Reported band gap energies of metallic silica nanohybrid incorporated cellulose acetate mat.

Nanofiber mat	Band gap energy (eV)
50% w/w Ag-Si-CA-mat	2.88
50% w/w Ag-Si-CA-mat	2.89
50% w/w Co-Si-CA-mat	2.92
50% w/w Ag-Si + Cu-Si + Co-Si-CA-mat	2.84