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Novel absorption material and preparation method and use thereof

An adsorption material and a new type of technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of large resource and energy consumption, expensive activated carbon, etc., and achieve the effect of cost, simple method, and obvious effect

Inactive Publication Date: 2009-05-06
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] A large amount of methylene blue (MB), Cr 6+ , Pb 2+ Industrial pollutants such as industrial pollutants enter the sewage system and need to be treated. Although activated carbon has been widely used as an adsorbent for pollutants in water bodies, activated carbon is not only expensive, but also consumes a lot of resources and energy in the production process. Efficient wastewater purification, natural clay minerals with adsorptive properties are attracting increasing attention

Method used

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  • Novel absorption material and preparation method and use thereof
  • Novel absorption material and preparation method and use thereof
  • Novel absorption material and preparation method and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Soak 600g of pyrophyllite powder (325 mesh) in 2kg of HCl solution with a concentration of 0.5mol / L and stir. The reaction kettle is kept at a constant temperature of 80°C in an oil bath, and the reaction time is 6h. Repeated washing until the pH value of the lotion is 7 Filter, and dry the filter cake at 80°C for 18 hours in a blast drying oven to obtain a new type of adsorption material, see figure 2 .

Embodiment 2

[0024] Soak 600g of pyrophyllite powder (325 mesh) in 2kg of HCl solution with a concentration of 0.5mol / L and stir. The reaction kettle is kept at a constant temperature of 80°C in an oil bath, and the reaction time is 6h. Repeated washing until the pH value of the lotion is 7 Take the filter cake by filtration, then add water to get pyrophyllite suspension, the mass ratio of water to powder is 1:1, and then ball mill in planetary ball mill for 3 hours, then dry in blast drying oven at 80°C for 18 hours to get the new adsorption material, the speed of the ball mill is controlled at 20r / min.

Embodiment 3

[0026] Get the novel adsorbent material 0.2g that embodiment 1 makes, drop into 100ml concentration and stir in the MB solution of 10mg / L, extract a small amount of solution every 5min, after centrifuging at 800r / min for 3min, spectrophotometric solution concentration is measured. MB's characteristic absorption peak λ max for 665nm, see image 3 .

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Abstract

The invention discloses a novel absorbing material and a preparation method thereof. The preparation method comprises the steps: pyrophyllite mineral powder is steeped in a strong acid solution with the concentration of 0.01 to 7 mol per liter until the color of the strong acid solution is darkened, the solution is water rinsed repeatedly until the rinsing solution reaches the pH value of 7, the solution is filtered, and filter mass is parched at the temperature of 60 to 100 DEG C, thus obtaining the novel absorbing material. The natural mineral absorbing material of the invention that is prepared by the main raw material of pyrophyllite can realize synthesized utilization of mineral resources, has simple preparation method and remarkable effect, can be used for absorbing environmental water body pollutants that contain methylene blue (MB), Cr<6+> or Pb<2+> in water processing and achieve remarkable effect, and has low wastewater purifying cost and high efficiency.

Description

(1) Technical field [0001] The invention relates to a novel adsorption material and a preparation method thereof. Particularly relate to a kind of methylene blue (MB), Cr that is contained in the water body that is used for adsorption treatment 6+ or Pb 2+ Novel adsorbent materials for environmental pollutants. (2) Background technology [0002] A large amount of methylene blue (MB), Cr 6+ , Pb 2+ Industrial pollutants such as industrial pollutants enter the sewage system and need to be treated. Although activated carbon has been widely used as an adsorbent for pollutants in water bodies, activated carbon is not only expensive, but also consumes a lot of resources and energy in the production process. Natural clay minerals with adsorptive properties have attracted increasing attention for efficient wastewater purification. [0003] Pyrophyllite is a kind of aluminosilicate clay material with the structural characteristics of "adsorbed soil", and its molecular formula is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/30
Inventor 盛嘉伟周艳李涓张俭郑精武
Owner ZHEJIANG UNIV OF TECH
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