Synthesis and Enhanced Photocatalytic Activity of Ce-Doped Zinc Oxide Nanorods by Hydrothermal Method

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Aisah, N.^1 ; Gustiono, D.^1 ; Fauzia, V.^2 ; Sugihartono, I.^3 ; Nuryadi, R.^1

Agency for the Assessment and Application of Technology, Serpong, Indonesia^1

Department of Physic, Universitas Indonesia, Depok, Indonesia^2

Department of Physic, State University of Jakarta, Jakarta, Indonesia^3

关键词: Ce-doped ZnO nanorods;    Coated glass substrates;    Field emission scanning electron microscopy;    Methylene blue degradations;    N-type semiconductors;    Photocatalytic activities;    Ultrasonic spray pyrolysis;    Ultraviolet absorbance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012037/pdf
DOI  :  10.1088/1757-899X/172/1/012037

来源: IOP

【 摘 要 】

Zinc oxide (ZnO) is a n-type semiconductor material which has a wide direct band gap energy of ∼ 3.3 eV, and other interesting optical properties, hence it's potentially applied to various fields such as electronics, optoelectronics, sensors, photonic devices, and also photocatalyst. Dopant in ZnO nanostructures is an effective way to improve ZnO's structural properties in various applications. In this study, undoped and Ce doped ZnO nanorods were synthesized on ITO coated glass substrates by ultrasonic spray pyrolysis for seeding deposition and hydrothermal methods at a temperature of 950C for 2 hours for growth. X-ray diffraction, field emission scanning electron microscopy (FESEM), UV-VIS and Photoluminescence spectroscopy were used to characterize the crystal structure, surface morphology and optical properties of ZnO nanorods and the photocatalytic activity test for methylene blue degradation. The experimental results showed that 3% Cerium dopant has produced hexagonal morphology ZnO nanorod growing more uniform on (002) crystal planes, increased the intensity of ultraviolet absorbance thereby increase the degradation speed of methylene blue.