Corrosion Resistance of Superhydrophobic Mg–Al Layered Double Hydroxide Coatings on Aluminum Alloys

Zhang, Fen; Zhang, Chang-Lei; Song, Liang; Zeng, Rong‐Chang; Cui, Lan-Yue; Cui, Hongzhi

doi:10.1007/s40195-015-0335-4

Cited by 79 publications

(29 citation statements)

References 27 publications

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“…The FB1 interaction with Mg sites had a clear impact on the O1s spectra where the main band position was shifted to higher binding energy of 531.8 ppm and the component at 532.5 ppm appeared ( Figure 12 l). This also confirms the presence of COO − moieties interacting with the LDH surface, in agreement with earlier studies [ 36 , 37 ]. Because the adsorption of FB1 takes place on the brucite-like layers, it results in structural distortions of the metal octahedra and thus the local environment of Al was is altered, as evidenced by the splitting and broadening of bands in the Al2p spectra.…”

Section: Resultssupporting

confidence: 93%

“…For the Mg2p spectra, the band with maximum in the range of 49.3–49.8 ppm can be attributed to Mg(OH) 2 typical for LDH structures ( Figure 12 a,d,g) [ 35 ]. In turn, the maxima of bands corresponding to Al(OH) 3 building the brucite-like layer are visible in the range of 73.4–73.7 ppm in the Al2p spectra [ 36 ]. The O1s spectra show two main components connected to oxygen bonded with Mg (530.4–530.9 ppm) and Al (532.1–532.5 ppm) [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

“…In turn, the maxima of bands corresponding to Al(OH) 3 building the brucite-like layer are visible in the range of 73.4–73.7 ppm in the Al2p spectra [ 36 ]. The O1s spectra show two main components connected to oxygen bonded with Mg (530.4–530.9 ppm) and Al (532.1–532.5 ppm) [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

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Fumonisin B1 Interaction with Mg-Al and Mg-Fe Layered Double Hydroxides: Removal Efficiency and Mechanisms

Matusik

Deng

2020

Materials

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Mycotoxins in feed and food are highly toxic and pose a serious danger even at very low concentrations. The use of bentonites in animal diet can reduce toxin bioavailability. However, some mycotoxins like fumonisin B1 (FB1) form anionic species which excludes the use of negatively charged clays. Layered double hydroxides (LDH) with anion-exchange properties, in theory, can be perfect candidates to adsorb FB1. However, fundamental research on the use of LDH for mycotoxins removal is scarce and incomplete. Thus, the presented study was designed to explore such a possibility. The LDH materials with differing chemistry and layer charge were synthesized by co-precipitation both from metal nitrates and chlorides and were then tested for FB1 removal. XRD, FTIR, XPS, and chemical analysis were used for the LDH characterization and to obtain insight into the removal mechanisms. A higher adsorption capacity was observed for the Mg/Al LDH samples (~0.08–0.15 mol/kg) in comparison to the Mg/Fe LDH samples (~0.05–0.09 mol/kg) with no difference in removal efficiency between Cl and NO3 intercalated LDH. The adsorption capacity increased along with lower layer charge of Mg/Al and was attributed to the lower content of bonded carbonates and the increase of non-polar sites which led to matching between the adsorption domains of LDH with FB1. The FTIR analysis confirmed the negative effect of carbonates which hampered the adsorption at pH 7 and led to the highest adsorption at pH 5 (FB1 content ~15.8 ± 0.75 wt.%). The fast surface adsorption (1–2 min) was dominant and XRD analysis of the basal spacing indicated that no FB1 intercalation occurred in the LDH. The XPS confirmed a strong interaction of FB1 with Mg sites of LDH at pH 5 where the interaction with FB1 carboxylate moieties COO− was confirmed. The research confirmed a high affinity and selectivity of LDH structures towards anionic forms of FB1 mycotoxin.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

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Fumonisin B1 Interaction with Mg-Al and Mg-Fe Layered Double Hydroxides: Removal Efficiency and Mechanisms

