A dual-energy light-converting glass for promoting plant photosynthesis and preparation method thereof
A photosynthesis and glass technology, applied in glass production and other directions, can solve the problems of environmental pollution, high efficiency absorption of chlorophyll α blue light, application limitations, etc., and achieves simple preparation method, non-radiative energy transfer inhibition, reduction and pesticide use. Effect
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Embodiment 1
[0036] (1) Preparation of precursor glass: the molar composition is: SiO 2 :44.875%, Al 2 o 3 :22%, Na 2 O:16%, NaF:9%, YF 3 :8%, Bi 2 o 3 :0.05%, Eu 2 o 3 :0.075%. Take 100g of raw materials and grind them in an agate mortar for 30 minutes to make them fully mixed. Pour the uniformly mixed material into a 200ml corundum crucible, and then put the corundum crucible into a high-temperature furnace. Firstly, the temperature was raised to 1000°C at a rate of 8°C / min, and then to 1550°C at a rate of 5°C / min, and then kept for 1 hour. Then the molten glass is quickly poured into a preheated mold at 250°C, placed in a muffle furnace heated to 500°C for 2.5 hours, and then cooled to below 50°C at a rate of 10°C / h to obtain a precursor Glass.
[0037] (2) Preparation of transparent glass-ceramics: Put the precursor glass in a muffle furnace, raise it from room temperature to 670°C at a rate of 5°C / min and keep it warm for 2 hours to obtain a transparent glass-ceramic, and t...
Embodiment 2
[0040] (1) Preparation of precursor glass: the molar composition is: SiO 2 :33.8%, Al 2 o 3 :24%, Na 2 O:18%, NaF:11%, YF 3 :12%, Yb 2 o 3 :0.5%, Tm2 o 3 : 0.2%, MnO: 0.5%. Take 100g of raw materials and grind them in an agate mortar for 20 minutes to make them fully mixed. Pour the uniformly mixed material into a 200ml corundum crucible, and then put the corundum crucible into a high-temperature furnace. First raise the temperature to 1000°C at a rate of 5°C / min, then raise the temperature to 1400°C at a rate of 3°C / min, and then keep warm for 2 hours. Then the molten glass is quickly poured into a preheated mold at 200°C, placed in a muffle furnace that has been heated to 450°C for 3 hours, and then cooled to below 50°C at a rate of 5°C / h to obtain a precursor glass .
[0041] (2) Preparation of transparent glass-ceramics: Put the precursor glass in a muffle furnace, raise it from room temperature to 650°C at a rate of 3°C / min and keep it warm for 5 hours to obtain...
Embodiment 3
[0044] (1) Preparation of precursor glass: the molar composition is: SiO 2 :50%, Al 2 o 3 :18%, Na 2 O:14%, NaF:7%, YF 3 :10%, Tm 2 o 3 :0.5%, Cr 2 o 3 :0.5%. Take 100g of raw materials and grind them in an agate mortar for 40 minutes to make them fully mixed. Pour the uniformly mixed material into a 200ml corundum crucible, and then put the corundum crucible into a high-temperature furnace. First raise the temperature to 1000°C at a rate of 10°C / min, then raise the temperature to 1600°C at a rate of 4°C / min, and then keep warm for 0.5h. Then the molten glass is quickly poured into a preheated mold at 300°C, placed in a muffle furnace heated to 550°C for 2 hours, and then cooled to below 50°C at a rate of 15°C / h to obtain the precursor glass .
[0045] (2) Preparation of transparent glass-ceramics: Put the precursor glass in a muffle furnace, raise it from room temperature to 700°C at a rate of 4°C / min and keep it warm for 1h to obtain a transparent glass-ceramic, a...
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