COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
·
IF 4.9
Qichao Zhang,Xu Liu,Yishan Jiang,Binbin Zhang
The corrosion protection and ice-over delay of aluminum alloys have always been pressing issues. Lotus-inspired superhydrophobic materials show great potential in the field of corrosion prevention and delayed icing, but they are currently prone to failure due to wetting and adhesion by low surface tension liquids. In this paper, we constructed a superamphiphobic (superhydrophobic and superoleophobic) organosilane-grafted attapulgite (OG-ATP) coating on 5083 aluminum alloy substrates using ATP, tetraethyl orthosilicate (TEOS), and 1 H,1 H,2 H,2 H-perfluorooctyltriethoxysilane (PFAS) through hydrolysis-condensation reaction and spray-coating technique. The coating exhibits contact angles greater than 150º and sliding angles less than 10º for water, glycerol, ethylene glycol, peanut oil, and even n-hexadecane with surface tension@20 ºC of 27.5 mN/m. Through studying surface morphologies , chemical compositions, electrochemical behaviors, self-cleaning, and anti-icing performance, it was found that the R ct and |Z| 0.01 Hz of the protected aluminum alloy increased by four orders of magnitude with a corrosion inhibition efficiency of 99.99 %, demonstrating excellent anti-corrosion functionality. Additionally, icing test results at -5 °C, -10 °C, and -15 °C show that the prepared coating exhibits significant delayed icing performance. We believe that the integration of properties such as water-oil repellency, self-cleaning, anti-corrosion, and anti-icing will enable superamphiphobic materials to demonstrate enormous application prospects in various fields.
研究领域:
材料科学
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表面工程
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产品关联
DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2025
·Vol. 32
·期 3
·689-698
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IF 7.2
Xu Kai,Gao Qingqing,Shi Shaoqi,Liu Pei,Ni Yinxu,Hao Zhilei,Xu Gaojie,Fu Yan,Liu Fenghua
Exploring high-efficiency and broadband microwave absorption (MA) materials with corrosion resistance and low cost is urgently needed for wide practical applications. Herein, the natural porous attapulgite (ATP) nanorods embedded with TiO 2 and polyaniline (PANI) nanoparticles are synthesized via heterogeneous precipitation and in-situ polymerization. The obtained PANI–TiO 2 –ATP one-dimensional (1D) nanostructures can intertwine into three-dimensional (3D) conductive network, which favors energy dissipation. The minimum reflection loss (RL min ) of the PANI–TiO 2 –ATP coating (20wt%) reaches −49.36 dB at 9.53 GHz, and the effective absorption bandwidth (EAB) can reach 6.53 GHz with a thickness of 2.1 mm. The excellent MA properties are attributed to interfacial polarization, multiple loss mechanisms, and good impedance matching induced by the synergistic effect of PANI–TiO 2 nanoparticle shells and ATP nanorods. In addition, salt spray and Tafel polarization curve tests reveal that the PANI–TiO 2 –ATP coating shows outstanding corrosion resistance performance. This study provides a low-cost and high-efficiency strategy for constructing 1D nanonetwork composites for MA and corrosion resistance applications using natural porous ATP nanorods as carriers.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Yongqian Shen,Yuchen Zhang,Guibin Zhang,Fan Zhang,Jiafeng Cao,Fulong Yang,Xin Liu,Wenjuan Zhang,Huixia Feng,Xueyan Du
Multicomponent design based on magnetic carbon nanofibers (CNFs) composite is an expected approach to achieve excellent microwave absorption. Herein, the Co/attapulgite (ATP)/CNFs were prepared via electrospinning and vacuum calcination . The structure and electromagnetic (EM) properties of Co/ATP/CNFs impacted by the structure evolution of ATP at different calcination temperatures was investigated. At the calcination temperature of 550 °C, the optimal reflection loss (RL) reached −46.67 dB at 15.76 GHz in 2.5 mm thickness, and the effective absorbing bandwidth (EAB) reached 6.72 GHz at 3.0 mm thickness. ATP is introduced into Co/CNFs to construct the magnetic CNFs with various interfaces and bending structures, thereby enhancing dielectric loss and improving impedance matching, and finally realizing broadband absorption. This work presents a promising mentality to obtain environmental protection and efficient microwave absorbing materials (MAs).