Matusik

Deng

2020

Materials

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“…These peaks confirm the binding of aluminum on the surface of M-AgNPs (Fig. 10c ) 48 . The O 1 s spectrum was recorded for Mentha-capped AgNPs and the Mentha-capped AgNPs in the presence of Al(III) ions.…”

Section: Resultssupporting

confidence: 66%

Mentha-Stabilized Silver Nanoparticles for High-Performance Colorimetric Detection of Al(III) in Aqueous Systems

Sharma

Dhillon

Kumar

2018

Sci Rep

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The present paper reports a facile and selective colorimetric method for the detection of potential environmental and health hazardous metal ions using green synthesized silver nanoparticles (AgNPs). Here the organic functional groups present in the plant extract (Mentha arvensis) are used as reductants and stabilizers in the synthesis of AgNPs. They also provide a suitable binding site to the (Al(III)) analyte in the detection mechanism. The leaf extract of Mentha arvensis was used to synthesize AgNPs at room-temperature and at 80 °C. The AgNPs synthesized at 80 °C exhibit excellent selective colorimetric detection of Al(III). The as-synthesized AgNPs have been characterized, and the synthesis, stabilization of NPs and detection mechanism has also been illustrated by using UV-vis, XPS, FTIR, TEM, EDX, SEM, AAS, and TGA analytical tools and techniques. The selectivity of detection probe was supported by the reaction between probe and metal ions followed first-order kinetics having the highest value of the regression coefficient (R2 = 0.99) for Al(III) and the analysis of thermodynamic parameters. The prepared sensor showed a lower limit of detection (LOD) of 1 nM (S/N = 3.2) in real water samples. The proposed method can be successfully utilized for the detection of Al(III) from both drinking and real water samples at the nanomolar level.

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“…An enhancement in the absorption was observed around 350 nm for the ZnS QDs‐LDH hybrid, which is an indication of the hybrid formation. The optical band gaps of the prepared samples were calculated by Tauc's relation, which demonstrates a relationship between the absorption coefficient and the incident photon energy of semiconductors . The calculated band gap values of ZnS QDs, LDH, and ZnS QDs‐LDH hybrid are 4.2, 2.17 and 2.78 eV.…”

Section: Resultsmentioning

confidence: 96%

Photocatalytic Performance on Visible Light Induced ZnS QDs‐MgAl Layered Double Hydroxides Hybrids for Methylene Blue Dye Degradation

et al. 2018

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Semiconductor hybrids based photocatalytic reaction is one of the prominent methods to treat wastewater, containing the organic pollutants. In the present work, we report the development of ZnS QDs-LDH hybrid structure for the photocatalytic treatment of methylene blue (MB) dye. The as-synthesized ZnS QDs-LDH hybrid structure was characterized by XRD, FESEM, HRTEM, EDX, XPS, and FTIR to analyze the formation, morphology and chemical structure. The UV-Vis DRS was used to investigate the optical absorption characteristics of the ZnS QDs-LDH hybrid. The photocatalytic performance of the asprepared samples was investigated against the methylene blue dye molecule under UV-Vis light irradiation. The scavenging experiments were carried out in order to probe the radical formation by using EDTA, benzoquinone, and 2-proponal. The cycling experiments were performed to check the stability of the ZnS QDs-LDH hybrid photocatalyst after repeated photodegradation experiments.

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Corrosion Resistance of Superhydrophobic Mg–Al Layered Double Hydroxide Coatings on Aluminum Alloys

Cited by 79 publications

References 27 publications

Fumonisin B1 Interaction with Mg-Al and Mg-Fe Layered Double Hydroxides: Removal Efficiency and Mechanisms

Fumonisin B1 Interaction with Mg-Al and Mg-Fe Layered Double Hydroxides: Removal Efficiency and Mechanisms

Mentha-Stabilized Silver Nanoparticles for High-Performance Colorimetric Detection of Al(III) in Aqueous Systems

Photocatalytic Performance on Visible Light Induced ZnS QDs‐MgAl Layered Double Hydroxides Hybrids for Methylene Blue Dye Degradation

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