Zinc sulphide (ZnS) and its nanocomposites have received a lot of interest in recent years for their potential photocatalytic uses, notably dye removal from wastewater. This review article aims to offer a complete summary of current improvements in ZnS-based photocatalysts for dye removal, emphasizing limitations and strategies for improving photocatalytic performance. Furthermore, the impact of the synthesis technique, template, and doping of heteroatoms in ZnS matrices on boosting photocatalytic efficiency is investigated. The mechanisms governing dye degradation over ZnS photocatalysts, such as the production and separation of photoinduced charge carriers, are explained. Furthermore, the challenges and future prospects for developing ZnS-based photocatalysts for large-scale dye removal applications are discussed. This study aims to be a significant resource for photocatalysis researchers by giving insights into current advances and guiding future research efforts toward designing and improving effective ZnS-based photocatalysts for environmental remediation.