JOURNAL OF MATERIALS SCIENCE
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2026
·Vol. 61
·期 35
·26088-26113
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IF 4.4
Li Jingmei,Pang Zibo,Qi Junxiao,Lu Jiamin
In this study, CuTCPP was loaded onto the surface of g-C 3 N 4 through a simple organic reaction to prepare a series of g-C 3 N 4 -CuTCPP (CNTP) photocatalytic composite materials. The material was characterized using XRD, SEM, EDS, and other methods to analyze its physicochemical properties. The biological safety of materials was evaluated through in vitro cytotoxicity experiments. Using E. coli , S. aureus , P. aeruginosa , B. subtilis , and C. albicans as model microorganisms, the broad-spectrum antibacterial performance of composite materials was tested under visible light to investigate the effects of concentration gradient and light exposure time on sterilization efficiency. The antibacterial mechanism was further revealed through reactive oxygen species fluorescence detection, free radical scavenging experiments, and evaluation of cell membrane damage. In addition, livestock and poultry wastewater was used as actual water samples to verify the practical application potential of the materials. Graphical abstract
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Defan Wang,Yi Zhao,Xinxin Zhao,Chengfu Han,Kangkang Zhou,Yajie Zhang,Wei Zhai,Guoqiang Zheng,Jianwei Xu,Kun Dai,Chuntai Liu,Changyu Shen
PRPP integrates strain and humidity sensing functions on a single unified sensing platform. • Its distinctive porous structure endows PRPP with a broad strain range (0–80%) and low energy loss coefficient of 0.13. • PRPP shows excellent humidity-sensing performance and can serve for real-time human respiration monitoring. • The integration of humidity/pressure dual-mode PRPP sensor creates a broader platform for its application. Flexible pressure sensors with porous architectures have attracted extensive attention owing to their excellent stability and sensing performance, demonstrating great potential in applications such as electronic skin and healthcare monitoring. However, most existing sensors are often limited to single-modal signal transduction, and achieving synergistic multifunctionality within a unified signal platform remains a significant challenge. Humidity, as an essential environmental and physiological parameter, plays a vital role in enabling advanced interactive perception. Therefore, integrating high-performance humidity sensing with flexible pressure sensing has emerged as an important research direction. Herein, a polydimethylsiloxane (PDMS) composite foam (PRPP) modified with polypyrrole (PPy), reduced graphene oxide (rGO), and polydopamine (PDA) was fabricated through sequential in-situ polymerization combined with ultrasonication. The PRPP exhibits excellent mechanical resilience (1% plastic deformation after 500 compressions, 0.13 energy loss coefficient at 80% strain), rapid response/recovery time (80 ms/100 ms) and a low detection limit (0.1% strain). Benefiting from the in-situ growth of PPy, PRPP also shows remarkable humidity sensitivity, enabling real-time environmental monitoring. Furthermore, a dual-mode human-machine interface based on a PRPP array is developed for contact pressure sensing and non-contact humidity perception, providing a strategy for flexible sensors in intelligent interactive systems. A multifunctional flexible sensor is designed and fabricated. The flexible sensor simultaneously integrates strain sensing performance and humidity sensing performance within a unified platform via a rational functional integration strategy. The construction of multi-modal HMI interface realizes both contact and non-contact sensing. The integration of HMI interface and artificial intelligence algorithm provides excellent development prospects for the sensor in the fields of intelligent sensing, information transmission and human-computer interaction. Download: Download high-res image (139KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Wanwan Li,Chang Xu,Jinling Li,Ying Liu,Zhizhou Chen,Hongchen Liu,Yunlei Yin,Wei Zhai,Kangkang Zhou,Kun Dai
