AgNPs doping the fold carbon nanoflower composite for highly sensitive electrochemical detection of hydrogen peroxide

The detection of hydrogen peroxide (H 2 O 2 ) has considerable significance in industrial application and pathological monitoring. Inspired by the attributes of functional mesoporous carbons, a non-enzymatic sensor was constructed based on AgNPs doping carbon nanoflower composites (AgNPs/CNF). The characterization results showed that AgNPs/CNF with nanoflower structure greatly enhanced electron transfer rate and displayed outstanding catalytic performance for H 2 O 2 . Remarkably, the prepared sensor presented super low detection limit (5.83 × 10 −11 M) and the wider detection range (1.75 × 10 −10 – 5.41 × 10 −3 M). In addition, the content of H 2 O 2 in the actual disinfectant and human serum samples were further detected, and the recover ratios were 96.00 % – 104.0 % and 96.00–105.2 %, respectively, indicating the prepared sensor can detect H 2 O 2 effectively.