Photocatalyzed mineralization of kraft black liquor on ZnO/Fe 2O 3 coupled semiconductor

Villasenor, J.; Duran, N.; Mansilla H.D.

Keywords: evolution, chemistry, catalysis, zinc, photooxidation, semiconductors, photochemistry, ion, management, matter, photocatalysis, kraft, liquid, humans, human, wood, oxide, mineralization, instrumentation, dioxide, paper, methodology, carbon, lignin, molecular, article, catalyst, semiconductor, waste, organic, cooking, ferric, controlled, study, compounds, chemical, Reaction, Support,, Non-U.S., Gov't

Abstract

Photocatalysis using ZnO-Fe 2O 3 coupled catalyst removed partially the organic matter dissolved in kraft black liquor obtained from pinus wood cooking. The photo-assisted oxidation using different ZnO/Fe 2O 3 ratios was studied following the CO 2 evolution during the course of the reaction. A synergy of the composite improves the mineralization observed. The optimal ZnO to Fe 2O 3 ratio varied from 0.5 to 0.7 which allowed the highest mineralization rates.

Más información

Título de la Revista: ENVIRONMENTAL TECHNOLOGY
Volumen: 23
Número: 8
Editorial: TAYLOR & FRANCIS LTD
Fecha de publicación: 2002
Página de inicio: 955
Página final: 959
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-0036024719&partnerID=q2rCbXpz