NDLI: Solvothermal-assisted synthesis of self-assembling TiO<sub>2</sub> nanorods on large graphitic carbon nitride sheets with their anti-recombination in the photocatalytic removal of Cr(vi) and rhodamine B under visible light irradiation

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Nanoscale Vol - 9 Issue - 8

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Nanoscale Vol - 9 Issue - 2

Solvothermal-assisted synthesis of self-assembling TiO₂ nanorods on large graphitic carbon nitride sheets with their anti-recombination in the photocatalytic removal of Cr(vi) and rhodamine B under visible light irradiation

Content Provider	Royal Society of Chemistry (RSC)
Author	Wu, Wenhui Lu, Dingze Fang, Pengfei Li, Chunhe Zhao, Xiaona Li, Yuanzhi Jiang, Lulu Wang, Dahai Yang, Minchen Ding, Junqian
Copyright Year	2017
Abstract	TiO2-based nanorods (TNRs) were self-assembled on large graphitic carbon nitride (g-C3N4) sheets via the solvothermal-assisted route. The results demonstrated that the effective anchoring of TNRs (a side length of ca. 200–300 nm) was highly dispersed on the surface of whole g-C3N4 sheets. The shift in the Ti 2p XPS core level spectrum indicated an increase in the net positive charge of the Ti ions, ensuring the formation of an interface between TNRs and g-C3N4. The charge transferred from g-C3N4 sheets to TNRs effectively prevented the recombination of excited charges, which is consistent with the significant quenching of PL. The extent of visible-light-sensitive photocatalytic (PC) activity was evaluated by the removal of potassium dichromate (Cr(VI)) or the degradation of rhodamine B (RhB). The photocatalytic removal of Cr(VI) using RhB was effectively improved. The synergistic effect between the removal of Cr(VI) and degradation of RhB was revealed by multiple utilization of TNRs/g-C3N4 for PC activity. The effective suppression of the recombination of photo-induced charges and the absorption of RhB was responsible for the enhancement in the PC activity. An alternate mechanism for enhanced visible-light photocatalytic activity was also considered.
Starting Page	3231
Ending Page	3245
Page Count	15
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	9
Issue Number	9
Journal	Nanoscale
DOI	10.1039/c6nr09137g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Rhodamine Carrier generation and recombination Nitride Potassium dichromate Graphitic carbon nitride
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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Solvothermal-assisted synthesis of self-assembling TiO₂ nanorods on large graphitic carbon nitride sheets with their anti-recombination in the photocatalytic removal of Cr(vi) and rhodamine B under visible light irradiation

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