Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies
The removal of heavy metals from water is very difficult. For this reason different methods have been employed so far among which biosorption is the cheapest and ecofriendly way to treat and remove heavy metals from aqueous media. Present study, investigated the ability of potato peel husk (PPH), p...
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| Format: | Article |
| Language: | English |
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National Centre of Excellence in Analytical Chemsitry
2020-06-01
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| Series: | Pakistan Journal of Analytical & Environmental Chemistry |
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| Online Access: | http://www.pjaec.pk/index.php/pjaec/article/view/526/328 |
| _version_ | 1819012566774448128 |
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| author | Tahira Moeen Khan Iram Riaz Shahana Ehsan Bushra Khan Sunbal Asif |
| author_facet | Tahira Moeen Khan Iram Riaz Shahana Ehsan Bushra Khan Sunbal Asif |
| author_sort | Tahira Moeen Khan |
| collection | DOAJ |
| description | The removal of heavy metals from water is very difficult. For this reason different methods have been employed so far among which biosorption is the cheapest and ecofriendly way to treat and remove heavy metals from aqueous media. Present study, investigated the ability of potato peel husk (PPH), potato peel husk modified with lemon juice (LMPPH) and potato peel husk modified with lemon juice & microwave (MLMPPH) for the removal of Pb (II) from water. Organic adsorbent was activated by lemon juice & microwave and was characterized by SEM, EDX and FTIR. Adsorption mechanism (batch parameters) and isothermal studies (Langmuir, Freundlich, Temkin isotherms) revealed the best fitness of Freundlich isotherm from the R2 values indicating physisorption. Results of kinetic studies (pseudo first and second order and intraparticle diffusion) showed that reaction followed pseudo second order kinetics. In thermodynamic study reaction was exothermic (ΔH was negative). The ability of PPH, LMPPH and MLMPPH for removal of lead was also investigated in column studies (bed height, flow rate, influent concentration).Thomas Morrison adsorption model described breakthrough data. Recent study proved that activation of potato peel husk with lemon juice and microwave (MLMPPH) not only increased the sorption capacity of sorbent much more as compared to PPH and LMPPH due to the introduction of excess COOH groups with lemon juice but also their activation as COO- with microwave exposure. |
| first_indexed | 2024-12-21T01:46:06Z |
| format | Article |
| id | doaj.art-0cb1fcfa74724198b79fbbf35b4f4816 |
| institution | Directory Open Access Journal |
| issn | 1996-918X 2221-5255 |
| language | English |
| last_indexed | 2024-12-21T01:46:06Z |
| publishDate | 2020-06-01 |
| publisher | National Centre of Excellence in Analytical Chemsitry |
| record_format | Article |
| series | Pakistan Journal of Analytical & Environmental Chemistry |
| spelling | doaj.art-0cb1fcfa74724198b79fbbf35b4f48162022-12-21T19:20:01ZengNational Centre of Excellence in Analytical ChemsitryPakistan Journal of Analytical & Environmental Chemistry1996-918X2221-52552020-06-01211758610.21743/pjaec/2020.06.09Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column StudiesTahira Moeen Khan0Iram Riaz1Shahana Ehsan2Bushra Khan 3Sunbal Asif4Department of Chemistry, Lahore College for Women University, Jail Road, Lahore, Pakistan.Department of Chemistry, Lahore College for Women University, Jail Road, Lahore, Pakistan.Department of Chemistry, Lahore College for Women University, Jail Road, Lahore, Pakistan.Department of Chemistry, Lahore College for Women University, Jail Road, Lahore, Pakistan.Department of Chemistry, Lahore College for Women University, Jail Road, Lahore, Pakistan.The removal of heavy metals from water is very difficult. For this reason different methods have been employed so far among which biosorption is the cheapest and ecofriendly way to treat and remove heavy metals from aqueous media. Present study, investigated the ability of potato peel husk (PPH), potato peel husk modified with lemon juice (LMPPH) and potato peel husk modified with lemon juice & microwave (MLMPPH) for the removal of Pb (II) from water. Organic adsorbent was activated by lemon juice & microwave and was characterized by SEM, EDX and FTIR. Adsorption mechanism (batch parameters) and isothermal studies (Langmuir, Freundlich, Temkin isotherms) revealed the best fitness of Freundlich isotherm from the R2 values indicating physisorption. Results of kinetic studies (pseudo first and second order and intraparticle diffusion) showed that reaction followed pseudo second order kinetics. In thermodynamic study reaction was exothermic (ΔH was negative). The ability of PPH, LMPPH and MLMPPH for removal of lead was also investigated in column studies (bed height, flow rate, influent concentration).Thomas Morrison adsorption model described breakthrough data. Recent study proved that activation of potato peel husk with lemon juice and microwave (MLMPPH) not only increased the sorption capacity of sorbent much more as compared to PPH and LMPPH due to the introduction of excess COOH groups with lemon juice but also their activation as COO- with microwave exposure.http://www.pjaec.pk/index.php/pjaec/article/view/526/328biosorptionpphnatural modificationsemedxbatch studies |
| spellingShingle | Tahira Moeen Khan Iram Riaz Shahana Ehsan Bushra Khan Sunbal Asif Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies Pakistan Journal of Analytical & Environmental Chemistry biosorption pph natural modification sem edx batch studies |
| title | Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies |
| title_full | Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies |
| title_fullStr | Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies |
| title_full_unstemmed | Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies |
| title_short | Lemon Juice and Microwave Assisted Modification of Potato Peel Husk for Lead Biosorption: Batch and Column Studies |
| title_sort | lemon juice and microwave assisted modification of potato peel husk for lead biosorption batch and column studies |
| topic | biosorption pph natural modification sem edx batch studies |
| url | http://www.pjaec.pk/index.php/pjaec/article/view/526/328 |
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