oil (TO) within a polysulfone (PSF) matrix, leveraging the photothermal conversion capability of photothermal fillers to achieve localized thermal activation for on-demand lubricant release and crack repair. The PSF-encapsulated tung oil microcapsules (PSF-TO) and polypyrrole-coated boron nitride (PPy@BN) were uniformly dispersed in epoxy resin, followed by spin-coating or trickle-coating onto substrate surfaces. The coated substrate was thermally cured to form a robust composite film, with its photothermal performance, tribological performance, and self-healing capability systematically evaluated. The coating was able to reach a surface temperature of 83 °C under one sunlight intensity and was able to repair surface scratches within 155 s. At the same time, its delayed icing time can reach 380 s, and under a sunlight intensity, the surface icing can be melted and slipped off within 75 s. This work provided a scalable strategy for extreme mechanical environments, such as marine and aerospace applications.
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ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Xianrong Huang,Jingming Zhu,Mengyang Zhang,Yu Fang,Qisheng Liu,Fang Zhang,Xiang Lu
With the depletion of fossil fuels and rising environmental issues, there’s a pressing need for solar energy storage materials that boost solar utilization and decrease dependence on nonrenewables. Traditional organic phase change materials face limitations in solar energy storage applications due to their proneness to leakage and low light absorption coefficients. Herein, a novel strategy that involves the in situ polymerization of pyrrole on Pleurotus eryngii (Pe) biomass, addressing these challenges by improving light absorption while preserving the high porosity of Pe. The resulting phase change composites (PCCs) achieved an encapsulation rate of 89.7%, a light absorption rate of 96.1% within the wavelength range of 300–2500 nm, and an impressive photothermal conversion efficiency of 91.2% under simulated solar irradiation at an intensity of 5 suns. In summary, our innovative strategy effectively boosts the light absorption coefficient of Pe biomass while preserving its high porosity, providing a feasible solution for the large-scale and expedited manufacturing of solar photothermal energy materials. This work highlights the promise of biomass in driving renewable energy technology forward and supports the pursuit of sustainable energy solutions.
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Bioactive Materials
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2025
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IF 20.3
Zaiyan Wang,Jianxiang Zhu,Bobin Mi,Ming Ni,Yuming Xue,Yiling Deng,Lu Chen,Xiangyang Xu,Xiaoyan Li,Guohui Liu,Tao Yu
The high invasiveness and metastatic potential of breast cancer increase the risk of postoperative recurrence. To address this issue, a composite hydrogel drug delivery system based on sodium alginate (SA) has been developed for the in situ release of carbon monoxide (CO) at the tumor resection site. This system aims to enhance the effectiveness of chemotherapy and improve the clearance of residual tumor cells after surgery, thereby preventing tumor recurrence and metastasis. A gold nanoparticle-modified g-C 3 N 4 nanophotocatalyst (C 3 N 4 /Au) has been designed to convert CO 2 within the tumor into CO under visible light irradiation. The C 3 N 4 /Au is loaded into an SA hydrogel and applied to the postoperative incision in a spray form. The rapid crosslinking reaction between SA and Ca 2+ forms a network structure, enabling precise drug delivery. CO is generated in situ in the postoperative tumor tissue under light stimulation and is combined with folic acid (FA) modified doxorubicin (DOX) micelles (FA@DM) to achieve effective synergy between CO therapy and chemotherapy. The composite hydrogel drug delivery system not only increases the concentration of CO within the tumor and reduces systemic toxicity but also enhances the effectiveness of chemotherapy by increasing oxidative stress within tumor cells. It provides a new and safe strategy for efficient and precise postoperative tumor treatment, reducing the risk of tumor recurrence and metastasis.
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Ziyu Zhang,Yimin Zhou,Dongming He,Zhenglu Miao,Xutong Zhang,Zhimin Li
Octylphenol (OP) is a chemical compound that has found extensive industrial and agricultural production applications. However, its occasional exposure to water can pose significant risks to aquatic organisms. Therefore, developing a simple, cost-effective, and stable electrochemical monitor for OP to ensure environmental safety. Based on a novel nitrogen-doped hollow carbon bowl (N-HCB) as the electrical conductor, OP as the template molecule, and pyrrole (Py) as the functional monomer, the sandwich-structure molecularly imprinted polymer (N-HCB@PPy/MIP) nanocomposites were prepared. It incorporated the intercalated layer of N-HCB that provides a superior electrocatalytic substrate, the double-sided molecularly imprinted layer that generates highly specific surface imprinted cavities, and an electronic barrier of the non-imprinted PPy to external molecules. The sensors demonstrated a highly selective and ultrasensitive electrochemical response to OP, exhibiting a detection range of 0.5–200 μM with a limit of detection (LOD) of 0.07 μM, while showing good stability, reproducibility, and excellent selectivity to other interferences. Further test results indicate its suitability for the detection of OP in real environmental samples.
