Photocatalytic decomposition of bisphenol A in water using composite TiO2-zeolite sheets prepared by a papermaking technique

Shuji Fukahori, Hideaki Ichiura, Takuya Kitaoka, Hiroo Tanaka

Research output: Contribution to journalArticlepeer-review

176 Citations (Scopus)

Abstract

Titanium dioxide (TiO2) photocatalyst and zeolite adsorbent were made into a paper-like composite by a papermaking technique using pulp and ceramic fibers as sheet matrix. The photocatalytic performance for the degradation of bisphenol A (BPA) dissolved in water was investigated under UV irradiation. The TiO2 sheet prepared was easier to handle than the original TiO2 powders in aqueous media. The TiO2 sheet could decompose the BPA under UV irradiation, although at a lower degradation efficiency than the TiO2 suspension. The TiO2-free zeolite sheet could not remove the BPA from water completely because of its adsorption equilibrium. Furthermore, the composite TiO2-zeolite sheets exhibited a higher efficiency for BPA removal than the zeolite-free TiO2 sheets, the efficiency of the former being equivalent to that of the TiO2 suspension. The enhancement in removal efficiency was not attributed to the simple adsorption of BPA on zeolite but rather to the synergistic effect obtained through the combined use of TiO2 photocatalyst and zeolite adsorbent in the paperlike composite sheet, which is believed to accelerate the BPA photodegradation in water.

Original languageEnglish
Pages (from-to)1048-1051
Number of pages4
JournalEnvironmental Science and Technology
Volume37
Issue number5
DOIs
Publication statusPublished - Mar 1 2003

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry

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