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Factors influencing the photocatalytic degradation of Rhodamine B by TiO2-coated non-woven paper

Paper ID Volume ID Publish Year Pages File Format Full-Text
27735 44039 2008 6 PDF Available
Title
Factors influencing the photocatalytic degradation of Rhodamine B by TiO2-coated non-woven paper
Abstract

The photocatalytic degradation of Rhodamine B (RhB) has been investigated in aqueous solutions using TiO2-coated non-woven paper as photocatalyst. The experiments were carried out to investigate the factors that influence the RhB photocatalytic degradation, such as adsorption, initial concentration of dye solution, temperature, and some inorganic species commonly present in real wastewaters such as Cl−, NO3−, SO42−, CH3COO− and HPO42−. The experimental results show that adsorption is an important parameter in controlling the apparent kinetic order of the degradation. The photocatalytic reaction is favoured by a high concentration in respect to Langmuir–Hinshelwood model. The photodegradation was temperature-dependent with a high degradation rate at high temperature. The presence of the Cl−, CH3COO− and HPO42− ions leads to the reduction of the effectiveness of the photodegradation. However, the presence of SO42− increases the rate of the degradation.

Keywords
Photocatalytic degradation; Rhodamine B; TiO2; Non-woven paper; Inorganic salts
First Page Preview
Factors influencing the photocatalytic degradation of Rhodamine B by TiO2-coated non-woven paper
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 195, Issues 2–3, 15 April 2008, Pages 346–351
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering