Journal
MATERIALS
Volume 10, Issue 7, Pages -Publisher
MDPI AG
DOI: 10.3390/ma10070760
Keywords
adsorption; magadiite; cationic clay; methylene blue; remediation
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Funding
- King Abdulaziz University, Jeddah [130-777-D1435]
- DSR
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The removal of methylene blue (MB) dye from water was investigated using synthetic nano-clay magadiite (SNCM). SNCM was synthesized by a hydrothermal treatment under autogenous pressure. A rosette-shaped single mesoporous magadiite phase with 16.63 nm average crystallite size and 33 m(2).g(-1) Braunauer-Emmet-Teller (BET)-surface area was recorded. The adsorption results indicated the pronounced affinity of the SNCM to the MB dye molecules, which reached an adsorption uptake of 20.0 mg MB dye/g of SNCM. The elimination of MB dye by the SNCM was kinetically and thermodynamically considered; a pseudo-second-order kinetic model was attained, and its spontaneous, chemical, and endothermic nature was verified. SNCM was shown to be robust without a detectable reduction in the adsorption capacity after up to four times re-use.
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