Controllable Phase Transformation and Enhanced Photocatalytic Performance of Nano-TiO₂ by Using Oxalic Acid.

ABSTRACT: Degradation of organic pollutants, especially organic dyes and antibiotics, by semiconductor photocatalysts is an efficient strategy for wastewater treatment. TiO₂ nanomaterials are considered to be promising photocatalysts due to their high chemical stability, high efficiency and availability. Anatase TiO₂ generally has superior photocatalytic activity to the rutile phase. However, the anatase phase can be irreversibly transformed to rutile phase when calcined at an elevated temperature. Methods to improve the stability of anatase are especially important for the TiO₂ gas sensors working at high temperatures. The addition of strong acids can effectively suppress this transformation process. However, these strong acids are relatively expensive, corrosive an

SUBMITTER: Chen J 

PROVIDER: S-EPMC9458251 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature