Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects

Abstract

Adsorbent materials for industrial and environmental applications are the goal of seeking research under active investigation now. Activated carbons could be obtained from the organic material after been chemically or physically treated. In Egypt, Sugarcane bagasse could be considered one of the agricultural wastes that frequently produced. In this study, the low-cost adsorbent was prepared from raw Bagasse. The batch experiment was set up to determine the effect of using the agriculture waste (sugarcane bagasse) without any modification and activated it chemically and physically on methylene blue removal. The influence of adsorbent amount, agitation rate, and temperature on the dye removal were studied. The result shows that the percentage of dye removal reached up to %99.6 when the initial dye concentration was 15 ppm, and the amount of sorbent (chemically activated) was 0.3 g at room temperature. The adsorption kinetics and isotherms for the removal of methylene blue were represented with different models. It was detected that Langmuir and Freundlich's equations have the R 2 value closed to unity, and the maximum adsorption calculated capacity was 2.2 mg/g when the initial dye concentration was 15 ppm. Furthermore, pseudo-first-order and pseudo-second-order were fitted to examine the adsorption kinetic, and a pseudo-secondorder calculated the highest adsorption rate for the raw bagasse (0.59446 g/mg.min).

Lignin from Agro-Industrial Waste to an Efficient Magnetic Adsorbent for Hazardous Crystal Violet Removal

“…Molecules 2022, 27, x 12 of 21 which obstructs the reached the CV and its contact to the active site. Therefore, the optimum dosage is found to be 3 g/L [29]. Similar trends have also been proposed by Cheruiyot et al in their studies on the removal of crystal violet from aqueous solution using coffee husk as an affordable adsorbent [30].…”

“…The increase in dye removal when the adsorbent weight was 0.075 g could be interpreted as increasing removal efficiency in the first stage caused by the small adsorbent amount for the efficient spreading of the nanoparticles in the dye solution; therefore, available extra surface area and more available active sites after the almost constant percentage removal has occurred in the following step may be due to the accumulation of the particle and blocking the active site, which obstructs the reached the CV and its contact to the active site. Therefore, the optimum dosage is found to be 3 g/L [ 29 ]. Similar trends have also been proposed by Cheruiyot et al in their studies on the removal of crystal violet from aqueous solution using coffee husk as an affordable adsorbent [ 30 ].…”

The Interplay of Autoclaving with Oxalate as Pretreatment Technique in the View of Bioethanol Production Based on Corn Stover

“…Lignocellulosic materials are one of the most promising alternative energy sources for bioethanol production. The primary source of lignocellulosic materials is in crops such as palm tree [4], sugarcane [5], wheat straw [6], rice husk [7], and corn stover [8]. All these lignocellulosic materials mainly contain three components: cellulose, hemicellulose, and lignin.…”