Investigation of biochar from Cedrella fissilis applied to the adsorption of atrazine herbicide from an aqueous medium

Transformation of Residual Açai Fruit (Euterpe oleracea) Seeds into Porous Adsorbent for Efficient Removal of 2,4-Dichlorophenoxyacetic Acid Herbicide from Waters

“…Among the applicable technologies, adsorption has a high potential for use due to its simple design and high efficiency, especially when aligned with porous and high surface area materials such as ACs [11]. In the context of herbicides, several materials have already been used successfully and with high adsorption capacities, such as AC produced from wheat husk to remove 2,4-D [12]; corn cob biochar in the removal of 2,4-D [1]; rice husk hydrochar in the removal of atrazine [13]; bamboo stem biochar in atrazine removal [14]; carbonization of araçá fruit peels to remove atrazine [15]; charcoal production from the bark of the cedar forest species to remove atrazine [16]; removal of diuron from charcoal produced from baobab seeds [17]; and finally, commercial AC was used to remove paraquat, diquat and difenzoquat from the water [18].…”

Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)

“…The ash content was about 4.6% of the material, indicating that a large part of the biomass (70%) was eliminated or transformed during the pyrolysis step. It is worth noting that several studies in the literature using other plant biomasses, with zinc chloride (ZnCl 2 ) in a 1:1 ratio, obtained similar results [ 20 , 42 , 43 , 44 , 45 , 46 ]. In the study by Oliveira et al [ 47 ], using cassava bagasse to produce activated charcoal, the yield was 4.1 ± 0.8% using sodium hydroxide (NaOH) during the pyrolysis step.…”

“…This indicates the presence of unorganized structures, which is a characteristic that may favor the adsorption of Diuron since the possible empty spaces could accommodate the adsorbate molecules. In the literature, other coals from different plant biomasses have been found with similar patterns, such as those from peanut husk [ 57 , 58 ], Queen palm fruit endocarp [ 45 ], Cedrella fissilis husk [ 20 ], araucaria bark [ 59 ], argan bark [ 60 ] and Indonesian Kesambi wood [ 61 ].…”

“…[ 12 ]. In this sense, several materials have already been successfully applied in the removal of Diuron and other pesticides, such as wheat husk treated with H 2 SO 4 [ 13 ], corn cob [ 14 ], palm trunk [ 15 ], wood composites [ 16 ], mushroom residues [ 17 ], Physalis peruviana residues [ 18 ], bamboo stalk [ 19 ], the bark of the forest species Cedrella fissilis [ 20 ], araçá fruit bark [ 21 ], kaki seeds [ 22 ], leaves [ 23 ], baobab seed husks [ 4 , 24 ], bottom ash [ 25 ], and carbon nanotubes [ 26 ].…”

Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules

“…Because of their porous structure and good adsorption performance, microcapsules can achieve rapid adsorption of various drugs and dyes, and are also used as nano carriers in chemistry, biomedicine, electromagnetics and environmental science. Surface area and surface functional groups are two pivotal parameters to determine the adsorption capacity of anionic and cationic dyes [ 31 , 32 , 33 , 34 , 35 ]. (PAH/PSS) 2 PAH and (PAH/PSS) 2 microcapsules can selectively remove anionic and cationic dyes based on synergistic effects of porous and hollow structures and electrostatic interactions.…”