Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water

Dinesh Shetty; Ilma Jahovic; Jesus Raya; Zouhair Asfari; John Carl Olsen; Ali Trabolsi

doi:10.1021/acsami.7b16546

Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water

Dinesh Shetty, Ilma Jahovic, Jesus Raya, Zouhair Asfari, John Carl Olsen, Ali Trabolsi

Chemistry

Research output: Contribution to journal › Article › peer-review

90 Scopus citations

Abstract

Organic micropollutants are hazards to the environment and human health. Conventional technologies are often inefficient at removing them from wastewater. For example, commercial activated carbon (AC) exhibits slow uptake rates, limited capacities, and is costly to regenerate. Here, we report the utility of porous calix[4]arene-based materials, CalPn (n = 2-4), for water purification. Calixarenes are a common motif in supramolecular chemistry but have rarely been incorporated into extended, porous networks such as organic polymers. CalPn exhibit pollutant uptake rates (k_obs) and adsorption capacities (q_max) that are among the highest reported. For example, the k_obs of CalP4 for bisphenol A (BPA) is 2.12 mg/g·min, which is significantly higher (16 to 240 times) than k_obs for ACs and 1.4 times higher than that of the most efficient material previously reported; the q_max of CalP4 for BPA is 403 mg/g. The CalPn polymers can be regenerated several times, with performance levels left undiminished, by a simple wash procedure that is less energy intensive than that required for ACs. These findings demonstrate the potential of calixarene-based materials for organic micropollutant removal.

Original language	British English
Pages (from-to)	2976-2981
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	3
DOIs	https://doi.org/10.1021/acsami.7b16546
State	Published - 24 Jan 2018

Keywords

adsorption
bisphenol A
calix[n]arenes
micropollutants
porous organic polymers
propranolol
water purification

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsami.7b16546

Cite this

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title = "Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water",

abstract = "Organic micropollutants are hazards to the environment and human health. Conventional technologies are often inefficient at removing them from wastewater. For example, commercial activated carbon (AC) exhibits slow uptake rates, limited capacities, and is costly to regenerate. Here, we report the utility of porous calix[4]arene-based materials, CalPn (n = 2-4), for water purification. Calixarenes are a common motif in supramolecular chemistry but have rarely been incorporated into extended, porous networks such as organic polymers. CalPn exhibit pollutant uptake rates (kobs) and adsorption capacities (qmax) that are among the highest reported. For example, the kobs of CalP4 for bisphenol A (BPA) is 2.12 mg/g·min, which is significantly higher (16 to 240 times) than kobs for ACs and 1.4 times higher than that of the most efficient material previously reported; the qmax of CalP4 for BPA is 403 mg/g. The CalPn polymers can be regenerated several times, with performance levels left undiminished, by a simple wash procedure that is less energy intensive than that required for ACs. These findings demonstrate the potential of calixarene-based materials for organic micropollutant removal.",

keywords = "adsorption, bisphenol A, calix[n]arenes, micropollutants, porous organic polymers, propranolol, water purification",

author = "Dinesh Shetty and Ilma Jahovic and Jesus Raya and Zouhair Asfari and Olsen, {John Carl} and Ali Trabolsi",

note = "Funding Information: This work was supported by New York University Abu Dhabi. The authors thank NYUAD for their support for the research program. The authors also thank the NYUAD Core Technology Platforms and Ms. Khulood Alawadi for the 3D drawings. Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

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T1 - Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water

AU - Shetty, Dinesh

AU - Jahovic, Ilma

AU - Raya, Jesus

AU - Asfari, Zouhair

AU - Olsen, John Carl

AU - Trabolsi, Ali

N1 - Funding Information: This work was supported by New York University Abu Dhabi. The authors thank NYUAD for their support for the research program. The authors also thank the NYUAD Core Technology Platforms and Ms. Khulood Alawadi for the 3D drawings. Publisher Copyright: © 2018 American Chemical Society.

PY - 2018/1/24

Y1 - 2018/1/24

N2 - Organic micropollutants are hazards to the environment and human health. Conventional technologies are often inefficient at removing them from wastewater. For example, commercial activated carbon (AC) exhibits slow uptake rates, limited capacities, and is costly to regenerate. Here, we report the utility of porous calix[4]arene-based materials, CalPn (n = 2-4), for water purification. Calixarenes are a common motif in supramolecular chemistry but have rarely been incorporated into extended, porous networks such as organic polymers. CalPn exhibit pollutant uptake rates (kobs) and adsorption capacities (qmax) that are among the highest reported. For example, the kobs of CalP4 for bisphenol A (BPA) is 2.12 mg/g·min, which is significantly higher (16 to 240 times) than kobs for ACs and 1.4 times higher than that of the most efficient material previously reported; the qmax of CalP4 for BPA is 403 mg/g. The CalPn polymers can be regenerated several times, with performance levels left undiminished, by a simple wash procedure that is less energy intensive than that required for ACs. These findings demonstrate the potential of calixarene-based materials for organic micropollutant removal.

AB - Organic micropollutants are hazards to the environment and human health. Conventional technologies are often inefficient at removing them from wastewater. For example, commercial activated carbon (AC) exhibits slow uptake rates, limited capacities, and is costly to regenerate. Here, we report the utility of porous calix[4]arene-based materials, CalPn (n = 2-4), for water purification. Calixarenes are a common motif in supramolecular chemistry but have rarely been incorporated into extended, porous networks such as organic polymers. CalPn exhibit pollutant uptake rates (kobs) and adsorption capacities (qmax) that are among the highest reported. For example, the kobs of CalP4 for bisphenol A (BPA) is 2.12 mg/g·min, which is significantly higher (16 to 240 times) than kobs for ACs and 1.4 times higher than that of the most efficient material previously reported; the qmax of CalP4 for BPA is 403 mg/g. The CalPn polymers can be regenerated several times, with performance levels left undiminished, by a simple wash procedure that is less energy intensive than that required for ACs. These findings demonstrate the potential of calixarene-based materials for organic micropollutant removal.

KW - adsorption

KW - bisphenol A

KW - calix[n]arenes

KW - micropollutants

KW - porous organic polymers

KW - propranolol

KW - water purification

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ER -

Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water

Abstract

Keywords

UN SDGs

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