Table 1 The physicochemical parameters of ST20 and ST20-ALG
From: Titania-Coated Silica Alone and Modified by Sodium Alginate as Sorbents for Heavy Metal Ions
Parameter | ST20 | ST20-ALG |
|---|---|---|
Particle size range | 15–20 nm | 1.2 mm beads or powder |
Moisture content | > 5% | > 30% |
SBET (m2 g− 1) | 53 | 42 |
Vtotal (cm3 g− 1) | 0.205 | 0.178 |
Smacro (m2 g− 1) | 13 | 11 |
Vmacro (cm3 g− 1) | 0.148 | 0.128 |
Smeso (m2 g− 1) | 40 | 32 |
Vmeso (cm3 g− 1) | 0.057 | 0.032 |