Paper Title:
Rapid Degradation of Rhodamine B over Cyclodextrin Modified TiO2
  Abstract

A novel β-cyclodextrin (β-CD) grafted titanium dioxide (TiO2/β-CD) was synthesized through photo-induced self assembly methods, and its structure was characterized. The TiO2/β-CD hybrid nanomaterial showed high photoactivity under visible light irradiation (λ  400 nm and/or λ  420 nm) and simulated solar irradiation (λ  365 nm). Photodegradation of rhodamine B followed the Langmuir–Hinshelwood kinetics model. The initial rate R0 of rhodamine B degradation increased by 4.6, 2.4 and 1.5 times in the irradiation conditions of λ  420 nm, λ  400 nm and λ  365 nm, respectively. β-CD increased the lifetimes of the excited states of the unreactive guests and facilitated the electron transfer from the excited dye to the TiO2 conduction band, which enhanced the dye pollutant degradation.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Materials Science and Engineering
Edited by
Ran Chen
Pages
764-768
DOI
10.4028/www.scientific.net/MSF.694.764
Citation
X. Zhang, N. S. Deng, "Rapid Degradation of Rhodamine B over Cyclodextrin Modified TiO2", Materials Science Forum, Vol. 694, pp. 764-768, 2011
Online since
July 2011
Export
Price
$32.00
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