Method for preparing modified serpentine loaded titanium dioxide photocatalyst
A photocatalyst, titanium dioxide technology, applied in physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., can solve the problems affecting practical applications, and the catalyst is difficult to recycle and reuse, and achieve high porosity, strong adsorption, The effect of large specific surface area
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Embodiment 1
[0026] (1) After the serpentine is broken, it is selected that the aperture is 3mm to sieve, and then it is placed in an electromagnetic concentrator to remove iron, and when the amount of iron removal reaches more than 90%, stop the iron removal; the serpentine after the iron removal Soak it in a sulfuric acid solution with a mass concentration of 10% for 2 hours, then dry it with a centrifuge to obtain modified serpentine;
[0027] (2) Mix absolute ethanol, butyl titanate and acetylacetone at a volume ratio of 25:30:1, and stir at room temperature at a rate of 300 rpm for 1.5 h to obtain solution A;
[0028] (3) Combine absolute ethanol, [Bmim]PF 6 (1-ethyl-3-methylimidazolium hexafluorophosphoric acid), distilled water and concentrated hydrochloric acid (mass concentration: 20% to 22%) are mixed according to the volume ratio of 25:10:6:0.2, at room temperature at 300 rpm The rate was stirred for 1h to obtain solution B;
[0029] (4) Mix solution A and solution B at a volu...
Embodiment 2
[0033] (1) After the serpentine is crushed, it is selected that the aperture is 1mm to sieve, and then it is placed in an electromagnetic concentrator to remove iron, and when the amount of iron removal reaches more than 90%, stop the iron removal; the serpentine after the iron removal Soak it in a sulfuric acid solution with a mass concentration of 12% for 1 hour, then dry it with a centrifuge to obtain modified serpentine;
[0034] (2) Mix absolute ethanol, butyl titanate and acetylacetone at a volume ratio of 30:35:1.4, and stir at room temperature at a rate of 300 rpm for 1 hour to obtain solution A;
[0035] (3) Combine absolute ethanol, [Bmim]PF 6 (1-ethyl-3-methylimidazolium hexafluorophosphoric acid), distilled water and concentrated hydrochloric acid (mass concentration 20% to 22%) were mixed at a volume ratio of 20:14:4:0.4, at room temperature at 300 rpm The rate was stirred for 0.5h to obtain solution B;
[0036] (4) Mix solution A and solution B at a volume rati...
Embodiment 3
[0040] (1) After the serpentine is crushed, it is selected that the aperture is 2mm to sieve, and then it is placed in an electromagnetic concentrator to remove iron, and when the amount of iron removal reaches more than 90%, stop the iron removal; the serpentine after the iron removal Soak in a sulfuric acid solution with a mass concentration of 15% for 1.5 hours, then spin dry with a centrifuge to obtain modified serpentine;
[0041] (2) Mix absolute ethanol, butyl titanate and acetylacetone at a volume ratio of 28:32:1.2, and stir at room temperature at a rate of 300 rpm for 1.2 hours to obtain solution A;
[0042] (3) Combine absolute ethanol, [Bmim]PF 6 (1-Ethyl-3-methylimidazolium hexafluorophosphoric acid), distilled water and concentrated hydrochloric acid (20% to 22% in mass concentration) are mixed in a volume ratio of 20 to 25:10 to 14:4 to 6:0.2 to 0.4 , stirring at a rate of 300 rpm at room temperature for 0.8h to obtain solution B;
[0043] (4) Mix solution A a...
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