高等学校化学学报2011，Vol.32Issue(9)：2219-2222,4.
磺化硫杂杯[4]芳烃修饰纳米金的制备及对水溶液中Cr3+的比色检测
Colorimetric Detection of Cr3+ in Aqueous Solution by Thiacalix[4]arene Tetrasulfonate Modified Gold Nanoparticles
摘要
Abstract
Thiacalix[4]arene tetrasulfonate modified gold nanoparticles were used as colorimetric probes for heavy metal ions detection, which were synthesized by one step without external reducing agent. Those Au NPs are highly dispersed and uniform in aqueous solution, with an average diameter( 8 ± 1) nm. The research indicates that thiacalix[4]arene tetrasulfonate modified Au NPs are capable of detecting Cr3 + with high selectivity, owing to the coordination between Cr3+ and the ligand. The colorimetric detection limit is 1 jxmol/L. Moreover, those probes can be applied in the detection of Cr3* in drinking water, with a detection limit of 2. 5 μmol/L. The modified Au NPs could be utilized as colorimetric probes for rapid qualitative analysis of Cr3 +.关键词
磺化硫杂杯[4]芳烃/金纳米粒子/Cr3+/比色检测Key words
Thiacalix[4]arene tetrasulfonate/ Gold nanoparticle/ Cr3+ / Colorimetric detection分类
化学化工引用本文复制引用
孙忠月,郑秋玲,李海兵..磺化硫杂杯[4]芳烃修饰纳米金的制备及对水溶液中Cr3+的比色检测[J].高等学校化学学报,2011,32(9):2219-2222,4.基金项目
国家自然科学基金(批准号:21072072)、湖北省优秀创新群体(批准号:2009CDA048)和华中师范大学基本科研业务费专项资金自主科研项目(批准号:CCNU09AO200)资助. （批准号:21072072）
