Abstract
In this work, a polymeric deep eutectic template of poly(vinyl alcohol) and choline chloride in DMSO was used for the dissolution and preparation of inorganic MoO3 composites. These were further incorporated into poly(acrylic acid) and acrylamide polymerized networks to form an organic-inorganic hydrogel. The characterization of the hydrogel shows that the rectangular-cubic-shaped microstructured inorganic composites were well dispersed on the surface of the hydrogel. More also, the pH-dependent swelling properties of the hydrogel show that the hydrogel increased by 285%, 583%, and 880% in acidic, neutral, and basic solutions respectively. Furthermore, the original transparent hydrogel displayed a distinct light blue coloration after UV-light irradiation for 5 s and eventually turned blue-black after 30 s. This color formation was accompanied by UV-Vis electronic absorption at 294 nm for the original hydrogel and a redshift to 304 and 320 nm after irradiation. The observed transitions could be associated with π→π*/n→π* transitions in the organic molecules or charge transfer transitions in the inorganic molecules. The promising light-responsive property of the hydrogel shows good prospects for optical display devices and photochromic materials.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
References
Nahar Y, Thickett SC (2021) Greener, faster, stronger: the benefits of deep eutectic solvents in polymer and materials science. Polym (Basel) 13:1–24. https://doi.org/10.3390/polym13030447
Xue J, Wang J, Feng D, Huang H, Wang M (2020) Processing of functional composite resins using deep eutectic solvent. Crystals 10:1–19. https://doi.org/10.3390/cryst10100864
Qi Y, Weng Z, Song C, Hu Y, Liu X, Wang J, Zhang S, Liu C, Jian X (2021) Deep eutectic solvent for curing of phthalonitrile resin: lower the curing temperature but improve the properties of thermosetting. High Perform Polym 33:538–545. https://doi.org/10.1177/0954008320972151
Mota-Morales JD, Sánchez-Leija RJ, Carranza A, Pojman JA, del Monte F, Luna-Bárcenas G (2018) Free-radical polymerizations of and in deep eutectic solvents: Green synthesis of functional materials. Prog Polym Sci 78:139–153. https://doi.org/10.1016/j.progpolymsci.2017.09.005
Abdolhosseini M, Shemirani F, Yousefi SM (2020) Poly (deep eutectic solvents) as a new class of sustainable sorbents for solid phase extraction: application for preconcentration of pb (II) from food and water samples. Microchim Acta 187. https://doi.org/10.1007/s00604-020-04564-5
Joos B, Volders J, Da Cruz RR, Baeten E, Safari M, Van Bael MK, Hardy AT (2020) Polymeric backbone eutectogels as a New Generation of Hybrid Solid-State Electrolytes. Chem Mater 32:3783–3793. https://doi.org/10.1021/acs.chemmater.9b05090
Cao ZQ, Wang GJ (2016) Multi-stimuli-responsive polymer materials: particles, films, and bulk gels. Chem Rec 1398–1435. https://doi.org/10.1002/tcr.201500281
Vales TP, Badon IWT, Kim HJ (2018) Multi-responsive Hydrogels Functionalized with a photochromic spiropyran-conjugated Chitosan Network. Macromol Res 26:950–953. https://doi.org/10.1007/s13233-018-6126-9
Bratek-Skicki A (2021) Towards a new class of stimuli-responsive polymer-based materials– recent advances and challenges. Appl Surf Sci Adv 4:100068. https://doi.org/10.1016/j.apsadv.2021.100068
Lee HP, Gaharwar AK (2020) Light-responsive Inorganic Biomaterials for Biomedical Applications. Adv Sci 7:2000863. https://doi.org/10.1002/advs.202000863
Bai Y, Wilbraham L, Gao H, Clowes R, Yang H, Zwijnenburg MA, Cooper AI, Sprick RS (2021) Photocatalytic polymers of intrinsic microporosity for hydrogen production from water. J Mater Chem A 9:19958–19964. https://doi.org/10.1039/d1ta03098a
Weingarten AS, Kazantsev RV, Palmer LC, McClendon M, Koltonow AR, Samuel APS, Kiebala DJ, Wasielewski MR, Stupp SI (2014) Self-assembling hydrogel scaffolds for photocatalytic hydrogen production. Nat Chem 6:964–970. https://doi.org/10.1038/nchem.2075
Zhou H, Zheng S, Liu C, Qu C, Wang Y, **ao W, Li H, Zhao D, Chang J (2019) Preparation and characterization of high-performance polyamic acid salt hydrogel in aqueous solution. High Perform Polym 31:497–502. https://doi.org/10.1177/0954008318818885
Kang M, Deng Y, Oderinde O, Su F, Ma W, Yao F, Fu G, Zhang Z (2019) Sunlight-driven photochromic hydrogel based on silver bromide with antibacterial property and non-cytotoxicity. Chem Eng J 375:121994. https://doi.org/10.1016/j.cej.2019.121994
Ejeromedoghene O, Hu YP, Oderinde O, Yao F, Akinremi C, Akinyeye R, Adewuyi S, Fu G (2022) Transparent and photochromic poly(hydroxyethyl acrylate–acrylamide)/WO3 hydrogel with antibacterial properties against bacterial keratitis in contact lens. J Appl Polym Sci 139:1–15. https://doi.org/10.1002/app.51815
