Solid-phase preparation method and application of chromium-based carbon nitride catalyst

• Main Authors: ZHONG LEI, ZHOU PING, YING MENGFAN, LUO RUN, SUN JIANHUA
• Format: Patent
• Language: Chinese; English
• Published: 22.05.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a solid-phase preparation method and application of a chromium-based carbon nitride catalyst. The preparation method comprises the following steps: adding melamine, chromium sesquioxide and ammonium chloride into an ethanol solution, and carrying out grinding and calcining successively to obtain a final product, namely the chromium-based carbon nitride catalyst. The methodis simple to operate; raw materials are easy to obtain; and the original bulk phase structure of melamine is changed by the solid-phase synthesis method, so the obtained final product is in a porous sheet shape. The porous flaky chromium-based carbon nitride catalyst is beneficial for dispersion of the active component chromium on the surface of the catalyst and adsorption of gas. At a temperatureof 300 DEG C, the removal rate of NO catalyzed and oxidized by the chromium-based carbon nitride catalyst can reach 80%. 本发明公开了一种铬基氮化碳催化剂的固相法制备方法及应用，制备时首先将三聚氰胺、三氧化二铬和氯化铵加入到乙醇溶液中，经过研磨、煅烧后即可得到最终产物。该方法不仅操作简单，原料易得，而且固相合成法改变了三聚氰胺原