ArticleMolecules (Basel, Switzerland)2017
Photocatalytic and Adsorption Performances of Faceted Cuprous Oxide (Cu₂O) Particles for the Removal of Methyl Orange (MO) from Aqueous Media.
Article in Molecules (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Recyclable Hydrotalcite-Supported Copper Catalysts for Green and Regioselective Click Synthesis of 1,2,3-Triazoles.ACS omega · 2026Article
- Heterostructured S-Scheme BiOBr/CuACS omega · 2024Article
- Cu-ZnO Embedded in a Polydopamine Shell for the Generation of Antibacterial Surgical Face Masks.Molecules (Basel, Switzerland) · 2024Article
- CuPharmaceuticals (Basel, Switzerland) · 2024Article
- Antimicrobial Activity of Morphology-Controlled CuMaterials (Basel, Switzerland) · 2024Article
- Rational Design of Monolithic g-CMolecules (Basel, Switzerland) · 2023Article
- Control of evolution of porous copper-based metal-organic materials for electroreduction of COMaterials advances · 2023Article
- Review
- Study on the Adsorption of CuFeMolecules (Basel, Switzerland) · 2020Article
- Formation of CuMaterials (Basel, Switzerland) · 2020Article
- Crystal-facet-dependent denitrosylation: modulation of NO release fromChemical science · 2019Article
- Dual Functional S-Doped g-C₃N₄ Pinhole Porous Nanosheets for Selective Fluorescence Sensing of Ag⁺ and Visible-Light Photocatalysis of Dyes.Molecules (Basel, Switzerland) · 2019Article
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6 authors.
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Abstract
Particles of sub-micron size possess significant capacity to adsorb organic molecules from aqueous media. Semiconductor photocatalysts in particle form could potentially be utilized for dye removal through either physical adsorption or photo-induced chemical process. The photocatalytic and adsorption capabilities of Cu₂O particles with various exposed crystal facets have been studied through separate adsorption capacity test and photocatalytic degradation test. These crystals display unique cubic, octahedral, rhombic dodecahedral, and truncated polyhedral shapes due to specifically exposed crystal facet(s). For comparison, Cu₂O particles with no clear exposed facets were also prepared. The current work confirms that the surface charge critically affects the adsorption performance of the synthesized Cu₂O particles. The octahedral shaped Cu₂O particles, with exposed {111} facets, possess the best adsorption capability of methyl orange (MO) dye due to the strongest positive surface charge among the different types of particles. In addition, we also found that the adsorption of MO follows the Langmuir monolayer mechanism. The octahedral particles also performed the best in photocatalytic dye degradation of MO under visible light irradiation because of the assistance from dye absorption. On top of the photocatalytic study, the stability of these Cu₂O particles during the photocatalytic processes was also investigated. Cu(OH)₂ and CuO are the likely corrosion products found on the particle surface after the photocorrosion in MO solution. By adding hole scavengers in the solution, the photocorrosion of Cu₂O was greatly reduced. This observation confirms that the photocatalytically generated holes were responsible for the photocorrosion of Cu₂O.
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