Correction: Removal of fluoride ions using a polypyrrole magnetic nanocomposite influenced by a rotating magnetic field.

[This corrects the article DOI: 10.1039/C9RA07379E.]. This journal is © The Royal Society of Chemistry.

The authors regret that Table 1 was displayed incorrectly in the original article, as the values for the Temkin constants were not correctly aligned with their respective columns. The corrected version of Table 1 is shown below.

Freundlich and Temkin constants for fluoride ions adsorption

Freundlich isotherm			Temkin isotherm
K L (mg g−1)	n	R 2	K T (L mg−1)	b T (kJ mol−1)	R 2
1.11740	1.34171	0.98381	1.0153	22.5	0.97579

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.