CATALYTIC WET PEROXIDE OXIDATION PROCESS WITH NEW Fe/Cu/Zr-PILLARED CLAYS DEVELOPED FROM NATURAL CLAY DEPOSITS OF KAZAKHSTAN

被引：1

作者：

Kalmakhanova, M. S. ^{[1
]}

de Tuesta, J. L. Diaz ^{[2
]}

Massalimova, B. K. ^{[1
]}

Nurlibaeva, A. N. ^{[1
]}

Darmenbaeva, A. S. ^{[1
]}

Kulbaeva, D. A. ^{[1
]}

机构：

[1] MKH Dulati Taraz State Univ, Dept Chem & Chem Engn, Taraz, Kazakhstan

[2] Inst Politecn Braganca, Ctr Invest Montanha CIMO, Braganca, Portugal

来源：

NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES CHEMISTRY AND TECHNOLOGY | 2020年 / 03期

关键词：

natural clays; pillared clays; catalytic wet peroxide oxidation; 4-nitrophenol; wastewater;

D O I：

10.32014/2020.2518-1491.38

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work deals with the development of materials based on natural clays and on pillared clays. The modification of natural clays with zirconium, zinc and iron ions allows to increase their performance as adsorbents or catalysts in the treatment of environmentally hazardous compounds found in wastewater. Clay-based materials were obtained from natural clays and assessed in the treatment of wastewater using model pollutants in aqueous solutions. The natural clays were collected from 3 different deposits of Kazakhstan and tested in the catalytic wet peroxide oxidation (CWPO) of 4-nitrophenol (4-NP) at mild conditions (50 degrees C, initial pH of 3.0, C4- NP = 5 g/L and C-clay = 2.5 g/L). Fe/Cu/Zr-pillared clays were developed from natural clays and also assessed in the CWPO of 4-NP. Complete removal of 4-NP was achieved after 2 h of reaction time with all pillared clays, and TOC removals up to 78 % after 8 h were reached at those conditions.

引用

页码：15 / 21

页数：7

共 26 条

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