treatment has been recognized as one of the most challenging issues in environmental remediation. To reveal the structure–activity relationship of catalysts at a molecular level, here four conjugated organic species modified hourglass-type phosphomolybdate hybrids as photocatalysts were prepared by a hydrothermal method with a formula of (H2L1)2(H2L2)2[Na(H2O)]2[M(H2O)2] M[P4Mo6O31H5]2}·7H2O (M = Fe
探索用于废
水处理的稳定高效的可见光驱动光催化剂已被认为是环境修复中最具挑战性的问题之一。为了在分子
水平上揭示催化剂的构效关系,本文采用
水热法制备了四种共轭有机物种修饰的沙漏型
磷钼酸盐杂化物作为光催化剂,分子式为 (H 2 L1) 2 (H 2
L2) 2 [ Na(H 2 O)] 2 [M(H 2 O) 2 ] M[P 4 Mo 6 O 31 H 5 ] 2 }·7H 2O(M =
铁为1,
钴为2,
锰为3和Zn为4 ; L1 = 4,4'-二
氨基
联苯;
L2 = 2,2'-二甲基-6,6'-联
喹啉)。实验结果表明,晶体1-4具有0-D+1-D→3-D超分子同构结构,具有较宽的可见光吸收能力和合适的能带结构。当用作Cr( VI )还原的光催化剂时,所有晶体在10 W白光照射120 min后均表现出良好的Cr( VI )还原光催化性能,去除率分别为86%、82%、76%和72%。该反应在 Cr(