Electronic Supplementary Information · Electronic Supplementary Information An Inorganic Anionic...

Electronic Supplementary Information

An Inorganic Anionic Polymer Filter Disc: Direct Crystallization of a Layered Silicate Nanosheet on

a Glass Fiber Filter

by

 Tomohiko Okada,†* Kei Shimizu,† and Tomohiko Yamakami§

† Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan

§ Technology Division, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan

* E-mail: tomohiko@shinshu-u.ac.jp

SI  1

Electronic Supplementary Material (ESI) for RSC Advances.This journal is © The Royal Society of Chemistry 2016

5.0  µm

Fig. S1. SEM image of the pristine silica fibers (ADVANTEC GB-100R).

SI  2

Fig. S2. A cross-sectional TEM image of F15q.

SI  3

1.0 µm

Inte

nsity

/a.u

.

2θ（Cu Kα）/degree

Fig. S3. (bottom) XRD pattern and (top) SEM image of the F15h fibers .

SI  4

2.0 µm 2.0 µm

Fig. S4. XRD patterns of (a) particles, which precipitated during the F50h synthesis, and (b) fibers in the filter part. SEM images of (c) the precipitates, and (d) the fiber part.

(c)

(d’) (d)

SI  5

Inte

nsity

/a.u

.

2θ（Cu Kα）/degree

< F50e >

Fig. S5. SEM images of fragments, which precipitated during the (a) F50e and (b) F15e syntheses, and (c) the XRD pattern of the precipitate in F15e synthesis.

< F15e >

(b)

(a)

(b’)

(c)

SI  6

MB

am

ount

ads

orbe

d (1

0-5 m

ol/s

heet

) MB

amount adsorbed (10

-5 mol/g)

Time (min)

0

10

20

30

40

0 20 40 60 80

F50e F50h F15h

Fig. S6. MB breakthrough curves of (a) F15e, (b) F15h, (c) F50e, (d) F50h, and (e) the adsorption isotherms of MB from aqueous solution on the Hect-coated fiber samples.

MB

am

ount

ads

orbe

d (1

0-5 m

ol)

Equilibrium concentration (10-5 mol)

SI  7

(e)

1.0 µm

Inte

nsity

/a.u

.

2θ（Cu Kα）/degree

Fig. S7. (bottom) XRD pattern and (top) SEM image of the FDq fibers.

SI  8