Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation
A NiO/CdO nanocomposites was fabricated using precipitation deposition method. The as-prepared photocatalyst was generally characterized by various spectral techniques like XRD, SEM, EDAX, UV-DRS, FT-IR, TEM and BET spectral techniques. The synthesized nanocomposite of CdO/NiO were used in the remov...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2021-01-01
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| Series: | Environmental Chemistry and Ecotoxicology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590182621000059 |
| _version_ | 1818932557857685504 |
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| author | V. Ramasamy Raja K. Muthupandi L. Nithya |
| author_facet | V. Ramasamy Raja K. Muthupandi L. Nithya |
| author_sort | V. Ramasamy Raja |
| collection | DOAJ |
| description | A NiO/CdO nanocomposites was fabricated using precipitation deposition method. The as-prepared photocatalyst was generally characterized by various spectral techniques like XRD, SEM, EDAX, UV-DRS, FT-IR, TEM and BET spectral techniques. The synthesized nanocomposite of CdO/NiO were used in the removal of Rose Bengal (RB) as a model organic pollutant under the irradiation of visible light. The XRD pattern of the composite resulted in the cubic CdO and NiO diffraction peaks. EDX spectrum confirms the presence of the elements Cd, Ni and O in the composite. The optical response for the composite showed the presence of separate adsorption signature for CdO and NiO in the visible region at about 510 nm and 380 nm respectively. Among the as-prepared nanocomposites the one of 5% CdO/NiO displays the best photocatalytic activity of the degradation. Various parameters like photocatalyst stability, Catalyst dosage, pH and initial dye concentration were investigated. The investigations of the adsorption kinetics and isotherm shows the adsorption process with pseudo-first- order kinetics by Langmuir adsorption isotherm. The synthesized catalyst has the capacity for the enhancement thereby opening up a new opportunities in various areas in photocatalysis. |
| first_indexed | 2024-12-20T04:34:23Z |
| format | Article |
| id | doaj.art-69716120cadc4e94b5fdcead949289d2 |
| institution | Directory Open Access Journal |
| issn | 2590-1826 |
| language | English |
| last_indexed | 2024-12-20T04:34:23Z |
| publishDate | 2021-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Environmental Chemistry and Ecotoxicology |
| spelling | doaj.art-69716120cadc4e94b5fdcead949289d22022-12-21T19:53:18ZengKeAi Communications Co., Ltd.Environmental Chemistry and Ecotoxicology2590-18262021-01-0137684Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiationV. Ramasamy Raja0K. Muthupandi1L. Nithya2Department of Chemistry, Mannar Thirumalai Naicker College, Madurai 625 004, TamilNadu, India; Corresponding author.Department of Chemistry, Mannar Thirumalai Naicker College, Madurai 625 004, TamilNadu, IndiaEdustar Model School, Melur 625 106, TamilNadu, IndiaA NiO/CdO nanocomposites was fabricated using precipitation deposition method. The as-prepared photocatalyst was generally characterized by various spectral techniques like XRD, SEM, EDAX, UV-DRS, FT-IR, TEM and BET spectral techniques. The synthesized nanocomposite of CdO/NiO were used in the removal of Rose Bengal (RB) as a model organic pollutant under the irradiation of visible light. The XRD pattern of the composite resulted in the cubic CdO and NiO diffraction peaks. EDX spectrum confirms the presence of the elements Cd, Ni and O in the composite. The optical response for the composite showed the presence of separate adsorption signature for CdO and NiO in the visible region at about 510 nm and 380 nm respectively. Among the as-prepared nanocomposites the one of 5% CdO/NiO displays the best photocatalytic activity of the degradation. Various parameters like photocatalyst stability, Catalyst dosage, pH and initial dye concentration were investigated. The investigations of the adsorption kinetics and isotherm shows the adsorption process with pseudo-first- order kinetics by Langmuir adsorption isotherm. The synthesized catalyst has the capacity for the enhancement thereby opening up a new opportunities in various areas in photocatalysis.http://www.sciencedirect.com/science/article/pii/S2590182621000059CdO-NiONanocompositesRose bengalPhotodegradation and visible light |
| spellingShingle | V. Ramasamy Raja K. Muthupandi L. Nithya Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation Environmental Chemistry and Ecotoxicology CdO-NiO Nanocomposites Rose bengal Photodegradation and visible light |
| title | Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation |
| title_full | Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation |
| title_fullStr | Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation |
| title_full_unstemmed | Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation |
| title_short | Facile synthesis of heterogeneous CdO-NiO nanocomposite with efficient photocatalytic activity under visible light irradiation |
| title_sort | facile synthesis of heterogeneous cdo nio nanocomposite with efficient photocatalytic activity under visible light irradiation |
| topic | CdO-NiO Nanocomposites Rose bengal Photodegradation and visible light |
| url | http://www.sciencedirect.com/science/article/pii/S2590182621000059 |
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