生物量新型吸附剂用于去除苯酚和汞。

Biomass Novel Adsorbents for Phenol and Mercury Removal.

机构信息

Comprehensive Health Research Center (CHRC), 1150-082 Lisbon, Portugal.

Departamento de Química, Universidade de Évora, Escola de Ciências e Tecnologia, Rua Romão Ramalho n° 59, 7000-671 Évora, Portugal.

出版信息

Molecules. 2022 Oct 28;27(21):7345. doi: 10.3390/molecules27217345.

DOI:10.3390/molecules27217345

PMID:36364170

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9655624/

Abstract

This paper reports the use of activated carbons made from novel agriculture and industrial wastes, namely sunflower, vine shoots, and coffee endocarp, to remove two high-priority contaminants: phenol and mercury species (under different forms) from aqueous solutions. The activated carbons were used as prepared and also modified with nitric acid and triethylenediamine in order to explore additional adsorption mechanisms. The results showed an interesting potential of the materials to be used for water decontamination as indicated by the mercury uptake up to 1104 mg/g for Hg, 771 mg/g for [HgCl], 966 mg/g for HgCl and the maximum phenol adsorption capacity of 190 mg/g. The modification with triethylenediamine led to a significant increase in the phenol and mercury adsorption reaching an increment of 85% for phenol and 250% for Hg.

摘要

本文报道了使用新型农业和工业废物（向日葵、葡萄藤和咖啡豆内果皮）制备的活性炭，以去除两种高优先级污染物：水溶液中的苯酚和汞（以不同形式存在）。活性炭原样使用，也用硝酸和三乙烯二胺进行改性，以探索其他吸附机制。结果表明，这些材料在水净化方面具有很大的应用潜力，其汞吸附量高达 1104mg/g 用于 Hg，771mg/g 用于 [HgCl]，966mg/g 用于 HgCl，最大苯酚吸附容量为 190mg/g。用三乙烯二胺改性导致苯酚和汞的吸附显著增加，苯酚增加 85%，Hg 增加 250%。