Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Effect of pectin on adsorption of Cu(II) by two variable-charge soils from southern China

  • 232 Accesses

  • 9 Citations

Abstract

The influence of pectin on Cu(II) adsorption by two variable-charge soils (an Oxisol and an Ultisol) was investigated. Pectin increased the adsorption, and the extent of adsorption increased linearly with the dose of pectin, being greater in the Oxisol than that in the Ultisol because the adsorption of pectin by the Oxisol was greater. Both Langmuir and Freundlich equations fitted the adsorption isotherms of Cu(II) for both soils well. The fitting parameters of both equations indicated that pectin increased not only the adsorption capacity of the soils for Cu(II) but also the adsorption strength of Cu(II). The effect of pectin decreased with rising pH in the pH range 3.5–6.0, although the extent of electrostatic adsorption of Cu(II) by both soils was markedly greater over the pH range. Fourier-transformed infrared spectroscopy analysis and zeta potential measurement of soil colloids indicated that adsorption of pectin by the soils made the negative charge on both soils more negative, which was responsible for the increase in the electrostatic adsorption of Cu(II) induced by the addition of pectin. In conclusion, pectin-enhanced adsorption of Cu(II) especially at low pH would be beneficial to the soils as it would decrease the activity and mobility of Cu(II) in acidic variable-charge soils.

This is a preview of subscription content, log in to check access.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

References

  1. Agbenin JO, Olojo LA (2004) Competitive adsorption of copper and zinc by a Bt horizon of a savanna Alfisol as affected by pH and selective removal of hydrous oxides and organic matter. Geoderma 119:85–95

  2. Ainsworth CC, Pilon JL, Gassman PL, Van Der Sluys WG (1994) Cobalt, cadmium, and lead sorption to hydrous iron oxide: residence time effect. Soil Sci Soc Am J 58:1615–1623

  3. Backes CA, McLaren RG, Rate AW, Swift RS (1995) Kinetics of cadmium and cobalt desorption from iron and manganese oxides. Soil Sci Soc Am J 59:778–785

  4. Bargar JR, Persson P, Brown GE Jr (1999) Outer-sphere adsorption of Pb(II)-EDTA on goethite. Geochim Cosmochim Acta 63:2957–2969

  5. Brümmer GW, Gerth J, Tiller KG (1988) Reaction kinetics of the adsorption and desorption of nickel, zinc and cadmium by goethite. I. Adsorption and diffusion of metals. J Soil Sci 39:37–51

  6. Clemente R, Bernal MP (2006) Fractionation of heavy metals and distribution of organic carbon in two contaminated soils amended with humic acids. Chemosphere 64:1264–1273

  7. Collins CR, Ragnarsdottir KV, Sherman DM (1999) Effect of inorganic and organic ligands on the mechanism of cadmium sorption to goethite. Geochim Cosmochim Acta 63:2989–3002

  8. Fernández-Calviño D, Solver-Rovira P, Polo A, Arias-Estévez M, Plaza C (2010) Influence of humified organic matter on copper behavior in acid polluted soils. Environ Pollut 158:3634–3641

  9. Ferreira ML, Gschaider ME (2001) Theoretical and experimental study of Pb2+ and Hg2+ adsorption on biopolymers: 1. Theoretical study. Macromol Biosci 1:233–248

  10. Fitts JP, Persson P, Brown GE Jr (1999) Structure and bonding of Cu(II)–glutamate complexes at the γ-Al2O3–water interface. J Colloid Interface Sci 220:133–147

  11. Guo XJ, Duan HY, Wang C, Huang XS (2014) Characteristics of two calcium pectinates prepared from citrus pectin using rither calcium chloride or calcium hydroxide. J Agri Food Chem 62:6354–6361

  12. Harter RD, Naidu R (1995) Role of metal-organic complexation in metal sorption by soils. Adv Agron 55:219–263

  13. Huang ZY, Boubriak I, Osborne DJ, Dong M, Gutterman Y (2008) Possible role of pectin-containing mucilage and dew in repairing embryo DNA of seeds adapted to desert conditions. Ann Bot 101:277–283

  14. Jiang J, Xu RK, Wang Y, Zhao AZ (2008) The mechanism of chromate sorption by three variable charge soils. Chemosphere 71:1469–1475

  15. Komy ZR, Shaker AM, Heggy SEM, El-Sayed MEA (2014) Kinetic study for copper adsorption onto soil minerals in the absence and presence of humic acid. Chemosphere 99:117–124

  16. Lothenbach B, Furrer G, Scharli H, Schulin R (1999) Immobilization of zinc and cadmium by montmorillonite compounds: effects of aging and subsequent acidification. Environ Sci Technol 33:2945–2952

  17. Ma L, Xu RK, Jiang J (2010) Adsorption and desorption of Cu(II) and Pb(II) in paddy soils cultivated for different years in subtropical China. J Environ Sci 22:689–695

  18. McLaren RG, Backes CA, Rate AW, Swift RS (1998) Cadmium and cobalt desorption kinetics from soil clays: effect of sorption period. Soil Sci Soc Am J 62:332–337

  19. Naidu R, Kookana RS, Sumner ME, Harter RD, Tiller KG (1997) Cadmium sorption and transport in variable charge soils: a review. J Environ Qual 26:602–617

  20. Naidu R, Sumner ME, Harter RD (1998) Sorption of heavy metals in strongly weathered soil: an overview. Environ Geochem Health 20:5–9

  21. Silveira MLA, Alleoni LRF, Camargo OA, Casagrande JC (2002) Copper adsorption in oxidic soils after removal of organic matter and iron oxides. Commun Soil Sci Plant Anal 33:3581–3592

  22. Wang GY, Michailides TJ, Bostock RM (1997) Improved detection of polygalacturonase activity due to Mucor piriformis with a modified dinitrosalicylic acid reagent. Phytopathology 87:161–163

  23. Wehr JB, Blamey FPC, Kopittke PM, Menzies NW (2010) Comparative hydrolysis and sorption of Al and La onto plant cell wall material and pectic materials. Plant Soil 332:319–330

  24. Xu RK (2013) Interaction between heavy metals and variable charge surfaces. In: Xu JM, Sparks DL (eds) Molecular environmental soil science. Springer, Dordrecht, pp 193–228

  25. Xu RK, Xiao SC, Xie D, Ji GL (2006) Effects of phthalic and salicylic acids on Cu(II) adsorption by variable charge soils. Biol Fertil Soils 42:443–449

  26. Zhong K, Xu RK, Zhao AZ, Jiang J, Li H (2010) Adsorption and desorption of Cu(II) and Cd(II) in the tropical soils during pedogenesis in the basalt from Hainan, China. Carbon Evap 25:27–34

Download references

Acknowledgments

This study was supported by the National Natural Science Foundation of China (41230855 and 31270664).

Author information

Correspondence to Ren-kou Xu.

Additional information

Responsible editor: Zhihong Xu

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Wang, R., Zhu, X., Qian, W. et al. Effect of pectin on adsorption of Cu(II) by two variable-charge soils from southern China. Environ Sci Pollut Res 22, 19687–19694 (2015). https://doi.org/10.1007/s11356-015-5150-y

Download citation

Keywords

  • Adsorption
  • Cu(II)
  • Pectin
  • Surface charge
  • Surface complexes
  • Variable-charge soil