TY - GEN
T1 - An ultrasensitive mercury sensor based on self-assembled graphene and gold nanoparticles on shrink polymer
AU - Wu, Zonghao
AU - Jing, Gaoshan
AU - Cui, Tianhong
PY - 2017/7/26
Y1 - 2017/7/26
N2 - Ultrasensitive trace mercury (II) micro sensor fabricated by mixed gold nanoparticle (Au NPs) and graphene suspension solution, and layer-by-layer self-assembled (LBL SA) on a shrink polymer based micro gold electrode is reported for the first time. Owing to the unique wrinkle surface structure and superior properties of modification film, performance of the LBL SA Graphene-Au NPs shrink sensor has enhanced greatly in determination of Hg (II) using anodic stripping voltammetry (ASV): compared with a shrink gold electrode without surface modification, the sensitivity is improved for about 3.7 times from 0.197 μA/ppb to 0.721 μA/ppb; compared with a same-sized sensor without surface modification nor shrink, the sensitivity is improved for over 50 times. This sensor's detection limit of Hg (II) achieved 0.931 ppb with a sensitivity of 0.721 μα/ppb. This simple but highly sensitive sensor can be widely used in applications of on-line environmental monitoring of Hg (II).
AB - Ultrasensitive trace mercury (II) micro sensor fabricated by mixed gold nanoparticle (Au NPs) and graphene suspension solution, and layer-by-layer self-assembled (LBL SA) on a shrink polymer based micro gold electrode is reported for the first time. Owing to the unique wrinkle surface structure and superior properties of modification film, performance of the LBL SA Graphene-Au NPs shrink sensor has enhanced greatly in determination of Hg (II) using anodic stripping voltammetry (ASV): compared with a shrink gold electrode without surface modification, the sensitivity is improved for about 3.7 times from 0.197 μA/ppb to 0.721 μA/ppb; compared with a same-sized sensor without surface modification nor shrink, the sensitivity is improved for over 50 times. This sensor's detection limit of Hg (II) achieved 0.931 ppb with a sensitivity of 0.721 μα/ppb. This simple but highly sensitive sensor can be widely used in applications of on-line environmental monitoring of Hg (II).
UR - http://www.scopus.com/inward/record.url?scp=85029358774&partnerID=8YFLogxK
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U2 - 10.1109/TRANSDUCERS.2017.7994031
DO - 10.1109/TRANSDUCERS.2017.7994031
M3 - Conference contribution
AN - SCOPUS:85029358774
T3 - TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
SP - 234
EP - 237
BT - TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Y2 - 18 June 2017 through 22 June 2017
ER -