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ABSTRACT Three types of magnetic biochars (MBC1, MBC2, and MBC3) were synthesized from biochar using NaBH4 as a reducing agent of Fe(II) to Fe(0) to remove copper(II) ions from different… Click to show full abstract
ABSTRACT Three types of magnetic biochars (MBC1, MBC2, and MBC3) were synthesized from biochar using NaBH4 as a reducing agent of Fe(II) to Fe(0) to remove copper(II) ions from different wastewaters. Based on the research it was found that removal of copper(II) ions by MBC1 occurs with a yield of 99.8% for the concentration 50 mg/dm3 and decreases to 71.7% at 200 mg/dm3. The maximum pH sorption was found at pH 5. The highest correlation coefficient values (65.55 mg/g) were obtained for the Langmuir isotherm model. Application of 0.5 mol/dm3 HNO3 as a desorbing agent gives the highest desorption percentage 98.92%.
Journal Title: Separation Science and Technology
Year Published: 2018
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