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has been cited by the following article:

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

  AUTHORS: Longfei Zhang, Xiaogang Han, Jinxin Mu

  KEYWORDS: Modified, Aluminum Containing Waste, Congo Red, Adsorption, Wastewater

  JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.13 No.9, September 22, 2023

  ABSTRACT: 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.