▎ 摘　　要

NOVELTY - Method for producing a carbon-containing material from coffee grounds involves (a) preparing coffee grounds, (b) generating a carbon material from the coffee grounds, and (c) reacting the carbon material with a decomposition agent. USE - The method is useful for producing carbon-containing material, which is used in a complex. The carbon-containing material is chosen from graphene, graphene allotropes, graphene derivatives, carbon nanotubes, carbon nanotube derivatives, and aromatic hydrocarbon. The aromatic hydrocarbon is chosen from 2-methoxy naphthalene, 2-naphthol, cinnamaldehyde and isophthalic acid (all claimed). The complex is used in (i) energy field, electronic field, precision machinery field, high temperature machine field, medicine field, food field, cosmetics field, and wastewater treatment field, (ii) an electrode material for an energy storage device, a three dimensional printer material, an electronic device material, a semiconductor material, a sensor material, a filter material, a surgical medical tool material, and container material for food storage, and (iii) a pharmaceutical, drug, cosmetic, elastic material, shielding material, antibacterial material, and sensor material. ADVANTAGE - The method produces carbon-containing material with high yield, high value and high purity, and improves recyclability of coffee grounds. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a carbon-containing material being produced by above-mentioned method, where (i) carbon-containing material includes one or more chosen from graphene, graphene allotropes, graphene derivatives, carbon nanotubes, carbon nanotube derivatives, and aromatic hydrocarbon, and (ii) carbon-containing material is obtained by synthesizing at least one carbon precursor chosen from hydrocarbon-containing compounds of formula (I) or (II) among components contained in coffee grounds. Ra,Rb = H, OH, aliphatic hydrocarbyl, aryl or OCORc; Rc = aliphatic hydrocarbyl or aryl;and R1,R2,R3 = H, OH, aliphatic hydrocarbyl, aryl, CHO or COOH.