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Kushwaha A, Goel N. A DFT study of superior adsorbate-surface bonding at Pt-WSe 2 vertically aligned heterostructures upon NO 2, SO 2, CO 2, and H 2 interactions. Sci Rep 2024; 14:15708. [PMID: 38977755 PMCID: PMC11231162 DOI: 10.1038/s41598-024-65213-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 06/18/2024] [Indexed: 07/10/2024] Open
Abstract
This study investigates the potential of platinum (Pt) decorated single-layer WSe2 (Pt-WSe2) monolayers as high-performance gas sensors for NO2, CO2, SO2, and H2 using first-principles calculations. We quantify the impact of Pt placement (basal plane vs. vertical edge) on WSe2's electronic properties, focusing on changes in bandgap (ΔEg). Pt decoration significantly alters the bandgap, with vertical edge sites (TV-WSe2) exhibiting a drastic reduction (0.062 eV) compared to pristine WSe2 and basal plane decorated structures (TBH: 0.720 eV, TBM: 1.237 eV). This substantial ΔEg reduction in TV-WSe2 suggests a potential enhancement in sensor response. Furthermore, TV-WSe2 displays the strongest binding capacity for all target gases due to a Pt-induced "spillover effect" that elongates adsorbed molecules. Specifically, TV-WSe2 exhibits adsorption energies of - 0.5243 eV (NO2), - 0.5777 eV (CO2), - 0.8391 eV (SO2), and - 0.1261 eV (H2), indicating its enhanced sensitivity. Notably, H2 adsorption on TV-WSe2 shows the highest conductivity modulation, suggesting exceptional H2 sensing capabilities. These findings demonstrate that Pt decoration, particularly along WSe2 vertical edges, significantly enhances gas sensing performance. This paves the way for Pt-WSe2 monolayers as highly selective and sensitive gas sensors for various applications, including environmental monitoring, leak detection, and breath analysis.
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Affiliation(s)
- Aditya Kushwaha
- Department of Electronics and Communication Engineering, Netaji Subhas University of Technology, Dwarka, New Delhi, 110078, India
| | - Neeraj Goel
- Department of Electronics and Communication Engineering, Netaji Subhas University of Technology, Dwarka, New Delhi, 110078, India.
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Pratap Singh Raman A, Thakur G, Pandey G, Kumari K, Singh P. An Updated Review on Functionalized Graphene as Sensitive Materials in Sensing of Pesticides. Chem Biodivers 2024; 21:e202302080. [PMID: 38578653 DOI: 10.1002/cbdv.202302080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/06/2024]
Abstract
Numerous chemical pesticides were employed for a long time to manage pests, but their uncontrolled application harmed the health and the environment. Accurately quantifying pesticide residues is essential for risk evaluation and regulatory purposes. Numerous analytical methods have been developed and utilized to achieve sensitive and specific detection of pesticides in intricate sampl es like water, soil, food, and air. Electrochemical sensors based on amperometry, potentiometry, or impedance spectroscopy offer portable, rapid, and sensitive detection suitable for on-site analysis. This study examines the potential of electrochemical sensors for the accurate evaluation of various effects of pesticides. Emphasizing the use of Graphene (GR), Graphene Oxide (GO), Reduced Graphene Oxide (rGO), and Graphdiyne composites, the study highlights their enhanced performance in pesticide sensing by stating the account of many actual sensors that have been made for specific pesticides. Computational studies provide valuable insights into the adsorption kinetics, binding energies, and electronic properties of pesticide-graphene complexes, guiding the design and optimization of graphene-based sensors with improved performance. Furthermore, the discussion extends to the emerging field of biopesticides. While the GR/GO/rGO based sensors hold immense future prospects, and their existing limitations have also been discussed, which need to be solved with future research.
