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Chuang YH, Wu KL, Lin WC, Shi HJ. Photolysis of Chlorine Dioxide under UVA Irradiation: Radical Formation, Application in Treating Micropollutants, Formation of Disinfection Byproducts, and Toxicity under Scenarios Relevant to Potable Reuse and Drinking Water. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:2593-2604. [PMID: 35025487 DOI: 10.1021/acs.est.1c05707] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Conversion of potable reuse water utilities and drinking water utilities from a low-pressure UV/H2O2 (LPUV/H2O2) advanced oxidation process (AOP) to alternative AOPs in which oxidants can effectively absorb photons and rapidly generate radicals has attracted great interest. Herein, we propose a novel UVA/ClO2 AOP for different water treatment scenarios because of reduced photon absorption by the background matrix and high molar absorptivity for ClO2 at UVA wavelengths. While the photolysis of ClO2 produces •Cl + O2 or •ClO + O(3P) via distinct product channels, we determined the parameters needed to accurately model the loss of oxidants and the formation of byproducts and combined a kinetic model with experimental data to determine quantum yields (Φ). Modeling incorporating the optimized Φ simultaneously predicted oxidant loss and the formation of major products -HOCl, Cl-, and ClO3-. We also systematically investigated the removal of three contaminants exhibiting different radical reactivities, the formation of 35 regulated and unregulated halogenated disinfection byproducts (DBPs), DBP-associated toxicity, and N-acetylcysteine thiol reactivity in synthetic or authentic RO permeates/surface waters treated by different AOPs. The kinetic model developed in this study was used to optimize operating conditions to control undesired products and improve contaminant removal efficiency. The results indicate that UVA/ClO2 can outperform LPUV/H2O2 in terms of electrical energy per order of contaminant degradation, disinfection byproduct formation, and toxicity indices.
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Affiliation(s)
- Yi-Hsueh Chuang
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu City 30010, Taiwan
| | - Kai-Lin Wu
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu City 30010, Taiwan
| | - Wei-Chun Lin
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu City 30010, Taiwan
| | - Hong-Jia Shi
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu City 30010, Taiwan
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2
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Benjamin I. Chemical Reaction Dynamics at Liquid Interfaces: A Computational Approach. PROGRESS IN REACTION KINETICS AND MECHANISM 2019. [DOI: 10.3184/007967402103165360] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Recent advances in experimental and theoretical studies of liquid interfaces provide remarkable evidence for the unique properties of these systems. In this review we examine how these properties affect the thermodynamics and kinetics of chemical reactions which take place at the liquid/vapor interface and at the liquid/liquid interface. We demonstrate how the rapidly varying density and viscosity, the marked changes in polarity and the surface roughness manifest themselves in isomerization, electron transfer and photodissociation reactions.
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Affiliation(s)
- Ilan Benjamin
- Department of Chemistry, University of California, Santa Cruz, California 95064, USA
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3
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Gadegaard AR, Thøgersen J, Jensen SK, Nielsen JB, Jena NK, Odelius M, Jensen F, Keiding SR. Spectroscopy and picosecond dynamics of aqueous NO2. J Chem Phys 2014; 141:064310. [DOI: 10.1063/1.4892342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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4
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Patterson JD, Reid PJ. Time-Resolved Infrared Absorption Studies of the Solvent-Dependent Photochemistry of ClNO. J Phys Chem B 2012; 116:10437-43. [DOI: 10.1021/jp211697r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joshua D. Patterson
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington
98195, United States
| | - Philip J. Reid
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington
98195, United States
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Hayes SC, Wallace PM, Bolinger JC, Reid PJ. Investigating the phase-dependent photochemical reaction dynamics of chlorine dioxide using resonance Raman spectroscopy. INT REV PHYS CHEM 2010. [DOI: 10.1080/01442350210156024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Carrier SL, Preston TJ, Dutta M, Crowther AC, Crim FF. Ultrafast Observation of Isomerization and Complexation in the Photolysis of Bromoform in Solution. J Phys Chem A 2009; 114:1548-55. [DOI: 10.1021/jp908725t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stacey L. Carrier
- Department of Chemistry University of Wisconsin—Madison, Madison, Wisconsin 53706
