Instrumental Characterization of Unmodified and HDTMA-Br Modified Kaolinite Clay: SEM-EDX, Quantachrome and TGA-DTA

Aroke, Umar Omeiza; Hamidu, Lucas Albert Jerome

doi:10.22178/pos.59-1

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…The crystallize sizes calculated by using DS and WH equations (Eqs 3-5; In addition to that, Al, Si, and K account for 15.16, 15.45, and 0.37%, respectively, with some amount of C (7.31%). The composition of KC is in accordance with the elemental composition of commercial kaolinite reported in literature [30]. Similarly, the EDX of VC (Fig 5D ) confirms the presence of O, Mg, Al, Si, Fe, and C with %weight, which is in accordance with the previous studies [31].…”

Section: Plos Onesupporting

confidence: 91%

Biochar supported metallo-inorganic nanocomposite: A green approach for decontamination of heavy metals from water

Khalid,

Chaudhary,

Nazir

et al. 2023

PLoS ONE

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Heavy metal contamination of water has become a global environmental burden, which has stirred up agitation worldwide. Fabrication of adsorbents utilizing either low cost, environment friendly materials or waste products can be helpful in remediating environmental pollution. The current study evolved around the synthesis of nanocomposites derived from such raw precursors like spent tea waste biochar, hydroxyapatite, and clays. In this context, two nanocomposites, namely manganese ferrite doped hydroxyapatite/kaolinite/biochar (TK-NC) and manganese ferrite doped hydroxyapatite/vermiculite/biochar (TV-NC), were synthesized followed by their employment for decontamination of heavy metals from aqueous media. TK-NC and TV-NC exhibited the crystallite sizes in the range of 2.55–5.94 nm as obtained by Debye Scherrer Equation and Williamsons–Hall equation The fabricated nanocomposites were characterized using FT-IR, SEM-EDX, and powder XRD. Batch adsorption studies were performed, and influence of different adsorption parameters (contact time, reaction temperature, solution pH, adsorbent dose, and initial adsorbate concentration) on metal adsorption was examined. Thermodynamic studies revealed that the adsorption of Cr(VI), Ni(II) and Cu(II) on TK-NC and TV-NC was endothermic (+ΔH°) and indicates disorderness (+ΔS°) at the solid-liquid interface owing to the strong affinity of metal ions with adsorbent. The heavy metal uptake selectivity followed the following decreasing order; Cr(VI) > Cu(II) > Ni(II) by both nanocomposites, with adsorption capacities falling in the range of 204.68–343.05 mg g-1. Several adsorption kinetic and isotherm models were applied to experimentally calculated data, which suggest favorable adsorption of Cr(VI), Ni(II) and Cu(II) by TK-NC and TV-NC from the system while obeying general-order kinetics and R-P adsorption model, conferring the transition in adsorption kinetics order and involvement of multiple adsorption process.

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Section: Plos Onesupporting

confidence: 91%

Biochar supported metallo-inorganic nanocomposite: A green approach for decontamination of heavy metals from water

Khalid,

Chaudhary,

Nazir

et al. 2023

PLoS ONE

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“…Water contamination is a result of contamination from natural and anthropogenic activities [2]. The primary types of pollutants found in sewage wastewater include biodegradable organic compounds, volatile organic compounds, metal ions, suspended solids, nutrients like phosphorous (P) and nitrogen (N), microbial pathogens, and parasites [3].…”

Section: Introductionmentioning

confidence: 99%

kaolin and their application in removing heavy metals ions from real municipal wastewater.

faisle,

El- Rabiei,

farghali

et al. 2023

Labyrinth: Fayoum Journal of Science and Interdisciplinary Stud

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The global demand for clean water is greater than ever before, necessitating improved water treatment technology. According to the World Health Organization, each year, 2.2 million individuals lose their lives to diseases related to diarrhea, with many of these cases which caused by waterborne infections. Kaolin clay minerals, specifically those which belonging to the smectite group, that have a wide range of applications in the environment, chemical, industrial and other sectors. This paper focuses on the use of naturally occurring kaolin clay in batch experiments to assess its efficiency in removing Fe, Cu, Cr, and Zn ions heavy metals from real municipal wastewater. The results indicate that kaolin clay demonstrates effective removal efficiencies across different concentration ranges and pH levels ranging from 3 to 12. For the initial treatment, the maximum recovery efficiencies that reach79%, 96%, 75%, and 100% for Fe, Cu, Cr, and Zn respectively for the first treatment.

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Instrumental Characterization of Unmodified and HDTMA-Br Modified Kaolinite Clay: SEM-EDX, Quantachrome and TGA-DTA

Cited by 2 publications

References 5 publications

Biochar supported metallo-inorganic nanocomposite: A green approach for decontamination of heavy metals from water

Biochar supported metallo-inorganic nanocomposite: A green approach for decontamination of heavy metals from water

kaolin and their application in removing heavy metals ions from real municipal wastewater.

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