Study of optical and structural properties of natural bamboo fiber powder prepared by ball milling method

Abstract

This present work reports the preparation and characterization of bamboo powder from bamboo fibers using a ball mill technique. The bamboo fiber powder is prepared with different ballmilling times of 3, 6, and 12 h. The morphology, crystallinity, functional groups, thermal analysis, absorbance, and photoluminescence of the obtained bamboo powders are analyzed.Morphological studies confirmed the decrement in the average particle size with an increase in ball milling duration. X-ray diffraction study confirms the polycrystalline nature of the synthesized powders. Particle size analysis confirms the average size of the particles 763.7 nm, 560.9 nm, and 428.9 nm for 3, 6, and 12 h ball-milled powders, respectively. The bamboo powder exhibited strong photoluminescence emission bands at 453 nm, 448 nm, and 445 nm for 3, 6, and 12 h of ball-milled powders, respectively. The blue shift observed for 12 h of ball-milled powder is due to the reduction in the size of the particles and associated enhancement of the optical band gap of the prepared bamboo particles.