Solvothermal synthesis of designed nonstoichiometric strontium titanate for efficient visible-light photocatalysis

Applied Physics Letters 97, 103102 2010

SrTiO3 powders with various Sr/Ti atomic ratios were synthesized by microwave-assisted
solvothermal reactions of SrCl2 and TiOC3H74 in KOH aqueous solutions. The nanoparticles of perovskite type SrTiO3 structure with the particle size of 30–40 nm were synthesized. The photocatalytic activity was determined by deNOx ability using light emitting diode lamps of various wavelengths such as 627 nm red, 530 nm green, 445 nm blue, and 390 nm UV. The photocatalytic activity significantly changed depending on the Sr/Ti atomic ratio, i.e., the strontium rich sample Sr/Ti atomic ratio1 showed excellent visible light responsive photocatalytic activity for the oxidative destruction of NO.

fig-1

Advertisements
This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s