Method for preparing carbon nano tube by hydrothermal method

A method for preparing a carbon nanotube by a hydrothermal method belongs to the technical field of nano material preparation, and comprises the following steps: placing graphene oxide (GO) powder in deionized water, and carrying out ultrasonic treatment to obtain a GO solution; dropwise adding diluted hydrochloric acid into the GO solution to obtain an acidified GO solution; and putting the acidified GO solution into a reaction kettle, and reacting at the temperature of 200 DEG C for 2 hours to obtain the carbon nanotube. According to the method, the graphene oxide is used as a source, and the self-curling effect of the graphene oxide under the weakly acidic hydrothermal condition is utilized, so that a catalyst and strong acid do not need to be introduced, the preparation process is simple, and the application of the graphene oxide in the fields of catalyst carriers and energy storage is facilitated. 一种水热法制备碳纳米管的方法，属于纳米材料制备技术领域，其制备方法是将氧化石墨烯(GO)粉末置于去离子水中，经过超声，获得GO溶液；向GO溶液滴入稀盐酸，得到酸化的GO溶液；再将酸化GO溶液置于反应釜中，反应温度20