Search Results - "Fortner, John"

Graphene oxides as nanofillers in polysulfone ultrafiltration membranes: Shape matters by Jiang, Yi, Zeng, Qingqing, Biswas, Pratim, Fortner, John D.

“…While a number of graphene oxide (GO) materials have been evaluated as nanofillers in ultrafiltration membranes, there remain outstanding questions regarding…”
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Graphene Oxides in Water: Correlating Morphology and Surface Chemistry with Aggregation Behavior by Jiang, Yi, Raliya, Ramesh, Fortner, John D, Biswas, Pratim

“…Aqueous aggregation processes can significantly impact function, effective toxicity, environmental transport, and ultimate fate of advanced nanoscale…”
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Formation, Aggregation, and Deposition Dynamics of NOM-Iron Colloids at Anoxic–Oxic Interfaces by Liao, Peng, Li, Wenlu, Jiang, Yi, Wu, Jiewei, Yuan, Songhu, Fortner, John D., Giammar, Daniel E.

“…The important role of natural organic matter (NOM)–Fe colloids in influencing contaminant transport, and this role can be influenced by the formation,…”
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Formation and Transport of Cr(III)-NOM-Fe Colloids upon Reaction of Cr(VI) with NOM-Fe(II) Colloids at Anoxic–Oxic Interfaces by Liao, Peng, Pan, Chao, Ding, Wenyu, Li, Wenlu, Yuan, Songhu, Fortner, John D, Giammar, Daniel E

“…Natural organic matter-iron (NOM-Fe) colloids are ubiquitous at anoxic–oxic interfaces of subsurface environments. Fe­(II) or NOM can chemically reduce Cr­(VI)…”
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Formation and stability of NOM-Mn(III) colloids in aquatic environments by Li, Qianqian, Xie, Lin, Jiang, Yi, Fortner, John D., Yu, Kai, Liao, Peng, Liu, Chongxuan

“…Soluble Mn(III) species stabilized by natural organic matter (NOM) plays a crucial role in a number of biogeochemical processes. To date, current understanding…”
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Cr(VI) Adsorption on Engineered Iron Oxide Nanoparticles: Exploring Complexation Processes and Water Chemistry by Pan, Zezhen, Zhu, Xiaoming, Satpathy, Anshuman, Li, Wenlu, Fortner, John D, Giammar, Daniel E

“…Surface-functionalized magnetic nanoparticles are promising adsorbents due to their large surface areas and ease of separation after contaminant removal. In…”
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Transport of Sulfide-Reduced Graphene Oxide in Saturated Quartz Sand: Cation-Dependent Retention Mechanisms by Xia, Tianjiao, Fortner, John D, Zhu, Dongqiang, Qi, Zhichong, Chen, Wei

“…We describe how the reduction of graphene oxide (GO) via environmentally relevant pathways affects its transport behavior in porous media. A pair of…”
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Free chlorine induced phototransformation of graphene oxide in water: Reaction kinetics and product characterization by An, Siyuan, Wu, Jiewei, Nie, Yao, Li, Wenlu, Fortner, John D.

“…[Display omitted] •Enhanced oxidation of water-stable GO in the presence of chlorine and UV light irradiation.•Rate constants are affected by Cl2, pH,…”
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Towards optimizing cobalt based metal oxide nanocrystals for hydrogen generation via NaBH4 hydrolysis by Kim, Changwoo, Lee, Seung Soo, Li, Wenlu, Fortner, John D.

“…[Display omitted] •H2 generation, via NaBH4 decomposition, is quantified as a function of Co-based (nano)material deminsion, shape, and composition (i.e…”
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Natural Organic Matter Stabilizes Carbon Nanotubes in the Aqueous Phase by Hyung, Hoon, Fortner, John D, Hughes, Joseph B, Kim, Jae-Hong

“…This study investigates the aqueous stability of multi-walled carbon nanotubes (MWNTs) in the presence of natural organic matter (NOM). MWNTs were readily…”
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In-situ sequestration of perfluoroalkyl substances using polymer-stabilized ion exchange resin by Liu, Chen, Chu, Jenna, Cápiro, Natalie L., Fortner, John D., Pennell, Kurt D.

