Details

Autor(en) / Beteiligte

• Liu, Jia
• Song, Qianyi
• Zheng, Wenqing
• Jia, Wenhui
• Jia, Haijiao
• Nan, Yaqin
• Ren, Fangfang
• Bao, James Jianmin
• Li, Youxin

Titel

Preparation of boronic acid and carboxyl‐modified molecularly imprinted polymer and application in a novel chromatography mediated hollow fiber membrane to selectively extract glucose from cellulose hydrolysis

Ist Teil von

• Journal of separation science, 2022-07, Vol.45 (13), p.2415-2428

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• A novel boronic acid and carboxyl‐modified glucose molecularly imprinted polymer were prepared through suspension polymerization, which is based on 1.0 mmol glucose as a template, 1.2 mmol methacrylamidophenylboronic acid, and 6.8 mmol methacrylic acids as monomers, 19 mmol ethyleneglycol dimethacrylate, and 1 mmol methylene‐bis‐acrylamide as crosslinkers. The prepared glucose‐molecularly imprinted polymer had a particle size of 25–70 μm, and was thermally stable below 215°C, with a specific surface area of 174.82 m2/g and average pore size of 9.48 nm. The best selectivity between glucose and fructose was 2.71 and the maximum adsorption capacity of glucose‐ molecularly imprinted polymer was up to 236.32 mg/g which was consistent with the Langmuir adsorption model. The similar adsorption abilities in six successive runs and the good desorption rate (99.4%) verified glucose‐molecularly imprinted polymer could be reused. It was successfully used for extracting glucose from cellulose hydrolysis. The adsorption amount of glucose was 2.61 mg/mL and selectivity between glucose and xylose reached 4.12. A newly established chromatography (glucose‐molecularly imprinted polymer) mediated hollow fiber membrane method in time separated pure glucose from cellulose hydrolysates on a large scale, and purified glucose solution with a concentration of 3.84 mg/mL was obtained, which offered a feasible way for the industrial production of glucose from cellulose hydrolysates.