Shikha Garg

Senior Research Associate

Senior Research Associate in the School of Civil and Environmental Engineering

Dr Shikha Garg is a Senior Research Associate in the School of Civil and Environmental Engineering. Her research interests include:

  • Photochemistry in aquatic systems
  • Fate and transformation of contaminants
  • Free radical chemistry
  • Advanced oxidation processes
  • Biogeochemical processes and kinetics

publications

Journal articles
add
Song Z; Garg S; Ma J; Waite TD, 2020, 'Selective Arsenic Removal from Groundwaters Using Redox-Active Polyvinylferrocene-Functionalized Electrodes: Role of Oxygen', Environmental Science and Technology, vol. 54, pp. 12081 - 12091, http://dx.doi.org/10.1021/acs.est.0c03007
2020
Pan Y; Ruan X; Garg S; Waite TD; Lei Y; Yang X, 2020, 'Copper Inhibition of Triplet-Sensitized Phototransformation of Phenolic and Amine Contaminants', Environmental Science and Technology, vol. 54, pp. 9980 - 9989, http://dx.doi.org/10.1021/acs.est.0c01693
2020
Garg S; Xing G; Waite TD, 2020, 'Influence of pH on the Kinetics and Mechanism of Photoreductive Dissolution of Amorphous Iron Oxyhydroxide in the Presence of Natural Organic Matter: Implications to Iron Bioavailability in Surface Waters', Environmental Science and Technology, vol. 54, pp. 6771 - 6780, http://dx.doi.org/10.1021/acs.est.0c01257
2020
Xing G; Garg S; Miller CJ; Pham AN; Waite TD, 2020, 'Effect of Chloride and Suwannee River Fulvic Acid on Cu Speciation: Implications to Cu Redox Transformations in Simulated Natural Waters', Environmental Science and Technology, vol. 54, pp. 2334 - 2343, http://dx.doi.org/10.1021/acs.est.9b06789
2020
Yuan Y; Xing G; Garg S; Ma J; Kong X; Dai P; Waite TD, 2020, 'Mechanistic insights into the catalytic ozonation process using iron oxide-impregnated activated carbon', Water Research, vol. 177, http://dx.doi.org/10.1016/j.watres.2020.115785
2020
He D; Garg S; Wang Z; Li L; Rong H; Ma X; Li G; An T; Waite TD, 2019, 'Silver sulfide nanoparticles in aqueous environments: Formation, transformation and toxicity', Environmental Science: Nano, vol. 6, pp. 1674 - 1687, http://dx.doi.org/10.1039/c9en00138g
2019
Xing G; Garg S; David Waite T, 2019, 'Is Superoxide-Mediated Fe(III) Reduction Important in Sunlit Surface Waters?', Environmental Science and Technology, vol. 53, pp. 13179 - 13190, http://dx.doi.org/10.1021/acs.est.9b04718
2019
Rong H; Garg S; Waite TD, 2019, 'Impact of light and Suwanee River Fulvic Acid on O2 and H2O2 Mediated Oxidation of Silver Nanoparticles in Simulated Natural Waters', Environmental Science and Technology, vol. 53, pp. 6688 - 6698, http://dx.doi.org/10.1021/acs.est.8b07079
2019
Song Z; Garg S; Ma J; Waite TD, 2019, 'Modified Double Potential Step Chronoamperometry (DPSC) Method for As(III) Electro-oxidation and Concomitant As(V) Adsorption from Groundwaters', Environmental Science and Technology, vol. 53, pp. 9715 - 9724, http://dx.doi.org/10.1021/acs.est.9b01762
2019
He C; He D; Collins RN; Garg S; Mu Y; Waite TD, 2018, 'Effects of Good's Buffers and pH on the Structural Transformation of Zero Valent Iron and the Oxidative Degradation of Contaminants', Environmental Science and Technology, vol. 52, pp. 1393 - 1403, http://dx.doi.org/10.1021/acs.est.7b04030
2018
Rong H; Garg S; Westerhoff P; Waite TD, 2018, 'In vitro characterization of reactive oxygen species (ROS) generation by the commercially available Mesosilver™ dietary supplement', Environmental Science: Nano, vol. 5, pp. 2686 - 2698, http://dx.doi.org/10.1039/c8en00701b
2018
Rong H; Garg S; Waite TD, 2018, 'Transformation of AgCl Particles under Conditions Typical of Natural Waters: Implications for Oxidant Generation', Environmental Science and Technology, vol. 52, pp. 11621 - 11631, http://dx.doi.org/10.1021/acs.est.8b02902
2018
Garg S; Jiang C; Waite TD, 2018, 'Impact of pH on Iron Redox Transformations in Simulated Freshwaters Containing Natural Organic Matter', Environmental Science and Technology, vol. 52, pp. 13184 - 13194, http://dx.doi.org/10.1021/acs.est.8b03855
2018
Pan Y; Garg S; Waite TD; Yang X, 2018, 'Copper Inhibition of Triplet-Induced Reactions Involving Natural Organic Matter', Environmental Science and Technology, vol. 52, pp. 2742 - 2750, http://dx.doi.org/10.1021/acs.est.7b05655
2018
