Construction of a Porphyrin-Based Nanohybrid as an Analogue of Chlorophyll Protein Complexes and Its Light-Harvesting Behavior Research

Abstract

Inspired by the spatial elaborate architecture and the kinetics characteristic of the nature photosynthesis, a nanohybrid of Au@THPP/CNTs with columnar-like shape has been prepared by a combination of the gold-4-hydroxyphenyl porphyrin nanohybrid of core–shell structure (Au@THPP) and vertically aligned carbon nanotubes (CNTs) grown on a transparent conducting substrate. A simplified model to uncover the partial electron transfer (ET) of photosystem II (PSII) using the nanohybrid by the chemical approach has been set up. The UV–vis/scanning electrochemical microscopy (UV–vis/SECM) platform, a simple, effective, and novel electrochemistry method, was used to investigate the behavior of photoinduced electron transfer of the model. At 560 nm wavelength, the heterogeneous electron transfer rate constant (k eff) of this model is the highest, which is consistent with the maximum absorption wavelength of a different chromophore achieved in photosynthesis. The model is not only of great value to study the complex photosynthesis but also of potential application in a biomimetic system.

A Z‐Scheme Strategy that Utilizes ZnIn2S4 and Hierarchical VS2 Microflowers with Improved Charge‐Carrier Dynamics for Superior Photoelectrochemical Water Oxidation

“…The conversion and storage of solar energy represents a challenging means of solving our ever‐increasing energy limitations and environmental problems . Of the different methods that have been developed for solar‐energy conversion, photoelectrochemical (PEC) water splitting, in which a semiconductor photoanode is used to transform solar energy into chemical energy by splitting water into hydrogen and oxygen, is the most promising . A wide variety of semiconductors have been tested as photoelectrodes, and hexagonal‐phase ZnIn 2 S 4 , which belongs to the IIB–IIIA–VIA group of sulfide materials, has been found to be a promising ternary chalcogenide semiconductor .…”

Nanoporous hierarchical carbon structures derived from fungal basidiocarps for high performance supercapacitors

“…The specific capacitance of GL‐cap‐800 and CI‐cap‐800 were significantly higher than those previously reported for other biomasses. For example, AC derived from ginkgo shell as a precursor showed a surface area of 1775 m 2 /g after graphitization at 900°C and a specific capacitance of 178 F/g, doped AC obtained from corncob showed surface area of 2859 m 2 /g and a specific capacitance of 185 F/g while those derived from rice husk had surface area of 2696 m 2 /g and capacitance of 147 F/g . These reported values were closer to GL‐stalk‐800 and CI‐stalk‐800.…”

Electrochemical Investigation of Porphyrin and Its Derivatives at Various Interfaces

“…PCT kinetics of this model was found to be dependent on the concentration of electrochemically active benzoquinone. This behavior resembles the role of plastoquinone in natural photosynthesis [43]. Porphyrin molecules loaded on the TiO 2 nanowire array grown on the ITO electrode by hydrothermal method.…”