Deposition and release kinetics of nano-TiO2 in saturated porous media: Effects of solution ionic strength and surfactants

Godinez, Itzel G.; Darnault, Christophe; Khodadoust, Amid P.; Bogdan, Dorin

doi:10.1016/j.envpol.2012.11.002

Cited by 66 publications

(34 citation statements)

References 41 publications

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“…The tests were also performed at a different SNP concentration (400 mg/L) and temperature (293 K). The range of ionic strength was selected based on the literature [73]. it is also worth mentioning that in high saline environments the electrostatic repulsion vanishes and the pure attractive interaction is achieved.…”

Section: Salinity Effectmentioning

confidence: 99%

Adsorption of silica nanoparticles onto calcite: Equilibrium, kinetic, thermodynamic and DLVO analysis

Monfared

Ghazanfari

Jamialahmadi

et al. 2015

Chemical Engineering Journal

123

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Section: Salinity Effectmentioning

confidence: 99%

Adsorption of silica nanoparticles onto calcite: Equilibrium, kinetic, thermodynamic and DLVO analysis

Monfared

Ghazanfari

Jamialahmadi

et al. 2015

Chemical Engineering Journal

123

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“…The NPs have active surfaces and can interact with molecules, organic material, biocolloids, and clays [13][14][15]. Consequently, NPs that enter the environment undergo surface interactions, producing very stable agglomerates, which are capable of migrating over long distances [16][17][18][19][20][21][22][23][24]. The toxicological risks that NPs can pose to human health and the environment have not been thoroughly examined yet [25].…”

Section: Introductionmentioning

confidence: 99%

Characterization of TiO2 nanoparticle suspensions in aqueous solutions and TiO2 nanoparticle retention in water-saturated columns packed with glass beads

Sygouni

Chrysikopoulos

2015

Chemical Engineering Journal

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“…Heavy metal oxides (e.g., TiO 2 ) have cytotoxicity and can release toxic ions. The problems are remarkable, especially for nanosized metal oxides (Jin et al 2011;Godinez et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of humic acid by amine-modified nanocellulose: an experimental and simulation study

Jebali

Behzadi

Rezapor

et al. 2014

Int. J. Environ. Sci. Technol.

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The purpose of this study was to evaluate the adsorption of humic acid (HA) by amine-modified nanocellulose. At first, nanocellulose was synthesized by acid hydrolysis, and then was modified by N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane. In the next step, HA and amine-modified nanocellulose were incubated at different conditions (pH, incubation time, temperature, and concentration). Furthermore, we used molecular dynamic (MD) simulation for observation of adsorption at molecular scale. For this purpose, HA and amine-modified nanocellulose were prepared by HyperChem software (Hypercube, Inc., USA), and inserted in Ascalaph Designer 1.8.69 software. Once equilibrium was reached, interactions were simulated for 1,000 ps. Finally, different parameters such as interaction energy, potential energy, and root-mean-square displacement (RMSD) were measured. This study demonstrated that the adsorption of HA was pH-, temperature-, dose-, and time-dependent. Based on simulation results, the interaction energy was reduced, but potential energy and RMSD were increased at the final stage of simulation, which indicated the adsorption of HA. The authors suggest amine-modified nanocellulose for removal of HA in wastewater.

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Deposition and release kinetics of nano-TiO2 in saturated porous media: Effects of solution ionic strength and surfactants

Cited by 66 publications

References 41 publications

Adsorption of silica nanoparticles onto calcite: Equilibrium, kinetic, thermodynamic and DLVO analysis

Adsorption of silica nanoparticles onto calcite: Equilibrium, kinetic, thermodynamic and DLVO analysis

Characterization of TiO2 nanoparticle suspensions in aqueous solutions and TiO2 nanoparticle retention in water-saturated columns packed with glass beads

Adsorption of humic acid by amine-modified nanocellulose: an experimental and simulation study

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