Design of GO–Ag-functionalized Fe₃O₄@CS composite for magnetic adsorption of rhodamine B

Abstract

A novel magnetic composite modified with chitosan, graphene oxide and Ag nanoparticles, was successfully prepared as an efficient adsorbent for detection of rhodamine B combining with fluorescence technique.

Tuning the Interlayer Distance of Graphene Oxide as a Function of the Oxidation Degree for o‐Toluidine Removal

“…Therefore, the presence of these moieties guarantees the GO utilization in membranes and in the removal of nonbiodegradable dyes, recalcitrant and emerging pollutants (such as methylene green, [16] rhodamine B, [17] tetracycline [18] and bisphenol A [4,19] ) and heavy metals (e.g., Cd 2+ , Cu 2+ or Pb 2+ [20][21][22] ). Actually, the high number of oxygen functionalities provides a low point-of-zero charge (pzc) and, at pH above 7, a strong negative surface charge for GO, activating the electrostatic interactions with the positively charged adsorbates.…”

On-line separation/analysis of Rhodamine B dye based on a solid-phase extraction high performance liquid chromatography self-designed device

“…Among them, SPE is the better choice because it has the advantages of less organic reagents, faster speed, and lower cost. 11,12 …”