Data for: Activation of bisulfite by LaFeO3 loaded on red mud for degradation of organic dye

In this study, red mud was used as a support for LaFeO3 to prepare a synergistic catalyst (LaFeO3-RM) via ultrasonic-assisted sol-gel method for the enhanced removal of methylene blue (MB) assisted with bisulfite (BS) in an aqueous solution. The Characterization of SEM and BET indicated that comparing with the non-porous structure of bulk LaFeO3, LaFeO3-RM exhibited high surface area and obvious porous structure with a higher pore volume (i.e. 10 times). XRD, XPS and FTIR revealed that in addition to dispersing LaFeO3 particles, the support of porous RM also increased Fe oxidation activity, oxygen-containing functional groups and chemically adsorbed oxygen (from 44.3% to 90.3%) of LaFeO3-RM which enhanced the catalytic performance in structure and chemical composition. MB was removed through the synergistic effect of adsorption and catalysis with MB molecule was first absorbed on the surface and then degraded. The pseudo-first-order kinetic constant of LaFeO3-RM was 6 times than that of...