TY - JOUR
T1 - Synthesis of multiwalled carbon nanotubes supported manganese and cobalt zinc oxides nanoparticles for the photodegradation of malachite green
AU - Zada, Noor
AU - Khan, Idrees
AU - Saeed, Khalid
N1 - Publisher Copyright:
© 2017 Taylor & Francis.
PY - 2017/5/24
Y1 - 2017/5/24
N2 - Multiwalled carbon nanotubes (MWNTs) supported and unsupported bimetallic zinc and manganese oxides nanoparticles (Zn–Mn NPs) were synthesized by wet chemical precipitation method. Zn–Mn and MWNTs/Zn–Mn oxides NPs were used as photocatalysts for the photodegradation of malachite green in aqueous medium under UV irradiation. The photodegradation study of malachite green was carried out by UV/vis spectrophotometer. The Mn–Zn and MWNTs/Mn–Zn oxides NPs degraded about 93% and 96% of dye, respectively, within 2 h of irradiation time. Effect of several parameters like time, pH, catalyst dosage and concentration of dye on the photocatalytic degradation was studied. The optimum conditions were obtained at pH 9 (93% dye degraded in 1.5 h), at 0.0435 g of catalyst (76.04% of dye degraded in 1 h), at 12.5 ppm dye concentration (88.41% dye degraded in 45 min). The activity of recovered catalyst was also examined.
AB - Multiwalled carbon nanotubes (MWNTs) supported and unsupported bimetallic zinc and manganese oxides nanoparticles (Zn–Mn NPs) were synthesized by wet chemical precipitation method. Zn–Mn and MWNTs/Zn–Mn oxides NPs were used as photocatalysts for the photodegradation of malachite green in aqueous medium under UV irradiation. The photodegradation study of malachite green was carried out by UV/vis spectrophotometer. The Mn–Zn and MWNTs/Mn–Zn oxides NPs degraded about 93% and 96% of dye, respectively, within 2 h of irradiation time. Effect of several parameters like time, pH, catalyst dosage and concentration of dye on the photocatalytic degradation was studied. The optimum conditions were obtained at pH 9 (93% dye degraded in 1.5 h), at 0.0435 g of catalyst (76.04% of dye degraded in 1 h), at 12.5 ppm dye concentration (88.41% dye degraded in 45 min). The activity of recovered catalyst was also examined.
KW - Bimetallic catalyst
KW - malachite green
KW - multiwalled carbon nanotubes
KW - photocatalytic degradation
UR - http://www.scopus.com/inward/record.url?scp=85015193439&partnerID=8YFLogxK
U2 - 10.1080/01496395.2017.1285920
DO - 10.1080/01496395.2017.1285920
M3 - Article
AN - SCOPUS:85015193439
SN - 0149-6395
VL - 52
SP - 1477
EP - 1485
JO - Separation Science and Technology (Philadelphia)
JF - Separation Science and Technology (Philadelphia)
IS - 8
ER -