1
|
Ben Aissa MA, Khairy M, Khalifa ME, Abdelrahman EA, Raza N, Masoud EM, Modwi A. Facile synthesis of TiO 2@ZnO nanoparticles for enhanced removal of methyl orange and indigo carmine dyes: Adsorption, kinetics. Heliyon 2024; 10:e31351. [PMID: 38831816 PMCID: PMC11145501 DOI: 10.1016/j.heliyon.2024.e31351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 05/07/2024] [Accepted: 05/15/2024] [Indexed: 06/05/2024] Open
Abstract
Water pollution represents one of the most important problems affecting the health of living organisms, so it was necessary to work on the formation of active materials to get rid of pollutants. In this study, Titanium dioxide (TiO2) doping Zinc oxide (ZnO) nanocomposites were produced via simple sonication method at 500 Hz in ethanol medium. At different weight concentrations (2.5, 5, 7.5, and 10 %). The morphology, structure configuration, chemical bonding, crystalline phase, and surface properties of obtained nanocomposites were characterized via FESEM, BET, XRD, XPS, RAMAN and FTIR instrumentation. The nanocomposites were employed as an adsorbent to eliminate the methyl orange (MO) and Indigo Carmine (IC) dyes from an aqueous solution. Batch removal experiments revealed that the elimination of MO and IC dyes by the TiZnO surface was pH and doping Ti concentration-dependent, with maximum removal occurring at pH = 7 for MO and pH = 3 for IC contaminants at 10 % doping Ti concentration (Ti (10 %)@ZnO). Langmuir model fit the absorptive removal of MO and IC dyes into the Ti (10 %)@ZnO surface well. The maximal removal capacity of Ti (10 %)@ZnO nanocomposite was found to be 994.24 mg. g-1 for MO and 305.39 mg. g-1 for IC. The Ti (10 %)@ZnO nanocomposite showed remarkable high stability towards the removal of both dyes through consecutive four cycles.
Collapse
Affiliation(s)
- Mohamed Ali Ben Aissa
- Department of Chemistry, College of Science, Qassim University, P. O. Box: 6644, Buraydah 51452, Saudi Arabia
| | - M. Khairy
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Magdi E. Khalifa
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Ehab A. Abdelrahman
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Nadeem Raza
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Emad M. Masoud
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, 42351, Madinah, Saudi Arabia
| | - Abueliz Modwi
- Department of Chemistry, College of Science, Qassim University, P. O. Box: 6644, Buraydah 51452, Saudi Arabia
| |
Collapse
|
2
|
Das S, Paul S, Sen B, Rudra P, Mondal S, Ali SI. Development of the Sb 4O 5Cl 2@NbSe 2 Composite: The Impact of 2H-NbSe 2 Nanoparticles on Sb 4O 5Cl 2 and Their Application for the Removal of Cr(VI)/Fe(III) and Methyl Orange from Wastewater. Inorg Chem 2024; 63:2709-2724. [PMID: 38253000 DOI: 10.1021/acs.inorgchem.3c04068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
A potential adsorbent, Sb4O5Cl2@NbSe2 composite, was generated from the Sb4O5Cl2 photocatalyst and 5 wt % layered 2H-NbSe2 nanoparticles for the highly effective removal of Cr(VI) and Fe(III) ions and methyl orange (MO) from aqueous solution, and a comparison was drawn against the precursors. Sb4O5Cl2 crystallites and NbSe2 nanoparticles were synthesized hydrothermally, and the composite was prepared by the incipient wetness impregnation technique. The crystal structure of Sb4O5Cl2 was determined by single-crystal X-ray diffraction (SCXRD) data. Powder X-ray diffraction (PXRD) study revealed the 2H phase of NbSe2 nanoparticles. Field emission scanning electron microscopy (FESEM) analysis confirmed the formation of the spherical-shaped NbSe2 nanoparticles from rod-shaped bulk 2H-NbSe2. Morphological changes from the hexagonal to irregular prismatic shape were found upon the formation of the Sb4O5Cl2@NbSe2 composite compared to pure Sb4O5Cl2. Negative ζ-potential values indicated that electrostatic interactions were the predominant factor for the adsorption process. Sb4O5Cl2@NbSe2 provided removal efficiencies of 99% for MO in 6 h, 96.52% for Cr(VI) within 2.5 h, and 92.43% for Fe(III) within 4 h of 10 mg/L initial concentration. The maximum adsorption capacities of the composite for MO, Fe(III), and Cr(VI) were found to be 66.56, 131.48, and 122.30 mg/g, respectively, as calculated using the Langmuir isotherm equation.
