A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II)
Abstract To date, many nanoadsorbents have been developed and used to eliminate heavy metal contamination, however, one of the challenges ahead is the preparation of adsorbents from processes in which toxic organic solvents are used in the least possible amount. Herein, we have developed a new carbo...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-81095-w |
| _version_ | 1818750520170381312 |
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| author | Roozbeh Soltani Rasool Pelalak Mahboubeh Pishnamazi Azam Marjani Ahmad B. Albadarin Shaheen M. Sarkar Saeed Shirazian |
| author_facet | Roozbeh Soltani Rasool Pelalak Mahboubeh Pishnamazi Azam Marjani Ahmad B. Albadarin Shaheen M. Sarkar Saeed Shirazian |
| author_sort | Roozbeh Soltani |
| collection | DOAJ |
| description | Abstract To date, many nanoadsorbents have been developed and used to eliminate heavy metal contamination, however, one of the challenges ahead is the preparation of adsorbents from processes in which toxic organic solvents are used in the least possible amount. Herein, we have developed a new carboxylic acid-functionalized layered double hydroxide/metal–organic framework nanocomposite (LDH/MOF NC) using a simple, effective, and green in situ method. UiO-66-(Zr)-(COOH)2 MOF nanocrystals were grown uniformly over the whole surface of COOH-functionalized Ni50Co50-LDH ultrathin nanosheets in a green water system under a normal solvothermal condition at 100 °C. The synthesized LDH/MOF NC was used as a potential adsorbent for removal of toxic Cd(II) and Pb(II) from water and the influence of important factors on the adsorption process was monitored. Various non-linear isotherm and kinetic models were used to find plausible mechanisms involved in the adsorption, and it was found that the Langmuir and pseudo-first-order models show the best agreement with isotherm and kinetic data, respectively. The calculated maximum adsorption capacities of Cd(II) and Pb(II) by the LDH/MOF NC were found to be 415.3 and 301.4 mg g−1, respectively, based on the Langmuir model (pH = 5.0, adsorbent dose = 0.02 g, solution volume = 20 mL, contact time = 120 min, temperature = 25 ℃, shaking speed 200 rpm). |
| first_indexed | 2024-12-18T04:20:59Z |
| format | Article |
| id | doaj.art-fa18d42f1e4d426193b85cb8680f95a2 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-18T04:20:59Z |
| publishDate | 2021-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-fa18d42f1e4d426193b85cb8680f95a22022-12-21T21:21:14ZengNature PortfolioScientific Reports2045-23222021-01-0111111510.1038/s41598-021-81095-wA novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II)Roozbeh Soltani0Rasool Pelalak1Mahboubeh Pishnamazi2Azam Marjani3Ahmad B. Albadarin4Shaheen M. Sarkar5Saeed Shirazian6Department of Chemistry, Arak Branch, Islamic Azad UniversityInstitute of Research and Development, Duy Tan UniversityInstitute of Research and Development, Duy Tan UniversityDepartment for Management of Science and Technology Development, Ton Duc Thang UniversityDepartment of Chemical Sciences, Bernal Institute, University of LimerickDepartment of Chemical Sciences, Bernal Institute, University of LimerickInstitute of Research and Development, Duy Tan UniversityAbstract To date, many nanoadsorbents have been developed and used to eliminate heavy metal contamination, however, one of the challenges ahead is the preparation of adsorbents from processes in which toxic organic solvents are used in the least possible amount. Herein, we have developed a new carboxylic acid-functionalized layered double hydroxide/metal–organic framework nanocomposite (LDH/MOF NC) using a simple, effective, and green in situ method. UiO-66-(Zr)-(COOH)2 MOF nanocrystals were grown uniformly over the whole surface of COOH-functionalized Ni50Co50-LDH ultrathin nanosheets in a green water system under a normal solvothermal condition at 100 °C. The synthesized LDH/MOF NC was used as a potential adsorbent for removal of toxic Cd(II) and Pb(II) from water and the influence of important factors on the adsorption process was monitored. Various non-linear isotherm and kinetic models were used to find plausible mechanisms involved in the adsorption, and it was found that the Langmuir and pseudo-first-order models show the best agreement with isotherm and kinetic data, respectively. The calculated maximum adsorption capacities of Cd(II) and Pb(II) by the LDH/MOF NC were found to be 415.3 and 301.4 mg g−1, respectively, based on the Langmuir model (pH = 5.0, adsorbent dose = 0.02 g, solution volume = 20 mL, contact time = 120 min, temperature = 25 ℃, shaking speed 200 rpm).https://doi.org/10.1038/s41598-021-81095-w |
| spellingShingle | Roozbeh Soltani Rasool Pelalak Mahboubeh Pishnamazi Azam Marjani Ahmad B. Albadarin Shaheen M. Sarkar Saeed Shirazian A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II) Scientific Reports |
| title | A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II) |
| title_full | A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II) |
| title_fullStr | A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II) |
| title_full_unstemmed | A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II) |
| title_short | A novel and facile green synthesis method to prepare LDH/MOF nanocomposite for removal of Cd(II) and Pb(II) |
| title_sort | novel and facile green synthesis method to prepare ldh mof nanocomposite for removal of cd ii and pb ii |
| url | https://doi.org/10.1038/s41598-021-81095-w |
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