Preparation method and application of BN/MoO3 composite photocatalytic material
A technology of composite photocatalysis and preparation steps, which is applied in the field of composite material preparation and photocatalysis technology application, can solve the problems of insufficient quantum efficiency and limited visible light conversion ability, and achieves the improvement of catalytic activity, which is conducive to effective separation and simple method and process. Effect
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Embodiment 1
[0019] Example 1: BN / MoO 3 The preparation and research of its photocatalytic properties include the following steps:
[0020] (1) Dissolve 0.1g of boric acid and 2.4g of urea in 40ml of distilled water and heat to 65°C until the water evaporates completely.
[0021] (2) Dry the mixture under nitrogen (N 2 ) after calcination at medium and high temperature for 5 hours, uniform BN nanosheets were obtained.
[0022] (3) Put 3 g of ammonium molybdate in the ark, put it into the muffle furnace, and under the condition of nitrogen protection, the temperature is controlled at 500 ° C for 2 h to obtain the monomer MoO 3 .
[0023] (4) Weigh 0.015 g BN and 0.485 g MoO respectively 3 Place in 50 mL of absolute ethanol, ultrasonically disperse for 2 h to form a milky white solution, dry at 100 °C for 8 h, take the dried solid powder and grind it in a mortar for 30 min, and then calcinate at 300 °C for 6 h to obtain BN / MoO 3 .
Embodiment 2
[0024] Example 2: BN / MoO 3 The preparation and research of its photocatalytic properties include the following steps:
[0025] (1) Dissolve 0.1g of boric acid and 2.4g of urea in 40ml of distilled water and heat to 65°C until the water evaporates completely.
[0026] (2) Dry the mixture under nitrogen (N 2 ) after calcination at medium and high temperature for 5 hours, uniform BN nanosheets were obtained.
[0027] (3) Put 3g of ammonium molybdate in the ark, put it into the muffle furnace, and under the condition of nitrogen protection, the temperature is controlled at 500°C for 2h to obtain the monomer MoO 3 .
[0028] (4) Weigh 0.005 g BN and 0.495 g MoO respectively 3 Place in 50 mL of absolute ethanol, ultrasonically disperse for 2 h to form a milky white solution, dry at 100 °C for 8 h, take the dried solid powder and grind it in a mortar for 30 min, and then calcinate at 300 °C for 6 h to obtain BN / MoO 3 .
Embodiment 3
[0029] Example 3: BN / MoO 3 The preparation and research of its photocatalytic properties include the following steps:
[0030] (1) Dissolve 0.1g boric acid and 2.4g boric acid in 40ml distilled water, heat to 65℃ and keep constant temperature until the water evaporates completely.
[0031] (2) Dry the mixture under nitrogen (N 2 ) after calcination at medium and high temperature for 5 hours, uniform BN nanosheets were obtained.
[0032] (3) Put 3 g of ammonium molybdate in the ark, put it into a muffle furnace, and calcine at 500 °C for 2 h under nitrogen protection to obtain monomer MoO 3 .
[0033] (4) Weigh 0.025 g BN and 0.475 g MoO respectively 3 Place in 50 mL of absolute ethanol, ultrasonically disperse for 2 h to form a milky white solution, dry at 100 °C for 8 h, take the dried solid powder and grind it in a mortar for 30 min, and then calcinate at 300 °C for 6 h to obtain BN / MoO 3 .
[0034] figure 1 For the prepared BN / MoO of examples 1, 2, and 3 3 Pho...
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