Through　effectively　harvesting　and　converting　solar　energy,　photocatalysis　has　become　one　of　the　most　important　technologies　in　wastewater　decontamination　and　hydrogen　production.　Currently,　extensive　studies　are　being　conducted　to　develop　photocatalysts　with　advanced　features,　such　as　visible-light　response,　heterogeneous　nanoarchitecture,　plasmonic　effect,　and　excellent　optical　behavior.　Finding　efficient　utilization　technique　to　improve　photocatalytic　performance　motivates　researchers　all　over　the　world.　Herein,　we　demonstrate　the　design　of　a　visible-light-driven　Pd/Fe2O3/BiVO4　hybrid　with　3D　ordered　macro-/mesoporous　(3DOM)　nanoarchitecture　for　efficiently　photocatalytic　organic　degradation　and　photoelectrochemical　(PEC)　water　splitting.　The　hybrid　photocatalyst　exhibited　two-tier　bandgap　energies　and　possessed　enhanced　ability　to　harvest　visible　light　and　separate　photo-induced　carriers.　It　is　shown　that,　over　the　Pd/Fe2O3/3DOM-BiVO4　photocatalyst,　not　only　the　refractory　phenol　could　be　rapidly　degraded　into　CO2　and　H2O,　but　also　the　photoconversion　efficiency　was　greatly　improved　in　water　splitting　to　generate　H-2.　The　excellent　photocatalytic　performance　of　Pd/Fe2O3/BiVO4　was　associated　with　the　construction　of　low-crystalline　plasmonic　heterointerfaces　through　the　3DOM　framework.　The　produced　synergistic　action　enabled　the　hybrid　material　to　absorb　the　sunlight　adequately　and　transfer　the　photoexcited　carriers　expediently　to　drive　phenol　degradation　or　hydrogen　evolution　from　water.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.