Laurate (LA−)-intercalated nickel–chromium-layered double hydroxides (LDHs) were synthesized using the co-precipitation method and investigated as a potential photocatalyst for methylene orange (MO) degradation. For comparison, series of LDHs with various molar ratios Ni2+(or Mg2+)/Cr3+(or Fe3+)/LA−(or CO32−) prepared. X−ray diffraction (XRD) element analysis showed that Ni/Cr(2/1)−1.0 LA LDH h...