Preparation method and application of bismuth tungstate-lanthanum phosphate heterojunction material
A lanthanum phosphate, heterojunction technology, applied in the field of photochemistry, can solve the problems of limited research progress, forbidden bandwidth, difficult to excitation with visible light, etc., and achieve the effect of broad application prospect and simple method.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] (1), preparation of lanthanum phosphate
[0029] 3 mmol La(NO 3 ) 3 ·6H 2 O and 3 mmol (NH 4 ) 2 HPO 4 Dissolve in 35 mL deionized water respectively and stir to form a transparent solution. (NH 4 ) 2 HPO 4 The aqueous solution was slowly added dropwise to the La(NO 3 ) 3 ·6H 2 O aqueous solution. Stir magnetically at room temperature for 1 h until a homogeneous colloid is formed and transfer to a polytetrafluoroethylene liner. Put the lining into a hydrothermal kettle and heat it at 180°C for 24 hours. After cooling down to room temperature naturally, wash the precipitate with distilled water several times, and then dry it in vacuum at 60°C for 24 hours. The product is LaPO 4 nanorod powder.
[0030] (2), Bi 2 WO 6 @LaPO 4 preparation of
[0031] 1 mmol Bi(NO 3 ) 3 ·5H 2 O and 0.5 mmol Na 2 WO 4 2H 2 O was dissolved in 20 mL of deionized water; 0.05 g of LaPO 4 Nanorod powder added Bi(NO 3 ) 3 ·5H 2 O solution and stirred for 1 h, which was ...
Embodiment 2
[0035] (1), preparation of lanthanum phosphate
[0036] 3 mmol La(NO3 ) 3 ·6H 2 O and 3 mmol (NH 4 ) 2 HPO 4 Dissolve in 35 mL deionized water respectively and stir to form a transparent solution. (NH 4 ) 2 HPO 4 The aqueous solution was slowly added dropwise to the La(NO 3 ) 3 ·6H 2 O aqueous solution, stirred magnetically at room temperature for 1 h, until a uniform colloid was formed, then transferred to a polytetrafluoroethylene liner, put the liner into a hydrothermal kettle and heated at 180°C for 24 hours, cooled naturally to room temperature, and used The precipitate was washed with distilled water several times, and then dried in vacuum at 60°C for 24 hours to obtain the product LaPO 4 nanorod powder.
[0037] (2), Bi 2 WO 6 @LaPO 4 preparation of
[0038] 1 mmol Bi(NO 3 ) 3 ·5H 2 O and 0.5 mmol Na 2 WO 4 2H 2 O was dissolved in 20 mL of deionized water; 0.1 g of LaPO 4 Nanorod powder added Bi(NO 3 ) 3 ·5H 2 O solution and stirred for 1 h, wh...
Embodiment 3
[0042] (1), preparation of lanthanum phosphate
[0043] 3 mmol La(NO 3 ) 3 ·6H 2 O and 3 mmol (NH 4 ) 2 HPO 4 Dissolve in 35 mL deionized water respectively and stir to form a transparent solution. (NH 4 ) 2 HPO 4 The aqueous solution was slowly added dropwise to the La(NO 3 ) 3 ·6H 2 O aqueous solution, stirred magnetically at room temperature for 1 h until a homogeneous colloid was formed and transferred to a Teflon liner. Put the lining into a hydrothermal kettle and heat it at 180°C for 24 hours. After cooling down to room temperature naturally, wash the precipitate with distilled water several times, and then vacuum-dry it at 60°C for 24 hours. The product is LaPO 4 nanorod powder.
[0044] (2), Bi 2 WO 6 @LaPO 4 preparation of
[0045] 1 mmol Bi(NO 3 ) 3 ·5H 2 O and 0.5 mmol Na 2 WO 4 2H 2 O was dissolved in 20 mL of deionized water; 0.2 g of LaPO 4 Nanorod powder added Bi(NO 3 ) 3 ·5H 2 O solution and stirred for 1 h, which was labeled as A so...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More