Photocatalyzed Degradation of Metal-EDTA Complexes in TiO2 Aqueous Suspensions and Simultaneous Metal Removal
- 1 February 1997
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 26 (2) , 155-156
- https://doi.org/10.1246/cl.1997.155
Abstract
Cu(II)-, Fe(III)-, and Zn(II)-EDTA complexes are degraded rapidly in aerated aqueous suspensions of TiO2 with a high-pressure mercury lamp (irradiation wavelength > ca.290 nm), accompanying a full removal of the metals. Total organic carbons (TOCs) in their solutions decrease with the irradiation time, however, TOCs remained after 5 h irradiation. Although Co(II)- and Ni(II)-EDTA complexes are degraded, the removal of their metals is slow. Mn(II)-EDTA complex is degraded incompletely even after 5 h irradiation.Keywords
This publication has 5 references indexed in Scilit:
- Environmental Applications of Semiconductor PhotocatalysisChemical Reviews, 1995
- An investigation of titanium dioxide photocatalysis for the treatment of water contaminated with metals and organic chemicalsEnvironmental Science & Technology, 1993
- Formation of nitrate and ammonium ions in titanium dioxide mediated photocatalytic degradation of organic compounds containing nitrogen atomsEnvironmental Science & Technology, 1991
- Photocurrent enhancement via trapping of photogenerated electrons of titanium dioxide particlesThe Journal of Physical Chemistry, 1982
- Heterogeneous photocatalytic and photosynthetic deposition of copper on Titanium dioxide and tungsten(VI) oxide powdersThe Journal of Physical Chemistry, 1979