Reductive sequestration of chromate by hierarchical FeS@Fe(0) particles

Nanoscale Fe(0) (nFe(0)) can detoxify Cr(VI)-bearing wastewater and groundwater, but rapid passivation is a negative factor for large-scale remediation applications. In this study, a magnetic FeS@Fe(0) hybrid material was fabricated by immobilization of iron sulfide (FeS) onto Fe(0) particles to imp...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Water research (Oxford) Ročník 102; s. 73 - 81
Hlavní autoři: Du, Jiangkun, Bao, Jianguo, Lu, Chenghang, Werner, David
Médium: Journal Article
Jazyk:angličtina
Vydáno: England 01.10.2016
Témata:
Chromates
Chromium - chemistry
Groundwater - chemistry
Iron - chemistry
Water Pollutants, Chemical - chemistry
Reduction
Cr(VI)
FeS@Fe hybrid particles
Nanoscale zerovalent iron
ISSN:1879-2448
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Abstract Nanoscale Fe(0) (nFe(0)) can detoxify Cr(VI)-bearing wastewater and groundwater, but rapid passivation is a negative factor for large-scale remediation applications. In this study, a magnetic FeS@Fe(0) hybrid material was fabricated by immobilization of iron sulfide (FeS) onto Fe(0) particles to improve the Cr(VI) removal capacity. The solid characterization confirmed that Fe(0) particles were encapsulated by amorphous iron monosulfide. The Cr(VI) uptake by FeS@Fe(0) hybrid particles was found to follow pseudo-second-order rate kinetics, and the Langmuir isotherm was most appropriate to describe Cr(VI) sorption. Meanwhile, the FeS@Fe(0) hybrid particles showed a much higher efficiency towards Cr(VI) sequestration compared to individual nFe(0). Moreover, the results of batch experiments with various adsorbent doses indicated that the reactivity of FeS@Fe(0) varies with different FeS-to-Fe(0) molar ratios. The reaction rate constants for Cr(VI) removal first increased with an increasing FeS-to-Fe(0) ratio from 0/1 to 1/9, and then decreased for the FeS-to-Fe(0) ratio increased further 1/5 or 1/3. For environmental parameters, there was a negative effect of increasing the solution pH and dissolved oxygen on Cr(VI) removal. Furthermore, a mechanistic analysis revealed that Cr(VI) reduction occurred predominantly at the solid-liquid interface, and that Fe(II) regenerated from FeS@Fe(0) corrosion may account for 52% of the Cr(VI) reduction, while electrons from Fe(0) and FeS account for the rest. After treatment, Cr(VI) was completely transformed and immobilized as solid Fe-Cr hydroxide precipitates, thus avoiding secondary contamination. The FeS@Fe(0) hybrid material has a better potential for treating Cr(VI)-bearing wastewater than nano Fe(0).
AbstractList Nanoscale Fe(0) (nFe(0)) can detoxify Cr(VI)-bearing wastewater and groundwater, but rapid passivation is a negative factor for large-scale remediation applications. In this study, a magnetic FeS@Fe(0) hybrid material was fabricated by immobilization of iron sulfide (FeS) onto Fe(0) particles to improve the Cr(VI) removal capacity. The solid characterization confirmed that Fe(0) particles were encapsulated by amorphous iron monosulfide. The Cr(VI) uptake by FeS@Fe(0) hybrid particles was found to follow pseudo-second-order rate kinetics, and the Langmuir isotherm was most appropriate to describe Cr(VI) sorption. Meanwhile, the FeS@Fe(0) hybrid particles showed a much higher efficiency towards Cr(VI) sequestration compared to individual nFe(0). Moreover, the results of batch experiments with various adsorbent doses indicated that the reactivity of FeS@Fe(0) varies with different FeS-to-Fe(0) molar ratios. The reaction rate constants for Cr(VI) removal first increased with an increasing FeS-to-Fe(0) ratio from 0/1 to 1/9, and then decreased for the FeS-to-Fe(0) ratio increased further 1/5 or 1/3. For environmental parameters, there was a negative effect of increasing the solution pH and dissolved oxygen on Cr(VI) removal. Furthermore, a mechanistic analysis revealed that Cr(VI) reduction occurred predominantly at the solid-liquid interface, and that Fe(II) regenerated from FeS@Fe(0) corrosion may account for 52% of the Cr(VI) reduction, while electrons from Fe(0) and FeS account for the rest. After treatment, Cr(VI) was completely transformed and immobilized as solid Fe-Cr hydroxide precipitates, thus avoiding secondary contamination. The FeS@Fe(0) hybrid material has a better potential for treating Cr(VI)-bearing wastewater than nano Fe(0).
