Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.]
Degradation of azo dyes by using advanced oxidation processes (AOPs) was conducted. In this approach, different AOPs, which are Fenton process and titanium dioxide (TiO 2 ) catalyst, were examined and compared for the degradation of an azo dye (i.e., Congo red dye). The sample was tested under UV li...
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| Format: | Article |
| Language: | English |
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Universiti Teknologi MARA, Negeri Sembilan
2018
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| Online Access: | https://ir.uitm.edu.my/id/eprint/30122/ |
| _version_ | 1848807416983977984 |
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| author | Nasron, Alya Nadhira Azman, Ninna Sakina Mohd Rashid, Nor Syaidatul Syafiqah Said, Nur Rahimah |
| author_facet | Nasron, Alya Nadhira Azman, Ninna Sakina Mohd Rashid, Nor Syaidatul Syafiqah Said, Nur Rahimah |
| author_sort | Nasron, Alya Nadhira |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | Degradation of azo dyes by using advanced oxidation processes (AOPs) was conducted. In this approach, different AOPs, which are Fenton process and titanium dioxide (TiO 2 ) catalyst, were examined and compared for the degradation of an azo dye (i.e., Congo red dye). The sample was tested under UV light and the experiment was conducted for 90 min with 15 min interval. The degradation
rate of dye was determined using UV-Vis spectrophotometry. The effect of several parameters on the
degradation process such as the concentration of metal ions (Fe 2+ , Cu 2+ , and Mn 2+ ) as the catalyst in
Fenton process, the concentration of hydrogen peroxide (H 2 O 2 ), the mass of TiO 2 , and pH value of the dye solution were investigated. The initial Congo red concentration used for both techniques was 5 ppm. The results showed that the percentage degradation followed the sequence of H 2 O 2 /Fe 2+ /UV, H 2 O 2 /Cu 2+ /UV, H 2 O 2 /Mn 2+ /UV, and TiO 2 /UV. The best operating conditions for H 2 O 2 /Fe 2+ /UV were pH 3, 0.2 M concentration of H 2 O 2 , and 0.02 M concentration of metal ion in 15 min, which achieved 99.92% degradation of dye. The Fourier transform infrared (FTIR) spectrum showed the absence of azo bond (N=N) peak after degradation process, which indicates the successful cleavage of azo bond in the chemical structure of Congo red. |
| first_indexed | 2025-11-14T22:42:29Z |
| format | Article |
| id | uitm-30122 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T22:42:29Z |
| publishDate | 2018 |
| publisher | Universiti Teknologi MARA, Negeri Sembilan |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-301222020-04-23T14:07:01Z https://ir.uitm.edu.my/id/eprint/30122/ Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] joa Nasron, Alya Nadhira Azman, Ninna Sakina Mohd Rashid, Nor Syaidatul Syafiqah Said, Nur Rahimah Organic chemistry Oxidation Dyes Degradation of azo dyes by using advanced oxidation processes (AOPs) was conducted. In this approach, different AOPs, which are Fenton process and titanium dioxide (TiO 2 ) catalyst, were examined and compared for the degradation of an azo dye (i.e., Congo red dye). The sample was tested under UV light and the experiment was conducted for 90 min with 15 min interval. The degradation rate of dye was determined using UV-Vis spectrophotometry. The effect of several parameters on the degradation process such as the concentration of metal ions (Fe 2+ , Cu 2+ , and Mn 2+ ) as the catalyst in Fenton process, the concentration of hydrogen peroxide (H 2 O 2 ), the mass of TiO 2 , and pH value of the dye solution were investigated. The initial Congo red concentration used for both techniques was 5 ppm. The results showed that the percentage degradation followed the sequence of H 2 O 2 /Fe 2+ /UV, H 2 O 2 /Cu 2+ /UV, H 2 O 2 /Mn 2+ /UV, and TiO 2 /UV. The best operating conditions for H 2 O 2 /Fe 2+ /UV were pH 3, 0.2 M concentration of H 2 O 2 , and 0.02 M concentration of metal ion in 15 min, which achieved 99.92% degradation of dye. The Fourier transform infrared (FTIR) spectrum showed the absence of azo bond (N=N) peak after degradation process, which indicates the successful cleavage of azo bond in the chemical structure of Congo red. Universiti Teknologi MARA, Negeri Sembilan 2018 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/30122/1/30122.pdf Nasron, Alya Nadhira and Azman, Ninna Sakina and Mohd Rashid, Nor Syaidatul Syafiqah and Said, Nur Rahimah (2018) Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.]. (2018) Journal of Academia <https://ir.uitm.edu.my/view/publication/Journal_of_Academia.html>, 6 (2). pp. 1-11. ISSN 2289-6368 https://nsembilan.uitm.edu.my/joacns/ |
| spellingShingle | Organic chemistry Oxidation Dyes Nasron, Alya Nadhira Azman, Ninna Sakina Mohd Rashid, Nor Syaidatul Syafiqah Said, Nur Rahimah Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] |
| title | Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] |
| title_full | Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] |
| title_fullStr | Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] |
| title_full_unstemmed | Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] |
| title_short | Degradation of congo red dye in aqueous solution by using advanced oxidation processes / Alya Nadhira Nasron... [et al.] |
| title_sort | degradation of congo red dye in aqueous solution by using advanced oxidation processes / alya nadhira nasron... [et al.] |
| topic | Organic chemistry Oxidation Dyes |
| url | https://ir.uitm.edu.my/id/eprint/30122/ https://ir.uitm.edu.my/id/eprint/30122/ |