Cu-doped titania was prepared from sols containing titanium tetraisopropoxide (TTIP) and copper(II) isopropoxide (CIP). The Cu distribution in the titania was controlled by varying the reaction time of the TTIP at which the CIP was added to the sol. The photocatalytic activities of the samples were evaluated by the hydroxyl radical production during UV and visible irradiations. The influences of the Cu distribution in the titania and the electronic interaction between the Ti and Cu on the photocatalytic activity were discussed. The sample prepared by adding CIP after some reaction time of TTIP exhibited a higher activity than that prepared by initially mixing TTIP and CIP. The impurity states of Cu2+ on the titania surface effectively trapped the electrons in the conduction band of the titania and received the electrons in the valence band upon photoexcitation, and consequently, suppressed charge recombination of the electrons and holes. In the sample, the high Cu distribution on only the titania surface rather than inside the titania bulk led to its high photocatalytic activity.
Research on Chemical Intermediates – Springer Journals
Published: Oct 31, 2015
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera