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Table 4 Yield of coated magnetite materials before and after washing with deionized water and fraction of coated material

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

Product

Weight (g)

Weight fraction of coated material (%)

 

Before washing

After washing

 

Fe3O4- SiO2

1.84

0.70

28.57

Fe3O4- SiO2-SH (75/25)

1.96

0.95

47.37

Fe3O4- SiO2-SH (50/50)

1.52

0.91

45.05

Fe3O4- SiO2-SH (25/75)

1.43

1.00

50.00

Fe3O4-SH

1.17

1.17

57.27