【摘 要】
：
Highly dispersed ultrasmall ruthenium nanoparticles with a clean surface are deposited onto graphitic carbon nitride (C3N4-Ru)through spontaneous redox reaction between the C3N4 sheets and Ru salt without the use of any reductant.The as-prepared C3N4-Ru e
【机 构】
：
School of Materials Science and Engineering,University of Jinan,Jinan,Shandong 250022,China
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Highly dispersed ultrasmall ruthenium nanoparticles with a clean surface are deposited onto graphitic carbon nitride (C3N4-Ru)through spontaneous redox reaction between the C3N4 sheets and Ru salt without the use of any reductant.The as-prepared C3N4-Ru exhibits distinct peroxidase-like activity.A nanozyme based method is successfully developed for detecting the H2O2 generated in-situ by the two-electron oxygen reduction strategy.The C3N4-Ru nanozyme can realize the detection of H2O2 with a wide linear range and a low detection limit.The testing results are also compared with the conventional modified titration method,and show greater possi-bility for the practical detection of H2O2 produced via the electrochemical oxygen reduction for its higher selectivity.
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