| Summary: | Environmental pollution has been decreased by using photocatalytic technology in conjunction with solar energy. An efficient method to obtain highly efficient photocatalysts is to build heterojunction photocatalysts by combining graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) with layered double hydroxides (LDHs). In this review, recent developments in LDH/g-C<sub>3</sub>N<sub>4</sub> heterojunctions and their applications for organic pollutant removal are systematically exhibited. The advantages of LDH/g-C<sub>3</sub>N<sub>4</sub> heterojunction are first summarized to provide some overall understanding of them. Then, a variety of approaches to successfully assembling LDH and g-C<sub>3</sub>N<sub>4</sub> are simply illustrated. Last but not least, certain unmet research needs for the LDH/g-C<sub>3</sub>N<sub>4</sub> heterojunction are suggested. This review can provide some new insights for the development of high-performance LDH/g-C<sub>3</sub>N<sub>4</sub> heterojunction photocatalysts. It is indisputable that the LDH/g-C<sub>3</sub>N<sub>4</sub> heterojunctions can serve as high-performance photocatalysts to make new progress in organic pollutant removal.
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