Composite nanofiltration membrane capable of efficiently intercepting ammonium sulfate and ammonium nitrate while adsorbing and removing mercury ions and preparation method thereof

Abstract

Disclosed are a composite nanofiltration membrane for efficiently intercepting ammonium sulfate and ammonium nitrate and simultaneously adsorbing and removing mercury ions and a preparation method thereof, belonging to the technical field of industrial exhaust gas purification, wastewater purification and treatment and resource utilization. The preparation method of the composite nanofiltration membrane, comprising following steps: adding a cellulose nano fibrils colloid and a carboxylated carbon nanotubes-sodium dodecyl sulfate colloid into an MXene few layer dispersion solution to obtain a mixed dispersion solution, filtering the mixed dispersion solution in vacuum to a surface of a nanofiltration membrane, and standing and drying at room temperature to obtain a composite nanofiltration membrane.

Dependencies are inferred from the claim text.