Browsing Center for Advanced Materials by Author "Han, Dong Suk"
Now showing items 1-20 of 23
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Control of the antagonistic effects of heat-assisted chlorine oxidative degradation on pressure retarded osmosis thin film composite membrane surface
Ralph Rolly, Gonzales; Abdel-Wahab, Ahmed; Han, Dong Suk; Matsuyama, Hideto; Phuntsho, Sherub; Shon, Ho Kyong... more authors ... less authors ( Elsevier , 2021 , Article)During pressure retarded osmosis (PRO) operation, thin film composite (TFC) membranes are continuously exposed to chemicals present in the stream that can deteriorate the membrane's selective layer with exposure time. ... -
Effect of Fe/N-doped carbon nanotube (CNT) wall thickness on CO2 conversion: A DFT study
Sun Hee, Yoon; Park, Hyunwoong; Elbashir, Nimir O.; Han, Dong Suk ( Elsevier , 2020 , Article)Many researches on CO2 adsorption using carbon nanotubes (CNTs) have been actively studied, but experimental and theoretical studies on CO2 conversion are still in demand. In particular, the effect of CNT wall thickness ... -
Electrocatalytic arsenite oxidation in bicarbonate solutions combined with CO2 reduction to formate
Wonjung, Choi; Kim, Minju; Kim, Byeong-ju; Park, Yiseul; Han, Dong Suk; Hoffmann, Michael R.; Park, Hyunwoong... more authors ... less authors ( Elsevier , 2020 , Article)Sunlight-driven water-energy nexus technologies are receiving increasing attention. This study presents a hybrid electrochemical system that catalyzes the oxidation of As(III) to As(V) with a nanoparticulate TiO2 electrocatalyst ... -
Electrocatalytic arsenite oxidation using iron oxyhydroxide polymorphs (α-, β-, and γ-FeOOH) in aqueous bicarbonate solution
Byung Guk, Kim; Park, Jiyeon; Choi, Wonjung; Han, Dong Suk; Kim, Jungwon; Park, Hyunwoong... more authors ... less authors ( Elsevier , 2020 , Article)α-, β-, and γ-FeOOH polymorphs have been synthesized and used for electrocatalytic As(III) oxidation into less toxic As(V) in aqueous bicarbonate solution. As-synthesized FeOOH electrodes exhibit unique crystalline structures ... -
Facile and Novel LiAlO2 Film Electrodes for Energy Efficient Li recovery from Seawater Reverse Osmosis (SWRO) Brine
Hafsa, Umme; Zavahir, Sifani; ElMakki, Tasneem; Ahmad, Zubair; Han, Dong Suk ( Qatar University Press , 2021 , Poster)Concentration of Li in seawater is too low at 0.17 ppm despite its high content altogether with a reported 230 billion tons. Hence, seawater is not a practical source to recover Li from; Li is largely extracted by solar ... -
Facile Electrochemical Synthesis of Highly Efficient Copper-Cobalt Oxide Nanostructures for Oxygen Evolution Reactions
Nath, Narayan Chandra Deb; Jeong, Hye Won; Han, Dong Suk; Park, Hyunwoong; Lee, Jae Joon ( Electrochemical Society , 2020 , Article)Nanostructured copper-cobalt oxide (CuxCo3-xO4, CCO) electrodes are grown directly on conducting substrates via electrochemical deposition; then, various factors (e.g., oxygen vacancies, electrochemically active surface ... -
In Situ-Generated Reactive Oxygen Species in Precharged Titania and Tungsten Trioxide Composite Catalyst Membrane Filters: Application to As(III) Oxidation in the Absence of Irradiation
Park, Jiyeon; Lim, Jonghun; Park, Yiseul; Han, Dong Suk; Shon, Ho Kyong; Hoffmann, Michael R.; Park, Hyunwoong... more authors ... less authors ( American Chemical Society (ACS) , 2020 , Article)This study demonstrates that in situ-generated reactive oxygen species (ROSs) in prephotocharged TiO2 and WO3 (TW) composite particle-embedded inorganic membrane filters oxidize arsenite (As(III)) into arsenate (As(V)) ... -
Ion-Enhanced Conversion of CO2 into Formate on Porous Dendritic Bismuth Electrodes with High Efficiency and Durability
Piao, Guangxia; Yoon, Sun Hee; Han, Dong Suk; Park, Hyunwoong ( Wiley-VCH Verlag , 2019 , Article)Facile synthesis of efficient electrocatalysts that can selectively convert CO2 to value-added chemicals remains a challenge. Herein, the electrochemical synthesis of porous Bi dendrite electrodes and details of their ... -
Ion-imprinted membranes for lithium recovery: A review
Sifani, Zavahir; Riyaz, Najamus Sahar; Elmakki, Tasneem; Tariq, Haseeb; Ahmad, Zubair; Chen, Yuan; Park, Hyunwoong; Ho, Yeek-Chia; Shon, Ho Kyong; Han, Dong Suk... more authors ... less authors ( Elsevier , 2024 , Article)This review critically examines the effectiveness of ion-imprinted membranes (IIMs) in selectively recovering lithium (Li) from challenging sources such as seawater and brine. These membranes feature customized binding ... -
Lithium capture in seawater reverse osmosis (SWRO) brine using membrane-based capacitive deionization (MCDI) system
Azam, Reem; ElMakki, Tasneem; Zavahir, Sifani; Ahmad, Zubair; Hijós, Gago Guillermo; Han, Dong Suk... more authors ... less authors ( Qatar University Press , 2021 , Poster)Lithium-battery based industries including vehicles, electronics, fusion and thermonuclear, consume lithium rapidly, which raises the need for developing a lithium recovery system. Lithium global market consumption in 2016 ... -
