5,10,15,20-tetrakis(4-chlorophenyl)porphyrin decorated TiO2 nanotube arrays: Composite photoelectrodes for visible photocurrent generation and simultaneous degradation of organic pollutant

Cui, Han; Shao, Qian; Liu, Mei; Ge, Shengsong; Liu, Qingyun; Lei, Jing

doi:10.1016/j.mssp.2016.08.015

Cited by 26 publications

(14 citation statements)

References 45 publications

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“…TNT offered a higher light energy trapping than that of TiO 2 thin films. [65] Further, the photoelectrocatalytic activity of TNT can be tuned by tailoring their length. Among the TNT of different lengths, TNT with shorter length displayed much greater PEC activity; because the shorter TNT efficiently transferred the electrons more effectively than that of larger TNT ( Figure 6).…”

Section: Photoelectrocatalytic (Pec) Reduction Of Cr(vi)mentioning

confidence: 99%

Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Zhao

Lin

et al. 2018

The Chemical Record

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221

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Rapid industrialization leads to increased wastewater discharge encompassing hexavalent chromium (Cr(VI)), which leads to serious environmental problems of toxicity and potential carcinogenicity. Removal of these species is normally carried out by ion‐exchange, precipitation, membrane filtration, sorption, photocatalytic reduction, etc. This review mainly focuses on the photocatalytic and photoelectrocatalytic (PEC) reduction of Cr (VI), because of their advantages over other methods such as reduced risk of secondary pollution by non‐reduced Cr (VI), no sludge formation, no need for a large amount of chemical reagents, clean and easy installation. The main factors influencing the photocatalytic reduction efficiency of Cr (VI) such as catalyst activity, solution pH, Cr adsorption on the catalyst and additives, are briefly discussed. Finally, a special emphasis is provided to the photoelectrocatalytic (PEC) reduction of Cr (VI).

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Section: Photoelectrocatalytic (Pec) Reduction Of Cr(vi)mentioning

confidence: 99%

Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Zhao

Lin

et al. 2018

The Chemical Record

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221

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“…Recently, TNTs have been coupled with a wide range of materials types, such as metals, 4,5 and metal oxides. [6][7][8] Along with metallic materials, nonmetallic materials [9][10][11] have attracted numerous researchers to co-ordinate TNTs to compose unique products because of their good photoresponsibility and charge transports. Therein, TNTs were combined with conjugated polyvinyl chloride (cPVC) that could maximize its photocatalytic capabilities for environmental remediation in both gas and liquid phases under light irradiation and chemical erosion that thank to the conductive, inert, and stable properties of cPVC.…”

Section: Introductionmentioning

confidence: 99%

Preparation of conjugated polyvinyl chloride/TiO₂ nanotubes for Rhodamine B photocatalytic degradation under visible light

Bui

Pham

Cao

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND Efficient and stable photocatalysts are essential for the removal of organic dyes in wastewater. Here, the nanocomposites of conjugated polyvinyl chloride supported on hydrothermally synthesized titanium dioxide nanotubes (cPVC/TNTs) were fabricated by a simple annealing process. Their photocatalytic ability and reaction mechanisms were also investigated via degrading Rhodamine B (RhB) under different conditions. RESULTS The functional groups, instinct characteristic bonding, crystallinity, and morphology were characterized by the Fourier‐transform infrared spectroscopy (FTIR), Raman spectroscopy, X‐ray diffraction (XRD), and transmission electron microscopy (TEM), respectively. These results confirmed the success of nanocomposites preparation. In addition, the band energy structure of materials was investigated by electrochemical analysis (ECA) and ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS). The band structure and photocatalytic experiments showed that the 10% cPVC/TNTs could work under visible light and degrade 90% of RhB, while cPVC and TNTs lack this performance. The vital role of both electrons and holes were confirmed with the evidence obtained from the trapping experiment. CONCLUSION The combination of cPVC and TNTs significantly improved photocatalytic performance and stability. Their properties and reaction mechanisms were detailly described to further other research. © 2020 Society of Chemical Industry

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“…Many researchers synthesized novel porphyrins, introducing different functional groups with the aim to improve their sensitizing performances. A halogenated porphyrin with 4-chlorophenyl groups (H 2 TClPP) was adsorbed on a photoelectrode made of a TiO 2 nanotubes array [27], two porphyrins with carboxyl-functionalized phenyl groups were anchored to TiO 2 nanorods by a solvothermal procedure [28], hematoporphyrin was combined with N-doped TiO 2 [29], while sulfonated and fluorinated porphyrins with reactive -SO 3 H groups were conjugated on anatase TiO 2 nanoparticles [30,31]. All these works reported an enhanced visible light activity in the decomposition of dyes or other model pollutants or the inactivation of bacteria.…”

Section: Organic Dye-sensitized Tiomentioning

confidence: 99%

Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

2020

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Solar radiation is becoming increasingly appreciated because of its influence on living matter and the feasibility of its application for a variety of purposes. It is an available and everlasting natural source of energy, rapidly gaining ground as a supplement and alternative to the nonrenewable energy feedstock. Actually, an increasing interest is involved in the development of efficient materials as the core of photocatalytic and photothermal processes, allowing solar energy harvesting and conversion for many technological applications, including hydrogen production, CO2 reduction, pollutants degradation, as well as organic syntheses. Particularly, photosensitive nanostructured hybrid materials synthesized coupling inorganic semiconductors with organic compounds, and polymers or carbon-based materials are attracting ever-growing research attention since their peculiar properties overcome several limitations of photocatalytic semiconductors through different approaches, including dye or charge transfer complex sensitization and heterostructures formation. The aim of this review was to describe the most promising recent advances in the field of hybrid nanostructured materials for sunlight capture and solar energy exploitation by photocatalytic processes. Beside diverse materials based on metal oxide semiconductors, emerging photoactive systems, such as metal-organic frameworks (MOFs) and hybrid perovskites, were discussed. Finally, future research opportunities and challenges associated with the design and development of highly efficient and cost-effective photosensitive nanomaterials for technological claims were outlined.

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5,10,15,20-tetrakis(4-chlorophenyl)porphyrin decorated TiO2 nanotube arrays: Composite photoelectrodes for visible photocurrent generation and simultaneous degradation of organic pollutant

Cited by 26 publications

References 45 publications

Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Preparation of conjugated polyvinyl chloride/TiO₂ nanotubes for Rhodamine B photocatalytic degradation under visible light

Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

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5,10,15,20-tetrakis(4-chlorophenyl)porphyrin decorated TiO2 nanotube arrays: Composite photoelectrodes for visible photocurrent generation and simultaneous degradation of organic pollutant

Cited by 26 publications

References 45 publications

Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Preparation of conjugated polyvinyl chloride/TiO2 nanotubes for Rhodamine B photocatalytic degradation under visible light

Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

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Preparation of conjugated polyvinyl chloride/TiO₂ nanotubes for Rhodamine B photocatalytic degradation under visible light