Strategically designed porous polysilicate acid/graphene composites with wide pore size for methylene blue removal

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

“…Reduced graphene oxide [11] 107.2 Polysilicate acid/graphene composites [11] 180.0 MOF/graphite oxide hybrid [25] 183.49 Mesoporous Starbon1 (A300) [61] 186 Commercially available activated carbon [61] 42 Poly(N-vinyl 2-pyrrolidone/itaconic acid) hydrogels [62] 47.7…”

“…Despite the excellent prospects, G-gel still lacks superior chemical activity due to the deficiency of functional sites, which is not beneficial for its versatile application, typically the water purification [6][7][8][9][10][11]. It has been reported that the crosslinking of polymer with graphene produced functionalized G-gel, which is superior for water purification, such as poly(vinyl alcohol)/G-gel and poly(dopamine)/G-gel [12][13][14][15][16].…”

Synthesis of Highly Reduced Graphene Oxide for Supercapacitor

“…The Raman spectra of HRGO present broadened G band at 1572 cm −1 because of the formation of a conjugated system, in contrast to the G band (1565 cm −1 ) of RGO (Figure 2 substantially, indicating the decrease in size of the in-plane sp 2 domains, possibly due to edges, defects, and disordered carbons [17]. Another intense peak is at ∼2672 cm −1 , called the 2D band.…”

Functionalized reduced graphene oxide (fRGO) for removal of fulvic acid contaminant

“…35 A porous polysilicate acid/graphene composite was used to remove MB from the solution via chemical adsorption. 36 A magnetic carbonate hydroxyapatite/graphene oxide (M-CHAP/GO) composite was used as a nice adsorbent to satisfactorily remove both lead (Pb) and MB. 37 Aqueous graphene oxide (GO) removed 95% of the initial concentration of MB in a spontaneous manner.…”