CN108246261A - 一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法 - Google Patents

一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法 Download PDF

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CN108246261A
CN108246261A CN201810084195.0A CN201810084195A CN108246261A CN 108246261 A CN108246261 A CN 108246261A CN 201810084195 A CN201810084195 A CN 201810084195A CN 108246261 A CN108246261 A CN 108246261A
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杨立业
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Zhejiang Ocean University ZJOU
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Abstract

一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，所述的制备方法包括以下步骤：(a)选用1‑5％羧甲基壳聚糖溶液与1‑5％海藻酸钠溶液，按1:1‑8的体积比进行混合制成混合溶液；(b)将混合溶液滴入到1‑20％CaCl2溶液中，在30‑80℃，以800‑1200rpm的转速搅拌20min‑100min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球；它具有制备工艺简单，原料来源广，不仅能吸附污水中有害重金属，而且能方便移除，提高企业的经济效益及社会效益等特点。

Description

一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备 方法
技术领域
本发明涉及的是一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，属于污水处理吸附剂制备技术领域。
背景技术
随着工业带来的环境污染的加剧，水污染已成为全球化问题，水处理成为世界各国环境保护工作的重点。
目前，处理重金属的方法有很多，包括：混凝沉淀法、吸附法、氧化法、离子交换法、膜分离法、生物方法、光化学技术等。但是对于饮用水的处理，由于这些有害离子的含量通常很低，所以很多方法的应用受到限制，如混凝沉淀法更适合于污水处理；氧化还原法必须连续使用而且一些氧化剂对水也存在污染；生物法需要较长时间才能见效；离子交换法和膜分离法成本较高；光催化法依赖光源等设备而且制备催化剂成本较高。
发明内容
本发明的目的在于克服现有技术存在的不足，而提供一种制备工艺简单，原料来源广，不仅能吸附污水中有害重金属，而且能方便移除，提高企业的经济效益及社会效益的用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法。
本发明的目的是通过如下技术方案来完成的，一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，所述的制备方法包括以下步骤：
(a)选用1-5％羧甲基壳聚糖溶液与1-5％海藻酸钠溶液，按1:1-8的体积比进行混合制成混合溶液；
(b)将混合溶液滴入到1-20％CaCl2溶液中，在30-80℃，以800-1200rpm的转速搅拌20min-100min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球。
作为优选：所述的步骤(a)中，选用3％羧甲基壳聚糖溶液与3％海藻酸钠溶液，按1:5的体积比进行混合制成混合溶液；
所述的步骤(b)中，将混合溶液滴入到10％CaCl2溶液中，在50℃，以1000rpm的转速搅拌50min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球。
壳聚糖具有环境相容性好、可再生、资源丰富以及高度可降解性等优点，在水处理领域已引起越来越多的关注。海藻酸钠具有低毒性，良好的生物相容性、增稠性、成膜性、凝胶性能以及高度可降解性，并且价廉易得，这些独特性能使其在众多领域中获得了广泛应用，而其内部的多孔结构使其成为良好的吸附材料。
本发明主要利用基于海藻酸钠壳聚糖的各种微球吸附污水中砷铬离子，微球处理重金属之后，可以对其进行分离处理，并进行洗脱循环利用，既能降低污水中重金属含量，又可提高企业经济效益。
本发明具有制备工艺简单，原料来源广，不仅能吸附污水中有害重金属，而且能方便移除，提高企业的经济效益及社会效益等特点。
具体实施方式
下面将结合具体实施例对本发明作详细的介绍：本发明所述的一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，所述的制备方法包括以下步骤：
(a)选用1-5％羧甲基壳聚糖溶液与1-5％海藻酸钠溶液，按1:1-8的体积比进行混合制成混合溶液；
(b)将混合溶液滴入到1-20％CaCl2溶液中，在30-80℃，以800-1200rpm的转速搅拌20min-100min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球。
作为一种优选的实施例：本发明所述的一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，所述的制备方法包括以下步骤：
(a)选用3％羧甲基壳聚糖溶液与3％海藻酸钠溶液，按1:5的体积比进行混合制成混合溶液；
(b)将混合溶液滴入到10％CaCl2溶液中，在50℃，以1000rpm的转速搅拌50min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球。
海藻酸钠是有良好吸附性能的高分子絮凝剂，还有大量的羧基（-COOH）和羟基（-OH），能与Ca2+、Fe3+、Ba2+等阳离子反应形成稳定的凝胶；壳聚糖分子链上含有大量的伯氨基，若将这两种天然高分子材料经过共混、交联等改性后制备出壳聚糖海藻酸钠改性聚合物，作为生物吸附聚合物，有可能发挥二者各自的优点，产生性能上的协同作用，具有分子量分布广，活性基团点多，结构多样化、吸附性能好、安全无毒、可完全生物降解、原料来源丰富，价格低廉等特点，将是一种有发展前景的“生物吸附聚合物”。
本发明的其它实施例可以在上述公开数值的范围基础上，进行数值的简单替换，可以获得无数个具体实施例，本领域技术人员在了解本发明的基础上，能够方便地实施本发明。

Claims (2)

1.一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，其特征在于所述的制备方法包括以下步骤：
(a)选用1-5％羧甲基壳聚糖溶液与1-5％海藻酸钠溶液，按1:1-8的体积比进行混合制成混合溶液；
(b)将混合溶液滴入到1-20％CaCl2溶液中，在30-80℃，以800-1200rpm的转速搅拌20min-100min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球。
2.根据权利要求1所述的用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法，其特征在于：
所述的步骤(a)中，选用3％羧甲基壳聚糖溶液与3％海藻酸钠溶液，按1:5的体积比进行混合制成混合溶液；
所述的步骤(b)中，将混合溶液滴入到10％CaCl2溶液中，在50℃，以1000rpm的转速搅拌50min，收集小球，蒸馏水多次洗涤，冷冻干燥或真空干燥制成水凝胶微球。
CN201810084195.0A 2018-01-29 2018-01-29 一种用于重金属砷吸附的海藻酸钠/壳聚糖水凝胶微球制备方法 Pending CN108246261A (zh)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109261138A (zh) * 2018-10-29 2019-01-25 浙江理工大学 一种用于重金属离子吸附的超支化聚酰胺改性海藻酸钠微球及其制备方法
CN109894095A (zh) * 2019-03-28 2019-06-18 北京工业大学 一种含铁锰氧化物的海藻酸钠-壳聚糖复合凝胶微球吸附除砷材料及其制备方法
CN110102267A (zh) * 2019-05-27 2019-08-09 华南理工大学 一种铝基MOFs/壳聚糖复合微球及其制备方法和应用
CN112777673A (zh) * 2020-12-25 2021-05-11 长春工业大学 一种降低水中重金属铁离子浓度的方法
CN113372919A (zh) * 2020-04-02 2021-09-10 汤彪 一种用于土壤污染的缓释型修复剂
CN114700046A (zh) * 2022-03-31 2022-07-05 华南理工大学 一种吸附结晶紫染料水凝胶微球及其制备方法与应用
CN114713199A (zh) * 2022-03-31 2022-07-08 华南理工大学 一种龙须菜多糖凝胶球及其制备方法与应用
CN117844286A (zh) * 2024-03-08 2024-04-09 南京师范大学 一种教学用环保型美术颜料及其制备方法
CN117844286B (zh) * 2024-03-08 2024-05-24 南京师范大学 一种教学用环保型美术颜料及其制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102161781A (zh) * 2011-02-18 2011-08-24 中国广州分析测试中心 一种吸附重金属离子的改性壳聚糖材料及其制备方法
CN103804721A (zh) * 2012-11-09 2014-05-21 扬州鸿信生物制品有限公司 一种改性壳聚糖材料制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102161781A (zh) * 2011-02-18 2011-08-24 中国广州分析测试中心 一种吸附重金属离子的改性壳聚糖材料及其制备方法
CN103804721A (zh) * 2012-11-09 2014-05-21 扬州鸿信生物制品有限公司 一种改性壳聚糖材料制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
雷莉: "壳聚糖/海藻酸钠吸附剂的制备及性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109261138A (zh) * 2018-10-29 2019-01-25 浙江理工大学 一种用于重金属离子吸附的超支化聚酰胺改性海藻酸钠微球及其制备方法
CN109894095A (zh) * 2019-03-28 2019-06-18 北京工业大学 一种含铁锰氧化物的海藻酸钠-壳聚糖复合凝胶微球吸附除砷材料及其制备方法
CN109894095B (zh) * 2019-03-28 2022-10-14 北京工业大学 一种含铁锰氧化物的海藻酸钠-壳聚糖复合凝胶微球吸附除砷材料及其制备方法
CN110102267A (zh) * 2019-05-27 2019-08-09 华南理工大学 一种铝基MOFs/壳聚糖复合微球及其制备方法和应用
CN110102267B (zh) * 2019-05-27 2021-10-01 华南理工大学 一种铝基MOFs/壳聚糖复合微球及其制备方法和应用
CN113372919A (zh) * 2020-04-02 2021-09-10 汤彪 一种用于土壤污染的缓释型修复剂
CN112777673A (zh) * 2020-12-25 2021-05-11 长春工业大学 一种降低水中重金属铁离子浓度的方法
CN114700046A (zh) * 2022-03-31 2022-07-05 华南理工大学 一种吸附结晶紫染料水凝胶微球及其制备方法与应用
CN114713199A (zh) * 2022-03-31 2022-07-08 华南理工大学 一种龙须菜多糖凝胶球及其制备方法与应用
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