• 专利标题:   Composite bentonite useful for treating wastewater, preferably methylene blue wastewater, comprises bentonite and graphene oxide.
  • 专利号:   CN104437359-A
  • 发明人:   LI L, JIANG J, ZHANG C, AI L
  • 专利权人:   UNIV CHINA WEST NORMAL
  • 国际专利分类:   B01J020/20, B01J020/30, C02F001/28, C02F001/58
  • 专利详细信息:   CN104437359-A 25 Mar 2015 B01J-020/20 201551 Pages: 6 Chinese
  • 申请详细信息:   CN104437359-A CN10557305 17 Oct 2014
  • 优先权号:   CN10557305

▎ 摘  要

NOVELTY - Composite bentonite comprises 50 pts. wt. bentonite and 0.5-2 pts. wt. graphene oxide. USE - Composite bentonite is useful for treating wastewater, preferably methylene blue wastewater (all claimed). ADVANTAGE - The composite bentonite can be synthesized by a simple and economical method, can be used conveniently, is environmentally-friendly, and is excellent in adsorption of organic dyes. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of composite bentonite, which involves ultrasonically dispersing bentonite in water to obtain a uniform suspension of bentonite, ultrasonically dispersing graphene oxide in water to obtain a homogeneous solution of graphene oxide, mixing the bentonite suspension and graphene oxide suspension, centrifugally dehydrating, washing, and drying; and (2) usage method of composite bentonite in wastewater treatment, which involves adding composite bentonite as adsorbent to methylene blue wastewater, vibrating at room temperature, and centrifugally separating wastewater and adsorbent.