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Article

Solution-phase Synthesis of Zn-doped GaN Photocatalysts: Morphology, Composition, and Catalytic Activity towards Methylene Blue Degradation and 4-nitroaniline Conversion

1Department of Chemistry, Florida A&M University, Tallahassee, FL, USA

2Center for Energy, Environment, and Sustainability, Wake Forest University, Winston Salem, NC, USA

3Department of Chemistry, Wake Forest University, Winston Salem, NC, USA

4Department of Physics, Wake Forest University, Winston Salem, NC, USA


American Journal of Nanomaterials. 2017, Vol. 5 No. 2, 43-50
DOI: 10.12691/ajn-5-2-1
Copyright © 2017 Science and Education Publishing

Cite this paper:
Keerthi Senevirathne, Sanuja Pitigala, Shyamalee Ramaraj, Abdou Lachgar, Richard T. Williams. Solution-phase Synthesis of Zn-doped GaN Photocatalysts: Morphology, Composition, and Catalytic Activity towards Methylene Blue Degradation and 4-nitroaniline Conversion. American Journal of Nanomaterials. 2017; 5(2):43-50. doi: 10.12691/ajn-5-2-1.

Correspondence to: Keerthi  Senevirathne, Department of Chemistry, Florida A&M University, Tallahassee, FL, USA. Email: keerthi.senevirathne@famu.edu

Abstract

Solution based synthesis methods; refluxing, base hydrolysis, and hydrothermal synthesis were successfully applied to synthesize shape anisotropic Zn doped Ga2O3, followed by subsequent nitridation in ammonia to make corresponding nitride photocatalysts. The catalysts were characterized using different physical characterization methods to evaluate their structure, shape and composition. Photocatalytic methylene blue (MB) degradation and selective hydrogenation of aromatic nitro organic compound 4-nitroaniline (4-NA) were selected to probe reactions under uv-visible and visible light irradiation. Zn containing nitride catalysts are clearly active on MB degradation and 4-NA conversion under visible light irradiation.

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