Comparison of sorption of electrochemically generated V(IV) and V(V) onto selective sorbent

Content Provider	Semantic Scholar
Author	Ďuriöová, Jana Jelínek, Luděk Černouöek, T.
Copyright Year	2008
Abstract	Reduction of V(V) to V(IV) was performed at carbon felt cathode at a constant potential of - 1500 mV v s. Ag/AgCl. Adsorption of vanadium species onto the sorbent Pur olite D 4123 was investigated in the pH range 2.5 t o 5. V(V) was efficiently adsorbed throughout pH range studied, whereas V(IV) was barely adsorbed at pHs of 2.5 to 3.5 and it wa s re-oxidized to V(V) at higher pHs. In column experiments, V(V) was strongly adsorbed . V(IV) broke through the column readily and reached the inlet concentration within 60 BV. Desorption was carried out with combination of 1 M HCl and 1M NaOH, consequently, and the total vanadium recovery was about 100 %.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://iel.vscht.cz/articles/1803-4039-01-0007.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article