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Photocatalytic reduction of Cr(VI) in aqueous solutions by UV irradiation with the presence of titanium dioxide.
Water Res. 2001 Jan; 35(1):135-42.WR

Abstract

The reduction of Cr(VI) in aqueous solution by UV/TiO2 reduction process was studied under various solution pH values, TiO2 dosages, light intensities, dissolved oxygen levels and other operating conditions. The reduction rates of Cr(VI) by photocatalytic-induced elections were significantly higher for acidic solutions than those for alkaline solutions. Increasing the light intensity would drastically increase the reduction rate of Cr(VI), but was ultimately influenced by the amount of TiO2 present in solutions. The presence of dissolved oxygen had minimum effect on the reduction of Cr(VI) by UV/TiO2 process in acidic solutions. The presence of ethanol might act as scavenger for holes and promoted the photocatalytic reduction of Cr(VI) by electrons. The Cr(VI) adsorbed on the surface of TiO2 particles was observed to be photoreduced to Cr(III) almost completely.

Authors+Show Affiliations

Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China. ku@mail.ntust.edu.twNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11257867

Citation

Ku, Y, and I L. Jung. "Photocatalytic Reduction of Cr(VI) in Aqueous Solutions By UV Irradiation With the Presence of Titanium Dioxide." Water Research, vol. 35, no. 1, 2001, pp. 135-42.
Ku Y, Jung IL. Photocatalytic reduction of Cr(VI) in aqueous solutions by UV irradiation with the presence of titanium dioxide. Water Res. 2001;35(1):135-42.
Ku, Y., & Jung, I. L. (2001). Photocatalytic reduction of Cr(VI) in aqueous solutions by UV irradiation with the presence of titanium dioxide. Water Research, 35(1), 135-42.
Ku Y, Jung IL. Photocatalytic Reduction of Cr(VI) in Aqueous Solutions By UV Irradiation With the Presence of Titanium Dioxide. Water Res. 2001;35(1):135-42. PubMed PMID: 11257867.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photocatalytic reduction of Cr(VI) in aqueous solutions by UV irradiation with the presence of titanium dioxide. AU - Ku,Y, AU - Jung,I L, PY - 2001/3/22/pubmed PY - 2001/4/17/medline PY - 2001/3/22/entrez SP - 135 EP - 42 JF - Water research JO - Water Res VL - 35 IS - 1 N2 - The reduction of Cr(VI) in aqueous solution by UV/TiO2 reduction process was studied under various solution pH values, TiO2 dosages, light intensities, dissolved oxygen levels and other operating conditions. The reduction rates of Cr(VI) by photocatalytic-induced elections were significantly higher for acidic solutions than those for alkaline solutions. Increasing the light intensity would drastically increase the reduction rate of Cr(VI), but was ultimately influenced by the amount of TiO2 present in solutions. The presence of dissolved oxygen had minimum effect on the reduction of Cr(VI) by UV/TiO2 process in acidic solutions. The presence of ethanol might act as scavenger for holes and promoted the photocatalytic reduction of Cr(VI) by electrons. The Cr(VI) adsorbed on the surface of TiO2 particles was observed to be photoreduced to Cr(III) almost completely. SN - 0043-1354 UR - https://www.unboundmedicine.com/medline/citation/11257867/Photocatalytic_reduction_of_Cr_VI__in_aqueous_solutions_by_UV_irradiation_with_the_presence_of_titanium_dioxide_ L2 - https://www.lens.org/lens/search/patent/list?q=citation_id:11257867 DB - PRIME DP - Unbound Medicine ER -