Conference  Presentations

1. Lee, W., Choi, M.H., Choi, E., Hwang, J.-H., Enhanced Green Hydrogen Production from Diverse Chlamydomonas Reinhardtii Strains in Acetate-Enriched Environments, 247th ECS Meeting, Palais des Congrès de Montréal, Montréal, Canada, May 18– 22, 2025.

2. Yaghoobian, S., Ramirez-Ubillus, M.A., Chung, J.H., Na, Y.-C., Zhai, L., Hwang, J.-H., Innovative CuxS-based Electrodes for Scalable and Cost-effective PFAS Electrochemical Treatment, 247th ECS Meeting, Palais des Congrès de Montréal, Montréal, Canada, May 18– 22, 2025.

3. Yaghoobian, S., Ramirez-Ubillus, M.A., Zhai, L., Hwang, J.-H., CuxS-based electrodes for efficient and cost-effective electrochemical degradation of PFAS, GEE 2025, Concordia University, Montreal, Canada, May 22– 23, 2025.

4. Lee, W., Hwang, J.-H., Improved production of green hydrogen from various Chlamydomonas reinhardtii in changed photosystem II (PSII) by acetate-enriched environments, GEE 2025, Concordia University, Montreal, Canada, May 22– 23, 2025.

5. Tabatabaei, M., Ramirez Ubillus, M.A., Zhai, L., Hwang, J.-H., Development of Cu2S-Based Photocatalytic Materials for Efficient PFAS Removal from Water, GEE 2025, Concordia University, Montreal, Canada, May 22– 23, 2025.

6. An, J., Cabo, A., Hwang, J.-H., Kim, Y.J., Nam, B.H., Kim, B., Manufacturing geopolymer construction material from lunar soil simulant incorporating biologically precipitated calcium carbonate, The 2024 World Congress on Advances in Civil, Environmental, & Materials Research (ACEM24), The K Hotel, Seoul, South Korea, Aug. 19 – 22, 2024.

7. Sierra, K., An, J., Kim, Y.J., Hwang, J.-H., Nam, B.H., Porous Geopolymer Grout Composite for Geotechnical Applications, The 2024 World Congress on Advances in Civil, Environmental, & Materials Research (ACEM24), The K Hotel, Seoul, South Korea, Aug. 19 – 22, 2024.

8. Hwang, J.-H., Lee, W.H., A strategy to enhance photo-algal hydrogen production using external H+ ions in a dual photobioreactor, 245th ECS Meeting, San Francisco, CA, May 26-30, 2024.

9. Stoll, S., Adjei-Nimoh, S., Hwang, J-H., Fox, D., Kim, K-T., Zhai, L., Lee, W.H., A Novel Antibody-Dependent Microcystin-LR Detecting Biosensor to Monitor Blooms for Early Action, 20th IWA International Conference on Diffuse Pollution & Eutrophication, Daegu, South Korea, Dec. 6 –8, 2023

10. Baik, J., Hwang, J.H., Kim, K.-T., Lee, W.H., Microbial Fuel Cell as a Biosensor for In Situ Monitoring of the Water Toxicity, Pittcon 2023, Philadelphia, PA, March 18-22, 2023

11. Hwang, J.H., Kim, K-T., Han, G., Kushima, A., Zhai, L., Lee, W.H., Electrochemical Oxidation of PFOA and PFOS in Water Samples using Novel Nanoparticle Embedded (Bio)Polymer-Coated Electrodes, 2022 AEESP Research and Education Conference, St. Louis, MO, June 28-30, 2022

12. Stoll, S., Hwang, J.-H., Fox. D., Zhai, L., Lee, W.H., A Novel Biosensor for Detection of Microcystin-LR for Early Warning of Harmful Algal Blooms, 2022 AEESP Research and Education Conference, St. Louis, MO, June 28-30, 2022

13. Pilevar, M., Hwang, J-H., Lee, W.H., A Microbial Fuel Cell-based Toxicity Monitoring Sensor for Water Containing Heavy Metal Ions, 2022 AEESP Research and Education Conference, St. Louis, MO, June 28-30, 2022

14. Lee, W.H., Hwang, J-H., Energy recovery using bioelectrochemical systems in oily wastewater treatment, 9th International Conference on Water Resources and Environment Research (ICWER 2022), April 25–27, 2022 (Virtual)

15. Pilevar, M., Hwang, J-H., Stanberry, J., Anagnostopoulos, V., Chumbimuni-Torres, K.Y., Lee, W.H., Bismuth-Biopolymer Chitosan Nanocomposite Sensors for Electrochemical Detection of Ni(II) and Co(II) in Water, 2022 Student Scholar Symposium, Orlando, FL, March 28 – April 1, 2022.

