Adsorptive removal of PPCPs from aqueous solution using carbon-based composites: A review

Wang, Tong; He, Jie; Lu, Jian; Zhou, Yi; Wang, Zhaohui; Zhou, Yanbo

doi:10.1016/j.cclet.2021.09.029

Cited by 62 publications

(15 citation statements)

References 123 publications

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“…This complied well with the narrowing of membrane pore size and enhancement of membrane surface negative charges. The rejection behavior for TrOCs was different from that for the reference neutral solutes, which could be greatly influenced by the physicochemical properties of the TrOCs themselves and the active layer. − When the M PA membrane was tested, the rejections of the six TrOCs were within 41.2–83.8%, with the lowest rejection for carbamazepine which has a low MW of 236.3 Da and relatively high hydrophobicity. , In comparison, when the M MPA membrane was tested, the rejections of the six TrOCs were within 61.5–81.7%, with the lowest rejection for atenolol, due to its low MW and strong electrostatic attraction with the negatively charged membrane surface. It seems that the M MPA‑0.66 membrane could achieve the most-balanced rejections of the six TrOCs, which also demonstrated the lowest rejections of hardness ions among the prepared membranes (Figure B).…”

Section: Resultsmentioning

confidence: 99%

Molecular Design of the Polyamide Layer Structure of Nanofiltration Membranes by Sacrificing Hydrolyzable Groups toward Enhanced Separation Performance

Wang

et al. 2022

Environ. Sci. Technol.

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Nanofiltration (NF) is an effective technology for removing trace organic contaminants (TrOCs), while the inherent trade-off effect between water permeance and solute rejections hinders its widespread application in water treatment. Herein, we propose a novel scheme of "monomers with sacrificial groups" to regulate the microstructure of the polyamide active layer via introducing a hydrolyzable ester group onto piperazine to control the diffusion and interfacial polymerization process. The achieved benefits include narrowing the pore size, improving the interpore connectivity, enhancing the microporosity, and reducing the active layer thickness, which collectively realized the simultaneous improvement of water permeance and enhancement of TrOCs rejection performance. The resulting membranes were superior to both the control and commercial membranes, especially in water-TrOCs selectivity. The effects of using the new monomers on the membrane physicochemical properties were systematically studied, and underlying mechanisms for the enhanced separation performance were further revealed by simulating the polymerization process through density functional theory calculation and measuring the trans-interface diffusion rate of monomers. This study demonstrates a novel promising NF membrane synthesis strategy by designing the structure of reaction monomers for achieving excellent rejection of TrOCs with a low energy input in water treatment.

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Section: Resultsmentioning

confidence: 99%

Molecular Design of the Polyamide Layer Structure of Nanofiltration Membranes by Sacrificing Hydrolyzable Groups toward Enhanced Separation Performance

Wang

et al. 2022

Environ. Sci. Technol.

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“…Determination of Thermodynamic Parameter: Adsorption isotherm modeling could be utilized to predict the spontaneity of sorption, adsorption equilibrium, and adsorption capacity, all of which were substantial in evaluating the performance of adsorbents. [28] The thermodynamic parameters such as free energy change (∆G°), entropy change (∆S°), and enthalpy change (∆H°) were determined to check the impulsiveness and viability of the sorption process of Cd(II) ions on sorbent. These parameters were determined using Equations ( 4)-( 6) as reported in literature.…”

Section: Percentage Uptake =mentioning

confidence: 99%

Isothermal and Kinetic Modeling for Uptake of Heavy Metal Ion from Aqueous Solution Using Succinylated Polysaccharide

et al. 2023

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Heavy metals are posing a serious threat to public health. Due to leaching and widespread use in chemical industries, their concentration is continuously increasing in fresh water reservoirs and industrial effluents. To address the severity of this issue, there is a dire need to devise the economic and environment friendly strategies to remove or decrease the concentration of heavy metals in water reservoirs. In the current research work, an economic and environment friendly polymer, succinylated microcrystalline cellulose (MCCS) is synthesized and modified for the adsorption of Cd(II) ions from aqueous solution. The sodium salt of MCCS (MCCSNa) shows good adsorption capacity for Cd(II) ions through ion‐exchange phenomenon. Isothermal modeling using different adsorption isotherms is investigated to check the spontaneity and understand the insight phenomenon of adsorption. Kinetic modeling of sorption phenomenon is performed to optimize the adsorption conditions for efficient removal of heavy metal ions. Moreover, regeneration capacity of the sorbent is also determined for its reuse to remove heavy metals.

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“…It is a direction toward new research related to the elimination of organic and inorganic pollutants from water at the same time by a single adsorbent [103]. Magnetic composites are frequently used in adsorption due to their strong hydrophilicity, greater surface area, and various active sites [104,105]. The addition of magnetic composite with poly (vinylidene fluoride) PVDF membranes is due to the characteristics mentioned above.…”

Section: Removal Of Heavy Metalsmentioning

confidence: 99%

Recent Advancements in Cyclodextrin-Based Adsorbents for the Removal of Hazardous Pollutants from Waters

et al. 2022

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Water is an essential substance for the survival on Earth of all living organisms. However, population growth has disturbed the natural phenomenon of living, due to industrial growth to meet ever expanding demands, and, hence, an exponential increase in environmental pollution has been reported in the last few decades. Moreover, water pollution has drawn major attention for its adverse effects on human health and the ecosystem. Various techniques have been used to treat wastewater, including biofiltration, activated sludge, membrane filtration, active oxidation process and adsorption. Among the mentioned, the last method is becoming very popular. Moreover, among the sorbents, those based on cyclodextrin have gained worldwide attention due to their excellent properties. This review article overviewed recent contributions related to the synthesis of Cyclodextrin (CD)-based adsorbents to treat wastewater, and their applications, especially for the removal of heavy metals, dyes, and organic pollutants (pharmaceuticals and endocrine disruptor chemicals). Furthermore, new adsorption trends and trials related to CD-based materials are also discussed regarding their regenerative potential. Finally, this review could be an inspiration for new research and could also anticipate future directions and challenges associated with CD-based adsorbents.

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Adsorptive removal of PPCPs from aqueous solution using carbon-based composites: A review

Cited by 62 publications

References 123 publications

Molecular Design of the Polyamide Layer Structure of Nanofiltration Membranes by Sacrificing Hydrolyzable Groups toward Enhanced Separation Performance

Molecular Design of the Polyamide Layer Structure of Nanofiltration Membranes by Sacrificing Hydrolyzable Groups toward Enhanced Separation Performance

Isothermal and Kinetic Modeling for Uptake of Heavy Metal Ion from Aqueous Solution Using Succinylated Polysaccharide

Recent Advancements in Cyclodextrin-Based Adsorbents for the Removal of Hazardous Pollutants from Waters

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