Abstract
The H2xMnxSn3-xS6 (x 0.11-0.25) is a new solid acid with a layered hydrogen metal sulfide (LHMS). It derives from K2xMnxSn3-xS6 (x 0.5.....0.95) (KMS-1) upon treating it with highly acidic: solutions. We demonstrate that LHMS-1 has enormous affinity for the very soft metal ions such as Hg 2+ and Ag+ which occurs via a rapid ion exchange process. The tremendous affinity of LHMS-1 for Hg2+ is reflected in very high distribution coefficient KdHg values(>106 mL g-1). The large affinity and selectivity of LHMS-1 for Hg 2+ persists in a very wide pH range (from less than zero to nine} and even in the presence of highly concentrated HCI and HNO3 acids. LHMS-1 is significantly more selective for Hg2+ and Ag+ than for the less soft cations Pb2+ and Cd2+. The Hg 2+ ions are immobilized in octahedral sites between the sulfide layers of the materials via Hg-S bonds as suggested by pair distribution function (PDF) analysis. LHMS-1 could decrease trace concentrations of Hg 2+ (e.g.
| Original language | English |
|---|---|
| Pages (from-to) | 1087-1092 |
| Number of pages | 6 |
| Journal | Advanced Functional Materials |
| Volume | 19 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Apr 9 2009 |
Fingerprint
ASJC Scopus subject areas
- Biomaterials
- Electrochemistry
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
H2xMnxSn3-xS6 (x = 0.11-0.25) : A novel reusable sorbent for highly specific mercury capture under extreme pH conditions. / Manos, Manolis J.; Petkov, Valeri G.; Kanatzidis, Mercouri G.
In: Advanced Functional Materials, Vol. 19, No. 7, 09.04.2009, p. 1087-1092.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - H2xMnxSn3-xS6 (x = 0.11-0.25)
T2 - A novel reusable sorbent for highly specific mercury capture under extreme pH conditions
AU - Manos, Manolis J.
AU - Petkov, Valeri G.
AU - Kanatzidis, Mercouri G
PY - 2009/4/9
Y1 - 2009/4/9
N2 - The H2xMnxSn3-xS6 (x 0.11-0.25) is a new solid acid with a layered hydrogen metal sulfide (LHMS). It derives from K2xMnxSn3-xS6 (x 0.5.....0.95) (KMS-1) upon treating it with highly acidic: solutions. We demonstrate that LHMS-1 has enormous affinity for the very soft metal ions such as Hg 2+ and Ag+ which occurs via a rapid ion exchange process. The tremendous affinity of LHMS-1 for Hg2+ is reflected in very high distribution coefficient KdHg values(>106 mL g-1). The large affinity and selectivity of LHMS-1 for Hg 2+ persists in a very wide pH range (from less than zero to nine} and even in the presence of highly concentrated HCI and HNO3 acids. LHMS-1 is significantly more selective for Hg2+ and Ag+ than for the less soft cations Pb2+ and Cd2+. The Hg 2+ ions are immobilized in octahedral sites between the sulfide layers of the materials via Hg-S bonds as suggested by pair distribution function (PDF) analysis. LHMS-1 could decrease trace concentrations of Hg 2+ (e.g.
AB - The H2xMnxSn3-xS6 (x 0.11-0.25) is a new solid acid with a layered hydrogen metal sulfide (LHMS). It derives from K2xMnxSn3-xS6 (x 0.5.....0.95) (KMS-1) upon treating it with highly acidic: solutions. We demonstrate that LHMS-1 has enormous affinity for the very soft metal ions such as Hg 2+ and Ag+ which occurs via a rapid ion exchange process. The tremendous affinity of LHMS-1 for Hg2+ is reflected in very high distribution coefficient KdHg values(>106 mL g-1). The large affinity and selectivity of LHMS-1 for Hg 2+ persists in a very wide pH range (from less than zero to nine} and even in the presence of highly concentrated HCI and HNO3 acids. LHMS-1 is significantly more selective for Hg2+ and Ag+ than for the less soft cations Pb2+ and Cd2+. The Hg 2+ ions are immobilized in octahedral sites between the sulfide layers of the materials via Hg-S bonds as suggested by pair distribution function (PDF) analysis. LHMS-1 could decrease trace concentrations of Hg 2+ (e.g.
UR - http://www.scopus.com/inward/record.url?scp=64549110694&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=64549110694&partnerID=8YFLogxK
U2 - 10.1002/adfm.200801563
DO - 10.1002/adfm.200801563
M3 - Article
VL - 19
SP - 1087
EP - 1092
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 7
ER -