Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 4, Pages 4980-4988Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b16123
Keywords
sustainable material; gum arabic; L-cysteine; carbon flowers; imidacloprid; excellent active sites; electroreduction
Funding
- National Taipei University of Technology
- Mackay Memorial Hospital Joint Research Program [NTUT-MMH-106-06]
- Ministry of Science and Technology, Taiwan, ROC [MOST 106-2113-M-027-003]
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Investigating ecofriendly sustainable materials with excellent electrocatalytic activity is a pivotal approach for the analysis field. The present work reports on the preparation of novel three-dimensional (3D) cerium sulfide with gum arabic carbon flowers (Ce2S3/GACFs) via the hydrothermal method by using L-cysteine as a sulfur source, binding, and reducing agents. The intensive characterization techniques were utilized to corroborate the structural moiety, morphology, and size of Ce2S3/GACFs. The obtained 3D Ce2S3/GACF construction has excellent active sites, and hence it prevents the accumulation of carbon flowers. Furthermore, the obtained Ce2S3/GACF/glassy carbon electrode (GCE) could afford a very high electrocatalytic activity, possessing an exceedingly low detection limit of 32 nM, the high sensitivity of 2.65 mu A mu M-1 cm(-2), good repeatability, and high stability for the detection of insecticide imidacloprid (IMC). The Ce2S3/GACF/GCE also provides a wide linear range of 0.05-1266 mu M toward IMC detection. The excellent recovery results (90-99.3%) are achieved by using various spiked real food samples at Ce2S3/GACF/GCE. Confidently, this work gives up novel construction of 3D metal-carbon-based bioderived material for its catalytic application in the future.
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