WO2023284228A1 - 一种高通量超疏水木材、其制备方法及其应用 - Google Patents
一种高通量超疏水木材、其制备方法及其应用 Download PDFInfo
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- 239000002023 wood Substances 0.000 title claims abstract 26
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- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract 6
- -1 polydimethylsiloxane Polymers 0.000 claims abstract 6
- 238000000926 separation method Methods 0.000 claims abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 6
- 229920005610 lignin Polymers 0.000 claims abstract 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000011259 mixed solution Substances 0.000 claims abstract 4
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract 4
- 239000000243 solution Substances 0.000 claims abstract 4
- 229920002488 Hemicellulose Polymers 0.000 claims abstract 2
- 230000005484 gravity Effects 0.000 claims abstract 2
- 239000011148 porous material Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 3
- 239000002904 solvent Substances 0.000 claims 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims 1
- 240000007182 Ochroma pyramidale Species 0.000 claims 1
- 230000004907 flux Effects 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000004108 freeze drying Methods 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
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Abstract
本发明涉及超疏水材料领域,特别是涉及一种高通量超疏水木材的制备方法,包括如下步骤:首先,将木材置于氢氧化钠与亚硫酸钠混合溶液中80-100℃加热6-12h以去除部分半纤维素和木质素,再将其置于过氧化氢溶液中80-100℃加热0.5-2.5h以进一步除去木质素;然后,将木材冰冻并进行冷冻干燥4-10h,再将其浸泡于2-20wt%的聚二甲基硅氧烷溶液中,取出于60~100℃固化3-6h,即制得高通量超疏水木材;本发明所制备的超疏水木材表面水滴接触角可达156°,并且拥有垂直排列和大孔径的多孔结构,可在重力驱动下快速进行高通量油水分离,分离通量可达7165L·m -2·h -1;相对于传统油水分离材料,该木材拥有性能优良、制备简易、天然可再生、应用耗能少等特点。
Description
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Claims (10)
- 一种高通量超疏水木材的制备方法,其特征在于,包括如下步骤:首先,将木材置于氢氧化钠与亚硫酸钠混合溶液中80-100℃加热6-12h以去除部分半纤维素和木质素,再将其置于过氧化氢溶液中80-100℃加热0.5-2.5h以进一步除去木质素;然后,将木材冰冻并进行冷冻干燥4-10h,再将其浸泡于2-20wt%的聚二甲基硅氧烷溶液中,取出于60~100℃固化3-6h,即制得高通量超疏水木材。
- 根据权利要求1所述的高通量超疏水木材的制备方法,其特征在于,所述氢氧化钠与亚硫酸钠混合溶液中的氢氧化钠、亚硫酸钠的比例为6:1-1:1。
- 根据权利要求1所述的高通量超疏水木材的制备方法,其特征在于,所述氢氧化钠的摩尔浓度为10-30mol/L。
- 根据权利要求1所述的高通量超疏水木材的制备方法,其特征在于,所述过氧化氢的摩尔浓度为5-25mol/L。
- 根据权利要求1所述的高通量超疏水木材的制备方法,其特征在于,所述聚二甲基硅氧烷溶液由主体和固化剂组成。
- 根据权利要求5所述的高通量超疏水木材的制备方法,其特征在于,所述聚二甲基硅氧烷溶液的制备方法包括如下步骤:将主体与固化剂组分以10:1的比例混合,并在溶剂中溶解。
- 根据权利要求6所述的高通量超疏水木材的制备方法,其特征在于,所述主体为双键封端的聚二甲基硅氧烷;所述固化剂为多官能度含硅氢键的聚二甲基硅氧烷;所述溶剂为四氢呋喃、正己烷、环己烷、甲苯、丙酮溶剂中的一种或多种;所述溶剂的质量分数为2-20wt%。
- 根据权利要求1所述的高通量超疏水木材的制备方法,其特征在于,所述木材为天然巴沙木材,其密度为120-210kg/m 3,其孔径大小为10-150nm。
- 一种高通量超疏水木材,其特征在于,所述高通量超疏水木材使用权利要求1-8任一项所述的制备方法制得。
- 一种高通量超疏水木材的应用,其特征在于,所述高通量超疏水木材应用于油水分离领域;在油水分离时,所述高通量超疏水木材在重力驱动下进行;所述油水分离中的分离通量为7165L·m -2·h -1。
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CN113499760A (zh) * | 2021-07-15 | 2021-10-15 | 东莞理工学院 | 一种高通量超疏水木材、其制备方法及其应用 |
CN114989482B (zh) * | 2022-05-23 | 2023-08-04 | 南京林业大学 | 一种耐用、柔性和超疏水纳米孔木膜及其制备方法与应用 |
CN115068979B (zh) * | 2022-06-09 | 2023-07-28 | 东莞理工学院 | 具有优良电热、光热效应的超疏水木材及其制备方法和应用 |
CN115006996B (zh) * | 2022-06-15 | 2023-05-05 | 南京林业大学 | 一种不对称润湿性的Janus木膜、制备方法及其应用 |
CN115350602B (zh) * | 2022-08-08 | 2023-07-28 | 东莞理工学院 | 一种用于油水分离的具有光热和电热效应的疏水亲油膜及其制备方法 |
CN116726889A (zh) * | 2023-04-26 | 2023-09-12 | 中国华电科工集团有限公司 | 一种有机废水治理材料及其制备方法和有机废水治理装置 |
CN117001796B (zh) * | 2023-07-03 | 2024-05-28 | 东莞理工学院 | 一种具有破乳能力的超疏水木材及其制备方法和应用 |
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