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A new method using wastes and hydrothermal treatment for obtaining highly efficient PdS/Zn1-xCdxS-type photocatalysts for hydrogen production is presented. The use of a Cd precursor recovered from used battery wastes and of a one-step hydrothermal synthesis in a hermetic system (teflon autoclave) and relatively low temperature (up to 200°C) have provided a low-cost and ecological production of PdS/Zn1-xCdxS photocatalysts. The photocatalysts obtained by this method have good stability and relatively high efficiency which increases significantly with temperature (about 3.53 mmol/g∙h at 25°C, 3.77 mmol/g∙h at 40°C and 5.97 mmol/g∙h at 60°C under continuous 1.28 W irradiance)..
Photocatalyst, Solar hydrogen, CdS, Cd waste.
R. BANICA, P. SVERA, C. MOSOARCA, M. MICLAU, T. NYARI, D. URSU, New synthesis method of cheap and highly efficient PdS/Zn1-xCdxS-type photocatalysts for hydrogen production, Optoelectronics and Advanced Materials - Rapid Communications, 12, 9-10, September-October 2018, pp.613-616 (2018).
Submitted at: July 11, 2017
Accepted at: Oct. 10, 2018