Activated carbon from mustard stalk biomass: Synthesis, characterization and application in wastewater treatment Scientific paper

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Kalpana Patidar
Manish Vashishtha


Present work is focused on the preparation of mustard stalk activated carbon (MSAC) using chemical activation with H3PO4 and exploring its pro­perties for its use in dye removal from wastewater. Adsorption variable (dos­age, contact time, and solution pH), pore structure, morphology, surface func­tional groups, equilibrium kinetics and isotherm study for the removal of meth­ylene blue (MB) using MSAC were investigated. The present study showed that an adsorption dosage of 0.2 g L-1 and pH 8 can be considered as optimum for the MB removal. SEM result showed that pore of MSAC was larger than the pore of the mustard stalk (MS). BET surface area and total pore volume of MSAC were found as 510 m2 g-1 and 0.33 cm3 g-1, respectively. Equilibrium adsorption data were examined by Langmuir and Freundlich isotherm models. Better correspondence to the Langmuir model with a maximum adsorption capacity of 212.76 mg g-1 (MB onto MSAC) was obtained. Dimensionless factor, RL revealed favourable nature of the sorption in the MSAC–MB sys­tem. Adsorption rates were found to follow the pseudo-second-order kinetics with good correlation. These results show that the MSAC could be used as a renew­able and economical alternative to commercial activated carbon in the removal of MB dye from wastewater.

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How to Cite
K. Patidar and M. Vashishtha, “Activated carbon from mustard stalk biomass: Synthesis, characterization and application in wastewater treatment: Scientific paper”, J. Serb. Chem. Soc., vol. 86, no. 4, pp. 429-444, Apr. 2021.
Chemical Engineering


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