Method for degrading bisphenol A by activating sodium percarbonate with nanometer zero valent iron
A nano-zero-valent iron and sodium percarbonate technology, applied in the field of analytical chemistry, can solve the problems of biological organism growth and reproduction and adverse effects of endocrine, difficulty in separation and recycling, high cost of iron sludge treatment, etc., to achieve stable activity, high activity, easy-to-handle effects
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[0033] The method according to Embodiment 1 of the present invention uses nanometer zero-valent iron to degrade bisphenol A, comprising the following steps:
[0034] (1) Preparation of nanometer zero-valent iron (nFe 0 ); The preparation process of the nanometer zero-valent iron is:
[0035] (1-1) First boil the ultrapure water for 20 minutes, then pass high-purity nitrogen into the ultrapure water for 30 minutes to remove the oxygen and cool it to obtain anaerobic water, and weigh 0.01mol of FeSO 4 ·7H 2 O and 0.02 mol of NaBH 4 respectively dissolved in 50ml of anaerobic water to obtain FeSO 4 solution and NaBH 4 solution;
[0036] (1-2) The configured FeSO 4 ·7H 2 The O solution was placed in a three-necked flask equipped with mechanical stirring, and NaBH was slowly and evenly added dropwise to it with a rubber dropper. 4 solution, mechanical stirring during the dropping process, Fe 2+ with BH 4 - The ions react as follows:
[0037] Fe 2+ +2BH 4 - +6H 2 O→n...
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