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Spongy gamma-Bi2MoO6 porous super-nanostructured material and preparation method thereof

A -bi2moo6, nanostructure technology, applied in the field of sponge-like γ-Bi2MoO6 porous super nanostructure materials and its preparation, can solve the problems of sponge-like porous superstructures that have not been reported, and achieve novel structure, low cost and simple equipment Effect

Inactive Publication Date: 2015-10-28
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] As far as the literature survey is concerned, the currently prepared γ-Bi 2 MoO 6 The morphology of γ-Bi is mainly nanoparticles, nanosheets, microtubes, microflowers, microspheres and hollow spheres, but the γ-Bi composed of nanoribbons 2 MoO 6 Sponge-like porous superstructures have not been reported

Method used

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  • Spongy gamma-Bi2MoO6 porous super-nanostructured material and preparation method thereof
  • Spongy gamma-Bi2MoO6 porous super-nanostructured material and preparation method thereof
  • Spongy gamma-Bi2MoO6 porous super-nanostructured material and preparation method thereof

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Embodiment 1

[0030] A spongy γ-Bi of the present invention 2 MoO 6 The porous super nanostructured material is prepared by a one-step hydrothermal synthesis method. The specific process flow is as follows:

[0031] (1) Weigh 3mmoL bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O), add 1mL HNO 3 And 9mL H 2 O, dissolved into solution A;

[0032] (2) Weigh 1mmoL molybdenum trioxide (MoO 3 ), dissolved in 20mL alkaline solution containing 2.5mmol NaOH to obtain solution B;

[0033] (3) Add solution B to solution A, then add 0.9 mmol of sodium dodecyl sulfonate (SDS) to the reaction solution, and continue to stir for 60 minutes;

[0034] (4) Transfer the resulting reaction mixture to a 40 ml stainless steel reactor with a polytetrafluoroethylene lining, seal it and place it in an oven, set the temperature to 180°C, and react for 12 hours;

[0035] (5) After the reaction, cool to room temperature naturally, filter the precipitate, wash with absolute ethanol and distilled water for 3 to 5 times, and plac...

Embodiment 2

[0042] A spongy γ-Bi of the present invention 2 MoO 6 The porous super nanostructured material is prepared by a one-step hydrothermal synthesis method. The specific process flow is as follows:

[0043] (1) Weigh 3mmoL bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O), add 1mL HNO 3 And 9mL H 2 O, dissolved into solution A;

[0044] (2) Weigh 1mmoL molybdenum trioxide (MoO 3 ), dissolved in 20mL alkaline solution containing 2.5mmol NaOH to obtain solution B;

[0045] (3) Add solution B to solution A, then add 0.8 mmol of sodium dodecyl sulfonate (SDS) to the reaction solution, and continue to stir for 50 minutes;

[0046] (4) Transfer the resulting reaction mixture to a 40 ml stainless steel reactor with a polytetrafluoroethylene lining, and place it in an oven after sealing, set the temperature to 180°C, and react for 14 hours;

[0047] (5) After the reaction, cool to room temperature naturally, filter the precipitate, wash with absolute ethanol and distilled water for 3 to 5 times, an...

Embodiment 3

[0050] A spongy γ-Bi of the present invention 2 MoO 6 The porous super nanostructured material is prepared by a one-step hydrothermal synthesis method. The specific process flow is as follows:

[0051] (1) Weigh 3mmoL bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O), add 1mL HNO 3 And 9mL H 2 O, dissolved into solution A;

[0052] (2) Weigh 1mmoL molybdenum trioxide (MoO 3 ), dissolved in 20mL alkaline solution containing 2.5mmol NaOH to obtain solution B;

[0053] (3) Add solution B to solution A, then add 0.85 mmol of sodium dodecyl sulfonate (SDS) to the reaction solution, and continue to stir for 50 minutes;

[0054] (4) Transfer the obtained reaction mixture to a 40 ml stainless steel reactor with a polytetrafluoroethylene lining, and place it in an oven after sealing, set the temperature to 190°C, and react for 12 hours;

[0055] (5) After the reaction, cool to room temperature naturally, filter the precipitate, wash with absolute ethanol and distilled water for 3 to 5 times, an...

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Abstract

The invention discloses a preparation method of a spongy gamma-Bi2MoO6 porous super-nanostructured material. According to the invention, 3mmoL of Bi(NO3)3.5H2O is weighed and dissolved in 1mL of HNO3 and 9mL of H2O, such that a solution A is obtained; 1mmoL of MoO3 is weighed and dissolved in 20mL of a solution containing 2.5mmol of NaOH, such that a solution B is obtained; the solution B is added into the solution A; a certain amount of sodium dodecyl sulfonate is added to the reaction liquid; the reaction mixed liquid is transferred into a 40mL stainless steel reaction kettle with a polytetrafluoroethylene liner; the reaction kettle is sealed and placed in an oven; a certain temperature is set, and a reaction is carried out for 10-15h; when the reaction is finished, suction filtration and drying are carried out, such that the spongy gamma-Bi2MoO6 porous super-nanostructured material provided by the invention is obtained. The gamma-Bi2MoO6 porous super-nanostructured material has high yield and an innovative structure. The size is 10-50mum. Nano-flakes are formed by interspersed nano-ribbons, and are further assembled to form the spongy porous superstructure. The process provided by the invention is simple, green, environment-friendly and energy-saving, and has the advantages of simple operation and good repeatability.

Description

Technical field [0001] The invention relates to the technical field of nano material preparation, specifically, to a sponge-like γ-Bi 2 MoO 6 Porous super nano structure material and preparation method thereof. Background technique [0002] Bismuth molybdate (Bi 2 MoO 6 ) Has many physical properties such as ion conductivity, dielectric properties, gas sensor and catalytic activity, and its chemical formula is Bi 2 O 3 ·NMoO 3 , When n=3,2 or 1, corresponding to α-Bi 2 Mo 3 O 12 , Β-Bi 2 Mo 3 O 12 And γ-Bi 2 MoO 6 . γ-Bi 2 MoO 6 As a typical Aurillius structure compound, it has been found to have a unique layered perovskite structure, which is composed of twisted MoO 6 The octahedron is sandwiched between (Bi 2 O 2 ) 2+ Layer, its valence band is formed by O 2p And Bi 6s Orbital hybridization, and its conduction band is made of Mo 4d Orbital composition. Bi 2 MoO 6 Is a narrow band gap (E g =2.63eV) semiconductor materials can directly absorb and utilize visible light which accou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/00B82Y30/00B82Y40/00
CPCY02P20/10
Inventor 胡寒梅郑强
Owner ANHUI UNIVERSITY OF ARCHITECTURE