Hydrogels have emerged as an ideal platform for wearable sensors due to their exceptional biocompatibility and flexibility, enabling seamless integration into multifunctional daily applications. Nevertheless, concurrently achieving hydrogels-based sensors with robust adhesion, efficient self-healing, high sensitivity, and broad strain detection range via a straightforward fabrication methodology remains a significant challenge. Here, we present a highly stretchable, adhesive and self-healing conductive Polyvinyl alcohol-Borax-Polypyrrole (PVA-B-PPy, PBP) hydrogel through in-situ polymerization and freeze-thaw treatment. The multi-synergistic dynamic interaction of reversible borate ester bonds, extensive hydrogen bonding and physically crosslinked PVA microcrystalline domains endows PBP hydrogel exceptional mechanical properties, tissue-mimetic softness, robust adhesion and autonomous self-healing (97.4 % mechanical efficiency, instantaneous electrical recovery). The PBP hydrogel-based strain sensor with a high sensitivity (GF = 2.48) and an extensive monitoring range (360 % strain) is capable to accurately and timely monitor various human movements. Furthermore, the PBP hydrogel enables long-term electrophysiological monitoring via skin-adhesive bioelectrodes and serves as human-machine interfaces through flexible pressure-sensor arrays and hydrogel touchscreen pens for smartphone operation. This research provides a promising strategy for designing hydrogels with tailored functionalities for wearable electronics that satisfy diverse requirements of practical applications in personalized healthcare monitoring, soft robotics, and interactive devices.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Stennard Leetroy George,Linkai Zhao,Ziyi Wang,Lei Feng,Zhaoli Xue,Long Zhao
Two asymmetric porphyrins, FePor-Th and FePor-ThCA , were synthesized to investigate the effect of proton management on electrocatalytic oxygen reduction reaction (ORR) performance. Introducing a carboxylic acid group in FePor-ThCA does not alter the energy band gap (2.78 eV) as compared to FePor-Th , confirmed by the density functional theory (DFT) calculations. Carbon nanotubes were used as the support materials to construct composites, and both electrocatalysts demonstrated a preference for the four-electron route under alkali conditions, as revealed by a series of electrochemical evaluations. FePor-ThCA/CNT exhibited an onset potential of 0.86 V vs. RHE, a half-wave potential of 0.68 V vs.RHE, and a current density of 5.22 mA cm –2 , surpassing its counterpart. It is proposed that the carboxylic acid group may facilitate proton transfer, along with electron transfer, at the FePor-ThCA/CNT interface, thereby reducing the charge transfer resistance and enhancing ORR activity.
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JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2025
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IF 8.4
Quan Yuan,Yiran Hu,Qin Zhu,Chunmei Wang,Xiaomin Dou,Jun Liu
Water resource shortage and water pollution are global challenges. Simultaneously obtaining clean water and mitigating pollutants from harsh water sources are continuously pursued in research community and industry sector. In this work, a TiO 2 /g-C 3 N 4 /PPy@MS (TGP@MS) composite was fabricated to harvest water and mitigate tylosin from wastewater concurrently through a coupled process of solar-driven evaporation and photocatalysis. The composite presents exceptional hydrophilicity, broad-spectrum light absorption, and superior catalytic activity. Incorporating polysized phenylamine onto TiO 2 /g-C 3 N 4 enhanced infrared light absorption, extending the light absorption across the full solar spectrum range of 300–1200 nm and ultimately achieving an absorption rate of 91.6 % within this range. The 3D porous structure and the hydrophilic nature of the hydrogel sponge facilitated the capillary-driven water transport to surfaces. Under one sun condition, an evaporation rate of 1.49 kg/(m 2 ·h) and a photothermal conversion efficiency of 89.4 % were achieved for TGP@MS. Active species including ·OH and 1 O 2 were generated from the TiO 2 /g-C 3 N 4 components, degrading 90 % of tylosin within 150 min. Due to the versatile purification capabilities, TGP@MS could treat a wide range of water samples, enabling simultaneous water recovery and pollutant removal. Therefore, this work demonstrates significant potential in addressing the water crisis in underdeveloped areas. It achieves this by simultaneously producing clean water and mitigating pollutants from low-quality water sources, using green and sustainable solar energy.
