JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 9
Di Wang,Qingbai Chen,Bingbing He,Huiqin Fan,Haoran Zhang,Ping Li,Jianyou Wang
The discharge of acidic wastewater containing high concentrations of heavy metal ions and inorganic acids poses severe environmental risks. Selectrodialysis (SED) based on monovalent-selective cation exchange membranes (MSCEMs) offers a promising approach to recovery acid from such streams. However, the performance of MSCEMs is limited by the fundamental selectivity-permeability trade-off. This report develops a novel composite MSCEM prepared by blending hydrogen manganese oxide (HMO) with proton transport channels with sulfonated poly (dimethyl phenylene oxide), followed by in situ self-polymerization to generate a positively charged surface layer. This enables a dual mechanism of size sieving and electrostatic repulsion that ensures high proton/divalent cation selectivity. The MSCEM developed in this work exhibits a high proton selectivity of 112.5 ± 3.0 in HCl/FeCl 2 mixture, which is approximately 19 times higher than that of the commercial MSCEM. Additionally, the HMO on the membrane surface guides the formation of a V-shaped polyaniline transport channels layer, enabling reduced proton transport resistance and contributing to a proton flux of 4.25 ± 0.2 mol m −2 h −1 . The prepared MSCEM also demonstrates universal H-permselectivity across various coexisting cation systems (Fe 2+ /Cu 2+ /Ni 2+ ) and anion systems (SO 4 2− /Cl − ). The novel MSCEM with composite structure exhibited superior proton conductivity and permselectivity, thus paving the way for efficient utilization of waste acid resources via SED.
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ChemNanoMat
·
2026
·Vol. 12
·期 1
·e202500720
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IF 2.6
Xinbing Jiang,Xingyu Jin,Zizhuo Nie,Wenyu Cheng,Yuxi Fei,Bo Peng,Yuhang Liu,Jiuhong Wang,Libo Zhao,Shujiang Ding
Room-temperature ammonia (NH 3 ) detection is crucial for environmental safety and human health. In this study, a ternary PANI@Au-TiO 2 ammonia-sensitive composite was synthesized via in situ polymerization of polyaniline (PANI) with simultaneous reduction of chloroauric acid to form Au nanoparticles, followed by ultrasonic compounding with TiO 2 nanoparticles. The structural and morphological characterization confirmed the uniform distribution of Au and TiO 2 nanoparticles in the PANI matrix. Gas sensing experiments demonstrated that the PANI@Au-TiO 2 sensor exhibited markedly enhanced NH 3 response, achieving a high sensitivity of 0.0527/ppm compared to PANI, PANI@Au, and PANI-TiO 2 counterparts. Moreover, the PANI@Au-TiO 2 ternary composite sensor displayed excellent linearity within the NH 3 concentration range of 3–30 ppm, along with a low detection limit, good repeatability, and high selectivity toward ammonia. The enhanced performance is attributed to the synergistic effects of the p–n heterojunction, Schottky junction, and catalytic activity of Au nanoparticles, which facilitate efficient charge transfer and amplify the interaction with NH 3 molecules. These findings demonstrate that the hybrid sensing film based on PANI@Au-TiO 2 ternary composites exhibits excellent ammonia detection performance at room temperature, thereby offering a promising pathway for the development of advanced ammonia sensors.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Dongshu Chen,Bai Wang,Tinghui Deng,Zhangpei Chen,Jiwei Wang,Jianshe Hu
To enhance the life safety of firefighters in high-temperature and high-humidity environments, flexible multimodal wearable sensors that can withstand harsh conditions and capture rich physiological information are urgently needed. Here, we report a non-invasive, firefighter-oriented sweat-sensing patch based on a hydrophobic deep eutectic solvent (DES) eutectogel (Deep eutectic solvent–Ethylene glycol phenyl ether acrylate– N , N -dimethylacrylamide) that integrates strain sensing, multiplexed sweat analysis and plantar-pressure recognition. The eutectogel is formed by in situ photopolymerization of soft and hard monomers in a methyltrioctylammonium chloride/ethyl nipagin (TOMAC/EP) DES, yielding a transparent, self-adhesive and rapidly self-healing network with excellent mechanical robustness (fracture strain ≈ 740% and fracture stress ≈ 0.6 MPa). Owing to its continuous ionic pathways and dynamically cross-linked network, the strain sensor exhibits a high gauge factor of 3.55 at 70–100% strain and maintains highly stable responses over 200 cycles