Vanadato de bismuto sintetizado por combustão em solução na presença de diferentes combustíveis: síntese, caracterização e estudo da atividade fotocatalítica

Química Nova

Jéssica Aparecida Serafim²  Renata Afonso²  Adriana Campano Lucilha²  Lucas Agostinho De Oliveira²  Paulo Rogério Catarini Da Silva¹  Marcelo Rodrigues Da Silva¹  Elen Romão Sartori²  Luiz Henrique Dall'antonia² 

[1],Universidade Estadual de Londrina Departamento de Química Londrina PR ,Brasil

关键词: BiVO4;    photocatalysis;    semiconductor;   

DOI  :  10.5935/0100-4042.20140191

来源: SciELO

【 摘 要 】

In this manuscript, a BiVO4 semiconductor was synthesized by solution combustion synthesis using different fuels (Alanine, Glycine and Urea). Also, the Tween® 80 surfactant was added during synthesis. BiVO4 was characterized by XRD, SEM and diffuse reflectance spectroscopy. Photocatalytic activity was evaluated by the discoloration of methylene blue at 664 nm under UV-visible light irradiation. According to XRD, the monoclinic phase of BiVO4 was obtained for the samples. The smallest particle size and highest k obs value were observed for the BiVO4/alanine sample, which promoted greater demethylation of methylene blue.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License