Black titania by sonochemistry: A critical evaluation of existing methods

Special issue on “Ultrasound meets photocatalysis: recent trends in photocatalyst synthesis, hybrid processes, and piezo-enhanced strategies”

“…Despite its benefits, the limitations of ultrasound-based syntheses are critically analyzed. Verbruggen and colleagues [4] , for instance, challenge the purported benefits of sonochemical treatment in generating defects in TiO 2 powders, suggesting that increased optical absorption may instead result from probe erosion.…”