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Papers by s barman
Chemosphere, 2020
Photocatalytic degradation of toxic pollutants is an efficient technique to completely remove the... more Photocatalytic degradation of toxic pollutants is an efficient technique to completely remove the toxic
pollutants from water bodies. In the present investigation, photocatalytic degradation of pollutants was
studied over porous g-C3N4/H-ZSM-5 nanocomposite under visible light irradiation. The composite g-
C3N4/H-ZSM-5 was synthesized by mixing an aqueous solution of H-ZSM-5 zeolite (increases surface
area and provides active sites for degradation) with melamine (precursor of g-C3N4) for 10e12 h followed
by calcinations at 550 C. The photocatalyst was characterized by XRD, BET, HRTEM, FESEM, EDS and
elemental mapping analysis. These techniques confirmed that, g-C3N4/H-ZSM-5 composite have layered
and porous structure with uniform distribution of g-C3N4 on H-ZSM-5 surface. The BET N2 adsorptiondesorption
analysis verified that the catalyst has high surface area (~175m2/g) having mesopores and
micropores. The prepared catalyst was then used for the photodegradation of a model dye, Methylene
Blue (MB) and an endocrine disrupting compound, Fipronil (FIP). Effects of various parameters such as
pH, catalyst dose and scavengers were also studied. The % photocatalytic degradation of MB and FIP were
around ~92% and ~84% with a high rate constants of 0.00997 and 0.00875 min1, respectively. From the
scavenger study, OH (hydroxyl radical) and radical was found to be the major reactive species for
MB and FIP degradation. From these studies it is revealed that, the catalyst is visible active, easy to
prepare and an efficient photocatalyst for toxic pollutant degradation.
© 2019
Chemosphere, 2020
Photocatalytic degradation of toxic pollutants is an efficient technique to completely remove the... more Photocatalytic degradation of toxic pollutants is an efficient technique to completely remove the toxic
pollutants from water bodies. In the present investigation, photocatalytic degradation of pollutants was
studied over porous g-C3N4/H-ZSM-5 nanocomposite under visible light irradiation. The composite g-
C3N4/H-ZSM-5 was synthesized by mixing an aqueous solution of H-ZSM-5 zeolite (increases surface
area and provides active sites for degradation) with melamine (precursor of g-C3N4) for 10e12 h followed
by calcinations at 550 C. The photocatalyst was characterized by XRD, BET, HRTEM, FESEM, EDS and
elemental mapping analysis. These techniques confirmed that, g-C3N4/H-ZSM-5 composite have layered
and porous structure with uniform distribution of g-C3N4 on H-ZSM-5 surface. The BET N2 adsorptiondesorption
analysis verified that the catalyst has high surface area (~175m2/g) having mesopores and
micropores. The prepared catalyst was then used for the photodegradation of a model dye, Methylene
Blue (MB) and an endocrine disrupting compound, Fipronil (FIP). Effects of various parameters such as
pH, catalyst dose and scavengers were also studied. The % photocatalytic degradation of MB and FIP were
around ~92% and ~84% with a high rate constants of 0.00997 and 0.00875 min1, respectively. From the
scavenger study, OH (hydroxyl radical) and radical was found to be the major reactive species for
MB and FIP degradation. From these studies it is revealed that, the catalyst is visible active, easy to
prepare and an efficient photocatalyst for toxic pollutant degradation.
© 2019
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Papers by s barman
pollutants from water bodies. In the present investigation, photocatalytic degradation of pollutants was
studied over porous g-C3N4/H-ZSM-5 nanocomposite under visible light irradiation. The composite g-
C3N4/H-ZSM-5 was synthesized by mixing an aqueous solution of H-ZSM-5 zeolite (increases surface
area and provides active sites for degradation) with melamine (precursor of g-C3N4) for 10e12 h followed
by calcinations at 550 C. The photocatalyst was characterized by XRD, BET, HRTEM, FESEM, EDS and
elemental mapping analysis. These techniques confirmed that, g-C3N4/H-ZSM-5 composite have layered
and porous structure with uniform distribution of g-C3N4 on H-ZSM-5 surface. The BET N2 adsorptiondesorption
analysis verified that the catalyst has high surface area (~175m2/g) having mesopores and
micropores. The prepared catalyst was then used for the photodegradation of a model dye, Methylene
Blue (MB) and an endocrine disrupting compound, Fipronil (FIP). Effects of various parameters such as
pH, catalyst dose and scavengers were also studied. The % photocatalytic degradation of MB and FIP were
around ~92% and ~84% with a high rate constants of 0.00997 and 0.00875 min1, respectively. From the
scavenger study, OH (hydroxyl radical) and radical was found to be the major reactive species for
MB and FIP degradation. From these studies it is revealed that, the catalyst is visible active, easy to
prepare and an efficient photocatalyst for toxic pollutant degradation.
© 2019
pollutants from water bodies. In the present investigation, photocatalytic degradation of pollutants was
studied over porous g-C3N4/H-ZSM-5 nanocomposite under visible light irradiation. The composite g-
C3N4/H-ZSM-5 was synthesized by mixing an aqueous solution of H-ZSM-5 zeolite (increases surface
area and provides active sites for degradation) with melamine (precursor of g-C3N4) for 10e12 h followed
by calcinations at 550 C. The photocatalyst was characterized by XRD, BET, HRTEM, FESEM, EDS and
elemental mapping analysis. These techniques confirmed that, g-C3N4/H-ZSM-5 composite have layered
and porous structure with uniform distribution of g-C3N4 on H-ZSM-5 surface. The BET N2 adsorptiondesorption
analysis verified that the catalyst has high surface area (~175m2/g) having mesopores and
micropores. The prepared catalyst was then used for the photodegradation of a model dye, Methylene
Blue (MB) and an endocrine disrupting compound, Fipronil (FIP). Effects of various parameters such as
pH, catalyst dose and scavengers were also studied. The % photocatalytic degradation of MB and FIP were
around ~92% and ~84% with a high rate constants of 0.00997 and 0.00875 min1, respectively. From the
scavenger study, OH (hydroxyl radical) and radical was found to be the major reactive species for
MB and FIP degradation. From these studies it is revealed that, the catalyst is visible active, easy to
prepare and an efficient photocatalyst for toxic pollutant degradation.
© 2019