| | - Thomas J. Preston
- Department of Chemistry University of Wisconsin—Madison, Madison, Wisconsin 53706
| | - Maitreya Dutta
- Department of Chemistry University of Wisconsin—Madison, Madison, Wisconsin 53706
| | - Andrew C. Crowther
- Department of Chemistry University of Wisconsin—Madison, Madison, Wisconsin 53706
| | - F. Fleming Crim
- Department of Chemistry University of Wisconsin—Madison, Madison, Wisconsin 53706
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Bixby TJ, Bolinger JC, Patterson JD, Reid PJ. Femtosecond pump-probe studies of actinic-wavelength dependence in aqueous chlorine dioxide photochemistry. J Chem Phys 2009; 130:154503. [PMID: 19388755 DOI: 10.1063/1.3116108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The actinic or photolysis-wavelength dependence of aqueous chlorine dioxide (OClO) photochemistry is investigated using femtosecond pump-probe spectroscopy. Following photoexcitation at 310, 335, and 410 nm the photoinduced evolution in optical density is measured from the UV to the near IR. Analysis of the optical-density evolution illustrates that the quantum yield for atomic chlorine production (Phi(Cl)) increases with actinic energy, with Phi(Cl)=0.16+/-0.02 for 410 nm excitation and increasing to 0.25+/-0.01 and 0.54+/-0.10 for 335 and 310 nm excitations, respectively. Consistent with previous studies, the production of Cl occurs through two channels, with one channel corresponding to prompt (<5 ps) Cl formation and the other corresponding to the thermal decomposition of ClOO formed by OClO photoisomerization. The partitioning between Cl production channels is dependent on actinic energy, with prompt Cl production enhanced with an increase in actinic energy. Limited evidence is found for enhanced ClO production with an increase in actinic energy. Stimulated emission and excited-state absorption features associated with OClO populating the optically prepared (2)A(2) surface decrease with an increase in actinic energy suggesting that the excited-state decay dynamics are also actinic energy dependent. The studies presented here provide detailed information on the actinic-wavelength dependence of OClO photochemistry in aqueous solution.
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Affiliation(s)
- Teresa J Bixby
- Department of Chemistry, University of Washington, P.O. Box 351700, Seattle, Washington 98195, USA
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Bixby TJ, Patterson JD, Reid PJ. Femtosecond TRIR Studies of ClNO Photochemistry in Solution: Evidence for Photoisomerization and Geminate Recombination. J Phys Chem A 2009; 113:3886-94. [DOI: 10.1021/jp8100283] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Teresa J. Bixby
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195
| | - Joshua D. Patterson
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195
| | - Philip J. Reid
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195
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Buchachenko AL. Chemistry on the border of two centuries — achievements and prospects. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1999v068n02abeh000487] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cooksey CC, Reid PJ. The Phase-dependent Photochemical Reaction Dynamics of Halooxides and Nitrosyl Halides¶. Photochem Photobiol 2007. [DOI: 10.1111/j.1751-1097.2004.tb00103.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Cooksey CC, Johnson KJ, Reid PJ. Femtosecond Pump−Probe Studies of Nitrosyl Chloride Photochemistry in Solution. J Phys Chem A 2006; 110:8613-22. [PMID: 16836421 DOI: 10.1021/jp062069k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present a femtosecond pump-probe study of the primary events of nitrosyl chloride (ClNO) photochemistry in solution. Following 266 nm photolysis, the resulting evolution in optical density is measured for ClNO dissolved in acetonitrile, chloroform, and dichloromethane. The results demonstrate that photolysis results in the production of a photoproduct that has an absorption band maximum at 295 nm in acetonitrile and 330 nm in chloroform and dichloromethane. To determine the extent of Cl production, comparative photochemical studies of methyl hypochlorite (MeOCl) and ClNO are performed. Photolysis of MeOCl in solution results in the production of the Cl:solvent charge-transfer complex; therefore, a comparison of the spectral evolution observed following MeOCl and ClNO photolysis under identical photolysis conditions is performed to determine the extent of Cl production following ClNO photolysis. We find that similar to the gas-phase photochemistry, Cl and NO formation is the dominant photochemical channel in acetonitrile. However, the photochemistry in chloroform and dichloromethane is more complex, with a second product formed in addition to Cl and NO. It is proposed that in these solvents photoisomerization also occurs, resulting in the production of ClON. The results presented here represent the first detailed examination of the solution phase photochemistry of ClNO.
