02180nas a2200205   4500008004100000022001400041245012100055210006900176260011000245300001400355490000700369520134200376100002101718700001801739700001901757700001901776700002201795700002501817856013201842       2011                        eng d  a0959-942800aSelf assembled CdLa2S4 hexagon flowers, nanoprisms and nanowires: novel photocatalysts for solar hydrogen production0 aSelf assembled CdLa2S4 hexagon flowers nanoprisms and nanowires   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJAN  a2624-26310 v213 a<p>We report here a new ternary chalcogenide material, cadmium lanthanum sulfide (CdLa2S4) produced using a facile hydrothermal method at 433 K. The effect of the solvent on the morphology of the CdLa2S4 was demonstrated for the first time. The prima facie observations revealed the formation of highly crystalline hexagonal structures in the form of flowers in aqueous medium. The flowers comprise hexagonal columns similar to 300 nm in diameter and 1-1.2 mu m in length. All the hexagonal structures have a sharp tip with a cavity of 10 nm and are almost equal in size. The nanoprisms have an average base size of 35 nm with 35 nm edges, and the nanowires have a diameter of 10-15 nm; both were obtained in methanol. Crystal and electronic structure calculations were performed using the Vienna ab initio simulation package (VASP) based on density functional theory (DFT). Considering the band gap of pristine CdLa2S4 in the visible region (2.3 eV), we have demonstrated CdLa2S4 as a photocatalyst for the production of H-2 under solar light. Nanostructured CdLa2S4 prisms gave the maximum hydrogen production, i.e. 2552 mu mol h(-1). Being a stable ternary nanostructured metal sulfide (with nanohexagons, nanoprisms, nanowires), CdLa2S4 may have other potential prospective applications in solar cells and optoelectronic devices.</p>1 aKale, Bharat, B.1 aBaeg, Jin-Ook1 aKong, Ki-jeong1 aMoon, Sang-Jin1 aNikam, Latesh, K.1 aPatil, Kashinath, R.  uhttps://library.ncl.res.in/content/self-assembled-cdla2s4-hexagon-flowers-nanoprisms-and-nanowires-novel-photocatalysts-solar-0