研究领域:
材料科学
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电磁学
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DOI
高影响因子
WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 237
·期 3
·129
·
IF 3
Han Yuliang,Fang Jiahui,Ji Xinyuan,Hu Sheng
To address the problem of excessive Cd (II) content in selenium-rich soil and water in Enshi region, this experiment utilized ion imprinting for selective adsorption of cadmium, which made the separation of selenium and cadmium possible. A novel attapulgite-based Cd(II) ion-imprinted polymer (AF-IIP) was prepared with the surface imprinting technique, using magnetic attapulgite as the matrix and (3-mercaptopropyl) trimethoxysilane (MPS) as the functional monomer. SEM, XRD, VSM, FT-IR and EDS elemental analysis were performed to confirm the structural transformations and compositional changes of the materials during the preparation process. The optimal pH, optimal time, adsorption kinetics and adsorption isotherms during the adsorption of Cd (II) by ion-imprinted polymers were investigated. The experimental results showed that the optimum pH of the adsorption process was 6.0 and the maximum adsorption amount was 49.0 mg·g −1 . In the presence of competitive ions, the adsorption capacity of AF-IIP for Cd (II) is much larger than that of Se ions, indicating that AF-IIP has good selectivity. The adsorption reaction conformed to the Langmuir isotherm model and kinetic data were more suitable to be explained by pseudo-second-order model. Furthermore, XPS analysis confirmed that Cd(II) adsorption primarily occurs via interactions with thiol (-SH) groups. In addition, regeneration tests have shown that AF-IIP was reusable and stable.
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DOI
高影响因子
TALANTA
·
2018
·
IF 4.244
Mengsa Chai,Yihui Chen,Rongrong Xuan,Junfeng Ma,Tingting Wang,Dan Qiu,Lihua Zhang,Yukui Zhang
In current study, an attapulgite nanoparticles-based hybrid monolith was prepared by crosslinking 3-trimethoxysilylpropyl methacrylate modified attapulgite nanoparticles with acrylamide and N, N′-methylenebisacrylamide. The crosslinking of attapulgite into the hybrid monolithic matrix has notable increased the column efficiency of adenosine comparing with the neat one without attapulgite. The resulting hybrid monoliths showed good permeability and good mechanical stability. It was further applied for separation of polar compounds by hydrophilic interaction chromatography (HILIC). The key factors affecting the separation efficiency of the developed hybrid monoliths (i.e. acetonitrile content, salt concentration and pH in the mobile phase) have been completely investigated. The column efficiency was up to 147,613 plates/m for the HILIC separation of aspirin. Good repeatability of retention time was achieved, with relative standard deviations for run-to-run (n = 3), column-to-column (n = 3) and batch-to-batch (n = 3) in the range of 1.08–1.45%, 2.44–3.41% and 2.15–4.96%, respectively. We propose that the attapulgite nanoparticles-based hybrid monolith would provide a promising stationary phase for hydrophilic interaction chromatography.
研究领域:
分析化学
·
色谱技术
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DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2017
·Vol. 24
·期 5
·1-9
·
IF 1.615
Xue Sheng,Yang Haicun,Ma Wenzhong,Gong Fanghong,Tao Guoliang,Liu Chunlin,Pan Ji
Poly(methyl methacrylate) brushes grafted from attapulgite nanoparticles (ATP@PMMA) were prepared by R-Supported reversible addition-fragmentation chain transfer polymerization (RAFT). ATP was firstly activated, and allowed to react with γ-aminopropyltriethoxysilane (APTES), 4,4′-azobis(4-cyanovaleric acid) (ACVA) and bis(thiobenzoyl) disulfide stepwise to afford 4-cyanopentanoic acid dithiobenzoate functionalized ATP (ATP-CPADB). Then, RAFT polymerizations of MMA mediated by the different systems were conducted and compared systemically. The grafting process was verified by FTIR, XRD, XPS, TGA and TEM data. Kinetic behavior indicated that the anchored CPADB is more effective before diffusing into the bulk phase. The grafting ratio ( G
r ), while M
n of grafted and free polymer increased linearly with increasing monomer conversion in presence of free CPADB, giving the hybrid particles with more homogeneous distribution of grafted polymer layer.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
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2024
·
IF 2.8
Shuaibin Wu
In this study, a novel surface covalent reaction method was used to modify attapulgite nanoparticles on the surface of polypropylene adsorption membrane to adsorb various small molecular pollutants for the first time. The surface covalent reaction method has the advantage of step control. Therefore, the uniformity and stability of attapulgite nanoparticles can be ensured, and then could effectively improve the adsorption performance of polypropylene adsorption membrane. On the other hand, compared with various materials modified on the surface of polypropylene adsorption membrane currently, attapulgite nanoparticles has the characteristics of low cost and environmental friendliness, which is more conducive to the large-scale practical application. The polypropylene adsorption membrane modified with attapulgite nanoparticles was characterized by field emission scanning electron microscopy, fourier transform infrared spectrometer and