“…Remediation of groundwater impacted by per- and polyfluoroalkyl substances (PFAS) is challenging due to the strength of the carbon-fluorine bond and the need…”
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Measurement and Surface Complexation Modeling of U(VI) Adsorption to Engineered Iron Oxide Nanoparticles by Pan, Zezhen, Li, Wenlu, Fortner, John D, Giammar, Daniel E

“…Surface-functionalized magnetite nanoparticles have high capacity for U­(VI) adsorption and can be easily separated from the aqueous phase by applying a…”
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In Situ Photocatalytic Synthesis of Ag Nanoparticles (nAg) by Crumpled Graphene Oxide Composite Membranes for Filtration and Disinfection Applications by Jiang, Yi, Liu, Di, Cho, Minjung, Lee, Seung Soo, Zhang, Fuzhong, Biswas, Pratim, Fortner, John D

“…Graphene oxide (GO) materials have demonstrated considerable potential in next-generation water treatment membrane-based technologies, which include…”
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Surface-Engineered Nanomaterials in Water: Understanding Critical Dynamics of Soft Organic Coatings and Relative Aggregation Density by Kim, Changwoo, Fortner, John D

“…Inorganic–organic nanocomposites, typically as an inorganic core with surface organic coating(s), have received interest as potential platform materials for…”
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Effect of reduced humic acid on the transport of ferrihydrite nanoparticles under anoxic conditions by Liao, Peng, Li, Wenlu, Wang, Dengjun, Jiang, Yi, Pan, Chao, Fortner, John D., Yuan, Songhu

“…Humic acid (HA) occurs ubiquitously in the subsurface environments and is well-known to play a critical role in the fate and transport of ferrihydrite…”
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Engineered Crumpled Graphene Oxide Nanocomposite Membrane Assemblies for Advanced Water Treatment Processes by Jiang, Yi, Wang, Wei-Ning, Liu, Di, Nie, Yao, Li, Wenlu, Wu, Jiewei, Zhang, Fuzhong, Biswas, Pratim, Fortner, John D.

“…In this work, we describe multifunctional, crumpled graphene oxide (CGO) porous nanocomposites that are assembled as advanced, reactive water treatment…”
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Harnessing the potential of in-situ, electrically generated microbubbles via nickel foam for enhanced, low energy membrane fouling control by Yun, Eun-Tae, Lee, Junseok, Lee, Seung Soo S, Hong, Seungkwan, Fortner, John D

“…For membrane-based, water treatment technologies, fouling remains a significant challenge for pressure-driven processes. While many antifouling strategies have…”
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Facile Aerosol Synthesis and Characterization of Ternary Crumpled Graphene–TiO2–Magnetite Nanocomposites for Advanced Water Treatment by Jiang, Yi, Wang, Wei-Ning, Biswas, Pratim, Fortner, John D

“…In this work, the synthesis and characterization of multifunctional crumpled graphene-based ternary nanocomposite photocatalysts for advanced water treatment…”
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Photoactive Polyethylenimine-Coated Graphene Oxide Composites for Enhanced Cr(VI) Reduction and Recovery by Kim, Changwoo, An, Siyuan, Lee, Junseok, Ghosh, Anushree, Zhong, Mingjiang, Fortner, John D

“…The application of positively charged polymers is a common treatment strategy for the sorption and separation of dissolved hexavalent chromium Cr­(VI). In…”
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Microbially Synthesized Repeats of Mussel Foot Protein Display Enhanced Underwater Adhesion by Kim, Eugene, Dai, Bin, Qiao, James B, Li, Wenlu, Fortner, John D, Zhang, Fuzhong

“…Mussels strongly adhere to a variety of surfaces by secreting byssal threads that contain mussel foot proteins (Mfps). Recombinant production of Mfps presents…”
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