Structure-directing ability of the kraft-lignin/cellulose carbon xerogel for the development of C-Nb2O5 sunlight-active photocatalysts - Moraes, Nícolas Perciani de; Siervo, Abner de; Campos, Tiago Moreira Bastos; Thim, Gilmar Patrocínio; Rodrigues, Liana Alvares (Journal of Photochemistry and Photobiology, A: Chemistry, 2023)