Humic acid non-covalent functionalized multi-walled carbon nanotubes composite membrane and its application for the removal of organic dyes

Dong, Mengchan; Guo, Jinsong; Wang, Yu; Gai, Xiaoli; Xiong, Xiang‐Yuan; Zeng, Jia; Wang, Yufei; Wu, Yaochen

doi:10.1016/j.jece.2022.107320

Cited by 23 publications

(2 citation statements)

References 90 publications

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“…Nanotechnologies possess great potential to improve water and wastewater treatment, increasing treatment efficiency as well as increasing water supply through the safe use of unconventional water sources [ 18 ]. The advantages of nanomaterials are high specific area, fast dispersion ability, high reactivity, and sorption ability to various organic pollutants [ 19 , 20 , 21 ], heavy metals [ 22 , 23 ] and bacteria [ 24 , 25 ]. Carbon nanomaterials [ 26 , 27 , 28 ], nanomaterials based on metals and metal oxides [ 29 , 30 , 31 ], and composite nanoparticles with magnetic and ferromagnetic properties [ 32 , 33 , 34 ] are widely applied for water purification [ 35 ].…”

Section: Materials For Membrane Purificationmentioning

confidence: 99%

Recent Advances on Membranes for Water Purification Based on Carbon Nanomaterials

et al. 2022

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Every year the problem of water purification becomes more relevant. This is due to the continuous increase in the level of pollution of natural water sources, an increase in the population, and sharp climatic changes. The growth in demand for affordable and clean water is not always comparable to the supply that exists in the water treatment market. In addition, the amount of water pollution increases with the increase in production capacity, the purification of which cannot be fully handled by conventional processes. However, the application of novel nanomaterials will enhance the characteristics of water treatment processes which are one of the most important technological problems. In this review, we considered the application of carbon nanomaterials in membrane water purification. Carbon nanofibers, carbon nanotubes, graphite, graphene oxide, and activated carbon were analyzed as promising materials for membranes. The problems associated with the application of carbon nanomaterials in membrane processes and ways to solve them were discussed. Their efficiency, properties, and characteristics as a modifier for membranes were analyzed. The potential directions, opportunities and challenges for application of various carbon nanomaterials were suggested.

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Section: Materials For Membrane Purificationmentioning

confidence: 99%

Recent Advances on Membranes for Water Purification Based on Carbon Nanomaterials

et al. 2022

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“…Colored emulsions challenge traditional oil–water separation techniques, since special wettability alone cannot effectively remove dyes. Adsorption and photocatalysis are often used to remove dyes from solution. − Several researchers have proposed methods to filter aqueous solutions of adsorbed dyes. − Cevik’s team synthesized a nitrogen-doped multilayer molybdenum carbide and molybdenum oxide nanosheet that performs gravity-driven dye removal without applying pressure . Xie and co-workers proposed a carbamide-modified graphene oxide membrane with 99% removal of Congo red, peacock green, and crystal violet .…”

Section: Introductionmentioning

confidence: 99%

Photo-Fenton Antifouling Membrane Based on Hydrophilized MIL-88A for Sustainable Treatment of Colored Emulsions

Zheng

Wang

Zhao

et al. 2022

Ind. Eng. Chem. Res.

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The complex composition of emulsions often adversely affects separations. When using hydrophilic membranes for oil-in-water emulsions, the oil and other components reduce hydrophilicity, flux, and separation efficiency. The separation of colored emulsions poses a challenge to membrane technology. This work reports a method to inlay hydrophilic particles on the surface of MIL-88A. The modified MIL-88A can form a hydrophilic coating on the membrane that is resistant to scouring. Thanks to the randomly distributed rod-like structure, this grooved coating has remarkable resistance to contamination. Flux can be restored by water washing. A flux close to 5000 L m −2 h −1 bar −1 is consistently maintained in 10 emulsion separations. The modified membrane removes 99% of dyes in addition to oil when treating colored emulsions. Dyes adsorbed to the surface can be degraded by the photo-Fenton reaction under visible light, which ensures the ability to treat colored emulsions continuously.

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Chemically Modified Carbon Nanotubes for Pollutants Adsorption

Ranganathan¹,

Rajendran²,

Cornejo-Ponce³

2022

Chemically Modified Carbon Nanotubes for Commercial Applications

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Humic acid non-covalent functionalized multi-walled carbon nanotubes composite membrane and its application for the removal of organic dyes

Cited by 23 publications

References 90 publications

Recent Advances on Membranes for Water Purification Based on Carbon Nanomaterials

Recent Advances on Membranes for Water Purification Based on Carbon Nanomaterials

Photo-Fenton Antifouling Membrane Based on Hydrophilized MIL-88A for Sustainable Treatment of Colored Emulsions

Chemically Modified Carbon Nanotubes for Pollutants Adsorption

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