The invention discloses a
rare earth elements co-doped
indium sulfide material as well as a preparation method and application thereof. The
indium sulfide material is formed in a way that
rare earth elements Yb and Tm are co-doped with
indium sulfide. The preparation method comprises the following steps: dissolving an indium source, an
ytterbium source, a
thulium source and a
sulfur source into water, so as to obtain
mixed solution; performing a
hydrothermal reaction on the obtained
mixed solution; and performing washing and
vacuum drying, so as to obtain the
rare earth elements co-doped indium sulfide material. The rare earth elements co-doped indium sulfide material has the advantages of narrow energy gap, wide
spectral response characteristic, and high photogenerated
charge separation efficiency; and the preparation method has the advantages of being simple in process, strong in
operability and low in production cost, being environment-friendly and
pollution-free. When the rare earth elements co-doped indium sulfide material is used for treating heavy
metal wastewater or dye
wastewater, the indium sulfide material has the advantages of being short in reaction time in a treatmentprocess, high in utilization efficiency of
solar energy, high in photocatalytic conversion efficiency, convenient in operation and the like, and therefore, the indium sulfide material can be widely applied to
elimination of
toxicity and harmless treatment for
heavy metals and dyes in the
wastewater and has great importance.