Zheng Guoyuan, Wu Caihong, Wang Jilin, Mo Shuyi, Zou Zhengguang, Zhou Bing, Long Fei
Key Laboratory of New Processing Technology for Nonferrous Metals and Materials of Ministry of Education, Guilin University of Technology, Guilin, 541004, China.
Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guilin University of Technology, Guilin, 541004, China.
Nanoscale Res Lett. 2019 Aug 16;14(1):281. 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. In addition, the maximum adsorption capacity of MO was 4681.40 mg g 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.
在此，通过一锅法成功地将无机的γ-氢氧化铝插入到MgAl层状双氢氧化物（LDH）层中，该复合材料作为一种吸附剂用于去除废水中的甲基橙（MO）。对γ-氢氧化铝/MgAl-LDH的结构和吸附性能进行了表征。研究表明，γ-氢氧化铝/MgAl-LDH的膨胀（003）平面和羟基活性位点可分别促进吸附容量和吸附动力学。因此，γ-氢氧化铝/MgAl-LDH表现出超强的吸附性能，在1000 mg/g的浓度下能完全吸附MO。此外，根据朗缪尔模型，MO的最大吸附容量为4681.40 mg/g。这些结果表明，γ-氢氧化铝/MgAl-LDH是一种用于去除水中有机染料的潜在吸附剂。
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