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Affiliation(s)
- Catherine C Cooksey
- Box 351700, Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
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Bolinger JC, Bixby TJ, Reid PJ. Time-resolved infrared absorption studies of the solvent-dependent vibrational relaxation dynamics of chlorine dioxide. J Chem Phys 2005; 123:084503. [PMID: 16164308 DOI: 10.1063/1.2000234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report a series of time-resolved infrared absorption studies on chlorine dioxide (OClO) dissolved in H2O, D2O, and acetonitrile. Following the photoexcitation at 401 nm, the evolution in optical density for frequencies corresponding to asymmetric stretch of OClO is measured with a time resolution of 120+/-50 fs. The experimentally determined optical-density evolution is compared with theoretical models of OClO vibrational relaxation derived from collisional models as well as classical molecular-dynamics (MD) studies. The vibrational relaxation rates in D2O are reduced by a factor of 3 relative to H2O consistent with the predictions of MD. This difference reflects modification of the frequency-dependent solvent-solute coupling accompanying isotopic substitution of the solvent. Also, the geminate-recombination quantum yield for the primary photofragments resulting in the reformation of ground-state OClO is reduced in D2O relative to H2O. It is proposed that this reduction reflects enhancement of the dissociation rate accompanying vibrational excitation along the asymmetric-stretch coordinate. In contrast to H2O and D2O, the vibrational-relaxation dynamics in acetonitrile are not well described by the theoretical models. Reproduction of the optical-density evolution in acetonitrile requires significant modification of the frequency-dependent solvent-solute coupling derived from MD. It is proposed that this modification reflects vibrational-energy transfer from the asymmetric stretch of OClO to the methyl rock of acetonitrile. In total, the results presented here provide a detailed description of the solvent-dependent geminate-recombination and vibrational-relaxation dynamics of OClO in solution.
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Affiliation(s)
- Joshua C Bolinger
- Box 351700, Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
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13
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Reduced mechanism for the 366nm chlorine dioxide photodecomposition in N2-saturated aqueous solutions. J Photochem Photobiol A Chem 2005. [DOI: 10.1016/j.jphotochem.2004.09.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Elles CG, Cox MJ, Barnes GL, Crim FF. Recombination and Reaction Dynamics Following Photodissociation of CH3OCl in Solution. J Phys Chem A 2004. [DOI: 10.1021/jp046627b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christopher G. Elles
- Department of Chemistry, University of Wisconsin − Madison, Madison, Wisconsin 53706
| | - M. Jocelyn Cox
- Department of Chemistry, University of Wisconsin − Madison, Madison, Wisconsin 53706
| | - George L. Barnes
- Department of Chemistry, University of Wisconsin − Madison, Madison, Wisconsin 53706
| | - F. Fleming Crim
- Department of Chemistry, University of Wisconsin − Madison, Madison, Wisconsin 53706
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Bolinger JC, Hayes SC, Reid PJ. Time resolved infrared absorption studies of geminate recombination and vibrational relaxation in OClO photochemistry. J Chem Phys 2004; 121:4795-803. [PMID: 15332913 DOI: 10.1063/1.1778373] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Ultrafast time-resolved infrared absorption studies of aqueous chlorine dioxide (OClO) photochemistry are reported. Following photoexcitation at 401 nm, the evolution in optical density at frequencies between 1000 to 1100 cm(-1) is monitored to investigate vibrational energy deposition and relaxation along the asymmetric-stretch coordinate following the reformation of ground-state OClO via geminate recombination of the primary photofragments. The measured kinetics are compared to two proposed models for the vibrational-relaxation dynamics along the asymmetric-stretch coordinate. This comparison demonstrates that the perturbation model derived from molecular dynamics studies is capable of qualitatively reproducing the observed kinetics, where the collisional model employed in previous UV-pump, visible probe experiments demonstrates poor agreement with experiment. The ability of the perturbation model to reproduce