Details

Autor(en) / Beteiligte

• Arora, Komal
• Sekar Karthikeyan
• Bilal Ahmad Shiekh
• Kaur, Manvir
• Singh, Harjinder
• Gopala Ram Bhadu
• Tejwant Singh Kang

Titel

In situ preparation of a nanocomposite comprising graphene and α-Fe2O3 nanospindles for the photo-degradation of antibiotics under visible light

Ist Teil von

• New journal of chemistry, 2020-09, Vol.44 (36), p.15567-15573

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Few layer thick graphene sheets are exfoliated in an aqueous medium by using iron containing imidazolium based ionic liquid (IL; [C16mim][FeCl4]) in high yield exhibiting excellent dispersion stability. Subsequently, IL that stabilizes the graphene sheets is exploited for the in situ preparation of α-Fe2O3 nanospindle (NS) decorated graphene sheets, for the first time. The prepared α-Fe2O3@graphene nanocomposite (NC) shows enhanced photocatalytic activity for the degradation of an antibiotic, sulfamethoxazole, under visible light. The enhanced photocatalytic activity of the NCs as compared to bare α-Fe2O3 NSs is probed using computational simulations, where graphene is observed to sensitize α-Fe2O3 NSs in the photoexcitation process. This increases the electron charge density in the conduction band of α-Fe2O3 NSs, resulting in enhanced photocatalytic efficiency.