Influence of neodymium ions on photocatalytic activity of 'TI''O IND. 2' synthesized by sol-gel and precipitation methods - Hewer, Thiago Lewis Reis; Souza, Eduardo Caetano Camilo de; Martins, T. S; Muccillo, Eliana Navarro dos Santos; Freire, Renato Sanches (Journal of Molecular Catalysis A: Chemical, 2011)