Efficient photodegradation of 4-chlorophenol under solar radiation using a new ZnO/ZnS/carbon xerogel composite as a photocatalyst - Moraes, Nícolas Perciani de; Marins, Lucca Gabriel Penida; Yamanaka, Marcelo Yuji de Moura; Bacani, Rebeca; Rocha, Robson da Silva; Rodrigues, Liana Alvares (Journal of photochemistry and photobiology a-chemistry, 2021)