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<p>Dyes are a significant contributor to water pollution; therefore, effective removal methods are necessary to ensure environmental safety and water purification. Biopolymer-based films provide a sustainable and economical solution for dye adsorption, with research increasingly focused on modifying surface features to enhance dye-film interaction. However, the potential of acryloyloxy tamarind kernel powder (ARTKP)-based nanometallic film for dye adsorption remains underexplored. This study addresses the existing research gap by developing an eco-friendly nanometallic film (ENMF) with a super-adsorptive surface for effective dye molecule adhesion and enhanced UV absorption capacity. The adsorptive ENMF was fabricated via the solvent casting method through <i>ex</i>-<i>situ</i> incorporation of TiO<sub>2</sub> nanoparticles into the ARTKP/GG matrix. Experimental and analytical evaluation confirmed that the ENMF exhibits significantly enhanced properties, including an increase in thermal stability and crystallinity, compared to ARTKP biocomposites. ENMF demonstrated a strong adsorption capacity for the methylene blue dye, exhibiting pseudo-first-order kinetics behaviour. It also showed remarkable UV absorption efficiency and efficient biodegradability. These results highlight the ARTKP/GG@TiO<sub>2</sub> ENMF’s potential as a material that holds promise for removing dyes from the aquatic environment.</p> Graphical abstract <p> A novel ARTKP/GG@TiO<sub>2</sub> eco-friendly nanometallic film (ENMF) was developed via solvent casting with <i>ex-situ</i> TiO<sub>2</sub> NPs incorporation. The ENMF exhibits efficient photocatalytic adsorption of methylene blue dye and strong UV absorption in aqueous media, highlighting its potential as a sustainable, multifunctional material for advanced wastewater treatment applications.</p>

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Synthesis of novel acryloyloxy tamarind kernel-TiO2 nanocomposite film for photocatalytic removal of dye and UV absorption

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • Sakshi Saini,
  • Deepankar Singh Rawat,
  • Rajdeep Malik,
  • Sachin Kumar,
  • Sandeep Kumar,
  • Jagram Meena

摘要

Dyes are a significant contributor to water pollution; therefore, effective removal methods are necessary to ensure environmental safety and water purification. Biopolymer-based films provide a sustainable and economical solution for dye adsorption, with research increasingly focused on modifying surface features to enhance dye-film interaction. However, the potential of acryloyloxy tamarind kernel powder (ARTKP)-based nanometallic film for dye adsorption remains underexplored. This study addresses the existing research gap by developing an eco-friendly nanometallic film (ENMF) with a super-adsorptive surface for effective dye molecule adhesion and enhanced UV absorption capacity. The adsorptive ENMF was fabricated via the solvent casting method through ex-situ incorporation of TiO2 nanoparticles into the ARTKP/GG matrix. Experimental and analytical evaluation confirmed that the ENMF exhibits significantly enhanced properties, including an increase in thermal stability and crystallinity, compared to ARTKP biocomposites. ENMF demonstrated a strong adsorption capacity for the methylene blue dye, exhibiting pseudo-first-order kinetics behaviour. It also showed remarkable UV absorption efficiency and efficient biodegradability. These results highlight the ARTKP/GG@TiO2 ENMF’s potential as a material that holds promise for removing dyes from the aquatic environment.

Graphical abstract

A novel ARTKP/GG@TiO2 eco-friendly nanometallic film (ENMF) was developed via solvent casting with ex-situ TiO2 NPs incorporation. The ENMF exhibits efficient photocatalytic adsorption of methylene blue dye and strong UV absorption in aqueous media, highlighting its potential as a sustainable, multifunctional material for advanced wastewater treatment applications.