PMID- 35513147
OWN - NLM
STAT- MEDLINE
DCOM- 20220608
LR  - 20220608
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 836
DP  - 2022 Aug 25
TI  - Synthesis of self-renewing Fe(0)-dispersed ordered mesoporous carbon for 
      electrocatalytic reduction of nitrates to nitrogen.
PG  - 155640
LID - S0048-9697(22)02736-X [pii]
LID - 10.1016/j.scitotenv.2022.155640 [doi]
AB  - In electrocatalytic reduction of nitrates to nitrogen, key issues are electrode 
      activity, sustainable materials, preparation methods and cost. Herein, lignin, 
      Fe(3+) ion, and non-ionic surfactant were combined with evaporation-induced 
      self-assembly (EISA) to prepare zero-valent Fe-dispersed ordered mesoporous 
      carbon (OMC) electrode materials denoted as Fe#OMC. The method developed for 
      preparing Fe-coordinated OMC material avoids the use of toxic phenols, aldehyde 
      reagents and metal doping compounds. When synthesized Fe#OMC samples were applied 
      as electrode materials for the electrocatalytic reduction of nitrate in aqueous 
      solutions, maximum nitrate nitrogen removal was as high as 5373 mg N.g(-1) Fe 
      from aqueous solutions containing 400 mg.L(-1) NO(3)(-)-N, while nitrogen 
      selectivity was close to 100%, exceeding catalytic performance of comparable 
      materials. Active hydrogen produced by electrolysis of water during the reaction 
      re-reduced Fe ions formed in the OMC material and stabilized Fe#OMC electrode 
      performance and recycle. The Fe#OMC electrode is self-renewing with respect to 
      its Fe zero-valent state, is simple to prepare from sustainable materials and is 
      effective for electrocatalytic reduction of nitrate or nitrogen-containing 
      compounds in water.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Liu, Xiaoning
AU  - Liu X
AD  - College of Environmental Science and Engineering, Nankai University, No. 38, 
      Tongyan Road, Jinnan District, Tianjin 300350, China.
FAU - Wang, Yicong
AU  - Wang Y
AD  - College of Environmental Science and Engineering, Nankai University, No. 38, 
      Tongyan Road, Jinnan District, Tianjin 300350, China.
FAU - Smith, Richard L Jr
AU  - Smith RL Jr
AD  - Graduate School of Environmental Studies, Tohoku University, Aramaki Aza Aoba 
      6-6-11, Aoba-ku, Sendai 980-8579, Japan.
FAU - Liu, Le
AU  - Liu L
AD  - College of Environmental Science and Engineering, Nankai University, No. 38, 
      Tongyan Road, Jinnan District, Tianjin 300350, China; National-Local Joint 
      Engineering Research Center of Biomass Resource Utilization, Nankai University, 
      No. 38, Tongyan Road, Jinnan District, Tianjin 300350, China.
FAU - Qi, Xinhua
AU  - Qi X
AD  - College of Environmental Science and Engineering, Nankai University, No. 38, 
      Tongyan Road, Jinnan District, Tianjin 300350, China; National-Local Joint 
      Engineering Research Center of Biomass Resource Utilization, Nankai University, 
      No. 38, Tongyan Road, Jinnan District, Tianjin 300350, China. Electronic address: 
      qixinhua@nankai.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20220502
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Nitrates)
RN  - 0 (Nitrogen Oxides)
RN  - 059QF0KO0R (Water)
RN  - 7440-44-0 (Carbon)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - *Carbon
MH  - Catalysis
MH  - *Nitrates
MH  - Nitrogen
MH  - Nitrogen Oxides
MH  - Water
OTO - NOTNLM
OT  - Electrocatalysis
OT  - Lignin
OT  - Meso-porous material
OT  - Nitrate reduction
OT  - Water treatment
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- 2022/05/06 06:00
MHDA- 2022/06/09 06:00
CRDT- 2022/05/05 21:46
PHST- 2022/04/01 00:00 [received]
PHST- 2022/04/26 00:00 [revised]
PHST- 2022/04/28 00:00 [accepted]
PHST- 2022/05/06 06:00 [pubmed]
PHST- 2022/06/09 06:00 [medline]
PHST- 2022/05/05 21:46 [entrez]
AID - S0048-9697(22)02736-X [pii]
AID - 10.1016/j.scitotenv.2022.155640 [doi]
PST - ppublish
SO  - Sci Total Environ. 2022 Aug 25;836:155640. doi: 10.1016/j.scitotenv.2022.155640. 
      Epub 2022 May 2.