Synthesis and characterization of a new magnetic adsorbent for removal of 4-nitrophenol: application of response surface methodology
Magnetic modified graphene oxide was synthesized as a new modified magnetic nano-composite (MMNC) by a simple sonochemical-hydrothermal method. The sonochemical reaction was employed to exfoliate, functionalize and decorate neomycin on graphene oxide sheets. Nickel ferromagnetic particles were synth...
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| creator | Gholamnia, Reza Abtahi, Mehrnoosh Saeedi, Reza Khaloo, Shokooh Sadat |
| description | Magnetic modified graphene oxide was synthesized as a new modified magnetic nano-composite (MMNC) by a simple sonochemical-hydrothermal method. The sonochemical reaction was employed to exfoliate, functionalize and decorate neomycin on graphene oxide sheets. Nickel ferromagnetic particles were synthesized by hydrothermal co-precipitation method and decorated on neomycin-modified graphene oxide. The morphology and chemical structure of MMNC were characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction spectroscopy. The adsorption capability of MMNC for removal of phenolic compounds was assessed through adsorption of 4-nitrophenol (4-NP) from aqueous solution. The three-factor Box-Behnken design coupled with response surface method was applied to evaluate and optimize the important variables which affect the adsorption process. A significant quadratic model (p-value |
| doi_str_mv | 10.2166/wst.2019.390 |
| format | Article |
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= 0.9593) was derived using analysis of variance. The maximum adsorption capacity of 125.4 mg 4-NP/g MMNC at pH 6 was obtained, which was comparable in some cases and higher than most adsorbents reported in the literature. The presence of neomycin on graphene oxide sheets improved the maximum adsorption capacity of the nano-sorbent up to 28% (from 98.7 to 125.4 mg 4-NP/g adsorbent). The adsorption isotherms fitted well with the Langmuir model (Langmuir constant b = 0.064 l/mg, R
= 0.9989) and the kinetic study showed that the nitrophenol uptake process followed the pseudo-second-order rate expression (R
≥ 0.9960, pseudo-second-order constant K
≥ 1.7 × 10
).</description><identifier>ISSN: 0273-1223</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2019.390</identifier><identifier>PMID: 31961806</identifier><language>eng</language><publisher>England: IWA Publishing</publisher><subject>Adsorbents ; Adsorption ; Analytical methods ; Aqueous solutions ; Design factors ; Efficiency ; Electron microscopy ; Environmental impact ; Experiments ; Ferromagnetism ; Fourier transforms ; Graphene ; Kinetics ; Magnetic Phenomena ; Morphology ; Nanocomposites ; Nanomaterials ; Neomycin ; Nickel ; Nitrophenol ; Nitrophenols ; Organic chemistry ; Oxidation ; Phenolic compounds ; Phenols ; Pollutants ; Removal ; Response surface methodology ; Scanning electron microscopy ; Spectroscopy ; Surface chemistry ; Synthesis ; Water Pollutants, Chemical ; Water treatment ; X-ray diffraction</subject><ispartof>Water science and technology, 2019-10, Vol.80 (8), p.1430-1442</ispartof><rights>Copyright IWA Publishing Oct 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-d0e63eaf7cc468898959227ff0eaa1d5ed111fb42258f6f0ad70fe3a7e2f86f3</citedby><cites>FETCH-LOGICAL-c319t-d0e63eaf7cc468898959227ff0eaa1d5ed111fb42258f6f0ad70fe3a7e2f86f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31961806$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gholamnia, Reza</creatorcontrib><creatorcontrib>Abtahi, Mehrnoosh</creatorcontrib><creatorcontrib>Saeedi, Reza</creatorcontrib><creatorcontrib>Khaloo, Shokooh Sadat</creatorcontrib><title>Synthesis and characterization of a new magnetic adsorbent for removal of 4-nitrophenol: application of response surface methodology</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>Magnetic modified graphene oxide was synthesized as a new modified magnetic nano-composite (MMNC) by a simple sonochemical-hydrothermal method. The sonochemical reaction was employed to exfoliate, functionalize and decorate neomycin on graphene oxide sheets. Nickel ferromagnetic particles were synthesized by hydrothermal co-precipitation method and decorated on neomycin-modified graphene oxide. The morphology and chemical structure of MMNC were characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction spectroscopy. The adsorption capability of MMNC for removal of phenolic compounds was assessed through adsorption of 4-nitrophenol (4-NP) from aqueous solution. The three-factor Box-Behnken design coupled with response surface method was applied to evaluate and optimize the important variables which affect the adsorption process. A significant quadratic model (p-value <0.05, R
= 0.9593) was derived using analysis of variance. The maximum adsorption capacity of 125.4 mg 4-NP/g MMNC at pH 6 was obtained, which was comparable in some cases and higher than most adsorbents reported in the literature. The presence of neomycin on graphene oxide sheets improved the maximum adsorption capacity of the nano-sorbent up to 28% (from 98.7 to 125.4 mg 4-NP/g adsorbent). The adsorption isotherms fitted well with the Langmuir model (Langmuir constant b = 0.064 l/mg, R
