TY - JOUR
T1 - Highly selective colorimetric platinum nanoparticle-modified core-shell molybdenum disulfide/silica platform for selectively detecting hydroquinone
AU - Zhu, Xixi
AU - Xue, Yan
AU - Hou, Shutong
AU - Song, Peng
AU - Wu, Tao
AU - Zhao, Hui
AU - Osman, Nahid A.
AU - Alanazi, Abdullah K.
AU - Gao, Yan
AU - Abo-Dief, Hala M.
AU - Li, Handong
AU - Xu, Ben Bin
AU - Wasnik, Priyanka
AU - Liu, Qingyun
N1 - Funding information: This work was supported by the National Natural Science Foundation of China (Grant Nos. 51904175 and 21971152), Natural Science Foundation of Shandong Province (Grant No. ZR2020QE141), Project of Shandong Province Higher Educational Young Innovative Talent Introduction and Cultivation Team (Nanozymes biomedical innovation team), and Science and Technology Project of Qingdao West Coast New Area (Grant No. 2020–95). The researchers would like to acknowledge Deanship of Scientific Research, Taif University, for funding this work.
PY - 2023/8/1
Y1 - 2023/8/1
N2 - The one-step hydrothermal reduction method was used to create platinum nanoparticle (Pt NPs)-modified molybdenum disulfide (MoS2)-silica (SiO2) nanocomposites (Pt-MoS2/SiO2) with excellent peroxidase-like activity. Results of characterization revealed the successful synthesis of Pt-MoS2/SiO2 with the diameter being about 1 μm. Steady-state kinetic experiments indicated that the catalytic behavior of Pt-MoS2/SiO2 followed the Michaelis–Menten model of enzyme kinetics and had a good affinity with the substrates. The electron spin resonance (ESR) analysis results showed that hydrogen peroxide could be decomposed into hydroxyl radicals (·OH) and superoxide radicals (·O2−) under the catalysis of Pt-MoS2/SiO2, and followed by oxidizing colorless 3,3′,5,5′-tetramethylbenzidine (TMB) into a blue oxidation product (oxTMB). However, hydroquinone (HQ) could prevent TMB from oxidizing, and the amount of fade relied on the amount of HQ. This led to the development of a quick, sensitive, and accurate colorimetric sensing device for HQ, with a linear range of 0.5–9 μM and a limit of detection (LOD) as low as 0.242 μM. Furthermore, the satisfactory sensitivity and selectivity of HQ sensing platform in tap water and river water samples endowed it as a potential candidate in real applications. Graphical Abstract: A facile and efficient sensing platform for hydroquinone was established based on the peroxidase-like activity of platinum modified core–shell molybdenum disulfide/silica nanocomposites. [Figure not available: see fulltext.].
AB - The one-step hydrothermal reduction method was used to create platinum nanoparticle (Pt NPs)-modified molybdenum disulfide (MoS2)-silica (SiO2) nanocomposites (Pt-MoS2/SiO2) with excellent peroxidase-like activity. Results of characterization revealed the successful synthesis of Pt-MoS2/SiO2 with the diameter being about 1 μm. Steady-state kinetic experiments indicated that the catalytic behavior of Pt-MoS2/SiO2 followed the Michaelis–Menten model of enzyme kinetics and had a good affinity with the substrates. The electron spin resonance (ESR) analysis results showed that hydrogen peroxide could be decomposed into hydroxyl radicals (·OH) and superoxide radicals (·O2−) under the catalysis of Pt-MoS2/SiO2, and followed by oxidizing colorless 3,3′,5,5′-tetramethylbenzidine (TMB) into a blue oxidation product (oxTMB). However, hydroquinone (HQ) could prevent TMB from oxidizing, and the amount of fade relied on the amount of HQ. This led to the development of a quick, sensitive, and accurate colorimetric sensing device for HQ, with a linear range of 0.5–9 μM and a limit of detection (LOD) as low as 0.242 μM. Furthermore, the satisfactory sensitivity and selectivity of HQ sensing platform in tap water and river water samples endowed it as a potential candidate in real applications. Graphical Abstract: A facile and efficient sensing platform for hydroquinone was established based on the peroxidase-like activity of platinum modified core–shell molybdenum disulfide/silica nanocomposites. [Figure not available: see fulltext.].
KW - Colorimetric platform
KW - Hydrogen peroxide
KW - Nanozymes
KW - Peroxidase-like activity
UR - https://www.scopus.com/pages/publications/85165316070
U2 - 10.1007/s42114-023-00719-z
DO - 10.1007/s42114-023-00719-z
M3 - Article
AN - SCOPUS:85165316070
SN - 2522-0128
VL - 6
JO - Advanced Composites and Hybrid Materials
JF - Advanced Composites and Hybrid Materials
IS - 4
M1 - 142
ER -