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Room Temperature Engineering Crystal Facet of $Cu_{2}$O for Photocatalytic Degradation of Methyl Orange
| Content Provider | MDPI |
|---|---|
| Author | Li, Jiwen He, Meizi Yan, Jiankun Liu, Jiahui Zhang, Jiaxin Ma, Jingjun |
| Copyright Year | 2022 |
| Description | Cuprous oxide $(Cu_{2}$O) has received enormous interest for photocatalysis owing to its narrow band gap of 2.17 eV, which is beneficial for visible-light absorption. In this work, we s쳮ded in synthesizing $Cu_{2}$O nanocrystals with two morphologies, cube and sphere, at room temperature via a simple wet-chemistry strategy. The morphologies of $Cu_{2}$O change from cube to sphere when adding PVP from 0 g to 4 g and the mainly exposed crystal faces of cubic and spherical $Cu_{2}$O are (100) and (111), respectively. The photocatalytic properties of the as-prepared $Cu_{2}$O were evaluated by the photocatalytic degradation of methyl orange (MO). Cubic $Cu_{2}$O(100) showed excellent photocatalytic activity. After the optical and photoelectric properties were investigated, we found that cubic $Cu_{2}$O(100) has better photoelectric separation efficiency than spherical $Cu_{2}$O(111). Finally, the possible mechanism was proposed for cubic $Cu_{2}$O(100) degrading MO under visible light. |
| Starting Page | 1697 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano12101697 |
| Journal | Nanomaterials |
| Issue Number | 10 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-05-16 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Environmental Engineering Environmental Sciences Photocatalysis Cu2o Morphology Adsorption Energy Engineering Crystal Facet |
| Content Type | Text |
| Resource Type | Article |
