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<p>A prospective approach has been developed for the process of removal of thiocyanate in water by using Copper oxide nanoparticles (CuO NPs). Notably the said adsorbent having more efficacies in due course of thiocyanate removal. Moreover, copper nanoparticles were synthesized using Glochidium Tomentosum (GT) bark extract. The preparation of GT-CuO NPs is eco-friendly; hence this method is pondered as green synthesis. The formation of nanoparticles has been revealed by UV–Vis and FTIR spectral studies, and crystallinity of the nanoparticles from X-ray diffraction pattern. The images produced by SEM and TEM analysis unveil that GT-CuO NPs are formed with a size less than 100&#xa0;nm and approximately spherical shaped. The removal efficiency of thiocyanate through these CuO NPs is affected by various factors, such as initial thiocyanate concentration, contact time and adsorbent dosage. The results of the present study revealed that the optimum conditions for thiocyanate adsorption onto green-synthesized GT-CuO NPs were achieved within a contact time of 50–60&#xa0;min. Hence the results affirm that the GT-CuO NPs can be used as a promising approach for thiocyanate reduction from waste water with optimal results and a maximum removal efficiency of 91% was achieved. Antioxidant capacity of 60.33 ± 0.02%, for a concentration of 50&#xa0;µg/ml GT-CuO NPs was studied by free radical scavenging assay of DPPH using UV–Vis spectrophotometer.</p> Graphical abstract <p>Proposed mechanism of fabricated GT-CuO nanoparticles</p> <p></p>

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Glochidium tomentosum mediated synthesis of copper oxide nanoparticles for effective degradation of thiocyanates and their antioxidant activity

  • 期刊论文

  • 发表日期：

    2025年6月11日

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  • Durga Praveena Veera,
  • K. Vijaya Kumar,
  • G. Tejaswini,
  • B. Venkata Rao

摘要

A prospective approach has been developed for the process of removal of thiocyanate in water by using Copper oxide nanoparticles (CuO NPs). Notably the said adsorbent having more efficacies in due course of thiocyanate removal. Moreover, copper nanoparticles were synthesized using Glochidium Tomentosum (GT) bark extract. The preparation of GT-CuO NPs is eco-friendly; hence this method is pondered as green synthesis. The formation of nanoparticles has been revealed by UV–Vis and FTIR spectral studies, and crystallinity of the nanoparticles from X-ray diffraction pattern. The images produced by SEM and TEM analysis unveil that GT-CuO NPs are formed with a size less than 100 nm and approximately spherical shaped. The removal efficiency of thiocyanate through these CuO NPs is affected by various factors, such as initial thiocyanate concentration, contact time and adsorbent dosage. The results of the present study revealed that the optimum conditions for thiocyanate adsorption onto green-synthesized GT-CuO NPs were achieved within a contact time of 50–60 min. Hence the results affirm that the GT-CuO NPs can be used as a promising approach for thiocyanate reduction from waste water with optimal results and a maximum removal efficiency of 91% was achieved. Antioxidant capacity of 60.33 ± 0.02%, for a concentration of 50 µg/ml GT-CuO NPs was studied by free radical scavenging assay of DPPH using UV–Vis spectrophotometer.

Graphical abstract

Proposed mechanism of fabricated GT-CuO nanoparticles