Adsorption of β-carotene on modified magnesium silicate

作者：Sun Shanshan^*; Guo Ning; Fu Yongfeng

来源：Russian Journal of Physical Chemistry, 2016, 90(2): 443-450.

DOI：10.1134/S0036024415130348

• modified magnesium silicate
• hydrothermal
• adsorption
• organic solvent
• beta-carotene

Modified flocculation magnesium silicate is prepared by a hydrothermal process at 120A degrees C for 18 h after adding Al-2(SO4)(3) into the magnesium silicate gel. Compared with standard magnesium silicate with 328.116 m(2) g(-1) surface area, this modified magnesium silicate has a bigger BET surface area of 536.803 m(2) g(-1) and a lower interlayer water content. Modified magnesium silicate exhibits high beta-carotene adsorption with a maximum adsorption capacity of 364.96 mg g(-1). It is shown that when suspended in organic solvent, this material can be used effectively for carotenoid separation. Furthermore, our results suggest that modified magnesium silicate may be a promising candidate as an absorbent in the decoloring of oil.

• 单位
  齐鲁工业大学; 南京工业大学