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In Situ Construction of Bronze/Anatase $TiO_{2}$ Homogeneous Heterojunctions and Their Photocatalytic Performances
Content Provider | MDPI |
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Author | Li, Yong Zhang, Ming-Qing Liu, Yan-Fang Sun, Ya-Xun Zhao, Qing-Hua Chen, Tian-Lu Chen, Yuan-Fu Wang, Shi-Feng |
Copyright Year | 2022 |
Description | Photocatalytic degradation is one of the most promising emerging technologies for environmental pollution control. However, the preparation of efficient, low-cost photocatalysts still faces many challenges. $TiO_{2}$ is a widely available and inexpensive photocatalyst material, but improving its catalytic degradation performance has posed a significant challenge due to its shortcomings, such as the easy recombination of its photogenerated electron–hole pairs and its difficulty in absorbing visible light. The construction of homogeneous heterojunctions is an effective means to enhance the photocatalytic performances of photocatalysts. In this study, a $TiO_{2}(B)/TiO_{2}$(A) homogeneous heterojunction composite photocatalyst (with B and A denoting bronze and anatase phases, respectively) was successfully constructed in situ. Although the construction of homogeneous heterojunctions did not improve the light absorption performance of the material, its photocatalytic degradation performance was substantially enhanced. This was due to the suppression of the recombination of photogenerated electron–hole pairs and the enhancement of the carrier mobility. The photocatalytic ability of the $TiO_{2}(B)/TiO_{2}$(A) homogeneous heterojunction composite photocatalyst was up to three times higher than that of raw $TiO_{2}$ (pure anatase $TiO_{2}$). |
Starting Page | 1122 |
e-ISSN | 20794991 |
DOI | 10.3390/nano12071122 |
Journal | Nanomaterials |
Issue Number | 7 |
Volume Number | 12 |
Language | English |
Publisher | MDPI |
Publisher Date | 2022-03-29 |
Access Restriction | Open |
Subject Keyword | Nanomaterials Environmental Engineering Environmental Sciences Homogeneous Heterojunctions Photocatalyst Bronze Tio2 Anatase Tio2 Photocatalytic Degradation |
Content Type | Text |
Resource Type | Article |