Abstract
The present work reports the baby diaper wastes to recycle into cellulose and nanocellulose. Cellulose was extracted by chlorine-free approach, using acetic and nitric acids. Approximately 25.13 ± 1.02% w/w cellulose was extracted from the used baby diapers. FE-SEM and TEM analysed the morphology of extracted cellulose and nano cellulose. Different carbon atoms and functional groups of the extracted cellulose were identified by CP/MAS 13C NMR and FTIR spectroscopy respectively. Extracted cellulose exhibited a crystallinity of 65.16% as observed from the XRD analysis. A horizontal pattern of weight loss from 310 to 530 °C with an endothermal peak at 355 °C from DSC-TGA confirmed the presence of cellulose. Spherical cellulose nanocrystals (SCNCs) were produced using sulphuric acid hydrolysis with a size range of 50–190 nm. HPLC analysis of SCNCs confirmed the presence of only glucose and a minor fraction of cellobiose, indicating the high purity of the extracted cellulose.
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