Journal of Water Process Engineering
·
2025
·
IF 6.7
Qingqing Wang,Wenqin Zhong,Jian Du,Jinwen Hu,Chenglong Fu,Jie Lu,Yanna Lv,Haisong Wang,Yehan Tao
This study presents a novel cellulose-based composite electrode material, CMC/PEI/Co/PANI, designed for efficient electrochemical adsorption and in-situ detection of polystyrene nanoplastics. The material integrates a three-dimensional (3D) carboxymethyl cellulose/polyethyleneimine (CMC/PEI) network with two-dimensional (2D) cobalt hydroxide nanoplates and a polystyrene (PANI) conductive layer, addressing the limitations of poor conductivity and water solubility in pure CMC. Electrochemical adsorption experiments show that the composite achieves a removal rate of 77.91 % for 10 mg/L polystyrene nanoparticles within 3 h at 1.0 V, outperforming many reported materials. Meanwhile, electrochemical detection via cyclic voltammetry (CV) and differential pulse voltammetry (DPV) exhibits high sensitivity, achieving a detection sensitivity of 0.2866 μA/ppb·cm 2 , a correlation coefficient of 0.9917, and a detection limit of 0.63 ppb. Theoretical calculations reveal that the adsorption mechanism involves synergistic effects of electrostatic attraction, van der Waals forces, hydrogen bonding, π-π stacking, and hydrophobic interactions. These findings underscored the potential of CMC/PEI/Co/PANI composite in the removal and detection of nanoplastic contaminants within the context of environmental pollution management, offering a novel approach for controlling and mitigating nanoplastic contamination in the future.
研究领域:
环境科学
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材料科学
·
电化学
·
纳米技术
·
高分子科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yong Wang,Zelin Bai,Wanzhihan Zhang,Hang Li,Ling Li,Youwei Zhao,Haijiao Lin,Chuan Fang,Wenming Zhang
Self-powered wearable electronic devices have developed rapidly in the wearable field by integrating multi-functional sensing and energy storage functions at the same time. However, the integration of the system and the uniformity of materials still restrict the wide application of devices. In this study, a multifunctional PANI@NH 4 V 4 O 10 @CC composite material with a hierarchical microstructure was successfully synthesized, simultaneously fulfilling the demands for both sensing and energy storage. For energy storage application, the assembled asymmetric supercapacitor achieves an areal capacitance of 617 mF cm −2 and a power density of 0.514 W cm −2 . Regarding sensing, due to hierarchical microstructure and, the fabricated sensor exhibits ultra-high sensitivity (6.1×10 4 kPa −1 ) over a wide pressure range (0–200,000 Pa), ultra-fast response/recovery kinetics (90 ms), and minimal performance degradation after 12,000 pressure cycles. Additionally, the composite material demonstrates photoelectric conversion capabilities, displaying a linear response with illumination intensity ranging from 10 to 100 mW cm −2 . By the synergistic integration of pressure sensing and supercapacitor functionalities, high-precision gesture recognition systems (recognition accuracy of 95.45 %) and high-resolution spatial pressure mapping applications are enabled. This approach provides a multifunctional material platform for next-generation self-powered wearable electronics and facilitates progress in the advancement of wearable smart devices.
研究领域:
材料科学
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可穿戴电子学
·
能量存储
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传感器与传感技术
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纳米技术
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Laizhao Guo,Wentao Huang,Jie Xia,Guangfen Wei,Mai Thi Tuyet Nga,Xiaoshuan Zhang
Sea bream has gained widespread popularity for its succulent flesh and high nutritional value. However, inadequate control of packaging conditions during storage and transportation renders this high-protein fish particularly susceptible to spoilage. Therefore, this paper proposes a high-precision, flexible ammonia sensing system (FASS) with temperature decoupling for detecting fish freshness, so as to enhance food quality and safety. The FASS primarily comprises a flexible ammonia sensing unit, a temperature decoupling unit, back-end circuitry, and a power supply module. Utilizing processes such as magnetron sputtering and laser direct writing, the ammonia sensing unit and temperature decoupling unit were fabricated on a PET substrate and the PANI/MXene gas-sensitive materials were successfully prepared through PANI polymer modification. During gas-sensing response testing, the ammonia sensing unit exhibited a response/recovery time of 49/307 s for 10 ppm ammonia, with a sensitivity of 18.102 % ppm −1 within 2–10 ppm. With the combination of the temperature decoupling unit, a three-dimensional fitting surface was constructed for the gas response of the ammonia sensing unit, temperature, and ammonia concentration within the 0–30 °C range, achieving a goodness-of-fit of 0.99 and enabling precise ammonia concentration detection across a broad temperature and humidity range. Finally, the reliability of the FASS application was validated during fish meat storage. By integrating a Bi-LSTM model for temporal prediction of ammonia concentrations, an RMSE of merely 0.073 ppm was achieved.