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MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Guoliang Zhang,Cong Xue,Ruxangul Jamal,Tursun Abdiryim,Feng Xu,Qian Cheng
L-Tyrosine (L-Tyr) is one of the 21 essential amino acids for the human body. Its accurate detection is of great clinical and practical significance in monitoring, food quality and safety. Functional groups critically govern electrochemical sensor performance by mediating target adsorption. Conventional poly (3,4-ethylenedioxythiophene) (PEDOT)-based sensors face limited flexibility and active site accessibility. Amino-grafted PEDOT was developed by in situ growth on Ti 3 C 2 T X nanosheets, incorporating small-sized Au nanoparticles to create a highly conductive and active substrate for selective detection of L-Tyr. The resulting molecularly imprinted electrochemical sensor, fabricated on the PEDOT-CH 2 NH 2 /Ti 3 C 2 T X /Au NPs/GCE platform, exhibited enhanced catalytic activity and efficient L-Tyr enrichment. The combination of components improved electron transfer, MIP stability, and imprinting cavity accessibility. The sensor demonstrated a broad linear range (10 −6 –100 μM) with an ultralow detection limit (3.64 × 10 −6 μM), and exhibited excellent selectivity, reproducibility, and operational stability. Practical tests in milk matrices confirmed high recovery rates (96.65 %–101.35 %), showcasing its potential for use in complex food systems and it also has detection capabilities similar to those of standard methods. This work provides a sensitive and reliable strategy for amino acid monitoring in food, with significant applications in food safety assurance.
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高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Zheng Chang,Qiqi Zhao
In this paper, using a strong coordination of the multi-amino groups of polyethylenimine (PEI)/SiO 2 nanoparticles with Cu 2+ and the weaker carboxyl-amine interactions with heme chloride (hemin), novel Cu 2+ -hemin dual-functionalized PEI/SiO 2 nanoparticles (abbreviated as Cu 2+ /hemin/PEI/SiO 2 NPs) were conveniently synthesized. The Cu 2+ /hemin/PEI/SiO 2 NPs exhibit both the peroxidase-like activity of hemin and the electrochemical signaling properties of Cu 2+ . Moreover, a large number of hemin molecules were successfully loaded onto Cu 2+ /PEI/SiO 2 NPs through electrostatic interactions. This not only prevented their self-aggregation-induced inactivation in aqueous solutions, but also catalytically amplified the electrooxidation signal of Cu 2+ /PEI/SiO 2 NPs by shortening the electron transfer distance. Subsequently, these nanoparticles spontaneously assembled on the overoxidized polypyrrole-modified reduced graphene oxide (abbreviated as OPPy/rGO) electrode surface through Cu N coordination between OPPy and Cu 2+ , and π-π stacking interactions between hemin and rGO. As a novel immunosensing platform, a label-free electrochemical immunosensor for carbohydrate antigen-125 (CA125), a specific biomarker for epithelial ovarian cancer was developed by covalently immobilizing CA125 capture antibodies onto the Cu 2+ /hemin/PEI/SiO 2 NPs@OPPy/rGO hybrid nanomaterials. Elevated serum CA125 levels correlate significantly with ovarian cancer progression. With the increasing concentration of CA125 antigen, the current responses of this immunosensor were decreased due to the formation of antigen-antibody insulating immune complexes. The proposed immunosensor exhibited excellent performances within a wide linear range from 5 × 10 −5 to 200 U·mL −1 for CA125 and a low detection limit of 1.2 × 10 −5 U·mL −1 (S/N = 3). Additionally, this immunosensor demonstrated good stability, reproducibility, and selectivity, making it a promising tool in clinical screening, early diagnosis, and prognostic monitoring of ovarian cancer.
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