Removal of pharmaceutical compounds from aqueous solution by novel activated carbon synthesized from lovegrass (Poaceae)

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

“…Drugs adsorption onto activated carbons. Many studies have been reported for the adsorption of drug from aqueous solution onto activated carbons, e.g., diclofenac (de Franco et al, 2018) and triclosan (Bernal et al, 2020a) onto the activated carbons, atenolol (Haro et al, 2017), and phenol, salicylic acid, and methylparaben (Bernal et al, 2020b) onto commercial granular activated carbons, ampicillin (Del Vecchio et al, 2019), and acetaminophen and salicylic acid (Bernal et al, 2020c) onto granular activated carbon, ranitidine onto activated carbon prepared from lemon peel (Bhattacharyya et al, 2019), metformin hydrochloride onto Zea mays tassel activated carbon (Kalumpha et al, 2020), metronidazole and sulfamethoxazole onto walnut shell-based activated carbon (Teixeira et al, 2019), etodolac onto microporous activated carbon derived from apricot, peach stones, and almond shell mixture biomasses (Erdem et al, 2020), acetaminophen onto cashew nut shell biomass-derived activated carbons (Geczo et al, 2020), acetylsalicylic acid and sodium diclofenac onto lovegrass (Poaceae) derived activated carbon (Cimirro et al, 2020), and amoxicillin onto activated carbon obtained from the sugar and alcohol industry byproducts (Schultz et al, 2020).…”

Application of Lolium multiflorum as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue

“…In both activated carbons, there was a decrease in the intensity of these peaks, suggesting a lower amount of these groups on the surface compared to the treated samples. The band around 1717 cm −1 is characteristic of the C=O stretching of the esters, ketones, and carboxylic groups of the hemicellulose and lignin [56,[58][59][60] followed by the C=C bond stretching in aromatic rings around 1637 cm −1 [56]. The intense absorption band at 1060 cm −1 is attributed to the C-O-C of the β-glycosidic linkages stretch of the lignocellulosic compounds [58,61] The peaks around 610 cm −1 corresponds to the C-H group of the aliphatic and aromatic or the C-N groups [62][63][64].…”

“…In both activated carbons, there was a decrease in the intensity of these peaks, suggesting a lower amount of these groups on the surface compared to the treated samples. The band around 1717 cm −1 is characteristic of the C=O stretching of the esters, ketones, and carboxylic groups of the hemicellulose and lignin[56,[58][59][60] followed by the C=C bond stretching in aromatic rings around 1637 cm −1[56]. The intense…”

Investigation of mercury(II) and copper(II) sorption in single and binary systems by alginate/polyethylenimine membranes

“…4 and Table S1(a)). This means the involvement of amine and hydroxyl groups with Hg(II) is stronger in the case of mercury sorption, (b) shift of the peak at 2928 cm − 1 (C-H stretching vibration); this means that C-H groups or their neighbor reactive groups are involved in metal binding process (Cimirro et al, 2020), (c) shift and intensity decrease of the peak at 1316 cm − 1 (C-N stretching vibration, resulting from the interaction between amine groups of PEI and aldehyde groups of GA) (Liu, Kuila, Kim, Ku, & Lee, 2013), which is associated with both metal binding, (d) slightly decrease of the intensity of the peaks at 1406 cm − 1 and 1030 cm − 1 , which are assigned to COOsymmetric stretching and C-O skeletal stretching vibrations of the carboxylate groups in alginate (Lawrie et al, 2007). This means carboxylate groups play a role in the sorption of Hg(II) and Cu(II).…”