16. Stoll, S., Hwang, J-H., Fox, D., Zhai, L., Lee, W.H., Biosensor for detection of Microcystin-LR for early warning of harmful algal blooms, 2022 Student Scholar Symposium, Orlando, FL, March 28 – April 1, 2022.

17. Stoll, S., Hwang, J.H., Lee, W.H., Rapid and Simple MC-LR Check to Monitor Blooms for Early Action, US-KOREA Conference on Science, Technology and Entrepreneurship (UKC), Los Angeles, CA, Dec. 15–18, 2021.

18. Hwang, J.H., Afrin, S., K.T., Kim, Li Sip, Y.Y., Kelsey, K.L., Lundin, J.G., Daniels, G.C., Fox, D., Zhai, L., Lee, W.H., Novel Nanoparticle (NP)-embedded Electrodes for Electrochemical Oxidation of PFOA and PFOS in Water, 2021 SERDP/ESTCP Symposium, Washington DC, Nov. 30 – Dec. 3, 2021

19. Hwang, J.-H., Rodriguez, K.L., Fahad, S., Kim, K.T., Kushima, A., Lee, W.H., Electrochemical oxidation of PFOA and PFOS using a novel molybdenum disulfide (MoS2)-biopolymer-nanocarbon coated electrode, ACS National Meeting & Exposition, Atlanta, GA, and Online – August 22-26, 2021.

20. Kelsey, K.L., Hwang, J.H., Afrin, S., K.T., Kim, Li Sip, Y.Y., Fox, D., Zhai, L., Lee, W.H., Comparison of different nanoparticle-embedded electrodes for electrochemical oxidation of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), ACS National Meeting & Exposition, Atlanta, GA and Online – August 22-26, 2021.

21. Sarnyai, S., Sip, Y.Y., Hwang, J.-H., Fox, D., Zhai, L., Lee, W.H., Electrochemical mercury removal and recovery using polyelectrolyte nanofiber membrane, ACS National Meeting & Exposition, Atlanta, GA, and Online – August 22-26, 2021.

22. Lee, W.H., Hwang, J.-H., Fahad, S., Ryu, H., Kelsey, K.L., Domingo, J.S., Kushima, A., Recycling urine for hydrogen production in a microbial electrolysis cell (MEC) system using a novel MoS2 nano carbon coated electrode, 11th International Conference on Environmental Pollution and Remediation (ICEPR’21), August 5-7, 2021.

23. Fox, D., Sarnyai, S., Li Sip, Y.Y., Hwang, J-H., Lee, W.H., Zhai, L., Detecting mercury ions using silver nanoparticle loaded hydrodrogel nanofiber electrodes, Waste management 2021 symposium (Virtual), March 8-12, 2021.

24. Sarnyai, S., Li Sip, Y.Y., Hwang, J.-H., Zhai, L., Lee, W.H., Detecting Mercury using Polyelectrolyte nanofiber membranes with nanoparticles. 2021 Pittcon, (Virtual), March 8-12, 2021.

25. Pathak, P., Hwang, J.-H., Li, H.T.R., Lee, W.H., Cho, H., A conformal biopolymer metal composite electrochemical sensor for in-situ detection of heavy metal ion, 2020 Pittcon, McCormick Place, Chicago, Illinois, USA, March 1-5, 2020.

26. Hwang, J.-H., Lee, W.H., Sustainable bioenergy production from wastewater using microalgal technology, 2019 International Conference on Resource Sustainability - Cities (icRS Cities 2019), Adelaide, Australia, July 1-3, 2019.

27. Hwang, J.-H., Lee, W.H., Sustainable bioenergy production using green algae in wastewater treatment, 2019 Algae biomass, Rosen Centre Orlando, Orlando, FL, September 16–19, 2019.

28. Hwang, J.-H., Lee, W.H., Renewable energy production from wastewater using microalgae, 2019 AEESP Research and Education Conference at ASU, Tempe, AZ, May 14–16, 2019.

29. Hwang, J.-H., Ricchino, A., Lee, W.H., Effects of Light Intensity on Continuous Photosynthetic Biohydrogen Production by Microalgae, 2019 AEESP Research and Education Conference at ASU, Tempe, AZ, May 14–16, 2019.

30. Munshi, M.F., Hwang, J.-H., Ricchino, A., Lee, W.H., Impact of reverse salt flux (RSF) and applied electrical field on micro-algae in a forward osmosis (FO) harvesting system, 2019 AEESP Research and Education Conference at ASU, Tempe, AZ, May 14–16, 2019.

