Cellulose (Cel) extracted from furfural residue is used as raw material to mix with polyvinyl alcohol (PVA) and sodium alginate (SA) to obtain Cel/PVA/SA aerogel through freezing-drying by means of freezing-thawing method and Ca2+ cross-linking method.The obtained aerogel is further hydrophobically modified with methyl trichlorosilane (MTCS) to prepare Cel/PVA/SA@MTCS material that has a density of 0.035 g·cm-3,a porosity as high as 97.1%,and a 154.5° contact angle with water.The material’s absorption amount to various kinds of oil and organic solvent reaches 36-65 g·g-1.After it has been used for 10 cycles,the absorption amount of the material to soybean oil and vacuum pump oil is still 79% and 74%,respectively of the initial absorption amount.After it has been centrifugated at 1 000 r·min-1 for 10 min,the material’s oil retention rates reach 76% and 80% for soybean oil and vacuum pump oil,respectively.Therefore,based on the excellent oil absorption performance,good oil-water separation effect,and floatability of the material,it provides a highly potential new route for developing high-performance,low-cost,recyclable oil-water separation materials.
KangL, WangB, ZengJ S, et al. Degradable dual superlyophobic lignocellulosic fibers for high-efficiency oil/water separation[J]. Green Chem, 2019, 22(2):504-512.
[2]
XiangB, SunQ, ZhongQ, et al. Current research situation and future prospect of superwetting smart oil/water separation materials[J]. J Mater Chem A, 2022, 10(38):20190-20217.
[3]
YangW J, YuenA C Y, LiA, et al. Recent progress in bio-based aerogel absorbents for oil/water separation[J]. Cellulose, 2019, 26(11):6449-6476.
[4]
AzinE, MoghimiH, HeidarytabarR. Petroleum degradation,biosurfactant and laccase production by Fusarium neocosmosporiellum RH-10:A microcosm study[J]. Soil Sediment Contam, 2018, 27(4):329-342.
[5]
ZhangY, SamE K, LiuJ, et al. Biomass-based/derived value-added porous absorbents for oil/water separation[J]. Waste Biomass Valorization, 2023, 14(10):3147-3168.
[6]
ZhangN, QiY F, ZhangY N, et al. A review on oil/water mixture separation material[J]. Ind Eng Chem Res, 2020, 59(33):14546-14568.
[7]
BaiX G, YuanZ C, LuC G, et al. Recent advances in superwetting materials for separation of oil/water mixtures[J]. Nanoscale, 2023, 15(11):5139-5157.
[8]
FuY, GuoZ G. Natural polysaccharide-based aerogels and their applications in oil-water separations:A review[J]. J Mater Chem A, 2022, 10(15):8129-8158.
[9]
BiS X, LiuW Y, WangC H, et al. A versatile approach to the synthesis of biomass derived from furfural residues as a potential adsorbent[J]. J Environ Chem Eng, 2018, 6(4):5049-5052.
[10]
FürtauerS, HassanM, ElsherbinyA, et al. Current status of cellulosic and nanocellulosic materials for oil spill cleanup[J]. Polymers, 2021, 13(16):2739.
[11]
ChenX Y, YangM Y, CaiX D, et al. Fabrication of wheat straw-based lignin containing nanofibril aerogels as recyclable absorbents for oil-water separation[J]. Cellulose, 2024, 31(1):497-514.
[12]
YeR C, LongJ Y, PengD, et al. Oil/water separation using elastic bio-aerogels derived from bagasse:Role of fabrication steps[J]. J Hazard Mater, 2022, 438:129529.
Dela Cruz L G, AbtT, LeónN, et al. Ice-template crosslinked PVA aerogels modified with tannic acid and sodium alginate[J]. Gels, 2022, 8(7):419.
[15]
ZhengQ F, CaiZ Y, GongS Q. Green synthesis of polyvinyl alcohol (PVA)-cellulose nanofibril (CNF) hybrid aerogels and their use as superabsorbents[J]. J Mater Chem A, 2014, 2(9):3110-3118.
[16]
MulyadiA, ZhangZ, DengY L. Fluorine-free oil absorbents made from cellulose nanofibril aerogels[J]. ACS Appl Mater Interfaces, 2016, 8(4):2732-2740.
[17]
ZhangZ, SèbeG, RentschD, et al. Ultralightweight and flexible silylated nanocellulose sponges for the selective removal of oil from water[J]. Chem Mat, 2014, 26(8):2659-2668.
[18]
WanW B, YangZ, TanT, et al. Three-dimensional hydrophobic melamine@methyl trichlorosilane/polydimethylsiloxane sponge for consecutive and long-term oil/water separation[J]. Chem Eng J, 2023, 476:146824.
[19]
ZhangX X, WangH K, CaiZ Y, et al. Highly compressible and hydrophobic anisotropic aerogels for selective oil/organic solvent absorption[J]. ACS Sustain Chem Eng, 2019, 7(1):332-340.
[20]
ZhangX X, LiuM H, WangH K, et al. Ultralight,hydrophobic,anisotropic bamboo-derived cellulose nanofibrils aerogels with excellent shape recovery via freeze-casting[J]. Carbohydr Polym, 2018, 208:232-240.
[21]
LiaoQ, SuX P, ZhuW J, et al. Flexible and durable cellulose aerogels for highly effective oil/water separation[J]. RSC Adv, 2016, 6(68):63773-63781.
PDF
(6582KB)
