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Wan T, Li K, Kong X, Shen Q, Sun F, Wu H. A new Ag(I) inorganic polymer consisting of Ag(I)-Ag(I) bonds for electrochemical sensing of H 2O 2. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2103805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Tiantian Wan
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Kaiyi Li
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Xiaoxia Kong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Qinqin Shen
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Fugang Sun
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Huilu Wu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
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de Aguiar Filho SQ, Costa AMF, Dos Santos Pereira AK, Cavallini GS, Pereira DH. Interaction of glyphosate in matrices of cellulose and diethylaminoethyl cellulose biopolymers: theoretical viewpoint of the adsorption process. J Mol Model 2021; 27:272. [PMID: 34468918 DOI: 10.1007/s00894-021-04894-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/25/2021] [Indexed: 11/24/2022]
Abstract
Glyphosate is an herbicide widely used in agricultural activities causing contamination of soils and bodies of water and damage to the biodiversity of ecosystems. In this context, the present study aimed to theoretically study the adsorption potential of the biopolymer cellulose (CE) and its diethylaminoethyl cellulose derivative (DEAEC) with the herbicide glyphosate (GLY). Theoretical calculations were performed using the density functional theory. Molecular electrostatic potential and frontier molecular orbital analyses were performed, which allowed identifying the possible sites of interaction of biopolymers that were in the functional groups -OH and O- of cellulose and in the groups -O- and -NH+(CH2CH3)2 of the DEAEC. Reactivity indices chemical softness and hardness showed that both adsorbents could interact with adsorbate. Simulated IR indicated that the interactions could be evinced in experimental measurements by changes in the bands of glyphosate (ν(P = O), δ(P-O-H), δ(C-N-H)) or in the bands of CE and DEAEC (ν(C-O), ν(C-H), ν(N-H)). The binding energies showed that the GLY interacts more effectively with CE than DEAEC. The ΔH prove that all processes are exothermic and the CE-GLY1 interaction showed value of ΔG < 0. The topological results showed a greater number of interactions with electrostatic nature. The results found in the study show that the theoretical data provides useful information to support the use of biopolymers as matrices for glyphosate adsorption or other contaminants.
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Affiliation(s)
- Sílvio Quintino de Aguiar Filho
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi - Badejós, P.O. Box 66, Gurupi, Tocantins, 77 402-970, Brazil
| | - Adão Marcos Ferreira Costa
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi - Badejós, P.O. Box 66, Gurupi, Tocantins, 77 402-970, Brazil
- Federal Institute of Tocantins, Campus Dianópolis - Rodovia TO - 040 - Km 349, Lote 01 - Loteamento Rio Palmeiras, Dianópolis, Tocantins, 77300-000, Brazil
| | | | - Grasiele Soares Cavallini
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi - Badejós, P.O. Box 66, Gurupi, Tocantins, 77 402-970, Brazil
| | - Douglas Henrique Pereira
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi - Badejós, P.O. Box 66, Gurupi, Tocantins, 77 402-970, Brazil.
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Soudani S, Hajji M, Mi JX, Jelsch C, Lefebvre F, Guerfel T, Ben Nasr C. Synthesis, structure and theoretical simulation of a zinc(II) coordination complex with 2,3-pyridinedicarboxylate. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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DFT study of the application of polymers cellulose and cellulose acetate for adsorption of metal ions (Cd2+, Cu2+ and Cr3+) potentially toxic. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02926-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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