“…This tunable property renders the ternary compound a promising candidate in many applications, including photocatalytic hydrogen production (Yu et al, 2010), biotechnology (Liu et al, 2007), photovoltaic devices (Gunasekaran et al, 2006), field emitting devices (Lin et al, 2007), chemical sensors (Lui et al, 2006), and light-emitting devices (Yang & Holloway, 2003;Wood et al, 2009;Anikeeva et al, 2009), etc. Therefore, over the past decade, various Cd x Zn 1Àx S nanomaterials have been produced, such as Cd x Zn 1Àx S nanoparticles (Kulkarni et al, 2001;Raymond et al, 2003;Fang et al, 2010;Kang et al, 2012;), Cu-doped Cd x Zn 1Àx S quantum dots (Kim et al, 2010), coreshell InAs(ZnCdS) and core-shell CdSe (ZnCdS) quantum dots (Liu et al, 2007;Allen et al, 2010), Cd x Zn 1Àx S nanorods (Zhang et al, 2007a, b), and coaxial Cd x Zn 1Àx SÀZnS nanowires (Hsu et al, 2005;Liu & Zhu 2008), etc. Despite the tunable electronic and optical properties of the Cd x Zn 1Àx S, the practical application of the Zn 1Àx Cd x S is greatly limited in view of corrosion by acids and oxygen.…”