Effect of Cupric Salts (Cu (NO3)2, CuSO4, Cu(CH3COO)2) on Cu2(OH)PO4 Morphology for Photocatalytic Degradation of 2,4-dichlorophenol under Near-infrared light irradiation

Hu, Chao; Li, Pei; Zhang, Wei; Che, Yanhao; Sun, Yaxin; Chi, Fangli; Ran, Songlin; Liu, Xianguo; Lv, Yaohui

doi:10.1590/1980-5373-mr-2016-0561

Cited by 9 publications

(6 citation statements)

References 19 publications

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“…In Figure 5, it is possible to observe peaks at 2θ = 8.86°, 15.34°, and 17.76° in the CG-CuNPs spectrum which are also seen in CuSO 4 (Inorganic Crystal Structure Database). 21…”

Section: Resultsmentioning

confidence: 99%

“…In Figure 5, it is possible to observe peaks at 2h ¼ 8.86 , 15.34 , and 17.76 in the CG-CuNPs spectrum which are also seen in CuSO 4 (Inorganic Crystal Structure Database). 21 CG, used as a stabilizer, presented a broad peak around 2h ¼ 23 because of the characteristic highly amorphous nature of this polymer. 22,23 Meanwhile, ascorbic acid showed peaks at 2h ¼ 12.08 and 13.44 in accordance with data from the Cambridge Structural Database.…”

Section: Synthesis and Characterization Of Copper Nps Stabilized With Cgmentioning

confidence: 99%

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Copper nanoparticles stabilized with cashew gum: Antimicrobial activity and cytotoxicity against 4T1 mouse mammary tumor cell line

et al. 2019

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Copper nanoparticles stabilized with cashew (CG-CuNPs) were synthesized by reduction reaction using ascorbic acid and sodium borohydride, using the cashew gum (CG) as a natural polymer stabilizer. Dynamic light scattering, atomic force microscopy, Fourier-transform infrared spectroscopy, UV-Vis spectrophotometry, and x-ray diffraction were used to characterize the nanoparticles (CG-CuNPs), and copper was quantified by electrochemical measurement. The UV-vis spectra of the CG-CuNPs confirmed the formation of nanoparticles by appearance of a surface plasmon band at 580 nm after 24 h of reaction. The Fourier-transform infrared spectrum of CG-CuNPs showed the peak at 1704 cm−1 from cashew gum, confirming the presence of the gum in the nanoparticles. The average size of CG-CuNPs by dynamic light scattering and atomic force microscopy was around 10 nm, indicating small, approximately spherical particles. Antimicrobial assays showed that CG-CuNPs had activity against Staphylococcus aureus ATCC 29213 with a minimal inhibitory concentration of 0.64 mM. The cytotoxicity assay on BALB/c murine macrophages showed lower cytotoxic effects for CG-CuNPs than CuSO4·5H2O. Viability cell assays for CG-CuNPs at (0.250 mM) inhibited by 70% the growth of 4T1 LUC (4T1 mouse mammary tumor cell line) and NIH 3T3 cells (murine fibroblast cells) over a 24-h period. Therefore, CG-CuNPs can be used as an antimicrobial agent with lower cytotoxic effects than the CuSO4·5H2O precursor.

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“…In Figure 5, it is possible to observe peaks at 2θ = 8.86°, 15.34°, and 17.76° in the CG-CuNPs spectrum which are also seen in CuSO 4 (Inorganic Crystal Structure Database). 21…”

Section: Resultsmentioning

confidence: 99%

Section: Synthesis and Characterization Of Copper Nps Stabilized With Cgmentioning

confidence: 99%

Copper nanoparticles stabilized with cashew gum: Antimicrobial activity and cytotoxicity against 4T1 mouse mammary tumor cell line

et al. 2019

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“…The sample before etching produced by using nonpurged media was further analyzed, and the results demonstrate the phase transition from Cu 2 S to Cu 2– x S, confirmed by GIXRD patterns − (Figure e). In addition, the low-magnification TEM image verifies the presence of chiral self-assembled Cu 2– x S MTs (Figure g), and the high-magnification TEM image also illustrates the formation of chiral self-assembled Cu 2– x S MTs by assembling the building block NPs (Figure h).…”

Section: Resultsmentioning

confidence: 83%

Multiscale Chiral Synthesis via Self-Assembly of Achiral Nanoparticles for Next-Generation Chiral Material-Based Applications: The Role of Metal Ions as Chirality Messengers

Jung,

Lee,

Kwon

et al. 2023

ACS Appl. Nano Mater.

