▎ 摘 要
NOVELTY - A semi permeable membrane is formed from graphene that is formed with nanoholes. USE - Semi-permeable membrane for use in a filter device for purifying fluid i.e. liquid (all claimed). ADVANTAGE - The membrane has strong mechanical property, better thermal stability and excellent chemical and electrochemical stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a filter device with a semi-permeable filter film.