Retraction for ‘A rapid and novel method for the synthesis of 5-substituted 1H-tetrazole catalyzed by exceptional reusable monodisperse Pt NPs@AC under the microwave irradiation’ by Esma Erken et al., RSC Adv., 2015, 5, 68558–68564, DOI: 10.1039/C5RA11426H.