RESOURCES CONSERVATION AND RECYCLING
·
2025
·
IF 10.9
Yu Yang,Qindong Wang,Chi Wang,Zhi Geng,Mingxin Huo,Meng Sun
A solar-driven and autonomous photo-thermoelectrochemical osmotic system (PTECOS) is developed to simultaneously regenerate freshwater and recover high-value metal from wastewater, providing a sustainable approach to global resource scarcity. This system employs a novel g-C 3 N 4 /TiO 2 @CF photoanode that enables water purification and metal recovery without the need for external energy input. The integration of a forward osmosis (FO) membrane ensures continuous water replenishment via evaporation-induced osmotic gradients while effectively suppressing salt accumulation on the photoanode surface. By combining efficient photothermal evaporation with enhanced photoelectrochemical conversion in a unified design, PTECOS significantly outperforms conventional photoelectrochemical osmotic systems. The optimized system achieves an interfacial evaporation rate of 1.32 kg m −2 h −1 under 100 mW cm −2 illumination, coupled with an FO water flux of 1.30 L m −2 h −1 . It enables copper recovery at 7.8 mg cm −2 h −1 and reaches a peak power density of 1448.6 mW m −2 . The purified water satisfies the World Health Organization (WHO) and the United States Environmental Protection Agency (EPA) drinking-water standards for the examined contaminants. Field tests under natural sunlight demonstrate stable day-night operation. By integrating photothermal evaporation, photoelectrochemical processes, and osmotically-driven water transport, PTECOS overcomes the traditional trade-off between evaporation efficiency and salt accumulation, achieving energy-autonomous freshwater regeneration and efficient metal recovery. This versatile platform offers a promising path toward sustainable water-treatment technologies that combine energy self-sufficiency with resource recovery, thereby addressing the pressing challenges of global resource scarcity.
研究领域:
环境科学
·
材料科学
·
化学工程
·
能源工程
·
水资源管理
·
可持续技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Cong Zhou,Zhengya Wei,Feihu Yun,Le Yang,Tianxing Liu,Guilong Chen,Xia Fang,Shuang Yin,Ruzhong Zuo
Lightweight yet strongly attenuating microwave absorbers remain in urgent demand. In this article, polymer-derived C f /C/SiC ceramic aerogel composites (CACs) with hierarchical porous structure have been prepared via a sol-gel route followed by freeze-drying. The C f /C/SiC CACs were composed of polyacrylonitrile fibers/hydroxyethyl cellulose (PAN/HEC) derived carbon framework and polycarbosilane derived SiC aerogel. The incorporation of PAN/HEC was used to tailor the conductivity and impedance matching characteristics of CACs, and the permittivity of C f /C/SiC CACs could be adjusted by changing the quantity of PAN fibers introduced or by altering the pyrolysis temperature. After pyrolysis at 900 °C, a ceramic yield of ∼38 % was obtained, together with a BET surface area of 95.63 m 2 /g. Moreover, the C f /C/SiC exhibited an outstanding reflection loss ( RL min ) of −75.19 dB at 12.82 GHz ( d = 2.52 mm), whereas its effective absorption bandwidth (EAB) was further broadened to 5.9 GHz at 2.24 mm. The superior microwave absorption (MA) performance of C f /C/SiC CACs stems from: (i) hierarchical porous structure that multiply internal reflections, (ii) PAN/HEC-derived carbon framework that optimize the impedance matching, and (iii) synergistic effect of conductivity loss and interfacial polarization loss. The optimal preparation temperature is 700 °C, lower than that of comparable ceramic-based absorbers. Therefore, this research provides a low-cost and convenient method to fabricate MA materials with lightweight and high-performance.
