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Bacterial Cellulose...
Bacterial Cellulose Aerogels Derived from Pineapple Peel Waste for the Adsorption of Dyes
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- Le, Ha Vu (författare)
- Vietnam National University,Ho Chi Minh City University of Technology (HCMUT)
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- Dao, Nghia Thi (författare)
- Vietnam National University,Ho Chi Minh City University of Technology (HCMUT)
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- Bui, Ha Truc (författare)
- Vietnam National University,Ho Chi Minh City University of Technology (HCMUT)
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- Le, Phung Thi Kim (författare)
- Ho Chi Minh City University of Technology (HCMUT),Vietnam National University
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- Le, Kien Anh (författare)
- Vietnam Academy of Science and Technology
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- Tran, An Thi Tuong (författare)
- Vietnam National University,Ho Chi Minh City University of Technology (HCMUT)
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- Nguyen, Khoa Dang (författare)
- Ho Chi Minh City University of Technology (HCMUT),Vietnam National University
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- Nguyen, Hanh Huynh Mai (författare)
- Vietnam National University,Ho Chi Minh City University of Technology (HCMUT)
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- Ho, Hoang Phuoc, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: ACS Omega. - 2470-1343. ; 8:37, s. 33098-34195
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Valorization of pineapple peel waste is an attractive research topic because of the huge quantities of this byproduct generated from pineapple processing industries. In this study, the extract from pineapple waste was collected to produce a hydrogel-like form containing bacterial cellulose fibers with a three-dimensional structure and nanoscale diameter by the Acetobacter xylinum fermentation process. The bacterial cellulose suspension was subsequently activated by freeze-drying, affording lightweight aerogels as potential adsorbents in wastewater treatment, in particular the adsorptive removal of organic dyes. Intensive tests were carried out with the adsorption of methylene blue, a typical cationic dye, to investigate the influence of adsorption conditions (temperature, pH, initial dye concentration, time, and experiment scale) and aerogel-preparation parameters (grinding time and bacterial cellulose concentration). The bacterial cellulose-based aerogels exhibited high adsorption capacity not only for methylene blue but also for other cationic dyes, including malachite green, rhodamine B, and crystal violet (28-49 mg/g). However, its activity was limited for most of the anionic dyes, such as methyl orange, sunset yellow, and quinoline yellow, due to the repulsion of these anionic dyes with the aerogel surface, except for the case of congo red. It is also an anionic dye but has two amine groups providing a strong interaction with the hydroxyl group of the aerogel via hydrogen bonding. Indeed, the aerogel has a substantially large congo red-trapping capacity of 101 mg/g. Notably, the adsorption process exhibited similar performances, upscaling the solution volume to 50 times. The utilization of abundant agricultural waste in the simple aerogel preparation to produce a highly efficient and biodegradable adsorbent is the highlight of this work.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
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Le, Ha Vu
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Dao, Nghia Thi
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Bui, Ha Truc
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Le, Phung Thi Ki ...
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Le, Kien Anh
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Tran, An Thi Tuo ...
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Nguyen, Khoa Dan ...
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Nguyen, Hanh Huy ...
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Ho, Hoang Phuoc, ...
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Chalmers tekniska högskola