Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Sự phát triển của Fe3+-hydrogel trong quá trình khử 4-nitrophenol
Tóm tắt
Một loại hydrogel hạt đã được chuẩn bị trong điều kiện môi trường với chitosan làm xương sống, axit acrylic làm monome, và axit ascorbic/hydrogen peroxide (Vc/H2O2) làm chất khởi đầu redox, sau đó được liên kết chéo với ion Fe3+. Fe3+-hydrogel thu được đã được thử nghiệm trong quá trình khử xúc tác 4-nitrophenol (4-NP), với nhận định rằng trong sự hiện diện của NaBH4 và môi trường trơ, 5 mg/L 4-NP có thể được khử hoàn toàn bởi Fe3+-hydrogel trong vòng 30 phút. Ngoài ra, Fe3+-hydrogel cho thấy khả năng tái sử dụng xuất sắc trong mười chu kỳ xúc tác liên tiếp.
Từ khóa
#Fe3+-hydrogel #4-nitrophenol #xúc tác #chitosan #axit acrylic #tái sử dụngTài liệu tham khảo
Zheng Y, Li P, Zhang J, Wang A (2007) Study on superabsorbent composite XVI. Synthesis, characterization and swelling behaviors of poly(sodium acrylate)/vermiculite superabsorbent composites. Eur Polym J 43:1691–1698
Zheng Y, Gao T, Wang A (2008) Preparation, swelling, and slow-release characteristics of superabsorbent composite containing sodium humate. Ind Eng Chem Res 47:1766–1773
Xu X-D, Liang L, Chen C-S, Lu B, Wang N-L, Jiang F-G, Zhang X-Z, Zhuo R-X (2010) Peptide hydrogel as an intraocular drug delivery system for inhibition of postoperative scarring formation. ACS Appl Mater Interfaces 2:2663–2671
Ma D, Zhang H-B, Tu K, Zhang L-M (2012) Novel supramolecular hydrogel/micelle composite for co-delivery of anticancer drug and growth factor. Soft Matter 8:3665–3672
Lee HJ, Park YH, Koh WG (2013) Fabrication of nanofiber microarchitectures localized within hydrogel microparticles and their application to protein delivery and cell encapsulation. Adv Funct Mater 23:591–597
Phelps EA, Enemchukwu NO, Fiore VF, Sy JC, Murthy N, Sulchek TA, Barker TH, Garcia AJ (2012) Maleimide cross-linked bioactive PEG hydrogel exhibits improved reaction kinetics and cross-linking for cell encapsulation and in situ delivery. Adv Mater 24:64–70
Billiet T, Vandenhaute M, Schelfhout J, Vlierberghe SV, Dubruel P (2012) A review of trends and limitations in hydrogel-rapid prototyping for tissue engineering. Biomaterials 33:6020–6041
Geng XH, Mo XM, Fan LP, Yin AL, Fang J (2012) Hierarchically designed injectable hydrogel from oxidized dextran, amino gelatin and 4-arm poly(ethylene glycol)-acrylate for tissue engineering application. J Mater Chem 22:25130–25139
Li Z, Wang Y, Wu N, Chen Q, Wu K (2012) Removal of heavy metal ions from wastewater by a novel HEA/AMPS copolymer hydrogel: preparation, characterization, and mechanism. Environ Sci Pollut Res 20:1511–1525
Tang Q, Sun X, Li Q, Lin J, Wu J (2009) Synthesis of polyacrylate/polyethylene glycol interpenetrating network hydrogel and its sorption for Fe3+ ion. J Mater Sci 44:726–733
Natkański P, Kuśtrowski P, Białas A, Piwowarska Z, Michalik M (2013) Thermal stability of montmorillonite polyacrylamide and polyacrylate nanocomposites and adsorption of Fe(III) ions. Appl Clay Sci 75–76:153–157
Chi Y, Tu J, Wang M, Li X, Zhao Z (2014) One-pot synthesis of ordered mesoporous silver nanoparticle/carbon composites for catalytic reduction of 4-nitrophenol. J Colloid Interface Sci 423:54–59
Feng H, Zhang R, Yang X (2013) Synthesis of P(MBA-co-MAA) microsphere-grafted PAMAM dendrimers and their application as supporters for gold nanoparticles. Colloid Polym Sci 291:1329–1339
