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Catalysts 2017, 7(8), 229; doi:10.3390/catal7080229

Fast and Large-Scale Anodizing Synthesis of Pine-Cone TiO2 for Solar-Driven Photocatalysis

1
College of Environment, Sichuan Agricultural University, Chengdu 611130, China
2
Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
3
Department of Chemistry, University of Missouri-Kansas City, Kansas City, MO 64110, USA
*
Authors to whom correspondence should be addressed.
Received: 6 July 2017 / Revised: 24 July 2017 / Accepted: 27 July 2017 / Published: 1 August 2017
(This article belongs to the Special Issue Titanium Dioxide Photocatalysis)
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Abstract

Anodization has been widely used to synthesize nanostructured TiO2 films with promising photocatalytic performance for solar hydrogen production and pollution removal. However, it usually takes a few hours to obtain the right nanostructures even on a small scale (e.g., 10 mm × 20 mm). In order to attract interest for industrial applications, fast and large-scale fabrication is highly desirable. Herein, we demonstrate a fast and large-scale (e.g., 300 mm × 360 mm) synthesis of pine-cone TiO2 nanostructures within two min. The formation mechanism of pine-cone TiO2 is proposed. The pine-cone TiO2 possesses a strong solar absorption, and exhibits high photocatalytic activities in photo-oxidizing organic pollutants in wastewater and producing hydrogen from water under natural sunlight. Thus, this study demonstrates a promising method for fabricating TiO2 films towards practical photocatalytic applications. View Full-Text
Keywords: pine-cone TiO2 nanoclusters; formation mechanism; lattice defects; optical absorption; large-sized films; printing and dyeing wastewater pine-cone TiO2 nanoclusters; formation mechanism; lattice defects; optical absorption; large-sized films; printing and dyeing wastewater
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Liu, Y.; Zhang, Y.; Wang, L.; Yang, G.; Shen, F.; Deng, S.; Zhang, X.; He, Y.; Hu, Y.; Chen, X. Fast and Large-Scale Anodizing Synthesis of Pine-Cone TiO2 for Solar-Driven Photocatalysis. Catalysts 2017, 7, 229.

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