Photoluminescence enhancement via microwave irradiation of carbon quantum dots derived from solvothermal synthesis of l-arginineElectronic supplementary information (ESI) available. See DOI: 10.1039/c8nj04788j
Photoluminescence enhancement of carbon quantum dots was achieved via solvothermal synthesis followed by microwave irradiation. Nitrogen and phosphorous doped carbon quantum dots were prepared by solvothermal heating of l -arginine with phosphoric acid for 12 hours followed by microwave irradiation...
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| creator | Omer, Khalid M Hama Aziz, Kosar H Salih, Yousif M Tofiq, Diary I Hassan, Aso Q |
| description | Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation. Nitrogen and phosphorous doped carbon quantum dots were prepared by solvothermal heating of
l
-arginine with phosphoric acid for 12 hours followed by microwave irradiation for 3 minutes. The photoluminescence enhancement was nearly two fold after microwave irradiation. The morphology, structure, and surface properties were the same for the solvothermal (CQDs-S) as well as after microwave (CQDs-M) irradiation. Thus, the enhancement is attributed to the decrease of surface defects within CQDs, which led to a decrease in the non-radiative transitions. The CQDs were quenched selectively by Fe
3+
ions. The quenching led to the fabrication of the fluorescence probe for ferric ion determination. The CQDs-M had a low detection limit of 4.0 nM, while CQDs-S had a limit of 50 nM. This study gives a tool for enhancing photoluminescence quantum yields, which is highly desired for biosensing and bioimaging applications.
Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation. |
| doi_str_mv | 10.1039/c8nj04788j |
| format | Article |
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via
solvothermal synthesis followed by microwave irradiation. Nitrogen and phosphorous doped carbon quantum dots were prepared by solvothermal heating of
l
-arginine with phosphoric acid for 12 hours followed by microwave irradiation for 3 minutes. The photoluminescence enhancement was nearly two fold after microwave irradiation. The morphology, structure, and surface properties were the same for the solvothermal (CQDs-S) as well as after microwave (CQDs-M) irradiation. Thus, the enhancement is attributed to the decrease of surface defects within CQDs, which led to a decrease in the non-radiative transitions. The CQDs were quenched selectively by Fe
3+
ions. The quenching led to the fabrication of the fluorescence probe for ferric ion determination. The CQDs-M had a low detection limit of 4.0 nM, while CQDs-S had a limit of 50 nM. This study gives a tool for enhancing photoluminescence quantum yields, which is highly desired for biosensing and bioimaging applications.
Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation.</description><identifier>ISSN: 1144-0546</identifier><identifier>EISSN: 1369-9261</identifier><identifier>DOI: 10.1039/c8nj04788j</identifier><language>eng</language><creationdate>2019-01</creationdate><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930</link.rule.ids></links><search><creatorcontrib>Omer, Khalid M</creatorcontrib><creatorcontrib>Hama Aziz, Kosar H</creatorcontrib><creatorcontrib>Salih, Yousif M</creatorcontrib><creatorcontrib>Tofiq, Diary I</creatorcontrib><creatorcontrib>Hassan, Aso Q</creatorcontrib><title>Photoluminescence enhancement via microwave irradiation of carbon quantum dots derived from solvothermal synthesis of l-arginineElectronic supplementary information (ESI) available. See DOI: 10.1039/c8nj04788j</title><description>Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation. Nitrogen and phosphorous doped carbon quantum dots were prepared by solvothermal heating of
l
-arginine with phosphoric acid for 12 hours followed by microwave irradiation for 3 minutes. The photoluminescence enhancement was nearly two fold after microwave irradiation. The morphology, structure, and surface properties were the same for the solvothermal (CQDs-S) as well as after microwave (CQDs-M) irradiation. Thus, the enhancement is attributed to the decrease of surface defects within CQDs, which led to a decrease in the non-radiative transitions. The CQDs were quenched selectively by Fe
3+
ions. The quenching led to the fabrication of the fluorescence probe for ferric ion determination. The CQDs-M had a low detection limit of 4.0 nM, while CQDs-S had a limit of 50 nM. This study gives a tool for enhancing photoluminescence quantum yields, which is highly desired for biosensing and bioimaging applications.
Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation.</description><issn>1144-0546</issn><issn>1369-9261</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFj09Lw0AQxRdRsFYv3oXxpofUrIlp61Ur9qRQ72W6mdgp-yfubiL9mH4j1yJ4EPT0fjDz3uMJcSrzkcyL6ZWa2E1ejieTzZ4YyKKaZtPrSu4nlmWZ5TdldSiOQtjkuZTjSg7Ex_PaRac7w5aCIqsIyK4xqSEboWcEw8q7d-wJ2HusGSM7C64BhX6V6K1DGzsDtYsBavLcUw2NdwaC072La_IGNYStTRg4fFl1hv6VbSqdaVLRO8sKQte2eteLfgtsG5eMu7KL2WJ-Cdgja1xpGsGCCO6f5rfwe_ixOGhQBzr51qE4e5i93D1mPqhl69mk8OXPezEU53_dl23dFP9lfAKQJXt7</recordid><startdate>20190102</startdate><enddate>20190102</enddate><creator>Omer, Khalid M</creator><creator>Hama Aziz, Kosar H</creator><creator>Salih, Yousif M</creator><creator>Tofiq, Diary I</creator><creator>Hassan, Aso Q</creator><scope/></search><sort><creationdate>20190102</creationdate><title>Photoluminescence enhancement via microwave irradiation of carbon quantum dots derived from solvothermal synthesis of l-arginineElectronic supplementary information (ESI) available. See DOI: 10.1039/c8nj04788j</title><author>Omer, Khalid M ; Hama Aziz, Kosar H ; Salih, Yousif M ; Tofiq, Diary I ; Hassan, Aso Q</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_c8nj04788j3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Omer, Khalid M</creatorcontrib><creatorcontrib>Hama Aziz, Kosar H</creatorcontrib><creatorcontrib>Salih, Yousif M</creatorcontrib><creatorcontrib>Tofiq, Diary I</creatorcontrib><creatorcontrib>Hassan, Aso Q</creatorcontrib></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Omer, Khalid M</au><au>Hama Aziz, Kosar H</au><au>Salih, Yousif M</au><au>Tofiq, Diary I</au><au>Hassan, Aso Q</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photoluminescence enhancement via microwave irradiation of carbon quantum dots derived from solvothermal synthesis of l-arginineElectronic supplementary information (ESI) available. See DOI: 10.1039/c8nj04788j</atitle><date>2019-01-02</date><risdate>2019</risdate><volume>43</volume><issue>2</issue><spage>689</spage><epage>695</epage><pages>689-695</pages><issn>1144-0546</issn><eissn>1369-9261</eissn><abstract>Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation. Nitrogen and phosphorous doped carbon quantum dots were prepared by solvothermal heating of
l
-arginine with phosphoric acid for 12 hours followed by microwave irradiation for 3 minutes. The photoluminescence enhancement was nearly two fold after microwave irradiation. The morphology, structure, and surface properties were the same for the solvothermal (CQDs-S) as well as after microwave (CQDs-M) irradiation. Thus, the enhancement is attributed to the decrease of surface defects within CQDs, which led to a decrease in the non-radiative transitions. The CQDs were quenched selectively by Fe
3+
ions. The quenching led to the fabrication of the fluorescence probe for ferric ion determination. The CQDs-M had a low detection limit of 4.0 nM, while CQDs-S had a limit of 50 nM. This study gives a tool for enhancing photoluminescence quantum yields, which is highly desired for biosensing and bioimaging applications.
Photoluminescence enhancement of carbon quantum dots was achieved
via
solvothermal synthesis followed by microwave irradiation.</abstract><doi>10.1039/c8nj04788j</doi><tpages>7</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Photoluminescence enhancement via microwave irradiation of carbon quantum dots derived from solvothermal synthesis of l-arginineElectronic supplementary information (ESI) available. See DOI: 10.1039/c8nj04788j |
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