A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation
A novel polyaniline (PANI) coupled CuBi2O4 photocatalyst was successfully synthesized via in situ polymerization of aniline with pre-synthesized CuBi2O4 composites. The structure and morphology of the synthesized CuBi2O4/PANI composite photocatalyst were characterized by X-ray diffraction (XRD) and...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022014980 |
| _version_ | 1811188142715174912 |
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| author | Nafees Ahmad Jerry Anae Mohammad Zain Khan Suhail Sabir Pablo Campo Frederic Coulon |
| author_facet | Nafees Ahmad Jerry Anae Mohammad Zain Khan Suhail Sabir Pablo Campo Frederic Coulon |
| author_sort | Nafees Ahmad |
| collection | DOAJ |
| description | A novel polyaniline (PANI) coupled CuBi2O4 photocatalyst was successfully synthesized via in situ polymerization of aniline with pre-synthesized CuBi2O4 composites. The structure and morphology of the synthesized CuBi2O4/PANI composite photocatalyst were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) and the photocatalytic performance were evaluated through degradation process of ammonia in water under visible light irradiation. The resultant CuBi2O4/PANI composite showed exceptional stability as its structure and morphology persisted even after being immersed in water for 2 days. The composite photocatalyst exhibited improved charge transport properties due to the electrical conductivity of the PANI protective layer, leading to enhanced photoelectrochemical activity in water and removal of ammonia. PANI with CuBi2O4 (10% wt) heterostructure was applied for photodegradation of ammonia and exhibited a 96% ammonia removal efficiency (30 mg/l with 0.1 g photocatalyst and 180 min), as compared to PANI (78%) and CuBi2O4 (70%). The degradation was attributed to the efficient charge transfer (e− and h+) and formation of reactive oxygen species upon simulated sunlight exposure. The present work suggests that the CuBi2O4/PANI photocatalyst can be synthesized in a simple process and provides an excellent adsorption capacity, high photocatalytic activity, long term stability, and reusability making it a promising alternative for ammonia removal from wastewater. |
| first_indexed | 2024-04-11T14:15:45Z |
| format | Article |
| id | doaj.art-50ebee4edddf427f958655cf4a221817 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-11T14:15:45Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-50ebee4edddf427f958655cf4a2218172022-12-22T04:19:33ZengElsevierHeliyon2405-84402022-08-0188e10210A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradationNafees Ahmad0Jerry Anae1Mohammad Zain Khan2Suhail Sabir3Pablo Campo4Frederic Coulon5School of Water, Energy and Environment, Cranfield University, Cranfield, MK 43 0AL, UK; Department of Chemistry, Integral University, Lucknow, India, 226026School of Water, Energy and Environment, Cranfield University, Cranfield, MK 43 0AL, UKEnvironmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India, 202002Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India, 202002School of Water, Energy and Environment, Cranfield University, Cranfield, MK 43 0AL, UKSchool of Water, Energy and Environment, Cranfield University, Cranfield, MK 43 0AL, UK; Corresponding author.A novel polyaniline (PANI) coupled CuBi2O4 photocatalyst was successfully synthesized via in situ polymerization of aniline with pre-synthesized CuBi2O4 composites. The structure and morphology of the synthesized CuBi2O4/PANI composite photocatalyst were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) and the photocatalytic performance were evaluated through degradation process of ammonia in water under visible light irradiation. The resultant CuBi2O4/PANI composite showed exceptional stability as its structure and morphology persisted even after being immersed in water for 2 days. The composite photocatalyst exhibited improved charge transport properties due to the electrical conductivity of the PANI protective layer, leading to enhanced photoelectrochemical activity in water and removal of ammonia. PANI with CuBi2O4 (10% wt) heterostructure was applied for photodegradation of ammonia and exhibited a 96% ammonia removal efficiency (30 mg/l with 0.1 g photocatalyst and 180 min), as compared to PANI (78%) and CuBi2O4 (70%). The degradation was attributed to the efficient charge transfer (e− and h+) and formation of reactive oxygen species upon simulated sunlight exposure. The present work suggests that the CuBi2O4/PANI photocatalyst can be synthesized in a simple process and provides an excellent adsorption capacity, high photocatalytic activity, long term stability, and reusability making it a promising alternative for ammonia removal from wastewater.http://www.sciencedirect.com/science/article/pii/S2405844022014980PhotocatalystIn-situ polymerizationKineticsScavengersElectron-hole pairs |
| spellingShingle | Nafees Ahmad Jerry Anae Mohammad Zain Khan Suhail Sabir Pablo Campo Frederic Coulon A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation Heliyon Photocatalyst In-situ polymerization Kinetics Scavengers Electron-hole pairs |
| title | A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation |
| title_full | A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation |
| title_fullStr | A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation |
| title_full_unstemmed | A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation |
| title_short | A novel CuBi2O4/polyaniline composite as an efficient photocatalyst for ammonia degradation |
| title_sort | novel cubi2o4 polyaniline composite as an efficient photocatalyst for ammonia degradation |
| topic | Photocatalyst In-situ polymerization Kinetics Scavengers Electron-hole pairs |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022014980 |
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