Photocatalytic oxidation mechanism of As(III) on TiO2: Unique role of As(III) as a charge recombinant species

Environmental Science and Technology

Volumn 44, Issue 23, 2010, Pages 9099-9104

  Choi, Wonyong ^a   Yeo, Jiman ^a   Ryu, Jungho ^b   Tachikawa, Takashi ^c   Majima, Tetsuro ^c  

^a Pohang University of Science and Technology (POSTECH)   (South Korea)

^b Korea Electric Power Research Institute (KEPRI)   (South Korea)

^c OSAKA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

AQUATIC ENVIRONMENTS; CHARGE RECOMBINATIONS; CONTAMINATED WATER; EXPERIMENTAL EVIDENCE; HOLE SCAVENGER; HYDROPEROXYL RADICAL; KEY ISSUES; OH RADICAL; PHOTOCATALYTIC OXIDATIONS; PHOTOGENERATION; PRETREATMENT METHODS; RECOMBINANT SPECIES; REDUCING RADICALS; SUPEROXIDES; TIME-RESOLVED TRANSIENT ABSORPTION SPECTROSCOPY; TIO; TRUE IDENTITY; UV PROCESS; VALENCE-BAND HOLES; VISIBLE LIGHT;

ARSENIC; FORMIC ACID; FREE RADICALS; OXIDANTS; OXIDATION; OXYGEN; WATER POLLUTION;

ABSORPTION SPECTROSCOPY;

4 CHLOROPHENOL; ARSENIC TRIOXIDE; FORMIC ACID; OXIDIZING AGENT; SCAVENGER; SUPEROXIDE; TITANIUM DIOXIDE;

AQUATIC ENVIRONMENT; ARSENATE; CHEMICAL POLLUTANT; HYDROXYL RADICAL; OXIDATION; PHOTOCHEMISTRY; RECOMBINATION; TOXICITY;

ABSORPTION SPECTROSCOPY; ARTICLE; CHEMICAL REACTION KINETICS; DIFFUSE REFLECTANCE SPECTROSCOPY; OXIDATION KINETICS; PHOTOCATALYSIS; PHOTOCATALYTIC OXIDATION MECHANISM; PHOTOLYSIS; TIME RESOLVED TRANSIENT ABSORPTION SPECTROSCOPY; ULTRAVIOLET RADIATION; WATER CONTAMINATION;

ARSENIC; ARSENITES; CATALYSIS; FORMIC ACIDS; HYDROXYL RADICAL; KINETICS; LIGHT; METHANOL; OXIDANTS, PHOTOCHEMICAL; OXIDATION-REDUCTION; PHOTOCHEMICAL PROCESSES; SUPEROXIDES; TITANIUM; WATER POLLUTANTS, CHEMICAL;

EID: 78650277081     PISSN: 0013936X     EISSN: 15205851     Source Type: Journal    
DOI: 10.1021/es102507u     Document Type: Article

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