Simple isolation and characterization of cellulose of wastepaper.

Cellulose is the most abundant of natural macromolecules in nature, and it can be obtained from the wastepaper. Wastepaper is mainly produced by daily activities such as school and office. This research aims to isolate and characterize the cellulose from wastepaper through the stages of double bleaching/ delignification under stirring and heating. The functional group analysis, crystallinity, and thermal analysis were performed using FTIR, XRD and TGA. Cellulose has some main functional groups, they are –OH stretching, -CH alkane, H-O-H bending, -CH2 bending, -OH bending, -C-O-C asymmetry and β-glycosidic for each wavenumber at 3403, 2902, 1639, 1431, 1373, 1060 and 897 cm−1. Cellulose of wastepaper has a degree of C.I. of 71%, while the onset temperature (Tonset) observed at 292.15 °C. Based on the results, cellulose of wastepaper was successfully isolated through the simple stages proposed. [ABSTRACT FROM AUTHOR]