Marta Litter is PhD in Chemistry (University of Buenos Aires, Argentina) with postdoctoral stay at the University of Arizona, USA. She is Senior Researcher of the National Council of Scientific and Technical Research (CONICET) and Professor and Consultant at the University of General San Martín, Argentina. Her research focuses on the treatment of pollutants in water and air by AOPs, especially heterogeneous photocatalysis and use of iron-based nanomaterials. She authored more than 250 scientific publications. She was President of the Organizing Committee of the 5th International Congress of Arsenic in the Environment, Buenos Aires, Argentina (2014). She was named a pioneer of photocatalysis in Argentina (2016). She is a Member of the World Academy of Sciences (TWAS, 2019), the Academy of Sciences of Latin America (ACAL, 2020) and the Academy of Environmental Sciences of Argentina (2022). She received the following awards: Mercosur (UNESCO, 2006 and 2011, Innovar (MINCYT, 2009), Charreau for Regional Scientific and Technological Cooperation (2021), Latin American Women in Chemistry (ACS, 2021), Houssay Trajectory in Environmental Sciences and Technologies (MINCyT, 2022) and Konex-Diploma of Merit Award (2023).