| abstract |
The invention relates to the technical field of potassium titanate modification and photocatalytic nanomaterial preparation, and a preparation method of carbon-doped potassium hexatitanate nanowires for photocatalysis, comprising the following steps: (1) mixing nanoscale titanium dioxide powder with KF mixed, stirred in a constant temperature water bath at 45°C for 30min, taken out and dried at 100°C for 6h, and ground into fine powder with an agate mortar; (2) Take a certain amount of the treated fine powder and sieve it into a corundum crucible with a mesh , heated in a tube furnace, heated at a certain heating rate, the heating process was passed 200sccmAr, and when the reaction temperature was raised, a carbon-containing atmosphere was passed into the reaction for 90min; (3) after cooling with the furnace, take it out and smash it into powder, use deionized The carbon-doped K 2 Ti 6 O 13 nanowire powder was obtained by centrifugal washing with water, followed by drying at 80° C. for 6 hours. The invention adopts a one-step solid-phase sintering method to prepare the carbon-doped K 2 Ti 6 O 13 nanowire powder, which can effectively improve the quality of the nanowires, obtain a high aspect ratio, and has a relatively high performance when applied to photocatalysis. Good all-band photocatalytic degradation of organic dye methylene blue (MB). |