Graphene foam with hierarchical structures for the removal of organic pollutants from water

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 4889-4898 ◽  
Author(s):  
Sudong Yang ◽  
Lin Chen ◽  
Lei Mu ◽  
Bin Hao ◽  
Junteng Chen ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Organic Pollutants ◽  
Hierarchical Structure ◽  
Hierarchical Structures ◽  
High Porosity ◽  
Water Separation ◽  
Graphene Foam ◽  
Excellent Thermal Stability ◽  
Oil Water Separation ◽  
Oil Water

Graphene foam with hierarchical structure was prepared. The developed material exhibited high porosity, hydrophobicity, excellent thermal stability, and can be for oil–water separation.

scholarly journals Breath figure lithography for the construction of a hierarchical structure in sponges and their applications to oil/water separation

2017 ◽  
Vol 5 (31) ◽  
pp. 16369-16375 ◽  
Author(s):  
Jing Zhang ◽  
Zhijun Meng ◽  
Ji Liu ◽  
Christoph Schlaich ◽  
Ziyi Yu ◽  
...  
Keyword(s):  
Hierarchical Structure ◽  
Hierarchical Structures ◽  
Water Separation ◽  
Breath Figure ◽  
Oil Water Separation ◽  
Oil Water

Using breath figure lithography, we demonstrate the ability to coat commercial polyurethane sponges with hierarchical structures for quick oil/water separation.

scholarly journals Controllable synthesis of pomelo peel-based aerogel and its application in adsorption of oil/organic pollutants

2019 ◽  
Vol 6 (2) ◽  
pp. 181823 ◽  
Author(s):  
Guangyu Shi ◽  
Yizhu Qian ◽  
Fengzhi Tan ◽  
Weijie Cai ◽  
Yuan Li ◽  
...  
Keyword(s):  
High Speed ◽  
Chemical Properties ◽  
Absorption Capacity ◽  
High Porosity ◽  
X Ray Diffraction ◽  
Water Separation ◽  
Physico Chemical ◽  
Wide Range ◽  
Oil Water Separation ◽  
Oil Water

Oil/water separation is a field of high significance as it might efficiently resolve the contamination of industrial oily wastewater and other oil/water pollution. In this paper, an environmentally-friendly hydrophobic aerogel with high porosity and low density was successfully synthesized with renewable pomelo peels (PPs) as precursors. Typically, a series of sponge aerogels (HPSA-0, HPSA-1 and HPSA-2) were facilely prepared via high-speed dispersion, freeze-drying and silanization with methyltrimethoxysilane. Indeed, the physical properties of aerogel such as density and pore diameter could be tailored by different additives (filter paper fibre and polyvinyl alcohol). Hence, their physico-chemical properties including internal morphology and chemical structure were characterized in detail by Fourier transform infrared, Brunauer–Emmett–Teller, X-ray diffraction, scanning electron microscope, Thermal gravimetric analyzer (TG) etc. Moreover, the adsorption capacity was further determined and the results revealed that the PP-based aerogels presented excellent adsorption performance for a wide range of oil products and/or organic solvents (crude oil 49.8 g g −1 , soya bean oil 62.3 g g −1 , chloroform 71.3 g g −1 etc.). The corresponding cyclic tests showed the absorption capacity decreased slightly from 94.66% to 93.82% after 10 consecutive cycles, indicating a high recyclability.

Multiple applications of bio-graphene foam for efficient chromate ion removal and oil-water separation

Chemosphere ◽  
2021 ◽  
Vol 263 ◽  
pp. 127790 ◽  
Author(s):  
Melinda Krebsz ◽  
Tibor Pasinszki ◽  
Tran Thanh Tung ◽  
Md Julker Nine ◽  
Dusan Losic
Keyword(s):  
Water Separation ◽  
Graphene Foam ◽  
Ion Removal ◽  
Oil Water Separation ◽  
Oil Water ◽  
Chromate Ion
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