Fabrication an electrochemical sensor based on composite of Cu-TCPP nanosheets and PSS functionalized graphene for simultaneous and sensitive determination of dihydroxybenzene isomers

Construction of a 2D layered BiVO4/zinc porphyrin (ZnTCPP) S-scheme heterostructure boosting photocatalytic N2oxidation performance

“…The strong peak near 400–500 nm is the Soret band, and the several absorption peaks in the range of 500–700 nm can be attributed to the Q bands. 42 The band gap values ( E g ) of the prepared samples are estimated by using the Kubelka–Munk 43 equation shown in Fig. S5,† and the E g values of BVO and ZnTCPP are calculated to be 2.21 and 1.90 eV, respectively.…”

Simultaneous Detection of Dihydroxybenzene Isomers Using Electrochemically Reduced Graphene Oxide-Carboxylated Carbon Nanotubes/Gold Nanoparticles Nanocomposite

“…In this work, the functionalization of MWCNT with carboxylic functional groups played an essential role in the good sensitivity towards DHB, because in addition to generating excellent dispersion in solution and enabling uniform electrode layer, it facilitated the adsorption of the DHB in both the electrode surface and the great amount of active edge plans with improved electrocatalytic activity. In addition, Table 2 displays that GCE/ErGO-cMWCNT/AuNPs had a notable performance with lower LOD and more extensive linear range than other similar carbon-based materials reported in the literature, such as graphene screen-printed electrode [ 46 ], Au-Pd nanoflower/reduced graphene oxide nanocomposite [ 47 ], and Cu-porphyrin-poly(styrene sulfonate) functionalized graphene [ 48 ]. The high performance of GCE/ErGO-cMWCNT/AuNPs expressed the notable synergistic effects granted to the nanocomposite.…”

Graphene-Based Metal–Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies

“…In a very recent report, Zhang et al presented the direct synthesis of a poly(styrenesulfonate) substituted graphene (PSS-Gr) and Cu-TCPP (Cu 2 TCPP) MOF-based composites for highly sensitive and simultaneous detection of dihydroxybenzene isomers. 192 The poly(styrenesulfonate)-substituted graphene was prepared by a chemical reduction pathway involving the formation of a stable dispersion of PSS and GO in water by ultrasonication. The dispersion was then heated in an oil bath at 95 °C for 10 min, after which N 2 H 4 was added to the reaction mixture and the solution was aged for 3 h. The reaction mixture was then centrifuged to obtain PSS-Gr, which was washed with water and dried overnight at 65 °C.…”

“…In a very recent report, Zhang et al presented the direct synthesis of a poly­(styrenesulfonate) substituted graphene (PSS-Gr) and Cu-TCPP (Cu 2 TCPP) MOF-based composites for highly sensitive and simultaneous detection of dihydroxybenzene isomers . The poly­(styrenesulfonate)-substituted graphene was prepared by a chemical reduction pathway involving the formation of a stable dispersion of PSS and GO in water by ultrasonication.…”