A green chemical method for synthesis of ZnO nanoparticles from solid-state decomposition of Schiff-bases derived from amino acid alanine complexes |
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| Affiliation: | 1. Department of Nanomaterials and Nanocoatings, Institute for Color Science and Technology, Tehran, Iran;2. Intel Corporation, IMO-RA, RA2, Hillsboro, OR 97124, USA;1. Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran;2. Departamento de Química Inorgánica, Universidade de Vigo, Facultade de Química, Edificio de Ciencias Experimentais, 36310 Vigo (Galicia), Spain;3. Eduard-Zintl-Institute for Inorganic and Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Str 4, 64287 Darmstadt, Germany;4. Department of Chemistry, Payame Noor University (PNU), 19395-4697 Tehran, Iran;5. Materials Science Department, Alarich-Weiss-Str. 2, 64287 Darmstadt, Germany;6. Department of Biology, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran;1. Department of Chemistry, Raghunathpur College, Purulia 723133, India;2. Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Mohali 140 306, India;3. Department of Physics, Raghunathpur College, Purulia 723133, India;1. Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran;2. Department of Biology, Shahid Bahonar University of Kerman, Kerman, Iran;3. Department of Chemistry, Tulane University, New Orleans, LA, USA;1. Department of Chemistry, Girls Campus, King Abdulaziz University, P.O. Box 6171, Jeddah 21442, Saudi Arabia;2. Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt |
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| Abstract: | As a part of the desire to save the environment via green chemistry practices, we report a novel method to synthesize ZnO nanoparticles from nontoxic and biocompatible chemicals where no pollutant or combustible side product is produced. In this recipe, a binary Zn(II) Schiff-base complex is obtained from alanine where water is used as solvent and a biologically compatible amino acid instead of toxic amines is used as a nitrogen source. The Schiff-base complex is subsequently heat treated to synthesize ZnO particles via a solid-state decomposition process. The effect of post heat treatment temperature (400, 500, and 600 °C) on microstructure and defect content of ZnO nanoparticles is investigated. The formation of single phase ZnO particles is confirmed by XRD θ–2θ patterns and FTIR spectra. TEM and SEM micrographs indicate the formation of nanoparticles with a particle size of 50–110 nm for different heat treatment temperatures. Combing XRD, FTIR, and PL results, it is revealed that the samples heat treated at intermediate temperatures (500 °C) possess the lowest defect concentration and a favorable crystallinity. This study emphasizes on green chemistry and synthesis of nanomaterials through ecofriendly methods to save our planet and its reservoirs for future and next generations. |
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| Keywords: | Zinc oxide Complex Alanine Amino acids Nanoparticles |
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