INVESTIGATING pH-DEPENDENT CHEMICAL CO-PRECIPITATION SYNTHESIS AND CHARACTERIZATION OF SnO2 NANOPARTICLES: A MULTI-CHARACTERIZATION TECHNIQUE EXPERIMENTAL ANALYSIS

Ashok Kumar, Nitika Choudhary, S. K. Singh () and Renu Sharma
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Ashok Kumar: Department of Physics, Shri JJT University, Vidyanagari, Jhunjhunu, Rajasthan 333010, India
Nitika Choudhary: Department of Physics, Shri JJT University, Vidyanagari, Jhunjhunu, Rajasthan 333010, India
S. K. Singh: ��DESM, Regional Institute of Education (RIE), NCERT, Bhubaneswar 751022, India
Renu Sharma: ��Department of Physics, JECRC University, Jaipur 303905, India

Surface Review and Letters (SRL), 2025, vol. 32, issue 09, 1-7

Abstract: Nanomaterials have attracted significant attention owing to their diverse applications across multiple domains. With its distinct mechanical and chemical properties, tin oxide (SnO2) has emerged as a notable n-type wide bandgap semiconductor among other nanomaterials used in gas sensing devices. This research employed a chemical co-precipitation approach at various pH levels to synthesize SnO2 nanoparticles. The effects of different values of pH were investigated on the compositional, structural, optical, and morphological properties of pure SnO2 nanoparticles. XRD, SEM, FTIR, EDAX, and PL spectroscopy techniques were employed to analyze the synthesized samples. XRD was used as a structural characterization technique which provided information about the crystallographic orientation, structure of crystal, and phase-purity of the nanoparticles. SEM was employed to visualize the morphology which helped to understand the size, shape, surface features, and distribution of the nanoparticles. EDAX was used to analyze the chemical purity and elemental composition. PL spectroscopy was employed to study the light emission behavior of the SnO2nanoparticles. FTIR was used to study the chemical bonds and vibrational modes present in these nanoparticles which provided information about the functional groups and surface chemistry of the nanoparticles.

Keywords: Chemical co-precipitation; SnO2 nanoparticles; photoluminescence; scanning electron microscopy; size-effect (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1142/S0218625X25501392

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