Visible Light Enhancement of Biocarbon Quantum-Dot-Decorated TiO 2 for Naphthalene Removal
In this study, carbon-quantum-dot (CQD)-decorated TiO was prepared using an ultrasonic doping method and applied in the photocatalytic degradation of naphthalene under sunlight irradiation. The CQDs were synthesized from a typical macroalgae via diluted sulfuric acid pretreatment and hydrothermal sy...
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| Veröffentlicht in: | Molecules (Basel, Switzerland) Switzerland), 2024-06, Vol.29 (11) |
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| container_title | Molecules (Basel, Switzerland) |
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| creator | Chen, Yunteng Hong, Chunxian Xu, Qiang Zheng, Haihong Wang, Chao Lu, Hongshun Zhang, Shuai Du, Mingming Zeng, Ganning |
| description | In this study, carbon-quantum-dot (CQD)-decorated TiO
was prepared using an ultrasonic doping method and applied in the photocatalytic degradation of naphthalene under sunlight irradiation. The CQDs were synthesized from a typical macroalgae via diluted sulfuric acid pretreatment and hydrothermal synthesis using an optimal design, i.e., 3 wt% and 200 °C, respectively. The CQD/TiO
composite remarkably enhanced the photocatalytic activity. The degradation of naphthalene under a visible light environment indicated that there is a synergistic mechanism between the CQDs and TiO
, in which the generation of reactive oxygen species is significantly triggered; in addition, the N that originated from the macroalgae accelerated the photocatalytic efficiency. Kinetic analysis showed that the photocatalytic behavior of the CQD/TiO
composite followed a pseudo-first-order equation. Consequently, our combined experimental approach not only provides a facile pretreatment process for bio-CQDs synthesis, but also delivers a suitable TiO
photocatalyst for the visible environment along with critical insights into the development of harmful macroalgae resources. |
| doi_str_mv | 10.3390/molecules29112708 |
| format | Article |
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was prepared using an ultrasonic doping method and applied in the photocatalytic degradation of naphthalene under sunlight irradiation. The CQDs were synthesized from a typical macroalgae via diluted sulfuric acid pretreatment and hydrothermal synthesis using an optimal design, i.e., 3 wt% and 200 °C, respectively. The CQD/TiO
composite remarkably enhanced the photocatalytic activity. The degradation of naphthalene under a visible light environment indicated that there is a synergistic mechanism between the CQDs and TiO
, in which the generation of reactive oxygen species is significantly triggered; in addition, the N that originated from the macroalgae accelerated the photocatalytic efficiency. Kinetic analysis showed that the photocatalytic behavior of the CQD/TiO
composite followed a pseudo-first-order equation. Consequently, our combined experimental approach not only provides a facile pretreatment process for bio-CQDs synthesis, but also delivers a suitable TiO
photocatalyst for the visible environment along with critical insights into the development of harmful macroalgae resources.</description><identifier>EISSN: 1420-3049</identifier><identifier>DOI: 10.3390/molecules29112708</identifier><identifier>PMID: 38893581</identifier><language>eng</language><publisher>Switzerland</publisher><ispartof>Molecules (Basel, Switzerland), 2024-06, Vol.29 (11)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-8393-0366</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,861,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38893581$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Yunteng</creatorcontrib><creatorcontrib>Hong, Chunxian</creatorcontrib><creatorcontrib>Xu, Qiang</creatorcontrib><creatorcontrib>Zheng, Haihong</creatorcontrib><creatorcontrib>Wang, Chao</creatorcontrib><creatorcontrib>Lu, Hongshun</creatorcontrib><creatorcontrib>Zhang, Shuai</creatorcontrib><creatorcontrib>Du, Mingming</creatorcontrib><creatorcontrib>Zeng, Ganning</creatorcontrib><title>Visible Light Enhancement of Biocarbon Quantum-Dot-Decorated TiO 2 for Naphthalene Removal</title><title>Molecules (Basel, Switzerland)</title><addtitle>Molecules</addtitle><description>In this study, carbon-quantum-dot (CQD)-decorated TiO
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composite remarkably enhanced the photocatalytic activity. The degradation of naphthalene under a visible light environment indicated that there is a synergistic mechanism between the CQDs and TiO
, in which the generation of reactive oxygen species is significantly triggered; in addition, the N that originated from the macroalgae accelerated the photocatalytic efficiency. Kinetic analysis showed that the photocatalytic behavior of the CQD/TiO
composite followed a pseudo-first-order equation. Consequently, our combined experimental approach not only provides a facile pretreatment process for bio-CQDs synthesis, but also delivers a suitable TiO
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composite remarkably enhanced the photocatalytic activity. The degradation of naphthalene under a visible light environment indicated that there is a synergistic mechanism between the CQDs and TiO
, in which the generation of reactive oxygen species is significantly triggered; in addition, the N that originated from the macroalgae accelerated the photocatalytic efficiency. Kinetic analysis showed that the photocatalytic behavior of the CQD/TiO
composite followed a pseudo-first-order equation. Consequently, our combined experimental approach not only provides a facile pretreatment process for bio-CQDs synthesis, but also delivers a suitable TiO
photocatalyst for the visible environment along with critical insights into the development of harmful macroalgae resources.</abstract><cop>Switzerland</cop><pmid>38893581</pmid><doi>10.3390/molecules29112708</doi><orcidid>https://orcid.org/0000-0001-8393-0366</orcidid></addata></record> |
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| source | DOAJ Directory of Open Access Journals; MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| title | Visible Light Enhancement of Biocarbon Quantum-Dot-Decorated TiO 2 for Naphthalene Removal |
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