纳米Fe3O4的制备及其辅助吸附重金属离子的特性

环境化学

纳米Fe3O4的制备及其辅助吸附重金属离子的特性

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关晓辉, 赵洁, 秦玉春. 纳米Fe3O4的制备及其辅助吸附重金属离子的特性[J]. 环境化学, 2005, 24(4): 409-412.

引用本文:

关晓辉, 赵洁, 秦玉春. 纳米Fe3O4的制备及其辅助吸附重金属离子的特性[J]. 环境化学, 2005, 24(4): 409-412.

GUAN Xiao-hui, ZHAO Jie, QIN Yu-chun. PREPARATION OF Fe3O4 NANO-PARTICLES AND ITS CHARACTER OF AUXILIARY ADSORPTION TO HEAVY METAL IONS[J]. Environmental Chemistry, 2005, 24(4): 409-412.

Citation:

GUAN Xiao-hui, ZHAO Jie, QIN Yu-chun. PREPARATION OF Fe3O4 NANO-PARTICLES AND ITS CHARACTER OF AUXILIARY ADSORPTION TO HEAVY METAL IONS[J]. Environmental Chemistry, 2005, 24(4): 409-412.

纳米Fe3O4的制备及其辅助吸附重金属离子的特性

1.
东北电力学院应用化学系, 吉林, 132012;
2.
东北大学资源与土木工程学院, 沈阳, 110004
基金项目:
吉林省教育厅科技基金资助项目(吉科教合字[2002]第36号)

PREPARATION OF Fe3O4 NANO-PARTICLES AND ITS CHARACTER OF AUXILIARY ADSORPTION TO HEAVY METAL IONS

1.
Department of Applied Chemistry, Northeast China Institute of Electric Power Engineering, Jilin, 132012;
2.
School of Resources and Civil Engineering, Northeastern University, Shenyang, 10004
Fund Project:

摘要: 采用自制半透膜水解法,以自制生物聚合铁为原料,以NaOH为沉淀剂,制备Fe3O4纳米粒子,并用XRD和TEM等方法对产物进行了表征,研究它对Pb2+,Cu2+及Cr(Ⅵ)的辅助吸附及分离特性.结果表明:Fe3O4纯度较高,平均粒度在15nm左右;利用Fe3O4的大比表面和表面原子配位不足及顺磁性的特点,将其与浮游球衣菌复合,提高了对重金属离子的吸附效果,该复合吸附剂经再生可重复使用;纳米Fe3O4粒子可成为浮游球衣菌的絮凝核心而有助于体系的澄清.
- Fe₃O₄ /
- 浮游球衣菌 /
- 吸附 /
- 重金属
Abstract: By hydrolization method with half permeable membrane, Fe3O4 nano-particles were prepared, using self made bio-polymeric ferric sulphate as raw materials and NaOH as sediment agent. The product was characterised by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Their characters of auxiliary adsorption and separation to heavy metal ions lead(Ⅱ), copper(Ⅱ) and chromium(Ⅳ) were studied. The results indicated that the purity of Fe3O4 was high and their average size was about 15nm. Based on the characters of huge surface area and lack of surface coordinate and paramagnetism of Fe3O4 nano-particles, composite Sphearotilus natans with Fe3O4 to improve their adsorption effect. The composite adsorbent can be reused by regeneration. Fe3O4 nano particles could become the coagulation cores of Sphearotilus natans and help the system turn into clarification.
- Fe₃O₄ /
- Sphearotilus natans /
- adsorption /
- heavy metal

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关晓辉, 赵洁, 秦玉春. 纳米Fe3O4的制备及其辅助吸附重金属离子的特性[J]. 环境化学, 2005, 24(4): 409-412.

引用本文:

关晓辉, 赵洁, 秦玉春. 纳米Fe3O4的制备及其辅助吸附重金属离子的特性[J]. 环境化学, 2005, 24(4): 409-412.

GUAN Xiao-hui, ZHAO Jie, QIN Yu-chun. PREPARATION OF Fe3O4 NANO-PARTICLES AND ITS CHARACTER OF AUXILIARY ADSORPTION TO HEAVY METAL IONS[J]. Environmental Chemistry, 2005, 24(4): 409-412.

Citation:

GUAN Xiao-hui, ZHAO Jie, QIN Yu-chun. PREPARATION OF Fe3O4 NANO-PARTICLES AND ITS CHARACTER OF AUXILIARY ADSORPTION TO HEAVY METAL IONS[J]. Environmental Chemistry, 2005, 24(4): 409-412.

纳米Fe3O4的制备及其辅助吸附重金属离子的特性

1. 东北电力学院应用化学系, 吉林, 132012;
2. 东北大学资源与土木工程学院, 沈阳, 110004

收稿日期: 2004-10-09

基金项目:

吉林省教育厅科技基金资助项目(吉科教合字[2002]第36号)

关键词:

Fe₃O₄ /
浮游球衣菌 /
吸附 /
重金属

摘要: 采用自制半透膜水解法,以自制生物聚合铁为原料,以NaOH为沉淀剂,制备Fe3O4纳米粒子,并用XRD和TEM等方法对产物进行了表征,研究它对Pb2+,Cu2+及Cr(Ⅵ)的辅助吸附及分离特性.结果表明:Fe3O4纯度较高,平均粒度在15nm左右;利用Fe3O4的大比表面和表面原子配位不足及顺磁性的特点,将其与浮游球衣菌复合,提高了对重金属离子的吸附效果,该复合吸附剂经再生可重复使用;纳米Fe3O4粒子可成为浮游球衣菌的絮凝核心而有助于体系的澄清.

English Abstract

PREPARATION OF Fe3O4 NANO-PARTICLES AND ITS CHARACTER OF AUXILIARY ADSORPTION TO HEAVY METAL IONS

1. Department of Applied Chemistry, Northeast China Institute of Electric Power Engineering, Jilin, 132012;
2. School of Resources and Civil Engineering, Northeastern University, Shenyang, 10004

Received Date: 2004-10-09

Fund Project:

Keywords:

Abstract: By hydrolization method with half permeable membrane, Fe3O4 nano-particles were prepared, using self made bio-polymeric ferric sulphate as raw materials and NaOH as sediment agent. The product was characterised by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Their characters of auxiliary adsorption and separation to heavy metal ions lead(Ⅱ), copper(Ⅱ) and chromium(Ⅳ) were studied. The results indicated that the purity of Fe3O4 was high and their average size was about 15nm. Based on the characters of huge surface area and lack of surface coordinate and paramagnetism of Fe3O4 nano-particles, composite Sphearotilus natans with Fe3O4 to improve their adsorption effect. The composite adsorbent can be reused by regeneration. Fe3O4 nano particles could become the coagulation cores of Sphearotilus natans and help the system turn into clarification.

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