High-energy treatment of sphagnum moss to produce carbon sorbents

Онищенко, Д. В.; Рева, В. П.

doi:10.3103/s1068364x12100079

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…For production of biochar there can be virtually used all types of biomass: sewage sludge [ 20 ], residues from the agricultural and food industries (e.g., rice husks, cotton stalks and nut shells [ 17 , 21 , 22 ], soybean husks [ 22 ], winter wheat at full maturity (grains and straw were pyrolyzed separately) and meadow grass [ 14 ], maple leaf [ 3 ], banana peels [ 23 ], cocoa tree ( Gliricidia sepium ) biomass [ 24 ], wastes of date palm [ 25 ] and oil palm shell [ 26 ], cork wastes [ 7 ], microalgae ( Spirulina sp.) [ 2 ] and macroalgal ( Eucheuma spinosum ) biomass [ 4 ]), energy plants (e.g., corn cobs, poplar ( Populus ), willow ( Salix ) [ 14 ]) and raw materials of forest origin (e.g., tree bark [ 17 , 21 , 27 , 28 , 29 ]), eucalyptus residues [ 27 ], sphagnum moss [ 17 , 21 , 30 , 31 ], mature acorns ( Quercus pubescens ) and mature cypress cones ( Cupressus sempervirens pyramidals ) [ 32 ], pine cones [ 33 , 34 ], larch cones ( Larix decidua Mill. Subsp.…”

Section: Introductionmentioning

confidence: 99%

“…The other method of chemical activation is impregnation of the carbon precursors or the obtained carbon adsorbents with the solutions of the above-mentioned chemical compounds. The process of biomass impregnation was conducted with phosphoric acid (V) using various precursors, e.g., bark [ 40 ], pine cones [ 41 ], brown sphagnum [ 31 ]. On the other hand, treatment with the acids: HCl and HNO 3 of mature acorns and cypress cones was applied in [ 32 ], while the activation of pine cones with NaOH was described in [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Physicochemical Properties of Spruce Cone Biochars Activated by CO2

Jedynak

Charmas

2021

Materials

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In this study the pyrolysis of Norway spruce cones, a lignocellulosic biomass was made. The biochar product was obtained by means of the physical activation method. CO2 was used as the activating gas. The surface properties of biochars were characterized by the nitrogen adsorption/desorption isotherms, scanning electron microscopy (SEM/EDS), X-ray fluorescence energy dispersion spectroscopy (ED-XRF), thermal analysis (TGA/DTA), infrared spectroscopy (ATR FT-IR), Raman spectroscopy and the Boehm’s titration method as well as the point of zero charge (pHpzc). The adsorption capacity and the possibility of ammonia desorption (TPD) were also examined. It has been shown that spruce cones can be successfully used as a cheap precursor of well-developed surface biochars, characterized by a large pore volume and good sorption properties. All obtained activated biochars exhibit a largely microporous structure and an acidic character surface. The investigated activated materials have the specific surface areas from 112 to 1181 m2 g−1. The maximum NH3 adsorption capacity of the activated biochar was determined to be 5.18 mg g−1 (88.22 mmol g−1) at 0 °C. These results indicate the applicability of spruce cones as a cheap precursor for the sustainable production of the cost-effective and environmentally friendly biochar adsorbent.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Physicochemical Properties of Spruce Cone Biochars Activated by CO2

Jedynak

Charmas

2021

Materials

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“…The properties of multilayer carbon nanotubes cre ated by the mechanical activation of amorphous car bon that, in turn, had been obtained from brown sph agnum moss, corn waste, cotton, and spiny bamboo were considered in [3][4][5][6][7][8]. Treatment in a planetary mill for 1-27 h was used for mechanical activation of the amorphous carbon.…”

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confidence: 99%