JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Le Zhang,Ying Liu,Xuan Wang,Daimei Chen,Hao Ding
The superhydrophobic surface like lotus leaf had important application prospects in the field of self-cleaning of building exterior walls. However, its single function and poor UV-aging resistance severely limited its practical application. In this study, sericite, an inorganic UV-shielding material with UV absorption properties, was selected as carrier to prepared sericite-TiO 2 composite particles by hydrothermal method. Then, it was modified with hexadecyltrimethoxysilane (HDTMS) and sprayed onto the substrate’s surfaces, forming a superhydrophobic coating with photocatalytic performance and UV-aging resistance. The results showed that the prepared nano-TiO 2 was rutile and uniformly loaded on the sericite surface. The sericite-TiO 2 /HDTMS coating exhibited lotus-like superhydrophobic property with water contact angle (WCA) and water slide angle (WSA) of 154.7° and 2.1°, respectively. The coating also showed photocatalytic performance, and 35.8% of 10 ppm methyl orange solution can be degraded under UV light in 50 min. Due to the fact that sericite was an inorganic UV-shielding agent, the as-prepared coating showed UV-aging property. After UV irradiation for 40 h, WCA of the surface still approach 150°. The sericite-TiO 2 /HDTMS coating not only had self-cleaning performance and UV-aging property, but also the potential for practical applications.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Advanced Composites and Hybrid Materials
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2025
·Vol. 8
·期 6
·445
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IF 21.8
Bai Ziheng,Hu Haodong,Shao Zexi,Deng Jiapeng,Liang Bin,Wang Huaiyuan
Interface defects can significantly diminish the protective performance of a system. Specifically, coating aging is accelerated markedly by UV radiation, high temperature, high humidity, and microbial attack. To address these issues, this study develops a functional integrated intelligent coating with anti-corrosion and anti-fouling capabilities (SCC/ZPhP) via interfacial reinforcement and multi-component composite engineering. In this system, sericite (SC) acts as both a barrier and a loading platform, aiming to enhance the coating’s barrier performance while mitigating particle aggregation. Furthermore, constructing a Ce/Zn heterostructure (C/Z) reduces the composite’s band gap ( E g ), which effectively promotes charge separation and improves photocatalytic and photocathodic protection properties. 1,10-Phenanthroline encapsulated in polyacrylic acid (PhP) exhibits pH-responsive behavior, enabling on-demand release of the active component. The resulting red coloration facilitates visual identification of corrosion areas and supports self-healing protective effects. Compared to epoxy coatings (EP), the SCC/ZPhP coating demonstrates better weathering and anti-aging performance, maintaining impedance modulus of 10 1 ⁰ Ω·cm 2 and 10 11 Ω·cm 2 after the exposure period. Moreover, the incorporation of active factors endows the coating with excellent anti-fouling capabilities, achieving an antimicrobial rate of up to 98%. This effectively inhibits the adhesion and accumulation of marine organisms, thereby significantly reducing the risk of structural damage. Therefore, this study proposes a novel design strategy for developing multifunctional intelligent protective coatings with anti-corrosion and anti-fouling functionalities. Such coatings offer promising potential to extend the service life and enhance the structural stability of offshore engineering systems. Graphical abstract
研究领域:
材料科学
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腐蚀工程
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智能涂层
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海洋防污
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纳米复合材料
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DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2024
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IF 0
Cai Fangfei,Zhang Xiaoying,Ma Funing,Qi Linlin,Lu Di,Dai Zhenxue
The distribution coefficient ( K d ) of radionuclides is a crucial parameter in assessing the safety of high-level radioactive waste (HLW) geological repository. It is determined in the laboratory through batch and column experiments. However, differences in obtained K d values from distinct experiments have not been thoroughly assessed and compared. This study evaluated strontium (Sr) sorption on different granite materials using static batch and dynamic experiments (column and core-flooding experiments). The results from batch sorption experiments showed higher Sr sorption on granite under acidic and strongly alkaline conditions, low solid–liquid ratios, and low ionic strength. In column experiments, a two-site sorption model was used to simulate Sr transport in crushed granite and mixed pure minerals. The sorption of Sr on crushed granite exhibited a higher affinity than that of mixed pure minerals. The dual-porosity transport model was employed to investigate Sr transport behavior in fractured granite in the core-flooding experiment. K d obtained from batch sorption experiments are four to twenty times higher than those from column experiments, and two to three orders of magnitude higher than that from a core-flooding experiment. The results of this study provide valuable insights into safety assessment for the HLW geological repository.
研究领域:
环境科学
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放射性废物管理
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DOI
PubMed
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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2024
·
IF 3
Ma Xin-Yue,Cao Fang-Chao,Tang Yan,Jiang Jun-Cheng,Huang An-Chi
In this paper, a modified material EG-PR with hydrophobic and oleophobic properties was successfully prepared with expanded graphite (EG) as the main raw material and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PR) and silane coupler KH-570 (KH) as surface modifiers. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy verified the effective modification that produced a Si‒O‒Si network structure. The water contact angle (WCA) of 127° and oil contact angle (OCA) of 110° of EG-PR, unmodified EG-IA, were 92° and 20°, respectively. Fire-extinguishing tests conducted on heptane pool fire showed that EG-PR decreased the time required to extinguish the fires by 23 s, consumed less extinguishing agent, and suppressed the production of carbon dioxide during combustion compared to EG-IA, indicating its higher effectiveness. EG-PR demonstrated rapid fire-extinguishing capabilities during the experiments. It effectively extinguished the flames, created a protective layer on the oil pool’s surface, efficiently isolated heat and oxygen, and effectively suppressed flame propagation on the surface. This study highlights the potential of surface-modified expandable graphite in enhancing fire safety applications. Graphical abstract
研究领域:
材料科学
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消防工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Daheng Wu,Jianing Wang,Yuxiang Zhao,Shengfei Li,Haoyong Yang,Runxiang Tan,Tao Zhang
The widespread use of petroleum-based plastics brings potential hazards to the ecological environment. In order to solve this issue, the development of biodegradable materials with both high mechanical, barrier performances and food safety is imminent. In this work, a natural nacre-inspired seaweed-based nanocomposite material with the structure of “brick and mortar” is synthesized by rational assembling mica nanosheets in a mixture of glycerol and sodium alginate. The resultant SA/nano-mica film (1 wt% of phlogopite powder) shows high thermal stability (>180 °C) and exhibits great tensile strength of ∼ 16 MPa at ambient condition, surpassing some other reported nanocomposite materials (1.9–14.74 MPa). Meanwhile, the composite can be easily processed into different shapes for packaging applications, which could long-term preserve the freshness of foods owing to their strong ultraviolet (UV) shielding and gas barrier properties (UV transmittance of ∼ 4 % and oxygen transmission rates (100 µm) of ∼ 18.52 cc m −2 day −1 bar −1 ). Importantly, the material could completely degrade in soil within 15 days. These results indicate the great application prospect of seaweed-based nanocomposite materials in food packaging.
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高影响因子
危险品化学品经营许可证（带存储）