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Supporting Information for:

One for Two: Conversion of Waste Chicken Feathers to

Carbon Microspheres and (NH4)HCO3

Lei Gao††††,‡‡‡‡, Haibo Hu

††††,, Xuelin Sui‡‡‡‡, Changle Chen,

*,‡‡‡‡ & Qianwang Chen

*,††††

Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory

of Soft Matter Chemistry, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China

*To whom correspondence should be addressed. Telephone: +86-551-63607251. Fax:

+86-551-63603005. E-mail: cqw@ustc.edu.cn or changle@ustc.edu.cn

† Hefei National Laboratory for Physical Sciences at Microscale, University of

Science and Technology of China ‡ CAS Key Laboratory of Soft Matter Chemistry and Department of Polymer Science

and Engineering, University of Science and Technology of China

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Figure S1. Photo of (a) feather quills, and (b) FESEM images of the samples prepared

by dissociating 1.0 g of feather quills in 12 g of CO2 at 600 °C for 3 h.

Figure S2. Photo of (a) feather barbs, and (b) FESEM images of the samples prepared

by dissociating 1.0 g of feather barbs in 12 g of CO2 at 600 °C for 3 h.

Figure S3. FT-IR spectra of the feather quills and barbs.

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Figure S4. (a, b)FESEM images of the samples prepared by dissociating 1.0 g of

chicken feathers without CO2 at 600 °C for 3 h.

Figure S5. FESEM images of the samples prepared by dissociating 1.0 g of (a)

L-Glutamic Acid, (b) L-Lysine, (c) P-Aminobenzoic Acid, (d) Polyacrylamide, (e, f)

Polycaprolactam, in 12 g of CO2 at 600 °C for 3 h..

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Table S1. The contact angles of all the samples. In each treatment, five pieces of

fabrics were used to measure the contact angles. The contact angles of two water

drops on each piece of fabric were obtained. The SD meant the standard deviation.

Sample 1 2 3 4 5 6 7 8 9 10 Mean SD

PDMS 145 148 147 147 144 149 146 146 143 145 146.0 1.7

CMS (0.2 g) 150 151 156 152 154 153 154 154 153 155 153.2 1.7

ACMS (0.2 g) 163 163 165 167 170 167 164 162 163 168 165.2 2.5

ACMS (0.1 g) 150 153 151 150 150 155 151 151 150 152 151.3 1.5

ACMS (0.3 g) 151 157 153 151 159 154 161 157 159 158 156.0 3.3

Figure S6. FT-IR spectra of the obtained (NH4)HCO3 and the authentic (NH4)HCO3

samples..

Table S2. Elemental analysis of the obtained (NH4)HCO3 and the authentic

(NH4)HCO3 samples.

Sample C, wt.% N, wt.% H, wt.% O, wt.%

Pure (NH4)HCO3 14.53 18.39 6.45 60.63

Obtained (NH4)HCO3 14.72 18.35 6.38 60.55

Theoretical value 15.19 17.72 6.37 60.71