Influence of Cocatalysts (Ni, Co, and Cu) and Synthesis Method on the Photocatalytic Activity of Exfoliated Graphitic Carbon Nitride for Hydrogen Production
dc.contributor.author | Rana, Adeem Ghaffar | |
dc.contributor.author | Schwarze, Michael | |
dc.contributor.author | Tasbihi, Minoo | |
dc.contributor.author | Sala, Xavier | |
dc.contributor.author | García-Antón, Jordi | |
dc.contributor.author | Minceva, Mirjana | |
dc.date.accessioned | 2023-01-19T14:27:11Z | |
dc.date.available | 2023-01-19T14:27:11Z | |
dc.date.issued | 2022-11-14 | |
dc.date.updated | 2022-12-07T14:47:25Z | |
dc.description.abstract | Exfoliated graphitic carbon nitride (ex-g-CN) was synthesized and loaded with non-noble metals (Ni, Cu, and Co). The synthesized catalysts were tested for hydrogen production using a 300-W Xe lamp equipped with a 395 nm cutoff filter. A noncommercial double-walled quartz-glass reactor irradiated from the side was used with a 1 g/L catalyst in 20 mL of a 10 vol% triethanolamine aqueous solution. For preliminary screening, the metal-loaded ex-g-CN was synthesized using the incipient wetness impregnation method. The highest hydrogen production was observed on the Ni-loaded ex-g-CN, which was selected to assess the impact of the synthesis method on hydrogen production. Ni-loaded ex-g-CN was synthesized using different synthesis methods: incipient wetness impregnation, colloidal deposition, and precipitation deposition. The catalysts were characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy, nitrogen adsorption using the Brunauer–Emmett–Teller method, and transmission electron microscopy. The Ni-loaded ex-g-CN synthesized using the colloidal method performed best with a hydrogen production rate of 43.6 µmol h−1 g−1. By contrast, the catalysts synthesized using the impregnation and precipitation methods were less active, with 28.2 and 10.1 µmol h−1 g−1, respectively. The hydrogen production performance of the suspended catalyst (440 µmol m−2 g−1) showed to be superior to that of the corresponding immobilized catalyst (236 µmol m−2 g−1). | |
dc.description.sponsorship | DFG, 390540038, EXC 2008: Unifying Systems in Catalysis "UniSysCat" | |
dc.identifier.eissn | 2079-4991 | |
dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/18019 | |
dc.identifier.uri | https://doi.org/10.14279/depositonce-16811 | |
dc.language.iso | en | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject.ddc | 540 Chemie und zugeordnete Wissenschaften | de |
dc.subject.other | graphitic carbon nitride | |
dc.subject.other | water splitting | |
dc.subject.other | hydrogen production | |
dc.subject.other | nickel | |
dc.subject.other | cocatalyst deposition | |
dc.title | Influence of Cocatalysts (Ni, Co, and Cu) and Synthesis Method on the Photocatalytic Activity of Exfoliated Graphitic Carbon Nitride for Hydrogen Production | |
dc.type | Article | |
dc.type.version | publishedVersion | |
dcterms.bibliographicCitation.articlenumber | 4006 | |
dcterms.bibliographicCitation.doi | 10.3390/nano12224006 | |
dcterms.bibliographicCitation.issue | 22 | |
dcterms.bibliographicCitation.journaltitle | Nanomaterials | |
dcterms.bibliographicCitation.originalpublishername | MDPI | |
dcterms.bibliographicCitation.originalpublisherplace | Basel | |
dcterms.bibliographicCitation.volume | 12 | |
dcterms.rightsHolder.reference | Creative-Commons-Lizenz | |
tub.accessrights.dnb | free | |
tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Mehrphasenreaktionstechnik | |
tub.publisher.universityorinstitution | Technische Universität Berlin |
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