Self-assembled dye-layered double hydroxide-Pt nanoparticles: A novel H 2 evolution system with remarkably enhanced stability

Jindui Hong; Yabo Wang; Jisheng Pan; Ziyi Zhong; Rong Xu

doi:10.1039/c1nr10628g

Self-assembled dye-layered double hydroxide-Pt nanoparticles: A novel H ₂ evolution system with remarkably enhanced stability

Jindui Hong, Yabo Wang, Jisheng Pan, Ziyi Zhong, Rong Xu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

A novel photocatalytic hydrogen evolution system was constructed by using well-dispersed layered double hydroxide (LDH) to immobilize the photosensitizer (rose bengal, RB) and photocatalyst (Pt). The produced amount of H ₂ from such a self-assembled RB-LDH-Pt system is a few times more than that from the Free system (without LDH). Moreover, RB-LDH-Pt can be reused for at least 6 times (still having 64% of the activity in the 6 ^th run) by a simple method of centrifugation which makes this system more economical by recycling the expensive Pt. The total turnover number (TON) obtained after six runs for RB-LDH-Pt was calculated to be 304 based on Pt, which gave at least 13-fold enhancement compared with that from the Free system.

Original language	English
Pages (from-to)	4655-4661
Number of pages	7
Journal	Nanoscale
Volume	3
Issue number	11
DOIs	https://doi.org/10.1039/c1nr10628g
State	Published - Nov 2011
Externally published	Yes

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title = "Self-assembled dye-layered double hydroxide-Pt nanoparticles: A novel H 2 evolution system with remarkably enhanced stability",

abstract = "A novel photocatalytic hydrogen evolution system was constructed by using well-dispersed layered double hydroxide (LDH) to immobilize the photosensitizer (rose bengal, RB) and photocatalyst (Pt). The produced amount of H 2 from such a self-assembled RB-LDH-Pt system is a few times more than that from the Free system (without LDH). Moreover, RB-LDH-Pt can be reused for at least 6 times (still having 64% of the activity in the 6 th run) by a simple method of centrifugation which makes this system more economical by recycling the expensive Pt. The total turnover number (TON) obtained after six runs for RB-LDH-Pt was calculated to be 304 based on Pt, which gave at least 13-fold enhancement compared with that from the Free system.",

author = "Jindui Hong and Yabo Wang and Jisheng Pan and Ziyi Zhong and Rong Xu",

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T1 - Self-assembled dye-layered double hydroxide-Pt nanoparticles

T2 - A novel H 2 evolution system with remarkably enhanced stability

AU - Hong, Jindui

AU - Wang, Yabo

AU - Pan, Jisheng

AU - Zhong, Ziyi

AU - Xu, Rong

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N2 - A novel photocatalytic hydrogen evolution system was constructed by using well-dispersed layered double hydroxide (LDH) to immobilize the photosensitizer (rose bengal, RB) and photocatalyst (Pt). The produced amount of H 2 from such a self-assembled RB-LDH-Pt system is a few times more than that from the Free system (without LDH). Moreover, RB-LDH-Pt can be reused for at least 6 times (still having 64% of the activity in the 6 th run) by a simple method of centrifugation which makes this system more economical by recycling the expensive Pt. The total turnover number (TON) obtained after six runs for RB-LDH-Pt was calculated to be 304 based on Pt, which gave at least 13-fold enhancement compared with that from the Free system.

AB - A novel photocatalytic hydrogen evolution system was constructed by using well-dispersed layered double hydroxide (LDH) to immobilize the photosensitizer (rose bengal, RB) and photocatalyst (Pt). The produced amount of H 2 from such a self-assembled RB-LDH-Pt system is a few times more than that from the Free system (without LDH). Moreover, RB-LDH-Pt can be reused for at least 6 times (still having 64% of the activity in the 6 th run) by a simple method of centrifugation which makes this system more economical by recycling the expensive Pt. The total turnover number (TON) obtained after six runs for RB-LDH-Pt was calculated to be 304 based on Pt, which gave at least 13-fold enhancement compared with that from the Free system.

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Self-assembled dye-layered double hydroxide-Pt nanoparticles: A novel H ₂ evolution system with remarkably enhanced stability

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