Seminar “Immobilization of layered nanomaterials on the glass plates as highly efficient catalysts for visible light photocatalysis”
On 30 November at 14:00 p.m. (Moscow time)
We fabricated ZnFe-layered double hydroxides with sulfate-intercalated anion (ZnFe-SO4-LDH) modified with graphene oxide (GO) by chemical co-precipitation method. They were then coated on the glass substrates (denoted as ZnFe-LDH/GO/GS). The XRD, SEM, EDX,
The prepared photocatalyst showed photocatalytic performance of elimination PhP, the degraded rate of pollutant could reach 60.01% in 150 min of photocatalysis process under the optimum conditions: initial PhP concentration of 15 mg/L, pH of 8 (natural pH), and 3 photocatalysts plates. The addition of 1 mmol/L of potassium persulfate caused the degradation efficiency of 93.95% within the 150 min of photocatalytic process. The transformation of five intermediates of PhP produced in the photocatalytic degradation process was identified by the GC—MS technique. 60% COD removal efficiency was achieved after 300 min of photocatalytic reaction confirming mineralization of the PhP solution. Finally, a reusability test of ZnFe-LDH/GO/GS photocatalyst in the PhP degradation revealed that almost 12% drop occurred after five successive cycles.
Participants: students, postgraduates and scientific-pedagogical workers of the faculty of Sciences of RUDN and other Universities.