Statistical physics modelling of azo dyes biosorption onto modified powder of Acorus calamus in batch reactor

Abstract

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Experimental and Theoretical Study of Methylene Blue Adsorption on a New Raw Material, Cynara scolymus—A Statistical Physics Assessment

“…Because of their abundance in nature and the simplicity of their transformation into effective adsorbents, biosorbents attract a lot of attention [8]. For instance, lignocellulosic materials (biosorbents) have been proposed for the treatment of colored effluents, such as orange peel [7], cone of Pinusbrutia [1], Stipatenacissima [2] and its fibers [9], cupuassu shell [10], Saw dust and neem bark [11], raw pomegranate [12], Phragmitesaustralis [13], green macro alga [14], and Acorus calamus [15].…”

“…Langmuir's model, for example, indicates that the adsorption site accepts one molecule of adsorbate, while physical models indicate that the acceptor site can accept n molecules of the adsorbate [25,26]. In recent years, numerous researchers have employed these physical models to describe the adsorption mechanism of their adsorbent materials, such as; porous heterostructured MXene/biomass activated carbon composites [27], lignin-based activated carbon [28], carbon foam hybrid aerogels [29], organo-sepiolite [30], Alginate/Carbon-based Films [31], cocoa shell [32], bone char [33], Acorus calamus [15], and Binary Mixture of Forest Waste Biopolymer [34]. To our current knowledge, the understanding of the interaction mechanism between Cynara scolymus (Cs) direct powder and MB ions remains limited, particularly with regard to utilizing advanced physical models for studying this interaction.…”

Natural and H2SO4 modified plane sawdust as a low-cost adsorbent: Removal of anionic and cationic dyes from aqueous solutions

“…Mohebali et al have modified celery residue with H2SO4 to use as a low-cost adsorbent for elimination of MB from aqueous solution in batch adsorption process [18]. Djama et al have treated Acorus calamus firstly with H2SO4 and then activated by KMnO4 to prepare an adsorbent for MB removal [19]. Zeydouni et al have used H2SO4-modified Aloe vera leaf shells for the removal of P-chlorophenol and MB from aqueous environment [20].…”