Journal of Water Process Engineering
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2026
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IF 6.6
Xiaoyan He,Yanling Liang,Xiaosu Cheng,Hui Fan,Zhentong Zhu,Yuxuan Zhang,Yihao Guo,Jing Li,Yuanyuan Lu,Zhiqiang Wang,Xiaoquan Lu
PPy/SrTiO 3 -Bi composites let biomass hydrogel evaporators combine photothermal conversion with photocatalytic degradation. • Adsorption interception coupled with photocatalytic degradation gives the evaporator excellent VOC removal efficiency. • The evaporator achieves a VOC removal efficiency of up to 99.3% under one-sun irradiation. • Under the same illumination condition, a high-water evaporation rate of 3.13 kg m −2 h −1 is also obtained. • This evaporator exhibits excellent salt resistance and water purification capabilities. Solar-driven interfacial evaporation technology has become an important approach to addressing the global water crisis due to its advantages such as being green and sustainable. However, due to the inherent volatility of volatile organic compounds (VOCs), the technology still faces severe challenges in removing VOCs from distilled water. In this paper, a biomass-based hydrogel evaporator (PSBH) integrating solar steam generation and photocatalytic degradation was constructed by immobilizing polypyrrole (PPy)-coated SrTiO 3 -Bi composites into an acrylamide (AM)/Kapok fibres composite hydrogel network via a one-pot method. This evaporator can effectively remove phenol (a typical VOC) that is volatilized along with water vapor, while achieving efficient solar-powered water evaporation. The introduction of kapok fibres endows AM hydrogels with superior structural stability and water transport efficiency, while reducing the energy required for the evaporation process, thereby enhancing the overall water transport and evaporation performance. PPy-coated SrTiO 3 -Bi composites achieve photothermal-photocatalytic synergy. The introduction of semimetal Bi nanoparticles enhances visible-light absorption and promotes spatial charge separation through its dual functional role as an electron trap and a plasmonic hot-electron donor, imparting excellent photocatalytic activity and photothermal conversion efficiency. Under 1 sun illumination, the interfacial evaporation rate can reach 3.13 kg m −2 h −1 . Meanwhile, the removal efficiency of a typical VOC (phenol) reaches 99.3%, enabling the simultaneous achievement of highly efficient seawater desalination and VOC removal. It is worth noting that the evaporation rate of this evaporator can still reach 2.22 kg m −2 h −1 in 20 wt% salt solution concentration, showing excellent environmental tolerance. This design offers a feasible strategy for multifunctional photothermal materials and a novel solution to VOCs pollution in solar interfacial evaporation. Download: Download high-res image (209KB) Download: Download full-size image
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高影响因子
CARBON
·
2026
·
IF 12.7
Tingwen Sun,Zijing Dong,Ziyue Yan,Hailin Wei,Yingnan Wu,Ye Hu,Jie Dong,Chao Zhi,Runjun Sun
Dual-shelled CoFe@C@PPy fibers are fabricated via microwave hydrothermal and in situ pyrrole polymerization. • PPy loading tunes magnetic-dielectric balance to optimize impedance matching. • Max RCS reduction hits 37.6 dB m² at 35°, RCS <−10 dB·m² for |θ|≥ 4°. • 134.2° contact angle brings excellent hydrophobicity and moisture resistance. The development of microwave absorbing materials (MAMs) with both wide-angle radar stealth capability and moisture resistance has become an urgent requirement for practical deployment. In this work, CoFe@C precursors are rapidly prepared via a microwave-assisted hydrothermal method, followed by in situ polymerization of pyrrole (Py) to construct dual-shelled CoFe@C@PPy hybrid fibers with different PPy loadings. The dual-shell architecture enables systematic regulation of the magnetic-dielectric balance and impedance matching. At an ultrathin thickness of 2.1 mm, the optimal sample achieves a minimum reflection loss (RL) of −52.06 dB at 13.14 GHz and a maximum effective absorption bandwidth (EAB) of 5.92 GHz. More importantly, wide-angle (0–90°) radar cross-section (RCS) simulations reveal outstanding suppression capability, with a maximum RCS reduction of 37.6 dB m 2 at an incident angle of 35°, demonstrating stable performance under oblique illumination in real radar detection scenarios. In addition, the optimal sample exhibits a water contact angle of 134.2°, showing good anti-humidity performance. This work provides a strategy for the design of dual-shelled microwave absorbers with excellent wide-angle radar cross-section reduction through interfacial polarization engineering. Download: Download high-res image (473KB) Download: Download full-size image
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高影响因子
JOURNAL OF POLYMER RESEARCH
·
2026
·Vol. 33
·期 8
·337
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IF 3.5
Wang Kai,Li Aiyuan,Zhou Xiaoyan,Yu Shibeike,Chen Bifen,Sun Xiangdong,Zhang Chenyang
