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In this study, nitrogen-doped graphitic carbon nitride (N/g-C3N4) was synthesized by thermal polymerization method and characterized by XRD, FTIR, and FESEM analysis. The efficiency in adsorbing methyl green (MG) dye using N/g-C3N4 as an adsorbent was assessed. Different parameters like adsorbent dosage, initial dye concentration, and initial pH affecting the adsorption efficiency was studied. From the experimental studies, it was noticed that, the increase in dose of N/g-C3N4 led to improved adsorption of the dye, reaching a maximum adsorption around 100% for 10 mg/L only after 30 min of reaction time with an adsorbent dose of 1 g/L. Conversely, as the concentration of MG dye increased at a constant adsorbent dosage of 1 g/L, the adsorption efficiency decreased. Moreover, higher pH level (pH = 11) was found to correspond to greater adsorption of the dye. The efficiency of N/g-C3N4 in adsorbing MG dye was notable, with negligible adsorption observed in the absence of the adsorbent.

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Removal of Methyl Green Dye by Adsorption Using Nitrogen-Doped Graphitic Carbon Nitride

  • 会议论文

  • 发表日期：

    2026年

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  • Subhalaxmi Sahoo,
  • Jadhav Aishwarya,
  • Prateeksha Mahamallik

摘要

In this study, nitrogen-doped graphitic carbon nitride (N/g-C3N4) was synthesized by thermal polymerization method and characterized by XRD, FTIR, and FESEM analysis. The efficiency in adsorbing methyl green (MG) dye using N/g-C3N4 as an adsorbent was assessed. Different parameters like adsorbent dosage, initial dye concentration, and initial pH affecting the adsorption efficiency was studied. From the experimental studies, it was noticed that, the increase in dose of N/g-C3N4 led to improved adsorption of the dye, reaching a maximum adsorption around 100% for 10 mg/L only after 30 min of reaction time with an adsorbent dose of 1 g/L. Conversely, as the concentration of MG dye increased at a constant adsorbent dosage of 1 g/L, the adsorption efficiency decreased. Moreover, higher pH level (pH = 11) was found to correspond to greater adsorption of the dye. The efficiency of N/g-C3N4 in adsorbing MG dye was notable, with negligible adsorption observed in the absence of the adsorbent.