Question

Which of the following techniques is most suitable for determining the size and morphology of nanoparticles?

• A. UV-Vis Spectroscopy
• B. Transmission Electron Microscopy (TEM)
• C. Fourier Transform Infrared Spectroscopy (FTIR)
• D. Atomic Absorption Spectroscopy (AAS)

Hint:

TEM provides high-resolution images that are essential for analyzing the physical structure of nanoparticles, making it the preferred method for size and morphology determination.

Answer 1

The Correct Option is B

Transmission Electron Microscopy (TEM) enables nanoscale visualization of nanoparticle size, shape, and morphology. Unlike spectroscopic methods (UV-Vis for optical properties, FTIR for molecular vibrations, AAS for elemental composition), TEM provides direct imaging for precise determination of nanoparticle dimensions and structural features.