PMID- 35676574
OWN - NLM
STAT- MEDLINE
DCOM- 20221021
LR  - 20221021
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 29
IP  - 51
DP  - 2022 Nov
TI  - Iron-loaded leonardite powder for Fenton oxidation of Reactive Red 180 dye 
      removal.
PG  - 77071-77080
LID - 10.1007/s11356-022-21306-7 [doi]
AB  - Fenton oxidation is an effective and valuable method for wastewater treatment. To 
      inhibit environmental impacts and increase overall reaction efficiencies, it is 
      important to develop advanced catalysts. This paper illustrates an experimental 
      study on the elimination of RR180 dye from synthetic aqueous solutions with raw 
      leonardite and different iron-loaded leonardite powders, Fe(0)-loaded leonardite, 
      and Fe(II)-loaded leonardite. The effect of solution pH (2.0-6.0), catalyst 
      amount (0.10-1.5 g/L), H(2)O(2) concentration (10-50 microL/L), and dye concentration 
      (10-30 ppm) was tested to achieve maximum color removal efficiency using the 
      three catalysts. At pH = 2, color removal efficiencies were higher and more 
      suitable. Initial experiments showed the advantage of using Fe(II)-loaded 
      leonardite on using Fe(0)-loaded leonardite. Fe(II)-loaded leonardite catalyst 
      was the most efficient in RR180 color removal compared to the other tested 
      reagents. Color removal in function of solution pH did not decrease much when 
      Fe(II)-loaded leonardite was used (100 to 96%) when pH was increased from 2.0 to 
      6.0. In the other hand, dye removal has been significantly affected in the case 
      of using raw leonardite, Fe(0)-loaded leonardite (93 to 0%), and (100 to 13%) in 
      the same pH range, respectively. At optimum experimental conditions, catalyst 
      amount: 0.75 g/L for Fe(II) and Fe(0)-loaded leonardite and 1.5 g/L for raw 
      leonardite; dye concentration: 10 ppm; solution pH: 2.0; H(2)O(2) concentration: 
      50 microL/L; volume: 100 mL and reaction time: 60 min, RR180 dye removal efficiencies 
      were 91%, 100%, and 100% by raw leonardite, Fe(0)-loaded leonardite and 
      Fe(II)-loaded leonardite, respectively. The stability and reusability of the 
      tested catalyst was investigated up to ten cycles. The experimental results 
      revealed that both Fe(0)-loaded leonardite and Fe(II)-loaded leonardite can be 
      used in Fenton reaction up to four cycles without decreasing their efficiency in 
      RR180 color removal. The characterization of the catalysts was established using 
      scanning electron microscope with energy dispersive X-ray spectroscopy (SEM-EDX). 
      The synthesized catalyst can be used at large scale in any textile industry to 
      effectively remove dyes resulting in high elimination rates at the optimal 
      determined and studied conditions.
CI  - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Arslan, Hudaverdi
AU  - Arslan H
AD  - Department of Environmental Engineering, Mersin University, Mersin, 33343, 
      Turkey.
FAU - Bouchareb, Raouf
AU  - Bouchareb R
AD  - Department of Environmental Engineering, Process Engineering Faculty, Saleh 
      Boubnider University, 25000, Constantine, Algeria.
FAU - Arikan, Ezgi Bezirhan
AU  - Arikan EB
AD  - Department of Environmental Engineering, Mersin University, Mersin, 33343, 
      Turkey.
FAU - Dizge, Nadir
AU  - Dizge N
AD  - Department of Environmental Engineering, Mersin University, Mersin, 33343, 
      Turkey. ndizge@mersin.edu.tr.
LA  - eng
PT  - Journal Article
DEP - 20220608
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (leonardite)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - 0 (Powders)
RN  - E1UOL152H7 (Iron)
RN  - 0 (Coloring Agents)
RN  - 0 (Ferrous Compounds)
SB  - IM
MH  - *Hydrogen Peroxide/chemistry
MH  - Powders
MH  - *Iron/chemistry
MH  - Catalysis
MH  - Oxidation-Reduction
MH  - Coloring Agents/chemistry
MH  - Ferrous Compounds
OTO - NOTNLM
OT  - Fenton oxidation
OT  - Leonardite
OT  - RR180 removal
OT  - Recycling
OT  - Reusability
EDAT- 2022/06/09 06:00
MHDA- 2022/10/22 06:00
CRDT- 2022/06/08 23:34
PHST- 2021/12/16 00:00 [received]
PHST- 2022/06/01 00:00 [accepted]
PHST- 2022/06/09 06:00 [pubmed]
PHST- 2022/10/22 06:00 [medline]
PHST- 2022/06/08 23:34 [entrez]
AID - 10.1007/s11356-022-21306-7 [pii]
AID - 10.1007/s11356-022-21306-7 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2022 Nov;29(51):77071-77080. doi: 
      10.1007/s11356-022-21306-7. Epub 2022 Jun 8.