Details

Autor(en) / Beteiligte

• Gupta, Girish
• Kaur, Amandeep
• Sinha, A.S.K.
• Kansal, Sushil Kumar

Titel

Photocatalytic degradation of levofloxacin in aqueous phase using Ag/AgBr/BiOBr microplates under visible light

Ist Teil von

• Materials research bulletin, 2017-04, Vol.88, p.148-155

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •A novel photocatalyst Ag/AgBr/BiOBr microplates have been synthesized by precipitation method.•The obtained band gap for Ag/AgBr/BiOBr microplates was to be 2.33eV which is significant in enhancing the visible light induced photocatalysis.•Degradation of a pharmaceutical drug viz. levofloxacin was obtained in a shorter duration. Ag/AgBr/BiOBr microplates have been synthesized by precipitation method. The phase, structure, morphology and optical properties were explored by the XRD, XPS, FT-IR, FESEM, DRS and PL techniques. The band gap for Ag/AgBr/BiOBr microplates has been found to be 2.33eV which is significant in enhancing the visible light induced photocatalysis. The synthesized catalyst was consisted of tetragonal phase of BiOBr with diffraction peaks of Ag/AgBr. About 74% of levofloxacin (10mg/L, pH 8) was degraded with Ag/AgBr/BiOBr (1g/L) under 90min of irradiation. The photocatalytic degradation of levofloxacin was found to be fit with pseudo first order kinetics. The results revealed that modification of BiOBr with Ag/AgBr leads to an increase in the photocatalytic activity under visible light which may be ascribed to less e−-h+ recombination.