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DIAMOND AND RELATED MATERIALS
·
2025
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IF 5.1
Xiangjun Li,Yuxin Shi,Miaomiao Li,Shengwei Deng,Yinxia Dong,Libo Tong,Zhongze Du,Kuaishe Wang
The exceptional protection of epoxy resin (EP) is restricted in practical applications due to high electrical insulation and inherent microporous defects. In this study, acid-doped polypyrrole (f-PPy)/MXene hybrid nanomaterials incorporated into the EP matrix to construct three-dimensional (3D) conductive network that simultaneously enhances corrosion resistance and imparts antistatic capability. Electrochemical impedance measurements demonstrate a long-term stability, maintaining 9.73 × 10 10 Ω cm 2 even after 14 days of immersion, which is significantly higher than the EP coatings. Compared with pure EP, the composite SiO 2 @f-PPy/MXene/EP coating shows a 3 times reduction in surface resistivity (8.68 × 10 7 Ω m) and exceeds the industrial antistatic threshold by two orders of magnitude. The enhanced anticorrosion is attributed to the synergistic contribution of the triple properties of the SiO 2 @f-PPy/MXene: “labyrinth effect”, redox effect and corrosion inhibition. SiO 2 @f-PPy/MXene 3D conductive network enhances the antistatic ability of EP. This dual-functional strategy addresses the critical gap of combining anticorrosion and antistatic performance in EP coatings and offers a practical route for protective applications on Mg alloys.
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DESALINATION
·
2025
·
IF 9.8
Luyang Hu,Junjie Liao,Haoran Wang,Xiaonan Wu,Zhe Yang,Yumin Zhang
Solar-driven interfacial evaporation offers a promising pathway for seawater desalination and wastewater treatment. However, the practical implementation of advanced evaporators faces challenges in heat localization and water transport. Here, we report a leaf-inspired membrane (LIM) that integrates hierarchical structural design with multifunctional materials engineering to enable high-efficiency solar evaporation. The LIM adopts a Janus architecture and mimics the vein networks and porous microstructure of natural leaves. This design presents 94.9 % solar absorption and reduces water evaporation enthalpy by 42.4 %. Under a unidirectional flow and suspension mode, the evaporator achieves an evaporation rate of 2.86 kg m −2 h −1 for pure water and 2.48 kg m −2 h −1 for 20 wt% brine under 1-sun irradiation. Shaping the membrane into a 3D sinusoidal configuration and introducing bidirectional fluid transport enhances thermal energy recycling, boosting the rate of pure water to 3.10 kg m −2 h −1 . The asymmetric Janus structure spatially separates the processes of evaporation and salt crystallization, enabling continuous freshwater production alongside salt recovery—thus supporting zero liquid discharge. Outdoor field trial confirms that the 3D-structured evaporator operates reliably under natural sunlight (0.35–0.82 kW m −2 ), yielding 13.91 kg m −2 of water vapor and 0.48 kg m −2 of salt over an 8-hour period, while reducing ion concentrations by 3–4 orders of magnitude. Beyond desalination, the LIM also demonstrates versatile purification capabilities for diverse wastewater, including dye-laden effluents, emulsions, suspensions, and corrosive solutions. This biomimetic design bridges material engineering with fluidic control, offering a scalable strategy for sustainable water-energy solutions.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaoyang Zhang,Xuefei Zhang,Hai-Tao Ren,Ting-Ting Li,Ching-Wen Lou
Hydrovoltaic have attracted considerable attention for their unique advantages such as simplicity of power generation, abundance of sources and greenness. However, current hydrovoltaic energy harvesting technologies face significant challenges, including low power density and low efficiency, which make them difficult to utilize in practical applications. Hence, inspired by the structure of green rhizome, a new heterogeneous curved microstructure of flexible cotton fabric generator (PMCPG) was developed by treating plain cotton fabrics by alkaline washing and “Transplanting” them with Ti 3 C 2 T X MXene and polypyrrole (PPy). Utilizing the capillary core suction effect to achieve rapid pumping of water, the highly breathable nonwoven encapsulated PMCPG has a multi-channel water transport channel similar to the green rhizome, and its outer irregular “Breathing” porous structure can achieve efficient water capture. This PMCPG can successfully drive low-power electronics after being able to output a peak current of >2 mA, producing a high voltage of ~0.6 V and an energy output of ~150 μW, with a sensitive ion sensing (894.5 μA M −1 ) capability of this generator to monitor human physiological signals. This biomimetic hydrovoltaic generator device also provides an interesting potential platform for realizing self-powered wearable and sweat analysis, contributing to the development of diversified structural designs and performances of flexible wearable wet-electric self-powered devices.
