Simple one-pot approach toward robust and boiling-water resistant superhydrophobic cotton fabric and the application in oil/water separation

2017 ◽  
Vol 5 (41) ◽  
pp. 21866-21874 ◽  
Author(s):  
Fei Guo ◽  
Qiuying Wen ◽  
Yubing Peng ◽  
Zhiguang Guo

A mussel-inspired robust and boiling-water resistant superhydrophobic PDA@SiO2 coated cotton fabric was fabricated by a simple one-pot approach and can be used to separate oil/water mixture.

2018 ◽  
Vol 199 ◽  
pp. 390-396 ◽  
Author(s):  
Quan-Yong Cheng ◽  
Cheng-Shu Guan ◽  
Meng Wang ◽  
Yi-Dong Li ◽  
Jian-Bing Zeng

2019 ◽  
Vol 58 (47) ◽  
pp. 21419-21430 ◽  
Author(s):  
Manoj Manickam ◽  
Prabunathan Pichaimani ◽  
Hariharan Arumugam ◽  
Alagar Muthukaruppan

2021 ◽  
Author(s):  
Prabunathan P ◽  
M. Alagar

Abstract The present work detailsabout the low temperature curingbehaviour of bio-benzoxazine (C-ddm) prepared using cardanol and diaminodiphenylmethane (ddm)in the presence of polyaniline (PANI). Interestingly, it was found that the curing temperature (Tp) of the benzoxazine monomer (C-ddm) has significantly reduced to 227 ºC from 271 ºC with the incorporation of 2wt% of PANI. The plausible curing mechanism of benzoxazine ring catalysed by PANI was also discussed. Further, the resulted PANI/poly(C-ddm) matrices possessa marginally improvedvalues of glass transisition temperature and char yield. Further, PANI/poly(C-ddm) coated cotton fabric was studied for its UV shielding and surface properties. Furthermore, the UV shielding and surface behaviours of PANI/poly(C-ddm) coated cotton fabrics were explored. The PANI/poly(C-ddm) coated cotton fabric delivered UPF rating as high as 50 + and water contact angle value of162°. In addition, the PANI/poly(C-ddm) coated cotton fabric wasverified for its oil-water separation behavior. It was observed that the PANI/poly(C-ddm) coated cotton fabric offered97.5 % separation efficiency with enhanced flux value of about 6450 L/m2h flux.Thus, the obtained results suggest that the PANI/poly(C-ddm) can be used some of the industrial and environmental surface protection applications.


Cellulose ◽  
2021 ◽  
Author(s):  
Vasanthakumar Arumugam ◽  
Rajakumar Kanthapazham ◽  
Dmitry A. Zherebtsov ◽  
Kanimozhi Kalimuthu ◽  
Prabunathan Pichaimani ◽  
...  

2021 ◽  
pp. 2100725
Author(s):  
Weibin Bai ◽  
Haimen Lin ◽  
Kunhui Chen ◽  
Renping Zeng ◽  
Yucai Lin ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4660-4671
Author(s):  
Yaofa Luo ◽  
Shuang Wang ◽  
Xihan Fu ◽  
Xiaosheng Du ◽  
Haibo Wang ◽  
...  

A durable superhydrophobic, self-cleaning cotton fabric based on UV curing was prepared and used in the field of oil/water separation.


2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yuanli Chen ◽  
Hui Fan ◽  
Xinlin Zha ◽  
Wenwen Wang ◽  
Yi Wu ◽  
...  

AbstractHigh efficiency and anti-pollution oil/water separation membrane has been widely explored and researched. There are a large number of hydroxyl groups on the surface of silica, which has good wettability and can be used for oil-water separation membranes. Hydrophilic silica nanostructures with different morphologies were synthesized by changing templates and contents of trimethylbenzene (TMB). Here, silica nanospheres with radical pores, hollow silica nanospheres and worm-like silica nanotubes were separately sprayed on the PVA-co-PE nanofiber membrane (PM). The abundance of hydroxyl groups and porous structures on PM surfaces enabled the absorption of silica nanospheres through hydrogen bonds. Compared with different silica nanostructures, it was found that the silica/PM exhibited excellent super-hydrophilicity in air and underwater “oil-hating” properties. The PM was mass-produced in our lab through melt-extrusion-phase-separation technique. Therefore, the obtained membranes not only have excellent underwater superoleophobicity but also have a low-cost production. The prepared silica/PM composites were used to separate n-hexane/water, silicone oil/water and peanut oil water mixtures via filtration. As a result, they all exhibited efficient separation of oil/water mixture through gravity-driven filtration.


Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 457
Author(s):  
Chunlei Ren ◽  
Wufeng Chen ◽  
Chusheng Chen ◽  
Louis Winnubst ◽  
Lifeng Yan

Porous Al2O3 membranes were prepared through a phase-inversion tape casting/sintering method. The alumina membranes were embedded with finger-like pores perpendicular to the membrane surface. Bare alumina membranes are naturally hydrophilic and underwater oleophobic, while fluoroalkylsilane (FAS)-grafted membranes are hydrophobic and oleophilic. The coupling of FAS molecules on alumina surfaces was confirmed by Thermogravimetric Analysis and X-ray Photoelectron Spectroscopy measurements. The hydrophobic membranes exhibited desired thermal stability and were super durable when exposed to air. Both membranes can be used for gravity-driven oil/water separation, which is highly cost-effective. The as-calculated separation efficiency (R) was above 99% for the FAS-grafted alumina membrane. Due to the excellent oil/water separation performance and good chemical stability, the porous ceramic membranes display potential for practical applications.


2018 ◽  
Vol 19 (7) ◽  
pp. 1522-1531 ◽  
Author(s):  
Jiangtao Hu ◽  
Qianhong Gao ◽  
Lu Xu ◽  
Minglei Wang ◽  
Maojiang Zhang ◽  
...  

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