A luminescent-magnetic nanocomposite for Hg(II) recognition and extraction: Preparation, characterization, sensing and removal performance

A core-shell structured nanocomposite for Hg(II) sensing was reported, using superparamagnetic ferroferric oxide and silica molecular sieve MCM-41 as the inner core and the outer shell, respectively. High selectivity, linear working curve and good recycling performance were obtained.