Synthesis and oxygen vacancy-related photocatalytic properties of ZnO nanotubes grown by thermal evaporation

Synthesis and oxygen vacancy-related photocatalytic properties of ZnO nanotubes grown by thermal... ZnO nanotubes with breaches in the walls (Breached ZnO nanotubes) with diameters of 50–200 nm and lengths up to several micrometers have been produced in high yield on glass substrates by heating Zn powder at 600–700 °C at a total gas pressure of 20 Pa. We assume formation of ZnO nanotubes involves four steps: formation of Zn vapor; formation of ZnO nanoplates; transformation of ZnO nanoplates into ZnO nanoleaves; and transformation of ZnO nanoleaves into ZnO nanotubes. The optical properties of nanotubes were studied by use of photoluminescence spectroscopy; strong green emission related to oxygen vacancies was observed. Study of the degradation of methyl orange (MO) revealed that the photocatalytic activity of the nanotubes was high, because of their high surface-to-volume ratios and abundant oxygen vacancies near their surfaces. This type of high-surface-area ZnO nanotube has potential for environmental applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis and oxygen vacancy-related photocatalytic properties of ZnO nanotubes grown by thermal evaporation

Loading next page...
 
/lp/springer_journal/synthesis-and-oxygen-vacancy-related-photocatalytic-properties-of-zno-u0Wc9WJDcx
Publisher
Springer Netherlands
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1620-y
Publisher site
See Article on Publisher Site

Abstract

ZnO nanotubes with breaches in the walls (Breached ZnO nanotubes) with diameters of 50–200 nm and lengths up to several micrometers have been produced in high yield on glass substrates by heating Zn powder at 600–700 °C at a total gas pressure of 20 Pa. We assume formation of ZnO nanotubes involves four steps: formation of Zn vapor; formation of ZnO nanoplates; transformation of ZnO nanoplates into ZnO nanoleaves; and transformation of ZnO nanoleaves into ZnO nanotubes. The optical properties of nanotubes were studied by use of photoluminescence spectroscopy; strong green emission related to oxygen vacancies was observed. Study of the degradation of methyl orange (MO) revealed that the photocatalytic activity of the nanotubes was high, because of their high surface-to-volume ratios and abundant oxygen vacancies near their surfaces. This type of high-surface-area ZnO nanotube has potential for environmental applications.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Apr 5, 2014

References

  • High-yield synthesis of single-crystalline ZnO hexagonal nanoplates and accounts of their optical and photocatalytic properties
    Xu, F; Yuan, ZY; Halasa, M; Su, BL

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

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

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

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.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off