Abstract:
:The TiO₂-system powders were investigated with respect to the crystallinity and the microstructure. The biocidal activity increased from TiO₂ to binary MnOx-TiO₂ to ternary MnOx-WO₃-TiO₂ against Vibrio fischeri as a model of Gram-negative bacteria. Anatase and rutile TiO₂ were not toxic even at 200 mg/L, but anatase has been observed in bacterial growth inhibition due to the different electronic band (lattice) structure. All materials containing manganese oxides were toxic: the toxicity correlation (EC₅₀) of MnOx-WO₃ and MnOx-WO₃-TiO₂ was 7.0, 1.8 ppm, respectively. The high antifouling activity of MnOx-WO₃-TiO₂ was attributed to its redox potential and soluble metal ions originating from tungsten oxides according to the improvements in the powder characteristics.
journal_name
Bull Environ Contam Toxicoljournal_title
Bulletin of environmental contamination and toxicologyauthors
Shin B,Kim S,Lee H,Park Hdoi
10.1007/s00128-013-1028-1subject
Has Abstractpub_date
2013-08-01 00:00:00pages
208-12issue
2eissn
0007-4861issn
1432-0800journal_volume
91pub_type
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