Congo red (CR) is a representative benzidine-based anionic azo dye with high toxicity, carcinogenicity, and poor biodegradability, posing substantial threats to human health and aquatic ecosystems. Therefore, its effective removal from wastewater remains a major environmental challenge. To address this, magnetic Fe 3 O 4 @SiO 2 @PPy-CTAB composite microspheres (PPy: polypyrrole; CTAB: cetyltrimethylammonium bromide) were fabricated using a hydrothermal technique in combination with surface modification and in-situ polymerization. The composite was systematically examined using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometry (VSM), and X-ray photoelectron spectroscopy (XPS), showing a well-defined core-shell framework, with a specific surface area (SSA) of 52.96 m 2 /g, a saturation magnetization of 42.8 emu·g − 1 , and a positively charged surface as a result of CTAB modification. Under optimal conditions (pH = 5, Fe 3 O 4 :CTAB mass ratio = 1:1.5), the CR adsorption capacity reached a maximum of 612.68 mg/g. Kinetic, isothermal, and thermodynamic analyses indicated that the adsorption process was best described by the pseudo-second-order kinetic model and the Langmuir isotherm model, suggesting a spontaneous, endothermic, and entropy-driven chemisorption process. The adsorption mechanism was primarily governed by electrostatic interactions, synergistic π-π stacking, and hydrogen bonding. After ten desorption-adsorption cycles, the adsorption capacity retained 87.1% of its initial adsorption capacity, demonstrating good reusability. The Fe 3 O 4 @SiO 2 @PPy-CTAB composite demonstrates high CR adsorption capacity (612.68 mg/g) and good reusability (87.1% retention after 10 cycles), making it a promising candidate for magnetic separation-based dye wastewater treatment. However, the use of CTAB and organic solvents limits the designation as “green”, and real-world validation is needed before practical application.
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高影响因子
BIORESOURCE TECHNOLOGY
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2026
·
IF 8.2
Taipeng Jiang,Jian Wu,Jingjing He,Sheng Chen,Jianyong Tang,Yingying Wang,Lingling Zeng,Ruiyi Han,Haiyang Huang,Jin Li,Zhuwei Gao
To address marine oil spills, developing highly efficient recovery technologies for high-viscosity crude oil has become a research priority. This study employs processed, delignified lightweight wood (WA) as a substrate. Through in-situ polymerization of polypyrrole (PPy) and coating modification with polydimethylsiloxane (PDMS), a composite aerogel (PDMS@PPy@WA) was successfully developed, exhibiting superhydrophobicity, rapid thermal responsiveness, and outstanding stability. This material fully preserves the three-dimensional porous framework of wood, exhibiting lightweight and highly permeable structural characteristics. It demonstrates a water contact angle as high as 159.30° and possesses rapid heating capabilities under both photothermal and electrothermal dual-drive conditions. Under 1-sun solar irradiance (1 kW/m 2 ), the material surface temperature can rise to 82.4 °C within 2 min. When driven by a 6 V voltage, it can similarly reach 82.6 °C within 2 min via the Joule heating effect. Additionally, this aerogel exhibits outstanding mechanical and chemical stability, withstanding pressures equivalent to 3,780 times its own weight. It maintains stable performance after 72 h of immersion in strong acid or strong alkali environments. Based on green, renewable biomass feedstocks and employing a streamlined functionalization strategy, this work provides a sustainable material solution with application potential for efficient, all-weather crude oil recovery.
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Wei Zhang,Hengrui Wang,Siyi Ji,Yongqian Shi,Jiefeng Gao,Long-Cheng Tang,Pingan Song
In today's digital era, electromagnetic radiation pollution and fire hazard stand as a dual-edged sword, not only diminishing the efficacy of sophisticated electronic devices but also threatening human health. As a result, the pursuit of advanced electromagnetic shielding materials with high flame retardancy has ascended to the forefront of research priorities, underscoring their crucial role in mitigating these risks. In this study, pyrrole polymerization was employed to obtain a modified PPy-MXene, which was used to construct flame retardant modified MXene aerogel composites by the "Concreting" method. It was found that peak heat release rate, the total heat release, peak CO₂ production rate, peak smoke production rate and total smoke release of the C 1 M 2 MT FRs were reduced by 67.7 %, 46.7 %, 71.4 %, 71.7 % and 77.3 %, respectively. Furthermore, the average electromagnetic interference shielding effectiveness of C 1 M 2 MT FRs in the X-band and K-band reached 67.3 dB and 91.4 dB, respectively. It was noted that CMMT FRs had the ultra-low reflectivity (as low as 0.14). Additionally, the mechanical durability and strength of the aerogel composites were obviously enhanced, with compressive stress increased by a factor of 3.2, in comparison with that of the CNF aerogel.
