Photo-Fenton self-cleaning carbon fibers membrane supported with Zr-MOF@Fe2O3 for effective phosphate removal from algae-rich water

Sen Zeng; Yuanshang Liu; Yanmin Wang; Yunhua Wang; Yaming Zhou; Lihuang Li; Shuo Li; Xi Zhou; Miao Wang; Xueqin Zhao; Lei Ren

doi:10.1016/j.chemosphere.2023.138175

Photo-Fenton self-cleaning carbon fibers membrane supported with Zr-MOF@Fe₂O₃ for effective phosphate removal from algae-rich water

Chemosphere. 2023 May:323:138175. doi: 10.1016/j.chemosphere.2023.138175. Epub 2023 Feb 28.

Authors

Sen Zeng¹, Yuanshang Liu², Yanmin Wang², Yunhua Wang², Yaming Zhou², Lihuang Li², Shuo Li³, Xi Zhou², Miao Wang², Xueqin Zhao⁴, Lei Ren⁵

Affiliations

¹ Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, PR China; College of Materials Science and Engineering, Fujian University of Technology, Fujian, Fuzhou, 350118, China.
² Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, PR China.
³ College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China.
⁴ College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China. Electronic address: zhaoxueqin@zstu.edu.cn.
⁵ Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, PR China; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China. Electronic address: renlei@xmu.edu.cn.

PMID: 36863624
DOI: 10.1016/j.chemosphere.2023.138175

Abstract

Adsorbents featuring abundant binding sites and high affinity to phosphate have been used to resolve water eutrophication. However, most of the developed adsorbents were focused on improving the adsorption ability of phosphate but ignored the effect of biofouling on the adsorption process especially used in the eutrophic water body. Herein, a novel MOF-supported carbon fibers (CFs) membrane with high regeneration and antifouling capability, was prepared by in-situ synthesis of well-dispersed MOF on CFs membrane, to remove phosphate from algae-rich water. The hybrid UiO-66-(OH)₂@Fe₂O₃@CFs membrane exhibits a maximum adsorption capacity of 333.3 mg g^-1 (pH 7.0) and excellent selectivity for phosphate sorption over coexisting ions. Moreover, the Fe₂O₃ nanoparticles anchored on the surface of UiO-66-(OH)₂ through 'phenol-Fe(III)' reaction can endow the membrane with the robust photo-Fenton catalytic activity, which improves long-term reusability even under algae-rich condition. After 4 times photo-Fenton regenerations, the regeneration efficiency of the membrane could remain 92.2%, higher than that of hydraulic cleaning (52.6%). Moreover, the growth of C. pyrenoidosa was significantly reduced by 45.8% within 20 days via metabolism inhibition due to membrane-induced P-deficient conditions. Hence, the developed UiO-66-(OH)₂@Fe₂O₃@CFs membrane holds significant prospects for large-scale application in phosphate sequestration of eutrophic water bodies.

Keywords: Adsorption; Biofouling; Membrane; Phosphate; Photo-Fenton.

MeSH terms

Adsorption
Carbon Fiber
Ferric Compounds / chemistry
Humans
Phosphates
Water*

Substances

Carbon Fiber
Water
UiO-66
Ferric Compounds
Phosphates