Method for producing gadolinium vanadate thulium blue luminescent material modified by glucose
A blue luminescent material, gadolinium vanadate technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of irregular shape, reduced luminous intensity, affecting luminous intensity, etc., and achieve simple preparation method and improved luminous intensity , the effect of low synthesis temperature
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Embodiment 1
[0025] The chemical composition prepared in this embodiment is Gd 0.98 VO 4 :Tm 0.02 The glucose-modified gadolinium-thulium vanadate blue luminescent material, the process steps are as follows:
[0026] (1) Preparation of precursor
[0027] Take NH 4 VO 3 (ammonia metavanadate), Gd(NO 3 ) 3 .6H 2 O(gadolinium nitrate), Tm(NO 3 ) 3 .5H 2 O (thulium nitrate) and citric acid are used as basic raw materials, glucose is used as a modifier, and NH is measured according to the molar ratio of vanadium, gadolinium, and thulium V:Gd:Tm=1:0.98:0.02 4 VO 3 , Gd(NO 3 ) 3 .6H 2 O and Tm(NO 3 ) 3 .5H 2 O, by the mol ratio of Gd+Tm and citric acid is 1: 6 metering citric acid, operation steps are:
[0028] ①NH will be measured according to the above ratio 4 VO 3 Put in a container and add deionized water, the amount of deionized water added is enough to dissolve NH 4 VO 3 As a limit, stir at normal pressure and 50°C until the NH 4 VO 3 Until it is completely dissolved...
Embodiment 2
[0050] The chemical composition prepared in this embodiment is Gd 0.99 VO 4 :Tm 0.01 The glucose-modified gadolinium-thulium vanadate blue luminescent material, the process steps are as follows:
[0051] (1) Preparation of precursor
[0052] Take NH 4 VO 3 (ammonia metavanadate), Gd(NO 3 ) 3 .6H 2 O(gadolinium nitrate), Tm(NO 3 ) 3 .5H 2 O (thulium nitrate) and citric acid are used as basic raw materials, glucose is used as a modifier, and NH is measured according to the molar ratio of vanadium, gadolinium, and thulium V:Gd:Tm=1:0.99:0.01 4 VO 3 , Gd(NO 3 ) 3 .6H 2 O and Tm(NO 3 ) 3 .5H 2 O, by the mol ratio of Gd+Tm and citric acid is 1: 4 metering citric acid, operation steps are:
[0053] ①NH will be measured according to the above ratio 4 VO 3 Put in a container and add deionized water, the amount of deionized water added is enough to dissolve NH 4 VO 3 As a limit, stir at normal pressure and 28°C (room temperature) until the NH 4 VO 3 Until it is c...
Embodiment 3
[0061] The chemical composition prepared in this embodiment is Gd 0.97 VO 4 :Tm 0.03 The glucose-modified gadolinium-thulium vanadate blue luminescent material, the process steps are as follows:
[0062] (1) Preparation of precursor
[0063] NH 4 VO 3 (ammonia metavanadate), Gd(NO 3 ) 3 .6H 2 O(gadolinium nitrate), Tm(NO 3 ) 3 .5H 2 O (thulium nitrate) and citric acid are used as basic raw materials, glucose is used as a modifier, and NH is measured according to the molar ratio of vanadium, gadolinium, and thulium V:Gd:Tm=1:0.97:0.03 4 VO 3 , Gd(NO 3 ) 3 .6H 2 O and Tm(NO 3 ) 3 .5H 2 O, by the mol ratio of Gd+Tm and citric acid is 1: 7 metering citric acid, operation steps are:
[0064] ①NH will be measured according to the above ratio 4 VO 3 Put in a container and add deionized water, the amount of deionized water added is enough to dissolve NH 4 VO 3 As a limit, stir at normal pressure and 40°C until the NH 4 VO 3 Until it is completely dissolved, the...
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