Fig. 9From: Photocatalytic and electrocatalytic approaches towards atmospheric nitrogen reduction to ammonia under ambient conditions(Reproduced with permission [49] Copyright 2017, American Chemical Society)a Photocatalytic N2 fixation on the surface of Rutile TiO2 (110) surface. b The mechanism for the photocatalytic fixation of N2 to NH3 over the surface oxygen vacancies of TiO2Back to article page