Membrane Distillation Crystallization Hybrid Process for Zero Liquid Discharge in QAFCO Plant
Gulied, Mona; Zavahir, Sifani; Elmakki, Tasneem; Qiblawey, Hazim; Hameed, Bassim; Han, Dong Suk... more authors ... less authors ( Qatar University Press , 2021 , Poster)Qatar fertilizer company (QAFCO) is one of the world’s largest single site producer of ammonia and urea with production capacity of 12,900 metric tons per day. Currently, QAFCO faces major challenges in terms of water ... -
Pyrite (FeS2)-supported ultrafiltration system for removal of mercury (II) from water
Han, Dong Suk; Solayman, Kawsher M.D.; Shon, Ho Kyong; Abdel-Wahab, Ahmed ( Springer , 2021 , Article)This study investigated the Hg(II) removal efficiencies of the reactive adsorbent membrane (RAM) hybrid filtration process, a removal process that produces stable final residuals. The reaction mechanism between Hg(II) and ... -
Recent advances on humic acid removal from wastewater using adsorption process
Alomar, Tamara; Qiblawey, Hazim; Almomani, Fares; Al-Raoush, Riyadh I.; Han, Dong Suk; Ahmad, Nasir M.... more authors ... less authors ( Elsevier , 2023 , Article Review)Humic acid (HA) is a component of natural organic matter (NOM) with a high molecular weight and high complexity. The presence of humic acid in water raises serious concerns due to its toxicity and ability to form carcinogenic ... -
Reduced titania nanorods and Ni–Mo–S catalysts for photoelectrocatalytic water treatment and hydrogen production coupled with desalination
Seonghun, Kim; Han, Dong Suk; Park, Hyunwoong ( Elsevier , 2020 , Article)This study presents a ternary hybrid solar desalination process coupled with photoelectrocatalytic water treatment and H2 production in a single device. The desalination of brackish water in the desalination cell is initiated ... -
A review on lithium recovery using electrochemical capturing systems
Sifani, Zavahir; Elmakki, Tasneem; Gulied, Mona; Ahmad, Zubair; Al-Sulaiti, Leena; Shon, Ho Kyong; Chen, Yuan; Park, Hyunwoong; Batchelor, Bill; Han, Dong Suk... more authors ... less authors ( Elsevier , 2021 , Article Review)Resource recovery from natural reserves is appealing and Li extraction from different brines is in the forefront. Li extraction by membranes is reviewed in the literature much more than electrochemical processes. However, ... -
Salinity gradient energy generation by pressure retarded osmosis: A review
Ralph Rolly, Gonzales; Abdel-Wahab, Ahmed; Adham, Samer; Han, Dong Suk; Phuntsho, Sherub; Suwaileh, Wafa; Hilal, Nidal; Shon, Ho Kyong... more authors ... less authors ( Elsevier B.V. , 2021 , Article)Pressure retarded osmosis (PRO) has gained attention due to its use as a salinity gradient energy-generating membrane process. This process can convert difference in salinity between two streams into energy as it allows ... -
Sanitation and dewatering of human urine via membrane bioreactor and membrane distillation and its reuse for fertigation
Federico, Volpin; Jiang, Jiaxi; El Saliby, Ibrahim; Preire, Mathilde; Lim, Sungil; Hasan Johir, Md Abu; Cho, Jaeweon; Han, Dong Suk; Phuntsho, Sherub; Shon, Ho Kyong... more authors ... less authors ( Elsevier , 2020 , Article)Source separation and recovery of human urine have often been proposed as an effective way to achieve a more sustainable waste-to-resource cycle. Its high density of available macronutrients (N–P–K) in urine makes it an ... -
Simultaneous CO2 treatment and blue energy generation from wasted industrial streams
Elmakki, Tasneem; Zavahir, Sifani; Gulied, Mona; Azam, Reem; Peter Kasak, Peter; Popelka, Anton; Han, Dong Suk... more authors ... less authors ( Qatar University Press , 2021 , Poster)In the last decade, there has been an increased global need for finding bright solutions to tackle industrial wastes and emissions release. Herein, this work explores the utilization of a compact Reverse Electrodialysis ... -
Standalone photoconversion of CO2 using Ti and TiOx-sandwiched heterojunction photocatalyst of CuO and CuFeO2 films
Seung Yo, Choi; Yoon, Sun Hee; Kang, Unseock; Han, Dong Suk; Park, Hyunwoong ( Elsevier , 2021 , Article)Artificial photoconversion of carbon dioxide to value-added chemicals remains a challenge. In this work, we synthesize heterojunction copper oxide and copper iron oxide (CuO/CuFeO2; CFO) films on transparent conducting ... -
Submerged module of outer selective hollow fiber membrane for effective fouling mitigation in osmotic membrane bioreactor for desalination
Van Huy, Tran; Phuntsho, Sherub; Han, Dong Suk; Dorji, Ugyen; Zhang, Xiwang; Shon, Ho Kyong... more authors ... less authors ( Elsevier , 2020 , Article)This paper investigated the membrane fouling mitigation efficacy and performance of a home-made submerged module containing outer selective hollow fiber thin film composite forward osmosis (OSHF TFC FO) membrane in osmosis ...