“Local pH induced electrochemical CO₂ reduction on nanostructured Ag for adjustable syngas composition”, Electrochimica Acta 2021, 395, 139190

H. Kim, K. Shim, K. E. Lee, J. W. Han, Y. Zhu, W. Choi, “Photocatalytic Production of H₂O₂ from Water and Dioxygen only under Visible Light using Organic Polymers: Systematic Study of the Effects of Heteroatoms”, Appl. Catal. B: Environ. 2021, 299, 120666

M. S. Koo, S. Han, K. Cho, W. Choi, “Quantitative Photoelectrochemical Conversion of Ammonium to Dinitrogen Using Bromide-Mediated Redox Cycle”, ACS ES&T Eng. 2021, 1, 1287-1297

T. H. Jeon, H.-i. Cho, H. Park, H.-i. Kim, W. Choi, “Synergistic Effect of Sn Doping and Hydrogenation on Hematite Electrodes for Photoelectrochemical Water Oxidation”, Mater. Chem. Frontiers 2021, 5, 6592-6602

S. Lee, S. Kim, C. Park, W. Kim, S. Ryu, W. Choi, “Solar Denitrification Coupled with in situ Water Splitting”, Energy Environ. Sci. 2021, 14, 4437-4450

Y. Zhao, P. Zhang, Z. Yang, L. Li, J. Gao, S. Chen, T. Xie, C. Diao, S. Xi, B. Xiao, C. Hu, W. Choi, “Mechanistic Analysis of Multiple Processes Controlling Solar-driven H₂O₂ Synthesis Using Engineered Polymeric Carbon Nitride”, Nature Commun. 2021, 12:3701

X. Yang, H. Sun, G. Li, T. An, W. Choi, “Fouling of TiO2 Induced by Natural Organic Matters during Photocatalytic Water Treatment: Mechanisms and Regeneration Strategy”, Appl. Catal. B: Environ. 2021, 294, 120252

F. He, W. Jeon, W. Choi, “Photocatalytic Air Purification Mimicking the Self-Cleaning Process of the Atmosphere”, Nature Commun. 2021, 12:2528

T. H. Jeon, B. Kim, C. Kim, C. Xia, H. Wang, P.J.J. Alvarez, W. Choi, “Solar Photoelectrochemical Synthesis of Electrolyte-free H2O2 Aqueous Solution without Needing Electrical Bias and H2”, Energy Environ. Sci. 2021, 14, 3110-3119

H. Rajput, E. E. Kwon, S. A. Younis, S. Weon, T. H. Jeon, W. Choi, K.-H. Kim, “Photoelectrocatalysis as a High-Efficiency Platform for Pulping Wastewater Treatment and Energy Production”, Chem. Eng. J. 2021, 412, 128612

J. Y. Hwang, G.-h. Moon, B. Kim, T. Tachikawa, T. Majima, S. Hong, K. Cho, W. Kim, W. Choi, “Crystal Phase-dependent Generation of Mobile OH Radicals on TiO2: Revisiting the Photocatalytic Oxidation Mechanism of Anatase and Rutile”, Appl. Catal. B: Environ. 2021, 286, 119905

R. Yin, Y. Chen, J. Hu, G. Lu, L. Zeng, W. Choi, M. Zhu, “Complexes of Fe(III)-organic pollutants that directly activate Fenton-like processes under visible light”, Appl. Catal. B: Environ. 2021, 283, 119663

W. Choi, N. G. Love, J.-H. Kim, J. Ma. “Launch of ACS ES&T Engineering and Redefining Environmental Engineering”, ACS ES&T Eng. 2021, 1, 154-156.

M. S. Koo, H. Kim, K. E. Lee, W. Choi, “Photoconversion of Cyanide to Dinitrogen Using Durable Electrode of TaON Overlayer-Deposited WO3 Film and Visible Light”, ACS ES&T Eng. 2021, 1, 228−238.

J. Yang, H. Miao, J. Jing, Y. Zhu, W. Choi, “Photocatalytic activity enhancement of PDI supermolecular via π-π action and energy level adjusting with graphene quantum dots”, Appl. Catal. B 2021, 281, 119547

D. W. Min, K. Kim, B. Kim, G. Lee, W. Choi, "Cr(VI) Formation via Oxyhalide-Induced Oxidative Dissolution of Chromium Oxide/Hydroxide in Aqueous and Frozen solution", Environ. Sci. Technol. 2020, 54, 14413-14421

S. W. Jang, S. Dutta, A. Kumar, Y.-R. Hong, H. Kang, S. Lee, S. Ryu, W. Choi, I. S. Lee, “Holey Pt Nanosheets on NiFe-Hydroxide Laminates: Synergistically Enhanced Electrocatalytic 2D-Interface toward Hydrogen Evolution Reaction”, ACS Nano 2020, 14, 10578-10588.

Y. Guo, H. Li, W. Ma, W. Shi, Y. Zhu, W. Choi, “Photocatalytic Activity Enhanced via Surface Hybridization”, Carbon Energy 2020, 2, 308-349. 

P. Zhang, Y. Tong, Y. Liu, J. J. M. Vequizo, H. Sun, C. Yang, A. Yamakata, F. Fan, W. Lin, X. Wang, W. Choi, “Heteroatom dopants promote two-electron O2 reduction for photocatalytic production of H2O2 on polymeric carbon nitride”, Angew. Chem. Int. Ed. 2020, 59, 16209-16217

Y. S. Baek, K. Kim, A. Saiz-Lopez, D. W. Min, B. Kim, W. Choi, C. H. Choi, “Entangled Iodine and Hydrogen Peroxide Formation in Ice”, Phys. Chem. Chem. Phys. 2020, 22, 16532--16535