Low temperature-calcined TiO₂ for visible light assisted decontamination of 4-nitrophenol and hexavalent chromium from wastewater.

ABSTRACT: In the present study, alkaline hydrothermally treated titania nanoparticles (TiO₂-HT) are prepared and followed by calcination at different low temperatures to improve TiO₂ activity under visible light. The prepared photocatalysts (PCs) are characterized by different tools. TiO₂-HT is scrutinized for decontamination of para-nitrophenol (PNP) and hexavalent chromium ions (Cr⁶⁺ ions) under simulated sunlight. TiO₂-HT-300 and TiO₂-HT-400 PCs have nanosized particle with large surface area of 148 and 116.26 m²/g, respectively. Additionally, XRD and FTIR proved formation of nanocrystalline anatase TiO₂. The different calcined TiO₂-HT materials show lower adsorption capacity for PNP and Cr^6+</

SUBMITTER: Ali MEM 

PROVIDER: S-EPMC6920423 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature