1
|
Khan AA, Ahmad R, Mehmood F, Ahmad I. Efficient detection of nitric oxide a biomarker associated with COVID19 via N, P co-doped C 60 fullerene: a computational study. J Mol Model 2024; 30:166. [PMID: 38744728 DOI: 10.1007/s00894-024-05954-9] [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: 08/27/2023] [Accepted: 04/21/2024] [Indexed: 05/16/2024]
Abstract
CONTEXT Coronavirus (COVID-19) is a novel respiratory viral infection, causing a relatively large number of deaths especially in people who underly lung diseases such as chronic obstructive pulmonary and asthma, and humans are still suffering from the limited testing capacity. In this article, a solution is proposed for the detection of COVID-19 viral infections through the analysis of exhaled breath gasses, i.e., nitric oxide, a prominent biomarker released by respiratory epithelial, as a non-invasive and time-saving approach. Here, we designed a novel and low-cost N and P co-doped C60 fullerene-based breathalyzer for the detection of NO gas exhaled from the respiratory epithelial cells. This breathalyzer shows a quick response to the detection of NO gas by directly converting NO to NO2 without passing any energy barrier (0 kcal/mol activation energy). The recovery time of breathalyzer is very short (0.98 × 103 s), whereas it is highly selective for NO sensing in the mixture of CO2 and H2O gasses. The study provides an idea for the synthesis of low-cost (compared to previously reported Au atom decorated nanostructure and metal-based breathalyzer), efficient, and highly selective N and P co-doped C60 fullerene-based breathalyzer for COVID-19 detection. METHODS The geometries of N and P-doped systems and gas molecules are simulated using spin-polarized density functional theory calculations.
Collapse
Affiliation(s)
- Adnan Ali Khan
- Center for Computational Materials Science, University of Malakand, Chakdara, Pakistan.
- Department of Chemistry, University of Malakand, Chakdara, Pakistan.
| | - Rashid Ahmad
- Center for Computational Materials Science, University of Malakand, Chakdara, Pakistan.
- Department of Chemistry, University of Malakand, Chakdara, Pakistan.
| | - Fazal Mehmood
- Institiute for Advanced Study, Shenzhen University, Shenzhen, 558060, China
| | - Iftikhar Ahmad
- Center for Computational Materials Science, University of Malakand, Chakdara, Pakistan
- Department of Physics, University of Malakand, Chakdara, Pakistan
| |
Collapse
|
2
|
Sadia M, Khan J, Khan R, Shah SWA, Zada A, Zahoor M, Ullah R, Ali EA. Synthesis and Computational Study of an Optical Fluorescent Sensor for Selective Detection of Ni 2+ Ions. ACS OMEGA 2023; 8:27500-27509. [PMID: 37546637 PMCID: PMC10399192 DOI: 10.1021/acsomega.3c03131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/07/2023] [Indexed: 08/08/2023]
Abstract
The presence of an abnormal amount of Ni2+ in the human body causes various health issues. Therefore, this work aimed to synthesize the curcumin-based fluorescence-on sensor P [2,6-bis((E)-4-chlorobenzylidene)-cyclohexan-1-one] that was capable of selectively responding to Ni2+ ions in aqueous solution. The structure of P was confirmed by 1H NMR and Fourier transform infrared (FTIR) spectroscopy. The Ni2+ ion sensing was based on the fluorescence enhancement of the fluorophore (P) in neutral aqueous medium. The response of the P-based sensor was highly selective toward Ni2+ ions, whereas the possible interferences from other metal cations were negligible. P had a fast response; it was selective and had a sensitive detection limit (LOD = 2 × 10-10 M) toward Ni2+ ions in neutral medium with a high association constant (K) value of 3.6 × 105 M-2 for the complex formation between the P and Ni2+ ions. Job's plot and DFT calculations proved that the binding stoichiometry of P for Ni2+ was 2:1. P was recovered using EDTA as a chelating agent after being employed as a fluorescent sensor. These characteristics ensured the potential use of P as a new class of chemosensor for environmental applications.
Collapse
Affiliation(s)
- Maria Sadia
- Department
of Chemistry, University of Malakand, Chakdara 18800, Lower Dir, Khyber Pakhtunkhwa, Pakistan
| | - Jehangir Khan
- Department
of Chemistry, University of Malakand, Chakdara 18800, Lower Dir, Khyber Pakhtunkhwa, Pakistan
| | - Rizwan Khan
- Department
of Electrical Engineering, Kwangwoon University, Seoul 54047, South Korea
| | - Syed Wadood Ali Shah
- Department
of Pharmacy, University of Malakand, Chakdara 18800, Lower Dir, Khyber Pakhtunkhwa, Pakistan
| | - Adil Zada
- Department
of Chemistry, University of Malakand, Chakdara 18800, Lower Dir, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Zahoor
- Department
of Biochemistry, University of Malakand, Chakdara 18800, Lower Dir, Khyber Pakhtunkhwa, Pakistan
| | - Riaz Ullah
- Department
of Pharmacognosy, College of Pharmacy, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Essam A. Ali
- Department
of Pharmaceutical Chemistry, College of
Pharmacy King Saud University, Riyadh 11451, Saudi Arabia
| |
Collapse
|
3
|
Al-Faiyz YSS, Sarfaraz S, Yar M, Munsif S, Khan AA, Amin B, Sheikh NS, Ayub K. Efficient Detection of Nerve Agents through Carbon Nitride Quantum Dots: A DFT Approach. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:251. [PMID: 36678006 PMCID: PMC9864457 DOI: 10.3390/nano13020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 12/29/2022] [Accepted: 01/01/2023] [Indexed: 06/17/2023]
Abstract
V-series nerve agents are very lethal to health and cause the inactivation of acetylcholinesterase which leads to neuromuscular paralysis and, finally, death. Therefore, rapid detection and elimination of V-series nerve agents are very important. Herein, we have carried out a theoretical investigation of carbon nitride quantum dots (C2N) as an electrochemical sensor for the detection of V-series nerve agents, including VX, VS, VE, VG, and VM. Adsorption of V-series nerve agents on C2N quantum dots is explored at M05-2X/6-31++G(d,p) level of theory. The level of theory chosen is quite adequate in systems describing non-bonding interactions. The adsorption behavior of nerve agents is characterized by interaction energy, non-covalent interaction (NCI), Bader's quantum theory of atoms in molecules (QTAIM), frontier molecular orbital (FMO), electron density difference (EDD), and charge transfer analysis. The computed adsorption energies of the studied complexes are in the range of -12.93 to -17.81 kcal/mol, which indicates the nerve agents are physiosorbed onto C2N surface through non-covalent interactions. The non-covalent interactions between V-series and C2N are confirmed through NCI and QTAIM analysis. EDD analysis is carried out to understand electron density shifting, which is further validated by natural bond orbital (NBO) analysis. FMO analysis is used to estimate the changes in energy gap of C2N on complexation through HOMO-LUMO energies. These findings suggest that C2N surface is highly selective toward VX, and it might be a promising candidate for the detection of V-series nerve agents.
