Publications

Semiconductor Photocatalysts

Hoffmann, M. R., Martin, S. T., Choi W. Y., and Bahnemann, D. W., Environmental Applications of Semiconductor Photocatalysis., Chem. Rev. 1995, 95, 69-96. ISI Times Cited: 5176 – Google Scholar: 6945

Choi, W. Y.; Termin, A.; and Hoffmann, M. R., Role of Metal-Ion Dopants in Quantum-Sized TiO2 – Correlation between Photoreactivity and Charge-Carrier Recombination Dynamics. J. Phys. Chem., 1994, 98, 13669-13679. Times Cited: 1212 -Google Scholar: 1531

Kormann C., Bahnemann D. W., and Hoffmann M. R., Preparation and Characterization of Quantum-Size Titanium Dioxide, J. Phys. Chem., 1988, 92, 5196-5201. ISI Times Cited: 528.

Bahnemann D. W., Kormann C., and Hoffmann M. R., Preparation and Characterization of Quantum-Size Zinc Oxide – A Detailed Spectroscopic Study,. J. Phys. Chem., 1987 91, 3789-3798. Times Cited: 436

Kormann, C.; Bahnemann, D. W.; and Hoffmann, M. R., Photolysis of Chloroform and Other Organic Molecules in Aqueous TiO2 Suspensions,. Environ. Sci. Technol., 1991, 25, 494-500. Times Cited: 414

Kormann, C.; Bahnemann, D. W.; Hoffmann, M. R. Photocatalytic Production of H2O2 and Organic Peroxides in Aqueous Suspensions of TiO2, ZnO, and Desert Sand, Environ. Sci. Technol. 1988, 22, 798-806. Times Cited: 255

Atmospheric Chemistry

Kinugawa, T.; Enami, S.; Yabushita, A.; Kawasaki, M.; Hoffmann, M. R.; Colussi, A. J., Conversion of gaseous nitrogen dioxide to nitrate and nitrite on aqueous surfactants, Phys. Chem. Chem. Phys. 2011, 13: 5144.

 Hayase, S.; Yabushita, A.; Kawasaki, M.; Enami, S.; Hoffmann, M. R.; Colussi, A. J., “Heterogeneous Reaction of Gaseous Ozone with Aqueous Iodide in the Presence of Aqueous Organic Species” J. Phys. Chem. A 2010, 114, 6016.

Enami, S.; Stewart, L. A.; Hoffmann, M. R.; Colussi, A. J. “Superacid Chemistry on Mildly Acidic Water” J. Phys. Chem. Lett. 2010, 1, 3488.

 Enami, S.; Hoffmann, M. R.; Colussi, A. J. “Prompt Formation of Organic Acids in Pulse Ozonation of Terpenes on Aqueous Surfaces” J. Phys. Chem. Lett. 2010, 1, 2374.

 Boxe, C. S.; Worden, J. R.; Bowman, K. W.; Kulawik, S. S.; Neu, J. L.; Ford, W. C.; Osterman, G. B.; Herman, R. L.; Eldering, A.; Tarasick, D. W.; Thompson, A. M.; Doughty, D. C.; Hoffmann, M. R.; Oltmans, S. J. “Validation of northern latitude Tropospheric Emission Spectrometer stare ozone profiles with ARC-IONS sondes during ARCTAS: sensitivity, bias and error analysis” Atmos. Chem. Phys. 2010, 10, 9901.

 Enami, S.; Hoffmann, M. R.; Colussi, A. J., Proton Availability at the Air/Water Interface, J. Phys. Chem. Lett., 2010, 1, 1599-1604.

 Enami, S.; Hoffmann, M. R.; Colussi, A. J., Molecular Control of Reactive Gas Uptake on Water, J. Phys. Chem. A, 2010, 114, 5817-5822.

Cheng, J.; Soetjipto, C.; Hoffmann, M. R.; Colussi, A. J., Confocal Fluorescence Microscopy of the Morphology and Composition of Interstitial Fluids in Freezing Electrolyte Solutions J. Phys. Chem. Lett. 2010, 1, 374-378.

Rincon, A. G.; Guzman, M. I.; Hoffmann, M. R.; Colussi, A. J. Thermochromism of Model Organic Aerosol Matter J. Phys. Chem. Lett., 2010, 1, 368-373.

 Rincon, A. G.; Guzman, M. I.; Hoffmann, M. R.; Colussi, A. J. Optical Absorptivity versus Molecular Composition of Model Organic Aerosol Matter, J. Phys. Chem. A, 2009, 113, 10512-10520. 

Cheng, J.; Psillakis, E.; Hoffmann, M. R.; Colussi, A. J. Acid Dissociation versus Molecular Association of Perfluoroalkyl Oxoacids: Environmental Implications, J. Phys. Chem. A, 2009, 113, 8152-8156.

Enami, S.; Hoffmann, M. R.; Colussi, A. J. Simultaneous Detection of Cysteine Sulfenate, Sulfinate, and Sulfonate during Cysteine Interfacial Ozonolysis, J. Phys. Chem. B, 2009, 113, 9356-9358.

Enami, S.; Hoffmann, M. R.; Colussi, A. J. How Phenol and alpha-Tocopherol React with Ambient Ozone at Gas/Liquid Interfaces, J. Phys. Chem. A, 2009, 113, 7002-7010.

 Enami, S.; Hoffmann, M. R.; Colussi, A. J. Absorption of Inhaled NO2, J. Phys. Chem. B, 2009, 113, 7977-7981.

 Psillakis, E.; Cheng, J.; Hoffmann, M. R.; Colussi, A. J. Enrichment Factors of Perfluoroalkyl Oxoanions at the Air/Water Interface, J. Phys. Chem. A, 2009, 113, 8826-8829.

 Rincon, A. G.; Guzman, M. I.; Hoffmann, M. R.; Colussi, A. J. Optical Absorptivity versus Molecular Composition of Model Organic Aerosol Matter, J. Phys. Chem. A, 2009, 113, 10512-10520. 

Yabushita, A.; Enami, S.; Sakamoto, Y.; Kawasaki, M.; Hoffmann, M. R.; Colussi, A. J. Anion-Catalyzed Dissolution of NO2 on Aqueous Microdroplets, J. Phys. Chem. A 2009, 113, 4844-4848.

Enami, S.; Hoffmann, M. R.; Colussi, A. J. Ozone Oxidizes Glutathione to a Sulfonic Acid, Chem. Res. Toxicol. 2009, 22, 35-40.

Enami, S.; Hoffmann, M. R.; Colussi, A. J., Ozonolysis of uric acid at the air/water interface, J. Phys. Chem. B 2008, 112, 4153-4156.

Enami, S.; Hoffmann, M. R.; Colussi, A. J., Acidity enhances the formation of a persistent ozonide at aqueous ascorbate/ozone gas interfaces, Proc. Natl. Acad. Sci. U. S. A. 2008, 105, 7365-7369.

Guzman, M. I.; Hildebrandt, L.; Colussi, A. J.; Hoffmann, M. R., Cooperative hydration of pyruvic acid in ice, J. Am. Chem. Soc. 2006, 128, 10621-10624.

 Guzman, M. I.; Colussi, A. J.; Hoffmann, M. R., Photogeneration of distant radical pairs in aqueous pyruvic acid glasses, J. Phys. Chem. A 2006, 110, 931-935.

Guzman, M. I.; Colussi, A. J.; Hoffmann, M. R., Photoinduced oligomerization of aqueous pyruvic acid, J. Phys. Chem. A 2006, 110, 3619-3626.

Cheng, J.; Vecitis, C. D.; Hoffmann, M. R.; Colussi, A. J. Experimental anion affinities for the air/water interface, J. Phys. Chem. B 2006, 110, 25598-25602.

Sonochemistry

Zhao, D. M.; Cheng, J.; Vecitis, C. D.; Hoffmann, M. R. “Sorption of Perfluorochemicals to Granular Activated Carbon in the Presence of Ultrasound” J. Phys. Chem. A 2011, 115, 2250.

Vecitis, C. D.; Wang, Y. J.; Cheng, J.; Park, H.; Mader, B. T.; Hoffmann, M. R. “Sonochemical Degradation of Perfluorooctanesulfonate in Aqueous Film-Forming Foams” Environ. Sci. Technol. 2010, 44, 432.

Vecitis, C. D.; Lesko, T.; Colussi, A. J.; Hoffmann, M. R. “Sonolytic Decomposition of Aqueous Bioxalate in the Presence of Ozone” J. Phys. Chem. A 2010, DOI: 10.1021/jp9115386

Cheng, J.; Vecitis, C. D.; Park, H.; Mader, B. T.; Hoffmann, M. R. “Sonochemical Degradation of Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoate (PFOA) in Groundwater: Kinetic Effects of Matrix Inorganics” Environ. Sci. Technol. 2010, 44, 445.

Vecitis, C. D.; Park, H.; Cheng, J.; Mader, B. T.; Hoffmann, M. R. “Treatment technologies for aqueous perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA)” Front. Environ. Sci. Eng. China 2009, 3, 129.

Park, H.; Vecitis, C. D.; Cheng, J.; Choi, W.; Mader, B. T.; Hoffmann, M. R. “Reductive Defluorination of Aqueous Perfluorinated Alkyl Surfactants: Effects of Ionic Headgroup and Chain Length” J. Phys. Chem. A 2009, 113, 690.

Campbell, T. Y.; Vecitis, C. D.; Mader, B. T.; Hoffmann, M. R. “Perfluorinated Surfactant Chain-Length Effects on Sonochemical Kinetics” J. Phys. Chem. A 2009, 113, 9834.

Vecitis, C. D.; Park, H.; Cheng, J.; Mader, B. T.; Hoffmann, M. R. “Enhancement of Perfluorooctanoate and Perfluorooctanesulfonate Activity at Acoustic Cavitation Bubble Interfaces” J. Phys. Chem. C 2008, 112, 16850.

