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Materials 2013, 6(4), 1530-1542; doi:10.3390/ma6041530

Degradation of 2,4-Dichlorophenoxyacetic Acid (2,4-D) by Novel Photocatalytic Material of Tourmaline-Coated TiO2 Nanoparticles: Kinetic Study and Model

1,3,* and 1,*
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Nanjing Institute of Environmental Sciences of the Ministry of Environmental Protection of PR China, Nanjing 210042, China
Department of Environmental Science & Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
Authors to whom correspondence should be addressed.
Received: 19 February 2013 / Revised: 28 March 2013 / Accepted: 7 April 2013 / Published: 15 April 2013
(This article belongs to the Special Issue Advances in Catalytic Materials)
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The novel complex photocatalytic material was prepared by coating TiO2 nanoparticles on tourmaline using the sol-gel method, and used in the degradation of the herbicide 2,4-D. The results indicated that coating TiO2 with tourmaline enhanced the photocatalytic activity significantly. Based on the research of a simplified model for the average light intensity in the photoreactor, the influence of the concentration of photocatalyst, and the initial concentration of 2,4-D, a model for the degradation of 2,4-D by the tourmaline-coated TiO2 nanoparticles was established. Further tests showed that results calculated from this model were close to those obtained in the actual experiments.
Keywords: novel photocatalytic material; tourmaline; TiO2; 2,4-D; model novel photocatalytic material; tourmaline; TiO2; 2,4-D; model
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Bian, X.; Chen, J.; Ji, R. Degradation of 2,4-Dichlorophenoxyacetic Acid (2,4-D) by Novel Photocatalytic Material of Tourmaline-Coated TiO2 Nanoparticles: Kinetic Study and Model. Materials 2013, 6, 1530-1542.

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