Layered double hydroxides as efficient photocatalysts for visible-light degradation of Rhodamine B.

Highlights: [•] Zn/M–NO3-LDHs (Al, Fe, Ti, and Fe/Ti) have been synthesized. [•] The band gap of LDH materials followed the order: Zn/Fe>Zn/Fe/Ti>Zn/Ti>Zn/Al. [•] The photocatalytic performance by four materials: Zn/Ti>Zn/Al>Zn/Fe/Ti>Zn/Fe. [•] The mechanism for photocatalytic degradation on Rhodamine B has also been presumed. [•] Zn/Ti–NO3-LDHs after RB degradation were feasible at least three cycles. [Copyright &y& Elsevier]