Effect of Binder Concentration and Dye Loading Time on Titania based Photoanode in DSSC Application

Jagtap, Chaitali V.; Kadam, Vishal S.; Mahadik, Mahadeo A.; Jang, Jum Suk; Chaure, Nandu B.; Pathan, Habib M.

doi:10.30919/es8d581

Cited by 8 publications

(6 citation statements)

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“…The interaction forces are broadly described as physisorption (physical adsorption) and chemisorption (chemical adsorption). [12]- [15] The purpose of the present study was to investigate the ability of CNTs prepared by physicochemical activation with hydrogen peroxide as the activating agent to remove paracetamol from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Adsorption of Paracetamol Drug on Carbon Nanotubes concerning Wastewater Treatment

Aljeboree¹,

Mahdi²,

Albahadly³

et al. 2022

Eng. Sci.

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It is essential to eliminate antibiotics from water due to their possible harm to living creatures and the growth of resistant microorganisms. The present study focuses on paracetamol inhibition utilizing carbon nanotubes (CNTs). Fourier transform infrared, field emission-scanning electron microscopy, and transmission electron microscopy techniques were used to study the fabricated CNTs' physical and chemical properties. Several concentrations of medication (10-100 mg L -1 ), pH solution (2.2-10.2), the weight of CNTs (0.002-0.08 g), and temperature solution (10-30 o C) were used to estimate the adsorption studies. The obtained results indicated that a concentration of 50 mg L -1 , a pH of 6.6, an adsorbent amount of 0.02 g, and a contact time of 2 h are optimal conditions for removing 95.40% of the drug from water. The results of the adsorption study indicate that the percentage of removal increases as the weight of the surfaces increases. The thermodynamic factors (∆G o ), (∆H o ), and (∆S o ) were estimated, and the negative values of ∆G o indicated that the removal method was spontaneous at various temperatures. The correlation coefficient value at R 2 = 0.98881 indicates that the adsorption method has high applicability concerning the second-order model. In contrast, the applicability of the first-order model and Elkovich equation are moderate, as indicated by the correlation coefficient values of R 2 = 0.70844 and R 2 = 0.84540, respectively. Based on the findings, the prepared CNTs may serve as a promising, environmentally friendly, cost-effective, and effective material for paracetamol drugs.

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Section: Introductionmentioning

confidence: 99%

Enhancement of Adsorption of Paracetamol Drug on Carbon Nanotubes concerning Wastewater Treatment

Aljeboree¹,

Mahdi²,

Albahadly³

et al. 2022

Eng. Sci.

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“…Appropriate photoactive materials are crucial for the construction of the PEC sensor. At present, a large variety of organic photoelectric molecules, inorganic nanomaterials, and conductive polymers were synthesized as photoactive materials. , Among the inorganic materials, TiO 2 is a widely used photoactive material due to its good biocompatibility, low cost, and easy preparation. − Nevertheless, TiO 2 alone is a wide bandgap (3.0–3.2 eV) semiconductor material and has a short visible light response range (<400 nm) and fast recombination rate of the photogenerated charge carriers, giving rise to a weak visible light excitation ability and photocurrent intensity . To address these shortcomings, coupling TiO 2 with other semiconductor materials with a suitable bandgap to construct a unique heterostructure is an ideal strategy for accelerating the separation of photogenerated carriers and enhancing the sunlight-harvesting ability, which can be attributed to the formation of the built-in electric field.…”

Section: Introductionmentioning

confidence: 99%

A Visible Light Driven Photoelectrochemical Chloramphenicol Aptasensor Based on a Gold Nanoparticle-Functionalized 3D Flower-like MoS₂/TiO₂ Heterostructure

et al. 2022

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Developing a photoactive material by combining the characteristics of a wide light response range and effective separation of photogenerated electron−hole pairs remains a huge challenge for the construction of a photoelectrochemical (PEC) sensing platform. Herein, a gold nanoparticle (AuNP)/MoS 2 /TiO 2 composite was prepared through the facile hydrothermal method coupled with an in situ photoreduction technology. Benefiting from both the compositional and structure merits, the composite not only extends the absorption range to visible light but also enhances the photoelectric conversion efficiency by transferring photogenerated electrons into the conduction band of semiconductors from the plasmonic AuNP. Meanwhile, the thiolated aptamers were attached to the surface of AuNP/MoS 2 /TiO 2 composites through the Au−S bonding to construct a visible light driven PEC aptasensor for ultrasensitive detection chloramphenicol (CAP). In the presence of CAP, the aptamers anchored on the surface of the photoactive materials could specifically recognize CAP and interact with it to form a bioaffinity complex with a steric hindrance effect, resulting in the rapid decrease of photocurrent responses. Based on this photocurrent suppression strategy, the constructed PEC aptasensing platform exhibited a high sensitivity with a wide linear range from 5 pM to 100 nM and a low detection limit of 0.5 pM.

