Please use this identifier to cite or link to this item:
http://hdl.handle.net/10603/302859
Title: | Silica Coated Metal CdS Hybrid Nanocomposites for Photocatalytic Reactions |
Researcher: | Gupta, Nidhi |
Guide(s): | Pal, Bonamali |
Keywords: | CdS nanoparticles Core-shell structures Silica coated CdS nanocomposites |
University: | Thapar Institute of Engineering and Technology |
Completed Date: | 2013 |
Abstract: | In summary, the present research work involved the preparation and detailed characterization of various shapes of CdS nanostructures such as nanospheres, nanorods of different aspect ratio, spongy flower like CdS nanoparticles, core (CdS)-shell (SiO2) and SiO2 coated movable CdOatCdS morphology by UV-Vis absorption and photoluminescence spectroscopy, XRD, SEM, TEM, BET surface area, LB film and TGA etc. Their relative optical absorption, band position, photoluminescence, and photocatalytic redox properties both under UV and visible light illumination, and the photostability by SiO2 coating were investigated elaborately in correlation to their size, shape, effect of metal loading, impact of laser exposure, crystal structure, crystallinity, band gap energy, surface area etc. Furthermore, CdS morphologies were also stabilized against its photodissolution by SiO2 coating which results in the formation of core-shell structures that improved the photochemical activity and stability of CdS nanoparticles during longer light exposure. Multiple-movable core (CdS)-shell (CdO) structures enclosed in lengthy SiO2 matrix were synthesized by photoetching of CdS core using monochromatic light irradiation from Ar ion laser. Different transition metals (Au, Ag, Cu, Pt, Pd and Rh) were loaded on the synthesized CdS nanostructures for finding the best and effective photocatalytic activity of metal-CdS heterocomposite. newline |
Pagination: | 143p. |
URI: | http://hdl.handle.net/10603/302859 |
Appears in Departments: | School of Chemistry and Biochemistry |
Files in This Item:
File | Description | Size | Format | |
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01_title.pdf | Attached File | 174.11 kB | Adobe PDF | View/Open |
02_certificate.pdf | 295.6 kB | Adobe PDF | View/Open | |
03_dedication.pdf | 88.5 kB | Adobe PDF | View/Open | |
04_candidates declaration.pdf | 284.55 kB | Adobe PDF | View/Open | |
05_acknowledgement.pdf | 373.59 kB | Adobe PDF | View/Open | |
06_list of symbols_abbreviations.pdf | 222.49 kB | Adobe PDF | View/Open | |
07_table of contents.pdf | 313.44 kB | Adobe PDF | View/Open | |
08_chapter 1.pdf | 635.98 kB | Adobe PDF | View/Open | |
09_chapter 2.pdf | 518.65 kB | Adobe PDF | View/Open | |
10_chapter 3.pdf | 918.8 kB | Adobe PDF | View/Open | |
11_chapter 4.pdf | 1.46 MB | Adobe PDF | View/Open | |
12_chapter 5.pdf | 1.09 MB | Adobe PDF | View/Open | |
13_chapter 6.pdf | 1.32 MB | Adobe PDF | View/Open | |
14_chapter 7.pdf | 727.06 kB | Adobe PDF | View/Open | |
15_chapter 7.pdf | 969.99 kB | Adobe PDF | View/Open | |
16_summary_list of publication.pdf | 322.19 kB | Adobe PDF | View/Open | |
80_recommendation.pdf | 196.32 kB | Adobe PDF | View/Open |
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