Physical Properties and Photocatalytic Activity of Fe- and Co-Doped ZnO Nanoparticles Synthesized via Surfactant Modified Co-Precipitation

Abstract

Fe- and Co-doped ZnO with various doping concentrations have been synthesized by co-precipitation method in the presence of sodium dodecyl sulfate as anionic surfactant. The obtained sample powders were characterized by X-ray diffraction, Fourier transform infrared absorption, UV-visible diffuse reflectance spectroscopy, electron spin resonance spectroscopy and Brunauer-Emmet-Teller (BET) method. The photocatalytic activity was evaluated by observing the decolorization of methylene blue under UV light irradiation. The results revealed that the addition of a dopant atom significantly enhanced the photocatalytic activity.

Modified structural, surface morphological and optical studies of Li3+ swift heavy ion irradiation on zinc oxide nanoparticles

“…The hexagonal unit cell has two lattice parameters, 'a' and 'c', in the ratio of c/a ¼ 1.633 and belongs to the space group symmetry of P6 3 mc -C 4 6v (a ¼ 0.3296 and c ¼ 0.52065 nm). [17][18][19][20] However, electrical conductivity in the wide band gap of ZnO semiconductors is due to intrinsic defects such as wide band gap and oxygen vacancies. It has been used considerably for its optoelectronic, catalytic, electrical and photochemical properties in electrooptical devices such as UV light emitters.…”

“…In addition, it affects the structural and optical properties and can considerably shi the optical absorption towards the visible region. [17][18][19][20] However, electrical conductivity in the wide band gap of ZnO semiconductors is due to intrinsic defects such as wide band gap and oxygen vacancies. Therefore, substitution of TM metals into ZnO semiconductors changes structural and optical properties drastically.…”