Enhanced Solar Light Absorption and Photoelectrochemical Conversion Using TiN Nanoparticle-Incorporated C3N4-C Dot Sheets

Shinde, Satish Laxman and Ishii, Satoshi and Dao, Thang Duy and Sugavaneshwar, Ramu Pasupathi and Takei, Toshiaki and Nanda, Kiruna Kar and Nagao, Tadaaki (2018) Enhanced Solar Light Absorption and Photoelectrochemical Conversion Using TiN Nanoparticle-Incorporated C3N4-C Dot Sheets. In: ACS APPLIED MATERIALS & INTERFACES, 10 (3). pp. 2460-2468.

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Abstract

In this work, a promising strategy to increase the broadband solar light absorption was developed by synthesizing a composite of metal-free carbon nitride carbon dots (C3N4- C dots) and plasmonic titanium nitride (TiN) nanoparticles (NPs) to improve the photoelectrochemical water-splitting performance under simulated solar radiation. Hot-electron injection from plasmonic TiN NPs to C3N4 played a role in photocatalysis, whereas C dots acted as catalysts for the decomposition of H2O2 to O-2. The use of C dots also eliminated the need for a sacrificial reagent and prevented catalytic poisoning. By incorporating the TiN NPs and C dots, a sixfold improvement in the catalytic performance of C3N4 was observed. The proposed approach of combining TiN NPs and C dots with C3N4 proved effective in overcoming low optical absorption and charge recombination losses and also widens the spectral window, leading to improved photocatalytic activity.

Item Type:	Journal Article
Publication:	ACS APPLIED MATERIALS & INTERFACES
Additional Information:	Copy right fro the article belong to the AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	02 Mar 2018 14:55
Last Modified:	04 Oct 2018 15:25
URI:	http://eprints.iisc.ac.in/id/eprint/59049

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