PMID- 31605994
OWN - NLM
STAT- MEDLINE
DCOM- 20200207
LR  - 20200207
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 241
DP  - 2020 Feb
TI  - Fabrication of iron-dipicolinamide catalyst with Fe-N bonds for enhancing 
      non-radical reactive species under alkaline Fenton process.
PG  - 125005
LID - S0045-6535(19)32244-1 [pii]
LID - 10.1016/j.chemosphere.2019.125005 [doi]
AB  - Iron dipicolinamide (Fedpa), as an efficient Fenton-like catalyst, was fabricated 
      to excite hydrogen peroxide (H(2)O(2)) for the removal of 2,4-dichlorophenol 
      (2,4-DCP). The unique structures and the electronic properties of Fedpa were 
      contributed to its excellent catalytic performance in alkaline Fenton process. Fe 
      was chelated with dpa by four Fe-N bonds leaved two labile sites, which reduced 
      the oxidation potential of dpa[Fe(III)/Fe(II)], dpa[Fe(V)/Fe(III)] or 
      dpa[Fe(IV)/Fe(II)] to 0.316 V and 1.189 V respectively, and made it easily be 
      bound with H(2)O(2) to initiate the reaction. The results showed that 99.5% 
      removal rate of 2,4-DCP (0.58 mM) was achieved by using 0.027 g/L Fedpa and 
      5.8 mM H(2)O(2) in 60 min at pH 9.9. The coordination between Fe and dpa enhanced 
      the catalytic efficiency of Fe(II). The active species generated in 
      Fedpa/H(2)O(2) system contained the iron-oxo species (dpaFe(V) = O or 
      dpa(IV) = O), O(2)(-) and HO. The iron-oxo species was the main non-radical 
      reactive species for the degradation of 2,4-DCP and some degradation 
      intermediates were detected by GC-QTOF. Furthermore, the influence of factors, 
      such as Fedpa loading, solution pH, temperature and anions (F(-), Cl(-), 
      SO(4)(2-), NO(3)(-) and PO(4)(3-)) on the catalytic performance of Fedpa were 
      also discussed. This process of complexation between Fe and dpa combined with a 
      green oxidant H(2)O(2) presents a new insight for the use of Fenton-like system 
      in the degradation of refractory organics.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Jin, Qianqian
AU  - Jin Q
AD  - State Key Laboratory of Urban Water Resource and Environment, School of 
      Environment, Harbin Institute of Technology, Harbin, 150090, China.
FAU - Chen, Qian
AU  - Chen Q
AD  - State Key Laboratory of Urban Water Resource and Environment, School of 
      Environment, Harbin Institute of Technology, Harbin, 150090, China; School of 
      Chemical Engineering, Southwest Forestry University, Kunming, 650224, China. 
      Electronic address: chenqian@hit.edu.cn.
FAU - Kang, Jing
AU  - Kang J
AD  - State Key Laboratory of Urban Water Resource and Environment, School of 
      Environment, Harbin Institute of Technology, Harbin, 150090, China.
FAU - Shen, Jimin
AU  - Shen J
AD  - State Key Laboratory of Urban Water Resource and Environment, School of 
      Environment, Harbin Institute of Technology, Harbin, 150090, China.
FAU - Guo, Fang
AU  - Guo F
AD  - School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 
      Harbin, 150080, China.
FAU - Chen, Zhonglin
AU  - Chen Z
AD  - State Key Laboratory of Urban Water Resource and Environment, School of 
      Environment, Harbin Institute of Technology, Harbin, 150090, China. Electronic 
      address: zhonglinchen@hit.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20190928
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Chlorophenols)
RN  - 0 (Oxidants)
RN  - 0 (Water Pollutants)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - E1UOL152H7 (Iron)
RN  - N762921K75 (Nitrogen)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Catalysis
MH  - Chlorophenols/chemistry/*isolation & purification
MH  - Hydrogen Peroxide/*chemistry
MH  - Iron/*chemistry
MH  - Nitrogen/chemistry
MH  - Oxidants/chemistry
MH  - Oxidation-Reduction
MH  - Water Pollutants/chemistry/*isolation & purification
OTO - NOTNLM
OT  - Catalytic performance
OT  - Degradation mechanism
OT  - H(2)O(2) activation
OT  - Iron dipicolinamide
OT  - Non-radical species
EDAT- 2019/10/13 06:00
MHDA- 2020/02/08 06:00
CRDT- 2019/10/13 06:00
PHST- 2019/07/01 00:00 [received]
PHST- 2019/09/13 00:00 [revised]
PHST- 2019/09/27 00:00 [accepted]
PHST- 2019/10/13 06:00 [pubmed]
PHST- 2020/02/08 06:00 [medline]
PHST- 2019/10/13 06:00 [entrez]
AID - S0045-6535(19)32244-1 [pii]
AID - 10.1016/j.chemosphere.2019.125005 [doi]
PST - ppublish
SO  - Chemosphere. 2020 Feb;241:125005. doi: 10.1016/j.chemosphere.2019.125005. Epub 
      2019 Sep 28.