Collapse
Affiliation(s)
- Sangita Das
- Department of Chemistry, University of Kalyani, Nadia, Kalyani 741235, West Bengal, India
| | - Sayantani Paul
- Department of Chemistry, University of Kalyani, Nadia, Kalyani 741235, West Bengal, India
| | - Bibaswan Sen
- Department of Chemistry, University of Kalyani, Nadia, Kalyani 741235, West Bengal, India
| | - Pratyasha Rudra
- CSIR-Central Glass and Ceramic Research Institute, Jadavpur, Kolkata 700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Swastik Mondal
- CSIR-Central Glass and Ceramic Research Institute, Jadavpur, Kolkata 700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sk Imran Ali
- Department of Chemistry, University of Kalyani, Nadia, Kalyani 741235, West Bengal, India
| |
Collapse
|
3
|
Esfandiaribayat M, Binazadeh M, Sabbaghi S, Mohammadi M, Ghaedi S, Rajabi H. Tetracycline removal from wastewater via g-C 3N 4 loaded RSM-CCD-optimised hybrid photocatalytic membrane reactor. Sci Rep 2024; 14:1163. [PMID: 38216707 PMCID: PMC10786873 DOI: 10.1038/s41598-024-51847-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/10/2024] [Indexed: 01/14/2024] Open
Abstract
In this study, a split-type photocatalytic membrane reactor (PMR), incorporating suspended graphitic carbon nitride (g-C3N4) as photocatalyst and a layered polymeric composite (using polyamide, polyethersulfone and polysulfone polymers) as a membrane was fabricated to remove tetracycline (TC) from aqueous solutions as the world's second most used and discharged antibiotic in wastewater. The photocatalyst was synthesised from melamine by ultrasonic-assisted thermal polymerisation method and, along with the membrane, was characterised using various methods, including Brunauer-Emmett-Teller analysis (BET), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), Field emission scanning electron microscopy (FESEM), and Ultraviolet-visible spectroscopy (UV-Vis). The PMR process was optimised, using Design-Expert software for tetracycline removal in terms of UV irradiation time, pH, photocatalyst loading, tetracycline concentration, and membrane separation iteration. It was revealed that a membrane-integrated reactor as a sustainable system could effectively produce clean water by simultaneous removal of tetracycline and photocatalyst from aqueous solution. The maximum removal of 94.8% was obtained at the tetracycline concentration of 22.16 ppm, pH of 9.78 with 0.56 g/L of photocatalyst in the irradiation time of 113.77 min after six times of passing membrane. The PMR system showed reasonable reusability by about a 25.8% drop in TC removal efficiency after seven cycles at optimal conditions. The outcomes demonstrate the promising performance of the proposed PMR system in tetracycline removal from water and suggest that it can be scaled as an effective approach for a sustainable supply of antibiotic-free clean water.
Collapse
Affiliation(s)
- Milad Esfandiaribayat
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Mojtaba Binazadeh
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran.
- Department of Civil and Environmental Engineering, University of Alberta, Alberta, T6G 2W2, Canada.
| | - Samad Sabbaghi
- Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran
| | - Milad Mohammadi
- Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran
| | - Samaneh Ghaedi
- School of Engineering, the University of Manchester, Manchester, M13 9PL, UK
| | - Hamid Rajabi
- Department of Civil and Environmental Engineering, School of Engineering, University of Liverpool, Harrison Hughes Building, Liverpool, L69 3GH, UK.