X-ray diffractograph, and it was confirmed that the attapulgite nanoparticles was successfully modified on the surface of the polypropylene adsorption membrane. The experimental results showed that the adsorption capacities of polypropylene adsorption membrane modified with attapulgite nanoparticles could reach 11.53 mg/g, 8.7 mg/g and 5.78 mg/g for cyromazine, malachite green and dagenan respectively within 10 s. In the case of the above three analytes, the minimum detected concentration could reach 0.02 mg/mL, and the relative standard deviation was about 10 %. At the same time, the adsorption performance of polypropylene adsorption membrane modified with attapulgite nanoparticles did not decrease significantly after 50 cycles. A standard recovery of 76.8 % − 89.5 % and a relative standard deviation of 7.2 % − 15.2 % were obtained by using the polypropylene adsorption membrane modified with attapulgite nanoparticles to adsorb cyromazine in cucumber skin samples, indicating that the polypropylene adsorption membrane modified with attapulgite nanoparticles has the ability to treat complex samples.
研究领域:
材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
Materials
·
2026
·Vol. 19
·期 3
·554
·
IF 3.2
Naveed Karim,Tin Kyawoo,Saeed Ahmed,Weiliang Tian,Huiyu Li,Yongjun Feng
A carbon-modified attapulgite composite (C-AATP@CTAB) was synthesized via the hydrothermal method using citric acid as the carbon source and cetyltrimethylammonium bromide (CTAB) as a surface modifier for efficient rhodamine B (Rh-B) removal. Carbon modification elevated the composite’s specific surface area (212 m2/g) and negative surface charge (−38.21 mV), significantly enhancing dye adsorption capacity to 666.66 mg/g—nearly double that of unmodified ATP variants (360.4–386.8 mg/g). Kinetic studies confirmed pseudo-second-order adsorption kinetics, attributed to hydrogen bonding and van der Waals interactions between Rh-B and the composite. Under photo-Fenton conditions, C-AATP@CTAB achieved 99.8% Rh-B degradation within 20 min, demonstrating superior catalytic performance in heterogeneous Fenton/photo-Fenton systems. This work establishes a low-cost, high-efficiency adsorbent-catalyst hybrid derived from low-grade attapulgite, offering promising avenues for sustainable wastewater treatment.
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产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124166
·
IF 7.5
Jie Tang,Hangxuan Li,Zhijiang Sun,Li Chen,Ziqing Tang,Fen Ran
Attapulgite is an ideal modifier for thin-film nanocomposite nanofiltration membranes due to its superior dispersibility and surface activity, endowing it with low-cost application potential in water treatment. However, a systematic comparative study on the effect of attapulgite sources on the separation performance of thin-film nanocomposite membranes remains a gap to be filled. This study systematically compared the application performance of attapulgite from three representative origins (Huangnishan, Jiangsu; Linze, Gansu; Mingguang, Anhui, China) in fabricating thin-film nanocomposite nanofiltration membranes via interfacial polymerization. As compared to the pristine PA membrane, the nanofiltration membrane incorporated with 1.0 g/L Mingguang attapulgite achieved the optimal performance, with a 94% water permeance enhancement while retaining 98.0% Congo red rejection and 92.1% Na 2 SO 4 rejection, as well as a flux recovery ratio of over 90%. The multifunctional role of well-dispersed Mingguang attapulgite (enhanced hydrophilicity, electrostatic repulsion, robust hydration layer) was responsible for the balanced permeance, selectivity and anti-fouling performance. In contrast, Linze attapulgite, with lower crystallinity coupled with higher impurity content, resulted in the blockage of membrane channels and a corresponding decrease in permeance. Huangnishan attapulgite had a relatively low absolute zeta potential and poor dispersibility. This work demonstrates that attapulgite origin directly affects nanofiltration membrane performance by regulating material properties, providing a theoretical basis for selecting cost-effective attapulgite sources for high-efficiency nanofiltration membranes fabrication.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2020
·
IF 6.444
Jundong Zhu,Fuxing Zhao,Renjie Xiong,Tangping Peng,Yinyi Ma,Jiang Hu,Le Xie,Chongwen Jiang
The advanced thermal management material with high mechanical strength and low thermal conductivity have an extremely important position in thermal insulation. Herein, we successfully prepared a green sustainable and low-cost composite aerogel with attapulgite and gelatin as the main components, and then obtained by chemical crosslinking and freeze-drying. Dopamine was used to functionalize attapulgite to increase interface compatibility between inorganic phase and gelatin molecules. The results show that the as-prepared attapulgite/gelatin composite aerogel have lower bulk density (ρ = 0.036–0.062 g cm −3 ), compression modulus up to 3.92 MPa, lower thermal insulation (λ = 34.28–35.29 mW/m K) and an excellent fire resistance (total heat release rate (THR) to 5.4 J kg −1 ), which mainly attributed to the improvement of the physical properties of the composite aerogel and the construction of the micro/nano structure by the attapulgite with high aspect ratio and high specific surface area embedded in the gelatin skeleton.
