Characterization of Pure Rutile Titania Nanoparticle Prepared by Feasible Method for Coatings and Visible Light-Driven Dye Removal Application

Coatings

Jothi Ramalingam Rajabathar¹  Zuheir A. Issa¹  Dhaifallah M. Al-dhayan¹  Hamad A. Al-Lohedan¹  Chandra Sekhar Dash²  Selvaraj Arokiyaraj³  Shaik K. Khadheer Pasha⁴  Sundararajan Murugesan⁵  Jimmy Nelson Appaturi⁶ 

[1] Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;Department of Electronics and Communication Engineering, Centurion University of Technology and Management, Bhubaneswar 752050, Odisha, India;Department of Food Science and Biotechnology, Sejong University, Gwangjin-gu, Seoul 05006, Korea;Functional Nanomaterials and Polymer Nanocomposite Laboratory, Department of Physics, VIT-AP University, Amaravati 522501, India;PG & Research Department of Physics, Paavendhar College of Arts & Science, Salem 636121, India;School of Chemical Sciences, Universiti Sains Malaysia, Gelugor 11800, Pulau Pinang, Malaysia;

关键词: rutile;    catalyst;    methylene blue;    dye degradation;    nanoparticle;    titania;   

DOI  :  10.3390/coatings11101150

来源: DOAJ

【 摘 要 】

The pure phase of rutile titanium dioxide or titania (R-TiO₂) was prepared by means of a strong acidic sol–gel process followed by treatment using a hydrothermal method. The as-prepared titania nanoparticles existed purely in the rutile phase instead of the mixed anatase phase of the respective titania (R-TiO₂). The optimized reaction condition and precursor usage were the critical parameters for the formation of the particle size and uniform crystallinity of the rutile phase of TiO₂ nanoparticle fabrication. XRD (X-ray diffraction), and Raman spectroscopic techniques were utilized to confirm the formation of the pure rutile phase of titania. SEM (scanning electron microscope) and TEM (Transmission electron microscope) images showed the cauliflower-like morphology of the as-prepared R-TiO₂; reduced particle sizes of below 5 nm were observed and confirmed through high resolution images. The catalytic activity of the as-prepared R-TiO₂ was tested under visible light irradiation for methylene blue dye degradation reactions. Dye degradation occurred very effectively, even at higher concentrations of methylene blue (MB), at reduced time intervals from 5 to 3 h of reaction time. The as-prepared rutile phase of pure titania nanoparticles was applied in a catalysis application for the purpose of inducing various types of organic dye degradation or catalytic transformation in the presence of visible light.

【 授权许可】

Unknown