Synthesis and characterization of Sr-doped ZnO nanoparticles for photocatalytic applications

Yarahmadi, Mohadeseh; Maleki-Ghaleh, H.; Mehr, M. Emami; Dargahi, Z.; Rasouli, Fatemeh; Siadati, M. H.

doi:10.1016/j.jallcom.2020.157000

Cited by 93 publications

(35 citation statements)

References 90 publications

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“…[25] The UV-vis absorption spectra of the CsPbBr 3 /Cs 4 PbBr 6 particles include two absorption edges, near 345 nm and 525 nm, which are ascribed to Cs 4 PbBr 6 and CsPbBr 3 respectively, [26] further 3b) of the new and aged samples both show a new absorption edge derived from ZnO, near 381 nm. [27] Figure 4 The chemical components of CsPbBr 3 /Cs 4 PbBr 6 /ZnO were futher analyzed by XPS, as shown in Figure S4 (Supporting information). In Figure S4b-c (Supporting information), the peak of Zn 2p 1/2 , Zn 2p 3/2 and O 1s is located at 1043.5 eV, 1020.4 eV, and 530.8 eV, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…After aging, the diffraction peaks of CsPbBr 3 and Cs 4 PbBr 6 are sharper, indicating that the crystallinity of CsPbBr 3 /Cs 4 PbBr 6 could be improved. Compared to the absorption spectra of CsPbBr 3 /Cs 4 PbBr 6 , the UV-Vis absorption spectra (Figure3b) of the new and aged samples both show a new absorption edge derived from ZnO, near 381 nm [27]. Figure4displays SEM of the aged CsPbBr 3 /Cs 4 PbBr 6 /ZnO (20 mmol/L).…”

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confidence: 97%

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All‐Inorganic CsPbBr₃/Cs₄PbBr₆ Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

Wang

Wang²,

Lin

et al. 2021

ChemistrySelect

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High-sensitive detection of NO is very important to protect environment and human health. In this study, the composites of ZnO nanorods and CsPbBr 3 /Cs 4 PbBr 6 particles are synthesized successfully and used as sensing materials for detection of NO, in which the as-prepared samples exhibit ultra-high response and excellent selectivity to NO at 50°C. Toward 100 ppm NO, the response is up to about 2296. The samples can high-sensitively detect 1 ppm NO with response of about 6, demonstrating a low detection limit. The high response of CsPbBr 3 /Cs 4 PbBr 6 /ZnO could be attributed to the multiple heterojunctions formed among three materials. The results demonstrated that the composites of CsPbBr 3 /Cs 4 PbBr 6 and ZnO should be a promising material for preparing the highsensitive NO sensors at low temperature.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 97%

All‐Inorganic CsPbBr₃/Cs₄PbBr₆ Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

Wang

Wang²,

Lin

et al. 2021

ChemistrySelect

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“…Also, the efficiency of removing methylene blue (96.84%) was higher than methyl blue (90.05%) [98]. Moreover, Samarium [99] and Strontium [100] were used to enhance the photocatalytic activity of ZnO. https://www.indjst.org/…”

