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 m 2/ 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.

A novel molecularly imprinted hydrogel (X-MIP) was developed with poly (allylamine hydrochloride) as monomer and epichlorohydrin as crosslinker. After optimising preparation conditions including reaction temperature, the amount of NaOH and template xylose, the X-MIP was characterised through Fourier transform infrared spectroscopy, scanning electron microscope and swelling ratio. Xylose and glucose were employed to evaluate the adsorption capacity and selectivity of the X-MIP. Its adsorption to xylose followed pseudo-second-order rate kinetics and the adsorption process was multilayer adsorption based on the matched Freundlich isotherm model. Its adsorption capacity to xylose was up to 398.68 mg g −1 . The similar adsorption abilities in five successive runs and the good desorption rate (98.9%) verified its reusability. The selectivity for xylose and glucose could reach 4.70, and their separation factors in simulated xylitol production feedstocks were 591.05 (xylose:glucose, 99:1) and 15.42 (xylose:glucose, 3:1), respectively. Results indicated the prepared X-MIP has good potential in industrial xylose purification.

Cr(vi) is a great threat to the ecological environment and human health, so it is urgent to remove Cr(vi) from the environment.