PMID- 36680820
OWN - NLM
STAT- MEDLINE
DCOM- 20230210
LR  - 20230210
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 231
DP  - 2023 Mar 1
TI  - Photoinduced transformation of ferrihydrite in the presence of aqueous sulfite 
      and its influence on the repartitioning of Cd.
PG  - 119607
LID - S0043-1354(23)00042-8 [pii]
LID - 10.1016/j.watres.2023.119607 [doi]
AB  - The photoinduced transformation of ferrihydrite is an important process that can 
      predict the geochemical cycle of Fe in anoxic environments as well as the fate of 
      trace elements bonded to Fe minerals. We report that the photooxidation of 
      sulfite by UV irradiation produces hydrated electrons (super-reductants), which 
      significantly promote ferrihydrite reduction to Fe(II), and SO(3)(*-) (a moderate 
      oxidant), enabling its further oxidation to more crystalline Fe(III) products. 
      The experimental results show that the concentration of sulfite was key in 
      influencing the rate and extent of surface-bound Fe(II) formation, which 
      ultimately determined the distribution of individual products. For example, 
      fitting of the Mossbauer spectroscopy data revealed that the relative abundances 
      of mineral species after 8 h of treatment in the UV/sulfite systems were 41.9% 
      lepidocrocite and 58.1% ferrihydrite at 2 mM SO(3)(2-); 41.8% goethite, 28.2% 
      lepidocrocite, and 29.1% ferrihydrite at 5 mM SO(3)(2-); and 100% goethite at 
      10 mM SO(3)(2-). The combined results of the chemical speciation analysis and the 
      Cd K-edge EXAFS characterization provided compelling evidence that Cd was firmly 
      incorporated into the structure of newly formed minerals, particularly at high 
      sulfite concentrations. These findings provide an understanding of the role of 
      UV/sulfite in facilitating ferrihydrite transformation and promoting Cd 
      stabilization in oxygen-deficit soils and aquatic environments.
CI  - Copyright (c) 2023 Elsevier Ltd. All rights reserved.
FAU - Qiu, Jinwen
AU  - Qiu J
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China.
FAU - Hou, Xiaokang
AU  - Hou X
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China.
FAU - Ren, Yuan
AU  - Ren Y
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China.
FAU - Liu, Chengshuai
AU  - Liu C
AD  - State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, 
      Chinese Academy of Sciences, Guiyang 550081, PR China.
FAU - Meng, Fangyuan
AU  - Meng F
AD  - State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, 
      Chinese Academy of Sciences, Guiyang 550081, PR China.
FAU - Lee, Jyh-Fu
AU  - Lee JF
AD  - National Synchrotron Radiation Research Center, Hsinchu, Taiwan 30076, ROC.
FAU - Lin, Yu-Jung
AU  - Lin YJ
AD  - National Synchrotron Radiation Research Center, Hsinchu, Taiwan 30076, ROC.
FAU - Huang, Ziyuan
AU  - Huang Z
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China.
FAU - Ma, Huanxin
AU  - Ma H
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China.
FAU - Shi, Zhenqing
AU  - Shi Z
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China.
FAU - Feng, Chunhua
AU  - Feng C
AD  - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, 
      Ministry of Education, School of Environment and Energy, South China University 
      of Technology, Guangzhou 510006, PR China. Electronic address: 
      chfeng@scut.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20230112
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 87PZU03K0K (ferric oxyhydroxide)
RN  - 1K09F3G675 (ferric oxide)
RN  - 0 (Ferric Compounds)
RN  - 1310-14-1 (goethite)
RN  - E1UOL152H7 (Iron)
RN  - 00BH33GNGH (Cadmium)
RN  - 0 (Minerals)
RN  - 059QF0KO0R (Water)
RN  - 0 (Ferrous Compounds)
SB  - IM
MH  - *Ferric Compounds/chemistry
MH  - *Iron/chemistry
MH  - Cadmium
MH  - Minerals/chemistry
MH  - Water
MH  - Oxidation-Reduction
MH  - Ferrous Compounds
OTO - NOTNLM
OT  - Advanced reduction process
OT  - Cd immobilization
OT  - Fe cycle
OT  - Fe(II) catalysis
OT  - Ferrihydrite transformation
OT  - Photoinduced reactive species
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- 2023/01/22 06:00
MHDA- 2023/02/11 06:00
CRDT- 2023/01/21 18:04
PHST- 2022/10/30 00:00 [received]
PHST- 2023/01/10 00:00 [revised]
PHST- 2023/01/11 00:00 [accepted]
PHST- 2023/01/22 06:00 [pubmed]
PHST- 2023/02/11 06:00 [medline]
PHST- 2023/01/21 18:04 [entrez]
AID - S0043-1354(23)00042-8 [pii]
AID - 10.1016/j.watres.2023.119607 [doi]
PST - ppublish
SO  - Water Res. 2023 Mar 1;231:119607. doi: 10.1016/j.watres.2023.119607. Epub 2023 
      Jan 12.