Wastewater Treatment by CatalyticWet Peroxidation Using Nano Gold-Based Catalysts: A Review Rodrigues, Carmen Silva, Ricardo Carabineiro, Sónia Maldonado Hodar, Francisco José Madeira, Luis catalytic wet peroxidation Radiation gold-based catalysts Wastewater treatment advanced oxidation processes Nowadays, there is an increasing interest in the development of promising, e cient, and environmentally friendly wastewater treatment technologies. Among them are the advanced oxidation processes (AOPs), in particular, catalytic wet peroxidation (CWPO), assisted or not by radiation. One of the challenges for the industrial application of this process is the development of stable and e cient catalysts, without leaching of the metal to the aqueous phase during the treatment. Gold catalysts, in particular, have attracted much attention from researchers because they show these characteristics. Recently, numerous studies have been reported in the literature regarding the preparation of gold catalysts supported on various supports and testing their catalytic performance in the treatment of real wastewaters or model pollutants by CWPO. This review summarizes this research; the properties of such catalysts and their expected e ects on the overall e ciency of the CWPO process, together with a description of the e ect of operational variables (such as pH, temperature, oxidant concentration, catalyst, and gold content). In addition, an overview is given of the main technical issues of this process aiming at its industrial application, namely the possibility of using the catalyst in continuous flow reactors. Such considerations will provide useful information for a faster and more e ective analysis and optimization of the CWPO process. 2019-10-16T11:18:45Z 2019-10-16T11:18:45Z 2019-05-23 journal article Rodrigues, C. S., Silva, R. M., Carabineiro, S. A., Maldonado-Hódar, F. J., & Madeira, L. M. (2019). Wastewater Treatment by Catalytic Wet Peroxidation Using Nano Gold-Based Catalysts: A Review. Catalysts, 9(5), 478. http://hdl.handle.net/10481/57385 10.3390/catal9050478 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MDPI