Yeast surface atom transfer imprinted adsorbent, and preparation method and application thereof
A technology of imprinted adsorption and atom transfer, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve problems that have not been reported, and achieve the effect of cheap price, good adsorption performance, and high yield
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[0024] Example 1:
[0025] (1) Preparation of loading initiator on the surface of yeast
[0026] Add yeast to the mixture of thionyl chloride and benzene with a volume ratio of 50:10 (mL), and add yeast and benzene with a mass to volume ratio of 1 g:10 mL, and react at 70°C After 24 h, wash three times with tetrahydrofuran, vacuum dry at 25 ℃, and disperse the dried product in a mixed solution of tetrahydrofuran and anhydrous triethylamine with a volume ratio of 30:1 (mL). The mass-volume ratio of water triethylamine is 1 g: 1 mL. After blowing nitrogen in an ice bath to evacuate oxygen, add isobutyryl bromide with a volume ratio of 1:1 (mL) to anhydrous triethylamine dropwise. React at room temperature for 12 h, wash with ethanol three times, and dry in vacuum at 25 ℃ to obtain the yeast initiator.
[0027] (2) Preparation of yeast surface imprinting adsorbents (MIPs)
[0028] The template molecule cephalexin was added to the mixed solution of methacrylic acid and ethylene glycol ...
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[0031] Example 2:
[0032] (1) Preparation of loading initiator on the surface of yeast
[0033] Add yeast to the mixture of thionyl chloride and benzene with a volume ratio of 100:10 (mL), and add yeast and benzene with a mass to volume ratio of 1.5 g: 10 mL, and react at 80 ℃ 28 h, washed with tetrahydrofuran three times, dried in vacuum at 35 ℃, and dispersed the dried product in a mixed solution of tetrahydrofuran and anhydrous triethylamine with a volume ratio of 40:1 (mL). Water triethylamine is 1.5 g: 1 mL in mass to volume ratio, after blowing nitrogen in an ice bath to evacuate oxygen , Isobutyryl bromide with a volume ratio of 2:1 (mL) to anhydrous triethylamine was added dropwise, reacted at room temperature for 16 h, washed with ethanol three times, and dried under vacuum at 40 ℃ to obtain the yeast initiator.
[0034] (2) Preparation of yeast surface imprinting adsorbents (MIPs)
[0035] The template molecule cephalexin was added to the mixed solution of methacrylic aci...
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