Removal of basic and acid dyes from aqueous solutions using cone powder from Moroccan cypress Cupressus sempervirens as a natural adsorbent

Raw clays from Morocco for degradation of pollutants by Fenton-like reaction for water treatment

“…2 The distribution of the pore diameters is obtained using the BJH method based on a discrete analysis of the adsorption branch of the isotherm, where the average pore diameters are 3.8 and smaller than 6 or 18.6 nm for Clay F , Clay O and Clay MA , respectively. These values confirm a mesoporous structure, typical of the materials formed between the elementary clay structures that are called tactoids (Bencheqroun et al, 2019a;Jiang et al, 2019).…”

“…Moroccan raw clays were utilized as heterogeneous catalysts to eliminate pollutants from effluents in order to tackle the issue of clean water through the valorization of raw materials via the oxidation Fenton reaction. Morocco is a country with important deposits of clays and these geological materials are very attractive to apply as adsorbents (Bencheqroun et al, 2019a) or heterogeneous catalysts for Fenton-type oxidation (Assila et al, 2023).…”

“…Clays are a group of minerals used as raw materials in the ceramic, paper, and metal industries, in the field of pet feeding, and as adsorbents, discoloration agents, ion exchangers, supports, and catalysts. These minerals are phyllosilicates with basic building blocks of Si(O, OH) 4 tetrahedra and M(O, OH) 6 octahedra, and mostly M = Al 3+ , Mg 2+ or Fe 2+,3+ (Assila et al, 2023;Bencheqroun et al, 2019a;Schoonheydt, 1991).…”