Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater
Herein, Taguchi L9 orthogonal array was used for the first time to optimize synthesis of diameter-controlled multi walled carbon nanotubes (MWCNTs). The nanoadsorbents, MWCNTs5-15 nm and MWCNTs16-25 nm were applied for Pb(II) and Ni(II) ion removal from paint, battery and electroplating wastewater....
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/148825 |
| _version_ | 1811685352582152192 |
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| author | Egbosiuba, Titus Chinedu Abdulkareem, Ambali Saka Tijani, Jimoh Oladejo Ani, Jacinta Ijeoma Krikstolaityte, Vida Srinivasan, Madhavi Veksha, Andrei Lisak, Grzegorz |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Egbosiuba, Titus Chinedu Abdulkareem, Ambali Saka Tijani, Jimoh Oladejo Ani, Jacinta Ijeoma Krikstolaityte, Vida Srinivasan, Madhavi Veksha, Andrei Lisak, Grzegorz |
| author_sort | Egbosiuba, Titus Chinedu |
| collection | NTU |
| description | Herein, Taguchi L9 orthogonal array was used for the first time to optimize synthesis of diameter-controlled multi walled carbon nanotubes (MWCNTs). The nanoadsorbents, MWCNTs5-15 nm and MWCNTs16-25 nm were applied for Pb(II) and Ni(II) ion removal from paint, battery and electroplating wastewater. The results indicated successful synthesis of MWCNTs with diameter distribution ranges of 5-15 nm and 16-25 nm. The synthetized smaller diameter MWCNTs5-15 nm revealed higher Brunauer-Emett-Teller (BET) surface area of 1306 ± 5 m2/g compared to larger diameter MWCNTs16-25 nmwith the surface area of 1245 ± 4 m2/g. They demonstrated excellent adsorption of Pb(II) and Ni(II) ions within the permissible concentration proposed by WHO at pH, contact time, adsorbent dosage and temperature of 5, 60 min, 30 mg/L and 50 °C, respectively. Particularly, MWCNTs5-15 nm possessed high adsorption capacity of 215.38 ± 0.03 mg/g for Pb(II) and 230.78 ± 0.01 mg/g for Ni(II). Again, the maximum adsorption capacity of 201.35 ± 0.02 and 206.40 ± 0.02 mg/g was achieved for Pb(II) and Ni(II) using MWCNTs16-25 nm. All in all, the adsorption capacity of the nanoadsorbents at the investigated diameter range showed higher efficiency compared to other materials for heavy metals elimination from chemical industrial wastewater. |
| first_indexed | 2024-10-01T04:43:10Z |
| format | Journal Article |
| id | ntu-10356/148825 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:43:10Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1488252022-07-21T08:51:57Z Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater Egbosiuba, Titus Chinedu Abdulkareem, Ambali Saka Tijani, Jimoh Oladejo Ani, Jacinta Ijeoma Krikstolaityte, Vida Srinivasan, Madhavi Veksha, Andrei Lisak, Grzegorz School of Civil and Environmental Engineering Energy Research Institute @ NTU (ERI@N) Nanyang Environment and Water Research Institute Engineering::Materials Engineering::Chemical engineering Nanoadsorbent Adsorption Herein, Taguchi L9 orthogonal array was used for the first time to optimize synthesis of diameter-controlled multi walled carbon nanotubes (MWCNTs). The nanoadsorbents, MWCNTs5-15 nm and MWCNTs16-25 nm were applied for Pb(II) and Ni(II) ion removal from paint, battery and electroplating wastewater. The results indicated successful synthesis of MWCNTs with diameter distribution ranges of 5-15 nm and 16-25 nm. The synthetized smaller diameter MWCNTs5-15 nm revealed higher Brunauer-Emett-Teller (BET) surface area of 1306 ± 5 m2/g compared to larger diameter MWCNTs16-25 nmwith the surface area of 1245 ± 4 m2/g. They demonstrated excellent adsorption of Pb(II) and Ni(II) ions within the permissible concentration proposed by WHO at pH, contact time, adsorbent dosage and temperature of 5, 60 min, 30 mg/L and 50 °C, respectively. Particularly, MWCNTs5-15 nm possessed high adsorption capacity of 215.38 ± 0.03 mg/g for Pb(II) and 230.78 ± 0.01 mg/g for Ni(II). Again, the maximum adsorption capacity of 201.35 ± 0.02 and 206.40 ± 0.02 mg/g was achieved for Pb(II) and Ni(II) using MWCNTs16-25 nm. All in all, the adsorption capacity of the nanoadsorbents at the investigated diameter range showed higher efficiency compared to other materials for heavy metals elimination from chemical industrial wastewater. Ministry of National Development (MND) National Environmental Agency (NEA) National Research Foundation (NRF) This research was made possible through the financial support of the Petroleum Technology Development Fund, Nigeria (grant number PTDF/ED/LSS/PhD/TCE/123/17). SCARCE is supported by the National Research Foundation, Prime Minister’s Office, Singapore, the Ministry of National Development, Singapore, and National Environment Agency, Ministry of Sustainability and the Environment, Singapore under the Closing the Waste Loop R&D Initiative as part of the Urban Solutions & Sustainability e Integration Fund (Award No. USS-IF-2018-4). 2021-06-08T03:41:33Z 2021-06-08T03:41:33Z 2021 Journal Article Egbosiuba, T. C., Abdulkareem, A. S., Tijani, J. O., Ani, J. I., Krikstolaityte, V., Srinivasan, M., Veksha, A. & Lisak, G. (2021). Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater. Chemosphere, 266, 128937-. https://dx.doi.org/10.1016/j.chemosphere.2020.128937 0045-6535 0000-0001-9023-2419 https://hdl.handle.net/10356/148825 10.1016/j.chemosphere.2020.128937 33280844 2-s2.0-85097236399 266 128937 en SCARCE USS-IF-2018-4 Chemosphere © 2020 Elsevier Ltd. All rights reserved. This paper was published in Chemosphere and is made available with permission of Elsevier Ltd. application/pdf |
| spellingShingle | Engineering::Materials Engineering::Chemical engineering Nanoadsorbent Adsorption Egbosiuba, Titus Chinedu Abdulkareem, Ambali Saka Tijani, Jimoh Oladejo Ani, Jacinta Ijeoma Krikstolaityte, Vida Srinivasan, Madhavi Veksha, Andrei Lisak, Grzegorz Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater |
| title | Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater |
| title_full | Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater |
| title_fullStr | Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater |
| title_full_unstemmed | Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater |
| title_short | Taguchi optimization design of diameter-controlled synthesis of multi walled carbon nanotubes for the adsorption of Pb(II) and Ni(II) from chemical industry wastewater |
| title_sort | taguchi optimization design of diameter controlled synthesis of multi walled carbon nanotubes for the adsorption of pb ii and ni ii from chemical industry wastewater |
| topic | Engineering::Materials Engineering::Chemical engineering Nanoadsorbent Adsorption |
| url | https://hdl.handle.net/10356/148825 |
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