Mesoporous silica from batik sludge impregnated with aluminum hydroxide for the removal of bisphenol A and ibuprofen

被引:26
|
作者
Choong, Choe Earn [1 ]
Ibrahim, Shaliza [2 ]
Basirun, Wan Jeffrey [3 ,4 ]
机构
[1] Univ Malaya, Fac Engn, Dept Civil Engn, Kuala Lumpur 50603, Malaysia
[2] Univ Malaya, IOES, Kuala Lumpur 50603, Malaysia
[3] Univ Malaya, Fac Sci, Dept Chem, Kuala Lumpur 50603, Malaysia
[4] Univ Malaya, Inst Postgrad Studies, Inst Nanotechnol & Catalysis Res NanoCat, Kuala Lumpur 50603, Malaysia
关键词
Batik sludge; Bisphenol A; Ibuprofen; Adsorption; Silica; ACTIVATED CARBON; WASTE-WATER; ADSORPTIVE DESULFURIZATION; DIBENZOTHIOPHENE; ADSORBENTS; SORPTION; OXIDE; PHARMACEUTICALS; NANOCOMPOSITE; DEGRADATION;
D O I
10.1016/j.jcis.2019.01.071
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The present study reports the removal of Bisphenol A (BPA) and Ibuprofen (IBP) using adsorbents prepared from batik sludge. The calcite sludge-aluminum hydroxide (CAl) adsorbent was prepared by calcination and followed by aluminum hydroxide impregnation. The batik sludge and prepared adsorbents were characterized by FESEM, TGA, XRD, FTIR and BET techniques. The maximum adsorption capacity, adsorption time, different initial solution pH, ionic strength and regeneration study of the adsorbents were also investigated. Furthermore, the sorption behavior of the pollutants were studied by the Langmuir and Freundlich isotherms. The deposition of Al(OH)(3) enhanced the BPA and IBP adsorption capacity on the CAl surface. The maximum removal capacity of BPA and Ibuprofen were 83.53 mg g(-1) and 34.96 mg g(-1) for the CAl adsorbent. In addition, the kinetic data for BPA and IBP were fitted to the pseudo first order, pseudo second order, Elovich, parabolic diffusion and power function equations to understand the sorption behavior. The adsorption behavior of BPA and IBP was mainly chemisorption. This study shows that CAl is a promising adsorbent for the removal of BPA and IBP. (C) 2019 Elsevier Inc. All rights reserved.
引用
收藏
页码:12 / 17
页数:6
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