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Yang J, Du J, Li X, Liu Y, Jiang C, Qi W, Zhang K, Gong C, Li R, Luo M, Peng H. Highly Hydrophilic TiO₂ Nanotubes Network by Alkaline Hydrothermal Method for Photocatalysis Degradation of Methyl Orange. Nanomaterials (Basel) 2019; 9:nano9040526. [PMID: 30987111 PMCID: PMC6523166 DOI: 10.3390/nano9040526] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/10/2019] [Accepted: 03/11/2019] [Indexed: 11/16/2022]
Abstract
High-density and highly cross-coated anatase TiO2 nanotubes networks have been successfully prepared on the surface of Ti foil by alkaline hydrothermal using NaOH and Ti foil as the precursors. The nanotubes networks were analyzed using X-ray diffraction (XRD), energy dispersive X-ray spectrometer (EDX), transmission electron microscope (TEM), scanning electron microscopy (SEM), optical contact angle tester, and ultraviolet (UV) fluorescence spectrophotometer, respectively. The results showed that the nanotubes network with diameters of 30–50 nm were obtained on the Ti foil surface. The morphology of the nanotubes network possessed the three-dimensional network structure, The TiO2 nanotubes network grew along the (101) direction of the tetragonal anatase crystal. The morphology and crystal phase of the TiO2 nanotubes network were better at the conditions of NaOH concentration 7–10 mol/L and temperature 160–170 °C. The best contact angle of TiO2 nanotubes network after UV-light irradition was only 5.1 ± 2.9°. Under the irradiation of mercury lamp, the nanotubes network exhibited excellent photocatalytic performance and the degradation ratio of methyl orange solution reached to 80.00 ± 2.33%. Thus, the anatase TiO2 nanotubes network has great potential in applications for pollution photocatalytic degradation.
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Affiliation(s)
- Jin Yang
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Jun Du
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
- Jiangxi Province Key Laboratory of Edible and Medicinal Plant Resources, Nanchang University, Nanchang 330031, China.
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China.
| | - Xiuyun Li
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Yilin Liu
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Chang Jiang
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Wenqian Qi
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Kai Zhang
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Cheng Gong
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Rui Li
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Mei Luo
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
| | - Hailong Peng
- Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China.
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