Comparative investigation on Visible Light-Driven Photocatalytic HER Activity Over Dye-sensitized ZnO/MoSX Catalysts

Year 2026, Volume: 15 Issue: 1 , 24 - 30 , 30.03.2026

Gizem Yıldız

https://doi.org/10.46810/tdfd.1793075

https://izlik.org/JA64TU38XT

Abstract

Sustainable hydrogen production from water holds significant promise for both addressing the energy crisis and mitigating climate change. Herein, a photocatalytic hydrogen production system was suggested, comprising of Eosin-Y (EY), Erythrosine-B (EB) as photo-sensitizer, ZnO photocatalyst, MoSx co-catalyst, and triethanolamine as a sacrificial agent. The characteristics properties and the photocatalytic hydrogen activities of the proposed catalysts were evaluated. Notably, the Eosin-Y sensitized ZnO/MoSx was exhibited the highest hydrogen activity, achieving as 5.27 mmol g-1 h-1 under visible light illumination. To investigate the dye effect, the comparative studies were also performed by using Eosin-Y and Erytrosine-B, and approximately 3.08 mmol g-1 h-1 hydrogen was achieved by using EB/ZnO/MoSx under the same conditions. In addition, the photocatalytic hydrogen mechanism of EY-sensitized ZnO/MoSx was also proposed and discussed. It is believed that this study can be a potential candidate for photocatalytic systems, providing innovative insights to explore the design of ZnO-based photocatalysts.

Keywords

Hydrogen production , Dye-sensitization , Zinc oxide , Molybdenum sulfide , Photocatalysis

Project Number

-

Boya Duyarlı ZnO/MoSX Katalizörleri Üzerinde Görünür Işık Karşısında Fotokatalitik HER Aktivitesinin Karşılaştırmalı Araştırması

https://izlik.org/JA64TU38XT

Abstract

Sürdürülebilir sudan hidrojen üretimi, hem enerji krizine çözüm bulmak, hem de iklim değişikliğiyle mücadele etme bakımından büyük bir potansiyel taşımaktadır. Bu çalışmada, Eosin-Y (EY), Erytrosin B (EB) fotohassaslaştırıcısı, ZnO fotokatalizörü, MoSx yardımcı katalizörü ve trietanolamin (TEOA) elektron vericisinden oluşan bir fotokatalitik hidrojen üretim sistemi önerilmiştir. Önerilen katalizörlerin karakteristik özellikleri ve fotokatalitik hidrojen üretim aktiviteleri değerlendirilmiştir. Özellikle, Eosin-Y ile hassaslaştırılmış ZnO/MoSx, görünür ışık aydınlatması altında 5.27 mmol g⁻¹ s⁻¹ düzeyinde en yüksek hidrojen üretim aktivitesini göstermiştir. Boyar madde etkisini araştırmak amacıyla, Eosin-Y ve Erytrosin-B kullanılarak karşılaştırmalı hidrojen çalışmaları da yapılmış ve aynı koşullar altında EB/ZnO/MoSx ile yaklaşık 3.08 mmol g⁻¹ s⁻¹ hidrojen üretimi elde edilmiştir. Ayrıca EY ile hassaslaştırılmış ZnO/MoSx sisteminin hidrojen üretim mekanizması önerilmiş ve tartışılmıştır. Bu çalışmanın, ZnO bazlı fotokatalizörlerin tasarımına yönelik yenilikçi bakış açıları sağlayarak, potansiyel bir fotokatalitik sistem adayı olabileceği düşünülmektedir.

Keywords

Hidrojen üretimi , Boya duyarlılığı , Çinko oksit , Molibden sülfür , Fotokataliz

Project Number

-

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