Abstract
Cationic polymers prepared from partially neutralized ferric chloride solutions were investigated using photon correlation spectroscopy (PCS) techniques. To study the speciation and yield of the polymers, FeCl3 solutions were hydrolyzed by adding NaHCO3 solution for a range of hydrolysis ratios (B=[OH]/FeT) of 0 to 2.0 under different base addition rates. It was observed that the prepared solution has a higher degree of polymerization at a higher base addition rate. The "B rate" (RB, 1/time), i.e., the rate of change of B during preparation, was found to have a dramatic effect on the speciation of the partially neutralized ferric chloride solution. High-yield inorganic iron(III) polymer (∼80%) can be produced in a specific range of B rates. These iron(III) polymers, having a size ranging from 3 to 7 nm, were stable without precipitation of ferric hydroxide microcolloids after aging for 2 weeks.
| Original language | English |
|---|---|
| Pages (from-to) | 542-547 |
| Number of pages | 6 |
| Journal | Journal of Colloid And Interface Science |
| Volume | 284 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2005 Apr 15 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Surfaces, Coatings and Films
- Colloid and Surface Chemistry
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Effect of base addition rate on the preparation of partially neutralized ferric chloride solutions. / Liu, Ta-Kang; Chian, Edward S.K.
In: Journal of Colloid And Interface Science, Vol. 284, No. 2, 15.04.2005, p. 542-547.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of base addition rate on the preparation of partially neutralized ferric chloride solutions
AU - Liu, Ta-Kang
AU - Chian, Edward S.K.
PY - 2005/4/15
Y1 - 2005/4/15
N2 - Cationic polymers prepared from partially neutralized ferric chloride solutions were investigated using photon correlation spectroscopy (PCS) techniques. To study the speciation and yield of the polymers, FeCl3 solutions were hydrolyzed by adding NaHCO3 solution for a range of hydrolysis ratios (B=[OH]/FeT) of 0 to 2.0 under different base addition rates. It was observed that the prepared solution has a higher degree of polymerization at a higher base addition rate. The "B rate" (RB, 1/time), i.e., the rate of change of B during preparation, was found to have a dramatic effect on the speciation of the partially neutralized ferric chloride solution. High-yield inorganic iron(III) polymer (∼80%) can be produced in a specific range of B rates. These iron(III) polymers, having a size ranging from 3 to 7 nm, were stable without precipitation of ferric hydroxide microcolloids after aging for 2 weeks.
AB - Cationic polymers prepared from partially neutralized ferric chloride solutions were investigated using photon correlation spectroscopy (PCS) techniques. To study the speciation and yield of the polymers, FeCl3 solutions were hydrolyzed by adding NaHCO3 solution for a range of hydrolysis ratios (B=[OH]/FeT) of 0 to 2.0 under different base addition rates. It was observed that the prepared solution has a higher degree of polymerization at a higher base addition rate. The "B rate" (RB, 1/time), i.e., the rate of change of B during preparation, was found to have a dramatic effect on the speciation of the partially neutralized ferric chloride solution. High-yield inorganic iron(III) polymer (∼80%) can be produced in a specific range of B rates. These iron(III) polymers, having a size ranging from 3 to 7 nm, were stable without precipitation of ferric hydroxide microcolloids after aging for 2 weeks.
UR - http://www.scopus.com/inward/record.url?scp=15244350856&partnerID=8YFLogxK
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U2 - 10.1016/j.jcis.2004.10.064
DO - 10.1016/j.jcis.2004.10.064
M3 - Article
VL - 284
SP - 542
EP - 547
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
SN - 0021-9797
IS - 2
ER -