Application of PANI/TiO2 Composite for Photocatalytic Degradation of Contaminants from Aqueous Solution

Lee, Youn-Jun; Lee, Hae Su; Lee, Changgu; Park, Seong‐Jik; Lee, Jechan; Jung, Seung-Ho; Shin, Gwy-Am

doi:10.3390/app10196710

Cited by 26 publications

(13 citation statements)

References 31 publications

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“…The polymer load can affect the thickness of the composite [49][50][51][52], its light absorp- Examples of ex situ processes are mixing the catalyst with a polymer and the hydrothermal process, which are illustrated in Figure 2c,d. During the direct mixing of the polymer with the catalyst nanoparticles, the polymer will cover the surface of the catalyst [45].…”

Section: Polymer Loadmentioning

confidence: 99%

“…The polymer load can affect the thickness of the composite [49][50][51][52], its light absorption capacity [49,53], the electron-hole pair recombination rate [49], the catalyst agglomeration [13,54,55], and the composite crystallinity [56].…”

Section: Polymer Loadmentioning

confidence: 99%

Section: Polymer Loadmentioning

confidence: 99%

“…Lee et al [50], Zhao et al [51], and Mohammed et al [52] studied catalyst/polyaniline (PANI) composite powders for dye degradation. Lee et al [50] evaluated the degradation of methylene blue (MB) and bisphenol A (BPA) with TiO 2 /PANI composites, produced by mixing the polymer and the nanoparticles, with different PANI contents (2, 4, 6, 8, 10 wt.%). Zhao et al [51] coated TiO 2 nanoparticles with different amounts of PANI by varying the aniline volume (1, 0.5, 0.25 mL) added to the polymerization medium and used the TiO 2 /PANI powder to degrade rhodamine B (RhB).…”

Section: Polymer Loadmentioning

confidence: 99%

“…Increasing the turbidity prevents light transmission and increases its scattering [70,72]. In addition, increasing the amount of composite can also cause agglomeration, which will reduce the amount of surface exposed to radiation and decrease the penetration depth of light, causing scattering, which lowers the light intensity entering the suspension [50,52,71]. Both phenomena affect light penetration and impede the catalyst activation, which ultimately decreases the degradation rate.…”

Section: Ph Valuementioning

confidence: 99%

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An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

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et al. 2022

Water

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In recent years, alarm has been raised due to the presence of chemical contaminants of emerging concern (CECs) in water. This concern is due to the risks associated with their exposure, even in small amounts. These complex compounds cannot be removed or degraded by existing technologies in wastewater treatment plants. Therefore, advanced oxidation processes have been studied, with the objective of developing a technology capable of complementing the conventional water treatment plants. Heterogenous photocatalysis stands out for being a cost-effective and environmentally friendly process. However, its most common form (with suspended catalytic particles) requires time-consuming and costly downstream processes. Therefore, the heterogeneous photocatalysis process with a supported catalyst is preferable. Among the available supports, polymeric ones stand out due to their favorable characteristics, such as their transparency, flexibility and stability. This is a relatively novel process; therefore, there are still some gaps in the scientific knowledge. Thus, this review article aims to gather the existing information about this process and verify which questions are still to be answered.

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Section: Polymer Loadmentioning

confidence: 99%

Section: Polymer Loadmentioning

confidence: 99%

Section: Polymer Loadmentioning

confidence: 99%

Section: Polymer Loadmentioning

confidence: 99%

Section: Ph Valuementioning

confidence: 99%

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An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

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Bioelectronic Applications of Intrinsically Conductive Polymers

Gao

Bao

Chen

et al. 2023

Adv Elect Materials

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Since the discovery of conducting polyacetylene in the 1970s, intrinsically conducting polymers (ICPs) have attracted great attention because of their interesting structure, properties, and applications. Notably different from conventional conductors such as metals and doped semiconductors, ICPs have high mechanical flexibility and are light weight. In addition, their properties can be easily tuned by controlling the doping level, modifying the chemical structure, or forming composites with organic or inorganic materials. Their application in bioelectronics is particularly interesting because they have good biocompatibility and good mechanical matching with biological tissues. In this article, the methods to increase the mechanical stretchability of ICPs are first reviewed because high stretchability is often required for bioelectronic applications while pristine ICPs generally have limited stretchability. The application of ICPs as stretchable electrodes for epidermal biopotential detection and neural interfaces is discussed. Then, the employment of ICPs as the electrodes or sensing material of mechanical sensors is reviewed. They also have important application in controllable drug delivery. Last, their applications in the wearable energy harvesting and storage devices including thermoelectric generators and supercapacitors are also covered.

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Fabrication of Symmetric Polyaniline/Nano‐Titanium Dioxide/Activated Carbon Supercapacitor Device in Different Electrolytic Mediums: Role of High Surface Area of Carbon and Facile Interactions with Nano‐Titanium Dioxide for High‐Performance Supercapacitor

2022

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During the past decade, the electrically redox conducting polymers (CPs) have been delivering high capacitance and lower cyclic life due to their unique charge storage mechanism. Along with many advantages of CPs (their high conductivity, fast charge and discharge, and high specific capacitance), the main shortcoming of using them as the supercapacitor electrodes alone is that they are unstable over long cycle runs. Using CPs for long cycle runs during the redox reactions can not only lead to material loss but can also cause fractures or even breaking of the polymer chains during the reaction. Development of these flaws over a period can eventually breakdown the electrode.Polyaniline (PANI) is a special class of CPs that has been thoroughly examined as a good emerging supercapacitor electrode due to its large pseudo-capacitance and intrinsic redox states. [1] But as with CPs, during the process of charging/ discharging, PANI electrodes result in degradation leading to poor cycle life. [2] One solution of this inadequacy is to integrate PANI with any metal oxide material (TiO 2 , MnO 2 , NiO, Co 3 O 4 , and V 2 O 5 ) and/or carbon materials (activated carbon (AC), carbon nanotubes (CNTs), and graphene). It is seen that the electrochemical properties of PANI become more pronounced when PANI is combined with nanostructured TiO 2 (nTiO 2 ). [3] Carbon materials like AC have also established themselves as anode materials and have played crucial roles in the energy storage field because of their cost-effectiveness, high chemical stability, and good conductivity. [4] AC with high surface area has augmented electron transport efficiency that can transport ions, which are essential for preparing the carbon-based supercapacitors. On one hand, where carbon-based electrodes have excellent cycling stability but less energy density, CPs on the other hand have good conductivity but less stability. Also, nTiO 2 has already been verified as a promising candidate for

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Application of PANI/TiO2 Composite for Photocatalytic Degradation of Contaminants from Aqueous Solution

Cited by 26 publications

References 31 publications

An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

Bioelectronic Applications of Intrinsically Conductive Polymers

Fabrication of Symmetric Polyaniline/Nano‐Titanium Dioxide/Activated Carbon Supercapacitor Device in Different Electrolytic Mediums: Role of High Surface Area of Carbon and Facile Interactions with Nano‐Titanium Dioxide for High‐Performance Supercapacitor

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