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Journal of Environmental Nanotechnology

(A Quarterly Peer-reviewed and Refereed International Journal)
ISSN(Print):2279-07 48; ISSN(Online):2319-5541
CODEN:JENOE2

Enhanced Methylene Blue dye degradation by newly synthesized Ag2o-Tio2 heterostructure

Abstract

Silver (Ag) coated TiO2 heterostructure was prepared by precipitation method using equal ratio of silver nitrate (AgNO3) and as-synthesized TiO2 nanobelt. The X-ray diffraction study results indicate high crystalline nature of the Ag2O/TiO2 heterostructure. The surface morphology of Ag2O/TiO2 heterostructure has thoroughly been investigated by Scanning Electron Microscopy (SEM). The stability and thermal studies of Ag2O/TiO2 heterostructure were examined by using Zeta analyzer and Differential Scanning Calorimetry, respectively. Photocatalytic activity studies were carried out using Methylene Blue (MB) as a model molecule to highlight the consequence of Ag2O/TiO2 heterostructure. The reuse of Ag2O/TiO2 nanobelt after annealing shows the excellent recovery of the catalyst. These studies may contribute to additional applications of hierarchical Ag2O/TiO2 heterostructure membranes, including harnessing sunlight for water treatment and photo catalytic activity.

Article Type: Research Article

Corresponding Author:

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Daniel Thangadurai1,  D. Sriprabha 2,  T. Mohankumar 3,  D. Nataraj 4.  

1. Professor and Head

2, 3. Department of Nanotechnology, Sri Ramakrishna Engineering College, Coimbatore, TN, India.

4. Department of Physics, Bharathiar University, Coimbatore, TN, India.

J. Environ. Nanotechnol. Volume 3, No.4 pp. 105-111
ISSN: 2279-0748 eISSN: 2319-5541
-ENT 144132.pdf
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Reference

Bergmann, K. and O'Konski, C. T., A Spectroscopic study of methylene blue monomer, dimer and complexes with montmorillonite, J. Phys. Chem. 67, 2169(1963).
doi:10.1021/j100804a048
Dai, Y. Q., Cm. M. Cobley, Zeng, J., Sun, Y. M. and Xia, Y. N., Synthesis of Anatase
TiO2 Nanocrystals with Exposed {001} Facets, Nano Lett. 9, 2455(2009).
doi:10.1021/nl901181n
Dodda, A., McKinleya, A., Tsuzuki, T. and Saunders, M., Optical and photocatalytic properties of nanocrystalline TiO 2 synthesised by solid-state chemical reaction,J. Phys. Chem. of Sol. 68, 2341(2007).
doi:10.1016% 2fj.jpcs. 2007. 07 .008
Hegde, M. S., Nagaveni, K. and Roy, S., Synthesis, structure and photocatalytic activity of nano TiO2 and nano Ti1−xMxO2−δ (M = Cu, Fe, Pt, Pd, V, W, Ce, Zr), J. Physics 65, 641(2005).
Henderson, M. A., White, J. M., Uetsuka, H. and Onishi, H., Photochemical Charge Transfer and Trapping at the Interface between an Organic Adlayer and an Oxide Semiconductor, J. Am. Chem. Soc. 125, 14974(2003).
doi: 10.1021/ja037764+.
Hu, A., Liang, R., Zhang, X., Kurdi, S., Luong, D., Huang, H., Peng, P., Marzbanrad, E., Oakes, K. D., Zhou, Y. and Servos, M. R., Enhanced photocatalytic degradation of dyes by TiO2 nanobelts with hierarchical structures, J. Photochem. Photobio. A: Chem., 256, 7(2013).
doi: 10.1016/j.jphotochem.2013.01.015.
Lazzeri, M., Vittadini, A. and Selloni, A., Structure and energetics of stoichiometric TiO2 anatase surfaces, Phys. Rev. B 63, 155409(2001).
doi:10.1103/PhysRevB.63.155409
Li, G. and Gray, K. A., The solid-solid interface: explaining the high and unique photocatalytic
reactivity of TiO2-based nanocomposite materials, Chemical Physics, 339, 173(2007).
doi:10.1016/j.chemphys.2007.05.023
Li, G., Ciston, S., Saponjic, Z. V., Chena, L., Dimitrijevic, N. M., Rajh, T. and Graya, K. A.,
Synthesizing mixed-phase TiO2 nanocomposites using a hydrothermal method for photo-oxidation and photoreduction applications, J. Catalysis, 253, 105(2008).
doi:10.1016/j.jcat.2007.10.014
Linsebigler, A. L., Lu, G. and Yates, J. T., Jr., Photocatalysis on TiO2 Surfaces: Principles,
Mechanisms, and Selected Results,Chem. Rev. 95, 735(1995).
doi:10.1021/cr00035a013
Liu, Y., Shu, W., Chen, K., Peng, Z. and Chen, W., Enhanced Photothermocatalytic Synergetic Activity Toward Gaseous Benzene for Mo+CCodoped Titanate Nanobelts, ACS Catal. 2, 2557(2012).
doi: 10.1021/cs300501e
Mukhopadhyay, A., Basak, S., Kishore Das, J., Medda, S. K., Chattopadhyay, K. and De, G., Ag−TiO2 Nanoparticle Codoped SiO2 Films on ZrO2 Barrier-Coated Glass Substrates with Antibacterial Activity in Ambient Condition, ACS Appl. Mater. Interfaces, 2, 2540(2010).
doi: 10.1021/am100363d
Skoog, D. A., Holler, F. J. and Nieman, T., Principles of Instrumental Analysis (5 edn.),  ewYork, pp. 805(1998).

