Soft-template assisted synthesis of mesoporous CuO/Cu 2 O composite hollow microspheres as efficient visible-light photocatalyst

Chen, Jiangyao; Liu, Xiaolu; Zhang, Haimin; Liu, Porun; Li, Guiying; An, Taicheng; Zhao, Huijun

doi:10.1016/j.matlet.2016.06.077

Cited by 28 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main advantages of this method are the simplicity and high crystallinity of the product, resulting in high yields [ 85 ]. Template-assisted hydrothermal synthesis has been used to produce metal oxides such as CuO/Cu 2 O composites, aluminum, titanium nanoparticles, Fe 2 O 3 , [ 86 ] NiO [ 87 ], and CO 3 O 4 hollow spheres with precise size and shape distributions controlled to achieve crystallinity [ 88 , 89 ].…”

Section: Metal Oxide Nanoparticlesmentioning

confidence: 99%

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

Alhalili

2023

Molecules

View full text Add to dashboard Cite

Nanotechnology (NT) is now firmly established in both the private home and commercial markets. Due to its unique properties, NT has been fully applied within multiple sectors like pharmacy and medicine, as well as industries like chemical, electrical, food manufacturing, and military, besides other economic sectors. With the growing demand for environmental resources from an ever-growing world population, NT application is a very advanced new area in the environmental sector and offers several advantages. A novel template synthesis approach is being used for the promising metal oxide nanostructures preparation. Synthesis of template-assisted nanomaterials promotes a greener and more promising protocol compared to traditional synthesis methods such as sol-gel and hydrothermal synthesis, and endows products with desirable properties and applications. It provides a comprehensive general view of current developments in the areas of drinking water treatment, wastewater treatment, agriculture, and remediation. In the field of wastewater treatment, we focus on the adsorption of heavy metals and persistent substances and the improved photocatalytic decomposition of the most common wastewater pollutants. The drinking water treatment section covers enhanced pathogen disinfection and heavy metal removal, point-of-use treatment, and organic removal applications, including the latest advances in pesticide removal.

show abstract

Section: Metal Oxide Nanoparticlesmentioning

confidence: 99%

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

Alhalili

2023

Molecules

View full text Add to dashboard Cite

show abstract

“…This is brought on by the ability for charge separation and the broad energy range for photoexcitation. Under light irradiation, the mixed phases of CuO and Cu 2 O exhibit better photocatalytic performance. , The photocatalytic hydrogen generation is also enhanced by using co-catalysts (NiO, Pt, Pd, etc.) and sacrificial reagents (methanol, ethanol, EDTA, Na 2 S–Na 2 SO 3 , etc.).…”

Section: Introductionmentioning

confidence: 99%

New Insights into Cu/Cu₂O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

et al. 2023

View full text Add to dashboard Cite

Cu/Cu 2 O/CuO nanocomposites were synthesized using the simple wet chemical approach for the production of dihydrogen as a potential fuel source and for the detoxification of dyes. The formation of Cu/Cu 2 O/ CuO nanocomposites is confirmed by powder X-ray diffraction, whereas the W-H plot revealed the average particle size of nanocomposite approximately 17 nm, which is in good agreement with the Scherrer method and transmission electron microscopy analysis. The uniform distribution of Cu and O elements was supported by the elemental mapping of the nanocomposite. Band gaps of CuO and Cu 2 O were found to be 1.71 and 1.92 eV, respectively, using diffuse reflectance spectroscopy spectra and Kubelka−Munk functions. The oxygen vacancies in the nanocomposite are confirmed by various analytical spectroscopic techniques, such as electron paramagnetic resonance, Raman, photoluminescence, and X-ray photoelectron spectroscopy (XPS) spectra. The significant boost in the performance of the fabricated nanocomposite was observed and is attributed to the formation of a heterojunction and existence of oxygen vacancy. The nanocomposite demonstrated proficiency in the photocatalytic splitting of water for the production of hydrogen. The maximum hydrogen generation yield (68 μmol g −1 ) was observed for Cu/Cu 2 O/CuO nanocomposites along with NiO (co-catalyst) and methanol as a hole scavenger as well as an electron donor. Moreover, the degradation of congo red (CR) and malachite green (MG) dyes was also investigated and the efficiency of the nanocomposite was found to be 80 and 60%, respectively, after 120 min of light irradiation. The stability of nanocomposites after photocatalysis was investigated by the XPS spectrum of the nanocomposite. Explicitly, the area and broadening of the O 1s XPS spectrum demonstrated higher degradation of CR dye as compared to MG dye.

show abstract

“…Over the past few years, due to its potential application in removing environmental pollutants and converting solar energy, much attention has been paid to transition metal oxides semiconductors photocatalysis [1,2]. Also, a number of photocatalysts have been developed, such as TiO 2 , MoO 3 , WO 3 , CuO, CaMoO 4 and so on [3][4][5][6]. However,as a result of the fast recombination rate of photogenerated electron-hole pairs, the majority of these photocatalysts have been restricted by low photocatalytic efficiency.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photocatalytic Properties of the Bi2MoO6 and Bi2WO6 Photocatalysts

Xia

Zhang

Wang

2018

KEM

View full text Add to dashboard Cite

Two different Bi-based semiconductor photocatalysts Bi2MoO6 and Bi2WO6 were synthesized by a simple one-pot hydrothermal reaction at 453 K for 10 h. The properties of the photocatalysts, including structures, morphology, light-absorption band and photoluminescence, etc were characterized by X-ray diffraction, scanning electron microscopy, UV-Vis diffuse reflectance spectrum and fluorescence spectrum. Further, their photocatalytic properties were compared by the degradation of two different organic dyes: Rhodamine B and methylene blue. It is important to note that the Bi2WO6 nanoplate structure exhibited better photocatalytic activity than the Bi2MoO6 nanowires aggregates due to its high surface area, higher light absorption and lower recombination of electron-hole pairs.

show abstract

Soft-template assisted synthesis of mesoporous CuO/Cu 2 O composite hollow microspheres as efficient visible-light photocatalyst

Cited by 28 publications

References 21 publications

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

New Insights into Cu/Cu₂O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

Synthesis and Photocatalytic Properties of the Bi<sub>2</sub>MoO<sub>6</sub> and Bi<sub>2</sub>WO<sub>6</sub> Photocatalysts

Contact Info

Product

Resources

About

Soft-template assisted synthesis of mesoporous CuO/Cu 2 O composite hollow microspheres as efficient visible-light photocatalyst

Cited by 28 publications

References 21 publications

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

New Insights into Cu/Cu2O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

Synthesis and Photocatalytic Properties of the Bi<sub>2</sub>MoO<sub>6</sub> and Bi<sub>2</sub>WO<sub>6</sub> Photocatalysts

Contact Info

Product

Resources

About

New Insights into Cu/Cu₂O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants