CN106732431B - 一种基于海藻多糖的金属离子吸附剂及其制备方法 - Google Patents

一种基于海藻多糖的金属离子吸附剂及其制备方法 Download PDF

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CN106732431B
CN106732431B CN201710001683.6A CN201710001683A CN106732431B CN 106732431 B CN106732431 B CN 106732431B CN 201710001683 A CN201710001683 A CN 201710001683A CN 106732431 B CN106732431 B CN 106732431B
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adsorbent
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preparation
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metal ion
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CN106732431A (zh
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叶卓亮
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Fuzhou University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • 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
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • 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
    • B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

本发明提供了一种基于海藻多糖的金属离子吸附剂及其制备方法，用于快速吸附水溶液中的一些重金属。该吸附剂的成分如下：海藻酸钠占比0.1‑5份，聚乙烯亚胺占比0.1‑2份。该吸附剂制备方法简单，原料天然易得，能从含重金属的水中快速吸附铜和铁等重金属，且脱附后可再生重复利用，具有十分广阔的应用前景。

Description

一种基于海藻多糖的金属离子吸附剂及其制备方法
技术领域
本发明属于重金属回收技术领域，具体涉及一种基于海藻多糖的金属离子吸附剂及其制备方法与使用。
背景技术
随着国家对废水处理的要求的提高，以及工厂对从工业废水中回收高价值品以提高过程的经济性，这就使开发简单，高效，经济的工业废水重金属处理过程成为了一种迫切需要。因而，针对这个问题，本发明开发了一种基于海藻多糖的金属离子吸附剂。该吸附剂具有吸附快，可重复使用等优良特性，对于含金属废水的快速处理具有非常重要的意义。
发明内容
本发明的目的在于提供一种基于海藻多糖的金属离子吸附剂及其制备方法，其解决含金属废水的快速处理，经济可行，且可多次回收，重复利用。
为实现上述目的，本发明采用如下技术方案：
一种基于海藻多糖的金属离子吸附剂，其以海藻酸钠为原料，经阳离子和聚乙烯亚胺两次交联制备而成，所述吸附剂包括以下重量份原料：海藻酸钠占比0.1-5份，聚乙烯亚胺占比0.1-2份。
所述吸附剂的制备方法是将0.1-5重量份海藻酸钠加入95-99.9重量份水中配制成溶液，冷冻干燥后，置于0.1-2重量份的含铜化合物所配制成的质量分数0.01-1%溶液中交联并煮沸；形成的吸附剂再加入0.1-2重量份聚乙烯亚胺和0.1-2重量份铜离子配成的质量分数各为0.01-1%的溶液中二次交联并煮沸；最后将制得的吸附剂用碳酸钠洗脱。
本发明的优点在于：在吸附剂制备过程中，由于加入了目标金属离子做为模板，洗脱后可留下印记孔穴，使其金属吸附速率显著提高，能在2-10分钟内完成高浓度金属离子的去除，显著提高了该海藻酸钠-聚乙烯亚胺吸附剂的使用性能。同时，聚乙烯亚胺也存在较强的络合金属离子的能力，使该吸附剂的吸附性能得到了进一步加强。本发明制备的吸附剂用于吸附重金属时具有高效快速可重复使用等优良特性，具有重要的工业废水处理价值。
附图说明
图1为本发明所得吸附剂处理铜离子废水的效果图，10分钟内，铜离子浓度从610mg/L降至4 mg/L，而仅仅通过冷冻干燥处理的海藻酸钠吸附剂则只能使铜离子浓度从610mg/L降至478 mg/L 。
具体实施方式
为了使本发明所述的内容更加便于理解，下面结合具体实施方式对本发明所述的技术方案做进一步的说明，但是本发明不仅限于此。
实施例1
将海藻酸钠0.5份加入99.5份水中，配成溶液，并放入负20度冰箱冷冻后冻干一天，将得到的样品用0.17份二水氯化铜所配制成的质量分数0.1%溶液交联，并煮沸半小时，再加入用0.17份二水氯化铜和0.17份聚乙烯亚胺配成的质量分数各为0.1%的溶液，再搅拌加热并煮沸半小时，得到的样品用10%碳酸钠溶液洗脱金属离子两天，即得吸附剂。
实施例2
所述吸附剂的制备方法是将5份海藻酸钠加入99.9份水中配制成溶液，冷冻干燥后，置于2份的二水氯化铜所配制成的质量分数1%溶液中交联并煮沸。形成的吸附剂再加入用2份聚乙烯亚胺和2份二水氯化铜配制成的质量分数各为1%溶液中二次交联并煮沸。最后将制得的吸附剂用碳酸钠洗脱去金属离子。
实施例3
将0.1份海藻酸钠加入95份水中配制成溶液，冷冻干燥后，置于0.1份的二水氯化铜所配制成的质量分数0.01%溶液中交联并煮沸。形成的吸附剂再加入0.1份聚乙烯亚胺和0.1份二水氯化铜配成的质量分数0.01%溶液溶液中二次交联并煮沸。最后将制得的吸附剂用碳酸钠洗脱。
以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所做的均等变化与修饰，皆应属本发明的涵盖范围。

Claims (1)

1.一种基于海藻多糖的金属离子吸附剂的制备方法，其特征在于：将0.1-5重量份海藻酸钠加入95-99.9重量份水中配制成溶液，冷冻干燥后，置于0.1-2重量份的含铜化合物所配制成的质量分数0.01-1%溶液中交联并煮沸；形成的吸附剂再加入用0.1-2重量份聚乙烯亚胺和0.1-2重量份铜离子配成的质量分数各为0.01-1%的溶液中二次交联并煮沸；最后将制得的吸附剂用碳酸钠洗脱。
CN201710001683.6A 2017-01-03 2017-01-03 一种基于海藻多糖的金属离子吸附剂及其制备方法 Expired - Fee Related CN106732431B (zh)

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RU2788460C1 (ru) * 2021-10-25 2023-01-19 Фатима Акимовна Гагиева Способ извлечения ионов меди (ii) из растворов

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CN108585228B (zh) * 2018-04-07 2021-09-03 侯文燕 一种海藻多糖高效锅炉水调节剂
CN108976315B (zh) * 2018-08-05 2021-01-08 广州小众环保科技有限公司 一种用于处理含重金属废水的海藻衍生物及其制备方法
CN109351350A (zh) * 2018-12-27 2019-02-19 安徽工业大学 一种乳液聚合法制备海藻酸钠微球吸附剂的方法
CN112387256A (zh) * 2020-10-21 2021-02-23 南京大学 一种吡啶胺基复合水凝胶吸附剂的制备方法及应用
CN113398901B (zh) * 2021-05-28 2022-11-08 广西大学 一种生物质基热敏仿生水凝胶吸附材料及其制备方法和应用

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