Preparation of In2s3/Agins2/Tio2 Nanotube Arrays and Enhanced Photoelectrochemical Cathodic Protection for 304 Ss Under Visible Light

Abstract

In 2 S 3 /AgInS 2 /TiO 2 nanotube arrays (NTAs) were successfully prepared by a two-step anodization of titanium followed by a successive ionic layer absorption and reaction (SILAR) procedure . In 2 S 3 /AgInS 2 /TiO 2 NTAs exhibited a high photocatalytic activity with the photoinduced open circuit potential drop up to 950 mV and current density drop of up to 30 µA•cm –2 under visible light. Therefore, In 2 S 3 /AgInS 2 /TiO 2 NTAs can provide higher photoelectrochemical cathodic protection under visible light compared with pristine TiO 2 NTAs 304 stainless steel.

Keywords: TiO2 nanotube arrays, AgInS2/In2S3 nanoparticles, cathodic protection, visible light