Cu<sub>2</sub>ZnSnS<sub>4</sub>‑Pt and Cu<sub>2</sub>ZnSnS<sub>4</sub>‑Au Heterostructured Nanoparticles\nfor Photocatalytic Water Splitting and Pollutant Degradation
Xuelian Yu (336275)Alexey Shavel (1494421)Xiaoqiang An (1477414)Zhishan Luo (1494445)Maria Ibáñez (1429519)Andreu Cabot (1494442)
Abstract
Cu<sub>2</sub>ZnSnS<sub>4</sub>, based on abundant and environmental\nfriendly elements and with a direct band gap of 1.5 eV, is a main\ncandidate material for solar energy conversion through both photovoltaics\nand photocatalysis. We detail here the synthesis of quasi-spherical\nCu<sub>2</sub>ZnSnS<sub>4</sub> nanoparticles with unprecedented\nnarrow size distributions. We further detail their use as seeds to\nproduce CZTS-Au and CZTS-Pt heterostructured nanoparticles.\nSuch heterostructured nanoparticles are shown to have\nexcellent photocatalytic properties toward degradation of Rhodamine\nB and hydrogen generation by water splitting.
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