Introducing an alternate conjugated material for enhanced lead(II) capturing from wastewater
Introducing an alternate conjugated material for enhanced lead(II) capturing from wastewater
复制标题
DOI：
10.1016/j.jclepro.2019.03.241
复制
发表时间：
2019-07-01
影响因子：
11.1
通讯作者：
Sheikh, Md Chanmiya
中科院分区：
文献类型：
--
作者：
Awual, Md Rabiul;Islam, Aminul;Sheikh, Md Chanmiya
由于来自工业废水生产的大量含铅（Pb（II））废水，欢迎创新材料以最大限度地降低污染水平。假设介孔共轭吸附剂（MpCA）的制造，新的有机配体的合成，然后随后受损的多孔载体材料的直接制造方法选择性光学监测和吸附铅（Pb（II））污染的沃茨。系统地表征了MpCA以了解具有高表面积的介孔均匀性。在pH为5.50时，MpCA对Pb（II）的捕集效果较好。其他实验参数，包括接触时间，检测限，颜色优化，浓度效应的吸附平衡和最高吸附容量进行了定义。结果证实，MpCA不受信号强度中现有抗衡离子而不是Pb（II）的影响。MpCA对低浓度Pb（II）的检测限为0.17 μ g/L，最大吸附去除量为192.16 mg/g。不同的外来离子并没有降低对Pb（II）的去除能力，在此pH值下，M（p）CA对其他离子几乎没有吸附能力，这是M（p）CA对Pb（II）的超高效特性。还评价了解吸实验以确认所提出的MpCA吸附剂的环境相容性。用0.15 M HCl酸将Pb（II）完全解吸，然后在用水洗涤后准备在下一个循环中重复使用，并且能够在Pb（II）监测和吸附操作的几个循环中重复使用。因此，提出的M（p）CA是一种替代的新型共轭材料，用于从污染沃茨中强化Pb（II）修复以及生产用于水处理的增值吸附剂。(C)2019爱思唯尔有限公司版权所有。
Due to the huge amount of lead (Pb(II)) containing wastewater from the industrial effluent production, an innovative material is welcome to minimize the contamination level. Assuming mesoporous conjugated adsorbent (MpCA) fabrication, the novel organic ligand was synthesized and then subsequently impaired onto the porous carrier materials by direct fabrication approach for selective optical monitoring and adsorption of lead (Pb(II)) from contaminated waters. The MpCA was systematically characterized to understand the mesoporous homogeneity with high surface area. The application of Pb(II) capturing by MpCA was explored at pH 5.50 with exhibition of significant color. The other experimental parameters, including contact time, limit detection, color optimization, concentration effects for adsorption equilibrium and highest adsorption capacity were defined. The results were confirmed that the MpCA was not affected with the existing counter-ion in the signal intensity rather than the Pb(II). The MpCA could monitor low concentration Pb(II) as the detection limit was 0.17 mu g/L, and the adsorption of highest removal capacity were 192.16 mg/g. The diverse foreign ion was not reduced the removal capacity of Pb(II), and the M(p)CA has approximately no adsorption capacity for other ions at this pH, which was the excessive efficient particular of Pb(II) using of the proposed M(p)CA. Desorption experiments were also evaluated to confirm the environmental compatibility of the proposed MpCA adsorbents. The Pb(II) was completely desorbed with 0.15 M HCl acid and then ready to reuse in the next cycle after washing with water and able to reuse in several cycles of Pb(II) monitoring and adsorption operations. Thus, the proposed M(p)CA is an alternative novel conjugated materials for enhanced Pb(II) remediation from contaminated waters as well as the production of value-added adsorbent for water treatments. (C) 2019 Elsevier Ltd. All rights reserved.