“…Electrochemical sensors with high sensitivity, on-site operation, brief reaction time, and selectivity are crucial for the detection of such toxins in environmental samples from a sustainability point of view. In continuation of our interest in the development of composite materials for environmental applications in energy and water treatment, [23][24][25][26][27] this work focused on the development of a Sb 2 WO 6 /graphene oxide nanocomposite as an electrochemical sensor for heavy-metal-ion sensing and as an efficient photocatalyst for water-contaminant degradation. Sb 2 WO 6 was selected as a desirable dopant to improve the morphology, control the crystal face, and for its semiconductor band potential for enhancing the stability and activity of the graphene oxide composite.…”