Appendix :

Table S1 Comparison of adsorption capacity for CR, MB and MOat 298 K.

Table S2 Zeta potentials of Cu2(OH)3NO3.

Supplementary Information

Highly selective adsorption of dye containing sulphonic groups into Cu2(OH)3NO3 nanosheets

Jincan Jiaa·Honghong Wanga·Helin Niua*·Jingshuai Chena·Jiming Songa·Changjie Maoa·Shengyi Zhanga·Yuanhao Gaob·Changle Chenc

* Corresponding author: E-mail:

Tel: +86 0551 65107342 Fax: +86 0551 65107342

Table S1Comparison of adsorption capacity for CR, MB and MOat 298 K.

adsorbent / q0 (mgg-1) / Reference
MB / Ni-MCM-41 / 157.48 / 1
MnFe2O4 / 148.04 / 2
LDH−carbon dots / 185 / 3
EFB fibers (PEI) / 158.7 / 4
Cu2(OH)3NO3 / 1270 / this work
CR / CoFe2O4 / 190.5 / 5
Mg–Al-CO3-LDH / 37.16 / 6
Ni-α-Fe2O3 / 645 / 7
ZnO/SnO2 / 85.5 / 8
Cu2(OH)3NO3 / 1864 / this work
MO / MnCo2O4 / 185.14 / 9
ZnAl-LDH / 523 / 10
CuZn–HDS / 847 / 11
Mg/Fe-LDH / 194.9 / 12
Cu2(OH)3NO3 / 959 / this work

Fig. S1. The structure of (a) methyl blue; (b) congo red; (c) methyl orange; (d) methylene blue.

Fig. S2. FTIR spectra of (a) Cu2(OH)3NO3and (b) Cu2(OH)3NO3-YMB

Table S2Zeta potentials of Cu2(OH)3NO3.

Sample / 1 / 2 / 3 / average value
Zeta potential/mV / 47.6 / 42.9 / 48.4 / 46.3

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