Abstract:Chemicals that are available from renewable resources typically contain heteroatoms that make hydrogen bonding a prominent intermolecular interaction. We are examining how hydrogen bonding can be exploited as an adsorption mechanism to facilitate the recovery and separations of oxygenated aromatic compounds from renewable resources. Specifically, we examined the adsorption of compounds that have weak or attenuated hydrogen-bonding abilities. The solvent in our study was hexane, which is commonly used in the fo… Show more
“…FT-IR spectrum is a useful tool to identify presence of certain functional groups on the resin because each unique absorption peak reveals the specific chemical bond [17]. As displayed in Fig.…”
“…FT-IR spectrum is a useful tool to identify presence of certain functional groups on the resin because each unique absorption peak reveals the specific chemical bond [17]. As displayed in Fig.…”
“…Pore volume (cm 3 onto Amberlite XAD-7 primarily through the intermolecular hydrogen bond formed between the phenolic hydroxyl group and the carbonyl group on the polymeric matrix [15,16]. Such specific interaction may play a positive role in phenol adsorption from aqueous solution [22], however, it will be effectively weakened in aqueous solution due to the competitive effect of water [17].…”
“…The adsorption of polyphenols by resins containing amide groups is driven by hydrophobic interaction and multiple hydrogen bonding [33]. Phenol molecules adsorb effectively from hexane solution onto amberlite XAD-7 primarily through the intermolecular hydrogen bond formed between the phenolic hydroxyl group and the carbonyl group on the polymeric matrix [34]. Amberlite XAD-7, which gives the highest E ads for all the adsorbate molecules is a non-ionic aliphatic acrylic polymer whereas XAD-4 is composed of styrene-divinylbenzene hydrophobic polyaromatic polymer, making it more efficient for adsorption of compounds of higher hydrophobicity.…”
Section: Interaction Energy Using Semiempirical Methodsmentioning
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