Facile synthesis and antibacterial activity of silver nanoparticles-modified graphene oxide hybrid material: the assessment, utilization, and anti-virus potentiality

Sol–Gel Synthesis and Photocatalytic Activity of Graphene Oxide/ZnFe2O4-Based Composite Photocatalysts

“…For all samples, the peaks at 3453 and 1616 cm −1 can be ascribed to the absorbed water due to the use of KBr in the tablet pressing process (Gao et al, 2021;Li et al, 2021;Liu et al, 2022). For the sample GO, the peaks at 1731 and 1065 cm −1 can be assigned to the graphene oxide (Dat et al, 2022;Hwa et al, 2022). For ZnO, the peaks at 1113, 545, and 418 cm −1 are attributed to the characteristic peak of C-O and the Zn-O and Zn-O-Zn vibrations, respectively (Prabhu et al, 2018;Rammah et al, 2020;Wang et al, 2021b;Nadeem et al, 2021;Wang et al, 2022c;Tang et al, 2022).…”

Green synthesis of silver@graphene oxide nanocomposite for antibacterial, cytotoxicity assessment, and hydrogen peroxide electro-sensing

“…In detail, GO sheets possess numerous sharp edges, which are responsible for physically piercing the cell membrane by direct contact, leading to the leakage of intracellular components and bacterial dysfunction. 12 Additionally, GO sheets can also isolate the bacteria from the growth medium due to the wrapping and capturing effects on the bacterial membrane, gradually leading to cell death. This encapsulation function also promotes the electrostatic contact between the bacteria and AgNPs embedded in the GO flexible sheets, enhancing the antibacterial performance.…”

“…11 Hence, the association of AgNPs with the GO nanosheets not only prevents the agglomeration and promotes the uniform distribution of the material, but also further increases the antiproliferative properties of AgNPs to the harmful microorganisms thanks to the noticeable antimicrobial traits by the way of advanced oxidation process to increase the production of a number of reactive oxygen species (ROS). 12 Nevertheless, there are also contrasting opinions that other substrates instead of GO can serve as stabilizers to greatly limit the aggregation of AgNPs such as reduced graphene oxide (rGO), graphene (Gr), carbon nanotubes (CNTs), carbon dots (CDs), polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), polyethylene glycol (PEG), etc. Notwithstanding outstanding properties in combination with AgNPs, it has been reported that certain limitations adversely affect the antimicrobial efficiency and H 2 O 2 detection performance, consequently, we have excluded these substrates from this study.…”

Hamburger‐liked selenium doped‐zinc oxide decorated in graphene for assessing enhanced phenolic compound removal

“…The as-prepared selenium -zinc in the extract (mixture A) was added into the GO (5 g/L) solution synthesized using the improved Hummers' method. [8,9] The solution was heated to 200 o C in an autoclave for 120 min. The residue was then washed with distilled water, frozen, and freeze-dried to obtain the Se@ZnO/Gr (SZG).…”

“…However, the performance of the metalloiddoped ZnO is well-attenuated by aggregation. Therefore, many carbonaceous materials such as activated carbon, [6] carbon nanotube, [7,8] graphene oxide, [9] reduced graphene oxide, [10] graphene aerogel, [11] particularly, graphene, have been broadly applied thanks to the planar structure and good conductive surface to reduce the rate of agglomeration and recombination electron -hole pairs. [12] Indeed, the orange peels contain polysaccharides, polyphenols, amino acids, citric acid, and carboxylic groups, which as reducing and stabilizing agents.…”