Abstract
Monitoring Pb2+ contentin drinking water is an important measure to safeguard water safety for residents. To overcome drawbacks available electrochemical sensors, this work attempts to fabricate a boron-doped diamond (BDD) electrode for detecting Pb2+ in water. A systematic investigation was conducted on microstructural and electrochemical performances of BDD electrode. The results show that, diamond grains arrange well on BDD electrode surface. The electrode exhibits a high electrochemical active surface area and low charge transfer resistance, favorable to accelerate the stripping reaction process of Pb2+. BDD electrode has a low detection limit in optimized parameter set. Also, the BDD electrode has a good anti-interference ability. The designed BDD electrode is expected to be applicable for monitoring Pb2+ content in waters.
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