Titanium dioxide (TiO2) is one of the most widely studied materials in many fields such as photocatalysis in water and air treatment, solar fuel generation, sensor and photovoltaic devices [1, 2]. Of the three structurally stable phases of TiO2, rutile is the most stable one, attracting thus much interest in surface science. | Chemisorption of enrofloxacin on rutile TiO2 (110) surface: A theoretical investigation