A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater
Source abstract
Abstract
A novel hydrophilic surface molecularly imprinted polymer from bi-functional monomers on a porous carbon nanosphere support (AMPS-Am-MIP) was prepared to improve the selective adsorption capacity towards phenol from coking wastewater using hydrophilic 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and acrylamide (Am) as the monomers, and phenol as the imprinting molecule. The surface morphology, functional groups, thermal stability and hydrophilicity of AMPS-Am-MIP were investigated, and the adsorption properties including kinetics, isotherms, selectivity and regeneration were tested. Results showed that the adsorption of AMPS-Am-MIP towards phenol in water reaches equilibrium in 180 min and the highest adsorption capacity was 96.59 mg g-1. Its selection factor for phenol is as high as 1.67 in the presence of structural analogs, quinoline and hydroquinone. The adsorption capacity remained above 80% of the initial adsorption value after five adsorption−regeneration cycles. When the pH value of the phenol-containing water was around 8, close to that of coking wastewater, the adsorption capacity reached 46.84 mg g-1, indicating the applicability and high efficiency of AMPS-Am-MIP for phenol adsorption in alkaline coking wastewater.
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Research context
OpenAlex topics: Analytical chemistry methods development · Adsorption and biosorption for pollutant removal · Water Quality Monitoring and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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