Varma, Ranjana Roles of Vanadium and Nitrogen in Photocatalytic Activity of VN-Codoped TiO [electronic resource] - Photochemistry and photobiology 09 2018 - 955-964 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1751-1097 Standard No.: 10.1111/php.12942 doi