Abstract: An automatic water filtering purifying bottle relates to a technical field of water purification and includes a bottle body and a filter device. The bottle body includes a raw water cavity and a purified water cavity. The raw water cavity and the purified water cavity are sequentially disposed along an axis direction. The bottle body defines a raw water opening and a purified water opening. The raw water opening is capable of being opened and closed. The raw water opening is configured to communicate with the raw water cavity. The purified water opening is capable of being opened and closed. The purified water opening is configured to communicate with the purified water cavity. The filter device is configured to filter water in the raw water cavity and is communicated with the raw water cavity and the purified water cavity.

Abstract: The present invention involves a carbon nanofiber composite water purification material. The carbon nanofiber composite water purification material is prepared by the following components in parts by weight: 70-80 parts of activated carbon cellulose, 6-10 parts of lemon powder, 6-10 parts of Jew's ear powder, and 1-2 parts of graphene oxide. The present invention also involves a filter cartridge. The filter cartridge includes a filter cartridge body comprising a plastic skeleton and a flat membrane which coats an outer surface of the plastic skeleton; the plastic skeleton is provided with a plurality of water passage holes; the carbon nanofiber composite water purification material is provided on an outer surface of the flat membrane. The carbon nanofiber composite waste purification material of the present invention has high nano-porosity, strong adsorption abilities, and a long lifetime.