A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER

Porous hematite (a-Fe2O3) nanomaterials can be simply acquired from amorphous iron (III) hydroxide (Fe (OH) 3) in neutral solution by an evaporation method in an open quartz flask in a vacuum drying oven. Results show that the as-obtained a-Fe2O3 particles at 180°C for 2h or so are nearly spindle in...

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Autores principales:	HAN,CHENGLIANG, XIE,JINGSONG, DENG,CHONGHAI, ZHAO,DIFANG
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2012
Materias:	Hematite Thermal evaporation Porous structure Removal of Cr (VI)
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000400008
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spelling	oai:scielo:S0717-970720120004000082013-04-04A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATERHAN,CHENGLIANGXIE,JINGSONGDENG,CHONGHAIZHAO,DIFANG Hematite Thermal evaporation Porous structure Removal of Cr (VI) Porous hematite (a-Fe2O3) nanomaterials can be simply acquired from amorphous iron (III) hydroxide (Fe (OH) 3) in neutral solution by an evaporation method in an open quartz flask in a vacuum drying oven. Results show that the as-obtained a-Fe2O3 particles at 180°C for 2h or so are nearly spindle in shape. Each of a-Fe2O3 microspindles is made of many ultrafine a-Fe2O3 nanoparticles and results in a porous structure. The as-prepared porous a-Fe2O3 powders have higher surface area (~78m²/g) and can rapidly remove Cr (VI) ions in wastewater at room temperature. The model of the adsorption kinetic of Cr (VI) is best adapted to the pseudo second-order equation.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.57 n.4 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000400008en10.4067/S0717-97072012000400008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Hematite Thermal evaporation Porous structure Removal of Cr (VI)
spellingShingle	Hematite Thermal evaporation Porous structure Removal of Cr (VI) HAN,CHENGLIANG XIE,JINGSONG DENG,CHONGHAI ZHAO,DIFANG A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER
description	Porous hematite (a-Fe2O3) nanomaterials can be simply acquired from amorphous iron (III) hydroxide (Fe (OH) 3) in neutral solution by an evaporation method in an open quartz flask in a vacuum drying oven. Results show that the as-obtained a-Fe2O3 particles at 180°C for 2h or so are nearly spindle in shape. Each of a-Fe2O3 microspindles is made of many ultrafine a-Fe2O3 nanoparticles and results in a porous structure. The as-prepared porous a-Fe2O3 powders have higher surface area (~78m²/g) and can rapidly remove Cr (VI) ions in wastewater at room temperature. The model of the adsorption kinetic of Cr (VI) is best adapted to the pseudo second-order equation.
author	HAN,CHENGLIANG XIE,JINGSONG DENG,CHONGHAI ZHAO,DIFANG
author_facet	HAN,CHENGLIANG XIE,JINGSONG DENG,CHONGHAI ZHAO,DIFANG
author_sort	HAN,CHENGLIANG
title	A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER
title_short	A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER
title_full	A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER
title_fullStr	A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER
title_full_unstemmed	A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER
title_sort	facile synthesis of porous hematite nanomaterials and their fast sorption of cr (vi) in wastewater
publisher	Sociedad Chilena de Química
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000400008
work_keys_str_mv	AT hanchengliang afacilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT xiejingsong afacilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT dengchonghai afacilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT zhaodifang afacilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT hanchengliang facilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT xiejingsong facilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT dengchonghai facilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater AT zhaodifang facilesynthesisofporoushematitenanomaterialsandtheirfastsorptionofcrviinwastewater
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A FACILE SYNTHESIS OF POROUS HEMATITE NANOMATERIALS AND THEIR FAST SORPTION OF CR (VI) IN WASTEWATER

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