title: Enhanced phenol bioavailability by means of photocatalysis.
abstract: Phenol was investigated for the ability of TiO2 photocatalysis to increase its bioavailability as an electron donor for denitrification. The rate of nitrate removal by denitrification was increased by up to 2.6-fold by exposing phenol to photocatalysis for 30 min, although the rate decreased with increasing photocatalysis. The increased denitrification rate appeared to be associated with the photocatalytic production of carboxylic acids, but the slow down correlated to the production of catechol and hydroquinone.
authors.affiliation: Department of Environmental Engineering, College of Life and Environmental Science, Shanghai Normal University, Shanghai 200234, People's Republic of China.
authors.forename: Jiewei
authors.initials: J
authors.lastname: Wang
authors.forename: Yongming
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ning
authors.initials: N
authors.lastname: Yan
authors.forename: Jiwei
authors.initials: J
authors.lastname: Chen
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Rittmann
mesh_terms: D019342:Acetic Acid / Q000032:analysis; D001673:Biodegradation, Environmental / Q000528:radiation effects; D001682:Biological Availability; D057919:Biological Oxygen Demand Analysis; D002384:Catalysis / Q000528:radiation effects; D002396:Catechols / Q000032:analysis; D058440:Denitrification; D006873:Hydroquinones / Q000032:analysis; D008027:Light; D009566:Nitrates / Q000032:analysis; D019800:Phenol / Q000378:metabolism*; D055668:Photochemical Processes / Q000528:radiation effects*; D013997:Time Factors; D014025:Titanium / Q000494:pharmacology
chemical_list: D002396:Catechols; D006873:Hydroquinones; D009566:Nitrates; C009495:titanium dioxide; D019800:Phenol; D014025:Titanium; C034221:catechol; D019342:Acetic Acid; C031927:hydroquinone