LOPEZ VASQUEZ, A.F. and CABEZAS SILVA, J.E. 2018. Comparative study of the use of different agents of sacrifice for the production of hydrogen by heterogeneous photocatalysis using the mineral black sand as a semiconductor. Avances: Investigación en Ingeniería. 15, 1 (Dec. 2018), 77–85. DOI:https://doi.org/10.18041/1794-4953/avances.1.1372.