| DOI: | 10.1002/2015GL064795
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| 论文题名: | Zeta potential in intact natural sandstones at elevated temperatures |
| 作者: | Vinogradov J.; Jackson M.D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8614
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| EISSN: | 1944-8345
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| 出版年: | 2015
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| 卷: | 42, 期:15 | | 起始页码: | 6287
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| 结束页码: | 6294
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| 语种: | 英语
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| 英文关键词: | elevated temperature
; intact sandstones
; pH
; potable water, seawater
; surface charge
; zeta potential
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| Scopus关键词: | pH
; Potable water
; Sandstone
; Surface charge
; Temperature
; Temperature distribution
; Zeta potential
; Elevated temperature
; High ionic strength
; Increasing temperatures
; Intact sandstone
; Low ionic strength
; Measurements of
; Temperature dependence
; Ionic strength
; magnitude
; numerical model
; pH
; sandstone
; seawater
; sodium chloride
; temperature effect
|
| 英文摘要: | We report measurements of the zeta potential of natural sandstones saturated with NaCl electrolytes of varying ionic strengths at temperatures up to 150°C. The zeta potential is always negative but decreases in magnitude with increasing temperature at low ionic strength (0.01 M) and is independent of temperature at high ionic strength (0.5 M). The pH also decreases with increasing temperature at low ionic strength but remains constant at high ionic strength. The temperature dependence of the zeta potential can be explained by the temperature dependence of the pH. Our findings are consistent with published models of the zeta potential, so long as the temperature dependence of the pH at low ionic strength is accounted for and can explain the hitherto contradictory results reported in previous studies. ©2015. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940452263&doi=10.1002%2f2015GL064795&partnerID=40&md5=c56beb000b1f3eb344dc7a29e3a63049
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8230
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Earth Science and Engineering, Imperial College London, London, United Kingdom
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| Recommended Citation: | |
Vinogradov J.,Jackson M.D.. Zeta potential in intact natural sandstones at elevated temperatures[J]. Geophysical Research Letters,2015-01-01,42(15).
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