AgO-AlO-ZrO 负载在 rGO 上作为吸附剂用于从水溶液中去除刚果红。

Utilization of AgO-AlO-ZrO decorated onto rGO as adsorbent for the removal of Congo red from aqueous solution.

机构信息

College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab. for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, PR China; Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia; International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173212, Himachal Pradesh, India.

Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.

出版信息

Environ Res. 2021 Jun;197:111179. doi: 10.1016/j.envres.2021.111179. Epub 2021 Apr 15.

DOI:10.1016/j.envres.2021.111179

PMID:33865823

Abstract

The water resources contamination in an alarming concern for sustainable environment. This has led to development of new technologies and materials for waste water detoxification. In the present study, we have fabricated novel trimetallic based mixed oxides decorated reduced graphene oxide (rGO) composite using facile microwave method and utilized it as an adsorbent for the removal of congo red dye from aqueous solution. The final composite showed highly agglomerated metal oxides present on the rGO surface. The high surface area and activity of the synthesized adsorbent resulted in its high adsorption capacity of 333.32 mg/g for congo red. The Langmuir model better explained the isotherm data indicating the monolayer adsorption of congo red molecules onto AgO-AlO-ZrO/rGO surface. The grander adsorption ability of AgO-AlO-ZrO/rGO towards organic dye indicate its probable utilization in the removal of other dyes also from wastewater.

摘要

水资源污染是可持续环境面临的一个令人震惊的问题。这导致了新技术和材料的发展，用于废水解毒。在本研究中，我们使用简便的微波方法制备了新型三元混合金属氧化物修饰还原氧化石墨烯(rGO)复合材料，并将其用作从水溶液中去除刚果红染料的吸附剂。最终的复合材料显示出高度团聚的金属氧化物存在于 rGO 表面。合成吸附剂的高表面积和活性导致其对刚果红的高吸附容量为 333.32 mg/g。Langmuir 模型更好地解释了等温线数据，表明刚果红分子单层吸附在 AgO-AlO-ZrO/rGO 表面上。AgO-AlO-ZrO/rGO 对有机染料的更大吸附能力表明，它可能也可用于从废水中去除其他染料。