the optical-density evolution observed in these studies demonstrates that for aqueous OClO, frequency dependence of the solvent-solute coupling is important in defining the level-dependent vibrational relaxation rates along the asymmetric-stretch coordinate. The absence of optical-density evolution corresponding to the population of higher vibrational levels (n>8) along the asymmetric-stretch coordinate suggests that following geminate recombination, energy is initially deposited into a local Cl-O stretch, with the relaxation of vibrational energy from this coordinate providing for delayed vibrational excitation of the asymmetric- and symmetric-stretch coordinates relative to geminate recombination, as previously observed.
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Affiliation(s)
- Joshua C Bolinger
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
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Cooksey CC, Reid PJ. The Phase-dependent Photochemical Reaction Dynamics of Halooxides and Nitrosyl Halides¶. Photochem Photobiol 2004. [DOI: 10.1562/0031-8655(2004)080<0386:tpprdo>2.0.co;2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Madsen D, Larsen J, Jensen SK, Keiding SR, Thøgersen J. The Primary Photodynamics of Aqueous Nitrate: Formation of Peroxynitrite. J Am Chem Soc 2003; 125:15571-6. [PMID: 14664604 DOI: 10.1021/ja030135f] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We have examined the photochemical reactions occurring after irradiation at 200 nm of the aqueous nitrate ion, NO3(-)(aq). Using femtosecond transient absorption spectroscopy over the range 194-388 nm, we have characterized the formation and subsequent relaxation of the primary photoproducts of nitrate photolysis. The dominant photoproduct is the cis-isomer of peroxynitrite, which accounts for 48% of the excited state molecules initially produced. A slightly smaller fraction, 44%, of the excited molecules return to the electronic ground state of NO3(-) and relax to the vibrational ground state in 2 ps. The remaining 8% of the molecules initially excited react via the *NO + *O2(-) or the NO- + O2 dissociation channels. Formation of NO2(-) and *NO2 is not observed, suggesting that the previous observations of these species in steady-state photolysis are caused by reactions occurring on a longer time scale.
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Affiliation(s)
- Dorte Madsen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000, Aarhus, Denmark
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18
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Cooksey CC, Reid PJ. Femtosecond Pump−Probe Studies of Dichlorine Monoxide in Solution. J Phys Chem A 2003. [DOI: 10.1021/jp030213l] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Catherine C. Cooksey
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195
| | - Philip J. Reid
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195
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Madsen D, Thomsen CL, Poulsen JA, Knak Jensen SJ, Thøgersen J, Keiding SR, Krissinel EB. Femtosecond Photolysis of HOCl(aq): Dissipation of Fragment Kinetic Energy. J Phys Chem A 2003. [DOI: 10.1021/jp026968u] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Madsen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - C. L. Thomsen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - J. Aa. Poulsen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - S. J. Knak Jensen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - J. Thøgersen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - S. R. Keiding
- Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - E. B. Krissinel
- European Bioinformatics Institute Genome Campus, Hinxton Cambridge CB10 1SD, U.K
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Wallace PM, Bolinger JC, Hayes SC, Reid PJ. On the actinic wavelength dependence of OClO photochemistry in solution. J Chem Phys 2003. [DOI: 10.1063/1.1531613] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Chorny I, Vieceli J, Benjamin I. Photodissociation and Vibrational Relaxation of OClO at Liquid Surfaces. J Phys Chem B 2002. [DOI: 10.1021/jp021796m] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilya Chorny
- Department of Chemistry, University of California, Santa Cruz, California 95064
| | - John Vieceli
- Department of Chemistry, University of California, Santa Cruz, California 95064
| | - Ilan Benjamin
- Department of Chemistry, University of California, Santa Cruz, California 95064
