CN107051390A - 一种壳聚糖炭‑二氧化钛纳米管复合吸附材料的制备方法 - Google Patents

一种壳聚糖炭‑二氧化钛纳米管复合吸附材料的制备方法 Download PDF

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CN107051390A
CN107051390A CN201710511648.9A CN201710511648A CN107051390A CN 107051390 A CN107051390 A CN 107051390A CN 201710511648 A CN201710511648 A CN 201710511648A CN 107051390 A CN107051390 A CN 107051390A
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titania nanotube
chitosan
adsorbing material
composite adsorbing
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杜威
陶香君
郭杰
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Chuzhou Cigarette Materials Factory
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    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
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    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
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    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
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    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract

本发明公开了一种壳聚糖炭‑二氧化钛纳米管复合吸附材料的制备方法，先以纳米二氧化钛为原料，在氢氧化钠溶液中通过水热法合成二氧化钛纳米管，然后与壳聚糖溶液共混，再经过水热处理使壳聚糖碳化得到壳聚糖炭包覆二氧化钛纳米管材料，最后将得到的材料与纳米二氧化钛共同加入氢氧化钠溶液中再次进行水热反应，在材料表面生长二氧化钛纳米管，经过煅烧处理后得到壳聚糖炭‑二氧化钛纳米管复合吸附材料。本发明的吸附材料不仅吸附容量大，而且能有效去除多种烟气有害成分，具有优良的综合降害效果。

Description

一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法
技术领域
本发明涉及吸附材料技术领域，尤其涉及一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法。
背景技术
卷烟烟气是当烟支在高温下燃烧时产生的复杂的混合物，含有大量对人体有害的成分，包括一氧化碳、尼古丁、胺类、酚类、醛类、氮氧化物、多环芳烃和颗粒物等。如何降低人体对卷烟烟气中有害成分的吸入，降低对人体的危害成为研究的焦点。目前，在卷烟滤嘴中添加具有高吸附性能的材料，是减害降焦的主要手段。吸附材料对烟气中有害成分的吸附性能与吸附材料自身的特性以及烟气中有害成分的性质密切相关。由于有害成分分子大小、性质各异，采用性质、结构单一的吸附材料将难以同时吸附烟气中的多种有害成分，综合降害效果不佳。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种能吸附去除多种烟气有害成分、综合降害效果优良的壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法。
本发明是通过以下技术方案实现的：
一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，包括以下步骤：
（1）将纳米二氧化钛与氢氧化钠溶液按重量比1：（10-20）混合均匀后加入密闭的高压反应釜内于120-160℃条件下保温反应24-48h，冷却、过滤后将得到的固体用蒸馏水洗涤、干燥，得到二氧化钛纳米管；
（2）将步骤（1）得到的二氧化钛纳米管与壳聚糖、醋酸溶液按重量比1：（5-10）：（500-1000）混合后先于40-80℃搅拌0.5-1h，然后加入密闭的高压反应釜内于150-200℃保温反应24-48h，冷却、过滤后将得到的固体用蒸馏水洗涤、干燥，得到壳聚糖炭包覆二氧化钛纳米管；
（3）将步骤（2）得到的壳聚糖炭包覆二氧化钛纳米管与纳米二氧化钛、氢氧化钠溶液按重量比1：（1-1.5）：（10-20）混合均匀后加入密闭的高压反应釜内于110-120℃条件下保温反应6-12h，冷却、过滤后将得到的固体用蒸馏水洗涤后放入真空管式炉于500-600℃条件下煅烧2-3h，冷却后得到壳聚糖炭-二氧化钛纳米管复合吸附材料。
所述的纳米二氧化钛为P25型纳米二氧化钛。
所述的氢氧化钠溶液浓度为8-10mol/L。
所述的醋酸溶液质量分数为4-8%。
所述步骤（1）、步骤（2）的干燥处理条件为80-90℃、10-15h。
本发明的优点是：
本发明先以纳米二氧化钛为原料，在氢氧化钠溶液中通过水热法合成二氧化钛纳米管，然后将二氧化钛纳米管与壳聚糖溶液共混，再经过水热处理使壳聚糖碳化得到壳聚糖炭包覆二氧化钛纳米管材料，最后将得到的材料与纳米二氧化钛共同加入氢氧化钠溶液中再次进行水热反应，在材料表面生长二氧化钛纳米管，经过煅烧处理后得到壳聚糖炭-二氧化钛纳米管复合吸附材料。本发明一方面能使吸附材料中形成二氧化钛纳米管-壳聚糖炭-二氧化钛纳米管的复合结构，使烟气的传输途径变曲折，延长烟气与吸附材料的接触时间，从而更充分地吸附去除烟气有害成分，另一方面使制得的吸附材料具有丰富并且孔径大小不一的多孔结构，有助于截留不同粒径的有害成分、增加吸附容量，同时壳聚糖炭表面的氨基对烟气中的极性有害成分具有良好的选择性吸附能力，而二氧化钛纳米管对焦油有优异的去除能力。因此，本发明制得的吸附材料从结构上有助于不同大小有害成分、从性质上有助于各种化学性质的有害成分的充分去除，不仅吸附容量大，而且能有效去除多种烟气有害成分，具有优良的综合降害效果。
具体实施方式
一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，包括以下步骤：
（1）将纳米二氧化钛与氢氧化钠溶液按重量比1：10混合均匀后加入密闭的高压反应釜内于120℃条件下保温反应24h，冷却、过滤后将得到的固体用蒸馏水洗涤、干燥，得到二氧化钛纳米管；
（2）将步骤（1）得到的二氧化钛纳米管与壳聚糖、醋酸溶液按重量比1：5：500混合后先于40℃搅拌0.5h，然后加入密闭的高压反应釜内于150℃保温反应24h，冷却、过滤后将得到的固体用蒸馏水洗涤、干燥，得到壳聚糖炭包覆二氧化钛纳米管；
（3）将步骤（2）得到的壳聚糖炭包覆二氧化钛纳米管与纳米二氧化钛、氢氧化钠溶液按重量比1：1：10混合均匀后加入密闭的高压反应釜内于110℃条件下保温反应6h，冷却、过滤后将得到的固体用蒸馏水洗涤后放入真空管式炉于500℃条件下煅烧2h，冷却后得到壳聚糖炭-二氧化钛纳米管复合吸附材料。
所述的纳米二氧化钛为P25型纳米二氧化钛。
所述的氢氧化钠溶液浓度为8mol/L。
所述的醋酸溶液质量分数为4%。
所述步骤（1）、步骤（2）的干燥处理条件为80℃、10h。

