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2 International Letters of Chemistry, Physics and Astronomy

2 2015

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Activated Charcoal Supported Cadmium Doped TiO2 for Photocatalytic and Antibacterial Applications

Prabha S., Chandraboss V. L., Kamalakannan J., Senthilvelan S.

International Letters of Chemistry, Physics and Astronomy

2015

Vol. 44

108--123

The photocatalytic activity was studied under UV light using AC-Cd/TiO2 prepared via precipitation method and characterized by powder X-ray diffraction (XRD) , high resolution scanning electron micrographs (HR-SEM) with energy dispersive X-ray analysis (EDX), photoluminescence (PL) and Fourier transform Raman analysis (FT-RAMAN). The enhanced photo catalytic activity of the AC-Cd/TiO2 is demonstrated through photodegradation of methylene blue under UV light radiation at 365 nm. The mechanism of photocatalytic effect of AC-Cd/TiO2 nanocomposite material has been discussed Further its antibacterial activity against two gram positive and two gram negative bacterial strain is studied.

Activated Carbon Loaded N, S co-doped TiO2&enspNanomaterial and Its Dye Wastewater Treatment

Kamalakkannan J., Chandraboss V. L., Prabha S., Senthilvelan S.

International Letters of Chemistry, Physics and Astronomy

2015

Vol. 47

147--164

Activated carbon (AC) loaded nitrogen and sulfur (N, S) co-doped TiO2 &ensp nanomaterial (AC-N-STiO2) was prepared by precipitation method. AC-N-S-TiO2&enspmaterial was characterized by Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray analysis (EDX), X-ray diffraction (XRD), Fourier Transform - Infrared (FT-IR), Photoluminescence (PL) and atomic force microscopy (AFM) analysis. Photodegradation and decolorization of Malachite green (MAG) and Methyl green (MEG) by using TiO2,N-S-TiO2 &enspand AC-N-S-TiO2under UV-light irradiation has been carried out. The photocatalytic activity of the AC-N-S-TiO2&enspwas higher than that of the undoped and N, S-doped TiO2,The hydroxyl radical analysis - Fluorescence technique with coumarin has been discussed. The photodegradation of MEG was well described by analyzed to be pseudo-first order according to the Langmuir-Hinshelwood representation, the high quantum yield set up to be calculated, stability and reustability of nanomaterial. AC-N-S-TiO2 &enspact as a promising photocatalyst for dye wastewater treatment under UV-light irradiation.