Synthesis of noble‐metal‐free ternary K₇HNb₆O₁₉/Cd_0.5Zn_0.5S/g‐C₃N₄ tandem heterojunctions for efficient photocatalytic performance under visible light

Exploring noble‐metal‐free, highly active and durable catalysts is vital to get to grips with the energy and environmental issues. Herein, we first dexterously design and synthesize a class of ternary Nb 6 /CZS/g‐CN photocatalysts for the removal of hexavalent chromium Cr (VI) and organic dye pollutant (MO) from wastewater under visible‐light irradiation. A heterojunction Nb 6 –1/CZS/g‐CN loaded with 0.01 g K 7 HNb 6 O 19 showed excellent...