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Biomass Chemical Engineering ›› 2021, Vol. 55 ›› Issue (5): 15-20.doi: 10.3969/j.issn.1673-5854.2021.05.003

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Compounding of Sapindus-saponin and Its Application for Synthesis of Ni(OH)2/NiOOH Composite Materials

Bing HAN, Fei WANG, Zexue LIU, Haixia LIN, Shuhui ZHAN, Chunrui HAN()   

  1. College of Materials Science and Technology, Beijing Forestry University; MOE Key Laboratory of Wooden Material Science and Application; MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing 100083, China
  • Received:2021-02-19 Online:2021-09-30 Published:2021-09-13
  • Contact: Chunrui HAN E-mail:hanchunrui@bjfu.edu.cn


The natural surfactant sapindus-saponin was extracted from Sapindus mukorossi. The composite properties of sapindus-saponin and cationic surfactant cetyltrimethylamine bromide(CTAB) were studied. Sapindus-saponin and composite surfactants were used to prepare nickel hydroxide composite materials by solvothermal method. The effects of solvents, temperatures, and surfactants on the morphology of the materials were investigated. It was revealed that the compound system had obvious synergistic effect. In detail, the CMC and γCMC of sapindus-saponin were 1 g/L and 41.97 mN/m; when the mass ratio of sapindus-saponin to CTAB was 50:50, the CMC and γCMC of systems decreased drastically to 0.18 g/L and 24.63 mN/m, respectively. The morphology analysis and XRD analysis of Ni(OH)2 composites showed that, when sapindus-saponin was used as surfactant in ethanol system under 180℃, the composite materials with uniform pore flower spherical microsphere structures were obtained, which possessed many thick nanosheets. On the other hand, when sapindus-saponin/CTAB compounded system was used as surfactant in ethanol system under 140℃, spherical coral composite micro-nano materials with uniform morphology were prepared. The two different kinds of composite materials were both Ni(OH)2/NiOOH composites.

Key words: sapindus-saponin, compound system, soft template, nickel hydroxide

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