Photocatalytic Properties of 2D Chalcogenide Nanomaterials

Aug 1, 2025 · 1 min read
projects

As a researcher in the Young Researchers Project (#25.80012.5007.38TC), I am focused on the experimental development and structural investigation of tin-based 2D chalcogenides for environmental applications.

🔬 Research Focus & Methodology

My work bridges the gap between mechanical engineering and materials science, focusing on the liquid-phase exfoliation of layered materials.

🛠️ Ultrasound Sonication System

A major part of my contribution involves:

  • System Design: Building and operating a custom ultrasound sonication setup.
  • Optimization: Fine-tuning sonochemical parameters (amplitude, pulse, time) to maximize exfoliation efficiency.
  • Processing: Controlling the transition from bulk layered crystals to few-layer 2D nanosheets.

🧪 Investigated Materials

I am currently studying the preparation methods and structural evolution of:

  • SnS (Tin Monosulfide): Exploration of narrow bandgap properties.
  • SnS₂ (Tin Disulfide): Evaluation of photocatalytic performance under visible light.

📈 Ongoing Objectives

The project is currently in the investigation phase, with efforts dedicated to:

  1. Improving Exfoliation Yield: Reducing nanosheet thickness while maintaining lateral size.
  2. Structural Characterization: Analyzing the nanomaterials using XRD and Raman spectroscopy.
  3. Photocatalytic Testing: Evaluating the degradation efficiency of organic pollutants under irradiation.
2D Materials Nanotechnology Ultrasound Sonication Photocatalysis Materials Science SnS/SnS2
Cătălin Creciunel
Authors
Cătălin Creciunel (he/him)
Research Scientist & Embedded Systems Engineer
Cătălin Creciunel is a graduate of the Technical University of Moldova, specializing in microelectronics and nanotechnology. With over 5 years of experience as a Research Scientist, he has developed innovative solutions for semiconductor materials including ZnO, GaP, and InP through thermal treatment and anodization techniques. His expertise spans embedded software development in Python and C/C++, hardware design using CAD tools, and nanotechnology research including semiconductor and composite nanofiber production. Cătălin is dedicated to advancing technology through continuous learning and innovative contributions to microelectronics and embedded systems.