Photocatalytic materials for environmental remediation of organic pollutions and heavy metals require not only a strong visible light response and high photocatalytic performance, but also the regeneration and reuse of catalysts. In this work, a ternary hybrid structure material of Nanoscale Zero Valent Iron(Fe 0 ) doped g-C 3 N 4 /MoS 2 layered structure (GCNFM) was synthesized by a facile strategy. Compared with the pure GCN, GCNM and Fe-GCN, the photodegradation efficiency of the GCNFM toward the RhB and Cr(VI) under visible light are considerably enhanced to 98.2% for RhB and 91.4% for Cr(VI),respectively. In addition, the reaction rate constants (K RhB and K Cr ) of GCNFM are much higher than those of GCN, GCNM and Fe-GCN. attributing to that Fe 0 and MoS 2 composited with GCNM promotes the separation of photogenerated electron-hole pairs. Moreover, with the loading of MoS 2 and/or Fe 0 , the holes could displace the ·O 2as the main reactive oxygen specie in GCN. GCNFM maintains an efficient degradation ability to both the RhB and Cr(VI) after several cycles, in spite that normally Fe 0 will be consumed and deactivated with the reduction proceeding as previously reported. It suggests that the photogenerated electrons, in response, can reduce the Fe(III)/Fe(II) to Fe 0 , inducing a regeneration and reuse of Fe 0 . We anticipate this work can provide a good example for the design of efficient, visible light driven and recyclable photocatalysts for environmental remediation of both the organic pollution and heavy metals.

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