Publication:
Near-Infrared (NIR) Silver Sulfide (Ag2S) semiconductor photocatalyst film for degradation of methylene blue solution
Near-Infrared (NIR) Silver Sulfide (Ag2S) semiconductor photocatalyst film for degradation of methylene blue solution
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtualsource.department | 63358293-3574-4c52-b33f-74f5f978fe2b | |
| cris.virtualsource.department | 1f2376c8-f05e-473e-adbc-c280ad4dd143 | |
| cris.virtualsource.department | b7d3dcfb-b0f2-49c6-b91a-7c767f33e0fe | |
| cris.virtualsource.department | 1fb76e68-0c75-4529-ac9f-cf51941493f8 | |
| dc.contributor.author | Zahrah Ramadlan Mubarokah | |
| dc.contributor.author | Norsuria Mahmed | |
| dc.contributor.author | Mohd Natashah Norizan | |
| dc.contributor.author | Ili Salwani Mohamad | |
| dc.contributor.author | Mohd. Mustafa Al Bakri Abdullah | |
| dc.contributor.author | Katarzyna Błoch | |
| dc.contributor.author | Marcin Nabiałek | |
| dc.contributor.author | Madalina Simona Baltatu | |
| dc.contributor.author | Andrei Victor Sandu | |
| dc.contributor.author | Petrica Vizureanu | |
| dc.date.accessioned | 2024-10-05T09:59:08Z | |
| dc.date.available | 2024-10-05T09:59:08Z | |
| dc.date.issued | 2023 | |
| dc.description.abstract | A silver sulfide (Ag2S) semiconductor photocatalyst film has been successfully synthesized using a solution casting method. To produce the photocatalyst films, two types of Ag2S powder were used: a commercialized and synthesized powder. For the commercialized powder (CF/comAg2S), the Ag2S underwent a rarefaction process to reduce its crystallite size from 52 nm to 10 nm, followed by incorporation into microcrystalline cellulose using a solution casting method under the presence of an alkaline/urea solution. A similar process was applied to the synthesized Ag2S powder (CF/syntAg2S), resulting from the co-precipitation process of silver nitrate (AgNO3) and thiourea. The prepared photocatalyst films and their photocatalytic efficiency were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and UV-visible spectroscopy (UV-Vis). The results showed that the incorporation of the Ag2S powder into the cellulose films could reduce the peak intensity of the oxygen-containing functional group, which indicated the formation of a composite film. The study of the crystal structure confirmed that all of the as-prepared samples featured a monoclinic acanthite Ag2S structure with space group P21/C. It was found that the degradation rate of the methylene blue dye reached 100% within 2 h under sunlight exposure when using CF/comAg2S and 98.6% for the CF/syntAg2S photocatalyst film, and only 48.1% for the bare Ag2S powder. For the non-exposure sunlight samples, the degradation rate of only 33–35% indicated the importance of the semiconductor near-infrared (NIR) Ag2S photocatalyst used. | |
| dc.identifier.doi | 10.3390/ma16010437 | |
| dc.identifier.uri | https://www.mdpi.com/1996-1944/16/1/437/pdf | |
| dc.identifier.uri | https://www.mdpi.com/1996-1944/16/1/437/html | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14170/9346 | |
| dc.language.iso | en | |
| dc.relation.ispartof | Materials | |
| dc.relation.issn | 1996-1944 | |
| dc.subject | Near-infrared irradiation | |
| dc.subject | Silver sulfide | |
| dc.subject | Cellulose film | |
| dc.subject | Photocatalysis | |
| dc.subject | Methylene blue | |
| dc.title | Near-Infrared (NIR) Silver Sulfide (Ag2S) semiconductor photocatalyst film for degradation of methylene blue solution | |
| dc.type | journal-article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 21 | |
| oaire.citation.issue | 1 | |
| oaire.citation.startPage | 1 | |
| oaire.citation.volume | 16 | |
| oairecerif.author.affiliation | #PLACEHOLDER_PARENT_METADATA_VALUE# | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Częstochowa University of Technology | |
| oairecerif.author.affiliation | Częstochowa University of Technology | |
| oairecerif.author.affiliation | Gheorghe Asachi Technical University of Iaşi | |
| oairecerif.author.affiliation | Gheorghe Asachi Technical University of Iaşi | |
| oairecerif.author.affiliation | Gheorghe Asachi Technical University of Iaşi |
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