Hierarchical Porous Activated Carbon from Wheat Bran Agro-Waste: Applications in Carbon Dioxide Capture, Dye Removal, Oxygen and Hydrogen Evolution Reactions.
Chempluschem
; 89(3): e202300373, 2024 Mar.
Article
en En
| MEDLINE
| ID: mdl-37909792
ABSTRACT
This work reports an efficient method for facile synthesis of hierarchically porous carbon (WB-AC) utilizing wheat bran waste. Obtained carbon showed 2.47â
mmol g-1 CO2 capture capacity with good CO2 /N2 selectivity and 27.35 to 29.90â
kJ mol-1 isosteric heat of adsorption. Rapid removal of MO dye was observed with a capacity of ~555â
mg g-1 . Moreover, WB-AC demonstrated a good OER activity with 0.35â
V low overpotential at 5â
mA cm-2 and a Tafel slope of 115â
mV dec-1 . It also exhibited high electrocatalytic HER activity with 57â
mV overpotential at 10â
mA cm-2 and a Tafel slope of 82.6â
mV dec-1 . The large SSA (757â
m2 g-1 ) and total pore volume (0.3696â
cm3 g-1 ) result from N2 activation contributing to selective CO2 uptake, high and rapid dye removal capacity and superior electrochemical activity (OER/HER), suggesting the use of WB-AC as cost effective adsorbent and metal free electrocatalyst.
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Banco de datos:
MEDLINE
Idioma:
En
Revista:
Chempluschem
Año:
2024
Tipo del documento:
Article
País de afiliación:
India