Competitive adsorption of negatively charged ligands on oxide surfaces

Hingston, F. J.; Posner, A. M.; Quirk, J. P.

doi:10.1039/df9715200334

Cited by 234 publications

(163 citation statements)

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“…Total P content in wheat shoots increased when soil added As concentrations < 60 mg/kg, but decreased when added arsenic concentration > 80 mg/kg (P < 0.05). It has been reported that P and As exhibit similar physicochemical behavior in soils and they competed directly for the same sorption sites on soil particle surfaces (Hingston et al 1971). Therefore, increasing As concentrations are expected to cause release of phosphate and enhance the phosphate bioavailability in soil.…”

Section: Resultsmentioning

confidence: 99%

“…Arsenic and P are analogues, which exhibit similar physicochemical behavior in soils and competed directly for the same sorption sites on soil particle surfaces (Hingston et al 1971). Some researches reported that As sensitivity was intimately linked to P nutrition in plants, and applying P fertilizers could increase As availability in soils and enhanc plant uptake of As (Geng et al 2006, Wang and Duan 2009.…”

Section: Effects Of High Concentrations Of Soil Arsenic On the Growthmentioning

confidence: 99%

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Effects of high concentrations of soil arsenic on the growth of winter wheat (Triticum aestivum L) and rape (Brassica napus)

Liu¹,

Chen²,

Hu³

et al. 2012

PLANT SOIL ENVIRON

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Soil arsenic (As) levels are particularly high in parts of China, where wheat and rape are widely grown. Understanding the effects of As concentration on the growth of these two major crops is of significance for food production and security in China. A pot experiment was carried out to study the uptake of As and phosphorus (P), and the soil As bioavailability at different growth stages of wheat and rape. The results indicated that winter wheat was much more sensitive to As stress than rape. Wheat yields were elevated at low rates of As addition (< 60 mg/kg) but reduced at high rates of As concentrations (80-100 mg/kg); while the growth of rape hadn't showed significant responses to As addition. Phosphorus concentrations in wheat at jointing and ear sprouting stages increased with increasing soil As concentrations, and these increases were assumed to contribute a lot to enhanced growth of wheat at low As treatments. Arsenic did not significantly affect P concentrations in rape either. The highest As concentrations in wheat shoot and rape leaf were 8.31 and 3.63 mg/kg, respectively. Arsenic concentrations in wheat and rape grains did not exceed the maximum permissible limit for food stuffs of 1.0 mg/kg. When soil As concentration was less than 60 mg/kg, both wheat and rape could grow satisfactorily without adverse effects; when soil As concentration was 80-100 mg/kg, rape was more suitable to be planted than wheat.

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Section: Resultsmentioning

confidence: 99%

Section: Effects Of High Concentrations Of Soil Arsenic On the Growthmentioning

confidence: 99%

Effects of high concentrations of soil arsenic on the growth of winter wheat (Triticum aestivum L) and rape (Brassica napus)

Liu¹,

Chen²,

Hu³

et al. 2012

PLANT SOIL ENVIRON

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“…Common inorganic species include soluble selenate (Se(VI)), selenite (Se(IV)), insoluble elemental selenium (Se(O)), and various metal and organic selenides (Elrashidi et al, 1987;Masscheleyn et al, 1990). Selenite, which is stable under moderately reducing conditions, is soluble, but can strongly adsorb onto surfaces of common soil minerals and organic matter (Geering et al, 1968;Hingston et al, 1971;Hamdy et al, 1977;Balistrieri and Chao, 1987;Bar-Yosef and Meek, 1987;Neal et al, 1987;Christensen et al, 1989). Organo-selenium species include seleno-amino acids and volatile methylated Se compounds (Reamer and Zoller, 1980;Zieve and Peterson, 1981 ;Doran, 1982;Thompson-Eagle and Frankenberger, 1989).…”

Section: Introductionmentioning

confidence: 99%

Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir

Zawislanski¹

1990

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“…Both anions are able to occupy binding sites by ligand exchange and anion exchange with OH -and previously adsorbed anions in soil systems. This assumption is inferred from the results by Nagarajah et al (1968Nagarajah et al ( , 1970 and Hingston et al (1968Hingston et al ( , 1971) for kaolinite and oxide surfaces. sulfate was added in concentration ranging from 1 to 400 µg mL -1 in the presence of 5 levels of phosphate concentration from 50 to 400 µg mL -1…”

Section: Resultsmentioning

confidence: 98%

Competitive Adsorption and Subsequent Desorption of Sulfate in the Presence of Various Anions in Soils

Hong¹,

Lee²,

Lee³

et al. 2016

Korean Journal of Soil Science and Fertilizer

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In this experiment we investigated the influence of various anions including oxalic acid encountered as solution phase in soil on the adsorption and desorption of sulfate in Chungwon Bt soil. The effect of chloride and nitrate on the adsorption of sulfate was not significant, suggesting that sulfate was better able to compete for adsorption sites at concentrations studied, in contrast to the large reduction in the amount of chloride adsorbed in the presence of sulfate. The results of competition for sorption sites between sulfate and anion showed that the simultaneous presence of two anions in solution was effective in reduction of competing anion at a maximum value of adsorption, due to the similar adsorption mechanism for anion competition. Therefore, the variation in the buffer power of the acids will produce a change in the strength and amount of adsorption and the competitive ability.

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Competitive adsorption of negatively charged ligands on oxide surfaces

Cited by 234 publications

References 0 publications

Effects of high concentrations of soil arsenic on the growth of winter wheat (Triticum aestivum L) and rape (Brassica napus)

Effects of high concentrations of soil arsenic on the growth of winter wheat (Triticum aestivum L) and rape (Brassica napus)

Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir

Competitive Adsorption and Subsequent Desorption of Sulfate in the Presence of Various Anions in Soils

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