Improved photocatalytic activity and adsorption ability of mesoporous potassium-intercalated layered titanate

Tae Woo Kim, In Young Kim, Jeong Hyeok Im, Hyung Wook Ha, Seong Ju Hwang

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Mesoporous potassium-intercalated layered titanate has been synthesized through a reassembling of exfoliated titanate nanosheets and potassium cations. According to powder X-ray diffraction, electron microscopy, and N2 adsorption-desorption isotherm analyses, the intercalation of potassium ions gave rise not only to a slight basal expansion of the layered titanate but also to the formation of mesoporous assembly of the layered crystallites. In comparison with the pristine cesium titanate and its protonated derivative, the mesoporous potassium-intercalated titanate showed better photocatalytic activity for the photodegradation of organic molecules and higher adsorption capability for organic dye and CO2 molecules, as well.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume205
Issue number2-3
DOIs
Publication statusPublished - 2009 Jun 25

Bibliographical note

Funding Information:
This work is the outcome of a Manpower Development Program for Energy & Resources supported by the Ministry of Knowledge and Economy (MKE) and partly supported by the SRC/ERC program of the MOST/KOSEF (grant: R11-2005-008-03002-0).

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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