For the reduction of bovine serum proteins from wastewater

a novel mixed matrix membrane was prepared by functionalizing the substrate material polyaryletherketone (PAEK)

followed by carboxyl groups (C-SPAEKS)

and then adding amino-functionalized UiO-66-NH

2

(Am-UiO-66-NH

2

). Aminofunctionalization of UiO-66 was accomplished by melamine

followed by an amidation reaction to immobilize Am-UiO-66-NH

2

which was immobilized on the surface of the membrane as well as in the pore channels

which enhanced the hydrophilicity of the membrane surface while increasing the negative potential of the membrane surface. This nanoparticle-loaded ultrafiltration membrane has good permeation performance

with a pure water flux of up to 482.3 L·

m-2

·

h-1

for C-SPAEKS/AmUiO-66-NH

2

and a retention rate of up to 98.7% for bovine serum albumin (BSA)-contaminated solutions. Meanwhile

after several hydrophilic modifications

the flux recovery of BSA contaminants by this series of membranes increased from 56.2% to 80.55% of pure membranes. The results of ultrafiltration flux time tests performed at room temperature showed that the series of ultrafiltration membranes remained relatively stable over a test time of 300 min. Thus

the newly developed mixed matrix membrane showed potential for high efficiency and stability in wastewater treatment containing bovine serum proteins.