Improve the catalytic activity of feooh/bentonite material by mechanical activation

• GUANGTAO WEI ^[1] ; ZHONGMIN LI ^[1] ; LINYE ZHANG ^[1] ; YUE DENG ^[1] ; LUHUA SHAO ^[1] ; ZIHAN LIU ^[1]
  1. [1] Guangxi University

     Guangxi University

     China

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 62, Nº. 1, 2017, págs. 3407-3410
• Idioma: inglés
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• Resumen

  • To improve the catalytic activity of FeOOH/bentonite material used in Fenton-like process, the activation of FeOOH/bentonite by mechanical activation was studied. The optimum conditions for activation of FeOOH/bentonite were as follows: filling ratio of grinding medium 30%, "15 mL of D06 balls plus 15 mL of D10 balls" as combination mode of grinding medium, rotation speed of planet carrier 600 rpm, milling time 40 min, and powder-to-ball ratio 0.5:30 (g•mL-1). The mechanical activation was an effective method to improve the catalytic activity of FeOOH/bentonite. Both the lattice distortion and crystal size decrease happened in α-FeOOH and the change of layer structure of bentonite were contributed to the increase of catalytic activity of activated FeOOH/bentonite.