Electrospinning fabrication of rime-like NiO nanowires/nanofibers hierarchical architectures and their photocatalytic properties |
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| Affiliation: | 1. Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, 430070 Wuhan, Hubei, China;2. Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK;3. Nanoscience Centre, University of Cambridge, Cambridge CB3 0FF, UK;4. Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 Rue de Bruxelles, B-5000 Namur, Belgium;5. Department of Chemistry and Clare Hall, University of Cambridge, Cambridge CB2 1EW, UK;1. Department of Engineering Chemistry, Chungbuk National University, Gaesin-Dong, Seowon-Gu, Cheongju, 361-763, Republic of Korea;2. Department of Chemical Engineering, Chungbuk National University, Gaesin-Dong, Seowon-Gu, Cheongju, 361-763, Republic of Korea;3. Department of Carbon Convergence Engineering, College of Engineering, Wonkwang University, Iksan, Jeonbuk, 54538, South Korea;4. Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul, 136-713, Republic of Korea |
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| Abstract: | Rime-like NiO Nanowires/nanofibers hierarchical architectures have been fabricated employing a co-precipitation reaction and electrospinning method. The synthesized hierarchical structure was characterized using SEM, XRD and BET analysis methods. The effects of growth temperature and reaction time on the morphologies of the as-prepared structures were investigated by SEM characterization and a possible mechanism for the formation of NiO hierarchical structures is proposed. Based on the nitrogen adsorption and desorption measurements, the BET surface area of the as-obtained sample is 61.0 m2/g and the pore sizes of ca. 5.0 nm. The catalytic efficiency of the NiO nanomaterials developed was evaluated by the photocatalytic degradation of acetaldehyde. In comparison with sphere-like and fiber-like structures, the NiO hierarchical structures show an excellent ability to rapidly acetaldehyde pollutant, which may be attributed to its unique hierarchical and porous surface structures. |
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| Keywords: | NiO nanowires/nanofibers Hierarchical structures Co-precipitation reaction Electrospinning Photocatalytic properties Acetaldehyde |
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