Improved selectivity, response time and recovery time by [010] highly preferred-orientation silicalite-1 layer coated on SnO2 thin film sensor for selective ethylene gas detection

Jadsadapattarakul, Damrongsak; Thanachayanont, Chanchana; Nukeaw, Jiti; Sooknoi, Tawan

doi:10.1016/j.snb.2009.10.035

Cited by 54 publications

(31 citation statements)

References 51 publications

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“…Neat PLTG exhibits two diffraction peaks at around 2q ¼ 16. 48 This nding well agrees with the SEM images where CCW particles in the PLTG matrix are preferably oriented along one direction and paralleled to the surface (Fig. 6c and e).…”

Section: Surface Modied Plla-g-ccw Particlessupporting

confidence: 90%

Composites of poly(l-lactide-trimethylene carbonate-glycolide) and surface modified calcium carbonate whiskers as a potential bone substitute material

et al. 2016

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Calcium carbonate whisker (CCW) particles were surface modified by grafting of poly(L-lactide) (PLLA) chains in order to improve their affinity to a poly(L-lactide-trimethylene carbonate-glycolide) (PLTG) terpolymer matrix. Composites of the PLTG matrix with CCW and PLLA-g-CCW of various contents were prepared by mixing in solution followed by solvent evaporation. The structure and properties of pure CCW, surface modified PLLA-g-CCW and PLTG/PLLA-g-CCW composites were investigated using Fourier transfer-infrared spectrometry (FT-IR), mechanical testing, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), contact angle measurement, thermal gravity analysis (TGA) and differential scanning calorimetry (DSC). Data show that PLLA chains were successfully grafted on the CCW surface. The PLTG/PLLA-g-CCW composites exhibit a higher tensile strength and elongation at break than neat PLTG. Optimal values are obtained with a PLLA-g-CCW content of 2 wt%. It is assumed that PLLA-g-CCW particles present both reinforcing and toughening effects on the PLTG matrix. The cytocompatibility of the materials was evaluated from cell morphology and MTT assay using the L929 mouse fibroblast cell line. The results indicate that the composite presents very low cytotoxicity. Therefore, PLTG/PLLA-g-CCW composites with improved mechanical properties and good cytocompatibility could be promising as a potential bone substitute material.

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Section: Surface Modied Plla-g-ccw Particlessupporting

confidence: 90%

Composites of poly(l-lactide-trimethylene carbonate-glycolide) and surface modified calcium carbonate whiskers as a potential bone substitute material

et al. 2016

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“…The micromachined sensor presented a considerable reduction of response times without apparent loss of performance. Sensing response, response time, and recovery time for selective ethylene gas detection were improved by coating a layer of b -oriented silicalite-1 layers [ 228 ] or [010] highly preferredorientation silicalite-1 polycrystals on SnO 2 thin fi lm sensors [ 229 ].…”

Section: Sensorsmentioning

confidence: 99%

Zeolite Thin Films and Membranes: From Fundamental to Applications

Wang

Yan

2016

Green Chemistry and Sustainable Technology

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Zeolite fi lms and membranes have extensively been investigated since 1992. Many new preparation methods and concepts have been developed, such as microwave synthesis, intergrowth supporting substances, covalent linker synthesis, inner-side synthesis, fl uoride-mediated synthesis, variable-temperature synthesis, masking technique, counter-diffusion secondary growth, and pore-plugging synthesis. The remarkable progress made in the preparation has stimulated many application researches of zeolite fi lms and membranes, such as dehydration of various organic solvents, organics extraction from organic/water mixtures, separation of organic mixtures, gas separation, oil-water separation, desalination of seawater, membrane reactors, membrane microreactors, low-k materials, corrosion-resistant materials, sensors, fuel cells, and batteries. The recent progress in preparation and applications of zeolite membranes from 2000 has been summarized in this chapter.

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“…Temperature and pressure dependence of ozone gas absorption cross section in the UV and visible spectrums [80,94]. Performance indicators/metrics of ozone sensors and sensors in general include selectivity, sensitivity, accuracy, resolution, response time, fabrication cost, dynamic range, precision and linearity [58,[95][96][97][98][99]. Sensor requirements either in performance, physical, or cost, are application dependent [100].…”

Section: Research Challengesmentioning

confidence: 99%

Fundamental Review to Ozone Gas Sensing Using Optical Fibre Sensors

et al. 2015

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The manuscript is a review of basic essentials to ozone gas sensing with optical methods. Optical methods are employed to monitor optical absorption, emission, reflectance and scattering of gas samples at specific wavelengths of light spectrum. In the light of their importance in numerous disciplines in analytical sciences, necessary integral information that serves both as a basis and reference material for intending researchers and others in the field is inevitable. This review provides insight into necessary essentials to gas sensing with optical fibre sensors. Ozone gas is chosen as a reference gas. Simulation results for ozone gas absorption cross section in the ultraviolet (UV) region of the spectrum using spectralcalc.com simulation have also been included.

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Improved selectivity, response time and recovery time by [010] highly preferred-orientation silicalite-1 layer coated on SnO2 thin film sensor for selective ethylene gas detection

Cited by 54 publications

References 51 publications

Composites of poly(l-lactide-trimethylene carbonate-glycolide) and surface modified calcium carbonate whiskers as a potential bone substitute material

Composites of poly(l-lactide-trimethylene carbonate-glycolide) and surface modified calcium carbonate whiskers as a potential bone substitute material

Zeolite Thin Films and Membranes: From Fundamental to Applications

Fundamental Review to Ozone Gas Sensing Using Optical Fibre Sensors

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