✓ 已验证
产品关联
DOI
高影响因子
Advances in Materials Science and Engineering
·
2015
·Vol. 2015
·期 1
·465358
·
IF 0.744
Lei Wang,Feng Hou,Xin Wang,Jiachen Liu,Anran Guo
Continuous carbon nanotube (CNT) networks were formed in C f /SiC composites via freeze-drying method. Composites were fabricated by precursor infiltration and pyrolysis (PIP) process afterwards. The different distribution morphologies of CNTs in the preforms originating from the different CNT contents were analyzed while the influence of the distribution of CNTs was discussed in detail. Compared to composites without CNTs, the interfacial shear strength (ILSS) and the flexural strength of C f /1%CNTs/SiC were increased by 31% and 27%, respectively, but the values of C f /2.5%CNTs/SiC decreased as a result of lots of defects caused by excess CNTs. With the analysis of ILSS, the flexural strengths, and the fracture morphologies, CNTs effectively improved the weak interfacial strength between T700SC carbon fibers and SiC matrix.
✓ 已验证
DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2026
·
IF 7.7
Wang Zhang,Chun Yan,Yingdan Zhu,Bowen Zhang,Dong Liu,Haibing Xu,Gang Chen,Yunpeng Xu
The interfacial heat resistance of carbon fiber reinforced polyether ketone ketone (CF/PEKK) composites plays a critical role in their high-temperature applications. In this study, polyetherimide (PEI), polysulfone (PSF) and polyethersulfone (PES) resins were selected as sizing agents for carbon fibers to investigate their effects on the interfacial heat resistance of CF/PEKK composites. Results show that all three sizing resins possess high thermal stability suitable for CF/PEKK composite processing and effectively enhance the interfacial shear strength (IFSS). PEI resin exhibited the best compatibility with the PEKK matrix. The PEI-sized CF/PEKK composites achieved the highest interfacial properties, with an IFSS value of 100.5 MPa, representing a 26.6% improvement over desized composites. Analysis of interfacial heat resistance further revealed that composites modified with 1 wt% PEI retained the highest IFSS of 74.4 MPa at 140°C, which is 31.7% higher than that of desized composites under the same conditions. This enhancement primarily stems from the good compatibility and high heat resistance, which simultaneously improve the interfacial adhesion strength and thermal stability of CF/PEKK composites. These advantages help broaden the application prospects of CF/PEKK composites in high-temperature environments.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Jia'nan Wang,Can Cheng,Jiaying Xu,Zhisong Liu,Haomiao Xu,Wenjun Huang,Zan Qu,Naiqiang Yan
Tetrafluoromethane (CF 4 ), a highly potent greenhouse gas characterized by the notable capacity to absorb infrared radiation, making its effective control essential for mitigating global warming. However, the activation of CF 4 faces challenges in the conventional approaches caused by its symmetric structure and strong C F bonds. In this work, we presented an approach to enhance the activation of C F bonds using an inductance-enhanced Ce/Al 2 O 3 catalyst within the designed plasma-catalytic reaction system featuring a step-discharge effect. The optimal CF 4 decomposition efficiency reached approximately 89.5 % at the power of 18 W, while maintaining above 88.6 % for 24 h. The impact of plasma conditions and flue gas parameters on CF 4 decomposition and energy efficiency was also investigated. Py-IR showed that the Ce/Al 2 O 3 catalyst provided more Lewis acid sites as the active centers for breaking C F bonds. In situ FTIR and in situ OES studies revealed that the intermediates generated from CF 4 decomposition can react with active oxygen to form C O bond under the plasma-catalytic effect, preventing the reformation of C F bonds. DFT calculations demonstrated that the Ce/Al 2 O 3 exhibited a lower energy barrier to dissociate CF 4 and a stronger adsorption for O 2 . This work established a novel pathway for the activation of C F bonds to achieve the efficient decomposition of CF 4 at low temperatures.
研究领域:
环境化学
·
等离子体催化
·
材料科学
·
温室气体减排
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2018
·Vol. 102
·期 1
·70-78
·
IF 2.956
Ping Hu,Yuan Cheng,Xiang Guo,Chen Ma,Peitao Hu,Qiang Qu,Hong Zhao,Shanyi Du
Inspired by grouting technique in architectural engineering, an innovative method of slurry injection and vacuum impregnation was put forward to introduce nanosized ZrC–SiC ceramics into PyC modified 3-D needle-punched carbon fiber preform homogeneously and continuously, followed by spark plasma sintering to prepare C f /ZrC–SiC with graceful mechanical responses. The composite possessed improved fracture toughness and work of fracture at 5.37 ± 0.25 MPa∙m 1/2 and 951 ± 12 J/m 2 , 50% and nearly one order of magnitude higher than those of ZrC–SiC composite, respectively, with rivaling flexural strength at 177 ± 8 MPa synchronously. A graceful fracture mode was embodied in an obviously extended yield plateau with increased failure displacement by 300%. This enhancement was attributed to the uniform and continuous combination of ZrC–SiC with carbon fiber preform as well as protection and interface tailoring from PyC coating. The study offered an easy and effective method of preparing 3-D fiber reinforced ceramic matrix composites.