Author Bao, Jianguo
Du, Jiangkun
Lu, Chenghang
Werner, David
Author_xml – sequence: 1
  givenname: Jiangkun
  surname: Du
  fullname: Du, Jiangkun
  email: djk929@hotmail.com
  organization: School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China. Electronic address: djk929@hotmail.com
– sequence: 2
  givenname: Jianguo
  surname: Bao
  fullname: Bao, Jianguo
  email: bjianguo@cug.edu.cn
  organization: School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China. Electronic address: bjianguo@cug.edu.cn
– sequence: 3
  givenname: Chenghang
  surname: Lu
  fullname: Lu, Chenghang
  organization: School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China
– sequence: 4
  givenname: David
  surname: Werner
  fullname: Werner, David
  organization: School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, England, UK
BackLink https://www.ncbi.nlm.nih.gov/pubmed/27322748$$D View this record in MEDLINE/PubMed
BookMark eNo1j0lLBDEUhIMozqL_QCRHPXT7svR2UwZnFAYEl3OTTr8wGXozSSvz7210hIKioCi-WpDTru-QkCsGMQOW3u3jbxUc-phPKYZJUJyQOcuzIuJS5jOy8H4PAJyL4pzMeCY4z2Q-J5tXrEcd7BdSj58j-uBUsH1He0P1zvWtCkirA91ZdMrpndWqoWt8u1_jDdzSQblgdYP-gpwZ1Xi8PPqSfKwf31dP0fZl87x62EYD42mIDDdVziRALSfSWpoaskwKXZgKRZJyKFSR5pgwZnhhZCpYIpUArpnWUKUoluTmb3dw_S9u2VqvsWlUh_3oS5YzEEnGp6NLcn2sjlWLdTk42yp3KP_Pix8gJVxc
ContentType Journal Article
Copyright Copyright © 2016 Elsevier Ltd. All rights reserved.
Copyright_xml – notice: Copyright © 2016 Elsevier Ltd. All rights reserved.
DBID CGR
CUY
CVF
ECM
EIF
NPM
7U8
7X8
C1K
JXQ
DOI 10.1016/j.watres.2016.06.009
DatabaseName Medline
MEDLINE
MEDLINE (Ovid)
MEDLINE
MEDLINE
PubMed
TOXLINE
MEDLINE - Academic
Environmental Sciences and Pollution Management
Toxline
DatabaseTitle MEDLINE
Medline Complete
MEDLINE with Full Text
PubMed
MEDLINE (Ovid)
TOXLINE
MEDLINE - Academic
Environmental Sciences and Pollution Management
DatabaseTitleList MEDLINE
TOXLINE
Database_xml – sequence: 1
  dbid: NPM
  name: PubMed
  url: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed
  sourceTypes: Index Database
– sequence: 2
  dbid: 7X8
  name: MEDLINE - Academic
  url: https://search.proquest.com/medline
  sourceTypes: Aggregation Database
DeliveryMethod fulltext_linktorsrc
Discipline Engineering
EISSN 1879-2448
EndPage 81
ExternalDocumentID 27322748
Genre Research Support, Non-U.S. Gov't
Journal Article
GroupedDBID ---
--K
--M
-DZ
-~X
.DC
.~1
0R~
123
1B1
1RT
1~.
1~5
4.4
457
4G.
53G
5VS
7-5
71M
8P~
9JM
9JN
AABNK
AACTN
AAEDT
AAEDW
AAHBH
AAIKJ
AAKOC
AALRI
AAOAW
AAQFI
AAXKI
AAXUO
ABFNM
ABFRF
ABFYP
ABJNI
ABLST
ABMAC
ABQEM
ABQYD
ACDAQ
ACGFO
ACGFS
ACLVX
ACRLP
ACSBN
ADBBV
ADEZE
AEBSH
AEFWE
AEIPS
AEKER
AENEX
AFKWA
AFTJW
AFXIZ
AGHFR
AGUBO
AGYEJ
AHEUO
AHHHB
AIEXJ
AIKHN
AITUG
AJOXV
AKIFW
AKRWK
ALMA_UNASSIGNED_HOLDINGS
AMFUW
AMRAJ
ANKPU
ATOGT
AXJTR
BKOJK
BLECG
BLXMC
CGR
CS3
CUY
CVF
DU5
EBS
ECM
EFJIC
EIF
EJD
EO8
EO9
EP2
EP3
F5P
FDB
FIRID
FNPLU
FYGXN
G-Q
GBLVA
IHE
IMUCA
J1W
KCYFY
KOM
LY3
LY9
M41
MO0
N9A
NPM
O-L
O9-
OAUVE
OZT
P-8
P-9
P2P
PC.