Garg S; Wang K; Waite TD, 2017, 'Impact of Microcystis aeruginosa Exudate on the Formation and Reactivity of Iron Oxide Particles Following Fe(II) and Fe(III) Addition', Environmental Science and Technology, vol. 51, pp. 5500 - 5510, http://dx.doi.org/10.1021/acs.est.7b00660
2017
Jiang C; Garg S; Waite TD, 2017, 'Iron Redox Transformations in the Presence of Natural Organic Matter: Effect of Calcium', Environmental Science and Technology, vol. 51, pp. 10413 - 10422, http://dx.doi.org/10.1021/acs.est.7b01944
2017
Wang K; Garg S; Waite TD, 2017, 'Light-Mediated Reactive Oxygen Species Generation and Iron Redox Transformations in the Presence of Exudate from the Cyanobacterium Microcystis aeruginosa', Environmental Science and Technology, vol. 51, pp. 8384 - 8395, http://dx.doi.org/10.1021/acs.est.7b01441
2017
Wang K; Garg S; Waite TD, 2017, 'Redox Transformations of Iron in the Presence of Exudate from the Cyanobacterium Microcystis aeruginosa under Conditions Typical of Natural Waters', Environmental Science and Technology, vol. 51, pp. 3287 - 3297, http://dx.doi.org/10.1021/acs.est.7b00396
2017
Garg S; Rong H; Miller CJ; Waite TD, 2016, 'Oxidative Dissolution of Silver Nanoparticles by Chlorine: Implications to Silver Nanoparticle Fate and Toxicity', Environmental Science and Technology, vol. 50, pp. 3890 - 3896, http://dx.doi.org/10.1021/acs.est.6b00037
2016
Garg S; Rong H; Miller CJ; Waite TD, 2016, 'Chlorine-Mediated Regeneration of Semiconducting AgCl(s) Following Light-Induced Ag0 Formation: Implications to Contaminant Degradation', Journal of Physical Chemistry C, vol. 120, pp. 5988 - 5996, http://dx.doi.org/10.1021/acs.jpcc.5b11273
2016
Garg S; Jiang C; David Waite T, 2015, 'Mechanistic insights into iron redox transformations in the presence of natural organic matter: Impact of pH and light', Geochimica et Cosmochimica Acta, vol. 165, pp. 14 - 34, http://dx.doi.org/10.1016/j.gca.2015.05.010
2015
Ma T; Garg S; Miller CJ; Waite TD, 2015, 'Contaminant degradation by irradiated semiconducting silver chloride particles: Kinetics and modelling', Journal of Colloid and Interface Science, vol. 446, pp. 351 - 357, http://dx.doi.org/10.1016/j.jcis.2014.11.069
2015
Jiang C; Garg S; Waite TD, 2015, 'Hydroquinone-Mediated Redox Cycling of Iron and Concomitant Oxidation of Hydroquinone in Oxic Waters under Acidic Conditions: Comparison with Iron-Natural Organic Matter Interactions', Environmental Science and Technology, vol. 49, pp. 14076 - 14084, http://dx.doi.org/10.1021/acs.est.5b03189
2015
Garg S; Ma T; Miller CJ; Waite TD, 2014, 'Mechanistic insights into free chlorine and reactive oxygen species production on irradiation of semiconducting silver chloride particles', Journal of Physical Chemistry C, vol. 118, pp. 26659 - 26670, http://dx.doi.org/10.1021/jp5068878
2014
Garg S; Ito H; Rose AL; Waite TD, 2013, 'Mechanism and kinetics of dark iron redox transformations in previously photolyzed acidic natural organic matter solutions', Environmental Science and Technology, vol. 47, pp. 1861 - 1869, http://dx.doi.org/10.1021/es3035889
2013
Garg S; Jiang C; Miller CJ; Rose AL; Waite TD, 2013, 'Iron redox transformations in continuously photolyzed acidic solutions containing natural organic matter: Kinetic and mechanistic insights', Environmental Science and Technology, vol. 47, pp. 9190 - 9197, http://dx.doi.org/10.1021/es401087q
2013
Jones AM; Garg S; He D; Pham AN; Waite TD, 2011, 'Superoxide-Mediated Formation and Charging of Silver Nanoparticles', Environmental Science and Technology, vol. 45, pp. 1428 - 1434, http://dx.doi.org/10.1021/es103757c
2011
Waite TD; Garg S; Rose AL, 2010, 'Photochemical production of superoxide and hydrogen peroxide from natural organic matter', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, vol. 239, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000208189302286&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2010
Garg S; Rose AL; Waite TD, 2007, 'Superoxide mediated reduction of organically complexed iron(III): Comparison of non-dissociative and dissociative reduction pathways', Environmental Science and Technology, vol. 41, pp. 3205 - 3212, http://dx.doi.org/10.1021/es0617892
2007
Garg S; Rose AL; Godrant A; Waite TD, 2007, 'Iron uptake by the ichthyotoxic Chattonella marina (Raphidophyceae): Impact of superoxide generation', Journal of Phycology, vol. 43, pp. 978 - 991, http://dx.doi.org/10.1111/j.1529-8817.2007.00394.x
