▎ 摘　　要

NOVELTY - Method for preparing a complex film by controlling surface of a microporous ceramic substrate, involves (a) preparing modified solution, (b) cleaning and modifying surface of the microporous ceramic substrate and (c) compounding the molybdenum disulfide or graphene oxide film on the surface-modified ceramic substrate. USE - The method is useful for preparing a complex film by controlling surface of a microporous ceramic substrate which is used for treating papermaking wastewater containing ions chosen from chloride ion (Cl-), sulfate ion (SO42-), sodium ion (Na+), calcium ion (Ca2+), magnesium ion (Mg2+) and ferric ion (Fe3+) (all claimed). ADVANTAGE - The method prepares complex film simply and cost-effectively with good interception effect on various ions and chemical oxygen demand in papermaking wastewater. The complex film has good stability, and enables to treat papermaking wastewater cost-effectively in an environment-friendly manner.