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Layer-by-Layer Self-Assembled Metal-Ion- (Ag-, Co-, Ni-, and Pd-) Doped TiO2 Nanoparticles: Synthesis, Characterisation, and Visible Light Degradation of Rhodamine B
Joint Authors
Mahlambi, Mphilisi M.
Mishra, Ajay K.
Mishra, Shivani B.
Raichur, Ashok M.
Mamba, Bhekie B.
Krause, Rui W.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-16
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Metal-ion- (Ag, Co, Ni and Pd) doped titania nanocatalysts were successfully deposited on glass slides by layer-by-layer (LbL) self-assembly technique using a poly(styrene sulfonate sodium salt) (PSS) and poly(allylamine hydrochloride) (PAH) polyelectrolyte system.
Solid diffuse reflectance (SDR) studies showed a linear increase in absorbance at 416 nm with increase in the number of m-TiO2 thin films.
The LbL assembled thin films were tested for their photocatalytic activity through the degradation of Rhodamine B under visible-light illumination.
From the scanning electron microscope (SEM), the thin films had a porous morphology and the atomic force microscope (AFM) studies showed “rough” surfaces.
The porous and rough surface morphology resulted in high surface areas hence the high photocatalytic degradation (up to 97% over a 6.5 h irradiation period) using visible-light observed.
Increasing the number of multilayers deposited on the glass slides resulted in increased film thickness and an increased rate of photodegradation due to increase in the availability of more nanocatalysts (more sites for photodegradation).
The LbL assembled thin films had strong adhesion properties which made them highly stable thus displaying the same efficiencies after five (5) reusability cycles.
American Psychological Association (APA)
Mahlambi, Mphilisi M.& Mishra, Ajay K.& Mishra, Shivani B.& Raichur, Ashok M.& Mamba, Bhekie B.& Krause, Rui W.. 2012. Layer-by-Layer Self-Assembled Metal-Ion- (Ag-, Co-, Ni-, and Pd-) Doped TiO2 Nanoparticles: Synthesis, Characterisation, and Visible Light Degradation of Rhodamine B. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-997535
Modern Language Association (MLA)
Mahlambi, Mphilisi M.…[et al.]. Layer-by-Layer Self-Assembled Metal-Ion- (Ag-, Co-, Ni-, and Pd-) Doped TiO2 Nanoparticles: Synthesis, Characterisation, and Visible Light Degradation of Rhodamine B. Journal of Nanomaterials No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-997535
American Medical Association (AMA)
Mahlambi, Mphilisi M.& Mishra, Ajay K.& Mishra, Shivani B.& Raichur, Ashok M.& Mamba, Bhekie B.& Krause, Rui W.. Layer-by-Layer Self-Assembled Metal-Ion- (Ag-, Co-, Ni-, and Pd-) Doped TiO2 Nanoparticles: Synthesis, Characterisation, and Visible Light Degradation of Rhodamine B. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-997535
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-997535