Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99232
Title: Assembling graphitic-carbon-nitride with cobalt-oxide-phosphate to construct an efficient hybrid photocatalyst for water splitting application
Authors: Lee, Rui-Lin
Tran, Phong D.
Pramana, Stevin S.
Chiam, Sing Yang
Ren, Yi
Meng, Siyuan
Wong, Lydia Helena
Barber, James
Keywords: DRNTU::Engineering::Materials
Issue Date: 2013
Source: Lee, R.-L., Tran, P. D., Pramana, S. S., Chiam, S. Y., Ren, Y., Meng, S. (2013). Assembling graphitic-carbon-nitride with cobalt-oxide-phosphate to construct an efficient hybrid photocatalyst for water splitting application. Catalysis science & technology, 3(7), 1694-1698.
Series/Report no.: Catalysis science & technology
Abstract: A scalable method to load a cobalt-oxide-phosphate (CoPi) water oxidation electrocatalyst onto the surface of a mesoporous graphitic-carbon-nitride (mpg-CNx) semiconductor is reported. This procedure resulted in significant enhancement of photocatalytic activity of the mpg-CNx in water oxidation. The optimal loading gave an oxygen evolution rate of up to approximately 1 mmol O2 gcat−1 h−1 under 100 mW cm−2 visible light illumination in a pH 7 phosphate buffer containing Ag+ or Na2S2O8 as an electron scavenger which was 400 times faster compared with that of the untreated mpg-CNx catalyst. Under visible light illumination and by employing a hole scavenger e.g. methanol, CoPi was converted into a H2-CoCat HER electrocatalyst which significantly promoted the H2 generation photocatalytic activities of mpg-CNx. Without any electron/hole scavengers, the mpg-CNx–CoPi–H2-CoCat composite was able to catalyse the overall water splitting process.
URI: https://hdl.handle.net/10356/99232
http://hdl.handle.net/10220/17753
DOI: 10.1039/c3cy00054k
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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