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Srivastava N, Srivastava M, Alhazmi A, Mohammad A, Khan S, Pal DB, Haque S, Singh R, Mishra PK, Gupta VK. Sustainable green approach to synthesize Fe 3O 4/α-Fe 2O 3 nanocomposite using waste pulp of Syzygium cumini and its application in functional stability of microbial cellulases. Sci Rep 2021; 11:24371. [PMID: 34934128 PMCID: PMC8692407 DOI: 10.1038/s41598-021-03776-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 11/29/2021] [Indexed: 01/05/2023] Open
Abstract
Synthesis of nanomaterials following green routes have drawn much attention in recent years due to the low cost, easy and eco-friendly approaches involved therein. Therefore, the current study is focused towards the synthesis of Fe3O4/α-Fe2O3 nanocomposite using waste pulp of Jamun (Syzygium cumini) and iron nitrate as the precursor of iron in an eco-friendly way. The synthesized Fe3O4/α-Fe2O3 nanocomposite has been extensively characterized through numerous techniques to explore the physicochemical properties, including X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, Ultraviolet-Vis spectroscopy, field emission scanning electron microscope, high resolution transmission electron microscope and vibrating sample magnetometer. Further, efficiency of the Fe3O4/α-Fe2O3 nanocomposite has been evaluated to improve the incubation temperature, thermal/pH stability of the crude cellulase enzymes obtained from the lab isolate fungal strain Cladosporium cladosporioides NS2 via solid state fermentation. It is found that the presence of 0.5% Fe3O4/α-Fe2O3 nanocomposite showed optimum incubation temperature and thermal stability in the long temperature range of 50–60 °C for 15 h along with improved pH stability in the range of pH 3.5–6.0. The presented study may have potential application in bioconversion of waste biomass at high temperature and broad pH range.
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Affiliation(s)
- Neha Srivastava
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, U.P., 221005, India.
| | - Manish Srivastava
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, U.P., 221005, India
| | - Alaa Alhazmi
- Department of Medical Laboratory Technology, Jazan University, Jazan, Saudi Arabia.,SMIRES for Consultation in Specialized Medical Laboratories, Jazan University, Jazan, Saudi Arabia
| | - Akbar Mohammad
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk, 38541, South Korea
| | - Saif Khan
- Department of Basic Dental and Medical Sciences, College of Dentistry, University of Ha'il, Ha'il, 2440, Saudi Arabia
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, 45142, Saudi Arabia.,Faculty of Medicine, Bursa Uludağ University, Görükle Campus, Nilüfer, Bursa, 16059, Turkey
| | - Rajeev Singh
- Department of Environmental Studies, Satyawati College, University of Delhi, New Delhi, Delhi, 110052, India
| | - P K Mishra
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, U.P., 221005, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK. .,Center for Safe and Improved Food, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK.
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