TY - JOUR
T1 - Novel guar gum/Al2O3 nanocomposite as an effective photocatalyst for the degradation of malachite green dye
AU - Pathania, Deepak
AU - Katwal, Rishu
AU - Sharma, Gaurav
AU - Naushad, Mu
AU - Khan, Mohammad Rizwan
AU - Al-Muhtaseb, Ala'a H.
N1 - Funding Information:
The authors gratefully acknowledge the School of Chemistry, Shoolini University, India for providing the laboratory facilities. We also acknowledge to NIPER, Mohali, Punjab University, IIT Roorkee and Sultan Qaboos University for providing instrumental facilities for sample characterizations. The authors (M. Naushad & M.R. Khan) would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for funding this work through the Research Group No. RG-1437-004.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Guar gum/Al2O3 (GG/AO) nanocomposite was prepared using simple and cost effective sol-gel method. This nanocomposite was characterized by several analytical techniques viz. scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermal analysis (TGA/DTA), Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy (UV-vis). The FTIR analysis confirmed that GG/AO composite material was formed. TEM images inferred the particle size in the range between 20 and 45 nm. GG/AO nanocomposite exhibited good photocatalytic performance for malachite green (MG) dye (dye initial concentration 1.5 × 10-5 M) degradation from aqueous phase. The adsorption followed by photocatalysis and coupled adsorption/photocatalysis reaction achieved about 80% and 90% degradation of MG dye under solar irradiation. Antibacterial test showed the excellent activity of GG/AO nanocomposite against Staphylococcus aureus.
AB - Guar gum/Al2O3 (GG/AO) nanocomposite was prepared using simple and cost effective sol-gel method. This nanocomposite was characterized by several analytical techniques viz. scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermal analysis (TGA/DTA), Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy (UV-vis). The FTIR analysis confirmed that GG/AO composite material was formed. TEM images inferred the particle size in the range between 20 and 45 nm. GG/AO nanocomposite exhibited good photocatalytic performance for malachite green (MG) dye (dye initial concentration 1.5 × 10-5 M) degradation from aqueous phase. The adsorption followed by photocatalysis and coupled adsorption/photocatalysis reaction achieved about 80% and 90% degradation of MG dye under solar irradiation. Antibacterial test showed the excellent activity of GG/AO nanocomposite against Staphylococcus aureus.
KW - Antibacterial activity
KW - Dyes
KW - Nanocomposite
KW - Photodegradation
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U2 - 10.1016/j.ijbiomac.2016.02.073
DO - 10.1016/j.ijbiomac.2016.02.073
M3 - Article
C2 - 26944664
AN - SCOPUS:84960094083
SN - 0141-8130
VL - 87
SP - 366
EP - 374
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -