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Table 1 The basic properties of the different apatites

From: Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment

Material

Particle

Purity (%)

Shape

BET (m2 g−1)

pH

Zeta potential (mV)

Pb (mg kg−1)

Cu (mg kg−1)

Zn (mg kg−1)

Cd (mg kg−1)

Ca/P

NAP

60 nm

>96

Acicular

68.8

7.07

−5.55

10.8

3.77

9.81

0.474

1.70

MAP

12 μm

>96

Sphere

42.8

7.23

−44.4

8.94

21.6

20.5

0.454

1.61

OAP

0.15 mm

>96

Bulk

1.25

9.70

−17.0

18.2

11.2

18.6

0.469

2.12

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