A method for preparing a high-performance graphite-phase carbon nitride photocatalytic material

• Main Authors: JI XUEQIANG, LI TONG, WU JIAJIE, ZHAO ZIQIONG, ZHAO YUANCHUN
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

A method for preparing a high-performance graphite-phase carbon nitride photocatalytic material is disclosed. The method includes subjecting a nitrogen-rich compound, as a precursor, to direct pyrolysis and polycondensation in a quasi-closed condition to prepare the graphite-phase carbon nitride material, with the pyrolysis temperature being 500-600 DEG C, and temperature maintaining time being 2-12 hours. The preparation is performed in air, and a sealed reactor is connected to a fine tube having an opening to maintain the inner atmospheric pressure state of the reactor. The prepared materialhas high crystallization performance, a high specific surface area, good dispersibility in water, and high performance for photocatalytic water splitting to prepare hydrogen and organic pollutant degradation. The method is simple in process and easy to operate, does not need introduction of any outer gas, and has a wide application prospect. 本发明公开了种高性能石墨相氮化碳光催化材料的制备方法，以富氮化合物为前驱体，在准封闭条件下直接通过热解缩聚制备石墨相氮化碳材料，热解温度为500-600℃，保温