The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41
HIGHLIGHTSFe incorporation significantly accelerated the adsorption of CPX on MCM-41.Fe leaching can be ignored when pH was higher than 4.0.pH played an important role in CPX adsorption on Fe-MCM-41.Co-effect of CPX and metal cations on Fe-MCM-41 was investigated.Fe-MCM-41s with various molar ratios...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2018-02-01
|
| Series: | Frontiers in Chemistry |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/article/10.3389/fchem.2018.00017/full |
| _version_ | 1818304268226002944 |
|---|---|
| author | Ying Wu Yiming Tang Yiming Tang Yiming Tang Laisheng Li Laisheng Li Laisheng Li Peihong Liu Peihong Liu Peihong Liu Xukai Li Xukai Li Xukai Li Weirui Chen Ying Xue |
| author_facet | Ying Wu Yiming Tang Yiming Tang Yiming Tang Laisheng Li Laisheng Li Laisheng Li Peihong Liu Peihong Liu Peihong Liu Xukai Li Xukai Li Xukai Li Weirui Chen Ying Xue |
| author_sort | Ying Wu |
| collection | DOAJ |
| description | HIGHLIGHTSFe incorporation significantly accelerated the adsorption of CPX on MCM-41.Fe leaching can be ignored when pH was higher than 4.0.pH played an important role in CPX adsorption on Fe-MCM-41.Co-effect of CPX and metal cations on Fe-MCM-41 was investigated.Fe-MCM-41s with various molar ratios of silicon to iron (20, 40, 80, and 160) were prepared to investigate adsorption properties of ciprofloxacin hydrochloride (CPX) in aqueous solutions. Fe-MCM-41s were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen adsorption/desorption isotherms, and infrared spectroscopy (FT-IR). Effects of silicon-iron ratio, adsorbent dosage, pH, and temperature were conducted to explore the adsorption mechanism of CPX on Fe-MCM-41. The results showed that the introduction of iron facilitated the absorption quantity for CPX from 20.04 to 83.33 mg g−1 at 120 min of reaction time, which was mainly attributed to surface complexation. The promotion of hydrophobic effect, electrostatic interactions, and π-π electron donor-acceptor interaction also played coordinate roles in the adsorption process. The experimental kinetic data followed both the pseudo-second-order and intra-particle diffusion models, while the adsorption isotherm data fit well to Freundlich model at high temperature. Thermodynamic study showed that the adsorption was spontaneous. Under the effect of electrostatic interaction, pH of the solution strongly affected CPX adsorption. Five representative metal cations (Ca, Cu, Ni, Pb, and Cd) were chosen to study the effects on CPX adsorption and their complexation. The inhibiting effect of metal cations on CPX adsorption was sequenced in the order of Cu > Ni > Pb > Cd > Ca, which followed the same order as the complexation stability constants between CPX and cations. The Fe-MCM-41 adsorbent possessed excellent reusability for 4 cycles use, suggesting a potential applicability of Fe-MCM-41 to remove CPX in water. |
| first_indexed | 2024-12-13T06:08:00Z |
| format | Article |
| id | doaj.art-0b883b4b552c4a92b6eb5fadec7cb887 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-13T06:08:00Z |
| publishDate | 2018-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-0b883b4b552c4a92b6eb5fadec7cb8872022-12-21T23:57:10ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462018-02-01610.3389/fchem.2018.00017313261The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41Ying Wu0Yiming Tang1Yiming Tang2Yiming Tang3Laisheng Li4Laisheng Li5Laisheng Li6Peihong Liu7Peihong Liu8Peihong Liu9Xukai Li10Xukai Li11Xukai Li12Weirui Chen13Ying Xue14School of Chemistry and Environment, South China Normal University, Guangzhou, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou, ChinaGuangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, ChinaGuangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou, ChinaGuangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, ChinaGuangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou, ChinaGuangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, ChinaGuangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou, ChinaGuangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, ChinaGuangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou, ChinaHIGHLIGHTSFe incorporation significantly accelerated the adsorption of CPX on MCM-41.Fe leaching can be ignored when pH was higher than 4.0.pH played an important role in CPX adsorption on Fe-MCM-41.Co-effect of CPX and metal cations on Fe-MCM-41 was investigated.Fe-MCM-41s with various molar ratios of silicon to iron (20, 40, 80, and 160) were prepared to investigate adsorption properties of ciprofloxacin hydrochloride (CPX) in aqueous solutions. Fe-MCM-41s were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen adsorption/desorption isotherms, and infrared spectroscopy (FT-IR). Effects of silicon-iron ratio, adsorbent dosage, pH, and temperature were conducted to explore the adsorption mechanism of CPX on Fe-MCM-41. The results showed that the introduction of iron facilitated the absorption quantity for CPX from 20.04 to 83.33 mg g−1 at 120 min of reaction time, which was mainly attributed to surface complexation. The promotion of hydrophobic effect, electrostatic interactions, and π-π electron donor-acceptor interaction also played coordinate roles in the adsorption process. The experimental kinetic data followed both the pseudo-second-order and intra-particle diffusion models, while the adsorption isotherm data fit well to Freundlich model at high temperature. Thermodynamic study showed that the adsorption was spontaneous. Under the effect of electrostatic interaction, pH of the solution strongly affected CPX adsorption. Five representative metal cations (Ca, Cu, Ni, Pb, and Cd) were chosen to study the effects on CPX adsorption and their complexation. The inhibiting effect of metal cations on CPX adsorption was sequenced in the order of Cu > Ni > Pb > Cd > Ca, which followed the same order as the complexation stability constants between CPX and cations. The Fe-MCM-41 adsorbent possessed excellent reusability for 4 cycles use, suggesting a potential applicability of Fe-MCM-41 to remove CPX in water.http://journal.frontiersin.org/article/10.3389/fchem.2018.00017/fullciprofloxacin hydrochlorideFe-MCM-41adsorption capacitypHcomplexationmetal cations |
| spellingShingle | Ying Wu Yiming Tang Yiming Tang Yiming Tang Laisheng Li Laisheng Li Laisheng Li Peihong Liu Peihong Liu Peihong Liu Xukai Li Xukai Li Xukai Li Weirui Chen Ying Xue The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41 Frontiers in Chemistry ciprofloxacin hydrochloride Fe-MCM-41 adsorption capacity pH complexation metal cations |
| title | The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41 |
| title_full | The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41 |
| title_fullStr | The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41 |
| title_full_unstemmed | The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41 |
| title_short | The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41 |
| title_sort | correlation of adsorption behavior between ciprofloxacin hydrochloride and the active sites of fe doped mcm 41 |
| topic | ciprofloxacin hydrochloride Fe-MCM-41 adsorption capacity pH complexation metal cations |
| url | http://journal.frontiersin.org/article/10.3389/fchem.2018.00017/full |
| work_keys_str_mv | AT yingwu thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yimingtang thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yimingtang thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yimingtang thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT laishengli thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT laishengli thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT laishengli thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT peihongliu thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT peihongliu thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT peihongliu thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT xukaili thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT xukaili thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT xukaili thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT weiruichen thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yingxue thecorrelationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yingwu correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yimingtang correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yimingtang correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yimingtang correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT laishengli correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT laishengli correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT laishengli correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT peihongliu correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT peihongliu correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT peihongliu correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT xukaili correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT xukaili correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT xukaili correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT weiruichen correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 AT yingxue correlationofadsorptionbehaviorbetweenciprofloxacinhydrochlorideandtheactivesitesoffedopedmcm41 |