Vecitis, C. D.; Park, H.; Cheng, J.; Mader, B. T.; Hoffmann, M. R. “Kinetics and mechanism of the sonolytic conversion of the aqueous perfluorinated surfactants, perfluorooctanoate (PFOA), and perfluorooctane sulfonate (PFOS) into inorganic products” J. Phys. Chem. A 2008, 112, 4261.

Lesko, T.; Colussi, A. J.; Hoffmann, M. R. “Sonochemical decomposition of phenol: Evidence for a synergistic effect of ozone and ultrasound for the elimination of total organic carbon from water” Environ. Sci. Technol. 2006, 40, 6818.

Hung, H. M.; Kang, J. W.; Hoffmann, M. R. “The sonolytic destruction of methyl tert-butyl ether present in contaminated groundwater” Water Environ. Res. 2002, 74, 545.

Destaillats, H.; Alderson, T. W.; Hoffmann, M. R. “Applications of ultrasound in NAPL remediation: Sonochemical degradation of TCE in aqueous surfactant solutions” Environ. Sci. Technol. 2001, 35, 3019.

Ching, W. K.; Colussi, A. J.; Sun, H. J.; Nealson, K. H.; Hoffmann, M. R. “Escherichia coli disinfection by electrohydraulic discharges” Environ. Sci. Technol. 2001, 35, 4139.

Weavers, L. K.; Malmstadt, N.; Hoffmann, M. R. “Kinetics and mechanism of pentachlorophenol degradation by sonication, ozonation, and sonolytic ozonation” Environ. Sci. Technol. 2000, 34, 1280.

Hung, H. M.; Ling, F. H.; Hoffmann, M. R. “Kinetics and mechanism of the enhanced reductive degradation of nitrobenzene by elemental iron in the presence of ultrasound” Environ. Sci. Technol. 2000, 34, 1758.

Destaillats, H.; Colussi, A. J.; Joseph, J. M.; Hoffmann, M. R. “Synergistic effects of sonolysis combined with ozonolysis for the oxidation of azobenzene and methyl orange” J. Phys. Chem. A 2000, 104, 8930.

Colussi, A. J.; Hung, H. M.; Hoffmann, M. R. “Sonochemical degradation rates of volatile solutes” J. Phys. Chem. A 1999, 103, 2696.

Colussi, A. J.; Hoffmann, M. R. “Vapor supersaturation in collapsing bubbles. Relevance to the mechanisms of sonochemistry and sonoluminescence” J. Phys. Chem. A 1999, 103, 11336.

Colussi, A. J.; Weavers, L. K.; Hoffmann, M. R. “Chemical bubble dynamics and quantitative sonochemistry” J. Phys. Chem. A 1998, 102, 6927.

Weavers, L. K.; Ling, F. H.; Hoffmann, M. R. “Aromatic compound degradation in water using a combination of sonolysis and ozonolysis” Environ. Sci. Technol. 1998, 32, 2727.
Weavers, L. K.; Hoffmann, M. R. “Sonolytic decomposition of ozone in aqueous solution: Mass transfer effects” Environ. Sci. Technol. 1998, 32, 3941.

Hung, H. M.; Hoffmann, M. R. “Kinetics and mechanism of the enhanced reductive degradation of CCl4 by elemental iron in the presence of ultrasound” Environ. Sci. Technol. 1998, 32, 3011.

Hoffmann, M. R.; Hua, I.; Hochemer, R. “Application of ultrasonic irradiation for the degradation of chemical contaminants in water” Ultrason. Sonochem. 1996, 3, S163.

Hua, I.; Hochemer, R. H.; Hoffmann, M. R. “Sonolytic Hydrolysis of p-Nitrophenyl Acetate – The Role of Supercritical Water” J. Phys. Chem. 1995, 99, 2335.

Hua, I.; Hochemer, R. H.; Hoffmann, M. R. “Sonochemical Degradation of p-Nitrophenol in a Parallel-Plate Near-Field Acoustical Processor” Environ. Sci. Technol. 1995, 29, 2790.

Kotonarou, A.; Mills, G.; Hoffmann, M. R. “Oxidation of Hydrogen Sulfide in Aqueous-Solution by Ultrasonic Irradiation” Environ. Sci. Technol. 1992, 26, 2420.

Kotronarou, A.; Mills, G.; Hoffmann, M. R. “Ultrasonic Irradiation of p-Nitrophenol in Aqueous-Solution” J. Phys. Chem. 1991, 95, 3630.

Hoffmann, M. R.; Hua, I.; Hochemer, R. “Application of ultrasonic irradiation for the degradation of chemical contaminants in water” Ultrason. Sonochem. 1996, 3, S163.

Kotronarou, A.; Mills, G.; Hoffmann, M. R. “Ultrasonic Irradiation of p-Nitrophenol in Aqueous-Solution” J. Phys. Chem. 1991, 95, 3630.

Kotronarou, A.; Mills, G.; Hoffmann, M. R. “DECOMPOSITION OF PARATHION IN AQUEOUS-SOLUTION BY ULTRASONIC IRRADIATION” Environ. Sci. Technol. 1992, 26, 1460.

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