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Issue: No. 14 (2015): Part B - Natural Sciences
Section: Natural Sciences Issue (Vietnamese)
DOI: 10.52714/dthu.14.8.2015.229
Date Published: 15/08/2015
Online Published: 15/08/2015
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Bui, V. T., & Nguyen, T. T. T. (2015). An investigation of Cu2+ adsorption by bentonite and acid-activated bentonite: Effects of clay amount, initial concentration and adsorption isotherm. Dong Thap University Journal of Science, 14. https://doi.org/10.52714/dthu.14.8.2015.229

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An investigation of Cu2+ adsorption by bentonite and acid-activated bentonite: Effects of clay amount, initial concentration and adsorption isotherm

Van Thang Bui1, , Thi Thuy Trang Nguyen2
1 Dong Thap University
2 Student, Dong Thap University

Main Article Content

Abstract

Native bentonite minerals were treated with 4M H2SO4 and were used as adsorbents of Cu2+ion in water. The effects of adsorbent amount, initial concentration and temperature on the Cu2+ion adsorption were investiagted. The adsorption capacities of bentonite and acid-activated bentonite were respectively 34.36 mg/g and 39.21 mg/g. The negative value of ΔG and the positive of ΔS showed that the Cu2+ion adsorption onto bentonite and acid-activated bentonite was thermally evaporated and self-made.

Keywords

bentonite, activated bentonite, Cu2 ion, concentration, adsorption isotherm.

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

References

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