Collapse
Affiliation(s)
- Yasair S. S. Al-Faiyz
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Sehrish Sarfaraz
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Muhammad Yar
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Sajida Munsif
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Adnan Ali Khan
- Centre for Computational Materials Science, University of Malakand, Chakdara 18800, Pakistan
- Department of Chemistry, University of Malakand, Chakdara 18800, Pakistan
| | - Bin Amin
- Department of Physics, Abbottabad University of Science & Technology, Abbottabad 22010, Pakistan
| | - Nadeem S. Sheikh
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| |
Collapse
|
4
|
Kadhim MM, Sadoon N, Ahmed Gheni H, Hachim SK, Majdi A, Abdullaha SA, Mahdi Rheima A. Application of B3O3 monolayer as an electrical sensor for detection of formaldehyde gas: A DFT study. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
5
|
Ullah H, Ahmad R, Khan AA, Khaliq N, Khan M, Ali G, Karim S, Yi X, Cho SO. A sensitive non-enzymatic glucose sensor based on MgO entangled nanosheets decorated with CdS nanoparticles: Experimental and DFT study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
6
|
Synthesis, Attributes and Defect Control of Defect-Engineered Materials as Superior Adsorbents for Aqueous Species: A Review. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02405-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
7
|
Sarfaraz S, Yar M, Ans M, Gilani MA, Ludwig R, Hashmi MA, Hussain M, Muhammad S, Ayub K. Computational investigation of a covalent triazine framework (CTF-0) as an efficient electrochemical sensor. RSC Adv 2022; 12:3909-3923. [PMID: 35425404 PMCID: PMC8981076 DOI: 10.1039/d1ra08738j] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/15/2022] [Indexed: 12/12/2022] Open
Abstract
In the current study, a covalent triazine framework (CTF-0) was evaluated as an electrochemical sensor against industrial pollutants i.e., O3, NO, SO2, SO3, and CO2. The deep understanding of analytes@CTF-0 complexation was acquired by interaction energy, NCI, QTAIM, SAPT0, EDD, NBO and FMO analyses. The outcome of interaction energy analyses clearly indicates that all the analytes are physiosorbed onto the CTF-0 surface. NCI and QTAIM analysis were employed to understand the nature of the non-covalent interactions. Furthermore, SAPT0 analysis revealed that dispersion has the highest contribution towards total SAPT0 energy. In NBO analysis, the highest charge transfer is obtained in the case of SO3@CTF-0 (−0.167 e−) whereas the lowest charge transfer is observed in CO2@CTF-0. The results of NBO charge transfer are also verified through EDD analysis. FMO analysis revealed that the highest reduction in the HOMO–LUMO energy gap is observed in the case of O3 (5.03 eV) adsorption onto the CTF-0 surface, which indicates the sensitivity of CTF-0 for O3 analytes. We strongly believe that these results might be productive for experimentalists to tailor a highly sensitive electrochemical sensor using covalent triazine-based frameworks (CTFs). In the current study, a covalent triazine framework (CTF-0) was evaluated as an electrochemical sensor against industrial pollutants i.e., O3, NO, SO2, SO3, and CO2.![]()
Collapse
Affiliation(s)
- Sehrish Sarfaraz
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, Pakistan, 22060
| | - Muhammad Yar
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, Pakistan, 22060
| | - Muhammad Ans
- Department of Chemistry, University of Agriculture Faisalabad, 38000, Faisalabad, Pakistan
| | - Mazhar Amjad Gilani
- Department of Chemistry, COMSATS University Islamabad, Lahore Campus, 54600, Pakistan
| | - Ralf Ludwig
- Universität Rostock, Institut für Chemie, Abteilung für Physikalische Chemie, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Muhammad Ali Hashmi
- Department of Chemistry, Division of Science & Technology, University of Education, 54770 Lahore, Pakistan
| | - Masroor Hussain
- Department of Data Science, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, KPK, Pakistan
| | - Shabbir Muhammad
- Department of Chemistry, College of Science, King Khalid University, P. O. Box 9004, Abha, 61413, Saudi Arabia
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, Pakistan, 22060
| |
Collapse
|
8
|
Rahimi R, Solimannejad M, Soleimannejad M. Two-dimensionalcovalent triazine frameworks as superior nanocarriers for the delivery of thioguanine anti-cancer drugs: a periodic DFT study. NEW J CHEM 2022. [DOI: 10.1039/d2nj02050e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This work aims to introduce a superior nanocarrier for thioguanine (TG) anti-cancer drug delivery, drug release, and cancer therapy through computational chemistry.
