Development of electrochemical sensor based on layered double hydroxide as a marker of environmental toxin

Khan, Sher Bahadar; Asiri, Abdullah M.; Akhtar, Kalsoom; Rub, Malik Abdul

doi:10.1016/j.jiec.2015.05.027

Cited by 13 publications

(5 citation statements)

References 29 publications

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“…Salt of Cd and Al nitrate were well mixed in double distilled water and then mixed with activated carbon through co-precipitation method192829. Briefly salt of Al(NO 3 ) 3 and Cd(NO 3 ) 2 were dissolved thoroughly in double distilled water in 1:3 molar ratio.…”

Section: Methodsmentioning

confidence: 99%

Layered double hydroxide of Cd-Al/C for the Mineralization and De-coloration of Dyes in Solar and Visible Light Exposure

Khan

Asiri

2016

Sci Rep

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Cd-Al/C layered double hydroxide (Cd-Al/C-LDH) and Cd-Sb/C nanocatalyst are reported here for the de-coloration and mineralization of organic dyes. These catalysts were largely characterized by FESEM, EDS, XRD, FTIR, XPS, PL and DRS. The diffuse reflectance data showed a band gap at 2.92 and 2.983 eV for Cd-Al/C-LDH and Cd-Sb/C respectively. The band gap suggested that both catalysts work well in visible range. The photoluminescence spectra indicated a peak at 623 nm for both the catalysts which further support the effectiveness of the respective catalyst in visible range. Both catalysts also showed good recyclability and durability till 4th cycle. Five dyes, acridine orange (AO), malachite green (MG), crystal violet (CV), congo red (CR) and methyl orange (MO) were used in this experiment. Various parameters of different light intensity such as visible, ultraviolet, sunlight and dark condition are observed for the de-coloration of these dyes. The de-coloration phenomenon was proceeded through adsorption assisted phot-degradation. The low cost, abundant nature, good recyclability and better dye removal efficiency make these catalysts suitable candidates for the de-coloration and mineralization of organic dyes.

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Section: Methodsmentioning

confidence: 99%

Layered double hydroxide of Cd-Al/C for the Mineralization and De-coloration of Dyes in Solar and Visible Light Exposure

Khan

Asiri

2016

Sci Rep

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“…According to it, the sample is represented by hexagonal plate-like particles. LDH crystals are known to grow faster in a or b axis directions and plate-like morphology was observed for multiple LDH of different composition [2,4,[8][9][10]17].…”

Section: Sample Morphologymentioning

confidence: 99%

“…Interest in this class of compounds remains rather high for a long time due to a wide range of their unique properties [1,2]. Layered double hydroxides have potential applications in catalysis [3,4], drug delivery [5], waste treatment [6], energy storage devices [7], and sensors [8]. The ability of LDHs to vary widely cationic and anionic composition allows obtaining materials with predetermined properties [2].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and thermal behavior of Co/AlCe layered double hydroxide

Golovin

Yapryntsev

Рыльцова

et al. 2021

Solid State Sciences

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Cerium-containing cobalt-aluminum layered double hydroxide was successfully synthesized via coprecipitation followed by hydrothermal treatment. Molar ratios of metal cations were predetermined as following: Co 2+ /(Al 3+ + Ce 3+ ) = 3 and Ce 3+ /(Al 3+ + Ce 3+ ) = 0.05. According to X-ray diffraction data, the obtained sample was well crystallized single-phase product with a hydrotalcite-like structure. The presence of cerium was confirmed by elemental analysis. The synthesized material consisted of hexagonal plate-like particles with an average size of 277 nm. The study of thermal behavior showed that the compound decomposed with the formation of oxides mixture, which is typical for layered double hydroxides. Its rehydration ability was expressed very weakly and the "memory effect" was observed only after heat treatment at a temperature not higher than 200 • C.

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“…Nanoscale electrode materials control the sensitivity and selectivity of the sensors based on the size effect and high electron transfer area. 116 Different electrode materials and electrode surfaces have been designed to adsorb ECCs and to enhance the electron transfer and electrochemical signals.…”

Section: Electrochemical Sensingmentioning

confidence: 99%

“…The sensor was applied in the detection of thiourea in water samples with high sensitivity (1.004 mA mM cm À2 ), low LODs (8.4 mM), and high selectivity. 116…”

Section: Electrochemical Sensingmentioning

confidence: 99%

Recent progress in the application of nanomaterials in the analysis of emerging chemical contaminants

et al. 2017

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Development of electrochemical sensor based on layered double hydroxide as a marker of environmental toxin

Cited by 13 publications

References 29 publications

Layered double hydroxide of Cd-Al/C for the Mineralization and De-coloration of Dyes in Solar and Visible Light Exposure

Layered double hydroxide of Cd-Al/C for the Mineralization and De-coloration of Dyes in Solar and Visible Light Exposure

Synthesis and thermal behavior of Co/AlCe layered double hydroxide

Recent progress in the application of nanomaterials in the analysis of emerging chemical contaminants

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