Removal of cadmium from water by CNT–PAC composite: effect of functionalization
Cadmium (Cd2þ) is one of the toxic heavy metals that is frequently used in many industrial products. The wastewater from these industries and their products contains residual cadmium that are di±cult to be removed economically from the e®luent. Carbon nanotubes (CNTs) were synthesized in several...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English English English |
| Published: |
World Scientic Publishing Company
2016
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/46622/ http://irep.iium.edu.my/46622/1/Published_Paper_Nano.pdf http://irep.iium.edu.my/46622/4/46622_Removal%20of%20cadmium%20from%20water_SCOPUS.pdf http://irep.iium.edu.my/46622/5/46622_Removal%20of%20cadmium%20from%20water_WOS.pdf |
| _version_ | 1848782999941808128 |
|---|---|
| author | AlSaadi, Mohammed A. Mamun, Abdullah Al Alam, Md Zahangir Amosa, Mutiu Kolade Atieh, Muataz Ali |
| author_facet | AlSaadi, Mohammed A. Mamun, Abdullah Al Alam, Md Zahangir Amosa, Mutiu Kolade Atieh, Muataz Ali |
| author_sort | AlSaadi, Mohammed A. |
| building | IIUM Repository |
| collection | Online Access |
| description | Cadmium (Cd2þ) is one of the toxic heavy metals that is frequently used in many industrial
products. The wastewater from these industries and their products contains residual cadmium
that are di±cult to be removed economically from the e®luent. Carbon nanotubes (CNTs) were
synthesized in several batches and tested for their removal e±cacy with regards to cadmium
removal from synthetic wastewater. Fixed catalyst chemical vapor deposition (FCCVD) reactor
system was fabricated in the laboratory for the synthesis of CNTs on the powdered activated
carbons (PACs). The PACs were impregnated with Fe3þ catalysts, and growth parameters such
as, the reaction time, gas °ow rates and reaction temperature were optimized. The sorption
capacity of the raw CNT–PAC was not satisfactory until the sorbents were functionalized which
eventually led to high adsorption capacities. The surface properties of CNT–PAC were modi¯ed
by oxidative functionalization using two di®erent methods: sonication with KMnO4 and re°uxing
with HNO3 at 140�C. KMnO4-treated CNT–PAC exhibited the highest sorption capacity for
cadmium uptake which increased from 4.77 mg/g (untreated CNT–PAC) to 11.16 mg/g;
resulting in Cd2þ removal e±ciency from 38.87% to 98.35%. |
| first_indexed | 2025-11-14T16:14:23Z |
| format | Article |
| id | iium-46622 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T16:14:23Z |
| publishDate | 2016 |
| publisher | World Scientic Publishing Company |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-466222017-10-21T11:24:40Z http://irep.iium.edu.my/46622/ Removal of cadmium from water by CNT–PAC composite: effect of functionalization AlSaadi, Mohammed A. Mamun, Abdullah Al Alam, Md Zahangir Amosa, Mutiu Kolade Atieh, Muataz Ali TD169 Environmental protection Cadmium (Cd2þ) is one of the toxic heavy metals that is frequently used in many industrial products. The wastewater from these industries and their products contains residual cadmium that are di±cult to be removed economically from the e®luent. Carbon nanotubes (CNTs) were synthesized in several batches and tested for their removal e±cacy with regards to cadmium removal from synthetic wastewater. Fixed catalyst chemical vapor deposition (FCCVD) reactor system was fabricated in the laboratory for the synthesis of CNTs on the powdered activated carbons (PACs). The PACs were impregnated with Fe3þ catalysts, and growth parameters such as, the reaction time, gas °ow rates and reaction temperature were optimized. The sorption capacity of the raw CNT–PAC was not satisfactory until the sorbents were functionalized which eventually led to high adsorption capacities. The surface properties of CNT–PAC were modi¯ed by oxidative functionalization using two di®erent methods: sonication with KMnO4 and re°uxing with HNO3 at 140�C. KMnO4-treated CNT–PAC exhibited the highest sorption capacity for cadmium uptake which increased from 4.77 mg/g (untreated CNT–PAC) to 11.16 mg/g; resulting in Cd2þ removal e±ciency from 38.87% to 98.35%. World Scientic Publishing Company 2016-01-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/46622/1/Published_Paper_Nano.pdf application/pdf en http://irep.iium.edu.my/46622/4/46622_Removal%20of%20cadmium%20from%20water_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/46622/5/46622_Removal%20of%20cadmium%20from%20water_WOS.pdf AlSaadi, Mohammed A. and Mamun, Abdullah Al and Alam, Md Zahangir and Amosa, Mutiu Kolade and Atieh, Muataz Ali (2016) Removal of cadmium from water by CNT–PAC composite: effect of functionalization. NANO: Brief Reports and Reviews, 11 (1). 1650011-1-1650011-7. ISSN 1793-2920 http://www.worldscientific.com/worldscinet/nano 10.1142/S1793292016500119 |
| spellingShingle | TD169 Environmental protection AlSaadi, Mohammed A. Mamun, Abdullah Al Alam, Md Zahangir Amosa, Mutiu Kolade Atieh, Muataz Ali Removal of cadmium from water by CNT–PAC composite: effect of functionalization |
| title | Removal of cadmium from water by CNT–PAC composite: effect of functionalization |
| title_full | Removal of cadmium from water by CNT–PAC composite: effect of functionalization |
| title_fullStr | Removal of cadmium from water by CNT–PAC composite: effect of functionalization |
| title_full_unstemmed | Removal of cadmium from water by CNT–PAC composite: effect of functionalization |
| title_short | Removal of cadmium from water by CNT–PAC composite: effect of functionalization |
| title_sort | removal of cadmium from water by cnt–pac composite: effect of functionalization |
| topic | TD169 Environmental protection |
| url | http://irep.iium.edu.my/46622/ http://irep.iium.edu.my/46622/ http://irep.iium.edu.my/46622/ http://irep.iium.edu.my/46622/1/Published_Paper_Nano.pdf http://irep.iium.edu.my/46622/4/46622_Removal%20of%20cadmium%20from%20water_SCOPUS.pdf http://irep.iium.edu.my/46622/5/46622_Removal%20of%20cadmium%20from%20water_WOS.pdf |