研究领域:
材料科学
·
电子工程
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高影响因子
DYES AND PIGMENTS
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2025
·
IF 4.2
Yinchun Fang,Xianglu Zhao,Xuchen Tao
High refractive index metal oxides can produce structural colors through Mie scattering, which have been studied for use in eco-friendly textiles coloring. However, the inherently low structural order of Mie scattering structural colors hinders the formation of brilliant color on white substrates, limiting the application fields. In this research, Cu 2 O@PPy core-shell microspheres with varying particle sizes (382, 414, 452, 500 and 563 nm) were synthesized, which were used to construct the structural color coatings with blue, green, yellowish green, yellow and bright yellow on poly(acrylate) (PA) adhesive-pretreated white polyester fabric via spray-coating. Cu 2 O@PPy microsphere structural color coating on the fabrics obtained superhydrophobicity with the water contact angles (WCA) greater than 150° by spraying polydimethylsiloxane (PDMS), thus endowing them with self-cleaning function. The PDMS treatment would not have a significant impact on the color of structural color coating on fabrics. The introduction of PA adhesive imparted excellent fastness to the structural color coating on fabrics with only minimal impact on physical properties. This research presents a novel method for fabricating functional structural color coatings on white fabrics using black polymer-coated core-shell microspheres.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Wang Yanting,Song Shiyu,Liao Xilin,Zhou Pei wen,Li Runchuan,Xing Mengxing,Lin Jia-Horng,Li Liang,Liu Rangtong
The rapid development of science and technology has led to the aggravation and complexity of electromagnetic radiation pollution. Therefore, multifunctional electromagnetic interference shielding materials have become increasingly indispensable. Based on the advantages of textile materials, the modular coupling assembly strategy was utilized to achieve the structural regulation of the multifunctional PP conductive composite film and effectively endowed it with excellent EMI shielding performance. In this study, the adhesive property of polydopamine was utilized to enhance the chemical reactivity of PP films. The construction of porous conductive structures and core–shell conductive structures of PPy inside and outside PP fibers was achieved by controlling the polymerization rate of pyrrole in a low-temperature environment. The macroscopic encapsulation of the hydrophobic layer enhanced the bonding strength between the PP substrate and the conductive layer. The results show that different concentrations of pyrrole affected the microstructure and EMI shielding performance. When the concentration of pyrrole was 0.8 mol/L, the surface contact angle and surface resistance of the PP composite film were 138.42° and 73 Ω, respectively. In addition, the shielding value of the PP composite film was as high as 28.02 dB, which could effectively shield 99.84% of electromagnetic waves. This preparation strategy of coupling multiple functional layers to realize multifunctional composite films provides research ideas for the structural design of multi-purpose smart wearable electromagnetic protection composite materials.
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高影响因子
COMPOSITE STRUCTURES
·
2025
·
IF 7.1
Xiaopeng Wu,Bin Zhou,Tao Lu,Zhaohu Ding,Huiming Ning,Ning Hu,Libin Zhao,Xinyu Qi
Developing advanced carbon fiber reinforced polymer (CFRP) with structure–function integrated characteristics holds considerable significance in the aerospace and military industries. Herein, electrospun polymide (PI) nanofibrous veils loaded with conductive polypyrrole (PPy) were incorporated into the interlayer of CFRP to simultaneously enhance the interlaminar properties, through-thickness electrical conductivity and electromagnetic interference shielding (EMI) properties. Experimental results demonstrate a remarkable 179.58 % increase in mode Ⅱ interlaminar fracture toughness compared to the plain specimen. Detailed analysis reveals the enhancement is driven by multiple toughening mechanisms, including matrix plastic deformation and cracking, nanofibers stretching and breakage, matrix-fiber debonding, as well as cracks deflecting and cross-layer migration. Importantly, incorporating these hybrid nanofibrous networks doesn’t compromise the overall mechanical integrity of CFRP, instead it results in a 30 % improvement in interlaminar shear strength over the baseline composites. Furthermore, the unique alternating sandwich lay-up structure, combined with the excellent electromagnetic wave attenuation properties of the nanofibrous veils, leads to a 1406 % increase in through-thickness electrical conductivity and a 211.68 % enhancement in EMI effectiveness compared to unmodified CFRP laminates. This study not only underscores the potential of hybrid nanofibrous veils in multifunctional composite design but also provides an efficient strategy for developing high-performance CFRP tailored for demanding applications.
研究领域:
材料科学
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纳米技术
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高分子科学
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电磁学
·
航空航天工程
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
·
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.
