SupportingInformation

Highly Efficient Removal of Geosmin and 2-Methylisoborneol by Carboxylated Multi-Walled Carbon Nanotubes

Xiaodong Xin, Mingquan Wang, Xuan Ge, Qinghua Zhao, Shaohua Sun, Ruibao Jia *

Jinan Water and Waste Water Monitoring Center, Jinan 250021, China

* To whom all correspondence should be addressed

Tel: + 86-531-55589613

Fax: + 86-531-55589600

E-mail: (R.B. Jia), (X.D. Xin)

Number of Pages: 5

Number of Tables: 2

Number of Figures: 1

TableS1Selectedparametersofcarbonnanotubes

Adsorbents / Diameter (nm) / Length (μm) / Purity (%) / Ash (%) / Special surface area (m2/g) / Amorphous carbon (%)
MWCNs / 10-20 / 10-30 / 95 / 0.2 / 40-300 / 3
MWCNs / 20-30 / 10-30 / 95 / 0.2 / 40-300 / 3
MWCNs / 30-50 / 10-20 / 95 / 0.2 / 40-300 / 3

Table S2Constants and correlation coefficients of adsorption isotherms for the adsorption

Model / Parameter / GSM / 2-MIB
Langmuir equation / qm (μg/g) / 23.56 / 23.52
b (L/μg) / 108.86 / 149.60
R2 / 0.9997 / 0.9971
Freundlich equation / KF / 23.42 / 23.41
n / 37.22 / 51.63
R2 / 0.8890 / 0.8700
Henry equation / KH / 1.013 / 0.6353
R2 / 0.5841 / 0.5315
Temkin equation / B / 0.4436 / 0.6098
R2 / 0.8942 / 0.8760

Figure S1 Comparison of different kinds of MWCNs: 1, MWCNs with 10~30 μm in Length and 10-20 nm in Diameter; 2, MWCNs with 10~30 μm in Length and 20-30 nm in Diameter; 3, MWCNs with 10~20 μm in Length and 30-50 nm in Diameter; 4, C-MWCNs with 10~30 μm in Length and 10-20 nm in Diameter; 5, C-MWCNs with 10~30 μm in Length and 20-30 nm in Diameter; 6, C-MWCNs with 10~20 μm in Length and 30-50 nm in Diameter.

S1