Preparation method and application of composite photocatalysis material

• Main Authors: YIN SUNA, LIU YUANYUAN, YANG SHENGYANG
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2017
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

A preparation method and an application of a composite photocatalysis material belong to the field of photocatalysis. The AgNPs/g-C3N4 composite photocatalysis material having the advantages of response to visible lights, many active sites, high light absorptivity and high photocatalytic activity is finally obtained through freeze drying, hydrothermal synthesis and high temperature calcination processes. The preparation method of the composite material has the advantages of simple preparation process, mild reaction conditions, cheap and easily available raw materials, low toxicity and environmental protection. The prepared AgNPs/g-C3N4 composite photocatalysis material can catalyze methanol dehydrogenation for preparing hydrogen, and provides a certain reference for the industrial utilization of anhydrous methanol. 种复合光催化材料的制备方法及其应用，属于光催化领域。通过冷冻干燥、水热合成以及高温煅烧等过程，最终得到对可见光响应、活性中心多、光吸收率和光催化活性较高的AgNPs/g-CN复合光催化材料。该复合材料的制备过程简单、反应条件温和，原材料相对廉价、易得、毒性低以及环保。制备的AgNPs/g-CN复合光催化材料在室温下能够催化甲醇脱氢制得氢气，为无水甲醇的工业化利用提供定的参考。