▎ 摘　　要

NOVELTY - Jacketed reactor made of stainless steel material, lined with PTFE, and including closed reaction space for safe reaction is used. Concentrated sulfuric acid is added to reactor lined with PTFE. Potassium permanganate and multiwalled carbon nanotubes (MWCNT) are added to the reactor, sealed, heated, ultrasonically oscillated, and 30% hydrogen peroxide is added, such that the volume ratio of hydrogen peroxide and concentrated sulfuric acid is 1:15. The resultant material is washed using hydrochloric acid and deionized water, and dried at room temperature to obtain graphene oxide nanoribbons. USE - Preparation of graphene oxide nanoribbons (claimed). ADVANTAGE - The method efficiently and safely provides high-quality graphene oxide nanoribbons having excellent water solubility and reduced structural defects, with high productivity and yield in short period of time without affecting the environment. DETAILED DESCRIPTION - Jacketed reactor made of stainless steel material, lined with PTFE, and including closed reaction space for safe reaction is used. Concentrated sulfuric acid is added to the reactor lined with PTFE, such that the volume of concentrated sulfuric acid and PTFE-lined reactor is 75:100. Potassium permanganate and MWCNT are added to the reactor in the ratio of 5:1. The volume ratio of MWCNT and concentrated sulfuric acid is 1:1 mg/mL. The reactor is sealed, heated at 60-70 degrees C at constant temperature for 3 hours, ultrasonically oscillated, and 30% hydrogen peroxide is added, such that the volume ratio of hydrogen peroxide and concentrated sulfuric acid is 1:15. The resultant material is washed using hydrochloric acid and deionized water, and dried at room temperature to obtain graphene oxide nanoribbons.