Efficient Visible Light Driven Photocatalytic Removal of RhB and NO with Low Temperature Synthesized ln(OH)_xS_y Hollow Nanocubes: A Comparative Study

摘要

In this work, we report that RhB and NO could be effectively removed under visible light with hollow In-(OH^Sj, nanocubes fabricated at a low temperature of 80 °C. The photocatalytic experiments revealed that these low temperature synthesized hollow InfOH^Sj, nanocubes were more efficient than P25 and In(OH)xSj, counterpart hydrothermally synthesized at 180 °C (ln(OH)*Sj,-180). The porous structures, larger surface area, and new valence band of low temperature synthesized hollow In(OH)wSy nanocubes were thought to account for their superior photocatalytic activity. Among all the m(0H)^S;y samples, the one with original S/In ratio of 0.500 in synthetic solution exhibited the highest photocatalytic removal efficiencies of RhB, while the other with original S/In ratio of 1.000 removed NO most efficiently. We systematically studied the photocatalytic process of RhB on In(OH)*S., and analyzed their different photocatalytic performances on removing RhB and NO. This study reveals that these hollow InfOH^Sy nanocubes are promising for environmental remediation.