PMID- 35516768 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231105 IS - 2046-2069 (Electronic) IS - 2046-2069 (Linking) VI - 10 IP - 69 DP - 2020 Nov 17 TI - An electrochemical sensor based on copper-based metal-organic framework-reduced graphene oxide composites for determination of 2,4-dichlorophenol in water. PG - 42212-42220 LID - 10.1039/d0ra06700h [doi] AB - In the present work, we reported the fabrication of a novel electrochemical sensing platform to detect 2,4-dichlorophenol (2,4-DCP) by using a copper benzene-1,3,5-tricarboxylate-graphene oxide (Cu-BTC/GO) composite. The sensor was prepared by drop-casting Cu-BTC/GO suspension onto the electrode surface followed by electrochemical reduction, leading to the generation of an electrochemically reduced graphene oxide network (ErGO). By combining the large specific area of the Cu-BTC matrix with the electrical percolation from the graphene network, the number of accessible reaction sites was strongly increased, which consequently improved the detection performance. The electrochemical characteristics of the composite were revealed by cyclic voltammetry and electrochemical impedance spectroscopy. For the detection of 2,4-DCP, differential pulse voltammetry was used to emphasize the faradaic reaction related to the oxidation of the analyte. The results displayed a low detection limit (83 x 10(-9) M) and a linear range from 1.5 x 10(-6) M to 24 x 10(-6) M alongside high reproducibility (RSD = 2.5% for eight independent sensors) and good stability. Importantly, the prepared sensors were sufficiently selective against interference from other pollutants in the same electrochemical window. Notably, the presented sensors have already proven their ability in detecting 2,4-DCP in real field samples with high accuracy (recovery range = 97.17-104.15%). CI - This journal is (c) The Royal Society of Chemistry. FAU - Nguyen, Manh B AU - Nguyen MB AD - Institute of Chemistry (IoC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam Havt@ich.vast.vn. FAU - Hong Nhung, Vu Thi AU - Hong Nhung VT AD - Institute of Chemistry (IoC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam Havt@ich.vast.vn. FAU - Thu, Vu Thi AU - Thu VT AUID- ORCID: 0000-0003-1634-5348 AD - University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam thuvu.edu86@gmail.com. FAU - Ngoc Nga, Dau Thi AU - Ngoc Nga DT AD - University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam thuvu.edu86@gmail.com. FAU - Pham Truong, Thuan Nguyen AU - Pham Truong TN AD - CY Cergy Paris University, LPPI 5 Mail Gay Lussac F-95000 Cergy France. FAU - Giang, Hoang Truong AU - Giang HT AUID- ORCID: 0000-0002-1450-9807 AD - University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam thuvu.edu86@gmail.com. FAU - Hai Yen, Pham Thi AU - Hai Yen PT AD - Institute of Chemistry (IoC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam Havt@ich.vast.vn. FAU - Phong, Pham Hong AU - Phong PH AD - Institute of Chemistry (IoC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam Havt@ich.vast.vn. FAU - Vu, Tuan A AU - Vu TA AD - Institute of Chemistry (IoC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam Havt@ich.vast.vn. FAU - Thu Ha, Vu Thi AU - Thu Ha VT AUID- ORCID: 0000-0002-4635-6315 AD - Institute of Chemistry (IoC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam Havt@ich.vast.vn. AD - University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam thuvu.edu86@gmail.com. LA - eng PT - Journal Article DEP - 20201119 PL - England TA - RSC Adv JT - RSC advances JID - 101581657 PMC - PMC9057864 COIS- There are no conflicts to declare. EDAT- 2020/11/19 00:00 MHDA- 2020/11/19 00:01 CRDT- 2022/05/06 05:44 PHST- 2020/08/03 00:00 [received] PHST- 2020/11/15 00:00 [accepted] PHST- 2022/05/06 05:44 [entrez] PHST- 2020/11/19 00:00 [pubmed] PHST- 2020/11/19 00:01 [medline] AID - d0ra06700h [pii] AID - 10.1039/d0ra06700h [doi] PST - epublish SO - RSC Adv. 2020 Nov 19;10(69):42212-42220. doi: 10.1039/d0ra06700h. eCollection 2020 Nov 17.