| abstract |
The invention discloses a rare-earth-doped bismuth vanadate material with double-functional properties of up-conversion single red light emission and photocatalysis, as well as a preparation method and application thereof. Rare earth-doped bismuth vanadate material BiVO 4 : Re 3+ takes monoclinic phase BiVO 4 as a matrix material, and dopes rare earth ions into it, and the rare earth ion Re 3+ is a mixture of Yb 3+ and Tm 3+ . Experimental studies have found that the bifunctional material of the present invention can emit strong red light (620-720nm) under the excitation of a 980nm laser, and can degrade organic matter under infrared light (degradation of 90% methylene blue in 2 hours) and decrease in visible light. The speed of decomposing organic matter is faster than that of pure BiVO 4 , and it shows great potential application value in many fields such as biomarkers, photodynamic therapy, and photocatalytic degradation of organic pollutants; the synthesis method of the present invention has simple conditions, no pollution, and stability High performance and good prospects for commercial application. |