2023
DOI: 10.3390/su151712939
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Removal Efficiency and Adsorption Kinetics of Methyl Orange from Wastewater by Commercial Activated Carbon

Gabriel Valentin Serban,
Vasile Ion Iancu,
Cristina Dinu
et al.

Abstract: This research investigates commercial activated carbon (AC) potential to remove methyl orange (MO) dye removal from aqueous solution using a batch process. The AC material was characterized using FTIR spectroscopy and SEM analysis. The effect of the main operating parameters, such as the pH, adsorbent dosage, contact time, and initial dye concentration, was studied. MO removal could be accomplished within 30 min at a pH value of 3. The calculated maximum MO adsorption capacity onto activated carbon was 129.3 m… Show more

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Cited by 29 publications
(9 citation statements)
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“…On the other hand, methyl orange dye molecules can interact with –NH2 groups forming covalent and semi-covalent bonds. Additionally, the formation peaks like 2679.24 cm −1 , the diminishing of hydroxide groups (3329 cm −1 ) as well as the shifting of various functional group signifying peaks like (2132–2114 cm −1 , 1728 to 1710 cm −1 , 2306 to 2270 cm −1 , 1022 to 1051 cm −1 ) would indicate the interaction between the adsorbate and adsorbent where various functional groups played crucial role [ 82 , [99] , [100] , [101] ].…”
Section: Resultsmentioning
confidence: 99%
“…On the other hand, methyl orange dye molecules can interact with –NH2 groups forming covalent and semi-covalent bonds. Additionally, the formation peaks like 2679.24 cm −1 , the diminishing of hydroxide groups (3329 cm −1 ) as well as the shifting of various functional group signifying peaks like (2132–2114 cm −1 , 1728 to 1710 cm −1 , 2306 to 2270 cm −1 , 1022 to 1051 cm −1 ) would indicate the interaction between the adsorbate and adsorbent where various functional groups played crucial role [ 82 , [99] , [100] , [101] ].…”
Section: Resultsmentioning
confidence: 99%
“…Sua alta capacidade adsortiva é resultante da alta área superficial porosa e da presença de uma variedade de grupos funcionais contidos em sua superfície (Sujiono et al, 2022). A aplicação desse material tem sido bastante empregada na adsorção de metais pesados em interfaces líquidas e tem apresentado apreciável eficiência para a remoção de substâncias orgânicas, principalmente de espécies que alteram a cor de efluentes (Serban et al, 2023).…”
Section: Propriedadesunclassified
“…Esse comportamento foi observado por Uddin et al (2009) que avaliaram a adsorção do corante através de resíduos de chá e constataram que o percentual de remoção e a concentração do adsorvato na superfície do sólido poroso sofreram influência da massa de adsorvente. Serban et al (2023) verificaram o mesmo perfil, confirmando, portanto, a existência do efeito da massa de adsorvente sob as variáveis avaliadas. A explicação para a redução da capacidade máxima de adsorção pode ser atribuída ao fato de que o aumento da massa também pode fazer com que alguns sítios presentes na superfície do material não sejam ocupados por não serem energeticamente favoráveis, diminuindo assim o valor de qt (Antunes et al, 2018).…”
Section: Fonte: Autores (2023)unclassified