SERS Signal Enhancement of Methylene Blue-embedded Agglomerated Gold Nanorod@SiO2 Core@Shell Composites

2018 ◽  
Vol 39 (8) ◽  
pp. 936-940 ◽  
Author(s):  
Kyu-Dong Shim ◽  
Eue-Soon Jang
2017 ◽  
Vol 13 (6) ◽  
Author(s):  
Linshan Wang ◽  
Cholhwan Kim ◽  
Xinyue Zhang ◽  
Carlos Fernandez ◽  
Ting Sun ◽  
...  

2021 ◽  
Vol 422 ◽  
pp. 129983
Author(s):  
Yi Li ◽  
Xiaoli Xin ◽  
Tingting Zhang ◽  
Weihua Li ◽  
Jiansheng Li ◽  
...  

2017 ◽  
Vol 27 (36) ◽  
pp. 1701842 ◽  
Author(s):  
Fengwen Kang ◽  
Jijun He ◽  
Tianying Sun ◽  
Zhi Yong Bao ◽  
Feng Wang ◽  
...  

2013 ◽  
Vol 664 ◽  
pp. 574-577
Author(s):  
Hong Yan Wang ◽  
Hong Liang Li ◽  
Hui Liu ◽  
Ai Ping Fu ◽  
Guang Wei Kan ◽  
...  

Non-contacting (rattle-type) carbon-sphere@TiO2/Cu core-shell composites were prepared through the spray drying technique combined with calcinations using melamine formaldehyde (MF) microspheres as core templates, and TiO2colloid and cupric salt as shell precursors. After the calcination of the as-dried MF@TiO2/cupric salt core-shell spheres at elevated temperatures under nitrogen, rattle-type carbon-sphere@TiO2/Cu core-shell composites were derived with relative uniform sizes. Photocatalytic tests showed that the composites obtained at 550 °C exhibited higher efficiency than those obtained at 700 and 800°C and also higher than the P25 commercial TiO2for the degradation of methylene blue (MB) under visible light irradiation. Antibacterial studies revealed that the rattle-type composites owned excellent antibacterial ability and were stable and reusable.


2012 ◽  
Vol 463-464 ◽  
pp. 543-547 ◽  
Author(s):  
Cheng Feng Li ◽  
Xiao Lu Ge ◽  
Shu Guang Liu ◽  
Fei Yu Liu

Core-shell structured hydroxyapatite (HA)/meso-silica was prepared and used as absorbance of methylene blue (MB). HA/meso-silica was synthesized in three steps: preparation of nano-sized HA by wet precipitation method, coating of dense silica and deposition of meso-silica shell on HA. As-received samples were characterized by Fourier transformed infare spectra, small angle X-ray diffraction, nitrogen adsorption-desorption isotherm and transmission electron microscopy. A wormhole framework mesostructure was found for HA/meso-silica. The specific surface area and pore volume were 128 m2•g-1 and 0.36 cm3•g-1, respectively. From the adsorption isotherm, HA/meso-silica with the great specific surface area exhibited a prominent adsorption capacity of MB (134.0 mg/g) in comparison with bare HA (0 mg/g). This study might shed light on surface modification of conventional low-cost adsorbents for removal of organic pollutants from aqueous solutions.


2019 ◽  
Vol 26 (6) ◽  
pp. 1889-1889
Author(s):  
Fazle Subhan ◽  
Sobia Aslam ◽  
Zifeng Yan ◽  
Mawaz Khan ◽  
U. J. Etim ◽  
...  
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