| |
Collapse
|
4
|
Mohammad NN. Carbon Dots from Tire Waste for the Photodegradation of Methyl Orange Dye, Antimicrobial Activity, and Molecular Docking Study. Chem Biodivers 2023; 20:e202301358. [PMID: 37867143 DOI: 10.1002/cbdv.202301358] [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: 09/04/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 10/24/2023]
Abstract
In this study, solvothermal pathway was employed for the synthesis of P, N codoped C-dot using tire waste as a sustainable source of carbon and nitrogen. Comprehensive analyses encompassing X-ray diffraction (XRD) analysis, Transmission Electron Microscopy (TEM), FT-IR, cyclic voltammetry, and UV-Vis spectra were used to assess the crystalline structure, purity, size, fluorescence up-conversion, and morphological attributes of the nanomaterial. Subsequently, the produced C-dots were evaluated for their efficacy in the photocatalytic degradation of methylene blue and methyl orange dyes, demonstrating notable success in degrading methyl orange dye within eight hours in the visible region. Furthermore, the same nanomaterial was applied for carrying out agar disk-diffusion assays against a spectrum of microorganisms. Results revealed substantial inhibition zones against Methicillin-Resistant Staphylococcus aureus (MRSA), Escherichia coli, and Pseudomonas aeruginosa. Elucidating the antimicrobial mechanism, molecular-docking simulations were excuted using on AutoDock Vina with designated ligands. The results indicated a strong binding affinity of the C-dots with certain proteins associated with antibacterial activity. This observation suggests that the synthesized C-dots effectively engage with the active sites of these proteins, indicating their potential as promising antibacterial agents. Importantly, this study implies that C-dots do not induce protein denaturation, thereby warranting further investigation of their utility as antibacterial agents.
Collapse
Affiliation(s)
- Nian N Mohammad
- University of Sulaimani, College of Science, Department of Chemistry
- Komar University of Science and Technology, Department of Medical Laboratory Science
| |
Collapse
|
5
|
Lins A, Jerônimo AG, Barbosa R, Neves L, Trigueiro P, Almeida LC, Osajima JA, Pereira FA, Peña-Garcia RR. Facile Synthesis of Ni-Doped ZnO Nanoparticles Using Cashew Gum: Investigation of the Structural, Optical, and Photocatalytic Properties. Molecules 2023; 28:7772. [PMID: 38067502 PMCID: PMC10708073 DOI: 10.3390/molecules28237772] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 04/13/2024] Open
Abstract
This work adopted a green synthesis route using cashew tree gum as a mediating agent to obtain Ni-doped ZnO nanoparticles through the sol-gel method. Structural analysis confirmed the formation of the hexagonal wurtzite phase and distortions in the crystal lattice due to the inclusion of Ni cations, which increased the average crystallite size from 61.9 nm to 81.6 nm. These distortions resulted in the growth of point defects in the structure, which influenced the samples' optical properties, causing slight reductions in the band gaps and significant increases in the Urbach energy. The fitting of the photoluminescence spectra confirmed an increase in the concentration of zinc vacancy defects (VZn) and monovacancies (Vo) as Zn cations were replaced by Ni cations in the ZnO structure. The percentage of VZn defects for the pure compound was 11%, increasing to 40% and 47% for the samples doped with 1% and 3% of Ni cations, respectively. In contrast, the highest percentage of VO defects is recorded for the material with the lowest Ni ions concentration, comprising about 60%. The influence of dopant concentration was also reflected in the photocatalytic performance. Among the samples tested, the Zn0.99Ni0.01O compound presented the best result in MB degradation, reaching an efficiency of 98.4%. Thus, the recovered material underwent reuse tests, revealing an efficiency of 98.2% in dye degradation, confirming the stability of the photocatalyst. Furthermore, the use of different inhibitors indicated that •OH radicals are the main ones involved in removing the pollutant. This work is valuable because it presents an ecological synthesis using cashew gum, a natural polysaccharide that has been little explored in the literature.
Collapse
Affiliation(s)
- Alexsandro Lins
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
| | - Aimee G. Jerônimo
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
| | - Ricardo Barbosa
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
| | - Luan Neves
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
| | - Pollyana Trigueiro
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
| | - Luciano C. Almeida
- Departamento de Engenharia Química, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil;
| | - Josy A. Osajima
- Universidade Federal de Piauí, Teresina 64049-550, PI, Brazil;
| | - Francisca A. Pereira
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
- Universidade Federal de Piauí, Teresina 64049-550, PI, Brazil;
| | - Ramón R. Peña-Garcia
- Unidade Acadêmica do Cabo de Santo Agostinho, Programa de Pós-Graduação em Engenharia Física, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil; (A.L.); (A.G.J.); (R.B.); (L.N.); (P.T.); (F.A.P.)
