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An efficient and sustainable synthesis of morpholino-1,4-dihydropyridine-2,3-dicarboxylates using recyclable SeO2/HAp catalyst. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Ali TE, Assiri MA. Ultrasound Assisted One-Pot Three-Component Reaction for Synthesis of Novel Functionalized 4-Thioxo-Pyrano[2,3-c]Pyrazoles, 5-Thioxo-Pyrano[2,3-d]Pyrimidines and 5-Thioxo-Pyrido[2,3-d]Pyrimidines Catalyzed by Triethylamine. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2108077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Tarik E. Ali
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Department of Chemistry, Faculty of Education, Ain Shams University, Cairo, Egypt
| | - Mohammed A. Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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3
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Kalpana K, Syed R, Saranya J, Rafi M, Kiran BR. Synthesis and Theoretical Study of Novel Imidazo[4,5-b]pyrazine-Conjugated Benzamides as Potential Anticancer Agents. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021090153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Satyanarayana MV, Reddy AG, Sandhya J, Mehta BK, Prasad KRS, Tej MB, Rao MVB. One Pot, Four-Component, and Green Synthesis of Novel 2-(2-Amino-7,7-dimethyl-5-oxo-4-phenyl-5,6,7,8-tetrahydro-4H-chromene-3-carbonyl)-2,3-dihydrophthalazine-1,4-dione Derivatives. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221070185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Satyanarayana MV, Mehta B, Prasad KRS, Rao MVB. 1-Butyl-3-methylimidazolium Tetrafluoroborate ([BMIM]BF4): An Efficient Ionic Liquid Medium for the Synthesis of Novel 2-(Oxazolo[5,4-b]pyridin-2-yl)-N-phenylbenzamides. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021020147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Abstract
Nanocellulose (NC) is a biomaterial with growing interest in the field of nanocomposites and sustainable materials. NC has various applications including biodegradable materials, reinforcing agents, packaging films, transpiring membranes and medical devices. Among the many applications, the use of NC functionalized with organic and inorganic groups has found wide use as a catalyst in chemical transformations. The goal of this review is to collect the current knowledge on its catalytic applications for chemical groups conversion. We have chosen to organize the manuscript according to subdivision of NC into Bacterial Nanocellulose (BNC), Cellulose Nanocrystals (CNCs), and Cellulose Nanofibers (CNFs) and their role as inorganic- and organic-functionalized NC-catalysts in organic synthesis. However, in consideration of the fact that the literature on this field is very extensive, we have decided to focus our attention on the scientific productions of the last five years.
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7
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Saha M, Das AR. Nanocrystalline ZnO: A Competent and Reusable Catalyst for the Preparation of Pharmacology Relevant Heterocycles in the Aqueous Medium. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346107666200218122718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
:Nanoparticle catalyzed synthesis is a green and convenient method to achieve most of the chemical transformations in water or other green solvents. Nanoparticle ensures an easy isolation process of catalyst as well as products from the reaction mixture avoiding the hectic work up procedure. Zinc oxide is a biocompatible, environmentally benign and economically viable nanocatalyst with effectivity comparable to the other metal nanocatalyst employed in several reaction strategies. This review mainly focuses on the recent applications of zinc oxide in the synthesis of biologically important heterocyclic molecules under sustainable reaction conditions.:Application of zinc oxide in organic synthesis: Considering the achievable advantages of this nanocatalyst, presently several research groups are paying attention in anchoring zincoxide or its modified structure in several types of organic conversions e.g. multicomponent reactions, ligand-free coupling reactions, cycloaddition reaction, etc. The advantages and limitations of this nanocatalyst are also demonstrated. The present study aims to highlight the recent multifaceted applications of ZnO towards the synthesis of diverse heterocyclic motifs. Being a promising biocompatible nanoparticle, this catalyst has an important contribution in the fields of synthetic chemistry and medicinal chemistry.
