Space-Confined Effect One-Pot Synthesis of γ-AlO(OH)/MgAl-LDH Heterostructures with Excellent Adsorption Performance

• Published in: Nanoscale research letters Vol. 14; no. 1; pp. 281 - 12
• Main Authors: Zheng, Guoyuan, Wu, Caihong, Wang, Jilin, Mo, Shuyi, Zou, Zhengguang, Zhou, Bing, Long, Fei
• Format: Journal Article
• Language: English
• Published: New York Springer US 16.08.2019; Springer Nature B.V; SpringerOpen
• Subjects: Adsorbents; Adsorption; Chemistry and Materials Science; Color removal; Dyes; Heterostructures; Langmuir model; Materials Science; Microscopy; Molecular Medicine; Nano Express; Nanochemistry; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Potential adsorbent; Radiation; Space-confined; Spectrum analysis; Synthesis; Wastewater; Wastewater treatment; γ-AlO(OH)/MgAl-LDH; γ-AlO(OH)/MgAl-LDH; Langmuir model; Potential adsorbent; Space-confined
• ISSN: 1931-7573; 1556-276X
• DOI: 10.1186/s11671-019-3112-x

Herein, γ-AlO(OH) as an inorganic was successfully inserted into MgAl-LDH layer by a one-pot synthesis, the composite as an adsorbent for removing methyl orange (MO) from wastewater. The structure and adsorption performance of γ-AlO(OH)/MgAl-LDH were characterized. The research shows that the expansion (003) plane and the hydroxyl active site of γ-AlO(OH)/MgAl-LDH can promote adsorption capacity and adsorption kinetics, respectively. Therefore, γ-AlO(OH)/MgAl-LDH exhibits a super adsorption performance, which completely adsorbs MO at the concentration of 1000 mg g −1 . In addition, the maximum adsorption capacity of MO was 4681.40 mg g −1 according to the Langmuir model. These results indicate that γ-AlO(OH)/MgAl-LDH is a potential adsorbent for the removal of organic dyes in water.