TY - JOUR
T1 - Synthesis of uncapped and graphite-capped ZnO nanostructures and their chromaticity and photocatalytic degradation of methylene blue for photonic emitting device and wastewater treatment applications
AU - Gajendiran, J.
AU - Udhayachozhan, P.
AU - Sawyasasin, D.
AU - Gnanam, S.
AU - Ramana Ramya, J.
AU - Balraju, P.
AU - Thennarasu, G.
AU - Suresh, R.
AU - Gnanasekaran, Lalitha
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
PY - 2026/1/15
Y1 - 2026/1/15
N2 - ZnO and graphite-capped ZnO nanostructures was synthesized via microwave treatment (420 W for 1 min) followed by a calcination (500 °C for 2 hrs). The formation of the aforementioned compounds, and their physico-chemical features were studied using XRD, ATR-FTIR, FE-SEM/EDX, UV–visible absorption, photoluminescence, chromaticity, and photodegradation characteristics. The effect of graphite on crystal structure, morphology, light absorption/emission, chromaticity, and photocatalytic activity of ZnO was thoroughly investigated. XRD analysis confirmed the hexagonal wurtzite phase in both ZnO and graphite capped-ZnO materials. FT-IR and EDS analysis were performed to confirm the formation of aforementioned compounds. The methylene blue (MB) photodegradation efficiency of ZnO and graphite-capped ZnO under UV light irradiation was determined as 94 and 97 %, respectively. The finding results would be suitable in photosensing displays and wastewater treatment applications.
AB - ZnO and graphite-capped ZnO nanostructures was synthesized via microwave treatment (420 W for 1 min) followed by a calcination (500 °C for 2 hrs). The formation of the aforementioned compounds, and their physico-chemical features were studied using XRD, ATR-FTIR, FE-SEM/EDX, UV–visible absorption, photoluminescence, chromaticity, and photodegradation characteristics. The effect of graphite on crystal structure, morphology, light absorption/emission, chromaticity, and photocatalytic activity of ZnO was thoroughly investigated. XRD analysis confirmed the hexagonal wurtzite phase in both ZnO and graphite capped-ZnO materials. FT-IR and EDS analysis were performed to confirm the formation of aforementioned compounds. The methylene blue (MB) photodegradation efficiency of ZnO and graphite-capped ZnO under UV light irradiation was determined as 94 and 97 %, respectively. The finding results would be suitable in photosensing displays and wastewater treatment applications.
KW - Luminescence
KW - Microstructure
KW - Nanocrystalline materials
KW - Optical materials and properties
KW - Photocatalysis
UR - https://www.scopus.com/pages/publications/105015145736
U2 - 10.1016/j.matlet.2025.139437
DO - 10.1016/j.matlet.2025.139437
M3 - Article
AN - SCOPUS:105015145736
SN - 0167-577X
VL - 403
JO - Materials Letters
JF - Materials Letters
M1 - 139437
ER -