标題: Cellular Structured CNTs@SiO(2)Nanofibrous Aerogels with Vertically Aligned Vessels for Salt-Resistant Solar Desalination

作者: Dong, XY (Dong, Xiangyang); Cao, LT (Cao, Leitao); Si, Y (Si, Yang); Ding, B (Ding, Bin); Deng, HB (Deng, Hongbing)

來源出版物: ADVANCED MATERIALS 文獻号: 1908269 DOI: 10.1002/adma.201908269 提前訪問日期: JUL 2020

摘要: The emerging solar desalination technology is considered as one of the most promising strategies to ensure water security. However, with the proceeding of solar desalination, salt crystallization on the surface of solar evaporators caused by increasing salinity of seawater will result in a decrease in the evaporation rate. Thus, it is still challenging to fabricate solar evaporators with superior salt resistance. In this work, elastic ceramic-based nanofibrous aerogels with a cellular architecture are fabricated by the combination of electrospinning and fiber freeze-shaping technologies, which are composed of vertically aligned vessels and porous vessel walls. Under the action of convection and diffusion promoted by this unique cellular architecture, the aerogels exhibit a superior salt-resistance without any salt crystals on the surface of aerogels even in 20% brine and under 6-sun irradiation. Moreover, by virtue of the synergistic effect of the promising structure and light absorbance of carbon nanotubes, aerogels possess a high light absorbance of up to 98% and excellent evaporation performance achieving 1.50 kg m(-2)h(-1)under 1-sun irradiation. This work may provide a fascinating avenue for the desalination of seawater in a salt-resistance and efficient manner.

入藏号: WOS:000549867400001

PubMed ID: 32686159

語言: English

文獻類型: Article; Early Access

作者關鍵詞: electrospun nanofibers; fibrous aerogels; salt-resistance; SiO(2)nanofibers; solar desalination

地址: [Dong, Xiangyang; Deng, Hongbing] Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Hubei Key Lab Biomass Resource Chem & Environm Bi, Wuhan 430079, Peoples R China.

[Cao, Leitao; Si, Yang; Ding, Bin] Donghua Univ, Coll Text, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China.

[Si, Yang; Ding, Bin; Deng, Hongbing] Donghua Univ, Innovat Ctr Text Sci & Technol, Shanghai 200051, Peoples R China.

通訊作者地址: Deng, HB (corresponding author)，Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Hubei Key Lab Biomass Resource Chem & Environm Bi, Wuhan 430079, Peoples R China.

Ding, B (corresponding author)，Donghua Univ, Coll Text, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China.

Ding, B; Deng, HB (corresponding author)，Donghua Univ, Innovat Ctr Text Sci & Technol, Shanghai 200051, Peoples R China.

電子郵件地址: binding@dhu.edu.cn; hbdeng@whu.edu.cn

影響因子：27.398