不同晶相MnS制备及光解H2S制氢性能研究

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采用溶剂热法成功制备了具有立方结构的α-Mn S和六方结构的γ-Mn S。通过X射线衍射(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM)、高分辨透射电镜(HRTEM)、选区电子衍射(SAED)和紫外-可见吸收光谱(UV-Vis),对样品的物相组成、显微形貌、光学性质进行了研究,并对不同晶相Mn S在可见光(λ〉420 nm)和全光谱下光解H2S制氢性能进行了研究。结果表明:α,γ-Mn S在可见光下都具有光解H2S制氢活性,且相比于热力学稳定相的α-Mn S(4.24μmol/(g·
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