Q38
RIG
ROL
RPZ
SCU
SDF
SDG
SDP
SES
SPC
SPCBC
SSE
SSJ
SSZ
T5K
TAE
TN5
TWZ
WH7
XPP
ZCA
ZMT
~02
~G-
~KM
7U8
7X8
AATTM
AAYWO
ACLOT
ACVFH
ADCNI
AEUPX
AFPUW
AIIUN
AKBMS
AKYEP
APXCP
C1K
EFKBS
EFLBG
JXQ
~HD
ID FETCH-LOGICAL-p126t-f2fb81400d4016d4fd07743c9fbe356209a968e511f29f463154a302c1cc0b6e3
IngestDate Sun Nov 09 13:14:17 EST 2025
Wed Feb 19 02:40:33 EST 2025
IsPeerReviewed true
IsScholarly true
Keywords Reduction
Cr(VI)
FeS@Fe hybrid particles
Nanoscale zerovalent iron
Language English
License Copyright © 2016 Elsevier Ltd. All rights reserved.
LinkModel OpenURL
MergedId FETCHMERGED-LOGICAL-p126t-f2fb81400d4016d4fd07743c9fbe356209a968e511f29f463154a302c1cc0b6e3
Notes ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
PMID 27322748
PQID 1810357222
PQPubID 23479
PageCount 9
ParticipantIDs proquest_miscellaneous_1810357222
pubmed_primary_27322748
PublicationCentury 2000
PublicationDate 2016-10-01
20161001
PublicationDateYYYYMMDD 2016-10-01
PublicationDate_xml – month: 10
  year: 2016
  text: 2016-10-01
  day: 01
PublicationDecade 2010
PublicationPlace England
PublicationPlace_xml – name: England
PublicationTitle Water research (Oxford)
PublicationTitleAlternate Water Res
PublicationYear 2016
SSID ssj0002239
Score 2.6289716
Snippet Nanoscale Fe(0) (nFe(0)) can detoxify Cr(VI)-bearing wastewater and groundwater, but rapid passivation is a negative factor for large-scale remediation...
SourceID proquest
pubmed
SourceType Aggregation Database
Index Database
StartPage 73
SubjectTerms Chromates
Chromium - chemistry
Groundwater - chemistry
Iron - chemistry
Water Pollutants, Chemical - chemistry
Title Reductive sequestration of chromate by hierarchical FeS@Fe(0) particles
URI https://www.ncbi.nlm.nih.gov/pubmed/27322748
https://www.proquest.com/docview/1810357222
Volume 102
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
journalDatabaseRights – providerCode: PRVESC
  databaseName: Elsevier SD Freedom Collection Journals 2021
  databaseCode: AIEXJ
  dateStart: 19950101
  customDbUrl:
  isFulltext: true
  eissn: 1879-2448
  dateEnd: 99991231
  titleUrlDefault: https://www.sciencedirect.com
  omitProxy: false
  ssIdentifier: ssj0002239
  providerName: Elsevier
link http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwtV1Nb9QwELVoywEOiG9aoAoSIDikchyvE98osOFD1YJgK3KL7MRuaaUk3d20y79nbCfeRYBUDlyiyFI2Ut7b8bNn_AahpxEvuWCVDIEtLKSyYqEsExwKrKkmqopGJbXNJpLJJM1z_rlPtM9tO4GkrtPlkrf_FWoYA7DN0dl_gNv_KAzAPYAOV4AdrpcC_osxY7UFQbZMevDFtfXjx7MGFKoymtP0wLZZBANSpr4-ozhTIDex2Sdoh3q5de36TRhDxd4d6Nj6lC5dabzfTHjbWVYA5Y5OO0-716Lxw13jS4A6l-5X9ZHZtF6liGb9GZxVuX2_KxExX98Gk4qLpGliUjfORtOHWkzWgqXrYTJMu9EfA7rbWzjZuxDm6IwpxWPWbxXz1QQ2JO0nn4rs8OCgmI7z6fP2LDStxUwKvu-zsoG2SDLiEPq29j-M849-wgaFxIdTlbb07_eX_X39YXXI9Ca60S8ggn0H0C10RdW30fU1W8k76J2nQPALBYJGBwMFAvkjWKdAABR4lakX-GXgwb-LDrPx9M37sG-YEbYRYYtQEy2NgxmuYNXMKqorDOo-LrmWKgahi7ngLFWgsTXhmrIY9LOIMSmjssSSqfge2qybWj1AAY0F4ZESuJKEwt9WMKUx0akUqoI1ZryNngwfpICAZLJMolZNNy9AMuJ4lIDu3Eb33ZcqWuecUoBWJiSh6c4lnn6Irq2I9QhtLmadeoyulueL7_PZLtpI8nS3R_InKjFiuw
linkProvider Elsevier
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Reductive+sequestration+of+chromate+by+hierarchical+FeS%40Fe%280%29+particles&rft.jtitle=Water+research+%28Oxford%29&rft.au=Du%2C+Jiangkun&rft.au=Bao%2C+Jianguo&rft.au=Lu%2C+Chenghang&rft.au=Werner%2C+David&rft.date=2016-10-01&rft.eissn=1879-2448&rft.volume=102&rft.spage=73&rft.epage=81&rft_id=info:doi/10.1016%2Fj.watres.2016.06.009&rft.externalDBID=NO_FULL_TEXT