31. Rodriguez, K.L., Hwang, J.-H., Lee, W.H., Carbon-based in situ Electrochemical Detection of Copper in Drinking Water, 16th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 4, 2019.

32. Hernan, S., Hwang, J-H., Lee, W.H., A Novel Superhydrophobic MoS2 Sponge Oil-Water Separator (NMS-OWS), 16th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 4, 2019.

33. Hwang, J.-H., Rodriguez, K.L., Lee, W.H., Microalgal photolysis-mediated biohydrogen production in acetate-enriched wastewater, 257th ACS National Meeting & Exposition, Orlando, FL, March 31– April 4, 2019. 

34. Lee, W.H., Hwang, J.-H., Rodriguez, K.L., Munshi, M.F., Extracurricular undergraduate research and education in environmental chemistry and sustainability through EPA P3 projects, 257th ACS National Meeting & Exposition, Orlando, FL, March 31– April 4, 2019. 

35. Ko, T.J., Hwang, J.-H., Davies, D., Rodriguez, K.L., Shawkat, M.S., Kim, J.H., Lee, W.H., Jung, Y., Superhydrophobic 2D MoS2-based Multifunctional Sponge for Spontaneous Detection and Absorption of Spilled Oil, Material Research Society (MRS), Boston, MA, USA, Nov. 25, 2018.

36. Hwang, J.-H., lslam A., Ko, T.J., Rodriguez, K.L., Jung, Y., Lee, W.H., Noble Vertically-Aligned 2D Layers of MoS2 Nanofilms-based Microsensor for Pb2+ Detection in Drinking Water, Water Quality Technology Conference, Toronto, Canada, Nov. 11-15, 2018.

37. Hwang, J.-H., Rodriguez, K.L., Lee, W.H., Renewable Electricity Generation from Oily Wastewater in Single Chamber Microbial Fuel Cells (MFCs), Materials Innovation for Sustainable Agriculture (MISA) 2018, Orlando, FL, Oct. 31-Nov. 2, 2018.

38. Hwang, J-H., Ko, T., Jung, Y., Lee, W.H., A Novel 2D MoS2 Sponge Oil-Water Separator (MDSOS), US-KOREA Conference on Science, Technology and Entrepreneurship (UKC), Queens, NY, Aug. 1-4, 2018

39. Hernan, S., Rodriguez, K.L., Mercado, D., Davis, D., Thompson, C., Ko, T., Hwang, J.-H., Yung, Y., Lee, W.H., A Novel Molybdenum Disulfide Sponge Oil-Water Separator (MDSOS), 6th USA Science & Engineering Festival, Washington DC, April 6-7, 2018.

40. Rodriguez, K.L., Hwang, J.-H., Cho, H.J., Lee, W.H., A Novel Biopolymer-Modified Carbon Sensor for Simple and Rapid Detection of Lead in Tap Water. 15th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 5, 2018. *The poster was selected for Judge pick award in 2018 Showcase Winner in Engineering.

41. Curtis, D., Hwang, J-H., Y. Jung, Lee, W.H., A Novel 2D MoS2 Sponge Oil-Water Separator (MDSOS), 15th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 5, 2018

42. Hwang, J.-H., Wang, X., Jung, S., Son, Y., Cho, H.J., Lee, W.H., Enhanced electrochemical detection of multi-heavy metal ions using a biopolymer-coated planar carbon electrode, 2018 Sensors Application Symposium, IEEE, Seoul, Korea, March 12-14, 2018

43. Hwang, J.-H., Wang, X., Jung, S., Son, Y., Cho, H.J., Lee, W.H., A Bi-Sn Nanoporous Structured Sensor System for In Situ Heavy Metals Detection in Groundwater, PITTCON 2016, Orlando, FL, Feb. 26–Mar. 1, 2018

44. Hwang, J.-H., Lee, W.H., Electricity generation from oily bilgewater using single microbial fuel cells (MFCs), Materials Innovation for Sustainable Agriculture (MISA) 2017, Orlando, FL, Nov. 6-7, 2017.

45. Hwang, J.-H., Paynter, D.M., Lee, S.M., Lee, W.H., Electricity generation from oily wastewater using microbial fuel cells (MFCs), US-Korea Conference 2017: Korean-American Scientists and Engineers Association, Washington D.C, Hyatt Regency Crystal City, August 9-12, 2017. *The best presentation was selected as the UKC 2017 best poster award.

