Enormous　research　interest　is　devoted　to　fabricating　three-dimensional　graphene-based　gels　(3D　GBGs)　toward　improved　conversion　of　solar　energy　by　virtue　of　the　intrinsic　properties　of　single　graphene　and　3D　porous　structure　characteristics.　Here,　this　concise　minireview　is　primarily　focused　on　the　recent　progress　on　applications　of　3D　GBGs,　including　aerogels　and　hydrogels,　in　photocatalytic　degradation　of　pollutants　from　water　and　air,　such　as　organic　pollutants,　heavy　metal　ions,　bacteria　and　gaseous　pollutants.　In　particular,　the　preponderances　of　3D　GBG　photocatalysts　for　environmental　pollutants　degradation　have　been　elaborated.　Furthermore,　in　addition　to　discussing　opportunities　offered　by　3D　GBG　composite　photocatalysts,　we　also　describe　the　existing　problems　and　the　future　direction　of　3D　GBG　materials　in　this　burgeoning　research　area.　It　is　hoped　that　this　review　could　spur　multidisciplinary　research　interest　for　advancing　the　rational　utilization　of　3D　GBGs　for　practical　applications　in　environmental　remediation.　©　2019　Elsevier　Ltd