doi:10.1007/s11356-021-12542-4engMoles, S.Berges, J.Ormad, M.P.Nieto-Monge, M.J.Gómez, J.Mosteo, R.Photoactivation and photoregeneration of TiO2/PAC mixture applied in suspension in water treatments: approach to a real applicationART-2021-123355The process TiO2/PAC/UV-vis has been under study and compared with the isolated treatments of adsorption and photocatalysis determining possible synergies between adsorption and photocatalysis of target antibiotics: amoxicillin, enrofloxacin, sulfadiazine, and trimethoprim. The characterization of the TiO2/PAC mixture was carried out via FESEM and FTIR. Moreover, a kinetic study has been performed. The effect of UV-vis radiation and the type of matrix was analyzed in TiO2/PAC/UV-vis process. The performance of this treatment has been monitored during three cycles, evaluating also the regeneration of TiO2/PAC mixture by UV-vis light. TiO2/PAC/UV-vis process allowed the removal of the antibiotics in the range 90–100% (an average removal of 93% of the initial concentration) after 60 min of treatment. However, only amoxicillin showed a significant synergy applying TiO2/PAC/UV-vis process. Regarding matrix effect, no influence of the matrix type (ultrapure water or treated wastewater) was observed. Since PAC tends to be deactivated gradually, the TiO2/PAC/UV-vis process performance decreases after each cycle in a 15% average. Finally, regeneration via UV-vis light started to be effective after a total of 4 h of regeneration.2021http://zaguan.unizar.es/record/10959610.1007/s11356-021-12542-4http://zaguan.unizar.es/record/109596oai:zaguan.unizar.es:109596info:eu-repo/grantAgreement/ES/DGA-FEDER/B43-20Rinfo:eu-repo/grantAgreement/EUR/INTERREG-POCTEFA/OUTBIOTICS-EFA183/16Environmental Science and Pollution Research (2021), [13 pp]All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess