Fig. 1From: Surfactant-Tuned Phase Structure and Morphologies of Cu2ZnSnS4 Hierarchical Microstructures and Their Visible-Light Photocatalytic ActivitiesXRD patterns of CZTS hierarchical microstructures synthesized at 200 °C for 48 h with different surfactants, such as ethylene diamine tetraacetic acid (EDTA), citric acid (CA), and tartaric acid (TA). The standard patterns of the kesterite CZTS (JCPDS card no. 26-0575), CuS (JCPDS card no. 06-0464), and the wurtzite one (Ref. [27]) are shown below as referenceBack to article page