Preparation of Bioaerogel from Iron-Rich Microalgae for the Removal of Water Pollutants

Xinqi Niu; Junhui Si; Binyi Chen; Qianting Wang; Sen Zeng; Zhixiang Cui

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2024.1676

Published Article

LAPSE:2024.1676

Preparation of Bioaerogel from Iron-Rich Microalgae for the Removal of Water Pollutants

Xinqi Niu, Junhui Si, Binyi Chen, Qianting Wang, Sen Zeng, Zhixiang Cui

August 23, 2024

Microalgae-based materials have gained significant attention considering their rich resources, cost-effectiveness, and environmental friendliness. Herein, iron-rich microalgae (Chlorella pyrenoidosa, CP) were treated by hydrothermal reaction under alkaline conditions to remove the protoplast and obtain a hollow shell with an FexOy core inside. Then, the iron-rich microalgae-based aerogel (Fe-CP aerogel) was fabricated through a freeze-drying process. The as-prepared Fe-CP aerogel exhibited superior adsorption performance, and the maximum adsorption quantity for Cu2+ could reach 208.3 mg/g due to the synergistic adsorption of the hollow shell of CP cells and FexOy core. The Fe-CP aerogel also possessed super-hydrophilicity and displayed high separation efficiency (over 99%) when used for separating different oil/water emulsions. Moreover, the existence of FexOy endowed the Fe-CP aerogel with photo-Fenton activity, thus exhibiting excellent antifouling performance. The prepared Fe-CP aerogel could be considered an ideal adsorbent, with green, efficient, low-cost, and regenerative properties, and has the potential for the practical treatment of wastewater.

Record ID

LAPSE:2024.1676

Keywords

Adsorption, aerogel, microalgae, photo-Fenton, wastewater treatment

Subject

Environment

Suggested Citation

Niu X, Si J, Chen B, Wang Q, Zeng S, Cui Z. Preparation of Bioaerogel from Iron-Rich Microalgae for the Removal of Water Pollutants. (2024). LAPSE:2024.1676

Author Affiliations

Niu X: College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; Fu Jian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou 350118, China; Key Laboratory of Polymer Materials and Products
Si J: College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; Fu Jian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou 350118, China; Key Laboratory of Polymer Materials and Products
Chen B: College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; Fu Jian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou 350118, China; Key Laboratory of Polymer Materials and Products
Wang Q: College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; Fu Jian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou 350118, China; Key Laboratory of Polymer Materials and Products
Zeng S: College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; Fu Jian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou 350118, China; Key Laboratory of Polymer Materials and Products
Cui Z: College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; Fu Jian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou 350118, China; Key Laboratory of Polymer Materials and Products [ORCID]

Journal Name

Processes

Volume

12

Issue

7

First Page

1313

Year

2024

Publication Date

2024-06-24