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膨润土-二氧化钛复合材料对亚甲基蓝和罗丹明B脱色的吸附及光催化性能

Adsorption and photocatalytic performance of bentonite-titanium dioxide composites for methylene blue and rhodamine B decoloration.

作者信息

Laysandra Livy, Sari Meri Winda Masnona Kartika, Soetaredjo Felycia Edi, Foe Kuncoro, Putro Jindrayani Nyoo, Kurniawan Alfin, Ju Yi-Hsu, Ismadji Suryadi

机构信息

Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Kalijudan 37, Surabaya 60114, Indonesia.

Faculty of Pharmacy, Widya Mandala Surabaya Catholic University, Pakuwon City, Kalisari 1, Surabaya 60112, Indonesia.

出版信息

Heliyon. 2018 Jan 11;3(12):e00488. doi: 10.1016/j.heliyon.2017.e00488. eCollection 2017 Dec.

DOI:10.1016/j.heliyon.2017.e00488
PMID:29387819
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5772363/
Abstract

Bentonite - TiO composites were prepared by impregnation of TiO and bentonite, followed by microwave irradiation processes. The composites were characterized using FTIR, SEM, XRD, and nitrogen sorption methods. Anatase phase of TiO in all composites are observed through XRD diffraction peaks and surface morphology of the composites. The adsorption and photocatalytic capabilities of the composites were tested in liquid phase adsorption of methylene blue and Rhodamine B. The adsorption and photocatalytic degradation experiments were conducted in the presence or absence of UV light irradiation. Langmuir and Freundlich models were employed to correlate the experimental adsorption data, and it was found that Langmuir gave better performance in correlating the experimental data. Modification of Langmuir equation to accommodate photocatalytic degradation process was conducted, and the model could represent the experimental results very well.

摘要

通过将二氧化钛（TiO）浸渍到膨润土中，然后进行微波辐照工艺制备了膨润土 - TiO复合材料。使用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、X射线衍射（XRD）和氮吸附方法对复合材料进行了表征。通过XRD衍射峰和复合材料的表面形态观察到所有复合材料中TiO的锐钛矿相。在亚甲基蓝和罗丹明B的液相吸附中测试了复合材料的吸附和光催化能力。吸附和光催化降解实验在有或没有紫外光照射的情况下进行。采用朗缪尔（Langmuir）和弗伦德里希（Freundlich）模型关联实验吸附数据，发现朗缪尔模型在关联实验数据方面表现更好。对朗缪尔方程进行了修正以适应光催化降解过程，该模型能够很好地代表实验结果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/bc19112a92a7/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/05fa26ab0aad/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/372ccae4f983/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/9d726a8136c5/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/831b38e41abb/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/7d76f73a2298/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/c0a6f98aab08/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/c8ac094e4514/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/bc19112a92a7/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/05fa26ab0aad/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/372ccae4f983/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/9d726a8136c5/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/831b38e41abb/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/7d76f73a2298/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/c0a6f98aab08/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/c8ac094e4514/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3670/5772363/bc19112a92a7/gr8.jpg

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[2]
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[3]
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[4]
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[5]
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[6]
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[7]
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本文引用的文献

[1]
A study on the adsorption of methylene blue onto gum ghatti/TiO2 nanoparticles-based hydrogel nanocomposite.

Int J Biol Macromol. 2016-3-17

[2]
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Environ Monit Assess. 2011-3-10

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