What Are Some Common Hydrophilic Additives Used in Catalysis?
Several substances act as hydrophilic additives in catalytic systems:
Polymers: Polyethylene glycol (PEG) and polyvinyl alcohol (PVA) are commonly used to enhance hydrophilicity. Surfactants: Compounds like sodium dodecyl sulfate (SDS) can improve the dispersion of catalysts in aqueous solutions. Functional Groups: Introducing functional groups such as -OH or -COOH on the catalyst surface can significantly enhance its hydrophilicity.