at 60 °C and 80% relative humidity, outperforming representative hydrogel and ionogel strain sensors in the literature. The hydrophobic DES matrix endows the eutectogel with minimal swelling and long-term stability, enabling reliable electrochemical detection of four key sweat biomarkers—pH, uric acid, tyrosine and ascorbic acid—with wide linear ranges and low limits of detection. Furthermore, by combining a 10-region plantar pressure array with an artificial neural network classifier, the wearable system recognizes ten typical firefighting motions and discriminates different individuals with an overall accuracy of 95.7%. These results demonstrate that DES-based eutectogels provide a powerful platform for robust wearable electronics and offer substantial potential for firefighter health monitoring and emergency-rescue applications.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 2.8
Gan Peng,Yizhong Yuan,Xiaohui Tian,Jinyu Sun,Huimei Yu,Chunhua Cai
Flexible strain sensors, as crucial components of smart wearable devices, have garnered significant attention in fields such as human health monitoring. However, developing flexible strain sensors with high strength, sensitivity, extensibility, and long-term stability remains a challenge. In this study, a straightforward method was successfully developed for fabricating a cross-linked, conductive flexible strain sensor based on polyaniline/3-aminobenzenesulfonic acid-epoxidized natural rubber (PANI/3-ABSA-ENR) with a cross-linked structure. This was achieved by grafting 3-aminobenzenesulfonic acid (3-ABSA) onto epoxidized natural rubber (ENR) nanospheres, followed by in situ polymerization of aniline (ANI) onto the rubber nanospheres to form an effective cross-linked structure. At a PANI content of 13 wt% (PANI/ENR), the conductive flexible strain sensor exhibits outstanding comprehensive performance. Consequently, this strain sensor demonstrates ultra-high tensile strength (approximately 10 MPa), a wide strain range (approximately 1200%), and long-term reliability (2500 cycles at 50% strain). Simultaneously, the PANI/3-ABSA-ENR strain sensor exhibits a high gauge factor (GF = 21.6) and short response time (230 ms). Furthermore, this strain sensor can detect and capture both subtle and large-amplitude human motion signals, such as those from limb joints, cheeks, and mouth. This demonstrates the PANI/3-ABSA-ENR strain sensor's broad application potential in smart wearable devices.
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BIORESOURCE TECHNOLOGY
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2026
·
IF 9
Yan Xia,Shengwen Huang,Wentao Li,Ren-Cun Jin
Nitroaromatic compounds, widely used in the pharmaceutical, dye, and pesticide industries, often coexist with high-strength ammonium in industrial effluents, posing a dual stress on biological nitrogen removal systems. Anaerobic ammonium oxidation (anammox) represents a promising technology due to its high efficiency, low energy consumption, and minimal sludge yield. However, the acute response mechanism of anammox granular sludge (AnGS) to nitroaromatic compounds remains poorly understood. This study systematically investigated the acute effects of nitrobenzene (NB) and its reduction product aniline (AN) on AnGS by integrating nitrogen removal performance, extracellular polymeric substances (EPS) characterization, microbial community evolution, and functional gene prediction. Results demonstrated a concentration-dependent inhibition of anammox activity, with specific anammox activity (SAA) decreasing by 57.91 ± 2.44 % and 25.06 ± 1.38 % at 10 mg L −1 of NB and AN, respectively, and nearly complete suppression at 50 mg L −1 . NB exhibited stronger toxicity than AN, consistent with greater shifts in EPS composition, surface hydrophilicity, and microbial community structure. Molecular docking revealed that NB exhibited a stronger disruptive potential due to its superior affinity and specific interactions with active-site residues. High-throughput sequencing revealed severe inhibition of anammox bacteria like Candidatus_Brocadia , while fermentative genera like Acetoanaerobium were significantly enriched, indicating a functional trade-off under stress. Functional gene analysis further confirmed the downregulation of key anammox genes ( hzs , hdh ). These findings highlight the compound-specific toxicity mechanisms and the resilience of microbial communities through metabolic plasticity, providing new insights into the ecological risks of nitroaromatics in anammox systems.
