NDLI: Synthesis, characterization, and adsorption kinetics of titania nanotubes for basic dye wastewater treatment

Content Provider	Springer Nature Link
Author	Lin, Kuen Song Cheng, Hao Wei Chen, Wen Ru Wu, Chian Fu
Copyright Year	2010
Abstract	Titanium dioxide has been recognized as an excellent photocatalyst material applied on many fields especially for environmental science or engineering. However, the effect of acid washing treatment on the morphology or phase and pore structures of titania nanotubes (TNs) has not still been clearly investigated. The variation of morphology, formation mechanism, phase structure, and pore structure of TN were thus characterized with FE-SEM, TEM, XRD, and N2 BET isotherms, respectively in the present work. Titania nanotube synthesized via a simple hydrothermal chemical process formed a crystalline structure with open-ended and multiwall morphologies. The XRD patterns and N2 BET isotherms implied that the acid washing techniques could improve the TN surface area and the pore size distribution up to 292 m2 g−1 and 40–60 nm, respectively. According to EXAFS/XANES spectra, the structure of the TN is closer to the anatase specimen and much more correlated with octahedral structure. Effects of the pore structure variation on basic dye (Basic Green 5 (BG5)) adsorption by TN were discussed in the present work. Moreover, the adsorption ability, mechanisms, and kinetics of BG5 dye onto TN were also examined with the aid of model analyses of the adsorption equilibrium and kinetic data. Therefore, the potential of TN for the removal of BG5 dye contaminant from wastewaters implied that further development would be warranted.
Starting Page	47
Ending Page	56
Page Count	10
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	16
Issue Number	1-2
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2010-05-19
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Titania nanotube BG5 basic dye Hydrothermal method Adsorption kinetics XANES/EXAFS Engineering Thermodynamics, Heat and Mass Transfer Surfaces and Interfaces, Thin Films Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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