Biocompatible, hydrophobic and resilience graphene/chitosan composite aerogel for efficient oil−water separation

2020 ◽  
Vol 385 ◽  
pp. 125361 ◽  
Author(s):  
Jiang Hu ◽  
Jundong Zhu ◽  
Shengzhuo Ge ◽  
Chongwen Jiang ◽  
Tianyu Guo ◽  
...  
2017 ◽  
Vol 18 (4) ◽  
pp. 706-712 ◽  
Author(s):  
Guihua Meng ◽  
Huili Peng ◽  
Jianning Wu ◽  
Yixi Wang ◽  
Hao Wang ◽  
...  

2021 ◽  
pp. 50765
Author(s):  
Ximei Zhu ◽  
Zongxue Yu ◽  
Haojie Zeng ◽  
Xiaofang Feng ◽  
Yuchuan Liu ◽  
...  

2021 ◽  
Vol 270 ◽  
pp. 118794
Author(s):  
Yucheng Li ◽  
Zhaoyun Lin ◽  
Xiangyu Wang ◽  
Zhengyin Duan ◽  
Peng Lu ◽  
...  

Biomolecules ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1632
Author(s):  
Sneha Bhagyaraj ◽  
Igor Krupa

Environmental remediation using green approaches for addressing various pollution-related issues, especially water pollution, is in high demand. Here, we designed an environmentally friendly, low-cost, and stable sodium alginate–halloysite clay composite aerogel (SAHA) for oil/water separation via a two-step synthesis procedure, including ionic crosslinking and freeze-drying. The as-prepared SAHA aerogels were characterized in detail by scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and Fourier transformation infrared (FT-IR) spectroscopy. Characterization of the SAHA aerogels revealed a three-dimensional porous microstructure with uniformly dispersed halloysite nanotubes (HA) within the alginate matrix. The elemental composition of the hydrogels investigated using energy dispersive X-ray spectrometry (EDX) revealed the presence of minerals, such as magnesium, sodium, aluminum, and silicon in the SAHA aerogels. The presence of a hydrophilic alginate matrix combined with these unique morphological characteristics resulted in SAHA aerogels with underwater oleophobicity and excellent oil/water separation efficiency (up to 99.7%). The ease of fabrication, excellent oil/water separation, and multiple performances make the SAHA aerogel an interesting candidate for practical applications in water recycling.


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