Claims (5)

1.一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，其特征在于，包括以下步骤：
（1）将纳米二氧化钛与氢氧化钠溶液按重量比1：（10-20）混合均匀后加入密闭的高压反应釜内于120-160℃条件下保温反应24-48h，冷却、过滤后将得到的固体用蒸馏水洗涤、干燥，得到二氧化钛纳米管；
（2）将步骤（1）得到的二氧化钛纳米管与壳聚糖、醋酸溶液按重量比1：（5-10）：（500-1000）混合后先于40-80℃搅拌0.5-1h，然后加入密闭的高压反应釜内于150-200℃保温反应24-48h，冷却、过滤后将得到的固体用蒸馏水洗涤、干燥，得到壳聚糖炭包覆二氧化钛纳米管；
（3）将步骤（2）得到的壳聚糖炭包覆二氧化钛纳米管与纳米二氧化钛、氢氧化钠溶液按重量比1：（1-1.5）：（10-20）混合均匀后加入密闭的高压反应釜内于110-120℃条件下保温反应6-12h，冷却、过滤后将得到的固体用蒸馏水洗涤后放入真空管式炉于500-600℃条件下煅烧2-3h，冷却后得到壳聚糖炭-二氧化钛纳米管复合吸附材料。
2.根据权利要求1所述的一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，其特征在于，所述的纳米二氧化钛为P25型纳米二氧化钛。
3.根据权利要求1所述的一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，其特征在于，所述的氢氧化钠溶液浓度为8-10mol/L。
4.根据权利要求1所述的一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，其特征在于，所述的醋酸溶液质量分数为4-8%。
5.根据权利要求1所述的一种壳聚糖炭-二氧化钛纳米管复合吸附材料的制备方法，其特征在于，所述步骤（1）、步骤（2）的干燥处理条件为80-90℃、10-15h。
CN201710511648.9A 2017-06-29 2017-06-29 一种壳聚糖炭‑二氧化钛纳米管复合吸附材料的制备方法 Pending CN107051390A (zh)

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CN108576924A (zh) * 2018-05-17 2018-09-28 江苏工程职业技术学院 一种负载分子筛香烟过滤嘴及其制备方法
CN111825480A (zh) * 2020-08-13 2020-10-27 西藏大学 一种抗紫外线超疏水防冻材料及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108576924A (zh) * 2018-05-17 2018-09-28 江苏工程职业技术学院 一种负载分子筛香烟过滤嘴及其制备方法
CN108576924B (zh) * 2018-05-17 2020-08-11 江苏工程职业技术学院 一种负载分子筛香烟过滤嘴及其制备方法
CN111825480A (zh) * 2020-08-13 2020-10-27 西藏大学 一种抗紫外线超疏水防冻材料及其制备方法
CN111825480B (zh) * 2020-08-13 2022-11-04 西藏大学 一种抗紫外线超疏水防冻材料及其制备方法

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