Acid fuchsin dosimeter: a potential dosimeter for food irradiation dosimetry

Sayed, Murtaza; Tabassum, Safia; Shah, Noor S.; Khan, Javed Ali; Shah, Luqman Ali; Rehman, Fahad; Khan, Sana Ullah; Khan, Hasan M.; Ullah, Mohib

doi:10.1007/s11694-018-9983-1

Cited by 12 publications

(3 citation statements)

References 32 publications

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“…Water resources have been harmed by a variety of toxins, including heavy metals, dyes, surfactants, phenols, and other personal care chemicals [1][2][3]. Since heavy metal waste almost does not dissolve into harmless materials, it accumulates and is toxic to humans.…”

Section: Introductionmentioning

confidence: 99%

Pristine and Magnetic Kenaf Fiber Biochar for Cd2+ Adsorption from Aqueous Solution

Saeed

Harun

Sufian

et al. 2021

IJERPH

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Development of strategies for removing heavy metals from aquatic environments is in high demand. Cadmium is one of the most dangerous metals in the environment, even under extremely low quantities. In this study, kenaf and magnetic biochar composite were prepared for the adsorption of Cd2+. The synthesized biochar was characterized using (a vibrating-sample magnetometer VSM), Scanning electron microscopy (SEM), X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The adsorption batch study was carried out to investigate the influence of pH, kinetics, isotherm, and thermodynamics on Cd2+ adsorption. The characterization results demonstrated that the biochar contained iron particles that help in improving the textural properties (i.e., surface area and pore volume), increasing the number of oxygen-containing groups, and forming inner-sphere complexes with oxygen-containing groups. The adsorption study results show that optimum adsorption was achieved under pH 5–6. An increase in initial ion concentration and solution temperature resulted in increased adsorption capacity. Surface modification of biochar using iron oxide for imposing magnetic property allowed for easy separation by external magnet and regeneration. The magnetic biochar composite also showed a higher affinity to Cd2+ than the pristine biochar. The adsorption data fit well with the pseudo-second-order and the Langmuir isotherm, with the maximum adsorption capacity of 47.90 mg/g.

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Section: Introductionmentioning

confidence: 99%

Pristine and Magnetic Kenaf Fiber Biochar for Cd2+ Adsorption from Aqueous Solution

Saeed

Harun

Sufian

et al. 2021

IJERPH

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“…The authors have cited additional references within the Supporting Information. [8,11,[22][23][24][25][26][27][28][29][30]…”

Section: Supporting Informationmentioning

confidence: 99%

Imino‐BODIPY‐Based, Highly Sensitive, Fluorescent Dosimeter for Low‐Dose Gamma Radiation**

Choudhary,

Gorai,

Patro

et al. 2023

ChemPhotoChem

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A fluorescent gamma (γ) dosimeter based on imino‐BODIPY dye is developed. The dosimeter is highly sensitive with lowest LOD (0.001 Gy) reported so far for gamma dosimeters based any analytical methods. The dosimeter also shows colourimetric changes under γ‐exposure which is useful for quick detection of the γ‐doses. Detailed mechanistic study was done to explain these colourimetric and fluorometric changes. Thus, the dosimeter will be useful for measuring accurate gamma‐doses in medical applications due to its high sensitivity. Interestingly, the dynamic range of the dosimeter can be tuned by changing the dye concentration. The dosimeter with 57.0 µM dye is capable of colourimetric and fluorometric measurement of γ‐doses in blood irradiation which is useful for quick and accurate measurement of absorbed γ‐doses during blood irradiation.

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“…The removal of azo dyes from water canbe carried out using different methods, including adsorption, ultrafiltration, reverse osmosis, ion-exchange, biodegradation, electrochemical reduction, heterogeneous photocatalysis, photo-Fenton process, gamma irradiation, etc. [8][9][10][11][12][13][14][15]. Semiconductorphotocatalysis, employing titanium dioxide (TiO 2 ), copper oxide (Cu 2 O), zinc oxide (ZnO 2 ), magnetite (Fe 3 O 4 ), and tungsten oxide (WO 3 ), has been extensively used for water decontamination, owing to the ease of use, high photostability, economy, environmentally friendly processing, and generation of harmless by-products [16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Solar Photo-Activation of Chitosan-Modified Nickel Magnetite Bio-Composite for Degradation of Recalcitrant Organic Pollutants in Water

et al. 2022

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Photocatalysis is a promising process for decomposing harmful organic pollutants in water. In this study, solar/photocatalytic degradation of two model azo dyes, i.e., methylene blue (MB) and methyl red (MR), in water usinga nanostructured chitosan-modified nickel magnetite (CS-NM) bio-composite was investigated. The CS-NM bio-composite was synthesized through a co-precipitation method and characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), thermogravimetry (TGA), and UV-Vis spectroscopy. FTIR analysis showed the uniform incorporation and conjugation of nickel magnetite (NM) into the chitosan (CS) polymer matrix. SEM showed that the average particle size was 0.5 μm. The TGA results revealed the good thermal stability of the prepared bio-composite at 300 °C. The point of zero charge was calculated as 7.5. The effect of water quality and process parameters, such as concentration of dyes, catalyst dose, solution pH, and temperatures, was investigated, for application purposes. The solar/CS-NM photocatalysis resulted in 99 and 96% degradation of individual MB and MR (C0 = 50 ppm), respectively, in 90 min. The degradation of MB and MR by solar/CS-NM photocatalysis followed pseudo-first-order kinetics, with observed rate constants (k) of 0.077 and 0.072 min−1, respectively. The CS-NM photocatalyst showed high recyclability, represented by only a 4–6% loss in the photocatalytic efficiency, after four cycles. The results showed that solar/CS-NM photocatalysis is an efficient technique for degrading recalcitrant organic pollutants, such as azo dyes, in water environments.

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Acid fuchsin dosimeter: a potential dosimeter for food irradiation dosimetry

Cited by 12 publications

References 32 publications

Pristine and Magnetic Kenaf Fiber Biochar for Cd2+ Adsorption from Aqueous Solution

Pristine and Magnetic Kenaf Fiber Biochar for Cd2+ Adsorption from Aqueous Solution

Imino‐BODIPY‐Based, Highly Sensitive, Fluorescent Dosimeter for Low‐Dose Gamma Radiation**

Synthesis, Characterization, and Solar Photo-Activation of Chitosan-Modified Nickel Magnetite Bio-Composite for Degradation of Recalcitrant Organic Pollutants in Water

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