Tannin-based carbon xerogel as a promising co-catalyst for photodegradation processes based on solar light: a case study using the tin (IV) oxide/carbon xerogel composite - Moraes, Nícolas Perciani de; Goes, Clarice Moreira; Rocha, Robson da Silva; Gouvêa, Maira Elizabeth Vicente; Siervo, Abner de; Silva, Maria Lucia Caetano Pinto da; Rodrigues, Liana Alvares (Chemical engineering communications, 2021)