Environmental-friendly enzyme nanoreactors with high adsorption capacity for long-time and efficient treatment of pollutants under visible light irradiation

Enzyme nanoreactors are novel, green, and economical biocatalysts that possess high catalytic activity and cause no harm to the environment. Here, ECC@PPbP nanoreactors are synthesized with a distinctive structure 'CoreResident-Shell linkage' structure, designed for excellent photo-response. In addition, owing to the amphiphilic polymer shell, which participated in hydrogen bonding, n-pi stacking, and pi-pi stacking with the RB19 molecules, the ECC@PPbP nanoreactors showed excellent adsorption. The maximum RB19 adsorption capacity of ECC@PPbP nanoreactors was appointed to reach 608.57 mg center dot g(-1) at 303 K from Langmuir model. And the nanoreactors showed highly efficient degradation of low concentration Reactive Blue 19, an anthraquinone dye, that got the final removal ratio of 100 % within 20 min under visible light irradiation. The ECC@PPbP nanoreactors not only achieved efficient separation and transfer of photogenerated electron-hole pairs, but also prevented active oxygen species from destroying alcohol dehydrogenases, leading to strong cycling stability.