Document Details
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Document Type |
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Thesis |
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Document Title |
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SYNTHESIS AND CHARACTERIZATION OF MODIFIED TIO2 COMPOSITE FOR PHOTOCATALYSIS OF POLLUTANTS. تحضير وتوصيف متراكب من ثنائي أكسيد التيتانيوم المحسن لتكسير الملوثات بالتحفيز الضوئي . |
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Subject |
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faculty of science |
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Document Language |
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Arabic |
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Abstract |
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Two or more materials, which are semiconductors, can be combined to make a new hybrid. The electron-hole is represented as (e−/h+). The TiO2 (P25) with g-C3N4 and polyaniline can be used to make a composite. Before the exercise, the TiO2 brim is generated from the lamellar structure. During the process, the surface area and adhesion need to be controlled. Therefore, alkali hydrothermal treatment is adopted to enhance the success of the procedure. The e−/h+ pair were successfully separated by incorporation of the technique involving the analysis of PL and UV-visible. According to the outcomes, TiO2, Pani, and g-C3N4 had a resemblance, which made it possible to conclude that g-C3N4/TiO2@Pani nanohybrid was useful in reducing the bandgap. It is arrived at from the information received, indicating that CR degradation was 90%, even after four cycles were conducted consecutively for validation. Therefore, the amount of catalyst used was efficient. Thus, g-C3N4/TiO2@Pani nanohybrid, when used at a proficient level, with reusability, can be associated with the increase in the absorption of visible light. The other part of the study focuses on NiS-RGO-TiO2. The method used is a two-step hydrothermal strategy. It focused on three components, which include titanium dioxide (P25), graphene oxide (RGO) together with nickel sulfide (NiS). During the experiment, unique tools were used to ensure the aim is achieved. Scanning electronic microscopy (SEM together with X-ray photoelectron spectroscopy (XPS), were used to monitor and scan the NiS-RGO-TiO2 under the visible radiation. It is crucial to consider that the level of TCP recorded was at 90%. It was after evaluation under the sunlight for a period that lasted for precisely six hours. In general, the research showed that NiS-RGO-TiO2 ¬ nanocomposite was a success when evaluated under photocatalysis; thus, sunlight, which is a renewable source of energy, can assist in such a situation. |
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Supervisor |
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Prof. Dr. Fathia Alseroury |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1441 AH
2020 AD |
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Co-Supervisor |
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Prof. Dr. Mohamed Abou El- Fetouh Barakat |
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Added Date |
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Monday, January 20, 2020 |
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Researchers
| مها عياد العنزي | Alenazi, Maha Ayyad | Researcher | Master | |
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