ABSTRACT

Fabrication of the tri metal sulphide Al₂S₃-Cu₂S-Ni₁₇S₁₈ thin film was achieved by physical vapour deposition. The synthesised material was fully characterised by XRD, SEM, EDX, UV-visible spectrophotometer and FTIR. A nanoscale ranged 23.5 nm average crystallite size was obtained for the ternary metal sulphide. A motley of clustered morphological particles was observed by SEM with the confirmation of the desired metals through energy dispersive X-ray. Band gap energy possessed by the ternary metal sulphide was 2.5 eV. The remarkable energy storing capability of the electrode was investigated by cyclic voltammetry, which presented a supercapacitance of 595 F g⁻¹ expressing the pertinence of the synthesised material. Cycling stability of the nanoparticle thin film was also observed through the voltammetric analysis. Furthermore, the environmental applicability of the thin film was investigated by the photocatalytic degradation of pollutants with an impressive degradation rate constant 3.61 × 10⁻² min⁻¹ achieved for pesticide.

摘要

采用物理气相沉积法制备了三金属硫化物Al ₂ S ₃ -Cu ₂ S-Ni ₁₇ S ₁₈薄膜。通过 XRD、SEM、EDX、紫外可见分光光度计和 FTIR 对合成材料进行了全面表征。三元金属硫化物的纳米级平均微晶尺寸为 23.5 nm。通过 SEM 观察到杂色的簇状形态颗粒，并通过能量色散 X 射线确认了所需的金属。三元金属硫化物具有的带隙能为2.5eV。通过循环伏安法研究了该电极卓越的储能能力，其超级电容为595 F g ^-1表达合成材料的相关性。通过伏安分析还观察了纳米颗粒薄膜的循环稳定性。此外，通过光催化降解污染物来研究薄膜的环境适用性，农药的降解速率常数达到令人印象深刻的3.61 × 10 ^-2 min ^{-1 。}