Synthesis of Fe-Doped TiO₂ for Photocatalytic Processes under UV-Visible Light: Effect of Preparation Methods on Crystal Size—A Systematic Review Study

ABSTRACT

Objective is to investigate effect of preparation methods on crystal size at synthesis of Fe-doped TiO₂ as a systematic review study. All references (455) were found by manual duplication and finally n = 136 records remained. After reading their titles, abstracts and full-texts, 58 relevant full-text articles were included based on the considered exclusion criteria. Finally, 21 relevant full-text articles, which consisted of crystal size data, were selected to conduct this systematic review study. The relevant publications were from 2005 to 2019. In 14 studies (66.67%), Fe-doped TiO₂ was prepared by sol-gel method. In many of the studies related to sol-gel method, crystal sizes range from 5 to 25 nm. Among the applied methods for preparation of Fe-doped TiO₂, ultrasonic and microwave methods on crystal sizes 58 nm and 170.24 nm were the highest volume. In general, even though the studies used the same procedures, they reported different results. It is concluded that in these studies, in addition to preparation methods, other parameters could be effected on the crystal sizes, such as type of Ti procurers. However, that should be investigated in future studies as a systematic review.

Keywords:

• Fe-doped TiO₂
• UV-visible
• crystal size
• systematic review

Acknowledgments

The present study was adapted from the PhD thesis of Mehrdad Moslemzadeh at Iran University of Medical Sciences. The present project was financially funded by grant number 98-4-2-16676 from Iran University of Medical Sciences.

Additional information

Funding

The present project was financially funded by grant number 98-4-2-16676 from the Iran University of Medical Sciences