- Universidade Federal de Piauí, Teresina 64049-550, PI, Brazil;
| |
Collapse
|
6
|
Li R, Wang Y, Zeng F, Si C, Zhang D, Xu W, Shi J. Advances in Polyoxometalates as Electron Mediators for Photocatalytic Dye Degradation. Int J Mol Sci 2023; 24:15244. [PMID: 37894924 PMCID: PMC10607072 DOI: 10.3390/ijms242015244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
The increasing concerns over the environment and the growing demand for sustainable water treatment technologies have sparked substantial interest in the field of photocatalytic dye removal. Polyoxometalates (POMs), known for their intricate metal-oxygen anion clusters, have received considerable attention due to their versatile structures, compositions, and efficient facilitation of photo-induced electron transfers. This paper provides an overview of the ongoing research progress in the realm of photocatalytic dye degradation utilizing POMs and their derivatives. The details encompass the compositions of catalysts, catalytic efficacy, and light absorption propensities, and the photocatalytic mechanisms inherent to POM-based materials for dye degradation are exhaustively expounded upon. This review not only contributes to a better understanding of the potential of POM-based materials in photocatalytic dye degradation, but also presents the advancements and future prospects in this domain of environmental remediation.
Collapse
Affiliation(s)
| | | | | | | | - Dan Zhang
- Key Laboratory of Biomass Materials Science and Technology of Jilin Province, Beihua University, Binjiang East Road, Jilin 132013, China; (R.L.); (Y.W.); (F.Z.); (C.S.); (W.X.)
| | | | - Junyou Shi
- Key Laboratory of Biomass Materials Science and Technology of Jilin Province, Beihua University, Binjiang East Road, Jilin 132013, China; (R.L.); (Y.W.); (F.Z.); (C.S.); (W.X.)
| |
Collapse
|
7
|
Mahmoudi E, Baghdadi M, Mehrdadi N, Moeinpour F. Boosting environmental remediation: harnessing the efficiency of graphitic carbon nitride stabilized on red ocher surface for enhanced photocatalytic remove of Escherichia coli. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1267. [PMID: 37787789 DOI: 10.1007/s10661-023-11907-1] [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: 07/31/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
In the present study, the antibacterial effect of graphitic carbon nitride coated on the red ocher was investigated by the photocatalytic process to remove Gram-negative Escherichia coli bacteria. The concentration effects (0.025, 0.05, and 0.1 g/mL) of disinfectant, contact time (30, 60, and 90 min), and the number of bacteria (102, 104, and 106 CFU/mL) were examined. In this research, in each experiment, 100 mL of the sample was taken, and the test work was performed. The red ocher required for this project was obtained from Hormoz Island, Hormozgan Province, Iran. Melamine was used for the synthesis and manufacture of graphitic carbon nitride. A general-purpose media was used for microbial culture using the pour and spread plate methods, as well as an LED lamp with a wavelength of 420 nm as a light source for the photocatalytic process. To obtain the important factors, the interaction of the factors and the optimal experimental design were used through the response surface methodology (RSM) based on the Box-Behnken design. According to research findings, this method is effective in eliminating E. coli. The results showed that the increase in the amount of disinfectant from 0.025 to 0.1 g/mL and also the increase of contact time from 30 to 90 min accelerated the removal rate of E. coli. The numerical value of R2 obtained for the removal of E. coli was 0.9728, indicating good agreement between experimental and predicted data. Therefore, its utilization in water disinfection seems necessary, both to ensure human health and environmental protection.
Collapse
Affiliation(s)
- Ebrahim Mahmoudi
- Department of Environmental Engineering, Kish International Campus of Tehran University, Kish, Iran.
