Gamma-radiation induced decolorization and degradation on aqueous solutions of Indigo Carmine dye

2018 ◽  
Vol 317 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Amira Zaouak ◽  
Ahlem Noomen ◽  
Haikel Jelassi
Keyword(s):  
Gamma Radiation ◽  
Aqueous Solutions ◽  
Indigo Carmine ◽  
Radiation Induced ◽  
Indigo Carmine Dye

scholarly journals Preparation, characterization of fish scales biochar and their applications in the removal of anionic indigo carmine dye from aqueous solutions

2019 ◽  
Vol 80 (11) ◽  
pp. 2218-2231
Author(s):  
George O. Achieng ◽  
Chrispin O. Kowenje ◽  
Joseph O. Lalah ◽  
Stephen O. Ojwach
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solutions ◽  
Adsorption Process ◽  
Indigo Carmine ◽  
Thermo Gravimetric Analysis ◽  
Gravimetric Analysis ◽  
Fish Scale ◽  
Solution Ph ◽  
X Ray ◽  
Indigo Carmine Dye

Abstract The preparation and applications of Tilapia (Oreochromis niloticus) fish scale biochars (FSB) as an adsorbent in the removal of indigo carmine dye (ICD) from aqueous solutions is described. The biochars were prepared through pyrolysis over a temperature range of 200 °C–800 °C and characterized for surface charge, functional groups, thermal stability, particle size and morphology, elemental composition, crystallinity, and surface area by using pHpzc, Fourier transform infrared (FTIR) spectroscopy, thermo-gravimetric analysis (TGA), transmission electron microscopy/scanning electron microscopy (TEM/SEM), energy dispersive X-ray (EDX) spectroscopy, powder X-ray diffraction (PXRD) and Brunauer-Emmett-Teller (BET) techniques, respectively. Batch experiments were carried out to determine the variation of adsorption process with initial dye concentration, contact time, initial solution pH, adsorbent load, temperature and adsorbent pyrolysis temperature on the removal of the dye. The percentage removal increased with increase in initial dye concentration and adsorbent dosage. A pH of 2 was the most appropriate for the adsorption experiments. The equilibrium data fitted pseudo-first-order kinetics and Freundlich models, while the thermodynamic parameters confirmed that the adsorption process was endothermic.

scholarly journals Investigation of an adsorbent based on novel starch/chitosan nanocomposite in extraction of indigo carmine dye from aqueous solutions

2020 ◽  
Vol 10 (3) ◽  
pp. 5556-5563 ◽  
Keyword(s):  
Electron Microscope ◽  
Aqueous Solutions ◽  
Corn Starch ◽  
Fourier Transforms ◽  
Indigo Carmine ◽  
High Yield ◽  
Free Gibbs Energy ◽  
Starch Nanoparticles ◽  
Indigo Carmine Dye ◽  
Sorption Parameters

Treatment of corn starch using pullulanase to prepare high yield of starch nanoparticles (StNPs) in a short time is one of the best ways of green industry of StNPs in comparison with other preparation procedures. Morphology of surface, particle size, function groups behavior and crystalline structure were investigated by using Scanning electron microscope (SEM), Dynamic light scattering (DLS), Transmission electron microscope (TEM), Fourier transforms infrared spectroscopy and X-ray diffraction. Starch nanoparticles can be used with chitosan to generate a novel composite to remove dyes from aqueous solutions. Indigo carmine dye was remediated with chitosan starch nanoparticle composite to evaluate the adsorption efficiency of such composite. Batch experiments were done to check the optimum pH, contact time, adsorbent dose, initial dye concentration and temperature to assess the kinetic data from isotherm of adsorption. The obtained results are fitted with pseudo second order and Langmuir isotherms. Free Gibbs energy (∆G°), enthalpy (∆H°) and entropy (∆S°) of the sorption parameters indicated spontaneous and endothermic adsorption process.

Removal of acidic indigo carmine textile dye from aqueous solutions using radiation induced cationic hydrogels

2010 ◽  
Vol 61 (8) ◽  
pp. 2097-2104 ◽  
Author(s):  
Müfrettin Murat Sari
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Congo Red ◽  
Indigo Carmine ◽  
Textile Dye ◽  
Ethyl Methacrylate ◽  
Effects Of Ph ◽  
Langmuir Isotherm Model ◽  
Radiation Induced ◽  
Cationic Hydrogels

This study examined the removal of acidic indigo carmine dyes from aqueous solutions using cationic hydrogels. Irradiated hydrogels were investigated as a new sorbent for dye removal from aqueous solution. Poly(N,N-Diethylamino ethyl methacrylate) [poly(DEAEMA)] hydrogels were prepared by radiation polymerisation of N,N-diethylamino ethyl methacrylate [DEAEMA] monomer in the presence of cross-linking agent, ethylene glycol dimethacrylate [EGDMA], and used for the removal of acidic indigo carmine textile dye. The adsorption of dyes was examined using a batch sorption technique. The effects of pH, time and initial dye concentration on the adsorption capacity of hydrogels were investigated. Maximum gelation ratio was 98.2% at irradiation dose of 5.3 kGy. Maximum equilibrium volume swelling, V/V0, value was 21.3 at pH 2.8. Maximum amount of adsorbed indigo carmine onto hydrogels was 96.7 mg dye/g gel at pH 2.8, 21 h of adsorption time and 120 mg/L initial dye solution. Swelling and adsorption capacity increased with decreasing of pH. Compared with Congo red, amounts of adsorbed indigo carmine are much higher than those of Congo red. Langmuir isotherm model was the best fit for these poly(DEAEMA) hydrogels-indigo carmine systems.

RADIATION-INDUCED DECOMPOSITION AND POLYMERIZATION OF POLYVINYL ALCOHOL IN AQUEOUS SOLUTIONS

2013 ◽  
Vol 12 (7) ◽  
pp. 1323-1328 ◽  
Author(s):  
Lujun Chen ◽  
Weihua Sun ◽  
Jinping Tian ◽  
Jianlong Wang ◽  
Shijun He
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Radiation Induced ◽  
Induced Decomposition

Gamma Radiation Induced Effects on Cefuroxime and Cefotaxime. Investigation on Degradation and Syn-Anti Isomerization

1994 ◽  
Vol 20 (16) ◽  
pp. 2493-2508 ◽  
Author(s):  
E. Ciranni Signoretti ◽  
L. Valvo ◽  
P. Fattibene ◽  
S. Onori ◽  
M. Pantaloni
Keyword(s):  
Gamma Radiation ◽  
Radiation Induced
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