研究领域:
传感器与仪器
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食品安全与质量监测
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纳米材料
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柔性电子学
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传感中的人工智能
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产品关联
DOI
高影响因子
Polymers
·
2020
·Vol. 12
·期 12
·2847
·
IF 3.426
Ming Zhu,Ruifeng Zhang,Gang Chen,Wenjun He,Yaowei Chen,Deng-Guang Yu,Xiaoyan Li
In this paper, CNTs@PANi nanocomposites were prepared by in-situ oxidation polymerization of aniline, and their structure, morphology and conductivity were characterized. A mixed solvent of toluene and tetrahydrofuran was used to prepare dispersions of CNTs@PANi and poly(styrene-ethylene-butylene-styrene) (SEBS) triblock copolymer, and bilayer composite film was prepared. According to the solvent phase separation and uneven evaporation flux, CNTs@PANi self-assembled into the interconnected coffee ring structure on the SEBS matrix. The prepared bilayer composite film had excellent stretchability, and the conductivity of the functional layer was close to that of CNTs@PANi, which could light up an LED lamp under 100% strain and restore the topological structure. Electrochemical tests showed that the bilayer film had obvious heterogeneity. The impedance characteristics of the CNTs@PANi functional layer and the SEBS matrix were analyzed, and its heterogeneous corrosion resistance mechanism further discussed.Keywords:self-assembling;coffee ring;CNTs;PANi;stretchable;SEBS triblock copolymer
研究领域:
材料科学
·
电子工程
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DOI
PubMed
高影响因子
Energy & Environmental Materials
·
2026
·
IF 13.8
Han Zhang,Mingyu Gao,Jiajia Deng,Yan Wang,Yingru Li,Xinjian Song,Rong Li,Jianfeng Tan
Traditional inorganic semiconductor gas sensors operate at elevated temperatures and exhibit inherent rigidity and brittleness, thereby limiting their application in wearable electronics. Herein, organic–inorganic YSZ@PANI/SnS 2 heterojunction composite nanofiber film are fabricated through a sequential process involving electrospinning, oxidative polymerization, and hydrothermal treatment. Benefited from the employment of PANI interfacial layer, biomimetic “branch-leaf” structure featuring vertically grown, network-like SnS 2 nanosheets, the stress and energy are dispersed and dissipate effectively, therefore enhance the mechanical flexibility. Simultaneously, the vertically staggered SnS 2 nanosheets accelerating the gas diffusion/transmission and providing abundant active sites. The formation of PANI/SnS 2 heterojunction, which endows the composite with elevated conductivity, reaction activity, and carrier transport separation efficiency. At room temperature (RT, 25 °C), the device exhibits high response value and response/recovery times of 9.35 and 12/25 s to 2 ppm NO 2 , respectively. Furthermore, the device maintains satisfactory responsiveness even under bending conditions. This research presents a promising novel approach for fabricating organic–inorganic composite nanofibers, which may contributes to the development of flexible RT gas sensors.
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高影响因子
JOURNAL OF PHYSICAL CHEMISTRY A
·
2020
·
IF 2.6
Lincheng Li,Yunlan Xu,Dengjie Zhong
Herein, we reported a simple solvothermal and chemical oxidation method to synthesize a magnetic core–shell composite (Fe3O4@UiO-66@PANI) for Cr(VI) removal from wastewater. Due to the porosity and stability of UiO-66 and stability, high acid resistance, and multiple active (reducing and chelating) groups of polyaniline (PANI), Fe3O4@UiO-66@PANI exhibited excellent efficiency, regeneration, and reusability performance for Cr(VI) removal. Its maximum adsorption capacity and removal rate were 474.42 mg·g–1 and 99.90%, respectively. The effects of initial pH values, contact time, and initial Cr(VI) concentration on Cr(VI) removal were investigated. The fitted data showed that the adsorption process was consistent with the pseudo-second-order kinetic model and Langmuir isothermal model. The study of the mechanism shows that the excellent efficiency of Fe3O4@UiO-66@PANI is due to the electrostatic adsorption and reduction of Cr(VI) and the chelation of Cr3+. The results demonstrate that Fe3O4@UiO-66@PANI is a promising adsorbent for the Cr(VI) removal.
