Optical fiber oxygen sensor using layer-by-layer stacked porous composite membranes

2016 ◽  
Author(s):  
Sayuri Ban ◽  
Ai Hosoki ◽  
Michiko Nishiyama ◽  
Atsushi Seki ◽  
Kazuhiro Watanabe
Keyword(s):  
Optical Fiber ◽  
Oxygen Sensor ◽  
Composite Membranes ◽  
Layer By Layer ◽  
Porous Composite

scholarly journals Luminescent Optical Fiber Oxygen Sensor following Layer-by-layer Method

2014 ◽  
Vol 87 ◽  
pp. 987-990 ◽  
Author(s):  
C. Elosua ◽  
N. de Acha ◽  
D. Lopez-Torres ◽  
I.R. Matias ◽  
F.J. Arregui
Keyword(s):  
Optical Fiber ◽  
Oxygen Sensor ◽  
Layer By Layer ◽  
Layer Method

scholarly journals Thermally Stimulated Desorption Optical Fiber-Based Interrogation System: An Analysis of Graphene Oxide Layers’ Stability

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 70
Author(s):  
Maria Raposo ◽  
Carlota Xavier ◽  
Catarina Monteiro ◽  
Susana Silva ◽  
Orlando Frazão ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Layer By Layer ◽  
Film Stability ◽  
A Value ◽  
Device Reliability ◽  
Sensor Devices ◽  
Lbl Films ◽  
The Stability

Thin graphene oxide (GO) film layers are being widely used as sensing layers in different types of electrical and optical sensor devices. GO layers are particularly popular because of their tuned interface reflectivity. The stability of GO layers is fundamental for sensor device reliability, particularly in complex aqueous environments such as wastewater. In this work, the stability of GO layers in layer-by-layer (LbL) films of polyethyleneimine (PEI) and GO was investigated. The results led to the following conclusions: PEI/GO films grow linearly with the number of bilayers as long as the adsorption time is kept constant; the adsorption kinetics of a GO layer follow the behavior of the adsorption of polyelectrolytes; and the interaction associated with the growth of these films is of the ionic type since the desorption activation energy has a value of 119 ± 17 kJ/mol. Therefore, it is possible to conclude that PEI/GO films are suitable for application in optical fiber sensor devices; most importantly, an optical fiber-based interrogation setup can easily be adapted to investigate in situ desorption via a thermally stimulated process. In addition, it is possible to draw inferences about film stability in solution in a fast, reliable way when compared with the traditional ones.

Layer-by-layer self-assembly of PDDA/PWA–Nafion composite membranes for direct methanol fuel cells

2010 ◽  
Vol 46 (9) ◽  
pp. 1434 ◽  
Author(s):  
Meng Yang ◽  
Shanfu Lu ◽  
Jinlin Lu ◽  
San Ping Jiang ◽  
Yan Xiang
Keyword(s):  
Fuel Cells ◽  
Self Assembly ◽  
Direct Methanol Fuel Cells ◽  
Composite Membranes ◽  
Layer By Layer ◽  
Direct Methanol ◽  
Methanol Fuel Cells

Cr(III) ionic imprinted polyvinyl alcohol/sodium alginate (PVA/SA) porous composite membranes for selective adsorption of Cr(III) ions

2010 ◽  
Vol 165 (2) ◽  
pp. 465-473 ◽  
Author(s):  
Jian Hua Chen ◽  
Guo Ping Li ◽  
Qing Lin Liu ◽  
Jian Cong Ni ◽  
Wen Bing Wu ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Sodium Alginate ◽  
Selective Adsorption ◽  
Composite Membranes ◽  
Porous Composite

Application of optical fiber oxygen sensor in coal mines

2014 ◽  
pp. 1109-1111 ◽  
Author(s):  
Yanjie Zhao ◽  
Yubin Wei ◽  
Yanfang Li ◽  
Tingting Zhang ◽  
Weisong Zhao ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Oxygen Sensor ◽  
Coal Mines

scholarly journals Layer-by-layer immobilization of carbon dots fluorescent nanomaterials on single optical fiber

2012 ◽  
Vol 735 ◽  
pp. 90-95 ◽  
Author(s):  
Helena M.R. Gonçalves ◽  
Abel J. Duarte ◽  
Frank Davis ◽  
Seamus P.J. Higson ◽  
Joaquim C.G. Esteves da Silva
Keyword(s):  
Optical Fiber ◽  
Carbon Dots ◽  
Layer By Layer ◽  
Fluorescent Nanomaterials

Single step fabrication of polymer/silicate porous composite membranes via water-glass induced phase inversion

2018 ◽  
Vol 58 (9) ◽  
pp. 957-966
Author(s):  
Eleni Kollia ◽  
George Mastrotheodoros ◽  
Vasiliki Kosma ◽  
Konstantinos G. Beltsios
Keyword(s):  
Water Glass ◽  
Phase Inversion ◽  
Composite Membranes ◽  
Single Step ◽  
Porous Composite

CHARACTERIZATION OF PCL/ZEOLITE ELECTROSPUN MEMBRANE FOR THE REMOVAL OF SILVER IN DRINKING WATER

2017 ◽  
Vol 79 (1-2) ◽  
Author(s):  
Muhammad Syhamiel Iqhwan Che Rusli ◽  
Mohd Izzat Hassan ◽  
Naznin Sultana ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Drinking Water ◽  
Polymer Solution ◽  
Composite Membranes ◽  
Zeolite Membrane ◽  
Layer By Layer ◽  
Electrospun Membrane ◽  
Separation Processes ◽  
Electrospinning Technique ◽  
Water Contact

The presence of heavy metals in drinking water leads to several health problems. In this study, polycaprolactone (PCL)/zeolite nano or microfiber electrospun composite membranes, diameter range of the fibers was 2 µm- 6 µm, were fabricated by using electrospinning technique. The membranes separation processes have played very crucial roles in water purification industry. Apart from that, the membranes are prepared with biocompatible, non-toxic materials which will be eco-friendly. In order to produce electrospun membrane, 15% (w/v) of PCL polymer solution was dissolved in acetone and 20% (w/w) zeolite was incorporated into the PCL polymer solution. Electricity charged jet of polymer solution from the syringe formed an electrostatics field when the high voltage of 20kV was applied. Scanning electron micrograph (SEM) and energy dispersive spectroscopy (EDX) implemented to indicate the characterization of membranes. The water contact angle of PCL/zeolite membrane was 119.53±5.24 which was almost same as pure PCL membrane (107.73±8.54). The inducible results obtained in this study suggested that electrospun pcl and polycaprolactone/zeolite layer by layer nanofibrous membranes can be a favored verdict for the removal of heavy metal ions.

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