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JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2026
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IF 4.6
Zhitan Huang,Tao Liu,Jiaqi Geng,Siyue Zhang,Neha,Miantai Ye,Wei Sun
Kanamycin (KANA), a broad-spectrum antibiotic, is a potential threat to the human health and environment. Therefore, it is of great significance to establish a highly sensitive and selective detection method for KANA. A novel molecularly imprinted polymers (MIPs) electrochemical sensor based on Au nanoparticles (AuNPs), nitrogen-doped graphene (NG) and MXene nanocomposite modified glassy carbon electrode (MIPs/AuNPs-MXene-NG/GCE) was developed for KANA analysis in this paper. The physicochemical performances of the nanocomposite were characterized using various techniques including SEM, TEM, XRD, XPS and electrochemsitry. The results showed that the decoration of AuNPs on MXene enhanced the conductivity and electrochemical response, the presence of MXene and NG increased the specific surface area and active sites, and the synergistic effects were favorable to the electrode performances. Under the optimal conditions, MIPs/AuNPs-MXene-NG/GCE was applied to KANA detection using differential pulse voltammetry (DPV), which achieved a wide detection range from 0.1 nmol/L to 1.0 mmol/L with a low detection limit of 0.033 nmol/L (S/N = 3). Moreover, the sensor shows excellent stability, selectivity and reproducibility, and successfully applied to the detection of KANA content in different types of milk samples with satisfactory results. The recovery was ranged from 86.0% to 113.0% with the relative standard deviation less than 4.06%. Therefore, the developed sensor provides a new idea for the efficient analysis of KANA in food samples.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.6
Xiaolei Shi,Zhuannian Liu,Yifei Wang,Benlong Wei
The K-CP/MnO 2 composite was prepared by loading manganese dioxide (MnO 2 ) nanosheets onto potassium hydroxide (KOH) activated carbonized polyaniline (K-CP) via low-temperature hydrothermal reaction. The composite demonstrated high efficiency in removing Pb 2+ and Zn 2+ in the hybrid capacitive deionization (HCDI) technology. K-CP/MnO 2 presents a core-shell structure with conductive K-CP as the core and electrochemically active MnO 2 constructed by porous nanosheets as the shell. The disordered entanglement of K-CP and MnO 2 nanoflakes significantly increases the interlayer spacing, optimizes the pore distribution, creates favorable conditions for charge and ion transport, and realizes the synergistic effect of electric double layer (EDL) adsorption and Faradaic reactions. The specific capacitance (SC) of K-CP/MnO 2 at 5 mV s −1 is 112.03 F g −1 , which is nearly 3.76 times that of CP (29.82 F g −1 ). At a voltage of 1.2 V (100 mg L −1 ), the electrosorption capacity (SAC) of the K-CP/MnO 2 electrode for Pb 2+ and Zn 2+ is 124.66 and 96.86 mg g −1 , respectively. After 15 adsorption/desorption cycles in the HCDI device, the adsorption capacity for Pb 2+ and Zn 2+ is retained at 86.81% and 82.59%, respectively. The experiments indicate that the removal of Pb 2+ primarily occurs through electrosorption, redox reactions, and surface complexation, while Zn 2+ is inserted into the channel provided by MnO 2 and participates in the solid phase reaction. The K-CP/MnO 2 composite prepared in this study offers a novel approach for designing high-performance HCDI electrodes and achieving the selective removal of heavy metals.