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Chiroptical activity over a broad range is expected to enable numerous applications including bioimaging and nanothermometers. However, understanding the chemical mechanism behind producing multiscale chirality for broad range chiroptical activities remains challenging. Here, we present a simple multiscale chiral synthesis and elucidate the underlying chemical mechanism for the self-assembly of achiral copper sulfide nanoparticles (NPs). The initially achiral NPs assemble into anisotropically twisted structures with a distinct handedness depending on the chirality of the molecules in the solution. Importantly, we reveal for the first time, to our knowledge, that metal ions act as messengers that transfer chirality information from small molecules to microstructures. The resulting multiscale chiral structures exhibit strong and broad chiroptical activities ranging from the ultraviolet to the infrared. This study not only enhances the understanding of the mechanism of chiral self-assembly but also offers effective approaches to producing chiral inorganic materials with strong chiroptical activities for next-generation chiral material-based applications.

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“…3 ), acetate (CH 3 COO − ), chloride (Cl − ) and sulphate (SO 2− 4 ) vary, they lead to different types of interactions in the reaction bath, hence, the properties of the copper oxide nanoparticles are seen to be different so also, the antibacterial efficacy [5].…”

Section: 5a Micmentioning

confidence: 99%

“…The properties of various metal oxide nanoparticles are reported to be affected by the method of preparation as well as the type of precursors used [4][5][6][7][8][9][10][11][12][13][14][15][16]. Various methods were used to synthesize copper oxide.…”

Section: Introductionmentioning

confidence: 99%

Precursor-dependent structural properties and antibacterial activity of copper oxide

et al. 2018

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Inorganic metal oxide nanoparticles of zinc, copper and iron have been widely studied for their use in biomedical research due to their novel physical, chemical and biological properties. Present work involves studies on copper oxide nanoparticles for their antibacterial activity. Copper oxide (CuO) nanoparticles were synthesized by template-free hydrothermal synthesis using different precursors of copper (nitrate, acetate, chloride and sulphate). The samples were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) analysis, ultraviolet-visible (UV-Vis) absorption spectroscopy, scanning electron microscopy (SEM) and zeta potential analysis. The XRD patterns of the synthesized samples show presence of (−111) and (111) planes, which can be assigned to the monoclinic phase of CuO with the average crystallite size ranging between 43 and 49 nm. The SEM reveals rod-shaped morphology of the samples with a broad size distribution. The optical band gap calculated by UV-Vis absorption study ranges between 1.35 and 1.38 eV. The highly negative zeta potential values of the CuO synthesized with nitrate (−23.78 ± 0.95 mV), acetate (−11.86 ± 1.06 mV) and sulphate (−22.33 ± 0.85 mV) precursors of copper reveal the good colloidal stability of the synthesized particles. While CuO synthesized with copper (II) chloride shows intermediate stability with the zeta potential as 9.40 ± 1.86 mV. The antibacterial activity of the synthesized CuO was studied against human pathogens like Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacterial strains, which are proved to be efficient and precursor-dependent. The minimum inhibitory concentration of CuO against E. coli and S. aureus were found to be 0.15 and 0.1 mg ml −1 , respectively. CuO nanoparticles exhibit good antibacterial activity, hence, it has potential for biomedical applications in preventing and treating infections.

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Effect of Cupric Salts (Cu (NO3)2, CuSO4, Cu(CH3COO)2) on Cu2(OH)PO4 Morphology for Photocatalytic Degradation of 2,4-dichlorophenol under Near-infrared light irradiation

Cited by 9 publications

References 19 publications

Copper nanoparticles stabilized with cashew gum: Antimicrobial activity and cytotoxicity against 4T1 mouse mammary tumor cell line

Copper nanoparticles stabilized with cashew gum: Antimicrobial activity and cytotoxicity against 4T1 mouse mammary tumor cell line

Multiscale Chiral Synthesis via Self-Assembly of Achiral Nanoparticles for Next-Generation Chiral Material-Based Applications: The Role of Metal Ions as Chirality Messengers

Precursor-dependent structural properties and antibacterial activity of copper oxide

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