Mxene nanosheet ink for palladium recovery and its manufacturing method, palladium recovery method using mxene nanosheet ink, and electrochemical catalyst using recovered palladium and its manufacturing method

A MXene nanosheet ink for palladium recovery, which is a solution in which MXene nanosheets of a chemical formula below are dispersed,

• wherein a zeta potential (ζ) of the MXene nanosheets is 0 mV or higher in an acidic solution with a pH of 7 or below.
• (where M is a transition metal, X is one of carbon or nitrogen or a combination thereof, T is a surface functional group and is at least one of —O, —F, —OH, or —Cl, and n is an integer from 1 to 4).