Synthesis, Characterization and Photocatalytic Performance Of Modified Cd0.7Zn0.3S


Kaba İ., Kerkez Kuyumcu Ö.

11th International Conferance on New Trends in Chemistry, Bologna, İtalya, 26 - 28 Nisan 2025, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Bologna
  • Basıldığı Ülke: İtalya
  • Marmara Üniversitesi Adresli: Evet

Özet

CdxZn1-xS has gained significant attention due to its adjustable optical properties, making it a promising candidate for photocatalytic hydrogen production [1]. MoS2 is utilized as an additive in semiconductor photocatalysts because of its large surface area, ability to prevent charge recombination, low cost, high reactivity in the H2 evolution reaction, and enhanced sensitivity to visible light [2]. Transition metal carbides, such as Mo2C, are excellent electrocatalysts for hydrogen production and also function as effective cocatalysts for various photocatalysts [3]. In this study, Cd0.7Zn0.3S photocatalyst modified by MoS2/MoC-Mo2C was synthesized to achieve highly efficient photocatalytic H2 production and improve the stability of the photocatalyst. Hydrogen production was observed at a rate of 37 mmol g⁻¹ h⁻¹ with bare Cd0.7Zn0.3S nanorod. However, this rate increased 3.5-fold to 132 mmol g⁻¹ h⁻¹ for N-Cd0.7Zn0.3S/1% MoS₂ following the incorporation of MoS2. Furthermore, the N-Cd0.7Zn0.3S/1%MoS2/1%MoC-Mo2C composite, which was consistent with photoelectrochemical measurements, demonstrated a 4.5-fold increase in hydrogen production, reaching 168 mmol g⁻¹ h⁻¹.