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Molecules 2013, 18(2), 1457-1463; doi:10.3390/molecules18021457

Degradation of Methyl Blue Using Fe-Tourmaline as a Novel Photocatalyst

1,2, 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 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: 10 December 2012 / Revised: 8 January 2013 / Accepted: 14 January 2013 / Published: 24 January 2013
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This study investigated the photocatalytic activity of tourmaline by itself. Under irradiation of a 13 W, 254 nm UV lamp, 50% of methyl blue disappeared in the presence of 130 mg·L−1 tourmaline. The reaction was inhibited by the addition of ethanol, Cl, SO42− and Cu2+, and promoted a little by addition of 50 mg/L Mg2+, which supports the inference of involvement of OH radicals. This is the first proposal of tourmaline as a single photocatalyst without the need to add any artificial chemical products. Results from this study might contribute to the broadened usage of this mineral to approach the goals of saving energy and eliminate direct or indirect environmental pollution.
Keywords: tourmaline; methyl blue; photocatalysis; affecting factors tourmaline; methyl blue; photocatalysis; affecting factors
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 Methyl Blue Using Fe-Tourmaline as a Novel Photocatalyst. Molecules 2013, 18, 1457-1463.

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