Preparation method of silicon dioxide nanotube with cellulose structure

The invention discloses a preparation method of a silicon dioxide nanotube with a cellulose structure, which comprises the following steps: mixing and stirring organosilane, lower alcohol and hydrochloric acid to form a mixed solution, and stirring for 3-5 hours to form transparent silica sol; the method comprises the following steps: putting quantitative filter paper as a template into silica sol for soaking, depositing a silane oligomer on the surface of the filter paper, washing and drying the filter paper, and calcining to remove the filter paper template, thereby obtaining the silicon dioxide nanotube. According to the method, the use of an organic template agent is avoided, the environmental pollution is small, the raw material source is wide, the cost is low, and the prepared silicon dioxide nanotube has high specific surface area, can meet various compounding and doping requirements, can form a composite material with various metal oxides, and has wide application in the fields of photocatalysis and s