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<p>Crystal violet dye poses serious environmental and health risks due to its toxic and bioaccumulative nature. This study introduces novel SrCrO<sub>4</sub>/MgO/SrCO<sub>3</sub>/C (A500) and Sr<sub>2</sub>CrO<sub>4</sub>/MgO/SrCrO<sub>4</sub>/C (A700) nanocomposites synthesized via the Pechini sol-gel method at 500 and 700 <sup>o</sup>C, respectively. Structural and morphological characterizations confirmed successful formation of the nanocomposites with crystallite sizes of 50.64&#xa0;nm (A500) and 58.39&#xa0;nm (A700). The A500 and A700 samples demonstrated superior adsorption performance, achieving a maximum capacity of 296.74 and 279.33&#xa0;mg/g, respectively. Adsorption was physical, exothermic, spontaneous, and fitted well with the Langmuir isotherm and pseudo-first-order kinetic model.</p>

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Simple Fabrication of SrCrO4/MgO-Derived Hybrid Nanocomposites for Effective Crystal Violet Dye Adsorption from Aqueous Solutions

  • 期刊论文

  • 发表日期：

    2025年5月16日

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  • Ehab A. Abdelrahman

摘要

Crystal violet dye poses serious environmental and health risks due to its toxic and bioaccumulative nature. This study introduces novel SrCrO4/MgO/SrCO3/C (A500) and Sr2CrO4/MgO/SrCrO4/C (A700) nanocomposites synthesized via the Pechini sol-gel method at 500 and 700 oC, respectively. Structural and morphological characterizations confirmed successful formation of the nanocomposites with crystallite sizes of 50.64 nm (A500) and 58.39 nm (A700). The A500 and A700 samples demonstrated superior adsorption performance, achieving a maximum capacity of 296.74 and 279.33 mg/g, respectively. Adsorption was physical, exothermic, spontaneous, and fitted well with the Langmuir isotherm and pseudo-first-order kinetic model.