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Materials Today Communications
·
2026
·
IF 4.5
Kun Wang,Dongdong Deng,Yuxiang Nie,Chao Liu,Hongxiao Yu,Tongxu Cui,Binbin Yao,Bingqi Xia
Biomass-derived carbonized cicada wings (CCWs) exhibit unique microstructures and demonstrate promise as lightweight microwave-absorbing materials. However, their practical application is hindered by inherently inadequate dielectric loss capabilities and poor impedance matching. To address this limitation, ternary CCWs/Reduced graphene oxide aerogels (rGOAs)/polyaniline (PANI) composites were fabricated through mechanical grinding of CCWs with rGOAs and PANI particles. The synergistic integration of rGOAs and PANI significantly enhanced the dielectric loss capacity and optimized impedance matching behavior, substantially improving electromagnetic wave attenuation performance. The minimum reflection loss ( RL min ) of −61.36 dB at 1.8 mm, and an effective absorption bandwidth ( RL ≤ −10 dB) of 5.2 GHz (12.8–18 GHz). This study reveals the significant potential of (CCWs/rGOAs):PANI composites as promising candidates for lightweight, high-performance microwave-absorbing materials.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Yudong Song,Yang Zou,Xinjian Shi,Shengyan Yin,Song Liang,Zhenning Liu,Qinrong He,Hang Sun
In research on pressure-sensitive electronic skin (e-skin) for motion and physiological signal monitoring, balancing sensitivity with a broad pressure-sensing range and intelligent sensing capabilities is of critical importance. Inspired by the micro-ridge of human skin, this work integrates a bionic micro-ridge structure with a PANI-based resistivity modulation strategy to develop an e-skin that enables both high sensitivity and a wide pressure-sensing range for motion and physiological signals monitoring. Ridge-structured PANI was grown in-situ on hydrolyzed polyacrylonitrile fibers via chemical oxidative polymerization. By utilizing the reversible protonation-deprotonation mechanism of PANI in combination with a pH modulation strategy, we adjusted the resistivity of the PANI nanofibrous films to investigate the impact on sensing performance. The synergistic effects of ridge-structured PANI, resistivity modulation and micro-deformation effect of the nanofibrous films enabled the e-skin to exhibit a high sensitivity (maximum 1.91 kPa −1 ) and a wide pressure-sensing range (1–600 kPa). The e-skin can accurately and stably monitor a wide range of signals, ranging from subtle throat vibrations during phonation and gentle abdominal undulations caused by breathing, to larger plantar pressure changes during walking or running. Furthermore, we combined the e-skin with a one-dimensional convolutional neural network (1D CNN, PyTorch-based), enabling rapid and accurate classification of four typical respiratory states (Normal breathing, Rapid breathing, Deep breathing, and Apnea). This work, especially the combination of bionic micro-nano structures and resistivity modulation strategy, provides new insights for the development of pressure-sensitive e-skins with excellent sensing performance.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Qingye Liu,Xiaohui Wang,Wenbo Xu,Xuan Ning,Yu Yang,Peng Li,Yanling Hu,Xiaojun Li,Qingqing Li
The conductive hydrogels have emerged as the promising bioelectronics in various applications. To address the persistent challenge of reconciling extreme mechanical robustness with outstanding electrical properties during the long-term use, we propose a synergistic strategy to develop a strong and highly conductive hydrogel with hierarchical network through sequential Dimethyl sulfoxide (DMSO) crystal-templating, solvent replacement, multi-amine-mediated crystal reorganization and co -polymerization. Taking the merits of the aligned microstructure, adaptive non-covalent interactions, and the re-organized Poly(vinyl alcohol) (PVA) crystalline domains, the resultant hydrogel could effectively dissipate the impact energy, demonstrating excellent tensile