STUDY OF PHYSICAL AND OPTICAL PROPERTIES OF SUGARCANE LEAF ASH GLASS DOPED WITH COPPER OXIDE
Study of Physical and Optical Properties of Sugarcane Leaf Ash Glass Doped with Copper Oxide
DOI:
https://doi.org/10.55766/sujst11149Keywords:
Sugarcane Leaf ash, CuO, Glass, Physical Properties, Optical PropertiesAbstract
In this research, the physical and optical properties of sugarcane leaf ash doped with copper ions in glass were investigated. The composition of sugarcane leaf ash was analyzed at different sintering temperatures using X-ray fluorescence (XRF) spectroscopy, revealing the highest SiO₂ content (69 wt%). The glass formula was developed based on the ratio (50-x)SiO₂ (with sugarcane leaf ash substituting for SiO₂ and CaO): 25B₂O₃: 10Na₂O: 8CaO: 7SrO: xCuO, where x represents the concentration of copper oxide (0.00, 0.10, 0.20, 0.30, 0.40, and 0.50 mol%). The results showed that the density and refractive index increased with increasing CuO concentration, while the molar volume decreased. The absorption spectra of the glass in the wavelength range of 350-1,100 nm was measured and showed a peak around 775 nm, corresponding to the ²B₁g → ²B₂g transition of Cu²⁺. The studied glass exhibited greenish-blue color coordinates, confirmed by CIE Lab* color measurements.
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