Temperature Effects on Boron Adsorption by Reference Minerals and Soils

Goldberg, Sabine; Förster, Helga; Heick, E. L.

doi:10.1097/00010694-199311000-00004

Cited by 44 publications

(20 citation statements)

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“…X-ray diffraction examination of minerals after B adsorption revealed that there was no crystalline phase detected at 25 "C for pH < There was a larger range in the pH at which B adsorption exhibited maximum values at 5 "C than at 25 "C. Increased B adsorption with decreasing temperature for gibbsite, goethite, and kaolinite was reported by Goldberg et al (24), who cited suggestions by Helferrich (25) that the highly specific adsorption of electrolyte ions is expected to be exothermic, implying an inner-sphere adsorption mechanism. Temperature affects the proportions and activities of the ions present in solution, the afiinity of the ions for the surface, or the charge and therefore the potential of the surface (26).…”

Section: Resultsmentioning

confidence: 74%

Coordination of Adsorbed Boron: A FTIR Spectroscopic Study

Su¹,

Suarez²

1995

Environ. Sci. Technol.

206

114

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W e studied B adsorption on amorphous aluminum and iron hydroxides, allophane, and kaolinite as a function of pH and initial B concentration. Boron adsorption lowered the point of zero charge of all four adsorbents, implying specific adsorption (inner-sphere complexation) of B. W e provided novel information on the coordination of B adsorbed at mineral-water interfaces by attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. The ATRFTlR spectra of interfacial B species were influenced by pH and mineral type. Strong trigonal B and weak tetrahedral B bands of the asymmetric stretching mode were observed on the difference spectra at pH 737 for amorphous iron hydroxide, whereas both strong trigonal and tetrahedral B bands were found at pH 4 0 . A strong IR band of asymmetric stretching of tetrahedral B shifted to higher frequencies in am-Fe(OH)s paste at both pH's relative to that of boric acid solution at pH 11. Trigonal B asymmetric stretching bands shifted to higher frequencies on the difference spectra for am-AI(OH)s and allophane at both pH's compared to that of boric acid solution at pH 7. Polymerization of B on mineral surfaces is shown to be possible. The results provide spectroscopic evidence that both B(OH)3 and B(OH)4-are adsorbed via a ligand exchange mechanism.

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Section: Resultsmentioning

confidence: 74%

Coordination of Adsorbed Boron: A FTIR Spectroscopic Study

Su¹,

Suarez²

1995

Environ. Sci. Technol.

206

114

View full text Add to dashboard Cite

show abstract

“…This result is in accord with our study, since the silica surface will be negatively charged over this pH range. Other studies of anion adsorption onto various oxides and soils [31][32][33][34] have generally demonstrated a trend for adsorption to decrease with increasing temperature over a wide pH range. Since soils generally carry a net negative charge at pH values above 4 these results are also in accord with our study.…”

Section: The Effect Of Temperature On Mellitic Acid Adsorptionmentioning

confidence: 97%

The influence of temperature on the adsorption of mellitic acid onto goethite

Angove

Wells

Johnson

2006

Journal of Colloid and Interface Science

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“…Increased dry matter and leaves probably resulted in more water uptake and higher B content at high temperatures ; this was expected since B uptake is passive . However, higher temperatures may promote B adsorption by the soil (Goldberg et al ., 1993) .…”

Section: Interaction Of Soil Temperature With Boronmentioning

confidence: 99%

Boron toxicity in barley (Hordeum vulgare L.) seedlings in relation to soil temperature

et al. 1995

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Boron (B) is an essential micronutrient in crop growth but its sufficiency range is narrow . Boron toxicity is a widespread problem in arid and semi-arid areas with cold weather . We investigated the effect of soil temperature (5, 10 and 15°C) on development of symptoms of B toxicity, plant growth and plant development, and on content and concentration of B in tissue of seedlings of four barley lines grown in soil with high level of available B (12 mg kg -1 ) . Visual symptoms of toxicity were first observed in the high B soil concentration treatment at 5 °C at 12 days after emergence . Concentration of B in tissue decreased with increasing soil-temperatures . There was no effect of soil temperature on B content or B concentration in plant tissue at the final sample (17 days after emergence) . High soil B reduced seedling and leaf emergence rates, although the final seedling emergence and number of leaves were unaffected. Barley lines differed in concentration of B in tissues and visual toxicity symptom development . Adaptation to high B was either through maintaining low tissue B concentration or through tolerance to high tissue B concentration . While the investigated range of temperature does influence B toxicity in barley seedlings, it remains to be determined whether it affects crop yield .

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Temperature Effects on Boron Adsorption by Reference Minerals and Soils

Cited by 44 publications

References 0 publications

Coordination of Adsorbed Boron: A FTIR Spectroscopic Study

Coordination of Adsorbed Boron: A FTIR Spectroscopic Study

The influence of temperature on the adsorption of mellitic acid onto goethite

Boron toxicity in barley (Hordeum vulgare L.) seedlings in relation to soil temperature

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