46. Hwang, J.-H., Church, J., Lee, S.-J., Lee, W.H., Integrated system using microalgae for wastewater treatment and sustainable biofuel production, ISIE-ISSST 2017: The 9th biennial conference of the International Society for Industrial Ecology (ISIE) and the 25th annual conference of the International Symposium on Sustainable Systems and Technology (ISSST), Chicago, IL, June 25-29, 2017.

47. Hwang, J.-H., Church, J., Lee, S.-J., Lee, W.H., Integrated System using Microalgae for Wastewater Treatment and Sustainable Biofuel Production, 2017 AEESP Research and Education Conference, Ann Arbor, MI, June 21-22, 2017.

48. Hwang, J.-H., Church, J., Lee, W.H., Renewable microalgal hydrogen production from synthetic wastewater, 2017 AEESP Research and Education Conference, Ann Arbor, MI, June 21-22, 2017.

49. Davis, T., Hwang, J.-H., Lee, W.H., Feasibility Test of sustainable energy production from oily liquid wastes, 14th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 6, 2017.

50. Hwang, J.-H., Lee, W.H., Renewable photobiological hydrogen production using green algae, Materials Innovation for Sustainable Agriculture (MISA) 2016, FL, Oct. 3-4, 2016.

51. Lee, M.-S., Hwang, J.-H., Jeon, B.-H., Continuous fermentation for bioethanol production using combined pretreatment of mixed microalgal biomass. 252nd American Chemical Society National Meeting, Philadelphia, PA, Aug. 21-25, 2016.

52. Church, J., McLean, R., Munshi, F., Hwang, J.-H., Maier, N., Rudolph, M., Lee, W.H., Algae Biofuel Osmosis Dewatering (ABODE): A novel process for biofuel feedstock generation and microalgae separation using forward osmosis, 4th USA Science & Engineering Festival, Washington DC, Apr. 16-17, 2016. *UCF P3 student team received a sustainable energy award.

53. McLean, R., Church, J., Hwang, J.-H., Lee, W.H., Sodium ion-effect on Chlorella vulgaris as a means of increasing lipid production for bioenergy, 13th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 7, 2016. *The presentation was selected for the 1st place 2016 Showcase Winner in Engineering, Computer Science and Optics II.

54. Harris, R., Hwang, J.-H., Lee, W.H., Photo-fermentation for Biological hydrogen production using organic wastes, 13th Annual Showcase of Undergraduate Research Excellence (SURE), University of Central Florida, April 7, 2016

55. Lee, S.-H., Hwang, J.-H., Kabra, A.N., Jeon, B.-H., Microbial reduction of perchlorate at high concentrations from aqueous medium using a bacterium Rhodococcus sp. YSPW03, 2nd Clear, Chuncheon, Korea, Oct 5-8, 2014.

56. Jeon, B.-H., Ji, M.-K., Salama, E.-S., Hwang, J.-H., Cultivation of freshwater microalgae species in wastewater with different abiotic factors, Korea Society of Clean Technology, Kyung-do resort, Yeosu, Korea, March 28-29, 2013.

57. Kondaveeti, S., Choi, K.S., Hwang, J.-H., Kakarla, R., Jeon, B.-H., Min, B., 2013. Green alga Scenedesmus as a substrate for electricity generation in microbial fuel cells. 1st Asia-Pacific International Society for Microbial Electrochemical Technologies Meeting, Harbin Institute of Technology, Harbin, China, Jan 13-15, 2013

58. Lee, S.-H., Hwang, J.-H., Abou-Shanab, R.A.I., Oh, S.C., Jeon, B.-H., Removal of perchlorate from aqueous solution by a novel strain (Rhodococcus sp. YSPW01) isolated from anaerobic digestor, 20th Advanced Ground Combat System Conference, Daejeon Convention Center (DCC), December 13, 2012.

59. Hwang, J.-H., Choi, J., Jeon, B.-H., Photo-heterotrophic hydrogen production by a microalga from acetate- and butyrate- enriched wastewater, International Conference on Hydrogen Production, Renaissance Seoul Hotel, June 26, 2012.

60. Lee, S.-H., Hwang, J.-H., Paeng, K.-J., Jeon, B.-H., Ammonium perchlorate removal from aqueous medium by a newly isolated bacterium Rhodococcus sp., The Korea Institute of Military Science and Technology, Gyeongju Hyundai Hotel, June 7-8, 2012.

61. Hwang, J.-H., Choi, J.-A., Abou-Shanab, R.A.I., Raghavulu, S.V., Salama, E-A., Dempsey, B.A., Jeon, B.-H., Influence of CO2 and light wavelength on the acceleration of microalgal biomass as raw materials for biodiesel production, 242nd American Chemical Society National Meeting, Denver, Colorado, Aug. 28-Sep. 01, 2011.

