Method for modifying anion exchange membrane by using lysozyme and THPS

• Main Authors: CHEN YITAO, SHEN JIANGNAN, YAO YUYANG, LIAO JUNBIN, LU YUEYUE
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention discloses a method for modifying an anion exchange membrane by using lysozyme and THPS. The method comprises the following steps: step 1, pretreating a commercial anion exchange membrane; step 2, adding a reaction solution 1 containing L-dopamine and lysozyme into a feed liquid chamber of the modification device, enabling the single surface of the pretreated original membrane to be in contact with the reaction solution 1, stirring at room temperature to react, pouring the reaction solution, and fully washing with deionized water to obtain a membrane named as an E-Lys membrane; and step 3, adding a reaction solution (2) containing THPS into the feed liquid chamber, enabling the modified surface of the E-Lys membrane to be in contact with the reaction solution (2), carrying out Mannich-type reaction, continuously and completely reacting at room temperature, pouring out the reaction solution, taking out the modified membrane, and washing the modified membrane with deionized water to obtain the E-Ly