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author:

Lv, Yuancai (Lv, Yuancai.) [1] (Scholars:吕源财) | He, Shiyu (He, Shiyu.) [2] | Liu, Shuting (Liu, Shuting.) [3] | Yu, Zhendong (Yu, Zhendong.) [4] | Jiang, Yanting (Jiang, Yanting.) [5] | Hu, Yihui (Hu, Yihui.) [6] | Liu, Yifan (Liu, Yifan.) [7] | Lin, Chunxiang (Lin, Chunxiang.) [8] (Scholars:林春香) | Ye, Xiaoxia (Ye, Xiaoxia.) [9] (Scholars:叶晓霞) | Yang, Guifang (Yang, Guifang.) [10] | Liu, Minghua (Liu, Minghua.) [11]

Indexed by:

EI Scopus SCIE

Abstract:

Doping polymetals on Fe-based catalysts is proved to be an effective way to improve the performance on activating persulfate. In this paper, a highly efficient persulfate activation catalyst (FeCo@MoS2) was successfully synthesized by introducing MoS2 onto the surface of FeCo nanoboxes. During the activation of PMS the introduced of MoS2 effectively promoted the formation of free radicals (center dot OH, SO4 center dot), O-1(2) and Fe(IV). Due to the synergistic effects between Mo and Fe, FeCo@MoS2 has better catalytic activity (2.01 times larger of defluorination efficiency and 3.91 times larger of the apparent rate constant (k(obs))) than FeCo. Under the optimal conditions (catalyst dosage of 0.2 g L-1, PMS dosage of 1.0 g L-1 and initial pH 4.0), the perfluorooctanoic acid (PFOA, 10 mg L-1) could be degraded in 60 min, with 90.26 +/- 2.64% of the defluorination efficiency. The LCMS results showed that under the attack of free radicals (center dot OH, SO4 center dot), O-1(2) and Fe(IV), the PFOA underwent stepby-step defluorination process. In addition, the ECOSAR results showed that during the whole degradation of PFOA in FeCo@MoS2/PMS system, no highly toxic intermediates was accumulated, suggesting a green degradation process. This work showed new ideas and strategies for studying the influence of polymetallic doping on the catalytic process of PMS multiphase catalytic system.

Keyword:

Ecotoxicity Perfluorooctanoic acid (PFOA) Persulfate activation

Community:

  • [ 1 ] [Lv, Yuancai]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 2 ] [He, Shiyu]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 3 ] [Liu, Shuting]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 4 ] [Yu, Zhendong]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 5 ] [Jiang, Yanting]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 6 ] [Hu, Yihui]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 7 ] [Liu, Yifan]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 8 ] [Lin, Chunxiang]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 9 ] [Ye, Xiaoxia]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 10 ] [Liu, Minghua]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China
  • [ 11 ] [Yang, Guifang]Putian Univ, Fujian Prov Key Lab Ecol Toxicol Effects & Control, Putian 351100, Peoples R China
  • [ 12 ] [Liu, Minghua]Putian Univ, Fujian Prov Key Lab Ecol Toxicol Effects & Control, Putian 351100, Peoples R China
  • [ 13 ] [Yang, Guifang]Minjiang Univ, Coll Geog & Ocean, Fujian Key Lab Conservat & Sustainable Utilizat Ma, Fuzhou 350108, Peoples R China
  • [ 14 ] [Liu, Yifan]Fuzhou Univ, Coll Environm & Safety Engn, Shangjie Town, Minhou Cty, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 15 ] [Yang, Guifang]Minjiang Univ, Coll Geog & Ocean, Shangjie Town, Minhou Cty, Xiyuangong Rd, Fuzhou 350108, Fujian, Peoples R China
  • [ 16 ] [Liu, Minghua]Minjiang Univ, Coll Geog & Ocean, Shangjie Town, Minhou Cty, Xiyuangong Rd, Fuzhou 350108, Fujian, Peoples R China

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Source :

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

ISSN: 2213-2929

Year: 2023

Issue: 2

Volume: 11

7 . 4

JCR@2023

7 . 4 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:35

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 9

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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