Photodegradation of toxic dye using Gum Arabic-crosslinked-poly(acrylamide)/Ni(OH)2/FeOOH nanocomposites hydrogel
Photodegradation of toxic dye using Gum Arabic-crosslinked-poly(acrylamide)/Ni(OH)2/FeOOH nanocomposites hydrogel
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DOI：
10.1016/j.jclepro.2019.118263
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发表时间：
2019-12-20
影响因子：
11.1
通讯作者：
Alothman, Zeid A.
中科院分区：
文献类型：
--
作者：
Naushad, Mu.;Sharma, Gaurav;Alothman, Zeid A.
健康的环境是每一个生命体成长和发展所必需的。由于不同行业的无机和有机污染物排放而导致的生态系统恶化是主要问题之一。这些水源对我国水资源的影响最大。文献研究表明，从这个时代开始，人类正在使用各种天然和合成材料进行水净化。随着材料的逐步发展，人们不断对这些材料进行改进，寻找和制造新的替代材料.本研究涉及利用简单的共聚技术制备新型阿拉伯胶交联聚丙烯酰胺/Ni（OH）（2）/FeOOH纳米复合水凝胶（GA-cl-poly（AAm）/Ni（OH）（2）/FeOOH NCH）。采用透射电子显微镜（TEM）、X射线衍射（XRD）、热重分析（TGA）、傅里叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）等现代分析手段对GA-cl-poly（AAm）/Ni（OH）（2）/FeOOH NCH的结构进行了分析。HRTEM和SEM显微照片清楚地证明了Ni（OH）（2）和FeOOH颗粒在纳米水凝胶基质内的吞没。以亚甲基蓝染料为目标染料，研究了GA-cl-poly（AAm）/Ni（OH）（2）/FeOOH NCH复合光催化剂的光催化降解性能。对接触时间、pH值、亚甲基蓝浓度、NCH用量、H2 O2浓度等工艺参数进行了优化。结果表明，在优化的条件下，GA-cl-poly（AAm）/Ni（OH）（2）/FeOOH NCH催化剂在H2 O2存在下对亚甲基蓝的降解率可达75%。(C)2019爱思唯尔有限公司版权所有。
Healthy environment is necessary for growth and development of every living being. The deterioration of ecosystems due to discharge of inorganic and organic pollutants from different industries is one of the major problems. The major impact of these sources has been on our water resources. The literature studies revealed that from the age's humans are using various natural and synthetic materials for water purification. With Gradual development, these materials are modified and newer alternative materials are searched and fabricated. The present study relates to fabrication of novel Gum arabic-crosslinked-poly(acrylamide)/Ni(OH)(2)/FeOOH nanocomposite hydrogel (GA-cl-poly(AAm)/Ni(OH)(2)/FeOOH NCH) using simple copolymerization technique. The structural analysis of GA-cl-poly(AAm)/Ni(OH)(2)/FeOOH NCH was performed by employing diverse modern analytical instrumentations such as transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The HRTEM and SEM micrographs clearly demonstrated the engulfment of Ni(OH)(2) and FeOOH particles within the nanohydrogel matrix. The photocatalytic performance of synthesized GA-cl-poly(AAm)/Ni(OH)(2)/FeOOH NCH was investigated for photodegradation of methylene blue dye. All the parameters such as contact time, pH, concentration of methylene blue, NCH dosage and concentration of H2O2 were optimized. It was noted that 75% methylene blue was degraded at optimized condition using GA-cl-poly(AAm)/Ni(OH)(2)/FeOOH NCH in presence of H2O2. (C) 2019 Elsevier Ltd. All rights reserved.