Preparation method of high-activity bismuth molybdate/biochar composite photocatalyst based on strong interfacial interaction
A biochar, bismuth molybdate technology, applied in the field of photocatalysis, can solve the problems of high cost and complex synthesis process of adsorption materials, and achieve the effects of improving transportation efficiency, enriching surface functional groups, and developing mesoporous structure.
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Embodiment 1
[0027] 1. Weigh 10.0000g of bamboo charcoal, grind it evenly, wash and dry it with water, and thermally degrade it at 600°C for 4 hours in a nitrogen atmosphere. After cooling to room temperature, it is acid-washed and washed with water until neutral, then vacuum-dried at 80°C for 12 hours, and ground sieve, marked BC spare;
[0028] 2. Dissolve 19.4028g of bismuth nitrate pentahydrate and 5.4669g of hexadecyltrimethylammonium bromide in 300mL of deionized water, and ultrasonically stir for 60min. The obtained solution is marked as A solution for future use;
[0029] 3. Dissolve 4.8388g of sodium molybdate dihydrate and 5.4669g of cetyltrimethylammonium bromide in 300mL of deionized water, stir ultrasonically for 60min, and mark the obtained solution as B solution for later use;
[0030] 4. Mix and stir the A and B solutions at room temperature, put them into a reaction kettle, place them in an oven for hydrothermal reaction at 180°C for 20 hours, take out the reaction solutio...
Embodiment 2
[0033] The difference from Example 1 is that in Step 5, 3.2000 g of the BC powder described in Step 1 and 0.8000 g of the BMO powder described in Step 4 were weighed and placed in a high-speed ball mill, and ball milled for 12 hours at a speed of 500 rpm to obtain Bi 2 MoO 6 / biochar composite photocatalyst, marked as 20% BMO / BC.
Embodiment 3
[0035] The difference from Example 1 is that in step 5, 2.8000 g of the BC powder described in step 1 and 1.2000 g of the BMO powder described in step 4 were weighed and placed in a high-speed ball mill, and ball milled for 12 hours at a speed of 500 rpm to obtain Bi 2 MoO 6 / biochar composite photocatalyst, marked as 30% BMO / BC.
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