The Adsorption of Eriochrome Black T onto the Activated Carbon Produced from Pepper Stalks

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Journal of Engineering Technology and Applied Sciences
Volume:8 Issue:2
The Adsorption of Eriochrome Black T onto the Activated Carbon Produced from Pepper Stalks

The Adsorption of Eriochrome Black T onto the Activated Carbon Produced from Pepper Stalks

Pages : 107-118

View : 39 | Download : 25

Publication Date : 2023-08-31

Article Type : Research Paper

Abstract :The aim of this paper is to present the evaluation of the adsorption of Eriochrome Black T insert ignore into journalissuearticles values(EBT); on the activated carbon insert ignore into journalissuearticles values(trH-BS); produced from pepper stalk by activating with 50% phosphoric acid solution insert ignore into journalissuearticles values(H3PO4); and then by carbonizing at 650 oC for 30 min. in atmosphere of nitrogen insert ignore into journalissuearticles values(N2); was presented. The isotherm of trH-BS was Type IV, representing micro, meso and macroporous structures. The micropore volume and micropore surface area values of trH-BS were 0.39 cc/g and 1107.294 m2/g, respectively. Also, its meso and macropores had a volume of about 15-17 cc/g and an average surface area of 400 m2/g. The adsorption energy was 18.156 kJ/mol and the BET surface area was 756.257 m2/g. Depending on Langmuir parameters, monolayer capacity was determined as 55,56 mg/g. the enthalpy change was calculated as 30.78 kJ/mol. The structure of trH-BS was clarified structurally and morphologically and the formations like nano rod were seen at Scanning Electron Microscopy insert ignore into journalissuearticles values(SEM); images. By using trH-BS, the adsorption of EBT from the aqueous medium was investigated using 5 different parameters. As a result, it was found that the adsorbents obtained from pepper stalks are suitable for use in EBT adsorption with a ratio of about 50% under suitable conditions.
Keywords : Pepper Stalk, phosphoric acid, activated carbon, eriochrome black T, adsorption

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