A zirconium-based metal–organic framework (DUT-69) was fabricated via a hydrothermalsynthesis for U(VI) removal in aqueous solutions. Experimental results showed that the maximum adsorption capacity for U(VI) was 362.32mg·g−1 at 303K, pH = 6 and initial U(VI) concentration of 80mg L−1. The adsorption process fit well with the pseudo-second-order kinetic and Langmuir models. Various characterizations indicated that complexation interactions was the central adsorption mechanism and electrostatic was the secondary. The carboxyl, Zr–O, and C–...