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Chorny I, Vieceli J, Benjamin I. Molecular dynamics study of the vibrational relaxation of OClO in bulk liquids. J Chem Phys 2002. [DOI: 10.1063/1.1471558] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Chorny I, Vieceli J, Benjamin I. Molecular dynamics study of the photodissociation of OClO in bulk liquids. J Chem Phys 2002. [DOI: 10.1063/1.1471557] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Larsen J, Madsen D, Poulsen JA, Poulsen TD, Keiding SR, Thøgersen J. The photoisomerization of aqueous ICN studied by subpicosecond transient absorption spectroscopy. J Chem Phys 2002. [DOI: 10.1063/1.1467897] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Reid PJ. Investigating the Phase-Dependent Reactivity of Chlorine Dioxide Using Resonance Raman Spectroscopy. J Phys Chem A 2002. [DOI: 10.1021/jp013491y] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Philip J. Reid
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195
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Hayes SC, Thomsen CL, Reid PJ. The production and decay kinetics of ClOO in water and freon-11: A time-resolved resonance raman study. J Chem Phys 2001. [DOI: 10.1063/1.1418733] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Thomsen CL, Madsen D, Poulsen JA, Thøgersen J, Jensen SJK, Keiding SR. Femtosecond photolysis of aqueous HOCl. J Chem Phys 2001. [DOI: 10.1063/1.1413964] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hayes SC, Cooksey CC, Wallace PM, Reid PJ. Femtosecond UV Pump/Near-IR Probe Studies of the Solvent-Dependent Excited-State Decay Dynamics of Chlorine Dioxide. J Phys Chem A 2001. [DOI: 10.1021/jp011831+] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vieceli J, Chorny I, Benjamin I. Photodissociation of ICN at the liquid/vapor interface of chloroform. J Chem Phys 2001. [DOI: 10.1063/1.1388196] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Reid PJ. Understanding the phase-dependent reactivity of chlorine dioxide using resonance Raman spectroscopy. Acc Chem Res 2001; 34:691-8. [PMID: 11560468 DOI: 10.1021/ar010064u] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Progress in understanding the phase-dependent reactivity of chlorine dioxide (OClO) is outlined. Resonance Raman intensity analysis studies of gaseous and solution-phase OClO are presented which demonstrate that the optically prepared excited state undergoes significant modification in solution. In addition, time-resolved resonance Raman studies are presented which demonstrate that geminate recombination of the primary photoproducts, resulting in the re-formation of ground-state OClO, dominates the photochemical reaction dynamics in solution. The current picture of aqueous OClO photochemistry derived from these studies is discussed, and future directions of investigation are outlined.
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Affiliation(s)
- P J Reid
- Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195, USA.
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Foster CE, Barham BP, Reid PJ. Resonance Raman intensity analysis of chlorine dioxide dissolved in chloroform: The role of nonpolar solvation. J Chem Phys 2001. [DOI: 10.1063/1.1362297] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fidder H, Tschirschwitz F, Dühr O, Nibbering ETJ. Vibrational mode-specific photochemical reaction dynamics of chlorine dioxide in solution. J Chem Phys 2001. [DOI: 10.1063/1.1357202] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Csordás V, Bubnis B, Fábián I, Gordon G. Kinetics and mechanism of catalytic decomposition and oxidation of chlorine dioxide by the hypochlorite ion. Inorg Chem 2001; 40:1833-6. [PMID: 11312739 DOI: 10.1021/ic001106y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The oxidation of ClO(2) by OCl(-)is first order with respect to both reactants in the neutral to alkaline pH range: -d[ClO(2)]/dt = 2k(OCl)[ClO(2)][OCl(-)]. The rate constant (T = 298 K, mu = 1.0 M NaClO(4)) and activation parameters are k(OCl) = 0.91 +/- 0.02 M(-1) s(-1), DeltaH = 66.5 +/- 0.9 kJ/mol, and DeltaS(++) = -22.3 +/- 2.9 J/(mol K). In alkaline solution, pH > 9, the primary products of the reaction are the chlorite and chlorate ions and consumption of the hypochlorite ion is not observed. The hypochlorite ion is consumed in increasing amounts, and the production of the chlorite ion ceases when the pH is decreased. The stoichiometry is kinetically controlled, and the reactants/products ratios are determined by the relative rates of the production and consumption of the chlorite ion in the ClO(2)/OCl(-) and HOCl/ClO(2)(-) reactions, respectively.
