A kind of molasses-based carbon material with ultra-high ultra-microporous and its preparation method and application
A technology of porous molasses and carbon materials, which is applied in the field of ultra-high and ultra-microporous molasses-based carbon materials and its preparation, can solve the problems of low proportion of ultra-micropore pore volume, difficult chemical adsorption, and low adsorption capacity. Simple, high adsorption capacity, and reproducible results
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Embodiment 1
[0030](1) Dissolve 6g of molasses (sugar cane molasses), 0.5g of sodium tetraborate and 0.1g of DCDA in 40ml of soft water, add 0.03g of nickel nitrate, stir for 2h, place in a hydrothermal reactor, and then react at 200°C 10h, filter and dry to obtain the carbon precursor;
[0031](2) The carbon precursor and KOH are prepared at a mass ratio of 1:2, and then mechanically stirred and evenly mixed, and then loaded into the tube furnace for temperature-programming activation (the first-stage temperature-raising rate is 2°C / min. Raise the temperature to 300℃, and activate at this temperature for 2h; the second stage temperature program rate is 2.5℃ / min, from 300℃ to 500℃, and maintain activation at this temperature for 4h) to obtain crude molasses Carbon material; then the crude molasses-based carbon material is pickled with 1mol / L hydrochloric acid, and washed with soft water for many times, and then the material is suction filtered and dried. The final molasses-based carbon material is ...
Embodiment 2
[0033](1) Dissolve 8g of molasses (sugar cane molasses), 0.75g of sodium tetraborate and 1.0g of DCDA in 30ml of soft water, add 0.02g of nickel nitrate, stir for 1h, place in a hydrothermal reactor, and then react at 190℃ 12h, filter and dry to obtain the carbon precursor;
[0034](2) Preparation of the carbon preamble and KOH by mass 1: 2, and then mechanically stir well, load the tube furnace, performing the rising temperature and activation (the first stage water temperature rate is 3 ° C / min, by the room) Turns to 500 ° C and activated at this temperature; the second phase of the stage was 5 ° C / min, raised from 500 ° C to 690 ° C, and the activation of activation at this temperature), obtained crude sugar group The carbon material was carbon material, and then the crude glucose-based carbon material was purged with 1 mol / L hydrochloric acid, and the mixture was carried out by soft water, then the material was filtered, dried to give a sugar-based carbon material. Named D-MA...
Embodiment 3
[0036](1) 10 g of glucogene, 1 g of sodium tetraborate and 0.5 gdcda were dissolved in 50 mL soft water, and 0.01 g of nickel nickel nickel was added, stirred for 3 h, placed in a hydrothermal reaction kettle, at 210 ° C for 14 h, filtration, drying Get carbon precursor;
[0037](2) Preparation of the carbon preamble and KOH by mass ratio of 1: 2, then mechanically stir evenly, load the tube furnace, and the procedural temperature is activated (the first stage temperature rate is 4 ° C / min, "by the room) Tungre to 400 ° C and activated at this temperature; the second phase of the prime rate of 7 ° C / min was 7 ° C / min, raised from 400 ° C to 600 ° C, and the activation of activation at this temperature), the crude mola honey was obtained. The base carbon material then washed with 1 mol / L hydrochloric acid, and was purged with a soft water, and the material was filtered, dried to give a sugar-based carbon material, named D-MACS- 3 #.
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Abstract
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