Carbohydrate-based activated carbon with high surface acidity and basicity for nickel removal from synthetic wastewater

Liu, Hai; Zhang, Jian; Ngo, Huu Hao; Guo, Wenshan; Wu, Haiming; Cheng, Cheng; Guo, Zizhang; Zhang, Chenglu

doi:10.1039/c5ra08987e

Cited by 19 publications

(6 citation statements)

References 51 publications

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“…The pseudo-second-order model (R2>0.99) represents the sorption kinetics better, indicating that the sorption process is controlled by chemisorption process. Similar observation was noted by (Liu et al, 2015).…”

Section: Adsorption Kineticssupporting

confidence: 89%

Modified Mangosteen shell carbon in the removal of Pb (II) and Hg (II) from aqueous solution-Isotherm and Kinetic studies

2021

Global NEST: The International Journal

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<p>An adsorbent was prepared from Mangosteen shell using sulphuric acid and sodium bicarbonate as modifiers. Bicarbonate treated mangosteen shell (BTMC) was characterized using FT- IR, SEM, EDAX and XRD data. The Freundlich adsorption isotherm model gives a good fit. The maximum adsorption capacities of BTMC were found to be 58.48 mg g-1 and 49.75 mg g-1 for Pb (II) and. Hg (II). Adsorption of Pb (II) and Hg (II) followed pseudo-second-order kinetics. The adsorption mechanism was explained using the Weber and Morris's intra-particular diffusion process. Batch mode studies with synthetic wastewater suggest that BTMC can be efficiently used in wastewater treatment.</p>

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Section: Adsorption Kineticssupporting

confidence: 89%

Modified Mangosteen shell carbon in the removal of Pb (II) and Hg (II) from aqueous solution-Isotherm and Kinetic studies

2021

Global NEST: The International Journal

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“…Some cracks and pores could be observed on the surface of the carbons. These broken bubbles reflected the formation of highly cross-linked structure, decomposition of phosphates, and release of radical species, as reported in our previous papers [16]. PA is a kind of strong acid, exhibited strong chelating ability with protein to form a partial de-polymerization.…”

Section: Morphology Of Activated Carbonssupporting

confidence: 76%

Microwave-assisted preparation and characterization of mesoporous activated carbon from mushroom roots by phytic acid (C6H18O24P6) activation

Cheng

Dai

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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The present study explored the viability of preparing activated carbon from phytic acid (PA, C6H18O24P6) activation of mushroom roots (MR) via microwave irradiation.Effects of impregnation ratio (IR, g PA: g MR of 1:1, 1.5:1, 2:1) and radiation power (600, 700 and 800 W) on porous activated carbon evolution were investigated. The surface area and porous property, surface morphology, and surface chemistry of activated carbons were investigated by nitrogen adsorption/desorption isotherms, scanning electron microscopy (SEM) and Boehm's titration. The yields obtained at all conditions were relatively high, from ~47% to ~59%. Well-developed mesoporous structure was prepared with the maximum surface area up to 1024 m 2 /g (IR=1.5:1, 800 W). With increasing IR, the mesoporous structure of the activated carbons was more developed, with Sext/Smic up to 95% at IR of 2. The produced activated carbons also showed favorable to surface chemistry with surface acidity higher than 1.85 mmol/g. The amounts of total surface functional groups were more approachable with IR increasing. These findings provide a strong evidence to support the potential of developing activated carbon alternatives from PA activation of MR via microwave irradiation.

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“…56 A sucrosederived activated carbon obtained by phosphoric acid activation has been reported to show a SSA of 460 m 2 g À1 . 57 A carbon derived from sucrose with ZnCl 2 activation shows a SSA of 1434 m 2 g À1 . 58 Activated carbons synthesized from sucrose with CO 2 activation show SSAs up to 2953 m 2 g À1 .…”

Section: Xps Analysismentioning

confidence: 99%

Nitrogen- and oxygen-containing activated carbons from sucrose for electrochemical supercapacitor applications

Subramanian

Viswanathan

2015

RSC Adv.

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Nitrogen-and oxygen-containing activated carbons have been synthesized from sucrose and ammonium nitrate (AN) by carbonization at different temperatures (600 -900 °C) under a flow of nitrogen gas with steam. A set of carbons have been synthesized without AN. The carbons have been characterized by using X-ray diffractometry (XRD), elemental analysis, solidstate 13 carbon nuclear magnetic resonance (NMR) spectroscopy, X-ray photoelectron spectroscopy (XPS), thermo-gravimetric analysis (TGA), di-nitrogen adsorption-desorption, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. Nitrogen from AN has been found to be incorporated into carbon samples. Electrochemical performances of the carbons have been studied in 1 M sulphuric acid using cyclic voltammetry and galvanostatic charge-discharge cycling. The use of AN favors the formation of carbons with higher surface areas and graphitic nature. One of the carbons with a BET surface area of 518 m 2 g -1 , a nitrogen content of 3 % and an oxygen content of 20.4 % shows a specific capacitance of 277 F g -1 . Carbons obtained using AN show better capacitance than the ones obtained without AN. Higher carbonization temperatures favor the formation of carbon with the higher capacitance values.

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Carbohydrate-based activated carbon with high surface acidity and basicity for nickel removal from synthetic wastewater

Cited by 19 publications

References 51 publications

Modified Mangosteen shell carbon in the removal of Pb (II) and Hg (II) from aqueous solution-Isotherm and Kinetic studies

Modified Mangosteen shell carbon in the removal of Pb (II) and Hg (II) from aqueous solution-Isotherm and Kinetic studies

Microwave-assisted preparation and characterization of mesoporous activated carbon from mushroom roots by phytic acid (C6H18O24P6) activation

Nitrogen- and oxygen-containing activated carbons from sucrose for electrochemical supercapacitor applications

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