Tian, J.; Qu, J.; Wan, L.; Zhang, Q.; Gao, H. Boron Removal Using Li-Al-OH Layered Double Hydroxide Prepared by One-Step Mechanochemical Approach. Preprints2018, 2018110477. https://doi.org/10.20944/preprints201811.0477.v1
APA Style
Tian, J., Qu, J., Wan, L., Zhang, Q., & Gao, H. (2018). Boron Removal Using Li-Al-OH Layered Double Hydroxide Prepared by One-Step Mechanochemical Approach. Preprints. https://doi.org/10.20944/preprints201811.0477.v1
Chicago/Turabian Style
Tian, J., Qiwu Zhang and Huimin Gao. 2018 "Boron Removal Using Li-Al-OH Layered Double Hydroxide Prepared by One-Step Mechanochemical Approach" Preprints. https://doi.org/10.20944/preprints201811.0477.v1
Abstract
In this study, Li-Al-OH layered double hydroxide (LDH), which was prepared by solvent-free one-step mechanochemical reaction of LiOH and Al(OH)3, was applied to remove boron from aqueous solution. Dry-grinding for 3 h at a rotational speed of 500 rpm, Li/Al molar 1/2 was the optimum condition to prepare highly crystalline of Li-Al LDH phase with no evident impure phases. Two milling products with Li/Al molar ratio at 1/2 and 2/2 were evaluated for boron adsorption. The results confirmed that Li/Al molar ratio 2/2 sample showed high boron adsorption capacity due to the physical adsorption of Li-Al-OH LDH and chemical synergism of phase gel Al(OH)3. The adsorption isotherms, described by the Langmuir model, indicated maximum monolayer boron uptake capacity 45.45 mg/g, implying competitive adsorption capacity of the material in our experiment.
Keywords
Li-Al-OH LDH; mechanochemical preparation; boron adsorption; physical and chemical synergism; competitive adsorbent
Subject
Chemistry and Materials Science, Chemical Engineering
Copyright:
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