Evaluation to possibility of cellulose fibers isolated from kapok randu (Ceiba Pentandra) as a precursor growth of carbon micro structures with the assist of metal catalysts

Gea, Saharman; Andriayani, .; Piliang, Averroes Fazlurrahman; Attaurrazaq, Boy; Rahayu, Suci; Hendrana, Sunit

doi:10.1016/j.jksus.2022.102423

Cited by 4 publications

(1 citation statement)

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“…26 The adsorption peak appears at wavelengths of 2879 and 877 cm −1 demonstrating the stretching vibration of the C–H groups of alkanes and alkenes. 26,27 The functional group at the 1164 cm −1 adsorption peak is assigned to the formation of the C–O–C group of the ester. This was predicted in GeethaK and Shabudeen’s study.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of activated carbon from cotton plant by-products in Vietnam to remove methylene blue and congo red

Nguyen Thi Hong,

Le Quoc,

Ngo

et al. 2024

Journal of Chemical Research

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Activated carbon from cottonwood was synthesized by microwave-assisted method with activator NaOH. Activated carbon from cottonwood has a rough surface like coral, an amorphous structure with surface functional groups such as O–H, C–H, C=C, and C–O. The surface area and pore size were recorded at 395.48 m2 g−1 and 2.35 nm. The adsorption capacity of activated carbon from cottonwood was evaluated on two groups of anion dyes (congo red) and cation dye (methylene blue) to evaluate the influencing factors and predict the adsorption process. The best adsorption conditions were recorded for methylene blue (time: 30 min, temperature: 30 °C, pH: 10, activated carbon from cottonwood of 1 g L−1, methylene blue of 80 mg L−1, and adsorption capacity of 30.875 mg g−1) and congo red (time: 150 min, temperature: 60 °C, pH: 2, activated carbon from cottonwood of 2 g L−1, congo red of 100 mg L−1, and adsorption capacity of 45.97 mg g−1), respectively. The adsorption process was consistent with the Bangham kinetic and Dubinin–Radushkevich (D–R) isotherm model. The process of evaluating reusability shows that activated carbon from cottonwood can be reused 4 times.

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Section: Resultsmentioning

confidence: 99%