Collapse
Affiliation(s)
- Rezvan Rahimi
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
- Institute of Nanosciences and Nanotechnology, Arak University, Arak 38156-8-8349, Iran
| | - Mohammad Solimannejad
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
- Institute of Nanosciences and Nanotechnology, Arak University, Arak 38156-8-8349, Iran
| | | |
Collapse
|
9
|
Santos TJ, Paggiaro J, Cabral Silva Pimentel HD, Karla Dos Santos Pereira A, Cavallini GS, Pereira DH. Computational study of the interaction of heavy metal ions, Cd(II), Hg(II), and Pb(II) on lignin matrices. J Mol Graph Model 2021; 111:108080. [PMID: 34826714 DOI: 10.1016/j.jmgm.2021.108080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/01/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
Abstract
Contamination by heavy metal ions, particularly in water resources, is a severe environmental problem. In this study, the interaction of metal ions, namely, Cadmium Cd(II), Mercury Hg(II), and Lead Pb(II), on lignin matrices was investigated based on theoretical calculations. Binding energy (ΔEBind) values proved that the Pb(II) interacted better with lignin matrices than Cd(II) or Hg(II), having energy values between -8.4 kcal mol-1 to -20.2 kcal mol-1. The Gibbs energy (ΔG) and enthalpy (ΔH) values for Pb(II) were <0, indicating that the process was spontaneous and released heat. However, the lignin matrices studied in this work did not interact efficiently with Cd(II) and Hg(II) ions because almost all ΔEBind, ΔG, and ΔH values were positive. The bond length of the interaction proved that the Pb ions yielded the smallest values, ratifying the values for the interaction energy. Analyses based on the quantum theory of atoms in molecules showed that the interactions between Pb(II) and the matrices were partially covalent, whereas the interactions of Cd(II) and Hg(II) were predominantly electrostatic, justifying the positive values of ΔEBind, ΔG, and ΔH. The natural bond orbital results showed that the ligand orbitals of the matrix interacted with the lone pair antibonding orbital (LP*) of the metal ions. The theoretical results of the study show the possibility of applying lignin to remove heavy metal ions, especially Pb, and providing information for research related to wastewater treatment.
Collapse
Affiliation(s)
- Thifany Justo Santos
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi -Badejós, P.O. Box 66, 77 402-970, Gurupi, Tocantins, Brazil
| | - Juliana Paggiaro
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi -Badejós, P.O. Box 66, 77 402-970, Gurupi, Tocantins, Brazil
| | | | | | - Grasiele Soares Cavallini
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi -Badejós, P.O. Box 66, 77 402-970, Gurupi, Tocantins, Brazil
| | - Douglas Henrique Pereira
- Chemistry Collegiate, Federal University of Tocantins, Campus Gurupi -Badejós, P.O. Box 66, 77 402-970, Gurupi, Tocantins, Brazil.
| |
Collapse
|
10
|
Das RS, Wankhade AV, Kumar A. Computationally designed ionic liquid based molecularly imprinted@ graphene oxide composite: Characterization and validation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116925] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
11
|
Zhong X, Liang W, Wang H, Xue C, Hu B. Aluminum-based metal-organic frameworks (CAU-1) highly efficient UO 22+ and TcO 4- ions immobilization from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124729. [PMID: 33333387 DOI: 10.1016/j.jhazmat.2020.124729] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/16/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
In this research, an Al-based metal-organic framework (MOFs), CAU-1 was prepared through complexation between 2-aminoterephthalic acid and Al (III) by solvothermal approach, and simple operation and cost-effective synthetic route. The objective was to immobilize the typical positive/negative radionuclide ions (UO22+/TcO4-) in aqueous solution. The synthesized CAU-1 was characterized by XRD, FT-IR, TGA, FESEM, TEM-SAED, pHpzc, XPS and N2 physisorption analysis. The structure of CAU-1 possessed excellent thermostability, rich functional groups (‒NH2 and ‒OH groups), as well as large surface area (1636.3 m2/g) and the micropore volume (0.51 m3/g). Furthermore, batch experiments demonstrated that CAU-1 with superior adsorption capacity was 648.37 (UO22+) mg/g and 692.33 (ReO4-) mg/g calculating from Langmuir isotherm model, respectively. Thermodynamic investigation showed the adsorption process was endothermic and spontaneous. In addition, the adsorption mechanism of ReO4- ion onto CAU-1 could be electrostatic attraction and chelation effect, while for UO22+ ion, was mainly chelation effect induced by nitrogen-containing and oxygen-containing functional groups. Hence, the inexpensive and high-capacity CAU-1 could be considered as a practical material for sequestrations of radioactive pollutants from water environment.