Sze-Mun Lam, Jin-Chung Sin, Ahmad Zuhairi Abdullah, Abdul Rahman Mohamed, Efficient
photodegradation of resorcinol with Ag2O/ZnO nanorods heterostructure under a compact
fluorescent lamp irradiation, Chemical Papers- Slovakacademy of Sciences, 67(10) 1277–
1284(2013).
doi:10.2478/s11696-013-0395-8.
Wang Ya-Lan, Zhou Zhang-Kai, Peng Xiao-Niu, Zhou Li, Hao Zhong-Hua and Wang Qu-Quan,
The Fluorescence Dynamics of Chlorophyll a and Sodium Magnesium Chlorophyllin, Chin. Phys.Lett. 30, 098702 (2013).
doi:10.1088/0256-307X/30/9/098702
Wang, J., Tafen, D. N., James P. Lewis, Hong, Z., Manivannan, A., Zhi, M., Li, M. and Wu, N., J. Am. Chem. Soc. 156, 345 (2009).
Wang, Y., Du, G., Liu, H., Liu, D., Qin, S., Wang, N., Hu, C., Tao, X., Jiao, J., Wang, J. and Wang, Z. L., Nanostructured Sheets of Ti O Nanobelts for Gas Sensing and Antibacterial Applications†, Adv. Funct. Mater. 18, 7(2008).
doi: 10.1002/adfm.200701120
Xiong, Z. and Zhao, X., Nitrogen-Doped Titanate- Anatase Core–Shell Nanobelts with Exposed {101} Anatase Facets and Enhanced Visible Light Photocatalytic Activity, J. Am. Chem. Soc. 134, 5754 (2012).
doi: 10.1021/ja300730c
Xu, F., Benavides, J., Ma, X. and Cloutier, S. G., Interconnected T i O2 Nanowire Networks for PbS Quantum Dot Solar Cell Applications, J. Nanotech. Article ID 709031(2012).
doi:10.1155/2012/709031
Zhou, W., Liu, H., Robert I. Boughton, Du, G., Lin, J., Wang, J. and Liu, D., One-dimensional singlecrystalline Ti–O based nanostructures: properties, synthesis, modifications and applications, J. Mater. Chem. 20, 5993(2010).
doi: 10.1039/B927224K
Zhou, W., Liu, H., Wang, J., Liu, D., Du, G. and Cui, J., ACS Appl. M ater. & Interfac. 23, 394(2004).

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