BibTex Citation Data :
@article{Presipitasi67493, author = {Muchammad Tamyiz and Maulana Annafis and Ahza Dhafa and Muhammad Bulloh and Mohd Pisal}, title = {Unleashing the Power of Oxygen-Doped Graphitic Carbon Nitride: Enhancing Neutral Red Removal Efficiency}, journal = {Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan}, volume = {22}, number = {1}, year = {2025}, keywords = {Adsorption; g-C3N4; heterogeneous; neutral red; photocatalysis}, abstract = { Textile industry wastewater often contains persistent pollutants like neutral red dye, which are challenging to break down and harmful to ecosystems. This study introduces oxygen-doped graphitic carbon nitride (O-g-C3N4) as a photocatalyst to degrade neutral red dye under visible light. Synthesized using a single-step calcination of urea, dicyandiamide, and oxalic acid, O- g-C3N4 was tested for its efficiency in neutral red removal through adsorption and photocatalytic degradation, both in light and dark conditions. Results showed that O- g-C3N4 quickly adsorbed the dye, reaching equilibrium in 30 minutes and achieving a maximum adsorption capacity of 1.86 mg g-1, surpassing bulk g-C3N4. Kinetic analysis indicated that adsorption followed a pseudo-second-order model, suggesting chemisorption as the primary mechanism. Under visible light, O- g-C3N4’s photocatalytic degradation reached 86% neutral red removal, compared to 51% with bulk g-C3N4, largely due to improved light absorption and reduced electron-hole recombination. Degradation of neutral red followed pseudo-first-order kinetics, with O- g-C3N4’s reaction rate three times greater than bulk g-C3N4. The Sips isotherm best fit the adsorption data, confirming heterogeneous active sites and multilayer adsorption. These findings highlight O- g-C3N4’s potential for environmental remediation. }, issn = {2550-0023}, pages = {69--80} doi = {10.14710/presipitasi.v22i1.69-80}, url = {https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67493} }
Refworks Citation Data :
Textile industry wastewater often contains persistent pollutants like neutral red dye, which are challenging to break down and harmful to ecosystems. This study introduces oxygen-doped graphitic carbon nitride (O-g-C3N4) as a photocatalyst to degrade neutral red dye under visible light. Synthesized using a single-step calcination of urea, dicyandiamide, and oxalic acid, O- g-C3N4 was tested for its efficiency in neutral red removal through adsorption and photocatalytic degradation, both in light and dark conditions. Results showed that O- g-C3N4 quickly adsorbed the dye, reaching equilibrium in 30 minutes and achieving a maximum adsorption capacity of 1.86 mg g-1, surpassing bulk g-C3N4. Kinetic analysis indicated that adsorption followed a pseudo-second-order model, suggesting chemisorption as the primary mechanism. Under visible light, O- g-C3N4’s photocatalytic degradation reached 86% neutral red removal, compared to 51% with bulk g-C3N4, largely due to improved light absorption and reduced electron-hole recombination. Degradation of neutral red followed pseudo-first-order kinetics, with O- g-C3N4’s reaction rate three times greater than bulk g-C3N4. The Sips isotherm best fit the adsorption data, confirming heterogeneous active sites and multilayer adsorption. These findings highlight O- g-C3N4’s potential for environmental remediation.
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