Adsorbing material for efficiently removing mercury and preparation method thereof

• Main Authors: WANG YONGMIN, DENG WANYING, WANG DINGYONG, LI DAIKUN, XIANG YUPING
• Format: Patent
• Language: Chinese; English
• Published: 20.02.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

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