PENGARUH ION Pb(II) DAN ION Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG TERKATALISIS TiO2
The influences of Pb(II) and Cd(II) ions with variation of concentration and pH on the photoreduction of Hg(II) ion photocatalyzed by TiO2 have been studied. The photoreduction process was carried out by irradiating a mixture of Hg(II) ion solution and TiO2 photocatalyst powder with or without Pb(II...
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| Format: | Thesis |
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[Yogyakarta] : Universitas Gadjah Mada
2012
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| _version_ | 1797032413230006272 |
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| author | , CORY NOVI , Prof.Dr. Endang Tri Wahyuni, M.S, |
| author_facet | , CORY NOVI , Prof.Dr. Endang Tri Wahyuni, M.S, |
| author_sort | , CORY NOVI |
| collection | UGM |
| description | The influences of Pb(II) and Cd(II) ions with variation of concentration
and pH on the photoreduction of Hg(II) ion photocatalyzed by TiO2 have been
studied. The photoreduction process was carried out by irradiating a mixture of
Hg(II) ion solution and TiO2 photocatalyst powder with or without Pb(II) and
Cd(II) ions in a closed reactor equipped with UV lamp and under continous
stirring. The effectiveness of the photoreduced Hg(II) ion in the solution was
calculated by substracting the initial Hg(II) concentration by the unreduced
concentration after the photoreduction process. The unreduced Hg(II) ion
concentration was determined by Cold Vapor Atomic Absorption
Spectrophotometric method (CV-AAS).
The results of the research showed the effectiveness of Hg(II) ion
photoreduction catalyzed by TiO2 improves with the increasing Pb(II) ion because
of sinergy effect in the solution. On the other hand, the effectiveness of Hg(II) ion
photoreduction decreases by increasing amount of Cd(II) ion because of
competition in adsorption. Increasing pH 1 to 4 in the presence of Pb(II) ion can
improve Hg(II) ion photoreduction, meanwhile the addition of Cd(II) ion causes
the decrease in the Hg(II) ion photoreduction. When the pH was further increased
from 4 to 9, the addition of both metal ions, causes the decrease of Hg(II) ion
photoreduction. The presence of both metal ions give no effect on Hg(II) ion
photoreduction for solution with pH higher than 9. The crystallinity of TiO2
decreased after it is used as photocatalyst in Hg(II) ion photoreduction in the
presence of Pb(II) or Cd(II) ions. |
| first_indexed | 2024-03-13T22:38:02Z |
| format | Thesis |
| id | oai:generic.eprints.org:99073 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T22:38:02Z |
| publishDate | 2012 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:990732016-03-04T08:45:58Z https://repository.ugm.ac.id/99073/ PENGARUH ION Pb(II) DAN ION Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG TERKATALISIS TiO2 , CORY NOVI , Prof.Dr. Endang Tri Wahyuni, M.S, ETD The influences of Pb(II) and Cd(II) ions with variation of concentration and pH on the photoreduction of Hg(II) ion photocatalyzed by TiO2 have been studied. The photoreduction process was carried out by irradiating a mixture of Hg(II) ion solution and TiO2 photocatalyst powder with or without Pb(II) and Cd(II) ions in a closed reactor equipped with UV lamp and under continous stirring. The effectiveness of the photoreduced Hg(II) ion in the solution was calculated by substracting the initial Hg(II) concentration by the unreduced concentration after the photoreduction process. The unreduced Hg(II) ion concentration was determined by Cold Vapor Atomic Absorption Spectrophotometric method (CV-AAS). The results of the research showed the effectiveness of Hg(II) ion photoreduction catalyzed by TiO2 improves with the increasing Pb(II) ion because of sinergy effect in the solution. On the other hand, the effectiveness of Hg(II) ion photoreduction decreases by increasing amount of Cd(II) ion because of competition in adsorption. Increasing pH 1 to 4 in the presence of Pb(II) ion can improve Hg(II) ion photoreduction, meanwhile the addition of Cd(II) ion causes the decrease in the Hg(II) ion photoreduction. When the pH was further increased from 4 to 9, the addition of both metal ions, causes the decrease of Hg(II) ion photoreduction. The presence of both metal ions give no effect on Hg(II) ion photoreduction for solution with pH higher than 9. The crystallinity of TiO2 decreased after it is used as photocatalyst in Hg(II) ion photoreduction in the presence of Pb(II) or Cd(II) ions. [Yogyakarta] : Universitas Gadjah Mada 2012 Thesis NonPeerReviewed , CORY NOVI and , Prof.Dr. Endang Tri Wahyuni, M.S, (2012) PENGARUH ION Pb(II) DAN ION Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG TERKATALISIS TiO2. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=55226 |
| spellingShingle | ETD , CORY NOVI , Prof.Dr. Endang Tri Wahyuni, M.S, PENGARUH ION Pb(II) DAN ION Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG TERKATALISIS TiO2 |
| title | PENGARUH ION Pb(II) DAN ION
Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG
TERKATALISIS TiO2 |
| title_full | PENGARUH ION Pb(II) DAN ION
Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG
TERKATALISIS TiO2 |
| title_fullStr | PENGARUH ION Pb(II) DAN ION
Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG
TERKATALISIS TiO2 |
| title_full_unstemmed | PENGARUH ION Pb(II) DAN ION
Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG
TERKATALISIS TiO2 |
| title_short | PENGARUH ION Pb(II) DAN ION
Cd(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Hg(II) YANG
TERKATALISIS TiO2 |
| title_sort | pengaruh ion pb ii dan ion cd ii terhadap efektivitas fotoreduksi ion hg ii yang terkatalisis tio2 |
| topic | ETD |
| work_keys_str_mv | AT corynovi pengaruhionpbiidanioncdiiterhadapefektivitasfotoreduksiionhgiiyangterkatalisistio2 AT profdrendangtriwahyunims pengaruhionpbiidanioncdiiterhadapefektivitasfotoreduksiionhgiiyangterkatalisistio2 |