Preparation of TiO2/cellulose nanocomposites as antibacterial bio-adsorbents for effective phosphate removal from aqueous medium
Article
Article Title | Preparation of TiO2/cellulose nanocomposites as antibacterial bio-adsorbents for effective phosphate removal from aqueous medium |
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ERA Journal ID | 2223 |
Article Category | Article |
Authors | Zong, Enmin (Author), Wang, Chen (Author), Yang, Jiayao (Author), Zhu, Hangxuan (Author), Jiang, Shengtao (Author), Liu, Xiaohuan (Author) and Song, Pingan (Author) |
Journal Title | International Journal of Biological Macromolecules |
Journal Citation | 182, pp. 434-444 |
Number of Pages | 11 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0141-8130 |
1879-0003 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.ijbiomac.2021.04.007 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0141813021007637 |
Abstract | The design of environmentally benign bio-adsorbents for the removal of phosphate from aqueous medium was an economic and effective way for controlling eutrophication. Herein, we prepared three kinds of TiO2/cellulose (CE-Ti) nanocomposites by a facile hydrolysis-precipitation method, and used them as antibacterial bio-adsorbents for the removal of phosphate from aqueous medium. Multiple techniques including Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and thermogravimetric analysis (TGA) were employed to characterize the nanostructure and characteristics of the prepared CE-Ti nanocomposite. The adsorption capacity of the CE-Ti was 19.57 mg P g−1 according to the Langmuir model, which was 6 times higher than that of CE. Importantly, the bacterial inhibition zone of the CE-Ti was 2.88 mm (that of CE was 0 mm), indicating that CE-Ti had good antibacterial activity that could reduce the attachment of the microorganism to the surface of CE-Ti, which was suitable for long-term phosphate removal. Moreover, the CE-Ti had good adsorption selectivity and anti-interference capability, according to interfering ions and ion strength experiments. Furthermore, Ti4+ leakage tests suggested that CE-Ti was highly stable under acidic, neutral and alkali conditions. These results indicated that the CE-Ti nanocomposite could be utilized as a promising antibacterial bio-adsorbent for effective phosphate removal from aqueous medium. |
Keywords | Cellulose; Titanium oxides; Nanocomposite; Antibacterial bio-adsorbent; Phosphate removal |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340204. Inorganic green chemistry |
401106. Waste management, reduction, reuse and recycling | |
401199. Environmental engineering not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Taizhou University, China |
Zhejiang A & F University, China | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6vv7/preparation-of-tio2-cellulose-nanocomposites-as-antibacterial-bio-adsorbents-for-effective-phosphate-removal-from-aqueous-medium
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