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Table 1 Variation of the coating material amount

From: Coating of magnetite with mercapto modified rice hull ash silica in a one-pot process

Product

Volume/amount of coating agents

 

Na2SiO3(mL/mole SiO2)

MPTMS (mL/mole)

Fe3O4-SH

0.0/0.0

1.27/6.8

Fe3O4- SiO2-SH (25:75)

1.5/1.7

0.95/5.1

Fe3O4- SiO2-SH (50:50)

3.0/3.4

0.63/3.4

Fe3O4- SiO2-SH (75:25)

4.5/5.1

0.32/1.7

Fe3O4- SiO2

6.0/6.8

0.00/0.0