研究领域:
材料科学
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热管理工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 132
·期 28
·
IF 1.768
Hang Xu,Haicun Yang,Liu Zhang,Qingting Ni,Fanghong Gong
The Core-shell hybrid particles with attapulgite (ATP) as the core and polymethylmethacrylate (PMMA) as the shell (ATP- g -PMMA) were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization method. The diameter of ATP- g -PMMA was increased to 50–60 nm, and the surface hygroscopicity was decreased observably after surface grafting. Then, ATP- g -PMMA hybrid particles were filled into the polycarbonate (PC) by melt mixing to afford nanocomposites, and the mechanical properties, microstructures, thermal stability, and rheological behavior of nanocomposites were investigated by varying ATP- g -PMMA concentration in the range 1, 3, 5, and 7 wt % in PC. Fourier Transform infrared spectroscopy (FTIR) suggested that there is no esterification reaction between particles and matrix. Slight changes in tensile strength, and noticeable decrease of elongation and impact strength were observed with the increase in ATP- g -PMMA particles loading. The morphology evaluated by field-emission scanning electron microscopy (FESEM) indicated that ATP- g -PMMA was dispersed with a diameter range of 80–100 nm, and phase separation was appeared with increasing ATP- g -PMMA loadings. Thermogravimetric analysis (TGA) results revealed the thermal stability of composites was strengthened. The disentanglement and interface slip induced by preferred orientation and directional arrangement of ATP- g -PMMA resulted in lower complex viscosity (η*) and higher loss factor (tan δ) compared with the pristine PC. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42262.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2011
·
IF 3.074
Jianming Pan,Longcheng Xu,Jiangdong Dai,Xiuxiu Li,Hui Hang,Pengwei Huo,Chunxiang Li,Yongsheng Yan
Via encapsulation of attapulgite/Fe 3 O 4 magnetic particles (ATP/Fe 3 O 4 ), the magnetic molecularly imprinted polymers (MMIPs) were synthesized for the selective recognition of 2,4-dichlorophenol (2,4-DCP). MMIPs were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) analysis, thermogravimetric analysis (TGA), vibrating sample magnetometer (VSM), transmission electron microscopy (TEM), nitrogen adsorption–desorption analysis and Raman spectroscopy. MMIPs were demonstrated claviform shape with an imprinted polymer film (thickness of about 16 nm), and exhibited magnetic property ( M s = 5.67 emu g −1 ) and thermal stability. Batch mode adsorption studies were carried out to investigate the specific binding capacity, binding kinetics and recognition specificity. The Langmuir isotherm model was fitted to the equilibrium data better than the other models, and the monolayer adsorption capacity of MMIPs were 145.79 mg g −1 at 298 K. The kinetic properties of MMIPs were well described by the pseudo-second-order equation, initial adsorption rate and half-adsorption time. The selective recognition experiments demonstrated high affinity and selectivity towards 2,4-DCP over structurally related phenolic compounds. In addition, MMIPs could be regenerated, and their adsorption capacity in the fifth use was about 7.53% loss in 2,4-DCP solution. The MMIPs as-prepared were successfully applied to the separation of 2,4-DCP from environmental water samples.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）