= 0.9989) and the kinetic study showed that the nitrophenol uptake process followed the pseudo-second-order rate expression (R
≥ 0.9960, pseudo-second-order constant K
≥ 1.7 × 10
).</description><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Analytical methods</subject><subject>Aqueous solutions</subject><subject>Design factors</subject><subject>Efficiency</subject><subject>Electron microscopy</subject><subject>Environmental impact</subject><subject>Experiments</subject><subject>Ferromagnetism</subject><subject>Fourier transforms</subject><subject>Graphene</subject><subject>Kinetics</subject><subject>Magnetic Phenomena</subject><subject>Morphology</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Neomycin</subject><subject>Nickel</subject><subject>Nitrophenol</subject><subject>Nitrophenols</subject><subject>Organic chemistry</subject><subject>Oxidation</subject><subject>Phenolic compounds</subject><subject>Phenols</subject><subject>Pollutants</subject><subject>Removal</subject><subject>Response surface methodology</subject><subject>Scanning electron microscopy</subject><subject>Spectroscopy</subject><subject>Surface chemistry</subject><subject>Synthesis</subject><subject>Water Pollutants, Chemical</subject><subject>Water treatment</subject><subject>X-ray 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Phenomena</topic><topic>Morphology</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Neomycin</topic><topic>Nickel</topic><topic>Nitrophenol</topic><topic>Nitrophenols</topic><topic>Organic chemistry</topic><topic>Oxidation</topic><topic>Phenolic compounds</topic><topic>Phenols</topic><topic>Pollutants</topic><topic>Removal</topic><topic>Response surface methodology</topic><topic>Scanning electron microscopy</topic><topic>Spectroscopy</topic><topic>Surface chemistry</topic><topic>Synthesis</topic><topic>Water Pollutants, Chemical</topic><topic>Water treatment</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gholamnia, Reza</creatorcontrib><creatorcontrib>Abtahi, Mehrnoosh</creatorcontrib><creatorcontrib>Saeedi, Reza</creatorcontrib><creatorcontrib>Khaloo, Shokooh Sadat</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE 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surface methodology</atitle><jtitle>Water science and technology</jtitle><addtitle>Water Sci Technol</addtitle><date>2019-10-15</date><risdate>2019</risdate><volume>80</volume><issue>8</issue><spage>1430</spage><epage>1442</epage><pages>1430-1442</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><abstract>Magnetic modified graphene oxide was synthesized as a new modified magnetic nano-composite (MMNC) by a simple sonochemical-hydrothermal method. The sonochemical reaction was employed to exfoliate, functionalize and decorate neomycin on graphene oxide sheets. Nickel ferromagnetic particles were synthesized by hydrothermal co-precipitation method and decorated on neomycin-modified graphene oxide. The morphology and chemical structure of MMNC were characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction spectroscopy. The adsorption capability of MMNC for removal of phenolic compounds was assessed through adsorption of 4-nitrophenol (4-NP) from aqueous solution. The three-factor Box-Behnken design coupled with response surface method was applied to evaluate and optimize the important variables which affect the adsorption process. A significant quadratic model (p-value <0.05, R
= 0.9593) was derived using analysis of variance. The maximum adsorption capacity of 125.4 mg 4-NP/g MMNC at pH 6 was obtained, which was comparable in some cases and higher than most adsorbents reported in the literature. The presence of neomycin on graphene oxide sheets improved the maximum adsorption capacity of the nano-sorbent up to 28% (from 98.7 to 125.4 mg 4-NP/g adsorbent). The adsorption isotherms fitted well with the Langmuir model (Langmuir constant b = 0.064 l/mg, R
= 0.9989) and the kinetic study showed that the nitrophenol uptake process followed the pseudo-second-order rate expression (R
≥ 0.9960, pseudo-second-order constant K
≥ 1.7 × 10
).</abstract><cop>England</cop><pub>IWA Publishing</pub><pmid>31961806</pmid><doi>10.2166/wst.2019.390</doi><tpages>13</tpages></addata></record> |
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| ispartof | Water science and technology, 2019-10, Vol.80 (8), p.1430-1442 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Adsorbents Adsorption Analytical methods Aqueous solutions Design factors Efficiency Electron microscopy Environmental impact Experiments Ferromagnetism Fourier transforms Graphene Kinetics Magnetic Phenomena Morphology Nanocomposites Nanomaterials Neomycin Nickel Nitrophenol Nitrophenols Organic chemistry Oxidation Phenolic compounds Phenols Pollutants Removal Response surface methodology Scanning electron microscopy Spectroscopy Surface chemistry Synthesis Water Pollutants, Chemical Water treatment X-ray diffraction |
| title | Synthesis and characterization of a new magnetic adsorbent for removal of 4-nitrophenol: application of response surface methodology |
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