Project's information
| Project's title | Treatment of p-nitrophenol residues in agricultural wastewater using cellulose aerogel materials from banana stems and water hyacinth |
| Project’s code | VAST07.04/22-23 |
| Research hosting institution | Institute of Chemical Technology |
| Project leader’s name | Nguyen Thi Thuy Van |
| Project duration | 01/01/2022 - 31/12/2023 |
| Project’s budget | 600 million VND |
| Classify | Grade B |
| Goal and objectives of the project | - Study to build the synthesis of cellulose aerogel from banana stem and water hyacinth as a catalyst carrier to solve the problem of environmental pollution and increase the economic efficiency of agricultural production chain.
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| Main results | - Investigated of affecting factors on the treatment process of raw materials and synthesized cellulose from banana stems and water hyacinth using the microwave method including: NaOH content, radiation time, H2O2 content. - Studied on the properties of cellulose obtained from banana stems and water hyacinth: Cellulose content, lignin content, hemicellulose, XRD, IR, TGA, SEM. - Investigated factors effecting on the synthesis process of cellulose aerogel from banana stems and water hyacinth: the ratio of cellulose:kymene, stirring and ultrasonic processes. - Investigated the physico-chemical properties of obtained cellulose aerogel from banana stems and water hyacinth: Porosity, density, SEM, TGA. - Investigated factors affecting on the synthesis process of Fe3O4@cellulose aerogel using microwave and studied their physicochemical properties. - Investigated factors affecting on the treatment process of PNP of Fe3O4/aerogel cellulose catalyst: Fe3O4 content, PNP concentration, H2O2 content. - Compared the treatment ability of Fe3O4 catalyst on PNP with and without cellulose aerogel carrier for both banana and water hyacinth materials. Investigated the durability of Fe3O4/cellulose aerogel catalyst during treatment process of PNP - Surveyed and evaluated the effectiveness of PNP treatment in real wastewater samples. Assessed the influence of other impurities (if any) in wastewater on the effectiveness of PNP treatment. |
| Novelty and actuality and scientific meaningfulness of the results | - Synthesis of cellulose aerogel materials from banana stems and water hyacinth is a new process that not only reduces environmental pollution but also creates valuable products, while increasing the value chain of agricultural production. Besides, extracting cellulose with microwave method aims to reduce the amount of chemicals released into the environment during the raw material processing step and the material synthesis process. Cellulose aerogel synthesized from banana and water hyacinth has not been studied before, the obtained material also has the same superior properties as materials obtained from previous materials, however the raw material source is waste agricultural products and plants leads to serious pollution is a very important and meaningful application for banana and water hyacinth treatment. - Fabrication of Fe3O4/aerogel cellulose material to treat PNP is a new process and unpublished product, with very high potential in the Fenton reaction process to treat PNP, due to its superior properties of the carrier: high porosity, very light, good carrying and dispersing of catalysts, mechanically and environmentally stable depending on the manufacturing method, easy to recover and reuse, and easy to be biodegradable. |
| Products of the project | - The technology research and development products: + Cellulose aerogel material sample (5 grams): The obtained cellulose aerogel has porosity of 98.8 0.3%, density of 0.013 0.003 g.cm-3. + Fe3O4/cellulose aerogel material sample (5 grams): Fe3O4/cellulose aerogel obtained from the process has a porosity of 98.2 0.02% and density of 0.039 0.001 g.cm-3. + Cellulose aerogel synthesis process: Detailed process with the best surveyed parameters. Obtained cellulose aerogel from a process has porosity of 99.8 0.3%, density of 0.013 0.003 g.cm-3. + Fe3O4/cellulose aerogel synthesis process: Detailed process with the best parameters surveyed. The Fe3O4/cellulose aerogel obtained from the process has a porosity of 98.2 0.02% and a density of 0.039 0.001 g.cm-3. Under defined conditions, after 100 minutes of reaction, the PNP conversion efficiency was over 92.0%. The catalyst is rather stable, after 5 cycles of use, the PNP conversion efficiency still reaches over 76.2% - Scientific papers: 02 papers on SCIE journals: 1. Nguyen Thi Thuy Van, Anh N. Phan, Vuong Chi Cuong, Nguyen Thi Truc Van, Ho Gia-Thien Thanh, Nguyen Quang Khai, Nguyen Tri, Tien-Thanh Nguyen, Xuan-Thanh Bui, Ky Phuong Ha Huynh, Enhanced heterogeneous Fenton degradation of p-nitrophenol by Fe3O4 nanoparticles decorated cellulose aerogel from banana stem." Environmental Technology & Innovation 30 (2023): 103041 (SCIE, Q1, IF= 7.8) 2. Nguyen Thi Thuy Van, Pag-asa Gaspillo, Ho Gia Thien Thanh, Nguyen Huynh Thao Nhi, Huynh Nhat Long, Nguyen Tri, Nguyen Thi Truc Van, Tien-Thanh Nguyen, Huynh Ky Phuong Ha. "Cellulose from the banana stem: optimization of extraction by response surface methodology (RSM) and charaterization." Heliyon 8.12 (2022): e11845 103041 (SCIE, Q1, IF= 4.0). - Intellectual Property (list): Title: Synthesis method of magnetic iron oxide nanoparticles on cellulose aerogel from banana stem cultures. Application number: 1-2022-07214; Decision Number: 2059w/QD-SHTT dated November 28, 2022 of the Intellectual Property Office, Viet Nam. |
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