研究领域:
环境科学
·
材料化学
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水处理
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纳米复合材料
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污染物去除
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DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2020
·
IF 3.085
Jiaoming Wang,Xiang Yu,Xionghui Fu,Yi Zhu,Yuanming Zhang
To solve severe photocorrosion of Ag 3 PO 4 , polyaniline for transporting holes and reduced graphene oxide (rGO) for transferring electrons were co-incorporated with Ag 3 PO 4 by an in-situ precipitation procedure and a following hydrothermal method , reaching the superior carrier separation efficiency via synergetic effect of PANI and rGO. Consequently, 5% rGO/Ag 3 PO 4 /PANI exhibited the excellent photocatalytic performance of 86.2% removal rate towards ciprofloxacin (CIP) within 15 min, which was much better than Ag 3 PO 4 , Ag 3 PO 4 /PANI and many reported photocatalysts . After four consecutive cycles, the composites performed better stability with 81.0% removal rate. Generally, photocatalytic activity depended on efficiencies of light absorption ( η abs ), charge separation ( η sep ) and charge injection ( η inj ). η sep of rGO/Ag 3 PO 4 /PANI was 11.5 and 8.70 folds higher than that of Ag 3 PO 4 and Ag 3 PO 4 /PANI, while η abs and η inj of rGO/Ag 3 PO 4 /PANI were not improved compared with Ag 3 PO 4 and Ag 3 PO 4 /PANI, strongly manifesting synergetic effect of PANI and rGO on Ag 3 PO 4 accelerated the charge separation and finally enhanced the photocatalytic activity . Besides, rGO greatly improved the adsorption efficiency for CIP and the maximum adsorption capacity was enhanced to be 19.4 mg/g which was 6.88 folds than that of Ag 3 PO 4 , being advantageous to enhancing the photocatalytic activity. The work offered an excellent reference for designing and constructing photocatalysts with superior charge separation showing excellent photocatalytic performance, which were potential candidates for degrading antibiotics in environmental treatment.
研究领域:
材料科学
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环境化学
·
光催化
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纳米材料
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环境污染治理
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半导体催化
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抗生素降解
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2011
·
IF 3.673
Song Zhao,Zhi Wang,Xin Wei,Xinxia Tian,Jixiao Wang,Shangbao Yang,Shichang Wang
Polysulfone (PSf) ultrafiltration (UF) membranes were prepared by non-solvent induced phase separation process using two kinds of additives, i.e., polyvinylpyrrolidone (PVP) as a representation of water soluble polymers and polyaniline (PANI) nanofibers as a representation of nanomaterials. The effects of PVP and PANI nanofibers on membrane formation mechanism, structure and performance were systematically investigated, compared and analyzed. The thermodynamic and rheologic properties of the casting solutions were studied through cloud point titration measurement and viscosity measurement. Variations of the casting film during preevaporation and after immersed into the coagulation bath were observed through mass variation measurement, optical microscopy measurement and light transmission measurement. Membrane structure was characterized by X-ray photoelectron spectroscopy, scanning electron microscope and contact angle measurement. Membrane performance was evaluated by pure water flux, protein rejection, antifouling property, additive stability and mechanical property. The results demonstrated that at the same additive content, PSf/PANI nanocomposite membranes had higher protein rejections, higher antifouling property, better additive stability and larger breaking strength than PSf/PVP membranes. The correlations among membrane formation mechanism, structure and performance were also discussed in detail.
研究领域:
材料科学
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膜技术
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高分子科学
·
分离过程
·
纳米材料
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DOI
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2020
·Vol. 306
·期 2
·2000581
·
IF 3.853
Yingying Feng,Yexiang Cui,Mingjun Zhang,Meiling Li,Haiyan Li
Tung oil is used as a catalyst-free repair agent. Tung oil-loaded polyurethane (PU) microcapsules are prepared by interfacial polymerization in a SiO 2 -stabilized Pickering emulsion system, polyaniline (PANI) is deposited in situ on the PU microcapsule surface, and tung oil-loaded PU/PANI double-layer shell microcapsules are obtained. Synthesized PU/PANI microcapsules showed the characteristic dark-green color of conductive PANI. The average particle size is 31.1 ± 8.1 µm and the core content is 45.1 ± 4.3 wt%. The microcapsules have a good thermal stability, and the chemical structure of the PU/PANI wall and tung oil core is confirmed by Fourier transform infrared analysis. Self-healing anti-corrosion coatings are prepared by adding 10 wt% microcapsules into epoxy resin. The corrosion resistance properties of the self-healing coating are evaluated by immersing scratched coatings in 10 wt% NaCl solution for 15 days. The self-healing coating with 10 wt% tung oil-loaded PU/PANI microcapsules have the best anti-corrosion property, and slight corrosion do not occur until 15 days after immersion in salt solution. The self-healing and anti-corrosion mechanism are revealed. The tung oil core and the PANI wall of microcapsules contributed synergistically to the excellent self-healing and anti-corrosion properties of the coating through the formation of self-healing films and passivation layers.
