Method for preparing carbon nitrogen nanotube from agriculture and forestry biomass

• Main Authors: LI GUANYAN, WANG JINGZHEN, YU QING, MA QIAN, PENG WANXI, ZHOU PANLI, WU FENGJUAN, CHEN XIANGMENG, LI HUAZHEN
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention discloses a method for preparing carbon-nitrogen nanotubes from agriculture and forestry biomass. The method comprises the following steps: pyrolyzing sulfate lignin, a catalyst and a nitrogen precursor in a protective gas atmosphere; the mass ratio of the sulfate lignin to the catalyst is (2-7): 1. According to the method, the carbon-nitrogen nanotube with good physical and chemical properties and catalytic performance can be obtained by limiting the variety and dosage of the preparation raw materials and through a simple pyrolysis method, economic utilization of the sulfate lignin is achieved, and the preparation process of the carbon-nitrogen nanotube is simplified. 本发明公开了一种农林生物质制备碳氮纳米管的方法，该方法包括将硫酸盐木质素、催化剂和氮前体在保护气体氛围中进行热解；所述硫酸盐木质素和催化剂的质量比为2～7:1。该方法通过限定制备原料的种类、用量，并通过简单的热解法，即可获得物化性能和催化性能均良好的碳氮纳米管，实现了硫酸盐木质素的经济化利用，并简化了碳氮纳米管的制备流程。