Biosorption of Fe(II) and Mn(II) Ions from Aqueous Solution by Rice Husk Ash
Rice husk ash (RHA), an agricultural waste, was used as biosorbent for the removal of Iron(II) and Manganese(II) ions from aqueous solutions. The structural and morphological characteristics of RHA and its elemental compositions before and after adsorption of Fe(II) and Mn(II) were determined by sca...
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| Veröffentlicht in: | BioMed research international 2014-01, Vol.2014 (2014), p.1-10 |
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| creator | Zhang, Ying Zhao, Jiaying Jiang, Zhao Shan, Dexin Lu, Yan |
| description | Rice husk ash (RHA), an agricultural waste, was used as biosorbent for the removal of Iron(II) and Manganese(II) ions from aqueous solutions. The structural and morphological characteristics of RHA and its elemental compositions before and after adsorption of Fe(II) and Mn(II) were determined by scanning electron microscopic (SEM) and X-ray fluorescence (XRF) analyses. Batch experiments were carried out to determine the influence of initial pH, contact time, adsorbent dosage, and initial concentration on the removal of Fe(II) and Mn(II) ions. Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of the metal ions by RHA. The correlation coefficient (R2) of Langmuir and Freundlich isotherm models equals 0.995 and 0.901 for Fe(II), 0.9862 and 0.8924 for Mn(II), respectively, so the Langmuir model fitted the equilibrium data better than the Freundlich isotherm model. The mean free energy values evaluated from the D-R model indicated that the biosorption of Fe(II) and Mn(II) onto RHA was physical in nature. Experimental data also showed that the biosorption processes of both metal ions complied with the pseudo-second-order kinetics. |
| doi_str_mv | 10.1155/2014/973095 |
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The structural and morphological characteristics of RHA and its elemental compositions before and after adsorption of Fe(II) and Mn(II) were determined by scanning electron microscopic (SEM) and X-ray fluorescence (XRF) analyses. Batch experiments were carried out to determine the influence of initial pH, contact time, adsorbent dosage, and initial concentration on the removal of Fe(II) and Mn(II) ions. Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of the metal ions by RHA. The correlation coefficient (R2) of Langmuir and Freundlich isotherm models equals 0.995 and 0.901 for Fe(II), 0.9862 and 0.8924 for Mn(II), respectively, so the Langmuir model fitted the equilibrium data better than the Freundlich isotherm model. The mean free energy values evaluated from the D-R model indicated that the biosorption of Fe(II) and Mn(II) onto RHA was physical in nature. Experimental data also showed that the biosorption processes of both metal ions complied with the pseudo-second-order kinetics.</description><identifier>ISSN: 2314-6133</identifier><identifier>EISSN: 2314-6141</identifier><identifier>DOI: 10.1155/2014/973095</identifier><identifier>PMID: 24982918</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Puplishing Corporation</publisher><subject>Activated carbon ; Adsorbents ; Adsorption ; Aqueous solutions ; Biodegradation, Environmental ; Equilibrium ; Experiments ; Groundwater ; Hydrogen-Ion Concentration ; Ions ; Iron - isolation & purification ; Kinetics ; Manganese - isolation & purification ; Metals ; Oryza - chemistry ; Oryza - ultrastructure ; Oryza sativa ; Rice ; Solutions ; Spectrometry, X-Ray Emission ; Studies ; Temperature ; Time Factors ; Waste Products ; Water treatment</subject><ispartof>BioMed research international, 2014-01, Vol.2014 (2014), p.1-10</ispartof><rights>Copyright © 2014 Ying Zhang et al.</rights><rights>Copyright © 2014 Ying Zhang et al. Ying Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</rights><rights>Copyright © 2014 Ying Zhang et al. 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c565t-2c2a95a02fccc2a3c544a60b3350de37015c9fab837c9302ce3bdb5f3990a4773</citedby><cites>FETCH-LOGICAL-c565t-2c2a95a02fccc2a3c544a60b3350de37015c9fab837c9302ce3bdb5f3990a4773</cites><orcidid>0000-0003-4196-161X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4058686/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4058686/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24982918$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Mahmood, Qaisar</contributor><creatorcontrib>Zhang, Ying</creatorcontrib><creatorcontrib>Zhao, Jiaying</creatorcontrib><creatorcontrib>Jiang, Zhao</creatorcontrib><creatorcontrib>Shan, Dexin</creatorcontrib><creatorcontrib>Lu, Yan</creatorcontrib><title>Biosorption of Fe(II) and Mn(II) Ions from Aqueous Solution by Rice Husk Ash</title><title>BioMed research international</title><addtitle>Biomed Res Int</addtitle><description>Rice husk ash (RHA), an agricultural waste, was used as biosorbent for the removal of Iron(II) and Manganese(II) ions from aqueous solutions. The structural and morphological characteristics of RHA and its elemental compositions before and after adsorption of Fe(II) and Mn(II) were determined by scanning electron microscopic (SEM) and X-ray fluorescence (XRF) analyses. Batch experiments were carried out to determine the influence of initial pH, contact time, adsorbent dosage, and initial concentration on the removal of Fe(II) and Mn(II) ions. Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of the metal ions by RHA. The correlation coefficient (R2) of Langmuir and Freundlich isotherm models equals 0.995 and 0.901 for Fe(II), 0.9862 and 0.8924 for Mn(II), respectively, so the Langmuir model fitted the equilibrium data better than the Freundlich isotherm model. The mean free energy values evaluated from the D-R model indicated that the biosorption of Fe(II) and Mn(II) onto RHA was physical in nature. Experimental data also showed that the biosorption processes of both metal ions complied with the pseudo-second-order kinetics.</description><subject>Activated carbon</subject><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Aqueous solutions</subject><subject>Biodegradation, Environmental</subject><subject>Equilibrium</subject><subject>Experiments</subject><subject>Groundwater</subject><subject>Hydrogen-Ion Concentration</subject><subject>Ions</subject><subject>Iron - isolation & purification</subject><subject>Kinetics</subject><subject>Manganese - isolation & purification</subject><subject>Metals</subject><subject>Oryza - chemistry</subject><subject>Oryza - ultrastructure</subject><subject>Oryza sativa</subject><subject>Rice</subject><subject>Solutions</subject><subject>Spectrometry, X-Ray Emission</subject><subject>Studies</subject><subject>Temperature</subject><subject>Time Factors</subject><subject>Waste Products</subject><subject>Water 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Edition</collection><collection>ProQuest Central China</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>BioMed research international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Ying</au><au>Zhao, Jiaying</au><au>Jiang, Zhao</au><au>Shan, Dexin</au><au>Lu, Yan</au><au>Mahmood, Qaisar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biosorption of Fe(II) and Mn(II) Ions from Aqueous Solution by Rice Husk Ash</atitle><jtitle>BioMed research international</jtitle><addtitle>Biomed Res Int</addtitle><date>2014-01-01</date><risdate>2014</risdate><volume>2014</volume><issue>2014</issue><spage>1</spage><epage>10</epage><pages>1-10</pages><issn>2314-6133</issn><eissn>2314-6141</eissn><abstract>Rice husk ash (RHA), an agricultural waste, was used as biosorbent for the removal of Iron(II) and Manganese(II) ions from aqueous solutions. The structural and morphological characteristics of RHA and its elemental compositions before and after adsorption of Fe(II) and Mn(II) were determined by scanning electron microscopic (SEM) and X-ray fluorescence (XRF) analyses. Batch experiments were carried out to determine the influence of initial pH, contact time, adsorbent dosage, and initial concentration on the removal of Fe(II) and Mn(II) ions. Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of the metal ions by RHA. The correlation coefficient (R2) of Langmuir and Freundlich isotherm models equals 0.995 and 0.901 for Fe(II), 0.9862 and 0.8924 for Mn(II), respectively, so the Langmuir model fitted the equilibrium data better than the Freundlich isotherm model. The mean free energy values evaluated from the D-R model indicated that the biosorption of Fe(II) and Mn(II) onto RHA was physical in nature. Experimental data also showed that the biosorption processes of both metal ions complied with the pseudo-second-order kinetics.</abstract><cop>Cairo, Egypt</cop><pub>Hindawi Puplishing Corporation</pub><pmid>24982918</pmid><doi>10.1155/2014/973095</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-4196-161X</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Activated carbon Adsorbents Adsorption Aqueous solutions Biodegradation, Environmental Equilibrium Experiments Groundwater Hydrogen-Ion Concentration Ions Iron - isolation & purification Kinetics Manganese - isolation & purification Metals Oryza - chemistry Oryza - ultrastructure Oryza sativa Rice Solutions Spectrometry, X-Ray Emission Studies Temperature Time Factors Waste Products Water treatment |
| title | Biosorption of Fe(II) and Mn(II) Ions from Aqueous Solution by Rice Husk Ash |
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