TiS 2 transformation into S-doped and N-doped TiO 2 with visible-light catalytic activity

Yu Chen Lin, Tzu En Chien, Po Chih Lai, Yu Hsien Chiang, Kun Lin Li, Jong Liang Lin

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

S-doped rutile has been prepared for the first time by hydrothermal reaction of TiS 2 in hydrochloric acid at a low temperature (180°C), with the S atoms in three states of Ti-S-Ti, Ti-S-O and SO 4 . TiS 2 in nitric acid can also be transformed into TiO 2 , but with mixed phases of anatase and rutile, containing nitrogen atoms at interstitial sites in the form of Ti-O-N or Ti-N-O. The S-TiO 2 catalyst shows a better visible-light reactivity toward adsorbed methylene blue (MB) photodegradation and hydroxylation of terephthalic acid with respect to the N-TiO 2 . The possible reasons leading to the high photoactivity of the S-TiO 2 are discussed in terms of the incorporated sulfur states.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalApplied Surface Science
Volume359
DOIs
Publication statusPublished - 2015 Dec 30

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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