Section: Doped Zno Nanostructures For Dye Removalmentioning

confidence: 99%

Zinc Oxide Nanostructures in the Textile Industry

Nisansala¹,

Rajapaksha²,

Dikella³

et al. 2021

IJST

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Background:The zinc oxide nanostructures have been using in the textile industry since the early 2000s. However, the efficiency of dye removal, antibacterial and UV protection were enhanced by researchers using different techniques. Objective: This review focuses on the latest research of dye removal, UV protection and antibacterial activity with mechanisms, to discover the most efficient methods to apply ZnO nanostructures effectively for the textile industry. Findings: The photocatalytic activity and photosensitivity of ZnO nanostructures were enhanced by doping materials such as Cu, Fe 2 O 3 , Co, Ce, Al, and Mn. The UV protection of ZnO nanostructures was efficient even with low loading percentages and effectively retained in the textiles. However, the dye removal efficiency was increased with pH due to the high concentration of hydroxyl radicals in the media. Although the UV protection ability of ZnO nanostructures in the textile industry was hindered by photocatalytic activity, scientists had overcome this issue by doping impurities such as SiO 2 , cobalt, and manganese. The antibacterial properties of ZnO nanostructures were changed according to the loaded amount of zinc oxide nanostructures on the textile surface. In most of the research, Escherichia coli and Staphylococcus aureus were used as test organisms to study the antibacterial property of ZnO nanostructures. The green synthesis of ZnO nanostructures is more favorable for all applications due to their nontoxicity and eco-friendly nature.

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“…Zinc oxide has been widely applied as photocatalysts [ 1 , 2 , 3 , 4 ], antimicrobial agents [ 5 , 6 , 7 ], supercapacitors [ 8 , 9 ], sensors [ 6 , 10 ], varistor [ 11 ], biosensors [ 10 ], in solar cells [ 12 , 13 , 14 ], transparent electrodes [ 15 ], and fuel cells [ 9 , 16 ]. This wide range of applications is based on the characteristics of ZnO as an n-type semiconductor, low-cost, chemical, and thermal stability, a direct band gap (~3.3 eV), and binding energy of 60 meV [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…Various methods are applied to prepare metal oxide nanoparticles and nanocomposites as simple precipitation [ 23 ], electrochemical method [ 24 ], mechanical milling [ 1 ], sol-gel method [ 2 , 25 ], biocombustion [ 26 ], co-precipitation [ 27 ], green synthesis [ 28 , 29 ], sonochemical synthesis [ 30 ] and hydrothermal method [ 31 , 32 ]. The hydrothermal method has many advantages as being simple, low-cost, and low-temperature.…”

Section: Introductionmentioning

confidence: 99%

Acacia nilotica Pods’ Extract Assisted-Hydrothermal Synthesis and Characterization of ZnO-CuO Nanocomposites

2022

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This work represents a novel combination between Acacia nilotica pods’ extract and the hydrothermal method to prepare nanoparticles of pure zinc oxide and pure copper oxide and nanocomposites of both oxides in different ratios. Five samples were prepared with different ratios of zinc oxide and copper oxide; 100% ZnO (ZC0), 75% ZnO: 25% CuO (ZC25), 50% ZnO: 50% CuO (ZC50), 25% ZnO: 75% CuO (ZC75), and 100% CuO (ZC100). Several techniques have been applied to characterize the prepared powders as FTIR, XRD, SEM, and TEM. The XRD results confirm the formation of the hexagonal wurtzite phase of zinc oxide and the monoclinic tenorite phase of copper oxide. The microscopy results show the formation of a heterostructure of nanocomposites with an average particle size of 13–27 nm.

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Synthesis and characterization of Sr-doped ZnO nanoparticles for photocatalytic applications

Cited by 93 publications

References 90 publications

All‐Inorganic CsPbBr₃/Cs₄PbBr₆ Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

All‐Inorganic CsPbBr₃/Cs₄PbBr₆ Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

Zinc Oxide Nanostructures in the Textile Industry

Acacia nilotica Pods’ Extract Assisted-Hydrothermal Synthesis and Characterization of ZnO-CuO Nanocomposites

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Synthesis and characterization of Sr-doped ZnO nanoparticles for photocatalytic applications

Cited by 93 publications

References 90 publications

All‐Inorganic CsPbBr3/Cs4PbBr6 Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

All‐Inorganic CsPbBr3/Cs4PbBr6 Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

Zinc Oxide Nanostructures in the Textile Industry

Acacia nilotica Pods’ Extract Assisted-Hydrothermal Synthesis and Characterization of ZnO-CuO Nanocomposites

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All‐Inorganic CsPbBr₃/Cs₄PbBr₆ Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature

All‐Inorganic CsPbBr₃/Cs₄PbBr₆ Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature