Research Article

Structured Polyvinyl Alcohol/Zeolite/Carbon Composites Prepared Using Supercritical Fluid Extraction Techniques as Adsorbent for Bioethanol Dehydration

Figure 1

FTIR spectra of PVA and composite: a (PVA/Zeo/AC 1 : 1 : 1); b (PVA/Zeo/AC 1 : 1 : 0.75); c (PVA/Zeo/AC 1 : 1 : 0.5); d (PVA/Zeo/AC 1 : 1 : 0.25); e (PVA/Zeo/AC 1 : 1 : 0).