Herein,　using　black　talc　as　a　carrier,　a　ternary　black　talc-TiO2　/ZnO　composite　photocatalyst　was　prepared　by　the　sol-gel　method,　and　the　effect　of　the　black　talc　on　the　hetero-structure　properties　of　the　TiO2　and　ZnO　was　systematically　studied.　The　prepared　composite　photocatalyst　showed　an　excellent　degradation　performance　of　the　pollutant,　where　black　talc　plays　an　important　role　in　promoting　the　interface　interaction　by　enhancing　the　contact　area　between　the　TiO2　and　ZnO.　Moreover,　the　free　carbon　element　doping　in　black　talc　favors　the　formation　of　more　oxygen　vacancies,　thereby　improving　the　response　as　a　photocatalyst　in　visible　light.　In　addition,　the　carbon　in　the　black　talc　can　also　adsorb　organic　pollutants　and　enrich　the　surroundings　of　the　photocatalyst　with　pollutants,　so　it　further　improves　the　catalytic　efficiency　of　the　photocatalyst.　Under　UV　irradiation,　the　degradation　rate　of　Rhodamine　B　on　black　talc-TiO2　/ZnO　was　found　3.3　times　higher　than　that　of　black　talc-TiO2　with　good　stability.　©　2021　by　the　authors.　Licensee　MDPI,　Basel,　Switzerland.