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Affiliation(s)
- V Csordás
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O.B. 21, Debrecen H-4010, Hungary
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Philpott MP, Hayes SC, Thomsen CL, Reid PJ. Intermolecular hydrogen bonding in chlorine dioxide photochemistry: A time-resolved resonance Raman study. Chem Phys 2001. [DOI: 10.1016/s0301-0104(00)00370-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Thomsen CL, Reid PJ, Keiding SR. Quantum Yield for ClOO Formation following Photolysis of Aqueous OClO. J Am Chem Soc 2000. [DOI: 10.1021/ja002148o] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carsten L. Thomsen
- Contribution from the Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Århus C, Denmark, and Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
| | - Philip J. Reid
- Contribution from the Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Århus C, Denmark, and Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
| | - Søren R. Keiding
- Contribution from the Department of Chemistry, University of Aarhus, Langelandsgade 140, DK-8000 Århus C, Denmark, and Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
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Thomsen CL, Philpott MP, Hayes SC, Reid PJ. The formation of ClOO following the photoexcitation of aqueous OClO studied by two-color, time-resolved resonance Raman spectroscopy. J Chem Phys 2000. [DOI: 10.1063/1.480540] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Thomsen CL, Madsen D, Tho/gersen J, Byberg JR, Keiding SR. Femtosecond spectroscopy of the dissociation and geminate recombination of aqueous CS2. J Chem Phys 1999. [DOI: 10.1063/1.479364] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Hayes SC, Philpott MP, Mayer SG, Reid PJ. A Time-Resolved Resonance Raman Study of Chlorine Dioxide Photochemistry in Water and Acetonitrile. J Phys Chem A 1999. [DOI: 10.1021/jp9914065] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sophia C. Hayes
- Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
| | - Matthew P. Philpott
- Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
| | - Steven G. Mayer
- Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
| | - Philip J. Reid
- Department of Chemistry, Box 351700, University of Washington, Seattle, Washington 98195
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Esposito AP, Stedl T, Jónsson H, Reid PJ, Peterson KA. Absorption and Resonance Raman Study of the 2B1(X)−2A2(A) Transition of Chlorine Dioxide in the Gas Phase. J Phys Chem A 1999. [DOI: 10.1021/jp984368i] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anthony P. Esposito
- Department of Chemistry, University of Washington, P.O. Box 351700, Seattle, Washington 98195
| | - Todd Stedl
- Department of Chemistry, University of Washington, P.O. Box 351700, Seattle, Washington 98195
| | - Hannes Jónsson
- Department of Chemistry, University of Washington, P.O. Box 351700, Seattle, Washington 98195
| | - Philip J. Reid
- Department of Chemistry, University of Washington, P.O. Box 351700, Seattle, Washington 98195
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, 2710 University Drive, Pullman, Washington 99164-4630
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Thomsen CL, Madsen D, Keiding SR, Tho/gersen J, Christiansen O. Two-photon dissociation and ionization of liquid water studied by femtosecond transient absorption spectroscopy. J Chem Phys 1999. [DOI: 10.1063/1.478212] [Citation(s) in RCA: 152] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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