相关实验视频

Updated: Jul 12, 2025

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Published on: April 22, 2016

在现场改造的纳米纤维素/酸水凝复合珠,用于净化采矿废水

Dimitrios Georgouvelas¹, Hani Nasser Abdelhamid^1,2, Ulrica Edlund³

¹Division of Materials and Environmental Chemistry, Stockholm University Svante Arrhenius väg 16C Stockholm SE-10691 Sweden aji.mathew@mmk.su.se +468161256.

Nanoscale advances

|October 26, 2023

概括

这项研究开发了纳米纤维素/酸水凝珠用于水处理. 这些生物基吸附剂有效地去除高水流量的甲蓝和Cd2+等阴离子污染物.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
化学工程是化学工程的重要组成部分.

背景情况:

生物基吸附剂提供可持续性,但在可重复使用性和水流量方面面临挑战.
纳米纤维素和酸盐复合材料显示出对水处理应用的前景.

研究的目的:

开发和描述纳米纤维素/酸盐复合水凝珠,以有效地去除阴性污染物.
为了提高吸附性质,用于高容量,高流量水处理.

主要方法:

制备纳米纤维素/酸盐复合液凝珠 (直径3-4毫米,多孔度99%).
通过在位TEMPO介导的氧化进行修改,以引入碳素基.
使用紫外线光谱和元素分析 (EDS,XPS) 评估污染物去除.
使用标准液压导电性测量的水流的评估.

主要成果:

经过修改的珠子被证明可以有效地去除甲蓝 (91%) 和Cd2+.
在修改后观察到离子吸附能力增加了3倍.
保持了17000Lh-1m-2bar-1的高水吞吐率. 保持了高水吞吐率. 保持了高水吞吐率.
珠子适用于用于大容量水处理的3D柱子过器.

结论:

通过TEMPO介导的氧化有效地功能化了纳米纤维素/酸盐珠子,用于增强化污染物去除.
开发的水凝珠为净化水提供了可持续和高效的解决方案.
这些珠子在大气压下对工业规模的水处理应用具有前景.

更多相关视频

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Published on: December 6, 2015

Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel

Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel

Published on: June 29, 2017

相关概念视频

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...