DOI: 10.1016/j.watres.2017.11.024
Scopus记录号: 2-s2.0-85034099445
论文题名: Real-time evaluation of natural organic matter deposition processes onto model environmental surfaces
作者: Li W. ; Liao P. ; Oldham T. ; Jiang Y. ; Pan C. ; Yuan S. ; Fortner J.D.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 129 起始页码: 231
结束页码: 239
语种: 英语
英文关键词: Adsorption
; Deposition
; Environmental surfaces
; NOM
; QCM-D
; Release
Scopus关键词: Adsorption
; Alumina
; Amino acids
; Biogeochemistry
; Deposition
; Deposition rates
; Electrolytes
; Hydroxyapatite
; Iron oxides
; Isotherms
; Magnetite
; Organic compounds
; Positive ions
; Quartz crystal microbalances
; Silica
; Vapor deposition
; Viscoelasticity
; Electrolyte compositions
; Environmental surfaces
; Langmuir isotherm models
; Natural organic matters
; Quartz crystal microbalance with dissipation monitoring
; Release
; Suwannee River fulvic acid
; Suwannee river humic acid
; Aluminum oxide
; adlayer
; aluminum oxide
; calcium ion
; divalent cation
; electrolyte
; fulvic acid
; humic acid
; hydroxyapatite
; iron oxide
; magnesium ion
; natural organic matter
; polystyrene
; silicon dioxide
; surface water
; benzopyran derivative
; fulvic acid
; polystyrene derivative
; water
; adsorption
; aluminum oxide
; aqueous solution
; electrolyte
; fulvic acid
; humic acid
; iron oxide
; organic matter
; quartz
; real time
; viscoelasticity
; adsorption
; aqueous solution
; Article
; chemical composition
; chemical interaction
; chemical structure
; concentration (parameters)
; environmental monitoring
; environmental release
; evaluation study
; ionic strength
; isotherm
; molecular weight
; pH
; priority journal
; quartz crystal microbalance
; river
; surface charge
; surface property
; viscoelasticity
; waste water management
; adsorption
; chemistry
; humic substance
; surface property
; Adsorption
; Aluminum Oxide
; Benzopyrans
; Electrolytes
; Humic Substances
; Polystyrenes
; Quartz Crystal Microbalance Techniques
; Rivers
; Silicon Dioxide
; Surface Properties
; Water
英文摘要: Natural organic matter (NOM) is ubiquitous in aqueous systems and dynamically partitions onto/from environmental surfaces. However, such interfacial processes have not been uniformly quantified in situ and in real time. In this work, adsorption and deposition processes of Suwannee River humic acid (SRHA) and Suwannee River fulvic acid (SRFA), as model NOM, were evaluated for a series of environmentally relevant interfaces. Real-time, interfacial phenomenon, including deposition, release, and adlayer viscoelastic properties, were quantified over a variety of water chemistries via quartz crystal microbalance with dissipation monitoring (QCM-D). Specifically, adlayer mass and deposition rates of SRHA and SRFA were evaluated as a function of NOM concentration/molecular weight (fraction), pH, electrolyte composition (type and concentration), and collector surface type. For these, the adsorption of SRHA onto aluminum oxide (Al2O3) and polystyrene (PS) surfaces follows the Langmuir isotherm model. Rapid, near-monolayer formation of SRHA/SRFA adlayers were observed on Al2O3, hydroxyapatite (HAP), and poly (L-lysine) (PLL) surfaces, but not on PS or iron oxide (Fe3O4) surfaces. The presence of divalent cations (Ca2+/Mg2+) at relatively low concentrations (0.5–5.0 mM) significantly enhances the mass of SRHA/SRFA deposited onto the surfaces of silica (SiO2), Al2O3, and PS. Viscoelastic properties of the adsorbed layer based on the ratio of dissipation to frequency revealed a relatively unique adlayer structure for SRHA in the presence of 5.0 mM Ca2+. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113110
Appears in Collections: 气候减缓与适应
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作者单位: Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States; State Key Lab of Biogeology and Environmental Geology, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, China; School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
Recommended Citation:
Li W.,Liao P.,Oldham T.,et al. Real-time evaluation of natural organic matter deposition processes onto model environmental surfaces[J]. Water Research,2018-01-01,129