Visible-light responsive organic nano-heterostructured photocatalysts for environmental remediation and H2 generation

Chen, Yingzhi; Jiang, Dongjian; Gong, Zhengqi; Li, Qinglin; Shi, Ranran; Yang, Zhen; Lei, Ziyi; Li, Jingyuan; Wang, Luning

doi:10.1016/j.jmst.2019.09.003

Cited by 32 publications

(8 citation statements)

References 107 publications

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“…A recent review outlines the photocatalytic performance of other porphyrin-based/carbon nano-heterostructures among other materials. [165] Porphyrins can organize themselves in different supramolecular structures upon conjugation to GO. Recently, Ma et al reported the preparation of composite thin-films based on TMPyP and surface-modified GO using a Langmuir-Blodgett (LB) technique to assemble both components by promoting electrostatic and π-π stacking interactions.…”

Section: Tgamentioning

confidence: 99%

Functionalization of Graphene Oxide with Porphyrins: Synthetic Routes and Biological Applications

2020

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Among the available carbon nanomaterials, graphene oxide (GO) has been widely studied because of the possibility of anchoring different chemical species for a large number of applications, including those requiring water‐compatible systems. This Review summarizes the state‐of‐the‐art of synthetic routes used to functionalize GO, such as those involving multiple covalent and non‐covalent bonds to organic molecules, functionalization with nanoparticles and doping. As a recent development in this field, special focus is given to the formation of nanocomposites comprising GO and porphyrins, and their characterization through spectroscopic techniques (such as UV‐Vis, fluorescence, Raman spectroscopy), among others. The potential of such hybrid systems in targeted biological applications is also discussed, namely for cancer therapies relying on photodynamic and photothermal therapies and for the inhibition of telomerase enzyme. Lastly, some promising alternative materials to GO are presented to overcome current challenges of GO‐based research and to inspire future research directions in this field.

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Section: Tgamentioning

confidence: 99%

Functionalization of Graphene Oxide with Porphyrins: Synthetic Routes and Biological Applications

2020

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“…They have a broader light absorbance in the visible region. Their molecular and photoelectrical properties can be flexibly and precisely tuned by molecular structure design. − Recently, organic photocatalysts have received much attention for H 2 evolution, ,− H 2 O 2 evolution, − O 2 evolution, and overall water splitting. , However, it is hard to design an organic-based bifunctional photocatalyst to produce H 2 and H 2 O 2 under visible light without any sacrificial agents and organic solvents. − …”

Section: Introductionmentioning

confidence: 99%

Organic Semiconductor/Carbon Dot Composites for Highly Efficient Hydrogen and Hydrogen Peroxide Coproduction from Water Photosplitting

Zhao

et al. 2021

ACS Appl. Mater. Interfaces

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Coproduction of hydrogen (H 2 ) and hydrogen peroxide (H 2 O 2 ) from water splitting is one of the most promising ways to alleviate the energy crisis and environmental pollution. Here, we first show the synthesis and photocatalytic property of an organic semiconductor (DAnTMS compound) from 9,10-dibromoanthracene and trimethylsilylacetylene. Then, a metal-free photocatalyst of a DAnTMS/carbon dot (DAnTMS/CD) composite was designed and fabricated, which achieved the efficient photocatalytic production of H 2 and H 2 O 2 without usage of any organic solvents and sacrificial agents. Under visible light, the DAnTMS/CD composite could produce H 2 O 2 with a maximum rate of 396.7 μmol g −1 h −1 and H 2 with a maximum rate of 265.0 μmol g −1 h −1 in pure water. Transient photovoltage tests showed that CDs changed the interfacial electron transfer kinetics and served as the active site for highly efficient H 2 evolution. This work provided a deep insight into the function of CDs in regulating the catalytic property of organic photocatalysts.

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“…Porphyrinoids are a class of compounds with distinctive structural, photochemical, and photophysical properties [ 30 ] to be used for a wide range of applications such as (chemo)sensors [ 31 , 32 , 33 , 34 , 35 ], (photo)catalysts [ 36 , 37 , 38 , 39 , 40 , 41 ], environmental protection [ 42 , 43 , 44 ], dyes for solar cells [ 45 , 46 , 47 , 48 ], and as PSs in medicine [ 21 , 49 , 50 , 51 , 52 , 53 ]. Regarding the latter use, porphyrinoids exhibit suitable features such as chemical and structural stability, good 1 O 2 generation capabilities, high fluorescence quantum yields, absorbance in the visible region of the electronic spectrum, no dark toxicity, and high affinity for cancer cells making them the most exploited class of compounds as PSs for PDT [ 15 , 54 ].…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Photodynamic Activity of Cationic Benzoporphyrin-Based Photosensitizers against Bladder Cancer Cells

et al. 2021

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In this study, we report the preparation of new mono-charged benzoporphyrin complexes by reaction of the appropriate neutral benzoporphyrin with (2,2′-bipyridine)dichloroplatinum(II) and of the analogs’ derivatives synthesized through alkylation of the neutral scaffold with iodomethane. All derivatives were incorporated into polyvinylpyrrolidone (PVP) micelles. The ability of the resultant formulations to generate reactive oxygen species was evaluated, mainly the singlet oxygen formation. Then, the capability of the PVP formulations to act as photosensitizers against bladder cancer cells was assessed. Some of the studied formulations were the most active photosensitizers causing a decrease in HT-1376 cells’ viability. This creates an avenue to further studies related to bladder cancer cells.

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Visible-light responsive organic nano-heterostructured photocatalysts for environmental remediation and H2 generation

Cited by 32 publications

References 107 publications

Functionalization of Graphene Oxide with Porphyrins: Synthetic Routes and Biological Applications

Functionalization of Graphene Oxide with Porphyrins: Synthetic Routes and Biological Applications

Organic Semiconductor/Carbon Dot Composites for Highly Efficient Hydrogen and Hydrogen Peroxide Coproduction from Water Photosplitting

Unraveling the Photodynamic Activity of Cationic Benzoporphyrin-Based Photosensitizers against Bladder Cancer Cells

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