Graphene oxide–TiO₂ composite as a novel adsorbent for the preconcentration of heavy metals and rare earth elements in environmental samples followed by on-line inductively coupled plasma optical emission spectrometry detection

Abstract

GO–TiO2 composite as a novel adsorbent for the preconcentration of heavy metals and rare earth elements in environmental samples.

The role of graphene‐based sorbents in modern sample preparation techniques

“…The application of the method in the analysis of tap water and kiwi fruit samples showed low LOD, wide linear range and reproducibility [61]. For preconcentration and separation of heavy metals and rare earth elements in environmental samples, Zhang et al [62] used a GO-TiO 2 composite as a novel adsorbent with high adsorption capacities for the target ions (Cu, Pb, La, Ce, Eu, Dy, and Yb). The material was packed in a microcolumn and an on-line SPE method coupled with inductively coupled plasma optical emission spectrometry was successfully developed.…”

Preparation, characterization and application of Saussurea tridactyla Sch-Bip as green adsorbents for preconcentration of rare earth elements in environmental water samples

“…It is well-known that SPE materials decide the sensitivity and selectivity of the SPE-based method. And a great deal of new SPE adsorbents have been explored for the preconcentration of REEs, including chelating resin [19], 2,6-diacetylpyridine functionalized Amberlite XAD-4 [20], graphene oxide-TiO 2 composite [21], acetylacetone-modified silica gel [22], oxidized multiwalled carbon nanotubes [23], polystyrene grafted with diethylene-triaminetetraacetic groups [24] etc. Besides, biomaterials have attained special interest due to their attractive features, such as easy-to-get, low cost, high efficiency, mild operation condition and ecologically-safe [25][26][27].…”

Equilibrium and kinetic study of novel methyltrimethoxysilane magnetic titanium dioxide nanocomposite for methylene blue adsorption from aqueous media

“…ginger waste, millet carbon, graphene/graphene oxide, xanthan gum, polymeric materials, titanium/silicon/aluminium oxide, carbon nanotubes/TiO 2 ‐NH 2 and silica‐based materials . Titanium dioxide (TiO 2 ) nanoparticles have also been successfully used as an adsorbent for the enhanced removal of dye products . TiO 2 as an adsorbent shows remarkable features, i.e.…”