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Journal of Water Process Engineering
·
2025
·
IF 6.7
Yuliang Zhang,Xinhao Yan,Ting Shu,Xiahui Liu,Yanhua Lei,Yuwen Huang,Tao Liu,Xiaobo Chen
The global freshwater shortage underscores the urgent need for efficient and sustainable desalination technologies. Solar-driven evaporation offers a promising solution due to its low energy demand and environmental compatibility, with photothermal materials and evaporator design being key to enhancing performance. In this study, chitosan-based aerogels have been used as the substrate, and a vertical channel structure has been prepared through unidirectional freezing technology in fabricating PPy@GO-CG (polypyrrole@graphene oxide-chitosan) aerogel evaporators. Experimental results have showed that under 1 kW·m −2 simulated solar light, the water evaporation rate can reach 3.79 kg·m −2 ·h −1 , and the solar steam conversion efficiency is as high as 96.16 %. In saline conditions, salt accumulation was not observed until after 60 h of continuous irradiation, indicating strong salt-rejection capability. The evaporator exhibits excellent long-term stability, salt resistance, and inherent antibacterial properties, ensuring both efficiency and reliability for practical use. This work thus offers a promising strategy for solar-driven seawater desalination and thermal energy conversion.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zhichao Li,Yuzhen Zhang,Gaoshuang Zuo,Peihua Zhao,Chao Wang,Yanzhong Wang
Layered double hydroxides (LDHs) have garnered broader attention as electrocatalytic materials due to their low cost, structural tunability, and high specific surface area. However, the intrinsic low activity and poor electrical conductivity of LDHs pose challenges that hinder their further application in the field of electrocatalysis. Herein, we synthesized nickel‑iron layered double hydroxide @polypyrrole (NiFe-LDH@PPy) composite electrocatalyst through a one-step method with Fe 3+ ions eroding Ni foam to form NiFe-LDH and simultaneously as catalyst to synthesis PPy at room temperature. The NiFe-LDH@PPy composite achieves low overpotentials of 236 mV for the oxygen evolution reaction (OER) and 95 mV for the hydrogen evolution reaction (HER) at a current density of 10 mA cm −2 . Notably, the constructed water electrolysis cell with NiFe-LDH@PPy as cathode and anode only requires a water electrolysis voltage of 1.57 V at 10 mA cm −2 . The excellent water-splitting performance is attributed to the high electronegativity of nitrogen in PPy and its superior conductivity.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yaoyao Wang,Wei Li,Shengchao Yang,Zhiyong Liu,Guihua Meng,Jianning Wu,Jiayu Yan
Interfacial solar evaporation represents a promising strategy to address global water scarcity. However, designing evaporators capable of maintaining optimal surface wettability to minimize heat loss while achieving high-efficiency clean water production remains a critical challenge. Here, we design a temperature-responsive hydrogel evaporator based on N-isopropylacrylamide (NIPAm), with a Lower Critical Solution Temperature (LCST), acrylamide (Am), and in situ polymerized polypyrrole (Ppy). The evaporator dynamically regulates water distribution via hydrophilic-lower hydrophilicity transition: the sunlight-exposed region becomes lower hydrophilicity (>LCST) to reduce heat loss, while the submerged region stays hydrophilic (
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Keao Liu,Zhifeng Han,Yajing Sun,Chunhui Wang,Yang Xu
Convenient detection assays are pressing need for assessing of microplastics (MPs) distribution in environmental samples. However, the promotion of MPs detection toward daily application is limited by complex pretreatment and instruments. This study describes a low cost detection assay for quantification of polyethylene (PE) MPs within 7 min without requiring large-scale instruments. A sulfur-doped carbon nanoparticle encapsulated with polypyrrole (S-CNPs/PPy) was prepared to fabricate modified conducting glass slices (MCGs) through a drip coating process. Both fluorescence and resistance signals were enhanced by the addition of PE MPs. The enhancement of fluorescence intensity was attributed to the surface environment of S-CNPs/PPy changed through interaction between S-CNPs/PPy and PE MPs, meanwhile the low conductivity of PE MPs increased the electrical resistance. The use of smartphone and multimeter are convenience for daily sensing. The fluorescence/electrical resistance bimodal sensing performances were evaluated using various amounts of PE MPs and applied in river and sea samples. The combination of fluorescence and electrical resistance signals provides a simple and individual way compared with instrument analysis of PE MPs, and holds potential to achieve monitoring of PE MPs in complex scene.
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