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

J. Gajendiran; P. Udhayachozhan; D. Sawyasasin; S. Gnanam; J. Ramana Ramya; P. Balraju; G. Thennarasu; R. Suresh; Lalitha Gnanasekaran

doi:10.1016/j.matlet.2025.139437

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

J. Gajendiran
, P. Udhayachozhan
, D. Sawyasasin
, S. Gnanam
, J. Ramana Ramya
, P. Balraju
, G. Thennarasu
, R. Suresh
, Lalitha Gnanasekaran

Departamento de Ingeniería Mecánica

Vel Tech University
Vels Institute of Science, Technology & Advanced Studies
Saveetha Institute of Medical and Technical Sciences (Deemed to be University)
Anna University
University of Madras
Karpagam Academy of Higher Education

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2 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Número de artículo	139437
Publicación	Materials Letters
Volumen	403
DOI	https://doi.org/10.1016/j.matlet.2025.139437
Estado	Publicada - 15 ene 2026

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Gajendiran, J., Udhayachozhan, P., Sawyasasin, D., Gnanam, S., Ramana Ramya, J., Balraju, P., Thennarasu, G., Suresh, R., & Gnanasekaran, L. (2026). 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. Materials Letters, 403, Artículo 139437. https://doi.org/10.1016/j.matlet.2025.139437

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title = "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",

abstract = "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{\textendash}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.",

keywords = "Luminescence, Microstructure, Nanocrystalline materials, Optical materials and properties, Photocatalysis",

author = "J. Gajendiran and P. Udhayachozhan and D. Sawyasasin and S. Gnanam and \{Ramana Ramya\}, J. and P. Balraju and G. Thennarasu and R. Suresh and Lalitha Gnanasekaran",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2026",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2025.139437",

language = "English",

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Gajendiran, J, Udhayachozhan, P, Sawyasasin, D, Gnanam, S, Ramana Ramya, J, Balraju, P, Thennarasu, G, Suresh, R & Gnanasekaran, L 2026, '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', Materials Letters, vol. 403, 139437. https://doi.org/10.1016/j.matlet.2025.139437

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. / Gajendiran, J.; Udhayachozhan, P.; Sawyasasin, D. et al.
En: Materials Letters, Vol. 403, 139437, 15.01.2026.

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

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

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 -

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

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