Bismuth germanate nanometer powder preparation method
A nano-powder, bismuth germanate technology, applied in chemical instruments and methods, bismuth compounds, inorganic chemistry, etc., can solve the problems of difficulty in obtaining nano-powder, long time required for ball milling, low production efficiency, etc. The effect of uneven sintering mixing, widening the light response range, and low equipment requirements
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Embodiment 1
[0030] 0.12mol bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O) dissolved in 180ml glacial acetic acid (CH 3 COOH), then dropwise added 0.01mol tetraethoxygermanium ((C 2 h 5 O) 4 Ge), while adding 60ml ethylene glycol dimethyl ether (CH 3 OCH 2 CH 2 OH) as a co-solvent to adjust the viscosity of the solution, fully stirred to form a uniform sol. The aforementioned sol was evaporated and dried at 150° C. to obtain a precursor powder. The resulting precursor powder was sintered at 650 °C under normal pressure for 0.8 hours to obtain Bi 12 GeO 20 Nano powder.
Embodiment 2
[0032] 0.12mol bismuth nitrate (Bi(NO 3 ) 3 ) dissolved in 30ml of anhydrous acetone (CH 3 COCH 3 ), and then dropwise added 0.01mol tetramethoxygermanium ((CH 2 O) 4 Ge), while adding 15ml diethylene glycol dimethyl ether (CH 3 OCH 2 CH 2 ) 2 O was used as a co-solvent to adjust the viscosity of the solution, and it was fully stirred to form a uniform sol. The aforementioned sol was evaporated and dried at 350° C. to obtain a precursor powder. The resulting precursor powder was sintered at 750 °C under normal pressure for 0.5 hours to obtain Bi 12 GeO 20 Nano powder.
Embodiment 3
[0034] 0.12mol bismuth acetate (Bi(CH 3 COO) 3 ) dissolved in 100ml absolute ethanol (CH 3 CH 2 OH), and then add 0.01mol germanium nitrate (Ge(NO 3 ) 4 ), and stirred thoroughly to form a homogeneous sol. The aforementioned sol was evaporated and dried at 100° C. to obtain a precursor powder. The resulting precursor powder was sintered at 450 °C under normal pressure for 4 hours to obtain Bi 12 GeO 20 Nano powder.
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