Using of electrical explosion of two twisted wires to obtain TiO2(rutile)/TiO2(anatase)-Ag nanoparticles with high visible-light photochemical activity

•Heterophase TiO2(rutile)/TiO2(anatase)-Ag nanoparticles were synthesized for the first time by eco-friendly electrical explosion of wires.•TiO2(rutile)/TiO2(anatase)-Ag nanoparticles display an increased efficiency of the model dye degradation compared to TiO2 nanoparticles under visible light irradiation.•TiO2(rutile)/TiO2(anatase)-Ag nanoparticles showed superior photocatalytic ceftazidime and dexamethasone degradation performance.•Nanoparticles had enhanced antibacterial activity against antibiotic-resistant bacteria MRSA and effluent wastewater sample. In present work heterophase TiO2(rutile)/TiO2(anatase)-Ag nanoparticles with silver content 4 wt. % were synthesized for the first time by physical method - electrical explosion of two twisted wires in one stage in an oxygen-containing atmosphere. The experimental data obtained show that TiO2-Ag nanoparticles display an increased efficiency of the model dye degradation compared to TiO2 under visible light irradiation. The degradation efficiency of difficult-to-degrade ceftazidime (antibiotic) and dexamethasone reached 66±0,2 % and 69±1,1 %, with the degradation apparent rate constant being 0.011 min-1 and 0.010 min-1, respectively, for 120 min visible light irradiation. Nanoparticles had enhanced antibacterial activity against antibiotic-resistant bacteria MRSA and effluent wastewater sample which is based on the nanoparticle photocatalytic activity in water decomposition and reactive oxygen species generation. The conducted studies allow to expand the use of non-toxic TiO2 nanoparticles in light induced biomedical applications. [Display omitted]