Activated carbons derived from hydrothermal impregnation of sucrose with phosphoric acid: remarkable adsorbents for sulfamethoxazole removal

Shi, Yawei; Liu, Guozhu; Wang, Liang; Zhang, Hongwei

doi:10.1039/c9ra02610j

Cited by 34 publications

(9 citation statements)

References 45 publications

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“…During the activation process, the oligomerized H 3 PO 4 that become part of the carbon matrix transformed into P 2 O 5 and water. The sublimation of P 2 O 5 leads to the generation of pores; meanwhile, the evaporation of water molecules leads to the development of porosity [ 13 ]. On the other hand, KOH activation involves mainly fragmentation and solubilization of raw structure of precursor via a reduction reaction while leaving potassium-containing atoms within the carbon network.…”

Section: Resultsmentioning

confidence: 99%

Interconnected Micro, Meso, and Macro Porous Activated Carbon from Bacterial Nanocellulose for Superior Adsorption Properties and Effective Catalytic Performance

et al. 2020

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The porous carbon (bacterial cellulose (BC)-activated carbon (AC)(BA)) prepared via two-step activation of bacterial nanocellulose by treatments with potassium hydroxide (KOH) and then phosphoric acid (H3PO4) solutions showed superior adsorption properties and effective performance as catalyst support. BC-AC(BA) had an open and interconnected multi-porous structure, consisting of micropores (0.23 cm3/g), mesopores (0.26 cm3/g), and macropores (4.40 cm3/g). The BET surface area and porosity were 833 m2/g and 91.2%, respectively. The methylene blue adsorption test demonstrated that BC-AC(BA) was superior in its mass transfer rate and adsorption capacities. Moreover, BC-AC(BA) modified by H3PO4 treatment showed a significant enhancement of catalytic performance for dehydration of ethanol. At the reaction temperature of 250–400 °C, 30P/BC-AC(BA) gave ethanol conversion at 88.4–100%, with ethylene selectivity of 82.6–100%, whereas, high selectivity for diethyl ether (DEE) at 75.2%, at ethanol conversion of 60.1%, was obtained at the reaction temperature of 200 °C.

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Section: Resultsmentioning

confidence: 99%

Interconnected Micro, Meso, and Macro Porous Activated Carbon from Bacterial Nanocellulose for Superior Adsorption Properties and Effective Catalytic Performance

et al. 2020

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“…Based on XRD spectra, it can be seen that the charcoal activation process causes a shift towards a smaller angle. The shift in the angle indicates an increase in the distance between the layers (Shi et al, 2019) .…”

Section: Results Of Characterization Of Activated Charcoalmentioning

confidence: 99%

Utilization of Activated Charcoal from Sawdust as an Antibiotic Adsorbent of Tetracycline Hydrochloride

Wardani

Qudsi

Pratita

et al. 2021

sci. technol. indones.

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The use of activated charcoal from sawdust as an adsorbent of tetracycline hydrochloride compounds has been successfully carried out. Sawdust activated charcoal was carbonized at 450°C for 40 minutes with a charcoal size of 100 mesh and activated using H3PO4 solution. The characteristics of active sawdust charcoal showed that water content, iodine adsorption, and methylene blue adsorption had met SNI 06-3730-1995 regarding technical activated charcoal. Testing the morphology of charcoal using a Scanning Electron Microscope showed that the charcoal pores were opened through the activation process. In the functional group analysis test using infrared spectroscopy, the active group contained in charcoal after being activated contained carbon atoms that were purer than sawdust. The adsorption process of tetracycline hydrochloride using sawdust activated charcoal is known to follow Ho orPseudo second-order (K = 0.0039 g/mg.min), while the adsorption isotherm follows the Langmuir equation, KL = 0.0076 L/mg and adsorption capacity amounting to 242.1307 mg/g. Thermodynamically, the adsorption process occurs not spontaneously with a Gibbs free energy value of 120.8949 kJ/mol and occurs by chemisorption.

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“…Based on previous reports, 29,30 activation temperature and precursor type could greatly affect the adsorption performances of resulting carbons. The carbons prepared with three different precursors were employed for the adsorptive removal of SMX at a series of initial concentrations.…”

Section: Effect Of Precursor Type and Activation Temperature On Smx Amentioning

confidence: 94%

Heteroatom-doped highly porous carbons prepared by in situ activation for efficient adsorptive removal of sulfamethoxazole

et al. 2020

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Activated carbons derived from hydrothermal impregnation of sucrose with phosphoric acid: remarkable adsorbents for sulfamethoxazole removal

Abstract: Activated carbons obtained by hydrothermal impregnation of sucrose with H3PO4 for highly efficient sulfamethoxazole adsorption.

Cited by 34 publications

References 45 publications

Interconnected Micro, Meso, and Macro Porous Activated Carbon from Bacterial Nanocellulose for Superior Adsorption Properties and Effective Catalytic Performance

Interconnected Micro, Meso, and Macro Porous Activated Carbon from Bacterial Nanocellulose for Superior Adsorption Properties and Effective Catalytic Performance

Utilization of Activated Charcoal from Sawdust as an Antibiotic Adsorbent of Tetracycline Hydrochloride

Heteroatom-doped highly porous carbons prepared by in situ activation for efficient adsorptive removal of sulfamethoxazole

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