Comparative study on removal of divalent manganese ions by nanometer TiO2 with different morphology


Comparative study on removal of divalent manganese ions by nanometer TiO2 with different morphology


Wenhao Wei, Guangming Liu, Jiakun Wang

College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China.


Scientific Research and Reviews

In order to solve the problem of excessive Mn(II) content in water in some areas of China, TiO2 nanotubes and TiO2 powder are used to remove Mn(II). The experimental results show that both TiO2 nanotubes and TiO2 powder have certain manganese removal effect, and the effect of powder is better. When the pH was 5.6 and the 20W UV lamp was irradiated for 40 min, the removal rate of the powder was 64.3 %, and the removal rate of the nanotubes anodized for 1h was 35.3 %, and the removal rate of the nanotubes anodized for 30 min was 23.9 %. When the pH is adjusted to 7-8, the removal rate of the nanotubes is significantly improved. When the pH was 8, 20W UV lamp was irradiated for 40 min, the removal rate of nanotubes anodized for 1h was 60.4%.


Keywords: Divalent manganese ion; Photocatalytic; Nano titanium dioxide; Remove

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How to cite this article:
Wenhao Wei, Guangming Liu, Jiakun Wang. Comparative study on removal of divalent manganese ions by nanometer TiO2 with different morphology. Scientific Research and Reviews, 2019, 12:108. DOI:10.28933/srr-2019-06-2006


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