A Low-Cost Metal-Free Photocatalyst Based on Black Phosphorus
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Article number | 1801321 |
Journal / Publication | Advanced Science |
Volume | 6 |
Issue number | 1 |
Online published | 9 Nov 2018 |
Publication status | Published - 9 Jan 2019 |
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DOI | DOI |
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Attachment(s) | Documents
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85056299863&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(5eea5a3a-bd0a-4503-9aab-6c229183543a).html |
Abstract
An efficient metal-free photocatalyst composed of black phosphorus (BP) and graphitic carbon nitride (CN) is prepared on a large scale by ball milling. Using economical urea and red phosphorus (RP) as the raw materials, the estimated materials cost of BP/CN is 0.235 Euro per gram. The BP/CN heterostructure shows efficient charge separation and possesses abundant active sites, giving rise to excellent photocatalytic H2 evolution and rhodamine B (RhB) degradation efficiency. Without using a co-catalyst, the metal-free BP/CN emits H2 consistently at a rate as large as 786 µmol h−1 g−1 and RhB is decomposed in merely 25 min during visible-light irradiation. The corresponding electron/hole transfer and catalytic mechanisms are analyzed and described. The efficient metal-free catalyst is promising in visible-light photocatalysis and the simple ball-milling synthetic method can be readily scaled up.
Research Area(s)
- 2D materials, black phosphorus, hydrogen evolution, photocatalysis
Citation Format(s)
A Low-Cost Metal-Free Photocatalyst Based on Black Phosphorus. / Wen, Min; Wang, Jiahong; Tong, Ruifeng et al.
In: Advanced Science, Vol. 6, No. 1, 1801321, 09.01.2019.
In: Advanced Science, Vol. 6, No. 1, 1801321, 09.01.2019.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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