Removal of Bisphenol A and 2, 4-Dichlorophenol from Lake Water Using a Flower-Like Covalent Organic Framework
Chunbo Liu, Junheng You, Ruirui Hu, Wei Jiang, Duan Yuanxing, Juan Li, Zhenjie Li, Ruizhi Zhu, Yuandong Li, Zhihua Liu, Kunmiao Wang, Chunyan Chen
Abstract
Covalent organic frameworks have received interest in many fields due to their fascinating properties. In this work, a flower-like covalent organic framework was prepared by a simple solvothermal method and used as an adsorbent for the removal of bisphenol A and 2,4-dichlorophenol from lake water. Due to the inherent hydrophobicity and large delocalized π-electron system, the proposed flower-like covalent organic framework forms π-π staking interactions with the aromatic ring-related compounds. Furthermore, the advantages of flower-like covalent organic framework, such as the porous structure and large specific surface area, facilitate the adsorption of phenolic compounds. Therefore, the flower-like covalent organic framework exhibited a relatively high affinity for bisphenol A and 2,4-dichlorophenol with adsorption capacity values of 56.8 mg/g and 36.6 mg/g, respectively. Furthermore, this material was successfully applied to remove bisphenol A and 2,4-dichlorophenol from lake water samples.