DDTC-Na-based colorimetric chemosensor for the sensing of cyanide in water |
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Authors: | XiaoDing Lou Zhen Li JinGui Qin |
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Affiliation: | (1) Department of Chemistry, Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan, 430072, China |
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Abstract: | Sodium diethyldithiocarbamate (DDTC-Na) was demonstrated to be a new colorimetric cyanide chemosensor by utilizing an indirect trick. First, some copper ions were added to the colorless aqueous solution of DDTC-Na. Then, the resultant brown solution was studied upon the addition of different anions, including Cl−, I−, IO3−, SO42−, NO2−, Br−, H2PO4−, F−, SCN−, HSO4−, ClO4− and CN−. It was observed by naked eyes that the brown solution changed to colorless immediately after the addition of the trace cyanide, but there were no changes towards other anions, making DDTC-Na a good selective cyanide chemosensor in pure water. Supported by the National Natural Science Foundation of China (Grant Nos. 20674059 & 20402011) |
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Keywords: | colorimetric cyanide chemosensor indirect trick DDTC-Na |
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