Adsorption of ofloxacin and norfloxacin on carbon nanotubes: Hydrophobicity- and structure-controlled process

Peng, Hongbo; Pan, Bo; Wu, Min; Liu, Ying; Zhang, Di; Xing, Baoshan

doi:10.1016/j.jhazmat.2012.06.058

Cited by 164 publications

(49 citation statements)

References 43 publications

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“…The surface areas of SWCNTs (500-600 m 2 /g) are often larger than those of MWCNTs (100-300 m 2 /g). Peng et al (2012b) found that the adsorption of OFL and NOR on SWCNTs was significantly higher than that of MWCNTs. Other research also found that SWCNTs showed higher adsorption than MWCNTs for 17α-ethinyl estradiol and bisphenol A .…”

Section: Surface Propertiesmentioning

confidence: 92%

“…For example, the decreased diameter of CNTs results in increased surface area and leads to enhanced adsorption of pyrene, ofloxacin (OFL) and norfloxacin (NOR) (Yang et al, 2006;Peng et al, 2012b). The ranking of different CNPs according to the adsorption of phenanthrene determined by their surface area was: singlewalled CNTs (SWCNTs)>multi-walled CNTs (MWCNTs)>C 60 (Yang et al, 2006).…”

Section: Surface Propertiesmentioning

confidence: 99%

“…However, some CNPs, such as SWCNTs, showed comparable or even higher adsorption of organic contaminants than AC Peng et al, 2012b). The high surface area of AC results from its porous structure (Wang Z.Y.…”

Section: Surface Propertiesmentioning

confidence: 99%

“…Among these interactions, hydrophobic interaction has been used to interpret the sorption of hydrophobic organic contaminants (HOCs) by CNPs, because the surfaces of CNPs are hydrophobic (Gotovac et al, 2006;2007c;Yang et al, 2006). Electrostatic interaction may be the dominant interaction for the adsorption of charged organic contaminants on CNPs (MacKay and Vasudevan, 2012), such as the adsorption of fluoroquinolone antibiotics (OFL and NOR) on CNTs, as affected by pH (Wang et al, 2009;Peng et al, 2012b). Hydrogen bonds can form between CNPs and organic contaminants if both chemicals and CNPs have certain functional groups, such as -OH, -COOH, -F, and -NH 2 (Vermisoglou et al, 2007;van Wieren et al, 2012).…”

Section: Mechanisms Of Interaction Between Contaminants and Carbon Namentioning

confidence: 99%

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Organic contaminants and carbon nanoparticles: sorption mechanisms and impact parameters

Peng

Zhang

et al. 2014

J. Zhejiang Univ. Sci. A

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Carbon nanoparticles (CNPs) are novel manufactured materials with unique properties and have potential for a variety of applications. Adsorption of organic contaminants by discharged CNPs may affect the fate and transport of organic contaminants in the environment. This review summarizes the present research progress regarding organic contaminant adsorption on CNPs, and provides important information for the evaluation of the environmental behavior of organic contaminants and the risks associated with the use of CNPs. The main adsorption mechanisms involve hydrophobic interactions, π-π interactions, hydrogen bonds, and electrostatic interactions. These interactions may exist simultaneously, while the controlling adsorption mechanism differs depending on the properties of both the organic contaminants and the CNPs along with environmental conditions. The status of CNPs in the environment greatly affects or even controls their characteristics for adsorption of organic contaminants. The mobility and transport of dispersed CNPs and CNP-adsorbed organic contaminants could be promoted in natural aqueous environments, potentially increasing the spread of various organic contaminants and their associated environmental risks. Investigating the adsorption mechanisms and impact parameters is vital in predicting the environmental behaviors of both organic contaminants and CNPs and their associated risks.

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Section: Surface Propertiesmentioning

confidence: 92%

Section: Surface Propertiesmentioning

confidence: 99%

Section: Surface Propertiesmentioning

confidence: 99%

Section: Mechanisms Of Interaction Between Contaminants and Carbon Namentioning

confidence: 99%

See 2 more Smart Citations

Organic contaminants and carbon nanoparticles: sorption mechanisms and impact parameters

Peng

Zhang

et al. 2014

J. Zhejiang Univ. Sci. A

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“…And adsorption has been considered to be an attractive and effective technology for removal of these organic pollutants. Recently, a great deal of adsorbents has been investigated and shown good potential, for example, graphene oxide (8)(9)(10), carbon nanotubes (11)(12)(13), activated carbon (14)(15)(16), mesoporous nanocomposite (17), porous resins (12), montmorillonite (18), bentonite (19), and kaolinite (20). Table 1 lists some of these adsorbents for removal of common antibiotics pollutants in water.…”

Section: Introductionmentioning

confidence: 99%

Development of novel graphene-like layered hexagonal boron nitride for adsorptive removal of antibiotic gatifloxacin from aqueous solution

Chao

Zhu

Chen

et al. 2014

Green Chemistry Letters and Reviews

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(2014) Development of novel graphene-like layered hexagonal boron nitride for adsorptive removal of antibiotic gatifloxacin from aqueous solution, Green Chemistry Letters and Reviews, 7:4, 330-336, DOI: 10.1080/17518253.2014 Graphene-like layered hexagonal boron nitride (g-BN) was prepared and characterized. The performance of using g-BN as an adsorbent for removal of fluoroquinolone antibiotic gatifloxacin (GTF) from aqueous solution was evaluated. g-BN showed an excellent adsorption capability with notable GTF adsorption ratio of more than 90%. Data of equilibrium adsorption of GTF onto g-BN at different temperatures were represented by Langmuir, Freundlich and Tempkin isotherm models, and Langmuir exhibited the best fitting with the maximum adsorption capacity of 88.5 mg·g −1 at 288 K. GTF adsorption was insignificantly affected by solution pH. Competitive role of Na + and Ca 2+ in the solution inhibited the adsorption of GTF and decreased the adsorption capacity a bit. The adsorption process was spontaneous and exothermic. The adsorption was probably governed by π-π interaction between GTF and g-BN, and electrostatic interaction may also exist in the adsorption process.

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From Priority Contaminants to Emerged Threat: Risk and Occurrence‐Based Analysis for Better Water Management Strategies in Present and Future

Nassar

Younis

2019

Nano and Bio‐Based Technologies for Wastewater Treatment

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Adsorption of ofloxacin and norfloxacin on carbon nanotubes: Hydrophobicity- and structure-controlled process

Cited by 164 publications

References 43 publications

Organic contaminants and carbon nanoparticles: sorption mechanisms and impact parameters

Organic contaminants and carbon nanoparticles: sorption mechanisms and impact parameters

Development of novel graphene-like layered hexagonal boron nitride for adsorptive removal of antibiotic gatifloxacin from aqueous solution

From Priority Contaminants to Emerged Threat: Risk and Occurrence‐Based Analysis for Better Water Management Strategies in Present and Future

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