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  • 专利标题:   Amphoteric cellulose-based composite material used for e.g. absorbing oil and heavy metal ion in organic wastewater, is obtained by mixing quaternary ammonium sulfonated cellulose, graphene oxide and chitosan, and freeze-drying mixture.
  • 专利号:   CN103497476-A, CN103497476-B
  • 发明人:   CHEN Y, LIN H, XIONG J, SU G
  • 专利权人:   UNIV SOOCHOW
  • 国际专利分类:   B01D017/02, B01D053/02, B01J020/24, B01J020/26, C02F001/28, C08B031/12, C08F220/58, C08F251/02, C08K003/04, C08K009/00, C08K009/02, C08L005/08, C08L051/02, C02F101/20, C02F101/30
  • 专利详细信息:   CN103497476-A 08 Jan 2014 C08L-051/02 201434 Pages: 12 Chinese
  • 申请详细信息:   CN103497476-A CN10483370 16 Oct 2013
  • 优先权号:   CN10483370

▎ 摘　　要

NOVELTY - An amphoteric cellulose-based composite material is obtained by mixing 5-8 pts. wt. quaternary ammonium sulfonated cellulose as carrier, 0.5-3 pts. wt. graphene oxide and 0.5-3 pts. wt. chitosan, freeze-drying resultant mixture and obtaining quaternary ammonium sulfonated cellulose/graphene oxide/chitosan composite porous material. USE - Amphoteric cellulose-based composite material is used for absorbing oil and heavy metal ion in organic wastewater and wastewater, and used as air purification material, and medical absorbent material. ADVANTAGE - The nontoxic and biodegradable amphoteric cellulose-based composite material has excellent mechanical strength and high adsorption capacity, and is safe.