Adsorbing material for efficiently removing mercury and preparation method thereof
The invention discloses an adsorption material for efficiently removing mercury and a preparation method thereof, and the preparation method comprises the following steps: cutting cellulose into pieces, carrying out ultrasonic washing in absolute ethyl alcohol to remove impurities, and carrying out...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
20.02.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses an adsorption material for efficiently removing mercury and a preparation method thereof, and the preparation method comprises the following steps: cutting cellulose into pieces, carrying out ultrasonic washing in absolute ethyl alcohol to remove impurities, and carrying out vacuum drying to obtain degreased cellulose; the preparation method comprises the following steps: adding degreased cellulose into an organic solution containing bromoacetyl bromide, stirring and reacting at 25-60 DEG C for 24-72 hours, filtering, washing with absolute ethyl alcohol, and drying to obtain brominated cellulose; the preparation method comprises the following steps: adding brominated cellulose and sodium hydrosulfide into absolute ethyl alcohol under the protection of nitrogen, stirring and reacting at 60-90 DEG C for 24-96 hours, filtering, washing with water or ethyl alcohol, and drying to obtain the adsorbing material. The method is low in cost, the density and dispersity of sulfydryl functional gro |
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Bibliography: | Application Number: CN202311664250 |