Flower type Ho-Bi2WO6 nano powder and preparation method and application thereof
A ho-bi2wo6, nano-powder technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems affecting the properties of synthetic powder, particle size, uneven heat distribution, slow heating rate, etc., to achieve The effect of uniform and stable morphology, short preparation cycle and fast reaction speed
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Embodiment 1
[0032] Flower type Ho-Bi 2 WO 6 The preparation method of nanopowder, comprises the following steps:
[0033] Step 1: Weigh Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 O was put into a beaker, and a certain amount of Ho(NO 3 ) 3 ·6H 2 O is added to the beaker, where the amount of Ho added is x=2%, x=n Ho / (n Bi +n Ho )×100%, n Bi and n Ho are the molar amounts of Bi and Ho, respectively;
[0034] Step 2: Measure deionized water into the beaker, stir at room temperature for 30 minutes until the raw materials are fully dissolved to form a white suspension, and prepare a mixed solution, in which Bi(NO 3 ) 3 ·5H 2 The concentration of O is 0.6mol / L, Na 2 WO 4 2H 2 The concentration of O is 0.3mol / L, and the pH value is adjusted to 1.6 to obtain a precursor solution;
[0035] Step 3: Move the precursor liquid into the microwave hydrothermal reactor lined with polytetrafluoroethylene, control the filling degree of the microwave hydrothermal reactor to 40%, and then p...
Embodiment 2
[0039] Flower type Ho-Bi 2 WO 6 The preparation method of nanopowder, comprises the following steps:
[0040] Step 1: Weigh Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 O was put into a beaker, and a certain amount of Ho(NO 3 ) 3 ·6H 2 O is added to the beaker, where the amount of Ho added is x=10%, x=n Ho / (n Bi +n Ho )×100%, n Bi and n Ho are the molar amounts of Bi and Ho, respectively;
[0041] Step 2: Measure deionized water into the beaker, stir at room temperature for 60 minutes until the raw materials are fully dissolved to form a white suspension, and prepare a mixed solution, in which Bi(NO 3 ) 3 ·5H 2 The concentration of O is 0.1mol / L, Na 2 WO 4 2H 2 The concentration of O is 0.05mol / L, and the pH value is adjusted to 1.8 to obtain a precursor solution;
[0042] Step 3: Move the precursor liquid into the microwave hydrothermal reactor lined with polytetrafluoroethylene, control the filling degree of the microwave hydrothermal reactor to 60%, and then...
Embodiment 3
[0049] Flower type Ho-Bi 2 WO 6 The preparation method of nanopowder, comprises the following steps:
[0050] Step 1: Weigh Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 O was put into a beaker, and a certain amount of Ho(NO 3 ) 3 ·6H 2 O is added to the beaker, where the amount of Ho added is x=15%, x=n Ho / (n Bi +n Ho )×100%, n Bi and n Ho are the molar amounts of Bi and Ho, respectively;
[0051] Step 2: Measure deionized water into the beaker, stir at room temperature for 40 minutes until the raw materials are fully dissolved to form a white suspension, and prepare a mixed solution, in which Bi(NO 3 ) 3 ·5H 2 The concentration of O is 0.2mol / L, Na 2 WO 4 2H 2 The concentration of O is 0.1mol / L, and the pH value is adjusted to 2.0 to obtain a precursor solution;
[0052] Step 3: Move the precursor liquid into the microwave hydrothermal reactor lined with polytetrafluoroethylene, control the filling degree of the microwave hydrothermal reactor to 70%, and then ...
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