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<p>The present study equips sonochemical synthesis of Sr<sub>2</sub>V<sub>2</sub>O<sub>7</sub> (SVO) nanoparticles with carbon coating’s impact to destroy the solutions polluted with hazardous contaminants including rhodamine B (RhB), methylene blue (MB), and methyl orange (MO) under visible-light radiation. Using diverse amine templates with dual functionality of precipitation/capping agent in sono-reaction, identification techniques exhibited morphologically desirable and triclinic SVO sample in the presence of teta, which had a mean of 72.08&#xa0;nm and specific surface area of 14.621 m<sup>2</sup>/g. To minimize charge recombination, increase in surface area/photoactive sites, and shift toward a larger wavelength window, the incorporation of different carbon structures on the SVO surface was perused. Particularly, detailed photodegradation investigations followed the order of MO &lt; MB &lt; RhB with maximum efficiency for binary SVO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites as compared with other as-obtained SVO-based compounds. Photo-operational variables in starting RhB concentration and catalyst dosage offered that 89.39% degradation could result in 50&#xa0;mg of SVO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites and 10&#xa0;ppm dye within 120&#xa0;min of visible irradiation. High photo-durability of resultant SVO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites showed five time regeneration process with only 14.39% reduction in activity. It is hoped that the effectiveness of the photocatalytic heterostructure’s design based on SVO nanoparticles and g-C<sub>3</sub>N<sub>4</sub> nanosheets could be contributed in regulating the interface charge transfer pathway for environmental clean-up.</p>

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Architecting diverse carbonous nanocomposites of Sr2V2O7 for enhanced photodegradation potential of organic pollutants: sonochemical synthesis, characterization, optimization of conditions and mechanisms

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月5日

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  • Hajar Jafari,
  • Rozita Monsef,
  • Elmuez A. Dawi,
  • Forat H. Alsultany,
  • Rouhollah Mirzaei,
  • Masoud Salavati-Niasari

摘要

The present study equips sonochemical synthesis of Sr2V2O7 (SVO) nanoparticles with carbon coating’s impact to destroy the solutions polluted with hazardous contaminants including rhodamine B (RhB), methylene blue (MB), and methyl orange (MO) under visible-light radiation. Using diverse amine templates with dual functionality of precipitation/capping agent in sono-reaction, identification techniques exhibited morphologically desirable and triclinic SVO sample in the presence of teta, which had a mean of 72.08 nm and specific surface area of 14.621 m2/g. To minimize charge recombination, increase in surface area/photoactive sites, and shift toward a larger wavelength window, the incorporation of different carbon structures on the SVO surface was perused. Particularly, detailed photodegradation investigations followed the order of MO < MB < RhB with maximum efficiency for binary SVO/g-C3N4 nanocomposites as compared with other as-obtained SVO-based compounds. Photo-operational variables in starting RhB concentration and catalyst dosage offered that 89.39% degradation could result in 50 mg of SVO/g-C3N4 nanocomposites and 10 ppm dye within 120 min of visible irradiation. High photo-durability of resultant SVO/g-C3N4 nanocomposites showed five time regeneration process with only 14.39% reduction in activity. It is hoped that the effectiveness of the photocatalytic heterostructure’s design based on SVO nanoparticles and g-C3N4 nanosheets could be contributed in regulating the interface charge transfer pathway for environmental clean-up.