Tailoring the optical and hydrophobic property of zinc oxide nanorod by coating with amorphous graphene |
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| Affiliation: | 1. Dept. of Engineering Science and Humanities, Academy of Technology, Hooghly 712121, India;2. School of Material Science and Nanotechnology, Jadavpur University, Kolkata 700032, India;1. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland;2. AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, al. Mickiewicza 30, Kraków, Poland;1. Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Chihuahua/Monterrey, 120 Avenida Miguel de Cervantes, 31109 Chihuahua, Mexico;2. Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV) Querétaro, Libramiento Norponiente 2000, Fracc. Real de Juriquilla, 76230 Querétaro, Mexico;3. Chernivtsi National University, Kotsyubynsky Str. 2, 58012 Chernivtsi, Ukraine;1. Department of Physics, College of Agriculture and Natural Sciences, U.C.C, Ghana;2. Department of Mathematics, College of Agriculture and Natural Sciences, U.C.C, Ghana;1. Departamento de Física e Química, Universidade Estadual Paulista, 15385-000 Ilha Solteira, São Paulo, Brazil;2. Instituto de Geociências e Ciências Exatas – IGCE, Universidade Estadual Paulista, Departamento de Física, 13506-970 Rio Claro, São Paulo, Brazil;3. Instituto de Física, Universidade Federal Fluminense, 24210-340 Niterói, RJ, Brazil;1. Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Ministry of Education, Shanghai 201804, China;2. School of Materials Science and Engineering, Tongji University, Shanghai 201804, China |
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| Abstract: | 
Zinc oxide (ZnO) nanorods were synthesized at room temperature on potassium permanganate activated silicon and glass substrate by simple chemical method using zinc acetate as precursor.To modify the surface energy of the as prepared ZnO thin films the samples were coated with amorphous graphene (a-G) synthesized by un-zipping of chemically synthesized amorphous carbon nanotubes (a-CNTs). All the pure and coated samples were characterized by x-ray diffraction, field emission scanning electron microscope, Raman spectroscopy, and Fourier transformed infrared spectroscopy. The roughness analysis of the as prepared samples was done by atomic force microscopic analysis. The detail optical properties of all the samples were studied with the help of a UV-Visible spectrophotometer.The surface energy of the as prepared pure and coated samples was calculated by measuring the contact angle of two different liquids. It is seen that the water repellence of ZnO nanorods got increased after they are being coated with a-Gs. Also even after UV irradiation the contact angle remain same unlike the case for the uncoated sample where the contact angle gets decreased significantly after UV irradiation. Existing Cassie-Wenzel model has been employed along with the Owen's approach to determine the different components of surface energy. |
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| Keywords: | Zinc oxide nanorods Amorphous graphene Optical property Surface energy Hydrophobicity |
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