TY - JOUR
T1 - One-step turning leather wastes into heteroatom doped carbon aerogel for performance enhanced capacitive deionization
AU - Liu, Yihan
AU - Zhang, Xiongfei
AU - Gu, Xiao
AU - Wu, Ningxiang
AU - Zhang, Runan
AU - Shen, Yu
AU - Zheng, Bing
AU - Wu, Jiansheng
AU - Zhang, Weina
AU - Li, Sheng
AU - Huo, Fengwei
N1 - Publisher Copyright:
© 2020
PY - 2020/8/15
Y1 - 2020/8/15
N2 - Exploring advanced electrode material is indispensable for achieving enhanced capacitive deionization (CDI) performance. Utilizing low-cost and eco-friendly leather wastes as precursors, herein a carbon aerogel with rich N, O and S doping has been constructed by a one-step activated pyrolysis process. Distortional carbon nanocrystallites (DCNs) in the material and its self hetero-doping could provide uneven surface charge distributions, thus improving both the electronic and ions conductivities, as well as water wettability of the electrode. Besides, the defects from its structure and doping could also act as active sites, boosting the adsorption capacity. In addition, the obtained aerogel exhibits a specific surface area of as high as 2523 m2 g−1 with abundant micropores, which is also favorable to salt ions storage. Therefore, CDI cell comprised of the carbon aerogel electrodes exhibits a maximum salt adsorption capacity (mSAC) of 20.92 mg g−1 and a significantly higher average salt adsorption rate (ASAR) in comparison with commercial active carbon.
AB - Exploring advanced electrode material is indispensable for achieving enhanced capacitive deionization (CDI) performance. Utilizing low-cost and eco-friendly leather wastes as precursors, herein a carbon aerogel with rich N, O and S doping has been constructed by a one-step activated pyrolysis process. Distortional carbon nanocrystallites (DCNs) in the material and its self hetero-doping could provide uneven surface charge distributions, thus improving both the electronic and ions conductivities, as well as water wettability of the electrode. Besides, the defects from its structure and doping could also act as active sites, boosting the adsorption capacity. In addition, the obtained aerogel exhibits a specific surface area of as high as 2523 m2 g−1 with abundant micropores, which is also favorable to salt ions storage. Therefore, CDI cell comprised of the carbon aerogel electrodes exhibits a maximum salt adsorption capacity (mSAC) of 20.92 mg g−1 and a significantly higher average salt adsorption rate (ASAR) in comparison with commercial active carbon.
KW - Capacitive deionization
KW - Carbon aerogel
KW - Heteroatom doping
KW - Leather wastes
KW - Microporous electrode
UR - http://www.scopus.com/inward/record.url?scp=85085068678&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2020.110303
DO - 10.1016/j.micromeso.2020.110303
M3 - 文章
AN - SCOPUS:85085068678
SN - 1387-1811
VL - 303
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
M1 - 110303
ER -