Synthesis, Characterization, Photocatalytic and Photovoltaic Applications of a Novel Semiconductor CuPbO Nanomaterial

P. Ponnambalam1, J. Kamalakkannan2, R. Jayaseelan3, M. Arokia Doss4 and G. Selvi1,5,*

1Research and Development Centre, Bharathiar University, Coimbatore-641046, India

2PG & Research Department of Chemistry, Srivinayaga College of Arts and Science, Ulundurpet-606213, India

3PG Department of Chemistry, Dr. R.K.S. College of Arts and Science, Kallakurichi-606213, India

4Department of Chemistry, St. Joseph University, Dimapur-797115, India

5Department of Chemistry, P.S.G.R. Krishnammal College for Women, Peelamedu, Coimbatore-641004, India

*Corresponding author: E-mail: selvi_gv@rediffmail.com

Abstract

A new semiconductor CuPbO nanomaterial has been prepared where lead nitrate and copper nitrate were co-precipitated to form this compound. The high-resolution scanning electron microscopic studies revealed that CuPbO possesses a nanobundle flower-like structure. XRD confirmed the occurrence of Cu, Pb & O in the fabricated compound. The size of the nanomaterial is determined for being ~200 nm by high-resolution transmission electron microscopic analysis. The photoluminescence analysis showed the possible electron transfer and crevasses between Cu and PbO causes recombine of electron-hole pairs. The ultraviolet-visible diffuse reflectance spectral analysis showed that the nanomaterial has a low band gap energy. The material was found to be a good recyclable photocatalyst in the decomposition of diamond green B dye. As a photoelectrode, CuPbO proved its efficiency in dye-sensitized solar cell applications.

Keywords

Co-precipitaion, Semiconductor oxide, Diamond green B dye, Photocatalysis, Dye-sensitized solar cell.

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