PANI/Bi2O3 polymeric nanocomposite for the reduction of 4-nitrophenol
- Title
- PANI/Bi2O3 polymeric nanocomposite for the reduction of 4-nitrophenol
- Creator
- Joseph G.; Pinheiro D.; Krishna Mohan M.; Devi Kalathiparambil Rajendra Pai S.
- Description
- Nitro-aromatics pollute the aquatic environment and reach human beings via drinking water. 4-Nitrophenol (4-NP) is the most common pollutant among them and can be reduced to non-toxic 4-aminophenol in the presence of sodium borohydride (NaBH4). Polyaniline/bismuth oxide (PANI/Bi2O3) nanocomposite is synthesized from aniline and Bi2O3 by chemical oxidative polymerization. The composition and structural properties of PANI/Bi2O3 composite are identified by various characterization methods like X-ray powder diffraction, fourier transform infrared spectroscopy, thermogravimetric analysis , and zeta potential analysis. The synthesized PANI/Bi2O3 shows high catalytic efficiency towards the reduction of 4-NP in the presence of NaBH4 under optimized reaction conditions. The numerous active sites on the composite and the presence of PANI/Bi2O3 interface are the reasons for the reduction of 4-NP to 4-aminophenol. A complete degradation is achieved in 15min with 0.1g of the composite. This nanocomposite shows good stability for five cycles without losing efficiency. PANI/Bi2O3 possesses a high reduction capacity and can be used to reduce other nitro organic pollutants in water. The aim of the study is to study the effective catalytic reduction of 4-NP using PANI/Bi2O3. Graphical abstract: [Figure not available: see fulltext.] 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
- Source
- Polymer Bulletin, Vol-80, No. 8, pp. 8467-8481.
- Date
- 2023-01-01
- Publisher
- Springer Science and Business Media Deutschland GmbH
- Subject
- 4-Nitrophenol; Nanocomposites; PANI/Bi2O3; Reduction
- Coverage
- Joseph G., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Pinheiro D., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Krishna Mohan M., Department of Sciences and Humanities, School of Engineering and Technology, CHRIST (Deemed to be University), Kumbalagodu, Mysore Road, Karnataka, Bangalore, 560074, India; Devi Kalathiparambil Rajendra Pai S., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India
- Rights
- Restricted Access
- Relation
- ISSN: 1700839; CODEN: POBUD
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Joseph G.; Pinheiro D.; Krishna Mohan M.; Devi Kalathiparambil Rajendra Pai S., “PANI/Bi2O3 polymeric nanocomposite for the reduction of 4-nitrophenol,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/14147.