Song T, Zhou M, Liu W, Bian G, Qi Y, Bai F, Yang X (2015) Preparation of polymer microspheres with reactive epoxy group and amino groups as stabilizers for gold nanocolloids with recoverable catalysis. Colloid Polym Sci 293:187–197
Li J, Liu C, Liu Y (2012) Au/graphene hydrogel: synthesis, characterization and its use for catalytic reduction of 4-nitrophenol. J Mater Chem 22:8426–8430
Sahiner N, Ozay H, Ozay O, Aktas N (2010) A soft hydrogel reactor for cobalt nanoparticle preparation and use in the reduction of nitrophenols. Appl Catal B Environ 101:137–143
Zhang Z, Shao C, Zou P, Zhang P, Zhang M, Mu J, Guo Z, Li X, Wang C, Liu Y (2011) In situ assembly of well-dispersed gold nanoparticles on electrospun silica nanotubes for catalytic reduction of 4-nitrophenol. Chem Commun 47:3906–3908
Zheng Y, Wang A (2012) Ag nanoparticle-entrapped hydrogel as promising material for catalytic reduction of organic dyes. J Mater Chem 22:16552–16559
Grinstead RR (1960) The oxidation of ascorbic acid by hydrogen peroxide. Catalysis by ethylenediaminetetraacetato-iron (111). J Am Chem Soc 82:3464–3471
Isbell HS, Frush HL (1979) Oxidation of L-ascorbic acid by hydrogen peroxide: preparation of L-threonic acid. Carbohydr Res 72:301–304
Yuan J, Wunder S, Warmuth F, Lu Y (2012) Spherical polymer brushes with vinylimidazolium-type poly(ionic liquid) chains as support for metallic nanoparticles. Polymer 53:43–49
Lee JH, Kang S, Lee JY, Jung JH (2012) A tetrazole-based metallogel induced with Ag+ ion and its silver nanoparticle in catalysis. Soft Matter 8:6557–6563
Zheng Y, Zhu Y, Wang A (2014) Kapok fiber structure-oriented polyallylthiourea: Efficient adsorptive reduction for Au(III) for catalytic application. Polymer 55:5211–5217
Sahiner N (2013) Soft and flexible hydrogel templates of different sizes andvarious functionalities for metal nanoparticle preparationand their use in catalysis. Prog Polym Sci 38:1329–1356
Özay H, Kubilay S, Aktas N, Sahiner N (2011) Utilization of environmentally benign hydrogels and their networks as reactor media in the catalytic reduction of nitrophenols. Int J Polym Mater 60:163–173
Sahiner N, Ozay O (2012) Enhanced catalytic activity in the reduction of 4-nitrophenol and 2-nitrophenol by p(AMPS)-Cu(0) hydrogel composite materials. Curr Nanosci 8:367–374
Sahiner N, Ozay H, Ozay O, Aktas N (2010) New catalytic route: Hydrogels as templates and reactors for in situ Ni nanoparticle synthesis and usage in the reduction of 2- and 4-nitrophenols. Appl Catal A Gen 385:201–207
Ajmal M, Siddiq M, Al-Lohedan H, Sahiner N (2014) Highly versatile p(MAc)–M (M: Cu, Co, Ni) microgel composite catalyst for individual and simultaneous catalytic reduction of nitro compounds and dyes. RSC Adv 4:59562–59570
Keenan CR, Sedlak DL (2008) Factors affecting the yield of oxidants from the reaction of nanoparticulate zero-valent iron and oxygen. Environ Sci Technol 42:1262–1267
Agrawal A, Tratnyek PG (1996) Reduction of nitro aromatic compounds by zero-valent iron metal. Environ Sci Technol 30:153–160
Kanel SR, Manning B, Charlet L, Choi H (2005) Removal of arsenic(III) from groundwater by nanoscale zero-Valent iron. Environ Sci Technol 39:1291–1298
Ponder SM, Darab JG, Mallouk TE (2000) Remediation of Cr(VI) and Pb(II) aqueous solutions using supported, nanoscale zero-valent iron. Environ Sci Technol 34:2564–2569