研究领域:
材料科学
·
化学工程
·
腐蚀科学
·
表面工程
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2012
·Vol. 159
·期 3
·A305
·
IF 2.59
Chang Su,Guoqiang Lu,Lihuang Xu,Cheng Zhang
In this work, the spindle-shaped LiFePO4 coating with carbon layer (C-LFP) was successfully synthesized in glycerol solvent assisted by a mild heat-treatment at 600°C for 2 h. Then camphorsulfonic acid doped polyaniline (PANI-CSA) as the conductive polymer was compound with C-LFP to prepare C-LFP/PANI-CSA composite. The morphology, crystal structure and charge-discharge performance of the prepared samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and galvanostatic charge-discharge testing. The results showed that the reactant concentration seriously affected the microstructure and electrochemical properties of the resulting LiFePO4 cathodes in lithium ion batteries. And a spindle-shaped LiFePO4 with suitable size has been successfully synthesized at the moderate reactant concentration of 0.5 M. After modified with PANI-CSA, the resulted C-LFP2/PANI-CSA composite cathodes displayed a significantly improved specific capacity and rate capability. And specially, that the C-LFP/10%PANI-CSA composite exhibited the best performance with an initial discharge capacity of 165.3 mAh·g−1 at a constant current of 0.1 C. Electrochemical impedance measurements also demonstrated that the coating of polyaniline significantly decreased the charge-transfer resistance of C-LiFePO4 electrodes.
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DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2026
·
IF 2.8
Zhang Fan,Zhang Jinshun,Li Xu,Wang Qingji
Polyaniline (PANI) is regarded as a prospective sensing material for room-temperature NH 3 detection owing to its high sensitivity and selectivity. In this study, WO 3 nanoflowers were prepared via a simple chemical bath deposition method, and PANI/WO 3 heterojunctions were subsequently fabricated through an in situ polymerization process. To evaluate the contribution of the heterojunction to gas-sensing performance, four sensors with different composite ratios were constructed. Among them, the optimized PW1-2 sensor exhibits a response of 3.8–100 ppm NH 3 at room temperature, which is 1.6 times higher than that of pure PANI. Notably, it achieves an ultrafast response time of only 26 s, representing an 8.8-fold improvement over pure PANI (230 s), along with near-complete desorption capability. Furthermore, PW1-2 demonstrates excellent humidity resistance, with stable responses ranging from 3.7 to 3.97 under 40–80% relative humidity. Comprehensive characterization by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy TEM, x-ray photoelectron spectroscopy (XPS), Raman spectroscopy, thermogravimetric analysis (TGA), and Brunauer–Emmett–Teller (BET) analysis reveals that PANI nanofibers uniformly wrap around WO 3 nanoflowers, forming p–n heterojunctions at the interface. XPS analysis shows that PW1-2 possesses the highest protonation degree (51.88%), which correlates with its superior sensing performance. Unlike conventional PANI/WO 3 composites, the enhanced performance is not primarily attributed to specific surface area or porosity but rather to the synergistic effect of morphological characteristics and heterojunction formation. Compared with previously reported PANI/WO 3 sensors, our PW1-2 sensor offers significantly faster response, better humidity tolerance, and complete desorption. This work provides a promising strategy for designing high-performance, humidity-resistant room-temperature NH 3 sensors. Graphical
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122490
·
IF 7.5
Ruiqi Li,Wenxin Diao,Jie He,Fangbo Zhao,Xiao Yan Tang,Yueling Sun,Junqing Li,Lei Wang
As modern industry continues to develop rapidly, water pollution caused by antibiotics and synthetic dyes has become increasingly severe. To address the challenge of efficient treatment of such organic wastewater, a novel modified MIL-101(Fe) photocatalyst was constructed via a synergistic strategy of Cu²⁺ doping and in-situ polymerization of aniline. Under simulated solar irradiation, the composite photocatalyst achieved degradation efficiencies of 93.06% for tetracycline and 94.2% for methylene blue, exhibiting broad-spectrum photocatalytic activity toward various organic dyes. Cu²⁺ and PANI synergistically optimize the band structure, narrowing the bandgap to 2.23 eV while broadening the visible-light response range, promoting charge transport, and forming a stable Z-scheme heterojunction at the interface to suppress the recombination of photogenerated charge carriers. The results of reactive species trapping experiments showed that ·OH, h⁺, and ·O 2 - collectively governed the degradation process. The core mechanism stems from the ligand-to-metal charge transfer (LMCT) characteristics of MIL-101(Fe), the electron-trapping effect of Cu²⁺, and the conjugated conductive network of PANI. In addition, the composite photocatalyst exhibited strong resistance to ionic interference and maintained degradation efficiencies above 80% after five consecutive cycles, demonstrating excellent stability and reusability. This work provides an efficient photocatalytic material and a promising strategy for the comprehensive treatment of organic wastewater.
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DOI
高影响因子
危险品化学品经营许可证（带存储）