Search research articles

Related Concept Videos

Anoxygenic Photosynthesis

Anoxygenic Photosynthesis

Anoxygenic photosynthesis is a phototrophic process that captures light energy to drive carbon fixation without producing molecular oxygen. Unlike oxygenic photosynthesis, which utilizes water as an electron donor and releases oxygen, anoxygenic phototrophs use alternative electron donors such as hydrogen sulfide (H₂S), elemental sulfur (S⁰), or thiosulfate (S₂O₃²⁻). This process is carried out by diverse groups of bacteria, including purple bacteria, green...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Metalloporphyrin-based hybrid photocatalyst for bisphenol A degradation: kinetics, HRMS-based analysis of transformation products, and toxicity assessment.

RSC advances·2026

Same author

Metastatic Odyssey: Decoding the Genomic Journey from Primary Colorectal Cancer to Disseminated Disease.

Cancers·2026

Same author

Cyclo-(His-Phe) Complexes with Copper and Zinc Nanoparticles Have Antimicrobial Properties and Targeted Anticancer Potential Against Osteosarcoma Cells.

Biomolecules·2026

Same author

Modulation of Self-Assembly and Enhanced Photocatalytic H<sub>2</sub> Production by Porphyrin-Dipeptide Conjugates.

ChemSusChem·2025

Same author

Synergistic effect of porphyrin and NiO in chitosan/graphene oxide aerogels for enhanced photocatalytic degradation of cationic and anionic dyes.

RSC advances·2025

Same author

Dye-sensitized nanoparticles for efficient solar hydrogen generation.

Chemical communications (Cambridge, England)·2025

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jul 17, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

Highly efficient light-driven hydrogen evolution utilizing porphyrin-based nanoparticles.

Vasilis Nikolaou¹, Eleni Agapaki¹, Emmanouil Nikoloudakis¹

¹Laboratory of Bioinorganic Chemistry, Department of Chemistry, University of Crete, Voutes Campus, 70013 Heraklion, Crete, Greece. acoutsol@uoc.gr.

Chemical Communications (Cambridge, England)

|September 4, 2023

Summary

Researchers developed advanced dye-sensitized photocatalytic systems (DSPs) using porphyrins. These systems achieved record stability and hydrogen production, offering a promising advancement in photocatalysis.

More Related Videos

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

Light-driven Enzymatic Decarboxylation

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

Related Experiment Videos

Last Updated: Jul 17, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

Light-driven Enzymatic Decarboxylation

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

Area of Science:

Materials Science
Photocatalysis
Renewable Energy

Background:

Dye-sensitized photocatalytic systems (DSPs) are crucial for hydrogen production.
Porphyrins are effective photosensitizers but often lack stability.
Titanium dioxide nanoparticles (TiO2 NPs) are widely used photocatalysts.

Purpose of the Study:

To develop highly stable and active dye-sensitized photocatalytic systems (DSPs).
To investigate the use of porphyrins as both photosensitizers (PS) and photosensitizer-catalysts (PS/CAT).
To enhance photocatalytic performance by utilizing platinum-doped titanium dioxide nanoparticles (Pt-TiO2 NPs).

Main Methods:

Chemisorption of porphyrins onto platinum-doped titanium dioxide nanoparticles (Pt-TiO2 NPs).
Fabrication of dye-sensitized photocatalytic systems (DSPs) using porphyrin-based PS or PS/CAT entities.
Evaluation of hydrogen (H2) evolution activity and system stability (TONs).

Main Results:

DSPs coated with Pt-Tc3CP (PS/CAT entity) demonstrated exceptional stability with 25,500 TONs.
Achieved a record hydrogen evolution activity of 707 mmol g-1 h-1.
Outperformed previously reported DSPs in both stability and activity.

Conclusions:

Porphyrin-based PS/CAT entities chemisorbed onto Pt-TiO2 NPs significantly enhance DSP performance.
The developed DSPs represent a breakthrough in stable and efficient photocatalytic hydrogen production.
This work paves the way for practical applications of photocatalysis in renewable energy generation.