Sensitized Photoreduction of Nitrate in Homogeneous and Micellar Solutions

Arthur J. Frank; Michael Grätzel

doi:10.1021/ic00140a047

Sensitized Photoreduction of Nitrate in Homogeneous and Micellar Solutions

Arthur J. Frank
, Michael Grätzel

Chemistry and Nanoscience

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

26 Scopus Citations

Abstract

Two organic sensitizers (S), N-methylphenothiazine and N,N,N′,N′-tetramethylbenzidine, were found to reduce nitrate ions after excitation to the triplet state. The photoreduction is irreversible and follows the sequence [formula omitted] For every triplet state produced, two donor molecules are oxidized and one nitrate ion is reduced to nitrite. The reactions were examined in homogeneous (water-ethanol) and micellar solutions. Rate constants for the individual processes were determined by a laser flash photolysis technique, and a detailed account of the energetics of this light energy conversion and storage system is given.

Original language	American English
Pages (from-to)	3834-3837
Number of pages	4
Journal	Inorganic Chemistry
Volume	21
Issue number	10
DOIs	https://doi.org/10.1021/ic00140a047 https://doi.org/10.1021/ic00140a047
State	Published - 1982

NLR Publication Number

ACNR/JA-233-4585

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title = "Sensitized Photoreduction of Nitrate in Homogeneous and Micellar Solutions",

abstract = "Two organic sensitizers (S), N-methylphenothiazine and N,N,N′,N′-tetramethylbenzidine, were found to reduce nitrate ions after excitation to the triplet state. The photoreduction is irreversible and follows the sequence [formula omitted] For every triplet state produced, two donor molecules are oxidized and one nitrate ion is reduced to nitrite. The reactions were examined in homogeneous (water-ethanol) and micellar solutions. Rate constants for the individual processes were determined by a laser flash photolysis technique, and a detailed account of the energetics of this light energy conversion and storage system is given.",

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year = "1982",

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pages = "3834--3837",

journal = "Inorganic Chemistry",

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T1 - Sensitized Photoreduction of Nitrate in Homogeneous and Micellar Solutions

AU - Frank, Arthur J.

AU - Grätzel, Michael

PY - 1982

Y1 - 1982

N2 - Two organic sensitizers (S), N-methylphenothiazine and N,N,N′,N′-tetramethylbenzidine, were found to reduce nitrate ions after excitation to the triplet state. The photoreduction is irreversible and follows the sequence [formula omitted] For every triplet state produced, two donor molecules are oxidized and one nitrate ion is reduced to nitrite. The reactions were examined in homogeneous (water-ethanol) and micellar solutions. Rate constants for the individual processes were determined by a laser flash photolysis technique, and a detailed account of the energetics of this light energy conversion and storage system is given.

AB - Two organic sensitizers (S), N-methylphenothiazine and N,N,N′,N′-tetramethylbenzidine, were found to reduce nitrate ions after excitation to the triplet state. The photoreduction is irreversible and follows the sequence [formula omitted] For every triplet state produced, two donor molecules are oxidized and one nitrate ion is reduced to nitrite. The reactions were examined in homogeneous (water-ethanol) and micellar solutions. Rate constants for the individual processes were determined by a laser flash photolysis technique, and a detailed account of the energetics of this light energy conversion and storage system is given.

UR - https://www.scopus.com/pages/publications/0001486496

U2 - 10.1021/ic00140a047

DO - 10.1021/ic00140a047

M3 - Article

AN - SCOPUS:0001486496

SN - 0020-1669

VL - 21

SP - 3834

EP - 3837

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 10

ER -

Sensitized Photoreduction of Nitrate in Homogeneous and Micellar Solutions

Abstract

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