62. Choi, J.-A., Hwang, J.-H., Dempsey, B.A., Jeon, B.-H., Influence of ultrasonication on the fermentative bioenergy(ethanol/hydrogen) production from an algal biomass, Scenedesmus obliquus YSW15, 242nd American Chemical Society National Meeting, Denver, Colorado, Aug. 28-Sep. 01, 2011.

63. Choi, K.S., Hwang, J.-H., Ramesh, K., Jeon, B.-H., Min, B., Microalgae Scenedemus obliquus as an electron donor for electricity generation in microbial fuel cells (MFCs), 1st International conference on Green Environmental Technology 2011 (Korean Society of Environmental Engineers), Busan, Korea, August 21-24, 2011

64. Raghavulu S.V., Hwang, J.-H., Jeon, B.-H., Evaluate the influence of inorganic phosphate and micronutrients on biomass growth rate and lipid production using with microalgae, International Conference on Recent Advances in Mechanical Engineering, Dr. M.G.R Educational and Research Institute University Adayalampattu, Chennai – 600 095, Tamilnadu, India, April 21-22, 2011.

65. Choi, J.-A., Hwang, J.-H., Lee, S.-H., Jeon, B.-H., Ultrasonic pretreatment of Scenedesmus obliquus YSW15 biomass to improve the fermentative ethanol production, Korean Society of environmental engineers Fall Conference, Songdo Convensia, Dec 02-03, 2010

66. Hwang, J.-H., Choi, J.-A., Lee, S.-H., Jeon, B.-H., Fermentative hydrogen production using ultrasonicated fresh biomass of Scenedesmus obliquus YSW15, Korean Society of environmental engineers Fall Conference, Songdo Convensia, Dec 02-03, 2010.

67. Ji, M.-K., Yoon, H.-S., Hwang, J.-H., Choi, J., Jeon, B.-H., Nutrient Removal and Lipid Production in a Livestock Wastewater by Chlorella vulgaris YSW-04, Korean Society of environmental engineers Fall Conference, Songdo Convensia, Dec 02-03, 2010.

68. Hwang, J.-H., Choi, J.-A., Na, J.-G., Abou-Shanab, R.A.I., Oh, Y.-K., Jeon, B.-H., Hydrogen production from sulfate and ferrous enriched wastewater, Asian Biohydrogen Symposium and APEC Advanced Bio-Hydrogen Technology Conference, Feng Chia University, Taichung, November 15-20, 2010.

69. Hwang, J.-H., Choi, J.-A., Jeon, B.-H., Resolution of Water Shortage in the Future Society: A New Way of Wastewater Treatment using Algae, Chuncheon Global Water Forum, ladena resort, September 30-October 1, 2010.

70. Hwang, J.-H., Choi, J.-A., Ji, M.-K., Abou-Shanab, R.A.I., Jeon, B.-H., Nitrogen and phosphate removal by microalgae from livestock wastewater: newly isolated freshwater microalgae, Korean Society of environmental engineers Spring Conference, Jeju International Convention Center, May 06-07, 2010.

71. Hwang, J.-H., Abou-Shanab, R.A.I., Matter, I.A., Jeon, B.-H., Characterization and Identification of Lipid Producing Microalgal Species Isolated from Freshwater Lake and Livestock Wastewater, Korean Society of environmental engineers Spring Conference, Jeju International Convention Center, May 06-07, 2010.

72. Choi, J.-A., Hwang, J.-H., Abou-Shanab, R.A.I., Jeon, B.-H., Fermentative hydrogen production from microalgae cultivated in wastewater, Korean Society of environmental engineers Spring Conference, Jeju International Convention Center, May 06-07, 2010.

73. Hwang, J.-H., Choi, J.-A., Abou-Shanab, R.A.I., Jeon, B.-H., Feasibility of fermentative bio-hydrogen production from different organic wastes, The Korean Society for New and Renewable Energy Conference, Conference hall of Jeollabuk-do, November 25-27, 2009. *The presentation was selected for the 1st place 2009 Best article in KSNRE.

74. Hwang, J.-H., Choi, J.-A., Jeon, B.-H., Fermentative hydrogen production from rotten wastes, KSEE, Kim Dae-Jung convention hall, November 5-6, 2009.

75. Hwang, J.-H., Jeong, T.-Y., Kim, D.-J., Cha, G.-C., 2008 Characteristic of bacteria and Fermentative hydrogen at SO42- concentration and pH variation in anaerobic digestion system, Korea Society of Environ Engineers conference, Ulsan University, Korea, May, 2008. *The presentation was selected for the 2008 Best article, in KSEE.