Adsorptive decolouration of anionic dye from water by goat dropping activated carbon prepared via microwave-assisted H3PO4 activation: process optimization using response surface methodology, isotherm and kinetics modelling

Khan, Tabrez Alam; Siddiqui, Mohammad Fuzail; Abbasi, Neha; Alharthi, Salman S.

doi:10.1007/s13399-022-02766-w

Cited by 26 publications

(2 citation statements)

References 44 publications

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“…With R 2 at 0.98 and R L value 0.027, the Langmuir isotherm model fits BL7-CNSs the best. A comparison of our investigated work maximum capacity results of MB and CBB with previously reported findings is given in Tables 6 and 7 respectively 47 – 54 .…”

Section: Resultssupporting

confidence: 52%

Enhancing the valorization of pulping black liquors in production effective aerogel–carbon nanostructure as adsorbents toward cationic and ionic dyes

Lotfy,

Basta

2024

Sci Rep

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This work deals with promoting the efficiency of removing the cationic and ionic dyes by new aerogel–carbon nanostructures. For cleaner production the rice straw-pulping black liquors, which regards serious environmental risk during routine disposing, is used in preparing the aerogel precursors. These aerogels (AGBs) depend on using pulping black liquor in hybrid with resorcinol and the less carcinogenic formaldehyde butyraldehyde. Black liquors from five pulping processes are used, Elemental, thermogravimetric (TGA and DTG), and FTIR-ATR analyses are used to characterize the carbon precursors. While their adsorption behavior toward cationic and anionic dyes are accessed via iodine-value, adsorption capacity and kinetic models, textural characterization, and SEM. The TGA measurements reveal that AGBs from BLs of neutral sulfite and soda-borohydride pulping reagents have higher activation and degradation energies than other aerogels. In terms of cationic and anionic dyes adsorption as well as textural characterization, the AGB-CNSs surpass that made from BLs. The discarded KOH/NH4OH black liquor is used to synthesize the best aerogel precursor for producing cationic methylene blue dye (MB) adsorbent, where it provides an adsorption capacity 242.1 mg/g. The maximum anionic brilliant blue dye (BB) adsorption capacity, 162.6 mg/g, is noticed by Kraft BL-aerogel-CNSs. These finding data overcome the literature carbon adsorbents based on lignin precursors. All examined CNSs toward MB dye follow the Langmuir adsorption equilibrium; while primarily the Freundlich model for BB dye. The pseudo-second-order kinetic model well fits the adsorption kinetics of investigated AGB-CNSs. The textural characterization and SEM revealed a mixture of mesoporous and micro porous features in the CNSs.

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Section: Resultssupporting

confidence: 52%

Enhancing the valorization of pulping black liquors in production effective aerogel–carbon nanostructure as adsorbents toward cationic and ionic dyes

Lotfy,

Basta

2024

Sci Rep

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“…Decolorization methods mainly includes adsorption-, ultrasonic-assisted, light-, enzyme-, and membrane-decolorization methods 8,9) . Of these, adsorption decolorization is most widely used in the edible oil industry.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Composite Decolorizer Efficacy Based on Decolorization Efficiency, Toxicity, and Nutritional Value of Rice Bran Oil

Sun,

Gao,

et al. 2023

J. Oleo Sci.

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development of this industry. Unrefined RBO contains free fatty acids, harmful substances, and pigments. The refining process consists of a series of purification steps 5) , of which decolorization is at the centerfold. Because the color of crude RBO is not appealing to consumers, its removal during refinement is essential. However, the decolorization process may result in the loss of nutrients such as sterols, oryzanol, and VE 6) , which should be retained in the final product. The oil refining process also produces harmful

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Classical and advanced isotherms to model the adsorption of drugs, dyes and metals on activated carbonaceous materials: a review

Mechnou,

Meskini,

Elqars

et al. 2024

Environ Chem Lett

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Adsorptive decolouration of anionic dye from water by goat dropping activated carbon prepared via microwave-assisted H3PO4 activation: process optimization using response surface methodology, isotherm and kinetics modelling

Cited by 26 publications

References 44 publications

Enhancing the valorization of pulping black liquors in production effective aerogel–carbon nanostructure as adsorbents toward cationic and ionic dyes

Enhancing the valorization of pulping black liquors in production effective aerogel–carbon nanostructure as adsorbents toward cationic and ionic dyes

Optimization of Composite Decolorizer Efficacy Based on Decolorization Efficiency, Toxicity, and Nutritional Value of Rice Bran Oil

Classical and advanced isotherms to model the adsorption of drugs, dyes and metals on activated carbonaceous materials: a review

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