研究领域:
材料科学
·
纳米技术
·
表面工程
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高分子科学
·
机械工程
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2024
·
IF 6.9
Yun Xue,Xingan Feng,Jiadong Wang,Jianzhang Gao,Lijun Zhang,Qi Chen,Fuqiu Ma,Yongde Yan
The immobilization of uranium in nuclear wastewater is of paramount importance for environmental and human health. However, there is a paucity of research on the immobilization of uranium in alkaline wastewater, particularly with regards to the application of novel electrodes. This article presents the utilization of an electrochemically polymerized polypyrrole stainless steel (PPy-SUS304) electrode for the effective electrochemical deposition and removal of uranium from alkaline wastewater containing uranium. According to the electrodeposition results, the uranium deposition efficiency of the novel electrode reached 96.82 %, with a uranium deposition rate of 0.048 mg U/(h·cm 2 ) and a charge efficiency of 0.055 mg U/C. These findings demonstrate the successful electrochemical reduction of UO 2 (CO 3 ) 3 4- in alkaline uranium-containing wastewater using the novel electrode, resulting in improved charge deposition efficiency. The electrode surface products were investigated using scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDS), and X-Ray Photoelectron Spectroscopy (XPS). The SEM and EDS results demonstrate the formation of a uniform PPy film on the surface of SUS304. In addition, the White light interferometer (WLI) test reveals that the PPy-SUS304 electrode exhibits increased roughness compared to the SUS304 electrode. The XPS results revealed that the electrode surface products of PPy-SUS304 were actually U compounds constituted of U(IV) oxides or hydroxides. This study provides a new perspective for the development of novel electrodes to suppress side reactions and efficiently recover uranium from alkaline uranium-containing wastewater.
研究领域:
环境科学
·
材料科学
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Jingru Huang,Haiyan Zhao,Na Li,Min Cui,Cong Zhang
Sunset yellow(SY) is a synthetic azo food dye, which is extensively utilized in the food processing industry. Nevertheless, its potential detrimental impacts on human health necessitate meticulous consideration. Consequently, the development of a user-friendly and rapidly responsive assay for the monitoring and analysis of SY in food products is of utmost importance. This study introduces an innovative electrochemical sensor based on polyoxometalates decorated with polypyrrole and multi-walled carbon nanotubes [Co 4 (PW 9 O 34 ) 2 @PPy-MWCNTs] for SY detection. The Co 4 (PW 9 O 34 ) 2 composite was prepared by using the nitrogen-containing ligand (1,4-bis (1-imidazolyl) butane) and the conductive polypyrrole was coated on Co 4 (PW 9 O 34 ) 2 , which avoided the solution of polyoxometalates in the electrolyte and improved the electrochemical stability. Multi-walled carbon nanotubes was employed to further enhance electron transfer rate. Research has shown that Co 4 (PW 9 O 34 ) 2 @PPy-MWCNTs exhibits superior electron transfer rates and remarkable electrocatalytic activity, which significantly amplify the oxidation signal of SY. Under optimal experimental conditions, the established detection range for SY is 10–1150 μM, with a detection limit of 0.425 μM. Additionally, the Co 4 (PW 9 O 34 ) 2 @PPy-MWCNTs modified electrode has good anti-interference and stability. The Co 4 (PW 9 O 34 ) 2 @PPy-MWCNTs modified electrode was successfully applied to detect SY in Fanta with yielding recovery rates between 97.79 % and 101.48 %, demonstrating substantial application potential as an effective means for SY detection.
研究领域:
食品科学
·
分析化学
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2019
·
IF 3.074
Chengqiang Ding,Zhiheng Guo,Jianxin Xiong,Datong Wu,Yongxin Tao,Yong Qin,Yong Kong
Poly(acrylic acid- co -acrylamide) (P(AA-co-AM)) hydrogels with upper critical solution temperature (UCST) were synthesized via radical copolymerization technology, which were then incorporated with SiO 2 @polypyrrole (SiO 2 @PPy) for the construction of light-, thermo- and pH-responsive drug delivery system. The synthesized SiO 2 @PPy@P(AA-co-AM) hydrogels were then examined by Fourier transform infrared (FT-IR) spectrometry, field emission scanning electron microscopy (FESEM), thermogravimetry (TG) and differential thermogravimetric (DTG). Finally, the designed SiO 2 @PPy@P(AA-co-AM) hydrogels were used for controlled delivery of 5-fluorouracil (5-FU), an anti-cancer drug. An encapsulation ratio of up to 92.2% was obtained when 5-FU was encapsulated in the SiO 2 @PPy@P(AA-co-AM) hydrogels, and the cumulative release of 5-FU could reach 83.9% with the near-infrared (NIR) irradiation of 6 h at pH 7.4. During the controlled release of 5-FU, PPy in the system could convert the NIR irradiation to heat as a photo-thermal transducer while maintaining the temperature in the UCST range of P(AA-co-AM). In addition, SiO 2 in the hydrogels acted as a gatekeeper to prevent the burst release of 5-FU.
研究领域:
材料科学
·
药学
·
生物医学工程
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高影响因子
危险品化学品经营许可证（带存储）