Supplementary information for:

Preparation of a new adsorbent-supported Fe/Ni particles for removal of crystal

violet and methylene blue by a heterogeneous Fenton-like reaction

Jiwei Liu, ab Yufeng Du,a Wuyang Sun,a Quanchao Chang,a Changsheng Pengac

a The Key Lab of Marine Environmental Science and Ecology of Ministry of

Education, Ocean University of China, Qingdao 266100, China

b School of Environment, Tsinghua University, Beijing, 100084, China

c School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing,

526061, China

*Correspondence author:

Prof. Changsheng Peng

E-mail: pcs005@ouc.edu.cn

The following is included as additional Supplementary information for this paper.

Electronic Supplementary Material (ESI) for RSC Advances.This journal is © The Royal Society of Chemistry 2019

Enteromorpha

Mixing

BentoniteFly ash

PM-Fe/NiPM

Forming

Drying

Sintering

FeCl3 ·6H2O

NaBH4NiSO4·6H2ONaOH

Nanoparticles synthesis

Fig. S1 Schematic diagram of PM-Fe/Ni preparation.

a b

c d

10 20 30 40 50 60 70

e

Inte

nsity

(a.u

.)

2 theta (degree)

PM-Fe/Ni PM

Fe0

SiO2

SiO2

SiO2

SiO2

Fe0(110)(200)

4000 3500 3000 2500 2000 1500 1000 500

Fe-OOH

OH

COOHCOOH

COOHCOOH

h

PA-Fe/Ni PA

Wavenumber (cm-1)

Tran

smitt

ance

(%)

f PM-Fe/NiPM

0.0 0.2 0.4 0.6 0.8 1.0

0

10

20

30

40

50

60

Qua

nlity

abs

orbe

d (c

m3 /g

)

Relative pressure (P/P0)

PA

0 10 20 30 40 50 60 70

0.000

0.002

0.004

0.006

0.008

0.010

Pore

vol

ume (

cm3 /g

nm

)

Pore diameter (nm)

g PM

0.0 0.2 0.4 0.6 0.8 1.0

0

10

20

30

40

50

60

70

80

Qua

nlity

abs

orbe

d (c

m3 /g

)

Relative pressure (P/P0)

PA-Fe/Ni

0 10 20 30 40 50 60 70

0.000

0.003

0.006

0.009

0.012

0.015

Pore

vol

ume (

cm3 /g

nm

)

Pore diameter (nm)

h PM-Fe/Ni

Fig. S2 SEM images of PM(a) and PM -Fe/Ni (b); Elemental mapping images of Fe (c) and Ni (d) in PM -Fe/Ni;

XRD images of PM and PM -Fe/Ni (e); FTIR images of PM and PM -Fe/Ni (f); N2 adsorption-desorption curve

and pore size distribution curve of PM (g) and PM -Fe/Ni (h).

0

20

40

60

80

100a

PM/Fe mass ratio5:17:1 3:1 1:1

Rem

oval

effic

iency

(%)

0

10

20

30

40

50

60 b

Re

mov

al ef

ficien

cy (%

)

PM/Fe mass ratio7:1 5:1 3:1 1:1

Fig. S3 The effect of PM/Fe mass ratio on the removal of CV (a) and MB (b).

a

b

Fig. S4 Possible removal mechanism of CV (a) and MB (b) under Fenton-like processes.

10 20 30 40 50 60 70

PM-Fe/Ni (CV)

PM-Fe/Ni (MB)

Fe0

Inte

nsity

(a.u

.)

2 theta (degree)

PM-Fe/NiFe2O3

Fig. S5 XRD images of PM -Fe/Ni after CV and MB removal.

Table S1 Comparative data for the catalytic ability of various materials and PM-Fe/Ni for the

removal of CV and MB.

Catalyst Conditions R (%) Reference

PM-Fe/Ni Dose: 0.2 g; H2O2: 50 mM; pH: 3;

CV: 1000 mg/L (100 mL); 20℃

91.86 This work

MMT+Fe(II) Dose: 3 g/L; H2O2: 50 mM; pH: 3;

CV: 012 mM (100 mL); 25℃;

Visible light: 1.5×1018 photos/s at 366 nm

99.91 1

FeSO4·7H2O Dose: 0.5 mM; H2O2: 50 mM; pH: 5;

CV: 015 mM (100 mL); 25℃

97.00 2

FeGAC Dose: 1.5 g/L; H2O2: 7.4 mM; pH: 3;

CV: 10 mg/L (100 mL); 25℃

71.00 3

Fe/AC Dose: 2.5 g/L; Qzone: 4.44 mg/min; 300 mL/min gas flow

rate; pH: 7; CV: 400 mg/L (100 mL); 25℃

96.00 4

PM-Fe/Ni Dose: 0.2 g; H2O2: 50 mM; pH: 3;

MB:1000 mg/L (100 mL); 20℃

61.41 This work

Fe(II)Fe(III)-LDHs Dose: 0.1 g/L; H2O2: 0.01 mm/L; pH: 4;

MB: 10 mg/L (100 mL); At ambient temperature

100.00 5

Fe3O4/BAC Dose: 1.2 g/L; H2O2: 0.23 mol/L; pH: 7;

MB: 10 mg/L (100 mL); 30℃

98.00 6

MPCMS-500 Dose: 2 g/L; H2O2: 16 mmol/L; NH2OH: 4 mM; pH: 5;

MB: 40 mg/L(10 mL); 30℃

98.00 7

PMS-Fe-380 Dose: 1 g/L; H2O2: 1 g/L; pH: 4;

MB: 50 mg/L (100 mL); 30℃

94.20 8

References

1. L. Guz, G. Curutchet, R. M. T. Sánchez and R. Candal, J. Environ. Chem. Eng., 2014, 2, 2344-

2351.

2. H. J. Fan, S. T. Huang, W. H. Chung, J.L. Jan, W. Y. Lin and C .C. Che, J. Hazard. Mater.,

2009, 171, 1032–1044.

3. C. C. Chen, W. C. Chen, M. R. Chiou, S. W. Chen, Y. Y. Chen and H. J. Fan, J. Hazard.

Mater., 2011, 196, 420-425.

4. J. Wu, Hong Gao, S. Yao, L. Chen, Y. W. Gao and H. Zhang, Sep. Purif. Technol., 2015, 147,

179-185.

5. Q. Wang, S. L. Tian , J. Long and P. Ning, Catal. Today, 2014, 224, 41–48.

6. X. Liu, S. X. Zhang, H. Luo, Y. Y. Zhang, Q. Xu, Z. Y. Zhang , H. Xu and Z. H. Wan, J.

Taiwan Inst. Chem. E., 2017, 81, 265–274.

7. L. C. Zhou, Y. M. Shao, J. R. Liu, Z. F. Ye, H. Zhang, J. J. Ma, Y. Jia, W. J. Gao and Y. F. Li,

ACS Appl. Mater. Interfaces, 2014, 6, 7275-7285.

8. G. Q. Zhou, Z. W. Chen, F. Fang, Y. F. He, H. L. Sun and H. X. Shi, J. Environ. Sci., 2015, 35,

20-26.