One-pot facile synthesis of reusable tremella-like M1@M2@M1(OH)2(M1= Co, Ni, M2= Pt/Pd, Pt, Pd and Au) three layers core–shell nanostructures as highly efficient catalysts

Nanoscale ◽  
2014 ◽  
Vol 6 (16) ◽  
pp. 9791 ◽  
Author(s):  
Yadong Liu ◽  
Zhen Fang ◽  
Long Kuai ◽  
Baoyou Geng
2014 ◽  
Vol 152-153 ◽  
pp. 403-412 ◽  
Author(s):  
Luiz C.A. Oliveira ◽  
Henrique S. Oliveira ◽  
Giovanna Mayrink ◽  
Herman S. Mansur ◽  
Alexandra A.P. Mansur ◽  
...  

2017 ◽  
Vol 10 (8) ◽  
pp. 1820-1827 ◽  
Author(s):  
Luo Yu ◽  
Haiqing Zhou ◽  
Jingying Sun ◽  
Fan Qin ◽  
Fang Yu ◽  
...  

3D core–shell nanostructures of few-layer NiFe LDH nanosheets grown on Cu nanowires are fabricated toward highly efficient overall water splitting.


2014 ◽  
Vol 265 ◽  
pp. 231-238 ◽  
Author(s):  
Jing-Jing Lv ◽  
Jie-Ning Zheng ◽  
Ying-Ying Wang ◽  
Ai-Jun Wang ◽  
Li-Li Chen ◽  
...  

2012 ◽  
Vol 133 (2-3) ◽  
pp. 808-812 ◽  
Author(s):  
Y.Y. Wang ◽  
K.F. Cai ◽  
J.L. Yin ◽  
Y. Du ◽  
X. Yao

2015 ◽  
Vol 219 ◽  
pp. 7-11
Author(s):  
Lina Liu ◽  
Ruirui Sun ◽  
Yongsheng Zhang ◽  
Ruifei Qin ◽  
Dongmei Zhang ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shaimaa Elyamny ◽  
Marwa Eltarahony ◽  
Marwa Abu-Serie ◽  
Marwa M. Nabil ◽  
Abd El-Hady B. Kashyout

AbstractMicrobial contamination is one of the major dreadful problems that raises hospitalization, morbidity and mortality rates globally, which subsequently obstructs socio-economic progress. The continuous misuse and overutilization of antibiotics participate mainly in the emergence of microbial resistance. To circumvent such a multidrug-resistance phenomenon, well-defined nanocomposite structures have recently been employed. In the current study, a facile, novel and cost-effective approach was applied to synthesize Ag@Ag2O core–shell nanocomposites (NCs) via chemical method. Several techniques were used to determine the structural, morphological, and optical characteristics of the as-prepared NCs. XRD, Raman, FTIR, XPS and SAED analysis revealed a crystalline hybrid structure of Ag core and Ag2O shell. Besides, SEM and HRTEM micrographs depicted spherical nanoparticles with size range of 19–60 nm. Additionally, zeta potential and fluorescence spectra illustrated aggregated nature of Ag@Ag2O NCs by − 5.34 mV with fluorescence emission peak at 498 nm. Ag@Ag2O NCs exhibited higher antimicrobial, antibiofilm, and algicidal activity in dose-dependent behavior. Interestingly, a remarkable mycocidal potency by 50 μg of Ag@Ag2O NCs against Candida albican; implying promising activity against COVID-19 white fungal post-infections. Through assessing cytotoxicity, Ag@Ag2O NCs exhibited higher safety against Vero cells than bulk silver nitrate by more than 100-fold.


Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3390
Author(s):  
Di Wu ◽  
Jun Guo ◽  
Zhen-Hua Ge ◽  
Jing Feng

Varying structure Bi2Te3-based nanocomposite powders including pure Bi2Te3, Bi2Te3/Bi core−shell, and Bi2Te3/AgBiTe2 heterostructure were synthesized by hydrothermal synthesis using Bi2S3 as the template and hydrazine as the reductant. Successful realization of Bi2Te3-based nanostructures were concluded from XRD, FESEM, and TEM. In this work, the improvement in the performance of the rhodamine B (RhB) decomposition efficiency under visible light was discussed. The Bi2Te3/AgBiTe2 heterostructures revealed propitious photocatalytic performance ca. 90% after 60 min. The performance was over Bi2Te3/Bi core-shell nanostructures (ca. 40%) and more, exceeding pure Bi2Te3 (ca. 5%). The reason could be scrutinized in terms of the heterojunction structure, improving the interfacial contact between Bi2Te3 and AgBiTe2 and enabling retardation in the recombination rate of the photogenerated charge carriers. A credible mechanism of the charge transfer process in the Bi2Te3/AgBiTe2 heterostructures for the decomposition of an aqueous solution of RhB was also explicated. In addition, this work also investigated the stability and recyclability of a Bi2Te3/AgBiTe2 heterojunction nanostructure photocatalyst. In addition, this paper anticipates that the results possess broad potential in the photocatalysis field for the design of a visible light functional and reusable heterojunction nanostructure photocatalyst.


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