Santos MV, Barud HS, Alencar MAS, Nalin M, Toma SH, Araki K, Benedetti AV, Maciel IO, Fragneaud B, Legnani C, Molina C, Cremona M, Ribeiro SJL (2021) Self-supported Smart Bacterial nanocellulose–phosphotungstic acid nanocomposites for Photochromic Applications. Front Mater 8:1–9. https://doi.org/10.3389/fmats.2021.668835
Liu G, Zhang YM, Xu X, Zhang L, Liu Y (2017) Optically switchable luminescent hydrogel by Synergistically Intercalating Photochromic Molecular Rotor into Inorganic Clay. Adv Opt Mater 5:1–7. https://doi.org/10.1002/adom.201700149
Zheng L, Hua H, Zhang Z, Zhu Y, Wang L, Li Y (2022) PVA/ChCl Deep Eutectic Polymer Blends for Transparent Strain Sensors with antifreeze, flexible, and Recyclable properties. ACS Appl Mater Interfaces 14:49212–49223. https://doi.org/10.1021/acsami.2c15673
Oh KI, Baiz CR (2019) Empirical S = O stretch vibrational frequency map. J Chem Phys 151:0–7. https://doi.org/10.1063/1.5129464
Yudovin-Farber I, Beyth N, Weiss EI, Domb AJ (2010) Antibacterial effect of composite resins containing quaternary ammonium polyethyleneimine nanoparticles. J Nanoparticle Res 12:591–603. https://doi.org/10.1007/s11051-009-9628-8
Oderinde O, Kang M, Kalulu M, Yao F, Fu G (2019) Facile synthesis and study of the photochromic properties of deep eutectic solvent-templated cuboctahedral-WO3/MoO3 nanocomposites. Superlattices Microstruct 125:103–112. https://doi.org/10.1016/j.spmi.2018.10.023
Li B, Jiang L, Li X, Ran P, Zuo P, Wang A, Qu L, Zhao Y, Cheng Z, Lu Y (2017) Preparation of monolayer MoS2 Quantum dots using temporally shaped Femtosecond laser ablation of bulk MoS2 targets in Water. Sci Rep 7:1–12. https://doi.org/10.1038/s41598-017-10632-3
Darban Z, Shahabuddin S, Gaur R, Ahmad I, Sridewi N (2022) Hydrogel-Based Adsorbent Material for the Effective Removal of Heavy Metals from Wastewater: A Comprehensive Review. Gels 8:263 2022. https://doi.org/10.3390/gels8050263
Mañas-Torres MC, Ramírez-Rodríguez GB, García-Peiro JI, Parra-Torrejón B, Cuerva JM, Lopez-Lopez MT, de Cienfuegos LA, Delgado-López JM (2022) Organic/inorganic hydrogels by simultaneous self-assembly and mineralization of aromatic short-peptides. Inorg Chem Front 9:743–752. https://doi.org/10.1039/d1qi01249e
Hussain I, Sayed SM, Liu S, Oderinde O, Kang M, Yao F, Fu G (2018) Enhancing the mechanical properties and self-healing efficiency of hydroxyethyl cellulose-based conductive hydrogels via supramolecular interactions. Eur Polym J 105:85–94. https://doi.org/10.1016/j.eurpolymj.2018.05.025
Ejeromedoghene O, Ma X, Oderinde O, Yao F, Adewuyi S, Fu G (2021) Quaternary type IV deep eutectic solvent-based tungsten oxide/niobium oxide photochromic and reverse fading composite complex. New J Chem 45:18008–18018. https://doi.org/10.1039/d1nj02461b
Xue Y, Wei M, Fu D, Wu Y, Sun B, Yu X, Wu L (2022) A visual discrimination of existing States of Virus Capsid protein by a Giant Molybdate Cluster. Nanomaterials 12:736. https://doi.org/10.3390/nano12050736
Inzani K, Nematollahi M, Vullum-Bruer F, Grande T, Reenaas TW, Selbach SM (2017) Electronic properties of reduced molybdenum oxides. Phys Chem Chem Phys 19:9232–9245. https://doi.org/10.1039/c7cp00644f
Ejeromedoghene O, Zuo X, Ogungbesan SO, Oderinde O, Yao F, Adewuyi S, Fu G (2022) Template synthesis and characterization of photochromic tungsten trioxide nanofibers. J Mater Sci Mater Electron 33:7371–7379. https://doi.org/10.1007/s10854-022-07845-2
Greiner MT, Chai L, Helander MG, Tang WM, Lu ZH (2013) Metal/metal-oxide interfaces: how metal contacts affect the work function and band structure of MoO3. Adv Funct Mater 23:215–226. https://doi.org/10.1002/adfm.201200993
Huang PR, He Y, Cao C, Lu ZH (2014) Impact of lattice distortion and electron do** on α-MoO3 electronic structure. Sci Rep 4:1–7. https://doi.org/10.1038/srep07131
Ejeromedoghene O, Oderinde O, Yao F, Adewuyi S, Fu G (2021) Intrinsic structural/morphological and photochromic responses of WO3 co-doped MoO3 nanocomposites based on varied drying methods. Dry Technol 40:2321–2334. https://doi.org/10.1080/07373937.2021.1949602
Chen M, Shen Y, Xu L, **ang G, Ni Z (2020) Synthesis of a super-absorbent nanocomposite hydrogel based on vinyl hybrid silica nanospheres and its properties. RSC Adv 10:41022–41031. https://doi.org/10.1039/d0ra07074b
Jayaramudu T, Ko HU, Kim HC, Kim JW, Kim J (2019) Swelling behavior of polyacrylamide-cellulose nanocrystal hydrogels: swelling kinetics, temperature, and pH effects. Mater (Basel) 12:2080. https://doi.org/10.3390/ma12132080
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Ejeromedoghene, O., Kpomah, B. Light-Responsive Organic-Inorganic Hydrogel Functionalized with MoO3 Composites of Poly(Vinyl Alcohol) and Choline Chloride-Based Polymeric Deep Eutectic Solvent. Chemistry Africa 7, 2857–2865 (2024). https://doi.org/10.1007/s42250-024-00943-0
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DOI: https://doi.org/10.1007/s42250-024-00943-0