Superior Photocatalytic Efficiency with Titania (TiO2)-Polyaniline (PANI) Nanocomposite for Rapid Carbol Fuchsin (CF) Dye Degradation

被引:3
作者
Ahire, Satish Arvind [1 ]
Bachhav, Ashwini Ashok [2 ]
Jagdale, Bapu Sonu [3 ]
Pawar, Thansing Bhavsing [3 ]
Koli, Prashant Bhimrao [4 ]
Sanap, Dnyaneshwar Suryabhan [5 ]
Patil, Arun Vitthal [6 ]
机构
[1] Savitribai Phule Pune Univ, Maharaja Sayajirao Gaikwad Arts Sci & Commerce Col, Dept Chem, Pune, MH, India
[2] Savitribai Phule Pune Univ, MVPs Coll Pharm, Pune, MH, India
[3] Savitribai Phule Pune Univ, Loknete Vyankatrao Hiray Arts Sci & Commerce Coll, Dept Chem, Pune, MH, India
[4] Savitribai Phule Pune Univ, NM Sonawane Arts Commerce & Sci Coll, Dept Chem, Pune, MH, India
[5] Savitribai Phule Pune Univ, KPG Arts Commerce & Sci Coll, Dept Chem, Igatpuri 422403, Maharashtra, India
[6] Savitribai Phule Pune Univ, Arts Sci & Commerce Coll, Dept Phys, Pune, MH, India
关键词
TiO2-PANI nanocomposite; Carbol fuchsin dye; TEM; Water purification; Scavenging study; TIO2; NANOPARTICLES; SEMICONDUCTOR PHOTOCATALYSTS; COMPOSITE NANOTUBES; POLYANILINE; OXIDATION; ANATASE; OXIDE;
D O I
10.22068/ijmse.3511
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Hybrid photocatalysts, comprising both inorganic and organic polymeric components are the most promising photocatalysts for the degradation of organic contaminants. The nanocomposite, Titania-Polyaniline (TiO2-PANI) was synthesized using the chemical oxidative polymerization method. Various characterization techniques were employed to assess the properties of the catalysts. The ultraviolet diffuse reflectance spectroscopy (UV -DRS) analysis revealed that the TiO2 absorbs only UV light while the TiO2-PANI nanocomposite absorbs light from both UV and visible regions. The X-ray diffraction (XRD) results confirmed the presence of TiO2 (anatase) in both TiO2 nanoparticles and TiO2-PANI (Titania-Polyaniline) nanocomposite. The phases of the catalysts were verified through Raman, TEM, and SAED techniques where all results are in good agreement with each other. The average crystallite size of TiO2 nanoparticle and TiO2-PANI nanocomposite were 13.87 and 10.76 nm. The thermal stability of the catalysts was assessed by the Thermal gravimetric analysis (TGA) technique. The order of the thermal stability is TiO2 >TiO2 -PANI >PANI. The crystal lattice characteristics were confirmed using Transmission electron microscopy (TEM). The surface area measurements were confirmed from the Brunauer-Emmett-Teller (BET) study and were employed for the evaluation of the photocatalytic efficiency of both, TiO2 nanoparticles and TiO2-PANI nanocomposite catalysts. The energy dispersive spectroscopy (EDS) study was employed for elemental detection of the fabricated materials. Raman spectroscopy was employed for the chemical structure and the phase characteristics of the materials. The standard conditions for the degradation of the CF dye were 8 g/L of catalyst dosage, 20 mg/L of dye concentration, and a pH of 7. The TiO2-PANI nanocomposite exhibited superior efficiency as compared to pure TiO2 nanoparticles, achieving almost 100% degradation in just 40 minutes.
引用
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页数:19
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