Preparation and performance of Fe3O4@hydrophilic graphene composites with excellent Photo-Fenton activity for photocatalysis

Graphene-Based Photo-Fenton Catalysts for Pollutant Control

“…Multifarious iron oxides with nanostructures have attracted considerable attention because of their natural abundance, environmental friendliness, and efficient production of iron complex and •OH irradiated by UV light [31]. So far, ferric oxide (Fe 2 O 3 ) [31,32], ferriferous oxide (Fe 3 O 4 ) [33,34], and iron oxyhydroxide (FeOOH) [35] display peculiar properties and compelling catalytic ability with the aid of graphene in photo-Fenton reactions.…”

“…Bio-friendly Fe 3 O 4 nanoparticles are promising photocatalysts because of their unique magnetic, electronic, and catalytic properties. The coexistence of Fe 2+ and Fe 3+ in the octahedral structure endows Fe 3 O 4 with the enhanced ability of iron ion cycle [33]. The inherent magnetic property allows Fig.…”

Recent Progress of Photocatalytic Fenton-Like Process for Environmental Remediation

“…In the field of environmental remediation, for instance, graphene is usually employed as a good support for loading nanomaterials, such as TiO 2 , ZnO, Fe 2 O 3 , CdS, Co 3 O 4 , and CdSe, etc. (Xiang et al, 2012;Guo et al, 2013) With the assistance of graphene, these nanocomposites can be uniformly dispersed onto graphene nanosheets and suppress aggregation, thus enhancing the catalytic efficiency because of excellent specific area and electrical conductivity (Wang et al, 2016). In the broad sense of Fenton process, two-dimensional graphene nanosheets and three-dimensional graphene hydrogel or aerogel have been deeply investigated.…”

“…In 2016, Wang et al (2016) prepared Fe 3 O 4 @HG with hydrophilic graphene (HG) and Fe 3 O 4 , which presented high removal efficiency of methyl orange (MO), owing to the rapid transference of photo-generated electrons on the surface of HG to promote the conversion efficiency of Fe 3+ /Fe 2+ . Further, Liu et al (2017a) developed α-Fe 2 O 3 loaded graphene oxide (GO) nanosheets through a facile hydrolysis process, which showed good Fenton-degradation efficiency for MB as well as rhodamine B, Orange II and Orange G, phenol, 2nitrophenol and 17-estradiol (E2).…”

Photocatalytic upgrading α-Fe2O3 nanoparticles by incorporating MoS2/rGO nanosheets

“…Because of the very high surface area and excellent electron mobility, cocatalysts based on graphene, a single layer of graphite, have proven to be an excellent candidate to strengthen the photocatalytic activity of metal oxides. However, the photocatalysts based on metal oxide-graphene still need to be further strengthened for practical applications [12][13][14][15].…”