Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies
This study was aimed to evaluate the dielectric properties of sodium hydroxide-impregnated samples and activated carbons derived from jackfruit peel (Artocarpus chempeden, Artocarpus integer). The dielectric properties were examined by using open-ended coaxial probe method at microwave frequencies....
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Italian Association of Chemical Engineering - AIDIC
2017
|
| Subjects: |
| _version_ | 1796862404177428480 |
|---|---|
| author | Alias, N. Kamaruddin, M. J. Zaini, M. A. A. |
| author_facet | Alias, N. Kamaruddin, M. J. Zaini, M. A. A. |
| author_sort | Alias, N. |
| collection | ePrints |
| description | This study was aimed to evaluate the dielectric properties of sodium hydroxide-impregnated samples and activated carbons derived from jackfruit peel (Artocarpus chempeden, Artocarpus integer). The dielectric properties were examined by using open-ended coaxial probe method at microwave frequencies. The results show that the dielectric properties of cempedak peel samples are influenced by frequency, concentration of activator, moisture content and carbon content. The impregnated sample with NaOH ratio of 1.5 (CN1.5) showed a better microwave absorber due to sufficient moisture content (8.55 %), consequently higher tan δ. Sodium hydroxide can function as microwave absorber to enhance the efficiency of microwave heating for low loss material like cempedak peel. Moisture content and carbon content have to be taken into consideration as these parameters can influence the dielectric properties of the modified cempedak peel samples. |
| first_indexed | 2024-03-05T20:11:08Z |
| format | Article |
| id | utm.eprints-75794 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:11:08Z |
| publishDate | 2017 |
| publisher | Italian Association of Chemical Engineering - AIDIC |
| record_format | dspace |
| spelling | utm.eprints-757942018-05-30T03:58:03Z http://eprints.utm.my/75794/ Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies Alias, N. Kamaruddin, M. J. Zaini, M. A. A. TP Chemical technology This study was aimed to evaluate the dielectric properties of sodium hydroxide-impregnated samples and activated carbons derived from jackfruit peel (Artocarpus chempeden, Artocarpus integer). The dielectric properties were examined by using open-ended coaxial probe method at microwave frequencies. The results show that the dielectric properties of cempedak peel samples are influenced by frequency, concentration of activator, moisture content and carbon content. The impregnated sample with NaOH ratio of 1.5 (CN1.5) showed a better microwave absorber due to sufficient moisture content (8.55 %), consequently higher tan δ. Sodium hydroxide can function as microwave absorber to enhance the efficiency of microwave heating for low loss material like cempedak peel. Moisture content and carbon content have to be taken into consideration as these parameters can influence the dielectric properties of the modified cempedak peel samples. Italian Association of Chemical Engineering - AIDIC 2017 Article PeerReviewed Alias, N. and Kamaruddin, M. J. and Zaini, M. A. A. (2017) Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies. Chemical Engineering Transactions, 56 . pp. 931-936. ISSN 2283-9216 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019447351&doi=10.3303%2fCET1756156&partnerID=40&md5=aef6deb115a4b4be4fe2b2bcff6198ba |
| spellingShingle | TP Chemical technology Alias, N. Kamaruddin, M. J. Zaini, M. A. A. Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies |
| title | Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies |
| title_full | Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies |
| title_fullStr | Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies |
| title_full_unstemmed | Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies |
| title_short | Dielectric properties of sodium hydroxide-impregnated and activated cempedak peel samples at microwave frequencies |
| title_sort | dielectric properties of sodium hydroxide impregnated and activated cempedak peel samples at microwave frequencies |
| topic | TP Chemical technology |
| work_keys_str_mv | AT aliasn dielectricpropertiesofsodiumhydroxideimpregnatedandactivatedcempedakpeelsamplesatmicrowavefrequencies AT kamaruddinmj dielectricpropertiesofsodiumhydroxideimpregnatedandactivatedcempedakpeelsamplesatmicrowavefrequencies AT zainimaa dielectricpropertiesofsodiumhydroxideimpregnatedandactivatedcempedakpeelsamplesatmicrowavefrequencies |