ENHANCE THE PHOTOCATALYTIC PERFORMANCE OF TIO2 NANO-SEMICONDUCTOR BY SIMULTANEOUSLY DOPING OF TRANSITION AND LANTHANIDE ELEMENTS FOR THE CC HOMOCOUPLING REACTION UNDER SUNLIGHT IRRADIATION Article Absalan Y., Razavi M.R., Gholizadeh M., Ahmadpour A., Poursabagh S., Kovalchukova O. Nano-Structures and Nano-Objects. Elsevier B.V.. Vol. 30. 2022.