Simultaneous removal of arsenate and arsenite from aqueous solutions by graphene oxide-zirconium (GO-Zr) nanocomposite

Effect of the degree of oxidation of graphene oxide on As(III) adsorption

“…Currently, there are different techniques designed to removed arsenic, including adsorption, which is widely used due to its simplicity of operation and scalability [4]. A wide range of adsorbent material have been used such as iron oxides, activated alumina [5], activated carbon [6] and reduced graphene oxide (rGO) with nanoparticles such as magnetite, ceria, zirconium and zirconium oxide and Fe3O4/MnO2 [7][8][9][10][11][12][13]. These materials have shown maximum adsorption capacities of 14.04 up to 212.33 mg/g for As(III) species (H3AsO3, H2AsO3 − , HAsO3 2− and AsO3 3− ), which are the most dangerous species of As.…”

Adsorptive filtration of As(III) from drinking water by CuFe2O4 particles embedded in carbon nanotube membranes

“…Recently, functional particles have been studied for effective As removal from aqueous solutions. Pourbeyram and co‐workers found that graphene oxide modified with zirconium (Zr) was capable of simultaneously eliminating arsenate [As(V)] and As(III) from water . Ren et al fabricated iron (Fe)–Zr binary oxide for the removals of As(V) and As(III) from water .…”

“…Pourbeyram and co-workers found that graphene oxide modified with zirconium (Zr) was capable of simultaneously eliminating arsenate [As(V)] and As(III) from water. 12 Ren et al fabricated iron (Fe)-Zr binary oxide for the removals of As(V) and As(III) from water. 13 A copper ferrite (CuFe 2 O 4 ) adsorbent was generated from waste from the printed circuit board industry and exhibited good performance for the removal of As(III) from water.…”

Adsorption of different forms of phosphorus on modified corn bracts

“…Zirconium(χ) is a metal cation that has a strong ionic and coordinative affinity for the groups containing oxygen. The adsorbents, which were modified by Zr, have the advantages of low-leaching rate and nontoxicity (Long et al, 2011;Mallampati & Valiyaveettil, 2013;Pourbeyram, Alizadeh, & Gholizadeh, 2016;Yu, Wang, Shi, Zhu, & Yan, 2017). To date, researchers mainly focus on IP removal by the zirconium oxides/hydroxides (Huang et al, 2015;Sowmya & Meenakshi, 2014).…”