Prof. Dr. Detlef W. Bahnemann is Director of the Megagrant Laboratory "Photoactive Nanocomposite Materials" at St. Petersburg State University (Russia). He is author of more than 500 publications in refereed journals and in books and more than 100 other publications with a current Hirsch-Factor (h-Index) of 85 (papers have been cited more than 47,000 times altogether) according to Scopus and Web of Science. According to Google Scholar Citations Prof. Bahnemann is a Highly Cited Author with his current Hirsch-Factor (h-Index) being 100, whose papers have been cited more than 63,000 times altogether. He has presented more than 400 lectures at scientific meetings, in various universities, research institutes and at industrial research and development centres. Prof. Bahnemann is the editor of five scientific books.