研究领域:
材料科学
·
建筑工程
·
陶瓷工程
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2022
·
IF 11.322
Yi Hu,Shaojie Pang,Jialiang Li,Jianjun Jiang,Dimitrios G. Papageorgiou
The weak fiber-matrix interface is a bottleneck hindering the development of carbon fiber composites . In this work, an optimized electrophoretic deposition (EPD) approach was explored to improve the interfacial properties by depositing uniformly two-dimensional MXene (Ti 3 C 2 T x ) nanoparticles onto the surface of carbon fibers (CF). The MXene-CF hybrids were then used to fabricate continuous carbon fiber reinforced polymer (CFRP) composites. The results manifested that the presence of MXene nanoparticles on the CF surfaces could significantly increase the fiber surface energy and wettability , as well as their surface roughness . As a result, a remarkable increase of the interfacial strength and flexural properties of CFRP has been observed. The functionalized MXene–CF–epoxy composites witnessed a prominent enhancement of interlaminar shear strength (ILSS), flexural strength and monofilament tensile strength compared to their unfunctionalized counterparts. The versatile EPD strategy proposed herein, constitutes a promising approach for CFRP modification that can lead to significantly improved performance.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Horizons
·
2023
·Vol. 10
·期 9
·3761-3772
·
IF 13.3
Yuanyuan Chen,Tingting Sui,Chaojie Lyu,Kaili Wu,Jiwen Wu,Meifang Huang,Ju Hao,Woon-Ming Lau,Chubin Wan,Dawei Pang,Jinlong Zheng
Interface engineering is a method of enhancing catalytic activity while maintaining a material's surface properties. Thus, we explored the interface effect mechanism via a hierarchical structure of MoP/CoP/Cu3P/CF. Remarkably, the heterostructure MoP/CoP/Cu3P/CF demonstrates an outstanding overpotential of 64.6 mV at 10 mA cm−2 with a Tafel slope of 68.2 mV dec−1 in 1 M KOH. DFT calculations indicate that the MoP/CoP interface in the catalyst exhibited the most favorable H* adsorption characteristics (−0.08 eV) compared to the pure phases of CoP (0.55 eV) and MoP (0.22 eV). This result can be attributed to the apparent modulation of electronic structures within the interface domains. Additionally, the CoCH/Cu(OH)2/CF‖MoP/CoP/Cu3P/CF electrolyzer demonstrates excellent overall water splitting performance, achieving 10 mA cm−2 in 1 M KOH solution with a modest voltage of only 1.53 V. This electronic structure adjustment via interface effects provides a new and efficient approach to prepare high-performance hydrogen production catalysts.