strength as high as 4.26 MPa with a satisfactory fracture strain of 206%. Besides, this reliable conductive hydrogel displays a tissue-like self-strengthening behavior upon cyclic mechanical training, where the respective tensile strength and strain could be further increased up to 8.5 MPa and 221%. Notably, the conductive particles could be firmly immobilized into the outer layer of hydrogel via in-situ co -polymerization between the multi-amine molecules (i.e., 2,4,6-Triaminopyrimidine) and aniline monomers. Due to the existence of anisotropic transport channels, the ductile hydrogel possesses high electrical conductivity up to 13 S⸱m −1 , and exhibits consistent sensitivity to external strains. The high-performances make the hydrogel as an efficient electronic device for real-time motion sensing.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.7
Xia Sun,Liying Wang,Yang Gao,Xuesong Li,Xijia Yang,Wei Lü
Energy storage devices fulfill an indispensable and critical role in balancing the supply and demand of energy, reducing the consumption of fossil fuels, and mitigating environmental pollution. In this work, an iron-ion hybrid supercapacitor (IIHS) is developed，which employs a nano-honeycomb structured CoMoS3-PANI composite as the cathode. CoMoS 3 improves the redox active sites for its electrochemical reactions, which helps to prevent the self-stacking of ion transfer channels. The introduction of PANI creates a pillar-supported hierarchical structure for CoMoS 3 growth, which enhances Fe 2+ ion transport kinetics and cycling stability. Benefiting from this advanced electrode architecture, the assembled alternating current (AC)-based supercapacitor delivers a high areal capacitance of 3065.2 mF cm −2 at a current density of 1 mA cm −2 (voltage window: 0–1.2 V). Furthermore, the device exhibits outstanding long-term cycling stability, maintaining 88.19% of its initial capacitance after 10,000 galvanostatic charge–discharge cycles. Meanwhile, we fabricated poly (vinyl alcohol) / carboxymethyl cellulose Fe 2+ gel electrolyte, and the flexible device maintained 84.28% capacity after 3000 cycles. This cost-effective, long-lasting, and safe iron ion hybrid capacitor holds significant promise for future applications in the energy storage sector.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Siqi Hong,Baoxi Fan,Zheng Wu,Xiaoyue Cheng,He Gao,Yanmin Jia,Cheng Liu,Luohong Zhang
Piezoelectric catalysis has emerged as a sustainable technology for pollutant degradation, with barium titanate (BTO) serving as a prominent lead-free piezoelectric material. However, its practical application remains constrained by limited degradation efficiency. To address these challenges, polyaniline-incorporated BTO nanocomposites (BTO@PANI) were synthesized via in-situ polymerization to enhance piezoelectric polarization and catalytic performance. The composites were evaluated for degrading dyes and pharmaceuticals under both ultrasonic and aeration-driven conditions, with systematic investigation of influencing factors including pH, catalyst dosage, aeration rate, and bubble size. The optimized BTO@PANI 0.2 composite exhibited exceptional catalytic activity, achieving a 57 % enhancement in degradation efficiency and a reaction rate constant (k = 0.0218 min⁻¹) 15.7 times greater than pure BTO under ultrasonic excitation. The aeration-driven process used only 23.3 % of the energy that ultrasonication did, which is very impressive. The composite maintained excellent stability through four consecutive degradation cycles under both excitation modes. The catalytic mechanism was systematically investigated through radical trapping experiments, electron paramagnetic resonance (EPR) analysis, and comprehensive material characterization (XRD, SEM, FTIR, XPS, EIS). This work provides new idea for designing efficient piezoelectric catalysts and demonstrates a promising energy-saving strategy for advanced oxidation processes in water treatment.
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