Visible light photocatalyst for constructing non-nitrogen and iron complex with hydrogen-like quinone and uses of the same
A photocatalyst, visible light technology, applied in the direction of organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, catalyst carrier, etc., to achieve the effect of high utilization rate, conversion number and long life
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Embodiment 1
[0032]
[0033] Take commercially available 4-sulfosalicylic acid and ferric sulfate according to the molar ratio of 3:1, and dissolve them separately. When dissolving ferric sulfate, 0.5M sulfuric acid should be added to maintain the acidity (pH≈1), and then mixed and stirred evenly; Sales of strong anion exchange resins with quaternary amine groups (such as Amberlite IRA 900 type (Amberlite IRA 900 type)), after washing and pretreatment, according to the ratio of 0.5 mmol 4-sulfosalicylic acid per gram of resin Add it into a reaction vessel, stir, and let stand for about 24 hours until the upper aqueous solution becomes colorless, then filter and discard the filtrate, and dry the solid particles naturally to obtain a visible light photocatalyst.
[0034] The resulting catalyst is capable of catalyzing H 2 0 2 Oxidative decomposition of toxic and difficult biodegradable azo dye No. 2 orange. The concentration of No. 2 orange dye in polluted water is 4×10 -4 M, the photo...
Embodiment 2
[0042]
[0043] According to the molar ratio of 3:1, take 3-hydroxy-4-carboxybenzyltrimethylammonium chloride and iron sulfate and dissolve them separately. When dissolving iron sulfate, add 0.5M sulfuric acid to maintain the acidity (pH≈1), then mix and stir homogeneous; another commercially available strong cation exchange resin with sulfonic acid groups (such as the 001×7 (732) type strong cation exchange resin produced by Nankai University) was washed and pretreated according to the corresponding 0.5 mmol 3- Add the proportion of hydroxy-4-carboxybenzyltrimethylammonium chloride into the reaction vessel, stir, and let it stand for about 24 hours until the upper aqueous solution becomes colorless, then filter and discard the filtrate, and dry the solid particles naturally to obtain Visible light photocatalyst.
[0044] The catalyst is effective in catalyzing the hydroxylation reaction of aromatic rings, and 2.5 mg and concentration of 5 × 10 -3 M of H 2 o 2 , the conc...
Embodiment 3
[0046]
[0047] Take commercially available 2-hydroxy-4-sulfonic naphthaleneacetic acid and ferric sulfate in a molar ratio of 1:1, and dissolve them separately. When dissolving ferric sulfate, add 0.5M sulfuric acid to maintain the acidity, then mix, and adjust the pH of the solution to about 4. Stir evenly; take another commercially available strong anion exchange resin (such as Amberlite IRA900 type) with quaternary ammonium groups, wash and pretreat according to the ratio of 0.25 mmol of 2-hydroxyl-4-sulfonic naphthaleneacetic acid per gram of resin Add it into a reaction vessel, stir, and let stand for about 24 hours until the upper aqueous solution becomes colorless, then filter and discard the filtrate, and dry the solid particles naturally to obtain a visible light photocatalyst.
[0048] The catalyst of the present invention can catalyze H 2 o 2 Produce OH radical to initiate the polyreaction of styrene, the mass concentration of catalyst 2.5mg and 1ml of the pres...
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