Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review

Titanium dioxide nanoparticles (TiO<sub>2</sub> NPs) have some limitations, such as their low surface area, high bandgap energy, and low recycling ability. To overcome these limitations, TiO<sub>2</sub> can be prepared in microscale/macroscale structures. TiO<sub>2</...

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Main Authors: Vu Khac Hoang Bui, Vinh Van Tran, Ju-Young Moon, Duckshin Park, Young-Chul Lee
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/10/6/1190
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author Vu Khac Hoang Bui
Vinh Van Tran
Ju-Young Moon
Duckshin Park
Young-Chul Lee
author_facet Vu Khac Hoang Bui
Vinh Van Tran
Ju-Young Moon
Duckshin Park
Young-Chul Lee
author_sort Vu Khac Hoang Bui
collection DOAJ
description Titanium dioxide nanoparticles (TiO<sub>2</sub> NPs) have some limitations, such as their low surface area, high bandgap energy, and low recycling ability. To overcome these limitations, TiO<sub>2</sub> can be prepared in microscale/macroscale structures. TiO<sub>2</sub> microscale structures, in comparison with TiO<sub>2</sub> nanopowder, have higher surface areas, more tunable pore structures, and better top photocatalytic activity. In contrast, for TiO<sub>2 </sub>macroscale structures, although the surface area is lower than TiO<sub>2</sub> nanopowder in many cases, they still achieve similar or better photocatalytic performance due to their unique properties. Moreover, both TiO<sub>2</sub> microscale and macroscale structures can be easily recovered from reaction media. The difference between these two types of TiO<sub>2</sub> structures is a function not only of size but also of the preparation process. Every type of TiO<sub>2</sub> structure has its own advantages and disadvantages, as will be discussed further in the following pages. Future perspectives on this research field also will be discussed.
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spelling doaj.art-dabf2d071e324ea98f5e63d74edc30e42023-11-20T04:15:06ZengMDPI AGNanomaterials2079-49912020-06-01106119010.3390/nano10061190Titanium Dioxide Microscale and Macroscale Structures: A Mini-ReviewVu Khac Hoang Bui0Vinh Van Tran1Ju-Young Moon2Duckshin Park3Young-Chul Lee4Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, KoreaDepartment of BioNano Technology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, KoreaDepartment of Beauty Design Management, Hansung University, 116 Samseongyoro-16gil, Seoul 02876, KoreaKorea Railroad Research Institute (KRRI), 176 Cheoldobakmulkwan-ro, Uiwang-si, Gyeonggi-do 16105, KoreaDepartment of BioNano Technology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, KoreaTitanium dioxide nanoparticles (TiO<sub>2</sub> NPs) have some limitations, such as their low surface area, high bandgap energy, and low recycling ability. To overcome these limitations, TiO<sub>2</sub> can be prepared in microscale/macroscale structures. TiO<sub>2</sub> microscale structures, in comparison with TiO<sub>2</sub> nanopowder, have higher surface areas, more tunable pore structures, and better top photocatalytic activity. In contrast, for TiO<sub>2 </sub>macroscale structures, although the surface area is lower than TiO<sub>2</sub> nanopowder in many cases, they still achieve similar or better photocatalytic performance due to their unique properties. Moreover, both TiO<sub>2</sub> microscale and macroscale structures can be easily recovered from reaction media. The difference between these two types of TiO<sub>2</sub> structures is a function not only of size but also of the preparation process. Every type of TiO<sub>2</sub> structure has its own advantages and disadvantages, as will be discussed further in the following pages. Future perspectives on this research field also will be discussed.https://www.mdpi.com/2079-4991/10/6/1190TiO<sub>2</sub>macroscale structuresmicroscale structuresenvironmental treatmentphotocatalytic
spellingShingle Vu Khac Hoang Bui
Vinh Van Tran
Ju-Young Moon
Duckshin Park
Young-Chul Lee
Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review
Nanomaterials
TiO<sub>2</sub>
macroscale structures
microscale structures
environmental treatment
photocatalytic
title Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review
title_full Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review
title_fullStr Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review
title_full_unstemmed Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review
title_short Titanium Dioxide Microscale and Macroscale Structures: A Mini-Review
title_sort titanium dioxide microscale and macroscale structures a mini review
topic TiO<sub>2</sub>
macroscale structures
microscale structures
environmental treatment
photocatalytic
url https://www.mdpi.com/2079-4991/10/6/1190
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AT vinhvantran titaniumdioxidemicroscaleandmacroscalestructuresaminireview
AT juyoungmoon titaniumdioxidemicroscaleandmacroscalestructuresaminireview
AT duckshinpark titaniumdioxidemicroscaleandmacroscalestructuresaminireview
AT youngchullee titaniumdioxidemicroscaleandmacroscalestructuresaminireview