Thermodynamics of Adsorption from Solutions. IV. Temperature Dependence of Adsorption.

Bartell, F. E.; Thomas, T. L.; Fu, Ying

doi:10.1021/j150492a005

Cited by 66 publications

(32 citation statements)

References 4 publications

(4 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Equation (6) shows that the sign of the enthalpy of adsorption is determined by the sign of the enthalpy of solution, as was pointed out by Kiraly and many other authors [50][51][52]. This is also true for the studied adsorbates, since for almost all the cases 21 h w is negative.…”

Section: The Integral Enthalpy Of Adsorptionsupporting

confidence: 66%

Molecular properties and intermolecular forces—factors balancing the effect of carbon surface chemistry in adsorption of organics from dilute aqueous solutions

Terzyk¹

2004

Journal of Colloid and Interface Science

107

View full text Add to dashboard Cite

Section: The Integral Enthalpy Of Adsorptionsupporting

confidence: 66%

Molecular properties and intermolecular forces—factors balancing the effect of carbon surface chemistry in adsorption of organics from dilute aqueous solutions

Terzyk¹

2004

Journal of Colloid and Interface Science

107

View full text Add to dashboard Cite

“…Although it might be expected that at low temperatures adsorption kinetics would slow, these results suggest that adsorption may instead be under thermodynamic control. Adsorption is an exothermic process (Bartell et al 1951), and thus it is expected that equilibrium adsorption would be increased at low temperatures. In the refrigerated samples, all size fractions of Fe demonstrate progressive losses, indicating that adsorption is the dominant process changing the metal concentration of the seawater sample at cold temperatures.…”

Section: Fitzsimmons and Boyle Go-flo And Vanes Intercalibration 444mentioning

confidence: 99%

An intercalibration between the GEOTRACES GO‐FLO and the MITESS/Vanes sampling systems for dissolved iron concentration analyses (and a closer look at adsorption effects)

Fitzsimmons

Boyle

2012

Limnology & Ocean Methods

View full text Add to dashboard Cite

With John Martin's discovery that iron could be a limiting nutrient in phytoplankton growth (Martin and Fitzwater 1988), marine trace metal biogeochemistry has evolved, with more fieldwork devoted to obtaining trace metal samples, more groups participating in trace metal investigations, and increasing inclusion of trace metal parameters in marine models of nutrient and climate cycles. In 2003, the international GEOTRACES program was founded, which aimed to establish global trace element distributions and quantify the fluxes and processes that affect these distributions under variable hydrographic and biogeochemical regimes. The positive international response to this program and the monetary commitment for cruises made by so many countries is a testament to the maturation of the trace metal field.As interest in trace metal biogeochemistry has grown, the technology associated with collecting uncontaminated seawater samples and analyzing low metal concentrations in seawater's complex matrix has developed as well. However, in response to the limited calibration of the now numerous sample collection, handling, and analytical methods used in the community, an intercalibration committee was established from the inception of the GEOTRACES program to lead and oversee these comparison efforts. The power of an international collaboration is the ability to share the manpower and monetary responsibility for collecting and analyzing globally, but the comparison is only as strong as the many methods can intercalibrate.Depending on the measurement and metal of interest, there are many points at which analytical and sampling offsets can occur: precleaning (filters, bottles), sample collection (samplers, hydrowire), sample treatment (filtration, handling, acidification), sample processing (leaching, pre-concentra- An intercalibration between the GEOTRACES GO-FLO and the MITESS/Vanes sampling systems for dissolved iron concentration analyses (and a closer look at adsorption effects) AbstractAn intercalibration of dissolved iron (dFe) concentrations was conducted from samples collected on the GEO-TRACES Pacific Intercalibration cruise using two different sampling devices: the GEOTRACES GO-FLO rosette system and MITESS/Vane samplers. At each depth, the dFe concentrations were identical within analytical error, except at 500 m where contamination in one bottle is suspected. dFe adsorption kinetics to bottle walls was also investigated. Over 29 h, 18% of the dFe adsorbed to the walls of 1 L bottles, whereas over 15 h, 19% adsorbed to the walls of 250 mL bottles, suggesting a relationship between dFe adsorption and sample bottle surface area to volume ratio. Contrary to expectations that refrigeration would slow adsorption, cold 250 mL bottles demonstrated a 29% dFe loss over 15 h compared to 19% loss at room temperature. Finally, we tested the hypothesis that the decreasing dFe observed in successive sub-sampled bottles from the (unacidified) SAFe D1 tank was due not only to adsorption but also to pH-dependent Fe solubility changes ...

show abstract

“…Values of ln K • are obtained by plotting ln K d vs. C e and extrapolating C e to zero [15]. The standard entropy change ( S • ) is calculated using the following relationship:…”

Section: Experimental Data Analysismentioning

confidence: 99%

Sorption of copper(II) onto super-adsorbent of bentonite–polyacrylamide composites

Zhao

Zhang

Fan

et al. 2010

Journal of Hazardous Materials

225

View full text Add to dashboard Cite

Thermodynamics of Adsorption from Solutions. IV. Temperature Dependence of Adsorption.

Cited by 66 publications

References 4 publications

Molecular properties and intermolecular forces—factors balancing the effect of carbon surface chemistry in adsorption of organics from dilute aqueous solutions

Molecular properties and intermolecular forces—factors balancing the effect of carbon surface chemistry in adsorption of organics from dilute aqueous solutions

An intercalibration between the GEOTRACES GO‐FLO and the MITESS/Vanes sampling systems for dissolved iron concentration analyses (and a closer look at adsorption effects)

Sorption of copper(II) onto super-adsorbent of bentonite–polyacrylamide composites

Contact Info

Product

Resources

About