Adsorption of ammonia on graphite oxide/aluminium polycation and graphite oxide/zirconium–aluminium polyoxycation composites

Removal of methylene blue from aqueous solution by graphene oxide

“…We have reported that GO sheets interact with Cu 2+ intensely [11]. Other studies on graphite oxide have evidenced the strong interaction of oxygen atoms with cations and positively charged surfactants [25][26][27][28][29][30]. MB molecules are positively charged in nature, so the electrostatic interaction between the GO and the MB molecules is the primary binding strength.…”

“…The oxygen atoms are highly amiable to positively charged molecules because of strong electrostatic interactions [11,[25][26][27][28][29][30]. We have reported that GO sheets interact with Cu 2+ intensely [11].…”

Folding/aggregation of graphene oxide and its application in Cu2+ removal

“…The interaction of Cu 2+ with GO most likely happens at the oxygen sites, because the skeleton carbon has much lower affinity to metal ions than oxygen atoms do [23]. Despite the ambiguity of the structure of GO [16], such interaction might not be surprising, because the absorption of cations by graphite oxide have already been reported in literature [17,[24][25][26][27][28]. For example, the strong interaction of oxygen atoms with Cu 2+ is reported by Xu et al, where the low concentration of Cu 2+ is adopted to avoid the aggregation and the absorbed Cu 2+ ions are used as the precursors of Cu 2 O nanoparticles [17].…”

Eco-Friendly Heterogeneous Photocatalysis on Biochar-Based Materials Under Solar Irradiation

“…Regarding to N-containing carbons, many reports [33][34][35][36] have demonstrated that different kinds of carbon materials such as active carbons [33], single-walled carbon nanotubes [34], mesoporous carbons [35], and graphite oxide [36] can be efficiently N-doping by ammoxidation at low temperatures. The ammoxidation of different biomass's wastes such as plum stones has been very well studied by Hofmann [37,38] who showed that plum stones are degassed in the temperature range employed in this work and therefore, the activation process to create a nanoporous framework is possible.…”