Multi-walled carbon nanotubes with selected properties for dynamic filtration of pharmaceuticals and personal care products

Wang, Yifei; Ma, Jing; Zhu, Jiaxin; Ye, Ning; Zhang, Xiaolei; Huang, Haiou

doi:10.1016/j.watres.2016.01.038

Cited by 92 publications

(31 citation statements)

References 31 publications

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“…Such cases have been commonly reported in the adsorption of aromatics ,. The mechanism of the π, π ‐ π and π ‐ π EDA interactions is metaphorized in Figure and the Table lists some CNT based nanocomposites for removal of organics.…”

Section: Insight On Sorption Mechanismsmentioning

confidence: 90%

Engineered Carbon Nanotubes: Review on the Role of Surface Chemistry, Mechanistic Features, and Toxicology in the Adsorptive Removal of Aquatic Pollutants.

et al. 2018

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The advent of nanotechnology has led to the development of new nanomaterials with enriched material properties over the conventional. These nanomaterials find wide application in numerous fields including environmental predominantly on water purification. Carbon nanotubes (CNT) are one among the nanomaterials widely employed for such application. Therefore, the present review emphasizes on the exceptional abilities of CNT especially in the removal of organics and inorganics from aquatic streams. Though numerous reviews were published in this subject most of them focused on the synthesis and specific applications. The authors learned that there is a wider gap on the review that presents the mechanistic features like the development of active sites, the effect of curvature, inclusion of heteroatoms, methods for the enhancement of affinity and selectivity through functionalization, the introduction of defects and the chemistry involved in their interaction with various category of pollutants. Hence, the present review delivers a clear understanding of the above-said factors in a comprehensive way. The article explicits on the various surface modification techniques (i.e covalent, non-covalent, defect and endohedral) along with their effects on the sorption efficiency. Further, the review also provides a clear picture of the toxicological aspects of the CNT. The authors strongly believe that the present review will aid in the understanding and design of multifunctional CNT towards environmental application in a comprehensive manner.

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Section: Insight On Sorption Mechanismsmentioning

confidence: 90%

Engineered Carbon Nanotubes: Review on the Role of Surface Chemistry, Mechanistic Features, and Toxicology in the Adsorptive Removal of Aquatic Pollutants.

et al. 2018

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“…Therefore, AC must be chemically modified before it can be used for water-soluble dye removal 10 . Some charged and hydrophilic contaminants, such as ibuprofen, DEET and gemfibrozil, can generally not be efficiently removed by AC 11,12 . Moreover, the adsorption capacity of AC is frequently decreased by pore-blocking and competition by natural organic matter (NOM) 6,13,14 .…”

Section: The Effect Of Incorporating Inorganic Materials Into Quaternmentioning

confidence: 99%

The effect of incorporating inorganic materials into quaternized polyacrylic polymer on its mechanical strength and adsorption behaviour for ibuprofen removal

Zhang

Shuang

et al. 2020

Sci Rep

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questionable due to the large amount of waste produced, which was roughly equal to the volume of treated water. When the regenerated resin was washed with 10 mL of deionized water, the amount of ibuprofen adsorbed onto MAP (0.20 mmol/g) decreased by approximately 20% in the first 5 adsorption-regeneration cycles. However, the reusability stabilized at an adsorbed amount of 0.19 ± 0.02 mmol/g, suggesting that MAP is a feasible, reusable material for ibuprofen removal from water.

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“…increase in SSA was seen [53]. Adsorption capacity of MWNT is a function of its structural and physicochemical properties; molecular weight of the compound also has an impact on the adsorption capacity, TCS has shown to have a removal ratio of 0.93 with pristine MWNT, and this was studied by [54]. The fact that CNTs impart toxicity in the environment was tackled by immobilising them; achieved efficiency of TCS removal was up to 99.7% [55].…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Emerging contaminant (triclosan) identification and its treatment: a review

et al. 2019

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Pollutants from personal care products (PCPs), pharmaceuticals, industrial wastes, food additives, pesticides and fertilisers are classified as emerging contaminants (ECs). These ECs have been given much attention due to their deleterious effects on human life, plants and animals. Triclosan (TCS), a broad spectrum antibiotic, is under the category of emerging contaminants; it is shown to have an eco-toxicity. It is a ubiquitous contaminant due to its wide range of applications in PCPs as an antibacterial agent. Inefficacy in the conventional treatment of wastewater which is being discharged into natural streams has led to the bioaccumulation of TCS. Concentrations of TCS have been detected in several wastewater treatment plants and urinary samples of humans and streams. In surface waters, TCS was detected in Korea, USA, Europe, China, Japan and India. In order to overcome the astringent effects of TCS, there is a need for its treatment. This paper addresses studies conducted on methods of treating TCS, and among all the methods, membrane technology (MT) was found to be effective and this is mainly due to hydrophilic nature of TCS, high log K ow value (4.8), and a removal efficiency > 95% was observed when powdered activated carbon of 100 mg/l was combined with MT.

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Multi-walled carbon nanotubes with selected properties for dynamic filtration of pharmaceuticals and personal care products

Cited by 92 publications

References 31 publications

Engineered Carbon Nanotubes: Review on the Role of Surface Chemistry, Mechanistic Features, and Toxicology in the Adsorptive Removal of Aquatic Pollutants.

Engineered Carbon Nanotubes: Review on the Role of Surface Chemistry, Mechanistic Features, and Toxicology in the Adsorptive Removal of Aquatic Pollutants.

The effect of incorporating inorganic materials into quaternized polyacrylic polymer on its mechanical strength and adsorption behaviour for ibuprofen removal

Emerging contaminant (triclosan) identification and its treatment: a review

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