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<p>A conceivable nano-composite of layered double hydroxide with activated carbon is produced, aimed at removing water-soluble dyes from wastewater. In this study, the Ni/Al-Layered double hydroxide is synthesized through green synthesis with an aid of neem extract using Nickel and Aluminium salts and the mixture of sodium carbonate and sodium hydroxide as precipitating agent by co-precipitation method. The thermally activated carbon from waste biomaterial such as pine apple peel and banana peel is further activated by sulphuric acid and then amalgamated with the synthesized Ni/Al-Layered Double Hydroxide results the material called Ni/Al-Layered Double Hydroxide-Activated Carbon nanocomposite. The prepared nanocomposite material’s nature, surface morphology and elemental mapping, particle size were assessed by X-Ray Diffraction pattern(XRD), Field Emission&#xa0;Scanning Electron Microscope(FESEM) with Energy Dispersive X-ray spectroscopy(EDX), CHNS analyzer, Transmission Electron Microscopy(TEM). The average particle size of the nano composite was calculated as 6.48&#xa0;nm from SEM image. From the TEM analysis, it was further confirmed by the well incorporation of activated carbon into synthesized Ni/Al-LDH structure by the occurrence of two distinct and contrasting regions like dark and light. To check its applicability as an adsorbent material for the removal of test dye which is a water soluble textile dye Methylene Blue from aqueous solution by varying adsorption conditions to get pre-eminent conditions. Response surface methodology was used and employed to optimize and model complex processes by systematically varying input variables to achieve desired outcomes, thus facilitating efficient experimentation and analysis. The efficiency of the nanocomposite for MB dye removal was evidenced with 89.28% from aqueous medium. Thus the synthesized Ni/Al-Layered Double Hydroxide-Activated carbon nanocomposite holds a promising adsorbent for the revolutionizing for sustainable environmental remediation efforts.</p>

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Eco-Friendly Green Synthesis: Harnessing Ni/Al-Layered Double Hydroxide-Activated Carbon Nanocomposite for Sustainable Environmental Remediation

  • 期刊论文

  • 发表日期：

    2025年4月16日

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  • Sangeetha Velusamy,
  • Kannan Kandasamy,
  • Manjula Rani Kuppusamy,
  • Mounika Manikandan,
  • Neha Velusami,
  • Kobika Govindasamy

摘要

A conceivable nano-composite of layered double hydroxide with activated carbon is produced, aimed at removing water-soluble dyes from wastewater. In this study, the Ni/Al-Layered double hydroxide is synthesized through green synthesis with an aid of neem extract using Nickel and Aluminium salts and the mixture of sodium carbonate and sodium hydroxide as precipitating agent by co-precipitation method. The thermally activated carbon from waste biomaterial such as pine apple peel and banana peel is further activated by sulphuric acid and then amalgamated with the synthesized Ni/Al-Layered Double Hydroxide results the material called Ni/Al-Layered Double Hydroxide-Activated Carbon nanocomposite. The prepared nanocomposite material’s nature, surface morphology and elemental mapping, particle size were assessed by X-Ray Diffraction pattern(XRD), Field Emission Scanning Electron Microscope(FESEM) with Energy Dispersive X-ray spectroscopy(EDX), CHNS analyzer, Transmission Electron Microscopy(TEM). The average particle size of the nano composite was calculated as 6.48 nm from SEM image. From the TEM analysis, it was further confirmed by the well incorporation of activated carbon into synthesized Ni/Al-LDH structure by the occurrence of two distinct and contrasting regions like dark and light. To check its applicability as an adsorbent material for the removal of test dye which is a water soluble textile dye Methylene Blue from aqueous solution by varying adsorption conditions to get pre-eminent conditions. Response surface methodology was used and employed to optimize and model complex processes by systematically varying input variables to achieve desired outcomes, thus facilitating efficient experimentation and analysis. The efficiency of the nanocomposite for MB dye removal was evidenced with 89.28% from aqueous medium. Thus the synthesized Ni/Al-Layered Double Hydroxide-Activated carbon nanocomposite holds a promising adsorbent for the revolutionizing for sustainable environmental remediation efforts.