Abstract
Birnessite is one of the dominant Mn (oxyhydr)oxide phases commonly found in soil and deep ocean environments. It typically occurs as nano-sized and poorly crystalline aggregates in the natural environment. It is well known that birnessite participates in a wide variety of bio/geochemical reactions as a reactive mineral phase with structural defects, cation vacancies, and mixed valences of structural Mn. These various bio/geochemical reactions control not only the fate and transport of inorganic and organic substances in the environment, but also the formation of diverse Mn (oxyhydr)oxides through birnessite transformation. This review assessed and discussed about the phase transformation of birnessite under a wide range of environmental conditions and about the potential geochemical factors controlling the corresponding reactions in the literature. Birnessite transformation to other types of Mn (oxyhydr)oxides were affected by dissolved Mn(II), dissolved oxygen, solution pH, and co-existing cation (i.e., Mg2+). However, there still have been many issues to be unraveled on the complex bio/geochemical processes involved in the phase transformation of birnessite. Future work on the detail mechanisms of birnessite transformation should be further investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 545-554 |
| Number of pages | 10 |
| Journal | Economic and Environmental Geology |
| Volume | 50 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2017 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Geology
- Economic Geology
- Environmental Science (miscellaneous)
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A review of geochemical factors governing the phase transformation of birnessite. / Namgung, Seonyi; Chon, Chul Min; Lee, Giehyeon.
In: Economic and Environmental Geology, Vol. 50, No. 6, 01.12.2017, p. 545-554.Research output: Contribution to journal › Review article
TY - JOUR
T1 - A review of geochemical factors governing the phase transformation of birnessite
AU - Namgung, Seonyi
AU - Chon, Chul Min
AU - Lee, Giehyeon
PY - 2017/12/1
Y1 - 2017/12/1
N2 - Birnessite is one of the dominant Mn (oxyhydr)oxide phases commonly found in soil and deep ocean environments. It typically occurs as nano-sized and poorly crystalline aggregates in the natural environment. It is well known that birnessite participates in a wide variety of bio/geochemical reactions as a reactive mineral phase with structural defects, cation vacancies, and mixed valences of structural Mn. These various bio/geochemical reactions control not only the fate and transport of inorganic and organic substances in the environment, but also the formation of diverse Mn (oxyhydr)oxides through birnessite transformation. This review assessed and discussed about the phase transformation of birnessite under a wide range of environmental conditions and about the potential geochemical factors controlling the corresponding reactions in the literature. Birnessite transformation to other types of Mn (oxyhydr)oxides were affected by dissolved Mn(II), dissolved oxygen, solution pH, and co-existing cation (i.e., Mg2+). However, there still have been many issues to be unraveled on the complex bio/geochemical processes involved in the phase transformation of birnessite. Future work on the detail mechanisms of birnessite transformation should be further investigated.
AB - Birnessite is one of the dominant Mn (oxyhydr)oxide phases commonly found in soil and deep ocean environments. It typically occurs as nano-sized and poorly crystalline aggregates in the natural environment. It is well known that birnessite participates in a wide variety of bio/geochemical reactions as a reactive mineral phase with structural defects, cation vacancies, and mixed valences of structural Mn. These various bio/geochemical reactions control not only the fate and transport of inorganic and organic substances in the environment, but also the formation of diverse Mn (oxyhydr)oxides through birnessite transformation. This review assessed and discussed about the phase transformation of birnessite under a wide range of environmental conditions and about the potential geochemical factors controlling the corresponding reactions in the literature. Birnessite transformation to other types of Mn (oxyhydr)oxides were affected by dissolved Mn(II), dissolved oxygen, solution pH, and co-existing cation (i.e., Mg2+). However, there still have been many issues to be unraveled on the complex bio/geochemical processes involved in the phase transformation of birnessite. Future work on the detail mechanisms of birnessite transformation should be further investigated.
UR - http://www.scopus.com/inward/record.url?scp=85044542102&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044542102&partnerID=8YFLogxK
U2 - 10.9719/EEG.2017.50.6.545
DO - 10.9719/EEG.2017.50.6.545
M3 - Review article
VL - 50
SP - 545
EP - 554
JO - Economic and Environmental Geology
JF - Economic and Environmental Geology
SN - 1225-7281
IS - 6
ER -