Facile and template-free fabrication of hollow spherical AlOOH and Al2O3 from the waste aluminum residue: Growth mechanism and fast removal of Congo red

Guo, Jiaqi; Shen, Xiaoyi; Shao, Hongmei; Ning, Liming; Shi, Youjiang; Han, Qing; Chen, Jianshe; Liu, Yan; Zhai, Yuchun

doi:10.1016/j.jssc.2022.123627

Cited by 4 publications

(2 citation statements)

References 42 publications

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“…The hollow spherical AlOOH and Al2O3 synthesized from aluminum scrap without the use of a template, which feature a large specific surface area and total pore volume, show excellent adsorption performance for CR, with the maximum adsorption capacity of 277.00 and 478.47 mg/g, respectively, and the adsorption almost reaches equilibrium within 10 min [9]. From the aluminum slag obtained from the frame manufacturing plant, γ-Al2O3 can be synthesized by precipitation and calcination.…”

Section: Introductionmentioning

confidence: 99%

A Novel Adsorbent Prepared by Aluminum-Containing Waste Residue and Its Application for Congo Red Wastewater Decolorization

Longfei,

Xiaogang,

Jinxin

2023

Preprint

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Modified aluminum slag (MAS) was applied as an adsorbent for Congo red (CR) prepared by the hydrothermal treatment of Ca (OH) 2. At 25 ℃, with a MAS dosage of 0.3g, initial CR concentration of 100 mg/L and initial pH=5, and the adsorption time was 40 min, the CR removal efficiency was 98.41%. The adsorption trend of CR conformed to the second-order kinetics, and the adsorption isotherm follows the Freundlich isotherm model. Compared with RAS, MAS has a larger pore volume and specific surface area. The mechanism of action of MAS on CR was the interaction between membrane diffusion and internal diffusion, and the adsorption rate during the membrane diffusion was the fastest.

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Section: Introductionmentioning

confidence: 99%

A Novel Adsorbent Prepared by Aluminum-Containing Waste Residue and Its Application for Congo Red Wastewater Decolorization

Longfei,

Xiaogang,

Jinxin

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The hollow spherical AlOOH and Al 2 O 3 synthesized from aluminum scrap without the use of a template, which feature a large specific surface area and total pore volume, show excellent adsorption performance for CR, with the maximum adsorption capacity of 277.00 and 478.47 mg/g, respectively, and the adsorption almost reaches equilibrium within 10 min [9]. From the aluminum slag obtained from the frame manufacturing plant, γ-Al 2 O 3 can be synthesized by precipitation and calcination.…”

Section: Introductionmentioning

confidence: 99%

A Novel Adsorbent Prepared by Aluminum-Containing Waste Residue and Its Application for Congo Red Wastewater Decolorization

Zhang,

Han,

2023

AMPC

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Modified aluminum slag (MAS) was applied as an adsorbent for Congo red (CR) prepared by the hydrothermal treatment of Ca(OH) 2 . At 25˚C, with a MAS dosage of 0.3 g, initial CR concentration of 100 mg/L and initial pH = 5, and the adsorption time was 40 min, the CR removal efficiency was 98.41%. The adsorption trend of CR conformed to the second-order kinetics, and the adsorption isotherm follows the Freundlich isotherm model. Compared with RAS, MAS has a larger pore volume and specific surface area. The mechanism of action of MAS on CR was the interaction between membrane diffusion and internal diffusion, and the adsorption rate during the membrane diffusion was the fastest.

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Future trends in dye removal by metal oxides and their Nano/Composites: A comprehensive review

Kasbaji,

Ibrahim,

Mennani

et al. 2023

Inorganic Chemistry Communications

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Facile and template-free fabrication of hollow spherical AlOOH and Al2O3 from the waste aluminum residue: Growth mechanism and fast removal of Congo red

Cited by 4 publications

References 42 publications

A Novel Adsorbent Prepared by Aluminum-Containing Waste Residue and Its Application for Congo Red Wastewater Decolorization

A Novel Adsorbent Prepared by Aluminum-Containing Waste Residue and Its Application for Congo Red Wastewater Decolorization

A Novel Adsorbent Prepared by Aluminum-Containing Waste Residue and Its Application for Congo Red Wastewater Decolorization

Future trends in dye removal by metal oxides and their Nano/Composites: A comprehensive review

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