✦ LIBER ✦

ChemInform Abstract: Synthesis of La1-xFexVO4 Solid Solutions and Their Photocatalytic Activity.

✍ Scribed by Jingang Zhao; Junfeng Ma; Changhong Dai; Ye Liu; Zuwei Song; Yong Sun; Jingrui Fang; Chang Gao; Zhensen Liu; Xia Sun

Publisher: John Wiley and Sons
Year: 2010
Weight: 17 KB
Volume: 41
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201047007

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✦ Synopsis

Synthesis of La 1-x Fe x VO 4 Solid Solutions and Their Photocatalytic Activity. -Nanocrystalline title solid solutions (x = 0, 0.05, 0.10, 0.20) are prepared by precipitation from aqueous solutions of NaVO3, La(NO3)3, and Fe(NO3)3 with NH3 followed by calcination of a mixture of the precipitate and LiNO3 (alumina crucible, 450 °C, 6 h). The samples are characterized by powder XRD and TEM. With increasing x a gradual phase transformation from monoclinic to tetragonal occurs which is accompanied by morphology changes of the particles from nearly spherical to nanorods and nanosheets. The metastable tetragonal phase exhibits higher photocatalytic activity for degradation of aqueous Rhodamine B solutions under UV irradiation than the monoclinic phase.

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