Preparation method of porous conjugated microporous polymer and application of porous conjugated microporous polymer to gold recovery

• Main Authors: JIANG HONGWEI, YE MANYI, CUI WEIRONG, FAN XIAOYI, YU WENJING, WANG YUXUAN, LU YUEHAO, WEI HAOFENG, GAN JINGYI, CHEN YIRU, CHENG HUITING, LIAO LIEQIANG, LIU YANFANG
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to the technical field of photocatalytic materials, and discloses a preparation method of a porous conjugated microporous polymer and application of the porous conjugated microporous polymer to gold recoverability The preparation method comprises the following steps: mixing 2, 5-dibromothieno [3, 2-B] thiophene, 4, 7-diethynylbenzo [C] [1, 2, 5] thiadiazole, tetrakis (triphenylphosphine) palladium, cuprous iodide, N, N-dimethylformamide and triethylamine, and performing ultrasonic treatment to obtain a reaction mixed solution; and carrying out Sonogashira coupling reaction on the reaction mixed solution to obtain the porous conjugated microporous polymer. The BTP-DET prepared by the invention has a one-dimensional D-pi-A conjugated skeleton, and can enhance pi-electron delocalization and reduce an optical band gap, so that the activity of photocatalytic reduction of Au < 3 + > is remarkably improved. Experimental results show that the introduction of the alkynyl unit greatly improves the