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“…Titanium dioxide is a well-known and popular substance among researchers because of its features of chemical inertness, harmlessness, low price, and high stability. − Therefore, this semiconductor is used in many applications, especially photocatalytic degradation, which is essential nowadays because of the water crisis. − Nevertheless, the band gap of TiO 2 is in the ultraviolet region (anatase: 3.2 eV), which is its disadvantage because it limits the use of TiO 2 . Indeed, TiO 2 , only with UV light (5% of the solar spectrum), destroys water pollution such as dyes and the high electron–hole recombination rate. − Therefore, modifying TiO 2 is the most acceptable strategy, which helps TiO 2 receive more solar energy (visible, 40–50% of the sunlight spectrum) by reducing its band gap .…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Role of Noble Metal Nanoparticles (Pt and Pd) on the Photocatalytic Performance of the BaFe₁₂O₁₉/TiO₂ Magnetic Nanocomposite: Green Synthesis, Characterization, and Removal of Organic Dyes under Visible Light

Razavi

Ghanbari

Salavati‐Niasari

2022

Ind. Eng. Chem. Res.

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Adding noble metals and barium hexaferrite to TiO 2 creates novel magnetic plasmonic nanocomposites with high activity in the photodegradation of organic contaminants. In this work, we have synthesized BaFe 12 O 19 by microwave and sol−gel combustion (using green fuel, glucose) methods and TiO 2 by the sol−gel method. Then, noble metals (Pt and Pd) were deposited on BaFe 12 O 19 /TiO 2 by a reducing agent (glucose: green surfactant) under ultrasound waves. The samples were characterized. On the basis of XRD and SEM results, the composites are highly crystalline and impurity-free. TEM images and BET analysis indicated the samples have a suitable morphology. Furthermore, the magnetic analysis showed the addition of TiO 2 and noble metals to barium hexaferrite has led to the lower coercivity, but the synthesized nanocomposites still have the suitable magnetic properties (M sBaFe12O19/TiO2@Pt = 37, M sBaFe12O19/TiO2/Pd = 34, M rBaFe12O19/TiO2@Pt = 16, M rBaFe12O19/TiO2/Pd = 13.9 emu/g). UV−vis DRS spectra revealed the band gaps of BaFe 12 O 19 /TiO 2 @Pt and BaFe 12 O 19 /TiO 2 /Pd are 3.13 and 3.08 eV, respectively. Finally, BaFe 12 O 19 /TiO 2 @Pt and BaFe 12 O 19 /TiO 2 /Pd nanocomposites were used to degrade the anionic and cationic dyes under visible irradiation within 120 min. The highest percentage of degradation was related to methyl orange, around 96% and 92% by BaFe 12 O 19 /TiO 2 @Pt and BaFe 12 O 19 /TiO 2 /Pd, respectively. Indeed, Pt because of its high work function and electron affinity is more effective in photodegradation.

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Effect of Binder Concentration and Dye Loading Time on Titania based Photoanode in DSSC Application

Cited by 8 publications

References 0 publications

Enhancement of Adsorption of Paracetamol Drug on Carbon Nanotubes concerning Wastewater Treatment

Enhancement of Adsorption of Paracetamol Drug on Carbon Nanotubes concerning Wastewater Treatment

A Visible Light Driven Photoelectrochemical Chloramphenicol Aptasensor Based on a Gold Nanoparticle-Functionalized 3D Flower-like MoS₂/TiO₂ Heterostructure

Comparative Study on the Role of Noble Metal Nanoparticles (Pt and Pd) on the Photocatalytic Performance of the BaFe₁₂O₁₉/TiO₂ Magnetic Nanocomposite: Green Synthesis, Characterization, and Removal of Organic Dyes under Visible Light

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Effect of Binder Concentration and Dye Loading Time on Titania based Photoanode in DSSC Application

Cited by 8 publications

References 0 publications

Enhancement of Adsorption of Paracetamol Drug on Carbon Nanotubes concerning Wastewater Treatment

Enhancement of Adsorption of Paracetamol Drug on Carbon Nanotubes concerning Wastewater Treatment

A Visible Light Driven Photoelectrochemical Chloramphenicol Aptasensor Based on a Gold Nanoparticle-Functionalized 3D Flower-like MoS2/TiO2 Heterostructure

Comparative Study on the Role of Noble Metal Nanoparticles (Pt and Pd) on the Photocatalytic Performance of the BaFe12O19/TiO2 Magnetic Nanocomposite: Green Synthesis, Characterization, and Removal of Organic Dyes under Visible Light

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A Visible Light Driven Photoelectrochemical Chloramphenicol Aptasensor Based on a Gold Nanoparticle-Functionalized 3D Flower-like MoS₂/TiO₂ Heterostructure

Comparative Study on the Role of Noble Metal Nanoparticles (Pt and Pd) on the Photocatalytic Performance of the BaFe₁₂O₁₉/TiO₂ Magnetic Nanocomposite: Green Synthesis, Characterization, and Removal of Organic Dyes under Visible Light