PMID- 35870608
OWN - NLM
STAT- MEDLINE
DCOM- 20220928
LR  - 20220928
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 307
IP  - Pt 1
DP  - 2022 Nov
TI  - In-situ formed nanoscale Fe(0) for fenton-like oxidation of thermosetting 
      unsaturated polyester resin composites: Nondestructively recycle carbon fiber.
PG  - 135780
LID - S0045-6535(22)02273-1 [pii]
LID - 10.1016/j.chemosphere.2022.135780 [doi]
AB  - Thermosetting unsaturated polyester resin (UPR) composites were found widespread 
      industrial applications. However, the numerous stable carbon-carbon bonds in 
      cross-linked networks made them intractable for degradation, causing the 
      large-scale composite wastes. Here a nanoscale Fe(0) catalyst in-situ forming 
      strategy was exploited to nondestructively recycle carbon fiber (CF) from UPR 
      composites via Fenton-like reaction. The nano-Fe(0) catalyst employed in this 
      strategy activated H(2)O(2) for removing UPR, featuring mild conditions and 
      efficient degradation ability. Aiming at facile growth of the catalyst, a porous 
      UPR was achieved by the hydrolysis of alkalic system. The nanoscale Fe(0) 
      catalyst was subsequently formed in-situ on the surface of hydrolyzed resin by 
      borohydride reduction. Benefiting from fast mass transfer, the in-situ grown 
      nano-Fe(0) showed more efficient degradation ability than added nano-Fe(0) or 
      Fe(2+) catalyst during Fenton-like reaction. The experiments indicated that 
      hydrolyzed resin could be degraded more than 90% within 80 min, 80  degrees C. GC-MS, 
      FT-IR analysis and Density functional theory (DFT) calculation were conducted to 
      explained the fracture processes of carbon skeleton in hydrolyzed resin. 
      Especially, a remarkable recovery process of CF from composites was observed, 
      with a 100 percent elimination of resin. The recycled CF cloth exhibited a 99% 
      strength retention and maintained the textile structure, microtopography, 
      chemical structure, resulting in the nondestructive reclaim of CF. This in-situ 
      formed nanoscale Fe(0) catalytic degradation strategy may provide a promising 
      practical application for nondestructively recycle CF from UPR composites.
CI  - Copyright (c) 2022 Elsevier Ltd. All rights reserved.
FAU - Wang, Baolong
AU  - Wang B
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Sun, Xueying
AU  - Sun X
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Lu, Fei
AU  - Lu F
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Shen, Yibo
AU  - Shen Y
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Xu, Ningdi
AU  - Xu N
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Liu, Yingying
AU  - Liu Y
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Huang, Yudong
AU  - Huang Y
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Hu, Zhen
AU  - Hu Z
AD  - School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical 
      Materials Technology for New Energy Conversion and Storage, Harbin Institute of 
      Technology, Harbin, 150001, China. Electronic address: huzhen@hit.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20220720
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Borohydrides)
RN  - 0 (Carbon Fiber)
RN  - 0 (Polyesters)
RN  - 7440-44-0 (Carbon)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - E1UOL152H7 (Iron)
SB  - IM
MH  - Borohydrides
MH  - Carbon
MH  - Carbon Fiber
MH  - Catalysis
MH  - *Hydrogen Peroxide/chemistry
MH  - *Iron/chemistry
MH  - Polyesters
MH  - Spectroscopy, Fourier Transform Infrared
OTO - NOTNLM
OT  - Fenton-like oxidation
OT  - In-situ formed
OT  - Nano-Fe(0) catalyst
OT  - Nondestructive recycling
OT  - Unsaturated polyester resin composites
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2022/07/24 06:00
MHDA- 2022/09/28 06:00
CRDT- 2022/07/23 19:25
PHST- 2021/12/20 00:00 [received]
PHST- 2022/06/17 00:00 [revised]
PHST- 2022/07/16 00:00 [accepted]
PHST- 2022/07/24 06:00 [pubmed]
PHST- 2022/09/28 06:00 [medline]
PHST- 2022/07/23 19:25 [entrez]
AID - S0045-6535(22)02273-1 [pii]
AID - 10.1016/j.chemosphere.2022.135780 [doi]
PST - ppublish
SO  - Chemosphere. 2022 Nov;307(Pt 1):135780. doi: 10.1016/j.chemosphere.2022.135780. 
      Epub 2022 Jul 20.