Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment
The effluents of industrial wastewater contain several toxic organic and inorganic pollutants that may contaminate clean and freshwater sources if untreated or poorly treated. These toxic pollutants include colors; hazardous compounds; surfactants; cosmetics; agrochemicals; pharmaceutical by-product...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/13/7/622 |
| _version_ | 1797588344449794048 |
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| author | Mona Saad Binkadem |
| author_facet | Mona Saad Binkadem |
| author_sort | Mona Saad Binkadem |
| collection | DOAJ |
| description | The effluents of industrial wastewater contain several toxic organic and inorganic pollutants that may contaminate clean and freshwater sources if untreated or poorly treated. These toxic pollutants include colors; hazardous compounds; surfactants; cosmetics; agrochemicals; pharmaceutical by-products; and agricultural, pharmaceutical, and medical contaminants. Treating wastewater has become a global problem. Many projects have been started in the last two decades to treat wastewater, resultant water pollution, and associated waste management problems. Adsorbants based on graphene oxide (GO) are viable wastewater treatment materials due to their adaptability, photocatalytic action, and capacity for self-assembly. Here, we report the fabrication of nanofibrous mats from polycaprolactone (PCL), carboxymethyl arabinoxylan (CMARX), and carboxyl-<i>functionalized</i>-graphene oxide using an electrospinning technique. The silver nanoparticles were loaded onto the mat to enhance their photocatalytic activity. These mats were characterized using different techniques, including Fourier transform infrared (FTIR), scanning electron microscope (SEM), and transmission electron microscope (TEM). The water contact angles were used to study their hydrophilic and hydrophobic behavior. The Langmuir isotherm model and adsorption kinetics were studied to evaluate their adsorption capabilities against methylene blue (MB). Sample 2 followed the Langmuir isotherm model (R<sup>2</sup> = 0.9939). Adsorption kinetics exhibited pseudo-second order behavior (R<sup>2</sup> = 0.9978) due to their maximum correlation coefficient values. MB has excellent adsorption at room temperature and the formation of the monolayer at the surface of the adsorption mat. An enhanced PO<sub>4</sub><sup>3−</sup> and MB adsorption was observed, providing recyclability up to 4–5 times. Hence, the fabricated nanofibrous mat would be a potential candidate for more effective wastewater treatment applications. |
| first_indexed | 2024-03-11T00:50:39Z |
| format | Article |
| id | doaj.art-33b3f9754e684efb88901159523de9b6 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-11T00:50:39Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-33b3f9754e684efb88901159523de9b62023-11-18T20:25:56ZengMDPI AGMembranes2077-03752023-06-0113762210.3390/membranes13070622Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater TreatmentMona Saad Binkadem0Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi ArabiaThe effluents of industrial wastewater contain several toxic organic and inorganic pollutants that may contaminate clean and freshwater sources if untreated or poorly treated. These toxic pollutants include colors; hazardous compounds; surfactants; cosmetics; agrochemicals; pharmaceutical by-products; and agricultural, pharmaceutical, and medical contaminants. Treating wastewater has become a global problem. Many projects have been started in the last two decades to treat wastewater, resultant water pollution, and associated waste management problems. Adsorbants based on graphene oxide (GO) are viable wastewater treatment materials due to their adaptability, photocatalytic action, and capacity for self-assembly. Here, we report the fabrication of nanofibrous mats from polycaprolactone (PCL), carboxymethyl arabinoxylan (CMARX), and carboxyl-<i>functionalized</i>-graphene oxide using an electrospinning technique. The silver nanoparticles were loaded onto the mat to enhance their photocatalytic activity. These mats were characterized using different techniques, including Fourier transform infrared (FTIR), scanning electron microscope (SEM), and transmission electron microscope (TEM). The water contact angles were used to study their hydrophilic and hydrophobic behavior. The Langmuir isotherm model and adsorption kinetics were studied to evaluate their adsorption capabilities against methylene blue (MB). Sample 2 followed the Langmuir isotherm model (R<sup>2</sup> = 0.9939). Adsorption kinetics exhibited pseudo-second order behavior (R<sup>2</sup> = 0.9978) due to their maximum correlation coefficient values. MB has excellent adsorption at room temperature and the formation of the monolayer at the surface of the adsorption mat. An enhanced PO<sub>4</sub><sup>3−</sup> and MB adsorption was observed, providing recyclability up to 4–5 times. Hence, the fabricated nanofibrous mat would be a potential candidate for more effective wastewater treatment applications.https://www.mdpi.com/2077-0375/13/7/622adsorptionbacterial celluloseelectrospinningthin nanofibrous matwastewater treatmentenvironmental pollution treatment |
| spellingShingle | Mona Saad Binkadem Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment Membranes adsorption bacterial cellulose electrospinning thin nanofibrous mat wastewater treatment environmental pollution treatment |
| title | Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment |
| title_full | Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment |
| title_fullStr | Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment |
| title_full_unstemmed | Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment |
| title_short | Fabrication of PCL/CMARX/GO Composite Nanofibrous Mats for Dye Adsorption: Wastewater Treatment |
| title_sort | fabrication of pcl cmarx go composite nanofibrous mats for dye adsorption wastewater treatment |
| topic | adsorption bacterial cellulose electrospinning thin nanofibrous mat wastewater treatment environmental pollution treatment |
| url | https://www.mdpi.com/2077-0375/13/7/622 |
| work_keys_str_mv | AT monasaadbinkadem fabricationofpclcmarxgocompositenanofibrousmatsfordyeadsorptionwastewatertreatment |