利用来源于酒糟废弃物的超高比表面积活性炭高效去除阳离子染料。

Efficient removal of cationic dyes via activated carbon with ultrahigh specific surface derived from vinasse wastes.

机构信息

School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China.

出版信息

Bioresour Technol. 2021 Feb;322:124540. doi: 10.1016/j.biortech.2020.124540. Epub 2020 Dec 18.

DOI:10.1016/j.biortech.2020.124540

PMID:33348115

Abstract

In this work, a simple and feasible approach for converting waste vinasse generated from the alcohol industries into high value-added activated carbon (AC) was proposed. The obtained AC possessed abundant micropores with micropore volume of 0.9613 cm/g and ultrahigh specific surface areas (2015 m/g), indicating prominent adsorption capacity. The adsorption ability of AC to cationic methylene blue (MB) was investigated systematically. The resultant AC exhibited superior adsorption ability to MB with a maximum amount of 2251 mg/g, derived from its excellent pore textural features and abundant surface O-containing functional groups. Moreover, AC showed excellent removal efficiency for treating industrial polyacrylonitrile wastewater with 99% removal within 60 min. Our results provide great inspirations in solid waste treatment and their high value-added transformation, meanwhile exploit a promising application of AC for practical wastewater purification.

摘要

在这项工作中，提出了一种将酒精工业产生的废酒糟转化为高附加值活性炭（AC）的简单可行的方法。所得到的 AC 具有丰富的微孔，微孔体积为 0.9613cm/g，比表面积超高（2015m/g），表明具有突出的吸附能力。系统研究了 AC 对阳离子亚甲基蓝（MB）的吸附能力。所得 AC 对 MB 的吸附能力较强，最大吸附量为 2251mg/g，这源于其优异的孔结构特征和丰富的表面含 O 官能团。此外，AC 对处理工业聚丙烯腈废水具有优异的去除效率，在 60 分钟内去除率达到 99%。我们的研究结果为固体废物处理及其高附加值转化提供了重要启示，同时也为 AC 在实际废水净化方面的应用开辟了广阔前景。