scholarly journals Superhydrophobic foam prepared from high internal phase emulsion templates stabilised by oyster shell powder for oil–water separation

RSC Advances ◽  
2019 ◽  
Vol 9 (31) ◽  
pp. 17543-17550 ◽  
Author(s):  
Chuan-ming Yu ◽  
Xiao-hui Zhuang ◽  
Sheng-wei Zeng ◽  
Qi-xing Dong ◽  
Zhan-xin Jing ◽  
...  
Keyword(s):  
Oyster Shell ◽  
Water Separation ◽  
High Internal Phase Emulsion ◽  
Internal Phase ◽  
Styrene Divinylbenzene ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oyster Shell Powder ◽  
Span 80 ◽  
Shell Powder

Poly(styrene-divinylbenzene) foam was synthesized through a high internal phase emulsion (HIPE) technique with Span 80 and superfine oyster shell powder as a co-emulsifier, and the foam exhibited excellent superhydrophobicity and oleophilicity.

scholarly journals Application of Nano-Hydroxyapatite Derived from Oyster Shell in Fabricating Superhydrophobic Sponge for Efficient Oil/Water Separation

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3703
Author(s):  
Chao Liu ◽  
Su-Hua Chen ◽  
Chi-Hao Yang-Zhou ◽  
Qiu-Gen Zhang ◽  
Ruby N. Michael
Keyword(s):  
Oil Recovery ◽  
Superhydrophobic Surface ◽  
Oyster Shell ◽  
Contact Angles ◽  
Immersion Method ◽  
Water Separation ◽  
Promising Alternative ◽  
Recovery Capacity ◽  
Oil Water Separation ◽  
Oil Water

The exploration of nonhazardous nanoparticles to fabricate a template-driven superhydrophobic surface is of great ecological importance for oil/water separation in practice. In this work, nano-hydroxyapatite (nano-HAp) with good biocompatibility was easily developed from discarded oyster shells and well incorporated with polydimethylsiloxane (PDMS) to create a superhydrophobic surface on a polyurethane (PU) sponge using a facile solution–immersion method. The obtained nano-HAp coated PU (nano-HAp/PU) sponge exhibited both excellent oil/water selectivity with water contact angles of over 150° and higher absorption capacity for various organic solvents and oils than the original PU sponge, which can be assigned to the nano-HAp coating surface with rough microstructures. Moreover, the superhydrophobic nano-HAp/PU sponge was found to be mechanically stable with no obvious decrease of oil recovery capacity from water in 10 cycles. This work presented that the oyster shell could be a promising alternative to superhydrophobic coatings, which was not only beneficial to oil-containing wastewater treatment, but also favorable for sustainable aquaculture.

Superhydrophilic and mechanical robust PVDF nanofibrous membrane through facile interfacial Span 80 welding for excellent oil/water separation

2019 ◽  
Vol 485 ◽  
pp. 179-187 ◽  
Author(s):  
Yajie Ding ◽  
Jindan Wu ◽  
Jianqiang Wang ◽  
Haibo Lin ◽  
Jiping Wang ◽  
...  
Keyword(s):  
Nanofibrous Membrane ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Span 80

Complex membrane of cellulose and chitin nanocrystals with cationic guar gum for oil/water separation

2019 ◽  
Vol 136 (37) ◽  
pp. 47947 ◽  
Author(s):  
Hajo Yagoub ◽  
Liping Zhu ◽  
Mahmoud H. M. A. Shibraen ◽  
Xiaowei Xu ◽  
Dafaalla M. D. Babiker ◽  
...  
Keyword(s):  
Guar Gum ◽  
Water Separation ◽  
Complex Membrane ◽  
Oil Water Separation ◽  
Oil Water
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