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Affiliation(s)
- Anirudh Pratap Singh Raman
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, Delhi, India
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Delhi- NCR Campus, Delhi-Merrut Road, Modinagar, Ghaziabad, UP, India
| | - Gauri Thakur
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, Delhi, India
- Department of Chemistry, Indian Institute of Technology, Madras, India
| | - Garima Pandey
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Delhi- NCR Campus, Delhi-Merrut Road, Modinagar, Ghaziabad, UP, India
| | - Kamlesh Kumari
- Department of Zoology, University of Delhi, Delhi, India
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, Delhi, India
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Delhi- NCR Campus, Delhi-Merrut Road, Modinagar, Ghaziabad, UP, India
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Lorusso C, Calisi A, Sanchez-Hernandez JC, Varodi C, Pogăcean F, Pruneanu S, Dondero F. Carbon nanomaterial functionalization with pesticide-detoxifying carboxylesterase. CHEMOSPHERE 2022; 309:136594. [PMID: 36167211 DOI: 10.1016/j.chemosphere.2022.136594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 09/11/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Four carbon materials, spent coffee-ground biochar, carbon black, short CNTs, and nitrogen-doped few-layer graphene (N-graphene) were tested for their functionalization with a commercial carboxylesterase. Their robustness to variations in time and key physicochemical parameters (temperature and pH) was analysed. In general, carbon nanomaterials showed better performance than biochar, both in terms of binding capacity and resilience in harsh conditions, at statistically significant levels. Among the tested materials, functionalized N-graphene also showed the highest level of inhibition of carboxylesterase by pesticide exposure. Therefore, N-graphene was selected for biotechnological application of pesticide scavenging toxicity in T. thermophila, a ciliate bioindicator of water quality. While immobilization of the enzyme was not effective in the case of carbaryl, a methyl carbamate, in the case of the organophosphorus dichlorvos, a 1- or 30-min contact time with a water solution containing 5 times the LC100 - 0.5 mM - allowed 50% and 100% rescue of ciliate survival, respectively. These results suggest that functionalization with carboxylesterase may be of additional benefit compared to bare carbon in water clean-up procedures, especially for highly hydrophilic pesticides such as dichlorvos.
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Affiliation(s)
- Candida Lorusso
- Department of Science and Technological Innovation (DISIT), University of Eastern Piedmont, Viale Michel 11, 15121 Alessandria, Italy.
| | - Antonio Calisi
- Department of Science and Technological Innovation (DISIT), University of Eastern Piedmont, Viale Michel 11, 15121 Alessandria, Italy.
| | - Juan Carlos Sanchez-Hernandez
- Laboratory of Ecotoxicology, Institute of Environmental Sciences, University of Castilla-La Mancha, 45071 Toledo, Spain.
| | - Codruta Varodi
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania.
| | - Florina Pogăcean
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania.
| | - Stela Pruneanu
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania.
| | - Francesco Dondero
- Department of Science and Technological Innovation (DISIT), University of Eastern Piedmont, Viale Michel 11, 15121 Alessandria, Italy.
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Sun M, Xu W, Zhang W, Guang C, Mu W. Microbial elimination of carbamate pesticides: specific strains and promising enzymes. Appl Microbiol Biotechnol 2022; 106:5973-5986. [PMID: 36063179 DOI: 10.1007/s00253-022-12141-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/02/2022]
Abstract
Carbamate pesticides are widely used in the environment, and compared with other pesticides in nature, they are easier to decompose and have less durability. However, due to the improper use of carbamate pesticides, some nontarget organisms still may be harmed. To this end, it is necessary to investigate effective removal or elimination methods for carbamate pesticides. Current effective elimination methods could be divided into four categories: physical removal, chemical reaction, biological degradation, and enzymatic degradation. Physical removal primarily includes elution, adsorption, and supercritical fluid extraction. The chemical reaction includes Fenton oxidation, photo-radiation, and net electron reduction. Biological degradation is an environmental-friendly manner, which achieves degradation by the metabolism of microorganisms. Enzymatic degradation is more promising due to its high substrate specificity and catalytic efficacy. All in all, this review primarily summarizes the property of carbamate pesticides and the traditional degradation methods as well as the promising biological elimination. KEY POINTS: • The occurrence and toxicity of carbamate pesticides were shown. • Biological degradation strains against carbamate pesticides were presented. • Promising enzymes responsible for the degradation of carbamates were discussed.
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Affiliation(s)
- Minwen Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Wei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Cuie Guang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.,International Joint Laboratory On Food Safety, Jiangnan University, Wuxi, 214122, China
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Qin Y, Wu X, Zhou N, Xu H, Tan J, Chen X, Peng Z, Nie C. The simulation study of transport performance of HU drugs on functionalized graphene nanosheets based on the Density Functional Theory. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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