Mesoporous molecular sieves with crystal structures and preparation method of mesoporous molecular sieves
A technology of mesoporous molecular sieves and crystal structures, applied in molecular sieves and base exchange compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of poor hydrothermal stability and limited applications of mesoporous molecular sieves
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Embodiment 1
[0028] Weigh 2.0 g of nickel nitrate and dissolve it in 10 ml of deionized water, then mix it with 25 ml of disodium edetate solution (saturated solution at 20 °C), and record it as A. Add 4.5 g of cetyltrimethylammonium bromide to 34 ml of deionized water (heat to 60 °C to facilitate dissolution), mix A with cetyltrimethylammonium bromide, and place in a water bath at 50 °C Stir for 30 min and record as B. 2.25 g of white carbon black and 0.6 g of NaOH were added to 10 ml of deionized water, and after stirring for 30 min, B was added to the mixture of white carbon black and NaOH. Stir continuously for 12 h in a water bath at 50 °C, then transfer to a polytetrafluoroethylene-lined reaction tank, and crystallize at 160 °C for 5 days. After the crystallization, it was cooled to room temperature, filtered with suction, washed until the pH of the filtrate was 7, dried at 110 °C for 24 h, then programmed to heat up to 550 °C at a rate of 1 °C min-1, and kept for 5 h. The obtained...
Embodiment 2
[0030] Weigh 2.6g of nickel nitrate and dissolve it in 10ml of deionized water, then mix it with 25ml of disodium ethylenediaminetetraacetic acid solution (saturated solution at 20°C), and record it as A. Add 4.5 g of cetyltrimethylammonium bromide to 34 ml of deionized water (heat to 60 °C to facilitate dissolution), mix A with cetyltrimethylammonium bromide, and place in a water bath at 50 °C Stir for 30 min and record as B. 2.25 g of white carbon black and 0.6 g of NaOH were added to 10 ml of deionized water, and after stirring for 30 min, B was added to the mixture of white carbon black and NaOH. Stir continuously for 12 h in a water bath at 50 °C, then transfer to a polytetrafluoroethylene-lined reaction tank, and crystallize at 160 °C for 5 days. After the crystallization, it was cooled to room temperature, filtered with suction, washed until the pH of the filtrate was 7, dried at 110 °C for 24 h, then programmed to heat up to 550 °C at a rate of 1 °C min-1, and kept fo...
Embodiment 3
[0032] Weigh 3.2g of nickel nitrate and dissolve it in 10ml of deionized water, then mix it with 25ml of disodium ethylenediaminetetraacetic acid solution (saturated solution at 20°C), and record it as A. Add 4.5 g of cetyltrimethylammonium bromide to 34 ml of deionized water (heat to 60 °C to facilitate dissolution), mix A with cetyltrimethylammonium bromide, and place in a water bath at 50 °C Stir for 30 min and record as B. 2.25 g of white carbon black and 0.6 g of NaOH were added to 10 ml of deionized water, and after stirring for 30 min, B was added to the mixture of white carbon black and NaOH. Stir continuously for 12 h in a water bath at 50 °C, then transfer to a polytetrafluoroethylene-lined reaction tank, and crystallize at 160 °C for 5 days. After the crystallization, it was cooled to room temperature, filtered with suction, washed until the pH of the filtrate was 7, dried at 110 °C for 24 h, then programmed to heat up to 550 °C at a rate of 1 °C min-1, and kept fo...
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