研究领域:
材料科学
·
催化
·
电化学
·
能源材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Naiyu Jiang,Yingze Li,Qiao Wang,Nan Zhou,Hongyan Zhang,Xiaohu Zou,Dongxing Zhang
Carbon fiber (CF) reinforced polymer composites have found widespread application due to their exceptional properties, including high specific strength and modulus, thermal stability, and chemical durability. However, since the interface serves as the bridge for load transfer between fiber and resin, the interfacial property directly affects the holistic performance of the composites. Considering the inertness of CF and polyetheretherketone (PEEK), as well as the modulus gap between them, we propose a flexible-rigid sizing agent to enhance the interfacial interaction. The sizing layers are constructed by the transition layer of polyetherimide (PEI) and the hybrid nanoparticles consisting of rare-earth coordination bonded flexible aramid nanofiber and rigid nano-TiO 2 . Calculated by density functional theory (DFT), the electron density difference (EDD) result displays the transfer of electrons between aramid nanofiber and nano-TiO 2 acted by rare-earth element. This treatment with flexible-rigid sizing agent significantly improves the surface activity, roughness, and wettability of CF. Meanwhile, the flexural strength and interlaminate shear strength (ILSS) of as-prepared CF/PEEK composites are 91.4% (810.2 MPa) and 58.2% (82.6 MPa) higher than those of unmodified CF/PEEK composites. This work presents a robust and promising approach for fabricating high-performance CF/PEEK composites.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITE STRUCTURES
·
2024
·
IF 6.3
Fushuai Wang,Chi Zhang,Xinhui Geng,Qiang Gao,Liancai Xun,Wuju Wang,Xinghong Zhang,Ping Hu
With the increasing Mach numbers of hypersonic vehicles, extreme aerothermal environments impose substantial challenges on vehicle materials. High thermal conductivity materials facilitate rapid heat redistribution to diminish localized thermal accumulation and reduce material thermal damage, providing a viable route for further enhancing the operational temperature of materials. Here, we successfully fabricate high thermal conductivity C f /HfB 2 -SiC composites through the solid–liquid combination process, achieving an x-direction thermal conductivity of 161.11 W/(m·K), which represents an order of magnitude improvement over traditional carbon fiber-reinforced ultra-high temperature ceramic composites. 3D X-ray computed tomography (CT) is employed to analyze the structural composition of the high thermal conductivity C f /HfB 2 -SiC composites, and the Gaussian Mixture Model is applied to segment the CT images, thus establishing a mesoscale representative volume element (RVE) model based on CT. Combining theoretical models and finite element analysis, we propose a multiscale heat transfer model for high thermal conductivity C f /HfB 2 -SiC composites, which effectively investigates the heat transfer mechanisms of the composites. The fabrication and multiscale heat transfer modeling of high thermal conductivity C f /HfB 2 -SiC composites provide a theoretical basis and guidance for enhancing material performance and design optimization.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
SURFACE AND INTERFACE ANALYSIS
·
2022
·Vol. 54
·期 8
·909-917
·
IF 1.702
Li Jian
In order to improve the surface wettability of carbon fiber and enhance its composite interface performance, dimethylamine treated TiO2 was coated on carbon fiber (CF). The surface morphology, surface chemical state, and surface wettability of CF were characterized by SEM, XPS, and TEM tests, and the interlaminar shear strength (ILSS) and cross-sectional morphology tests were used to test the performance of CF/Low density polyethylene (LDPE) composites. The interface bonding status was analyzed and characterized. The results show that after the surface treatment of CF by dimethylamine treated TiO2, the O/C (atomic ratio) of the surface of CF is increased, and a certain amount of nano-scale small convex micro-mechanical structure is given, which improves the surface wetting of CF. The surface of the CF modified by the TiO2 is rough; the contact area between modified CF and LDPE increases.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Xiangming Li,Jia'nan Liu,WeiXue Bai,Wanjun Yu,Qinghong Meng,Junting Liu
Simultaneously achieving high electromagnetic wave absorption and excellent mechanical properties in composites with a carbon fibre–reinforced SiC matrix remains a pivotal challenge for advanced aerospace applications. This study presents a dual–modification post–processing strategy that combines a periodic wedge–shaped surface structure with a SiO 2 –B 2 O 3 –Li 2 O–SiC absorbing coating. The engineered surface structure reduced the mean reflection loss ( RL ) from –(0.12–0.14) to –(1.88–1.92) dB by deflecting incident waves, and the absorbing coating further reduced the RL to –(4.92–5.01) dB owing to impedance matching and dipole attenuation. The prepared composites exhibited good electromagnetic wave absorption performance at 800 °C, with a mean RL of –(6.49–7.07) dB. Furthermore, interfacial stress analysis showed that the wedge structures redistributed the tensile stress into higher shear stress and lower positive stress, which increased the bond strength from 3.1 to 7.4–7.9 MPa. This post–processing approach successfully addresses the competing requirements of broadband electromagnetic stealth, high temperature resistance, and high load–bearing capacity, and thereby establishes new design principles for multifunctional ceramic matrix composites in extreme operational environments.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）