• 专利标题:   Preparing graphene oxide-sodium alginate composite microsphere useful for phase change energy storage and water purification, comprises dissolving sodium alginate in deionized water and placing graphene oxide in deionized water.
  • 专利号:   CN111215008-A
  • 发明人:  
  • 专利权人:   QIDONG MAOCAI IND CO LTD
  • 国际专利分类:   B01J013/02
  • 专利详细信息:   CN111215008-A 02 Jun 2020 B01J-013/02 202052 Pages: 4 Chinese
  • 申请详细信息:   CN111215008-A CN11410600 24 Nov 2018
  • 优先权号:   CN11410600

▎ 摘  要

NOVELTY - Preparing graphene oxide-sodium alginate composite microsphere comprises dissolving 5-15 pts. wt. sodium alginate in 90-100 pts. wt. deionized water, placing 4-6 pts. wt. graphene oxide in 50-60 pts. wt. deionized water, performing ultrasonic dispersion for 2.5-3.5 hours, adding into the sodium alginate aqueous solution to continue ultrasonic dispersion for 25-35 minutes, dissolving 25-35 pts. wt. calcium chloride dihydrate in 90-100 pts. wt. deionized water, slowly and uniformly dropping the graphene oxide sodium alginate mixed solution into the calcium chloride dihydrate fixative, reacting for 40-50 minutes, washing with deionized water for 4-6 times, treating the prepared product for 11-13 minutes under the condition of microwave power of 740-760 W and cooling. USE - The microsphere is useful for phase change energy storage, water purification, and building energy saving. ADVANTAGE - The method is simple, environmentally-friendly, non-toxic and low cost and ensures controllable particle size of the microspheres.