A facile approach in activated carbon synthesis from wild sugarcane for carbon dioxide capture and recovery: isotherm and kinetic studies

Nagarajan, Loganathan; Saravanan, P.; Kumaraguru, K.; AnnamRenita, A.; Rajeshkannan, R.

doi:10.1007/s13399-022-03080-1

Cited by 3 publications

(1 citation statement)

References 68 publications

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“…The Sips exponent (n s ) is commonly used to derive the heterogeneity factor (m S = 1/n S ) which defines the heterogeneity of the adsorbent surface. The value of m S ranges between 0 and 1, an m S of 1 indicates a homogeneous surface while a value less than 1 indicates a heterogeneous surface 62 , 63 . In this work, the calculated m S is 0.26 revealing the heterogeneous nature of the surface of Oxi-CC.…”

Section: Resultsmentioning

confidence: 99%

Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent

Radwan,

Omar,

Moursy

2023

Sci Rep

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A commercial carbon cloth (CC) was oxidized by HNO3 acid and the features of the plain and oxidized CC were evaluated. The results of characterization illustrated that HNO3 oxidization duplicated the oxygen-containing functional groups and the surface area of the CC. The adsorption performance of the plain and oxidized CC (Oxi-CC) toward benzotriazole (BTR) was compared. The results disclosed that the uptake of BTR by oxidized CC was greater than the plain CC. Thence, the affinity of oxidized CC toward BTR was assessed at different conditions. It was found that the adsorption was quick, occurred at pH 9 and improved by adding NaCl or CaCl2 to the BTR solution. The kinetic and isotherm studies revealed that the surface of Oxi-CC is heterogeneous and the adsorption of BTR follows a physical process and forms multilayer over the Oxi-CC surface. The regenerability and reusability study illustrated that only deionized water can completely regenerate the Oxi-CC and that the Oxi-CC can be reused for five cycles without any loss of performance. The high maximum adsorption capacity of Dubinin–Radushkevich isotherm model (252 mg/g), ease of separation and regeneration, and maintaining the adsorption capacity for several cycles revealed the high efficiency and economical and environmental feasibility of Oxi-CC as an adsorbent for BTR.

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Section: Resultsmentioning

confidence: 99%

Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent

Radwan,

Omar,

Moursy

2023

Sci Rep

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Adsorption of azo dye by biomass and immobilized Yarrowia lipolytica; equilibrium, kinetic and thermodynamic studies

Hassan Ibrahim,

Cihangir,

Idil

et al. 2024

World J Microbiol Biotechnol

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One of the major environmental problems we have today is dye pollution, primarily caused by the textile industry. This pollution has detrimental effects on aquatic life, soil fertility, and human health. Many microbial biosorbents have been documented in the literature for the removal of a wide range of azo dyes commonly employed in the textile industry. However, Yarrowia lipolytica NBRC1658 is firstly used as both free and immobilized sorbents for the removal of Reactive yellow 18 (RY18), acid red 18 (AR18) and basic blue 41 (BB41) in this study. The effect of experimental conditions such as pH, biosorbent quantity, dye concentration, contact time, and temperature on dye removal capacity are examined. The research findings demonstrate that the adsorption capacity is higher in biomass compared to immobilized cells. The highest adsorption capacities are observed at pH 2 for RY18 and AR18, while pH 9 is optimal for BB41. Increasing the adsorbent dosage and initial concentration significantly improves the adsorption capacity. The Langmuir model best describes the adsorption process, indicating that the dye attaches to the biosorbent in a single layer, with a uniform biosorbent surface. The removal of the dye occurs through a chemical process on the biosorbent surface, as evidenced by the pseudo-second-order kinetic model. According to thermodynamic analysis, higher temperatures promote greater adsorption of dyes. Our study shows the effectiveness of Yarrowia lipolyica NBRC1658 as a biosorbent in the removal of a wide range of industrial dyes. Graphical Abstract

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Preparation and characterization of activated carbon from agricultural wastes and their ability to remove chlorpyrifos from water

et al. 2023

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A facile approach in activated carbon synthesis from wild sugarcane for carbon dioxide capture and recovery: isotherm and kinetic studies

Cited by 3 publications

References 68 publications

Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent

Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent

Adsorption of azo dye by biomass and immobilized Yarrowia lipolytica; equilibrium, kinetic and thermodynamic studies

Preparation and characterization of activated carbon from agricultural wastes and their ability to remove chlorpyrifos from water

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