1 Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal. vilar@fe.up.pt.
2 Department of Environmental and Sanitary Engineering, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, 31270-901, Brazil.
3 Departament de Química Física, Facultat de Química, Laboratori d'Electroquímica dels Materials i del Medi Ambient, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain.
4 Department of Chemical Engineering, Environmental Nanocatalysis and Photoreaction Engineering, Loughborough University, Loughborough, LE11 3TU, UK.
5 Plataforma Solar de Almería, Carretera Senés Km 4, 04200, Tabernas (Almería), Spain.
6 Department of Biomedical, Chemical and Environmental Engineering, 705 Engineering Research Center, Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH, 45221-0012, USA.