Synthesis of Iron Oxide Incorporated Cellulose Composite Particles and Evaluation of Its Possible Applications

In this investigation we have attempted to extract cellulose fiber from waste materials.

Crystalline cellulose particles were prepared from sugarcane bagasse (SCP) and waste

used tissue papers (PCP) by acid hydrolysis. It was further modified as a composite

with iron oxide nanoparticles (cellulose/Fe 3 O 4 ) by in situ coprecipitation method. The

successive structural modification of cellulose particles with Fe 3 O 4 was confirmed.

The precipitated Fe 3 O 4 nanoparticles were expected to be bonded with cellulose

particles via hydrogen bonding. Advanced techniques were used to compare the

nanocomposites such as Fourier transform infrared, electron microscopy, X-ray

diffraction, and vibrating sample magnetometry. The results of the study revealed that

the synthesized nanostructures had a spherical shape and the average particle size was

10.8 nm. Moreover, the particle size is smaller than the size (12.38 nm) of the green

synthesized Fe 3 O 4 nanoparticles. Another important feature of the nanoscale was the

magnetic property, which was found to be smaller (31.83 emu/g) than that obtained in

Fe 3 O 4 NPs (32.43 emu/g). Besides, the swelling rate of the nanocomposite were

investigated, which were 159.5 g/g, and 155 g/g respectively, higher than the swelling

capacity attained for extracted cellulose (63.0 g/g). Apart from this, the composite

was also examined as a controlled process of drug delivery. A prolonged and more

controlled drug releases were observed for the synthesized cellulose/Fe 3 O 4

nanocomposite in metronidazole drug delivery system. In addition, the preliminary

adsorption of cellulose/Fe 3 O 4 composite as adsorbent material for Congo red was

examined. The nanocomposites (0.4 mg/mL) completely degraded 20 mL of 10 ppm,

20 ppm & 30 ppm Congo red aqueous solution within 2 hours.

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