<p>This study the synthesis of undoped and Zn,N-doped carbon quantum dots (Zn,N-BCDs) utilizing banana peel biowaste via a hydrothermal method. The graphitic structure, size distribution, surface characteristics, and fluorescence properties of CDs were characterized by various techniques. Further, their efficacy in mitigating MS corrosion in a 15% HCl solution was analyzed using methods such as weight loss, OCP, EIS, and PDP measurements. Results revealed that both types of CDs exhibited inhibition properties against MS corrosion, with Zn,N-CDs demonstrating superior effectiveness, particularly at lower concentrations. Undoped and Zn,N-BCDs displayed inhibition efficiencies of 96.1% at 400&#xa0;ppm and 98.7% at 200&#xa0;ppm at 313&#xa0;K, respectively, with temperature influencing their performance. XPS and FTIR studies confirmed the adsorption of CDs on the MS surface.</p> Graphical Abstract <p></p>

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Assessment of Anticorrosive Application of Biomass-Derived Carbon Quantum Dots for Mild Steel in 15% HCl Solution: Chemical and Electrochemical Studies

  • Ruby Aslam,
  • Xiaofeng Sun,
  • Jinmei Zhao,
  • Qihui Wang,
  • Zhitao Yan

摘要

This study the synthesis of undoped and Zn,N-doped carbon quantum dots (Zn,N-BCDs) utilizing banana peel biowaste via a hydrothermal method. The graphitic structure, size distribution, surface characteristics, and fluorescence properties of CDs were characterized by various techniques. Further, their efficacy in mitigating MS corrosion in a 15% HCl solution was analyzed using methods such as weight loss, OCP, EIS, and PDP measurements. Results revealed that both types of CDs exhibited inhibition properties against MS corrosion, with Zn,N-CDs demonstrating superior effectiveness, particularly at lower concentrations. Undoped and Zn,N-BCDs displayed inhibition efficiencies of 96.1% at 400 ppm and 98.7% at 200 ppm at 313 K, respectively, with temperature influencing their performance. XPS and FTIR studies confirmed the adsorption of CDs on the MS surface.

Graphical Abstract