| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 227785 | Journal of Industrial and Engineering Chemistry | 2016 | 7 Pages |
•DCOIT participated in the electrodeposition process by chelating Zn2+.•DCOIT chelated Zn2+ by means of its carbonyl group and carbon-chloride bond.•The DCOIT mass faction of the DCOIT-zinc composite film was 5%.•The DCOIT-zinc composite film exhibited uniform corrosion in natural seawater.
The present research seeks to address biologically influenced corrosion by electrodepositing a novel 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one(DCOIT)-zinc composite films for enhanced corrosion resistant properties. Investigated by electrochemical methods, energy dispersive spectroscopy distribution mapping, and infrared absorption spectroscopy, a deposition mechanism was proposed wherein the DCOIT molecule chelated the zinc ion to participate in electrodeposition. The DCOIT-zinc chelate produced obvious alterations in the surface morphology and crystal orientations. Thermogravimetric analysis determined the DCOIT mass fraction in the composite film was 5%. The DCOIT-zinc composite film demonstrated uniform corrosion in natural seawater and the enhanced anticorrosion property was achieved by successfully embedding DCOIT.
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