PENGARUH ION Cu(II) DAN ION Ni(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI) TERKATALISIS TiO2
Influences of Cu(II) and Ni(II) ions with variation of concentration on the photoreduction of Cr(VI) ion photocatalyzed by TiO 2 have been studied. The photoreduction process was carried out by irradiating a mixture of Cr(VI) ion solution and TiO 2 photocatalyst...
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| Format: | Thesis |
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[Yogyakarta] : Universitas Gadjah Mada
2014
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| _version_ | 1797034505610985472 |
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| author | , Eni Kartika Sari , Prof. Dr. Endang Tri Wahyuni, M.S. |
| author_facet | , Eni Kartika Sari , Prof. Dr. Endang Tri Wahyuni, M.S. |
| author_sort | , Eni Kartika Sari |
| collection | UGM |
| description | Influences of Cu(II) and Ni(II) ions with variation of concentration on the
photoreduction of Cr(VI) ion photocatalyzed by TiO
2 have been studied. The
photoreduction process was carried out by irradiating a mixture of Cr(VI) ion
solution and TiO
2 photocatalyst powder in the presence and the absence of either
Cu(II) or Ni(II) ion in a closed reactor equipped with UV lamp and under
continous stirring. Conditions of the photoreduction were 50 mL of Cr(VI) ion
0,05 mmol/L with 30 mg of TiO2 for 24 hours of the reaction time with varied
concentration of Cu(II) and Ni(II). The reduced Cr(VI) was calculated based on
the difference between the initial and final concentration of Cr(VI). The remaining
Cr(VI) was analyzed by using UV/Vis spectrophotometer.
The results showed that the photoreduction of Cr(VI) reduced by the
increasing of Cu(II) concentration due to competition in photoreduction and
adsorption. Meanwhile the presence of Ni(II) ion did not influence the
photoreduction of Cr(VI) ion but it reduced the adsorption. Irradiation in the
presence of TiO
2 toward electroplating waste which containing Cr(VI), Cu(II) and
Ni(II) ions reduced the concentration of the metals. The increasing of the
reduction of metals due to the increasing of TiO2 mass until 30 mg for Cr(VI) ion
and 15 mg for Cu(II) ion. With addition of photocatalyst mass lead to decrease the
reduction. The crystallinity of TiO2 decreased after it is used as photocatalyst in
photoreduction of Cr(VI) ion in the presence of Cu(II) or Ni(II) ions. |
| first_indexed | 2024-03-13T23:12:46Z |
| format | Thesis |
| id | oai:generic.eprints.org:126106 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T23:12:46Z |
| publishDate | 2014 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:1261062016-03-04T07:55:48Z https://repository.ugm.ac.id/126106/ PENGARUH ION Cu(II) DAN ION Ni(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI) TERKATALISIS TiO2 , Eni Kartika Sari , Prof. Dr. Endang Tri Wahyuni, M.S. ETD Influences of Cu(II) and Ni(II) ions with variation of concentration on the photoreduction of Cr(VI) ion photocatalyzed by TiO 2 have been studied. The photoreduction process was carried out by irradiating a mixture of Cr(VI) ion solution and TiO 2 photocatalyst powder in the presence and the absence of either Cu(II) or Ni(II) ion in a closed reactor equipped with UV lamp and under continous stirring. Conditions of the photoreduction were 50 mL of Cr(VI) ion 0,05 mmol/L with 30 mg of TiO2 for 24 hours of the reaction time with varied concentration of Cu(II) and Ni(II). The reduced Cr(VI) was calculated based on the difference between the initial and final concentration of Cr(VI). The remaining Cr(VI) was analyzed by using UV/Vis spectrophotometer. The results showed that the photoreduction of Cr(VI) reduced by the increasing of Cu(II) concentration due to competition in photoreduction and adsorption. Meanwhile the presence of Ni(II) ion did not influence the photoreduction of Cr(VI) ion but it reduced the adsorption. Irradiation in the presence of TiO 2 toward electroplating waste which containing Cr(VI), Cu(II) and Ni(II) ions reduced the concentration of the metals. The increasing of the reduction of metals due to the increasing of TiO2 mass until 30 mg for Cr(VI) ion and 15 mg for Cu(II) ion. With addition of photocatalyst mass lead to decrease the reduction. The crystallinity of TiO2 decreased after it is used as photocatalyst in photoreduction of Cr(VI) ion in the presence of Cu(II) or Ni(II) ions. [Yogyakarta] : Universitas Gadjah Mada 2014 Thesis NonPeerReviewed , Eni Kartika Sari and , Prof. Dr. Endang Tri Wahyuni, M.S. (2014) PENGARUH ION Cu(II) DAN ION Ni(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI) TERKATALISIS TiO2. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=66300 |
| spellingShingle | ETD , Eni Kartika Sari , Prof. Dr. Endang Tri Wahyuni, M.S. PENGARUH ION Cu(II) DAN ION Ni(II) TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI) TERKATALISIS TiO2 |
| title | PENGARUH ION Cu(II) DAN ION Ni(II)
TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI)
TERKATALISIS TiO2 |
| title_full | PENGARUH ION Cu(II) DAN ION Ni(II)
TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI)
TERKATALISIS TiO2 |
| title_fullStr | PENGARUH ION Cu(II) DAN ION Ni(II)
TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI)
TERKATALISIS TiO2 |
| title_full_unstemmed | PENGARUH ION Cu(II) DAN ION Ni(II)
TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI)
TERKATALISIS TiO2 |
| title_short | PENGARUH ION Cu(II) DAN ION Ni(II)
TERHADAP EFEKTIVITAS FOTOREDUKSI ION Cr(VI)
TERKATALISIS TiO2 |
| title_sort | pengaruh ion cu ii dan ion ni ii terhadap efektivitas fotoreduksi ion cr vi terkatalisis tio2 |
| topic | ETD |
| work_keys_str_mv | AT enikartikasari pengaruhioncuiidanionniiiterhadapefektivitasfotoreduksiioncrviterkatalisistio2 AT profdrendangtriwahyunims pengaruhioncuiidanionniiiterhadapefektivitasfotoreduksiioncrviterkatalisistio2 |