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作者:

Li, Beibei (Li, Beibei.) | Xu, Conglei (Xu, Conglei.) | Yu, Danning (Yu, Danning.) | Qi, Ziyuan (Qi, Ziyuan.) | Wang, Yifei (Wang, Yifei.) | Peng, Yongzhen (Peng, Yongzhen.)

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EI Scopus SCIE

摘要:

The efficient enrichment and reutilization of phosphate from natural water still remains a daunting challenge to satisfy the increasingly stringent phosphate discharge criteria. In response to this problem, the presented study successfully synthesizes a series of magnetic zeolitic imidazolate framework-8@engineering nanomaterials (ZIF8@ENMs) via a two-step hydrothermal and coprecipitation method by facilely growing ZIF8 and/or Fe3O4 on various functional ENMs. Structure morphology, chemical composition and hysteresis curve characterizations demonstrate the successful formation of magnetic Fe3O4-ZIF8@ENM. Amongst the prepared magnetic ZIF8@ENMs hybrids, the Fe3O4-ZIF8@ENMs possessing massive hydroxyl groups is demonstrated to harvest the maximum adsorption capacity of 441.7 mg g(-1) under neutral condition. Such-acquired adsorption capacity evidently surpass state-of-the-art adsorbents. Systematic assessment of the chemical condition effects on phosphate removal, revealing its conspicuous merits of robust pH independence (94.63-98.20%), high selectivity pinpointing phosphate within complex cations, ease-of-separation and satisfactory recycle. The outstanding performance of magnetic ZIF8@ENMs are mainly derived from the formed strong Zn-O-P, Fe-O-P and electrostatic interactions between phosphate and adsorbents. Along this line, designing magnetic MOFs-based hybrids towards phosphate are anticipated to be promising avenues for advanced treatment of phosphate-like contaminants and efficient recycle in practical applications. (C) 2022 Elsevier Inc. All rights reserved.

关键词:

Reutilization Phosphate Natural water Magnetic MOF@ENM Adsorption

作者机构:

  • [ 1 ] [Li, Beibei]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 2 ] [Xu, Conglei]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 3 ] [Yu, Danning]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 4 ] [Qi, Ziyuan]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Yifei]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 6 ] [Peng, Yongzhen]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF COLLOID AND INTERFACE SCIENCE

ISSN: 0021-9797

年份: 2022

卷: 613

页码: 71-83

9 . 9

JCR@2022

9 . 9 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:53

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 17

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 7

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