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Environmental friendly activated carbon with microporous structures have been synthesized by surface modification procedure using concentrated H2SO4. Various factors affecting the adsorption properties of methylene blue (MB) dye onto algae—raw Enteromorpha intestinalis (REI) and sulphuric acid modified E. intestinalis (SMEI)—have been discussed, such as time, pH, biosorbent dose, MB dye concentration,...
Loess soil, a relatively abundant and inexpensive material in China, is being investigated as an adsorbent to remove heavy metals from aqueous solutions. Pb(II), Cu(II) and Zn(II) can be removed very efficiently with loess soil, and the adsorption capacity of loess soil towards those three heavy metal ions follows the order: Pb(II) (270.3 mg g-1)> Zn(II) (215.9 mg g-1)> Cu(II) (108.9 mg g-1)...
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