D. Y. Chung, H.-i. Kim, Y.-H. Chung, M. J. Lee, S. J. Yoo, A. D. Bokare, W. Choi, Y.-E. Sung “Inhibition of CO Poisoning on Pt Catalyst Coupled with the Reduction of Toxic Hexavalent Chromium in a Dual-Functional Fuel Cell”, Scientific Reports, 2014, 4, 7450

G.-h. Moon, W. Kim, A. D. Bokare, N.-e. Sung, W. Choi, “Solar Production of H2O2 on Reduced Graphene Oxide-TiO2 Hybrid Photocatalysts Consisting of Earth-Abundant Elements Only”, Energy Environ. Sci., 2014, 7, 4023-4028

W. Kim, T. Tachikawa, G.-h. Moon, T. Majima, W. Choi, “Molecular-Level Understanding of the Photocatalytic Activity Difference between Anatase and Rutile Nanoparticles”, Angew. Chem. Int. Ed., 2014, 53, 14036-14041

C. Kim, S. Kim, J. Choi, J. Lee, J. S. Kang, Y.-E. Sung, J. Lee, W. Choi, J. Yoon, “Blue TiO2 Nanotube Array as an Oxidant Generating Novel Anode Material Fabricated by Simple Cathodic Polarization”, Electrochim. Acta, 2014, 141, 113-119

A. D. Bokare, W. Choi, “Review of Iron-free Fenton-like Systems for Activating H₂O₂in Advanced Oxidation Processes”, J. Hazard. Mater., 2014, 275, 121-135.

J. Lee, J. Kim, W. Choi, “Oxidation of Aquatic Pollutants by Ferrous-Oxalate Complexes under Dark Aerobic Conditions”, J. Hazard. Mater., 2014, 274, 79-86.

D.-h. Kim, J. Lee, J. Ryu, K. Kim, W. Choi, “Arsenite Oxidation Initiated by the UV Photolysis of Nitrite and Nitrate”, Environ. Sci. Technol., 2014, 48, 4030-4037.

Q. Zheng, H.-J. Lee, J. Lee, W. Choi, N.-B. Park, C. Lee, “Electrochromic Titania Nanotube Arrays for the Enhanced Photocatalytic Degradation of Phenol and Pharmaceutical Compounds”, Chem. Eng. J., 2014, 249, 285-292.

G.-h. Moon, D.-h. Kim, H.-i. Kim, A. D. Bokare, W. Choi, “Platinum-like Behavior of Reduced Graphene Oxide as a Cocatalyst on TiO₂ for the Efficient Photocatalytic Oxidation of Arsenite”, Environ. Sci. Technol. Lett., 2014, 1, 185-190.

J. Lim, D. Monllor-Satoca, J. S. Jang, S. Lee, W. Choi, “Visible Light Photocatalysis of Fullerol-Complexed TiO₂ Enhanced by Nb Doping”, Appl. Catal. B: Environ., 2014, 152-153, 233-240.

S. Bae, S. Kim, S. Lee, W. Choi, “Dye Decolorization Test for the Activity Assessment of Visible Light Photocatalysts: Realities and Limitations”, Catal. Today,2014, 224, 21-28.

G. Zhang, G. Kim, W. Choi, “Visible Light Driven Photocatalysis Mediated via Ligand-to-Metal Charge Transfer (LMCT): Alternative Way of Solar Activation of Titania”,Energy Environ. Science, 2014, 7, 954-966.

Y. Choi, Y. Ye, Y. Mackeyev, M. Cho, L. J. Wilson, J. Lee, P. J. Alvarez, W. Choi, J. Lee, “C₆₀ Aminofullerene-Magnetite Nanocomposite Designed for Efficient Visible Light Photocatalysis and Magnetic recovery”, Carbon, 2014, 69, 92-100.

L. Liang, W. Sun, X. Guan, Y. Huang, W. Choi, H. Bao, L. Li, Z. Jiang, “Weak Magnetic Field Significantly Enhances Selenite Removal Kinetics by Zero Valent Iron”, Water Research, 2014, 49, 371-380.

W. Kim, T. Tachikawa, H. Kim, N. Lakshminarasimhan, P. Murugan, H. Park, T. Majima, W. Choi, “Visible Light Photocatalytic Activities of Nitrogen and Platinum-Doped TiO₂: Synergistic Effects of Co-dopants”, Appl. Catal. B: Environ., 2014, 147, 642-650.

J. Lim, P. Murugan, N. Lakshminarasimhan, J. Kim, J. Lee, S. Lee, W. Choi, “Synergic photocatalytic effects of nitrogen and niobium co-doping in TiO₂ for the redox conversion of aquatic pollutants under visible light ”, J. Catal., 2014, 310: 91-99.

H. Kim, S. Kim, J.-K. Kang, W. Choi, "Graphene oxide embedded into TiO₂ nanofiber: Effective hybrid photocatalyst for solar conversion”, J. Catal., 2014, 309, 49-57.