This　study　addresses　the　challenge　of　fabricating　high-performance　ceramic　catalyst　scaffolds　with　complex　geometries　and　optimized　properties　by　introducing　an　innovative　approach　using　vat　photopolymerization　3D　printing　of　high-solid　content　UV-curable　resins.　This　method　enables　the　creation　of　a　ceramic　catalysts　with　tailored　geometries,　hierarchical　porosities,　and　enhanced　catalytic　performances.　Composite　slurries　containing　up　to　50　wt%　ceramic　powders　(pseudo-boehmite,　halloysite　nanotubes,　and　CeO2)　were　developed　and　optimized　for　digital　light　processing　(DLP)　3D　printing,　with　fine-tuned　rheological　properties　to　enable　the　printing　of　complex　3D　structures　with　deflection　angle　topologies.　Low-temperature　sintering　at　600　°C　yielded　crack-free　monolithic　catalysts　with　a　high　specific　surface　area　(112.45　m2/g)　and　hierarchical　porosity.　The　3D　printed　CeO2/γ-Al2O3-HNTs　catalysts　demonstrated　exceptional　photocatalytic　performance　for　tetracycline　degradation,　achieving　92.7　%　removal　within　2　h,　with　the　3D　printed　topology　significantly　enhancing　mass　transfer　and　light　utilization　compared　to　conventional　powder　or　honeycomb　catalysts.　This　facile　approach　enables　precise　control　over　the　catalyst　geometry　and　composition,　offering　a　versatile　platform　for　designing　advanced　functional　ceramic　materials　for　environmental　remediation　and　catalysis　applications.　This　study　highlights　the　potential　of　3D　printing　technology　to　revolutionize　catalyst　design　and　manufacturing,　paving　the　way　for　more　efficient　and　tailored　catalytic　systems.　©　2025