Loading...
Please wait, while we are loading the content...
Similar Documents
Construction of Chemically Bonded Interface of Organic/Inorganic $g-C_{3}N_{4}$/LDH Heterojunction for Z-Schematic Photocatalytic $H_{2}$ Generation
| Content Provider | MDPI |
|---|---|
| Author | Xia, Yuzhou Liang, Ruowen Yang, Min-Quan Zhu, Shuying Yan, Guiyang |
| Copyright Year | 2021 |
| Description | The design and synthesis of a Z-schematic photocatalytic heterostructure with an intimate interface is of great significance for the migration and separation of photogenerated charge carriers, but still remains a challenge. Here, we developed an efficient Z-scheme organic/inorganic $g-C_{3}N_{4}$/LDH heterojunction by in situ growing of inorganic CoAl-LDH firmly on organic $g-C_{3}N_{4}$ nanosheet (NS). Benefiting from the two-dimensional (2D) morphology and the surface exposed pyridine-like nitrogen atoms, the $g-C_{3}N_{4}$ NS offers efficient trap sits to capture transition metal ions. As such, CoAl-LDH NS can be tightly attached onto the $g-C_{3}N_{4}$ NS, forming a strong interaction between CoAl-LDH and $g-C_{3}N_{4}$ via nitrogen–metal bonds. Moreover, the 2D/2D interface provides a high-speed channel for the interfacial charge transfer. As a result, the prepared heterojunction composite exhibits a greatly improved photocatalytic $H_{2}$ evolution activity, as well as considerable stability. Under visible light irradiation of 4 h, the optimal $H_{2}$ evolution rate reaches 1952.9 μmol $g^{−1}$, which is 8.4 times of the bare $g-C_{3}N_{4}$ NS. The in situ construction of organic/inorganic heterojunction with a chemical-bonded interface may provide guidance for the designing of high-performance heterostructure photocatalysts. |
| Starting Page | 2762 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano11102762 |
| Journal | Nanomaterials |
| Issue Number | 10 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-10-18 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Inorganic Chemistry Chemically Bonded Interface Heterojunction Z-scheme G-c3n4/ldh Photocatalytic |
| Content Type | Text |
| Resource Type | Article |
