Photodegradation of methyl orange from wastewater on TiO2/SnS combined powders

Photodegradation of methyl orange from wastewater on TiO2/SnS combined powders The photodegradation of an aqueous solution of methyl orange by the TiO2/SnS powders was studied in different ratios of SnS against TiO2. The effects of the initial pH value and light resource were investigated. The SnS extends the light absorption edge of the TiO2 to ~940 nm of the SnS (1.32 eV). The results indicated that the optimal SnS proportion for the maximum degradation efficiency increased in relation to a decrease in the initial pH in both sunlight and visible light, and decreased when changing from visible light to sunlight. The pure TiO2 powder had maximum efficiency in conditions of pH 9 and visible light irradiation or in conditions of pH 7 and sunlight irradiation. In visible light, the degradation efficiency on the powders containing the SnS was larger than that on the pure TiO2 powder in a range of pH 3–7. The maximum efficiency in visible light was found to be in conditions of pH 5 and TiO2:SnS = 3:2 and 2:3, beyond which the efficiency decreased. The efficiency was, overall, larger in sunlight than in visible light. The mechanism of the effects of pH and light resource was discussed in view of the surface charge of the catalysts. Research on Chemical Intermediates Springer Journals

Photodegradation of methyl orange from wastewater on TiO2/SnS combined powders

Loading next page...
Springer Netherlands
Copyright © 2011 by Springer Science+Business Media B.V.
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
Publisher site
See Article on Publisher Site


  • Removal of dyes from a synthetic textile dye effluent by biosorption on apple pomace and wheat straw
    Robinson, T; Chandran, B; Nigam, P

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 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

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

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial