Decomposition of 2-chlorophenol using a tourmaline-photocatalytic system

作者：Song Sun Ho; Kang Misook^*

来源：Journal of Industrial and Engineering Chemistry, 2008, 14(6): 785-791.

DOI：10.1016/j.jiec.2008.05.002

• Tourmaline (10.0 wt.%)/TiO(2)
• Photocatalytic system
• 2-Chlorophenol removal

10.0 wt.% tourmaline mineral was loaded onto amorphous TiO(2) and treated at 100-900 degrees C to obtain anatase and rutile structures, respectively, and were used for the photodecomposition of 2-chlorophenol. Tourmaline (10.0 wt.%)/TiO(2) (anatase) and pure TiO(2) (anatase) adsorbed 2-chlorophenol at 15 ppm and 8 ppm, respectively. 2-Chlorophenol was completely decomposed after 42 h in 10.0 wt.% tourmaline/TiO(2) (anatase), by a first-order rate equation. The decomposition rate increased with increasing catalyst amount and tourmaline concentration to give optimal conditions of 1.0 g/L and 12.5 wt.%, respectively. The decomposition of 2-chlorophenol was also affected by H(2)O(2) addition and pH regulation. The decomposition rate reached 40.0 ppm/h when 10.0 mL/L of H(2)O(2) was added to the feed solution, and 100 ppm of 2-chlorophenol was completely removed after 21 h at pH 11.0.

• 出版日期2008-11