Abstract
A one-step cation exchange process has been applied for the first time to the fabrication of nanoporous Ba-doped Ag3PO4 hollow nanosheets using Ba3(PO4)2 as the starting material. The constituent-dependent changes in phase and morphology were investigated comprehensively to elucidate the nanosheet formation mechanism. The resultant Ba-doped Ag3PO4 hollow nanosheets exhibited much higher photocatalytic performance and photoconversion efficiency than Ag3PO4 cubes and spherical particles under visible light irradiation. More importantly, the photocatalyst exhibited unique preferential decomposition of methyl orange over rhodamine B and high photocatalytic stability under visible light irradiation.
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