A dye-doped optical sensor for the detection of biodiesel in diesel

Fong, Jonathan K.; Chen, Xue-Tai

doi:10.1039/c3cc43958e

Cited by 12 publications

(8 citation statements)

References 42 publications

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“…BWCO was included in this study because waste cooking oil is abundant and serves as a low-cost feedstock. [31][32][33][34][35][36] As a biodiesel resource, waste cooking oil is an important part of China's energy strategy. The reasonable use of waste cooking oil not only prevents harm to human health through the food chain but also directly avoids environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

Improving the fuel properties of biodiesel via complementary blending with diesel from direct coal liquefaction

Wang

Zhao

et al. 2015

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Improving the fuel properties of biodiesel via complementary blending with diesel from direct coal liquefaction

Wang

Zhao

et al. 2015

RSC Adv.

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“…After a previous literature research and group discussion, the students selected the work of Fong and Xue due to the ease of its adaptation to a methodology applying only liquid mixtures. Several mixtures containing Nile Blue chloride (NBC), a diluent (ethanol absolute, ETOH), and a sample (biodiesel/diesel blend, BX), where X is the proportion of biodiesel contained in the diesel blend in volume percentage, were tested.…”

Section: Results and Discussionmentioning

confidence: 99%

Approaching Diesel Fuel Quality in Chemistry Lab Classes: Undergraduate Student’s Achievements on Determination of Biodiesel Content in Diesel Oil Applying Solvatochromic Effect

et al. 2020

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An experimental procedure is presented that was developed by fifth-year chemical engineering and industrial chemistry undergraduates at the Federal University of Rio de Janeiro doing the discipline on Experimental Organic Technology. The aim of this study was to apply the solvatochromic effect of the dye Nile Blue chloride to the characterization of biodiesel/diesel blends with different biodiesel content, using an alternative image processing analysis method involving low-cost, simple, and rapid assays. The effect of the solvatochromic dye Nile Blue chloride was monitored using the software ImageJ, which is being used currently, yielding rapid and effective responses. As an outcome, the students proposed a procedure that had potential application to colorimetric determination of biodiesel content in diesel oil. This gave students the opportunity to put the knowledge acquired in the course into practice, by dealing with issues concerning the fuels industry, making the learning process more dynamic, engaging, and effective.

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“…For example, the use of biodiesel in pure form such as B100 can reduce vehicle emissions up to 60% as compared to neat diesel . Biodiesels consist mostly of fatty acid methyl esters, which are commonly produced in industries by transesterifications of biobased lipids with methanol. , Thus, even after a series of purification processes (centrifugation, water washing, and drying), the crude esterified products have often been found to be contaminated with trace amounts of either glycerol or methanol (Figure ). Glycerol, owing to its high density, can easily be eliminated by centrifugation, whereas removal of methanol from biodiesel samples is rather a difficult task because of its similar density and high solubility .…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Bonding-Induced Unique Charge-Transfer Emission from Multichromophoric Polypyridyl Ligands: Ratiometric Probing of Methanol Impurity in Commercial Biofuels

Dey

Bhattacharya

2021

ACS Sustainable Chem. Eng.

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This work is focused on utilizing fluorescent molecules for sensing the methanol content in (bio)fuels. Multichromophoric polypyridyl ligands with pyrene (1) and anthracene (2) as aryl residues have been synthesized. The twisted geometry of the probe molecules in both the solid state and aprotic solvents significantly curtails the electronic communication between the aryl moiety and pyridyl ligand (terpyridine). However, the excited-state hydrogen bonding interactions of methanol with terpyridine nitrogens result in the formation of a nearly planar conformation with larger charge separation. Thus, a broad “structureless” fluorescence spectrum was observed specifically in methanol with an exceptionally large Stokes shift (detection limit: 0.13%). However, the extent of redshift was found to be attributed to the angle of twisting as well as the electronic nature of the aryl moiety. Considering its high sensitivity, probe 1 is utilized for the detection of methanol impurity in soy-based biodiesel samples, like B100, B20, and so on. Interference studies indicate that the presence of competitive byproducts, such as monoglycerides and diglycerides, or unconsumed starting materials, such as fatty acid methyl esters poses no serious threats in methanol detection. Finally, the methanol-specific fluorescence response has been utilized to design paper strips for on-location detection of methanol contamination in biofuel samples.

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A dye-doped optical sensor for the detection of biodiesel in diesel

Abstract: The ability to detect biodiesel at various concentrations in diesel is an important goal in several industries. A simple, solvatochromic dye-doped optical sensor is presented for quick and direct detection of 0.5 ppm-20% v/v FAME/biodiesel in diesel.

Cited by 12 publications

References 42 publications

Improving the fuel properties of biodiesel via complementary blending with diesel from direct coal liquefaction

Improving the fuel properties of biodiesel via complementary blending with diesel from direct coal liquefaction

Approaching Diesel Fuel Quality in Chemistry Lab Classes: Undergraduate Student’s Achievements on Determination of Biodiesel Content in Diesel Oil Applying Solvatochromic Effect

Hydrogen Bonding-Induced Unique Charge-Transfer Emission from Multichromophoric Polypyridyl Ligands: Ratiometric Probing of Methanol Impurity in Commercial Biofuels

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