XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 689
composite photocatalysts and the degradation of xanthates.
Firstly, the clinoptilolite used as support can restrain the
crystallite size of catalysts and regulate their microstructure
to influence the photocatalytic activity. Secondly, the intro-
duction of clinoptilolite can endow the composites with
outstanding adsorption ability to concentrate the xanthates
on the photocatalyst surface and thus promote the degrada-
tion rate. Moreover, the clinoptilolite can act as an electron
acceptor to delay the recombination of photoinduced e−/
h+ pairs [20].
CONCLUSIONS
TC binary composite photocatalysts were first synthesized
by using hydrothermal method. The structural character-
ization results demonstrate that anatase TiO2 nanoparticles
are well-dispersed on the clinoptilolite surface. The obtained
TC composited show excellent xanthate degradation per-
formance under UV irradiation. Then, Ag nanoparticles,
MoS2 and BiOCl nanosheets were prepared to modify the
TC to further expand its spectral response range to vis-
ible light. Among three ternary composite photocatalysts,
BTC exhibits the optimal xanthates degradation efficiency.
The excellent xanthates removal efficiencies of all compos-
ite photocatalysts were attributed to the synergistic effect
between the applied catalyst and clinoptilolite adsorbent.
To summarize, the current research not only broadens the
synthesis method of heterogeneous photocatalyst based on
clinoptilolite, but also provides a promising application
prospect for the clinoptilolite-based composite photocata-
lysts in the field of flotation wastewater treatment.
Figure 10. Real-time absorbance curves of SIPX degradation for the composite photocatalysts (a) TC (b) ATC (c) MTC (d) BTC
composite photocatalysts and the degradation of xanthates.
Firstly, the clinoptilolite used as support can restrain the
crystallite size of catalysts and regulate their microstructure
to influence the photocatalytic activity. Secondly, the intro-
duction of clinoptilolite can endow the composites with
outstanding adsorption ability to concentrate the xanthates
on the photocatalyst surface and thus promote the degrada-
tion rate. Moreover, the clinoptilolite can act as an electron
acceptor to delay the recombination of photoinduced e−/
h+ pairs [20].
CONCLUSIONS
TC binary composite photocatalysts were first synthesized
by using hydrothermal method. The structural character-
ization results demonstrate that anatase TiO2 nanoparticles
are well-dispersed on the clinoptilolite surface. The obtained
TC composited show excellent xanthate degradation per-
formance under UV irradiation. Then, Ag nanoparticles,
MoS2 and BiOCl nanosheets were prepared to modify the
TC to further expand its spectral response range to vis-
ible light. Among three ternary composite photocatalysts,
BTC exhibits the optimal xanthates degradation efficiency.
The excellent xanthates removal efficiencies of all compos-
ite photocatalysts were attributed to the synergistic effect
between the applied catalyst and clinoptilolite adsorbent.
To summarize, the current research not only broadens the
synthesis method of heterogeneous photocatalyst based on
clinoptilolite, but also provides a promising application
prospect for the clinoptilolite-based composite photocata-
lysts in the field of flotation wastewater treatment.
Figure 10. Real-time absorbance curves of SIPX degradation for the composite photocatalysts (a) TC (b) ATC (c) MTC (d) BTC