Collapse
Affiliation(s)
- Xin Zhong
- School of Life Science, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Wen Liang
- School of Life Science, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Huifang Wang
- School of Life Science, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Chao Xue
- School of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian Province 350007, PR China.
| | - Baowei Hu
- School of Life Science, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China.
| |
Collapse
|
12
|
Fan G, Wang X, Tu X, Xu H, Wang Q, Chu X. Density functional theory study of Cu-doped BNNT as highly sensitive and selective gas sensor for carbon monoxide. NANOTECHNOLOGY 2021; 32:075502. [PMID: 33113514 DOI: 10.1088/1361-6528/abc57a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The adsorption of CO, CO2, CH4, H2, N2 and N2O on armchair (5,5) boron nitride nanotube (BNNT) with and without the doping of transition metals (TM), i.e. Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu or Zn, was investigated using the density functional theory calculation. The results indicate all the considered gases are physically adsorbed by weak interaction on the pure BNNT, revealing that pure BNNT has poor sensing performance for these gases. TM are then doped in the B or N vacancy of BNNT to improve the sensitivity and selectivity. As a result, it was found that the gas adsorption performance of BNNT is obviously enhanced due to the introduction of TM dopant atom. In particularly, according to the results of adsorption energy, Cu doped BNNT (Cu-BNNT) system shows a high selectivity toward CO molecule compared with other metal doped systems. This is further confirmed by the density of state, energy gap and charge transfer analyses. Furthermore, based on the sensor performance analysis, it was found that Cu-BNNT also has favorable desorption characteristics for CO. Therefore, this study concluded that Cu-BNNT can be used as a superior sensor material with high sensitivity, selectivity and favorable recycle time for CO gas.
Collapse
Affiliation(s)
- Guohong Fan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, People's Republic of China
| | - Xiaohua Wang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, People's Republic of China
| | - Xianxian Tu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, People's Republic of China
| | - Hong Xu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, People's Republic of China
| | - Qi Wang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, People's Republic of China
| | - Xiangfeng Chu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, People's Republic of China
| |
Collapse
|
13
|
A solar light regenerated adsorbent by implanting CdS into an active covalent triazine framework to decontaminate tetracycline. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Gomes J, Lincho J, Mazierski P, Miodyńska M, Zaleska-Medynska A, Martins RC. Unexpected effect of ozone on the paraben's mixture degradation using TiO 2 supported nanotubes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140831. [PMID: 32679505 DOI: 10.1016/j.scitotenv.2020.140831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Titanium dioxide can present advantages when coupled with ozonation. Moreover, the catalytic ozonation can be enhanced by radiation. The main disadvantage of this technology is the use of a suspended catalyst entailing a separation step. Thus, catalytic ozonation was analysed using supported TiO2 nanotubes prepared by anodization at different voltages. The effect of different radiation sources on the catalytic ozonation of parabens was tested. The increase on voltage preparation led to plates with higher surface areas from 60 to 280 cm2. However, this did not improve the parabens mixture degradation during UVA photocatalytic ozonation. The use of sunlight radiation allows a significant reduction in terms of time necessary for total parabens degradation from 15 to 10 min. However, the amount of ozone required doubles. Catalytic ozonation presents worst results than single ozonation. This means that molecular ozone is the main responsible for degradation. No dissolved ozone was detected at the experiments with supported nanotubes which could mean that it was adsorbed on the catalysts surface decreasing the degradation rates. The presence of municipal wastewaters as matrix inhibited parabens degradation for both single and catalytic ozonation, mainly due to the trapping ozone effect. In fact, for the TOD of 4.5 mg/L it was just possible to remove about 80% of parabens when MWW compared to 100% when UP was used. Even so, the presence of supported nanotubes during ozonation seems to be required to reduce the toxicity of the resultant treated effluent. In fact, the wastewater luminescence inhibition decreased (from 100 to 43%) and germination index increased (from 7 to 97%) with catalytic ozonation which may enable treated water reuse.
Collapse
Affiliation(s)
- João Gomes
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal.
| | - João Lincho
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
| | - Pawel Mazierski
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, 80-308 Gdańsk, Poland
| | - Magdalena Miodyńska
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, 80-308 Gdańsk, Poland
| | - Adriana Zaleska-Medynska
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, 80-308 Gdańsk, Poland
| | - Rui C Martins
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
| |
Collapse
|