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Attapulgite synergistic adsorbent, preparation method and use thereof
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A technology of attapulgite and adsorbent, which is applied in the field of preparation of attapulgite synergistic adsorbent, which can solve the problems of low concentration pollutant selectivity, low adsorption capacity, and increased cost, and achieve low equipment requirements, rapid adsorption, and removal high rate effect
Active Publication Date: 2021-10-29
HEXI UNIV
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[0004] The purpose of the present invention is to provide an attapulgite synergistic adsorbent to solve the problem that some materials need to be modified during the use of existing adsorbent materials, which increases the cost, and has relatively low selectivity and adsorption capacity for low-concentration pollutants. low problem
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Embodiment 1-1
[0029] Add attapulgite into hydrochloric acid solution, ultrasonically disperse, soak at room temperature, filter and wash until neutral, and dry to obtain acidic attapulgite.
[0030] Wherein, 1g of attapulgite is added into 25ml of 1mol / L hydrochloric acid solution.
[0031] Among them, ultrasonic for 25 minutes, soak for 3 hours.
[0032] Wherein, the drying temperature is 80 degrees Celsius.
Embodiment 1-2
[0034] Add attapulgite into hydrochloric acid solution, ultrasonically disperse, soak at room temperature, filter and wash until neutral, and dry to obtain acidic attapulgite.
[0035] Wherein, 1g of attapulgite is added into 25ml of 3mol / L hydrochloric acid solution.
[0036] Among them, ultrasonic for 20 minutes and soak for 4 hours.
[0037] Wherein, the drying temperature is 90 degrees Celsius.
Embodiment 1-3
[0039] Add attapulgite into hydrochloric acid solution, ultrasonically disperse, soak at room temperature, filter and wash until neutral, and dry to obtain acidic attapulgite.
[0040] Wherein, 1g of attapulgite is added into 25ml of 3mol / L hydrochloric acid solution.
[0041] Among them, ultrasonic for 30 minutes and soak for 5 hours.
[0042] Wherein, the drying temperature is 100 degrees Celsius.
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Abstract
The invention discloses a preparation method and application of an attapulgite synergistic adsorbent, which belongs to the field of water body pollution control, and solves the problem that some materials need to be modified during the use of the existing adsorption materials, which increases the cost and prevents low-concentration pollution. The selectivity and adsorption capacity of materials are relatively low. An attapulgite synergistic adsorbent is composed of attapulgite and composite silane, and the composite silane is silane A and silane B, or silane A and silane C, or silane B and silane C. The advantages of the present invention are: the attapulgite is cheap and easy to obtain as a raw material, realizes rapid adsorption of low-concentration pollutants through a synergistic mechanism, simple operation and low equipment requirements, and the prepared adsorbent has good adsorption performance, and is suitable for low-concentration pollutants in drinking water. The purification of concentrated pollutants is of great significance.
Description
technical field [0001] The invention belongs to the field of water body pollution control, and in particular relates to a preparation method and application of an attapulgite synergistic adsorbent. Background technique [0002] Energy and environmental issues are the two most prominent issues in the 21st century. Environmental issues caused by water pollution have been widely concerned by countries all over the world. At present, the main pollutants in the environment include dyes, pesticides, heavy metal ions, phenolic compounds, aromatic carbohydrates, etc. Among them, especially dyes and organic pollutants, due to their slow biodegradability, high toxicity and difficulty in detection, have extremely serious hazards to human health and the natural environment. [0003] In recent years, porous materials traditionally used for pollutant adsorption: activated carbon, molecular sieves, and resins have occupied a dominant position in the adsorption field. However, in the rese...
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Application Information
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