| | - Majid Baghdadi
- Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, P.O. Box 1417853111, Tehran, Iran
| | - Naser Mehrdadi
- Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, P.O. Box 1417853111, Tehran, Iran
| | - Farid Moeinpour
- Department of Chemistry, Islamic Azad University, Bandar Abbas Branch, Bandar Abbas, Iran
| |
Collapse
|
8
|
Long B, He H, Yu Y, Cai W, Gu Q, Yang J, Meng S. Bifunctional Hot Water Vapor Template-Mediated Synthesis of Nanostructured Polymeric Carbon Nitride for Efficient Hydrogen Evolution. Molecules 2023; 28:4862. [PMID: 37375417 DOI: 10.3390/molecules28124862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/14/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023] Open
Abstract
Regulating bulk polymeric carbon nitride (PCN) into nanostructured PCN has long been proven effective in enhancing its photocatalytic activity. However, simplifying the synthesis of nanostructured PCN remains a considerable challenge and has drawn widespread attention. This work reported the one-step green and sustainable synthesis of nanostructured PCN in the direct thermal polymerization of the guanidine thiocyanate precursor via the judicious introduction of hot water vapor's dual function as gas-bubble templates along with a green etching reagent. By optimizing the temperature of the water vapor and polymerization reaction time, the as-prepared nanostructured PCN exhibited a highly boosted visible-light-driven photocatalytic hydrogen evolution activity. The highest H2 evolution rate achieved was 4.81mmol∙g-1∙h-1, which is over four times larger than that of the bulk PCN (1.19 mmol∙g-1∙h-1) prepared only by thermal polymerization of the guanidine thiocyanate precursor without the assistance of bifunctional hot water vapor. The enhanced photocatalytic activity might be attributed to the enlarged BET specific surface area, increased active site quantity, and highly accelerated photo-excited charge-carrier transfer and separation. Moreover, the sustainability of this environmentally friendly hot water vapor dual-function mediated method was also shown to be versatile in preparing other nanostructured PCN photocatalysts derived from other precursors such as dicyandiamide and melamine. This work is expected to provide a novel pathway for exploring the rational design of nanostructured PCN for highly efficient solar energy conversion.
Collapse
Affiliation(s)
- Baihua Long
- College of Material and Chemical Engineering, Pingxiang University, Pingxiang 337055, China
| | - Hongmei He
- College of Material and Chemical Engineering, Pingxiang University, Pingxiang 337055, China
| | - Yang Yu
- College of Material and Chemical Engineering, Pingxiang University, Pingxiang 337055, China
| | - Wenwen Cai
- College of Material and Chemical Engineering, Pingxiang University, Pingxiang 337055, China
| | - Quan Gu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Yang
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen 518118, China
| | - Sugang Meng
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Huaibei Normal University, Huaibei 235000, China
| |
Collapse
|
9
|
Lu C, Cao D, Zhang H, Gao L, Shi W, Guo F, Zhou Y, Liu J. Boosted Tetracycline and Cr(VI) Simultaneous Cleanup over Z-Scheme WO 3/CoO p-n Heterojunction with 0D/3D Structure under Visible Light. Molecules 2023; 28:4727. [PMID: 37375282 DOI: 10.3390/molecules28124727] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
In this study, a Z-Scheme WO3/CoO p-n heterojunction with a 0D/3D structure was designed and prepared via a simple solvothermal approach to remove the combined pollution of tetracycline and heavy metal Cr(VI) in water. The 0D WO3 nanoparticles adhered to the surface of the 3D octahedral CoO to facilitate the construction of Z-scheme p-n heterojunctions, which could avoid the deactivation of the monomeric material due to agglomeration, extend the optical response range, and separate the photogenerated electronhole pairs. The degradation efficiency of mixed pollutants after a 70 min reaction was significantly higher than that of monomeric TC and Cr(VI). Among them, a 70% WO3/CoO heterojunction had the best photocatalytic degradation effect on the mixture of TC and Cr(VI) pollutants, and the removing rate was 95.35% and 70.2%, respectively. Meanwhile, after five cycles, the removal rate of the mixed pollutants by the 70% WO3/CoO remained almost unchanged, indicating that the Z-scheme WO3/CoO p-n heterojunction has good stability. In addition, for an active component capture experiment, ESR and LC-MS were employed to reveal the possible Z-scheme pathway under the built-in electric field of the p-n heterojunction and photocatalytic removing mechanism of TC and Cr(VI). These results offer a promising idea for the treatment of the combined pollution of antibiotics and heavy metals by a Z-scheme WO3/CoO p-n heterojunction photocatalyst, and have broad application prospects: boosted tetracycline and Cr(VI) simultaneous cleanup over a Z-scheme WO3/CoO p-n heterojunction with a 0D/3D structure under visible light.
Collapse
Affiliation(s)
- Changyu Lu
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Delu Cao
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Hefan Zhang
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Luning Gao
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Weilong Shi
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Feng Guo
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Yahong Zhou
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Jiahao Liu
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| |
Collapse
|