Method for preparing antibacterial anion exchange membrane by blending copper hydroxide

• Main Authors: LU HAO, SHAO YIFEI, CHEN YITAO, SHEN JIANGNAN, YAO YUYANG
• Format: Patent
• Language: Chinese; English
• Published: 14.04.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; THEIR RELEVANT APPARATUS; TRANSPORTING; TRAPPING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a method for preparing an antibacterial anion exchange membrane by blending copper hydroxide. The method comprises the following steps: (1) purifying and pretreating BPPO; (2) dissolving the BPPO treated in the step (1) into NMP (N-Methyl Pyrrolidone), adding copper hydroxide into a BPPO solution after the BPPO is fully dissolved, sealing, carrying out ultrasonic treatment for 20-40 minutes, and magnetically stirring at room temperature for 12-48 hours to obtain a BPPO-Cu membrane casting solution; (3) placing the prepared BPPO-Cu membrane casting solution on a glass plate, and drying in a vacuum drying oven at 50-100 DEG C for 15-48 hours to remove the solvent, so as to obtain a BPPO-Cu membrane; and (4) putting the prepared BPPO-Cu membrane into a trimethylamine solution, soaking for 1-12 hours, and then repeatedly cleaning in clear water until the surface is clean, thereby obtaining the antibacterial anion exchange membrane. The method disclosed by the invention is simple, good in e