Membrane technology has become the mainstream process for the production of electronic grade hydrogen peroxide (H

2

O

2

). But due to the oxidation degradation of the organic membranes (

e.g

. polyamide) by the strong oxidative radicals (

e.g

.·OH) generated

via

the activation of H

2

O

2

by iron ions (Fe

3+

)

the short effective lifetime of membranes remains a challenge. Inorganic nano tin oxide (SnO

2

) has great potential for the removal of Fe

3+

in strongly oxidative H

2

O

2

because of its ability to stabilize H

2

O

2

and preferentially adsorb Fe

3+

. Herein

we have designed for the first time a flower-like robust SnO

2

membrane on the ceramic support by in situ template-free one-step hydrothermal method. The three-dimensional loose pore structure in the membrane built by interlacing SnO

2

nanosheets endows the SnO

2

membrane with a high specific surface area and abundant adsorption sites (—OH). Based on the coordination complexation and electrostatic attraction between the SnO

2

surface and Fe

3+

the membran

e shows a high Fe

3+

removal efficiency (83%) and permeability (24 L·m

-2

·h

-1

·MPa

-1

) in H

2

O

2

. This study provides an innovative and simple approach to designing robust SnO

2

membranes for highly efficient removal of Fe

3+

in harsh environments

such as strong oxidation conditions.