1. (a) XRD patterns and (b) magnetic hysteresis loops of the zeolite and CFZ, and (c) size distribution of CoFe₂O₄ nanoparticles

2. SEM images of (a) zeolite and (b-c) CFZ, as well as EDS-mappings of (d) O, (e) Si, (f) Al, (g) Fe, and (h) Co

3. (a) TEM image and (b) elemental line scanning spectra of CFZ, as well as XPS spectra of (c) survey, (d) Fe2p, (e) Co2p, and (f) O1s of CFZ Colorful figures are available on website

4. (a) N₂ adsorption-desorption isotherms and (b) pore size distributions of the prepared zeolite and CFZ, (c) removal of MO in different systems (0.2 g/L CFZ, [PMS] = 0.6 mmol/L, [MO] = 0.2 g/L, pH 8, T = 25 ℃), and effects of (d) catalyst dosage, (e) initial solution pH and (f) PMS concentration on MO removal (0.2 g/L CFZ, [PMS] = 1 mmol/L, [MO] = 50 mg/L, pH 8, T = 25 ℃) Colorful figures are available on website

5. Effects of (a) coexisting anions on MO removal, (b) cyclic experiments and (c) ROS quenching tests (0.2 g/L CFZ, under the conditions of [PMS] = 1 mmol/L, [MO] = [coexisting anions] = 50 mg/L, pH 8, T = 25 ℃, [scavengers] = 100 mmol/L) Colorful figures are available on website

6. Schematic of ROS generation and MO degradationThe black arrows show the generation route of ROS and the balls with colors correspond to different reactants, intermediates or products Colorful figures are available on website

S1. Degradation performance on different concentrations of MO (0.2 g/L CFZ, [PMS]=1 mmol/L, pH 8, T=25 ℃)

S2. Effect of high-concentration coexisting anions ([MO]=50 mg/L, [SO₄^2-]=[CO₃^2-]=[Cl^-]=[H₂PO₄^2-]=1000 mg/L, 0.2 g/L CFZ, [PMS]=1 mmol/L, pH 7, T=25 ℃)

S3. XRD patterns of the fresh CFZ and the used CFZ

S4. SEM image of the CFZ cycled for 5 times

S5. Effect of initial solution pH on MB removal