Facilitated transport of Pd(II) through a supported liquid membrane (SLM) containing N,N,N′,N′-tetra-(2-ethylhexyl) thiodiglycolamide T(2EH)TDGA: A novel carrier

► Pd(II) was quantitatively transported (∼99.9%) within 2 h from 3.0 M HNO3 medium using 0.05 M T(2EH)TDGA. ► Pd(II) uptake was very selective over other metal ions present in high level waste solution. ► The membrane was found to be stable for several consecutive cycles. ► Palladium transport was found to be diffusion controlled, the diffusion co-efficient value determined to be 3.56 × 10−5 cm2/s.