Synthesis of homogeneous one-dimensional Ni x Cd1−x S nanorods with enhanced visible-light response by ethanediamine-assisted decomposition of complex precursors
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A route to fabricate the homogeneous one-dimensional (1D) Ni x Cd1−x S nanorods (NRs) photocatalysts is designed with ethanediamine-assisted decomposition of Ni x Cd1−x (DDTC)2 complex precursors. This route developed Ni x Cd1−x (DDTC)2 complex precursors by co-precipitation method at room temperature condition. The effects of Ni2+ doped into CdS lattice on the length and photocatalytic performance of the Ni x Cd1−x S NRs have been investigated in detail. It is found that doping of Ni2+ significantly affects the aspect ratio of 1D Ni x Cd1−x S NRs. With the increasing doping concentration of Ni2+, the length of as-obtained Ni x Cd1−x S NRs becomes shorter. In addition, their photocatalytic activity was evaluated by the degradation of Rhodamine B dye as a probe reaction under visible-light irradiation. The results show that the optimal Ni2+ addition shows efficient photocatalytic performance and excellent photo stability, which may result from Ni2+ lattice doping. A tentative photocatalytic mechanism of 1D Ni x Cd1−x S NRs is proposed for further explanation of photocatalytic performance.
KeywordsPhotocatalytic Activity Photocatalytic Performance Complex Precursor Nickel Acetate Cadmium Acetate Dehydrate
This project was supported financially by the National Natural Science Foundation of China (Grant Nos. 51272107 and 51372118) and the Doctor Discipline Special Research Foundation of Chinese Ministry of Education (Grant No. 20133219110015).
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