▎ 摘　　要

NOVELTY - The straw comprises a case (10) that is formed with a graphene thin film filter having fine pores into which liquid is introduced, liquid inlet (12), a liquid outlet (14) and an inner space (16). An antibacterial layer (20) is coated on the case surface. The antibacterial layer is formed of silver iodide. USE - Antibiotic filtration straw used for biological filtering of polluted liquid such as drinking water. ADVANTAGE - The quality of the drinking water can be improved by inhibiting the propagation of bacteria on the drinking water, sterilizing the contaminated liquid and removing the salt in the liquid. The straw can suppress or sterilize the propagation of bacteria present in the liquid phase such as seawater or contaminated liquid. Even after the straw having the antibacterial and filtering function is removed from the liquid such as drinking water, the already used silver and iodine components remain in the drinking water, so that the sterilization effect by the indirect contact can be maintained for desired period. The straw can secure safety when silver ions and iodine ions can be dissolvable harmlessly to human body, so that the sterilizing effect can be maintained constantly, and convenience for use can be ensured. The contaminants can be filtered easily. The straw having antibacterial and filtering function can save time, cost, and effort for moving to specific place or use expensive equipment, so as to ensure portability, economy, and convenience. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view and sectional view of the antibiotic filtration straw. Case (10) Liquid inlet (12) Liquid outlet (14) Inner space (16) Antibacterial layer (20)