The fabrication of TiO2-supported clinoptilolite via F− contained hydrothermal etching and a resultant highly energetic {001} facet for the enhancement of its photocatalytic activity. Issue 29 (18th May 2021)

• Record Type: Journal Article
• Authors: Gul, Anadil; Ullah, Raza; Sun, Jihong; Munir, Tallat; Bai, Shiyang
• Is Part Of: RSC advances. Volume 11:Issue 29(2021)
• Page Start: 17849
• Page End: 17859
• Publication Date: 2021-05-18
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra02269e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : TiO2 -supported clinoptilolite (TiO2 /CP) was synthesized in the presence of F − ions. Abstract : TiO2 -supported clinoptilolite (TiO2 /CP) was synthesized in the presence of F − ions. Various characterizations demonstrated that the particle size of loaded TiO2 increased linearly with an increase in the temperature and concentration of F − ions. In particular, the additive F − ions were favored to produce the mutually independent co-exposed {001} and {101} facets of loaded TiO2, while TiO2 /CPs synthesized in the absence of F − ions were dominated by the thermodynamically stable {101} facet. As photocatalysts for the removal of crystal violet or methyl orange dyes under UV-irradiation in aqueous solutions, TiO2 /CPs (ACP6) synthesized in the presence of F − ions significantly improved the degradation efficiency, as compared to ACP3 obtained in the absence of F − ions. These results elucidated that the highly energetic {001} exposed facet, large particle size and fine dispersion of loaded TiO2 in TiO2 /CP accounts for its best photocatalytic performance. The effected mechanism of operational parameters on the degradation performances is proposed.