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author:

Wang, Zhe (Wang, Zhe.) [1] | Gu, Xinyue (Gu, Xinyue.) [2] | Zhang, Xinbo (Zhang, Xinbo.) [3] | Wang, Xiao (Wang, Xiao.) [4] | Zhang, Jianqing (Zhang, Jianqing.) [5] | Liu, Ying (Liu, Ying.) [6] | Tan, Xinai (Tan, Xinai.) [7] | Zhao, Ying (Zhao, Ying.) [8] | Kang, Dejun (Kang, Dejun.) [9] (Scholars:康得军) | Guo, Wenshan (Guo, Wenshan.) [10] | Ngo, Huu Hao (Ngo, Huu Hao.) [11]

Indexed by:

EI Scopus SCIE

Abstract:

The production of Integrated circuits (ICs) generates wastewater with a high concentration of residual fluoride ions, necessitating highly efficient fluorine removal methods. In this study, a novel composite carrier was developed using a hydrothermal synthesis method to load Al-MOF and biochar (BC) onto polyurethane foam (PUF), resulting in the composite foam of Al-MOF-PUF@BC. The results showed that the composite carrier exhibited a stable fluoride removal effect, with a maximum adsorption capacity of 16.52 mg/g at room temperature. The adsorption isotherm curves were consistent with the Langmuir isotherm model, and the adsorption kinetics were well-described by the pseudo-first-order model. The mechanism of fluorine adsorption on Al-MOFPUF@BC was ligand exchange with hydroxyl groups and the formation of F-Al bonds. Density functional theory (DFT) calculations revealed that the adsorption energy reached -246.7 eV, indicating stable adsorption for fluoride ions. The composite foam demonstrated excellent regenerative properties and was effective for fluoride removal in actual IC wastewater.

Keyword:

Adsorption Al-MOF Bone carbon Density functional theory Fluorine removal Polyurethane foam

Community:

  • [ 1 ] [Wang, Zhe]Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Enviro, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
  • [ 2 ] [Gu, Xinyue]Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Enviro, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
  • [ 3 ] [Zhang, Xinbo]Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Enviro, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
  • [ 4 ] [Liu, Ying]Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Enviro, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
  • [ 5 ] [Guo, Wenshan]Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Enviro, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
  • [ 6 ] [Ngo, Huu Hao]Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Enviro, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
  • [ 7 ] [Zhang, Xinbo]Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
  • [ 8 ] [Guo, Wenshan]Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
  • [ 9 ] [Ngo, Huu Hao]Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
  • [ 10 ] [Wang, Xiao]TG Hilyte Environm Technol Beijing Co LTD, Beijing 100000, Peoples R China
  • [ 11 ] [Zhang, Jianqing]TG Hilyte Environm Technol Beijing Co LTD, Beijing 100000, Peoples R China
  • [ 12 ] [Tan, Xinai]Dayu Environm Protect Co Ltd, Tianjin 301739, Peoples R China
  • [ 13 ] [Zhao, Ying]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 14 ] [Kang, Dejun]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

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Source :

SCIENCE OF THE TOTAL ENVIRONMENT

ISSN: 0048-9697

Year: 2023

Volume: 901

8 . 2

JCR@2023

8 . 2 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 22

SCOPUS Cited Count: 26

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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