2007
Garg S; Rose AL; Waite TD, 2007, 'Superoxide-mediated reduction of organically complexed iron(III): Impact of pH and competing cations (Ca2+)', Geochimica et Cosmochimica ACTA, vol. 71, pp. 5620 - 5634, http://dx.doi.org/10.1016/j.gca.2007.08.002
2007
Garg S; Rose AL; Godrant A; Waite TD, 2007, 'FUEL 50-Chemistry of single walled carbon nanotubes: Applications to biomolecule detection, nanotube separation, and electronic networks', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, vol. 233, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207722801859&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2007
Garg S; Rose AL; Waite TD, 2007, 'Production of reactive oxygen species on photolysis of dilute aqueous quinone solutions', Photochemistry and Photobiology, vol. 83, pp. 904 - 913, http://dx.doi.org/10.1111/j.1751-1097.2007.00075.x
2007
Garg S; Rose AL; Waite TD, 2006, 'GEOC 12-Superoxide mediated reduction of ferric-organic complexes at circumneutral pH', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, vol. 232, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207781605350&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2006
Waite TD; Rose AL; Garg S; Fujii M, 2006, 'Superoxide-mediated reduction of ferric iron in natural aquatic systems', Geochimica et Cosmochimica ACTA, vol. 70, pp. A681 - A681, http://dx.doi.org/10.1016/j.gca.2006.06.1606
2006
Conference Papers
add
Ma T; Garg S; Miller CJ; Waite TD, 2014, 'Photocatalytic degradation of contaminants by colloidal AgCl(s): Kinetic and mechanistic insights', in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, San Francisco, CA, presented at 248th National Meeting of the American-Chemical-Society (ACS), San Francisco, CA, 10 August 2014 - 14 August 2014, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349165103737&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2014
Garg S; Jiang C; Waite TD, 2014, 'Redox transformations of Fe in the presence of pre-photoloysed SRFA solutions', in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, San Francisco, CA, presented at 248th National Meeting of the American-Chemical-Society (ACS), San Francisco, CA, 10 August 2014 - 14 August 2014, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349167400129&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2014
He D; Garg S; Jones AM; Waite TD, 2011, 'Silver nanoparticle - reactive oxygen species interactions: Application of an electron charging-discharging model', in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, Denver, CO, presented at 242nd National Meeting of the American-Chemical-Society (ACS), Denver, CO, 28 August 2011 - 01 September 2011, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000299378302555&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2011
Waite TD; Jones AM; Garg S, 2010, 'Reactive oxygen species generation by elemental iron and silver nanoparticulates', in Geochimica et Cosmochimica ACTA, Pergamon-Elsevier Science Ltd, Kidlington, Oxford, England, pp. A1091 - A1091, presented at Goldschmidt, Knoxville, Tennessee, USA, 13 June 2010 - 18 June 2010, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000283941400223&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a
2010
Jones AM; Waite TD; He D; Garg S; Pham AN, 2010, 'Production of Reactive Oxygen Species by Silver Nanoparticles - Implications for Bactericidal Activity', in Production of Reactive Oxygen Species by Silver Nanoparticles - Implications for Bactericidal Activity, AOTs-16: 16th International Conference on Advanced Oxidation Technologies for Water and Air Remediation, San Diego, Californa, USA, pp. 81 - 81, presented at AOTs-16: 16th International Conference on Advanced Oxidation Technologies for Water and Air Remediation, San Diego, Californa, USA, 15 November 2010 - 18 November 2010
2010
Book Chapters
add
Garg S; Rose AL; Waite TD, 2012, 'Pathways Contributing to the Formation and Decay of Ferrous Iron in Sunlit Natural Waters', in Tratnyek PG; Grundl TJ; Haderlein SB (ed.), Aquatic Redox Chemistry, American Chemical Society, Washington, DC, pp. 153 - 176, http://dx.doi.org/10.1021/bk-2011-1071.ch008
2012
Theses / Dissertations
add
Garg S, 2007, Photochemical and biological production of superoxide: effect on redox cycling and bioavailability of iron
2007