The new mixHC [8] can be utilized to afford functional materials, which was showcased by the selective removal of perchlorates from contaminated soil samples. Perchlorate is a persistent pollutant that adversely affects human health by interfering with thyroid hormone production, and occurs in soil, ground water, and food. The accumulation of perchlorate in fertilizers, soil and irrigation water leads to increased plant uptake and subsequent food-chain transfer. This pollutant has been found in various environmental matrices and typically originates from human activities.