Heliyon, Год журнала: 2024, Номер 10(13), С. e33642 - e33642

Опубликована: Июнь 28, 2024

Chitosan is a biocompatible, non-toxic and renewable natural basic polysaccharide that can be cross-linked reacted with Ce(IV) to form physiologically active chitosan-Ce(IV) complex. To investigate this novel complex its potential hydrolyze phosphate ester bonds, chitosan-cerium microspheres resin (CS-CCMR) was prepared from chitosan ceric ammonium nitrate by reversed-phase suspension cross-linking polymerization. CS-CCMR characterized, ability disodium p-nitrobenzene (PNPP2Na) organophosphorus pesticides investigated, the hydrolytic mechanism explored. composed of dark yellow smooth surfaces dense pores. It found contained 4.507 mg/g Ce(IV), indicating coordination polymerization between successful. The presence in confirmed multiple analytical methods it mediated nitrogen atom amino group oxygen hydroxyl chitosan. shown efficiently hydrolyzed bonds PNPP2Na five pesticides. Hydrolysis potentially accomplished charge neutralization nucleophilic substitution. parathion degradation involves modification nitro give aminoparathion, followed cleavage P–O bond generate diazinphos. Consequently, exhibits great efficiency for hydrolysis expected developed as an agent reduce possibility contamination fruit vegetable drinks

Язык: Английский