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Affiliation(s)
- Moumita Saha
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
| | - Asish R. Das
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
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8
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Shabalala NG, Hadebe NP, Kerru N, Maddila S, van Zyl WE, Jonnalagadda SB. An Efficient and Sustainable Protocol for the Synthesis of Poly-Functionalized-Pyran Derivatives under Ultrasound Irradiation. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1743331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | - Nagaraju Kerru
- School of Chemistry & Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Werner E. van Zyl
- School of Chemistry & Physics, University of KwaZulu-Natal, Durban, South Africa
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9
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Ganja H, Robert AR, Lavanya P, Chinnam S, Maddila S, Jonnalagadda SB. Y2O3/HAp, a sustainable catalyst for novel synthesis of furo[3,4-b]chromenes derivatives via green strategy. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107807] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Maddila SN, Maddila S, Kerru N, Bhaskaruni SVHS, Jonnalagadda SB. Facile One‐pot Synthesis of Arylsulfonyl‐4H‐pyrans Catalyzed by Ru Loaded Fluorapatite. ChemistrySelect 2020. [DOI: 10.1002/slct.201901867] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Surya N Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Suresh Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Nagaraju Kerru
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Sandeep V. H. S. Bhaskaruni
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Sreekantha B Jonnalagadda
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
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11
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MnO2 on hydroxyapatite: A green heterogeneous catalyst and synthesis of pyran-carboxamide derivatives. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107706] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Faroughi Niya H, Hazeri N, Maghsoodlou MT. Synthesis and characterization of Fe
3
O
4
@THAM‐SO
3
H as a highly reusable nanocatalyst and its application for the synthesis of dihydropyrano[2,3‐
c
]pyrazole derivatives. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5472] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Homayoun Faroughi Niya
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan P.O. Box 98135‐674 Zahedan Iran
| | - Nourallah Hazeri
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan P.O. Box 98135‐674 Zahedan Iran
| | - Malek Taher Maghsoodlou
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan P.O. Box 98135‐674 Zahedan Iran
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13
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Khumalo MR, Maddila SN, Maddila S, Jonnalagadda SB. A facile and one-pot synthesis of new tetrahydrobenzo[b]pyrans in water under microwave irradiation. BMC Chem 2019; 13:132. [PMID: 31788672 PMCID: PMC6878704 DOI: 10.1186/s13065-019-0651-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 11/13/2019] [Indexed: 11/29/2022] Open
Abstract
Eleven new tetrahydrobenzo[b]pyran derivatives were synthesized via a three component reaction of different aromatic aldehydes, methyl cyanoacetate and 1,3-cyclohexadione, with water as solvent under catalyst-free microwave irradiation. The structures of all the new molecules were well analysed and their structures established by using various spectral techniques (1H NMR, 13C NMR, 15N NMR and HRMS). Various advantages of reported protocol are the ease of preparation, short reaction times (10 min), aqueous solvent and excellent yields (89–98%). Additionally, this method provides a clean access to the desired products by simple workup.![]()
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Affiliation(s)
- Mandlenkosi Robert Khumalo
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, 4000 South Africa
| | - Surya Narayana Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, 4000 South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, 4000 South Africa
| | - Sreekantha B Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, 4000 South Africa
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14
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Khumalo MR, Maddila SN, Maddila S, Jonnalagadda SB. Microwave‐Assisted One‐Step Four‐Component Reaction for Synthesis of 1,4‐Dihydropyridines Catalyzed by Triethylamine. ChemistrySelect 2019. [DOI: 10.1002/slct.201903222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mandlenkosi Robert Khumalo
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
| | - Surya Narayana Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
| | - Suresh Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
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15
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Maddila SN, Maddila S, Khumalo M, Bhaskaruni SV, Jonnalagadda SB. An eco-friendly approach for synthesis of novel substituted 4H-chromenes in aqueous ethanol under ultra-sonication with 94% atom economy. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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16
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Mohammadi H, Shaterian HR. (3‐Oxo‐[1,2,4]triazolidin‐1‐yl)bis (butane‐1‐sulfonic acid) functionalized magnetic γ‐Fe
2
O
3
nanoparticles: A novel and heterogeneous nanocatalyst for one‐pot and efficient four‐component synthesis of novel spiro[indeno[1,2‐
b
]quinoxaline derivatives. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4901] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hadi Mohammadi
- Department of Chemistry, Faculty of SciencesUniversity of Sistan and Baluchestan PO Box 98135‐674 Zahedan Iran
| | - Hamid Reza Shaterian
- Department of Chemistry, Faculty of SciencesUniversity of Sistan and Baluchestan PO Box 98135‐674 Zahedan Iran
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17
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Kerru N, Maddila SN, Maddila S, Sobhanapuram S, Jonnalagadda SB. Synthesis and antimicrobial activity of novel thienopyrimidine linked rhodanine derivatives. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0220] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This work presents the preparation of a new series of N-(substituted phenyl)-2-(4-oxo-5-(4-(thieno[2,3-d]-pyrimidin-4-yloxy)benzylidene)-2-thioxothiazolidin-3-yl)acetamide derivatives (8a–8l). A condensation reaction of thienopyrimidin-2-thioxothiazolidin-4-one derivative (5) with various 2-chloro-N-phenylacetamides (7a–7l) was employed to afford the new thienopyrimidine tagged rhodanine derivatives under acetone solvent in the presence of potassium carbonate (K2CO3). All of the novel target molecules were characterized by IR, 1H NMR, 13C NMR, and LC–MS spectral analyses and were screened for their in vitro antimicrobial activity by using the broth dilution method. Compounds 8c, 8g, and 8h found to have antibacterial potency against E. coli, B. subtilis, B. cereus, and K. pneumonia with minimum inhibitory concentrations (MICs) of 3.25–6.25 μg/mL compared with the standard Gentamicin. Compounds 8c and 8f demonstrated better antifungal potency (MIC = 3.25–6.25 μg/mL) against A. flavus, A. niger, P. marneffei, and C. albicans when compared with Fluconazole.
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Affiliation(s)
- Nagaraju Kerru
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chilten Hills, Private Bag 54001, Durban-4000, South Africa
| | - Surya Narayana Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chilten Hills, Private Bag 54001, Durban-4000, South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chilten Hills, Private Bag 54001, Durban-4000, South Africa
- GITAM Institute of Sciences, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | | | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chilten Hills, Private Bag 54001, Durban-4000, South Africa
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18
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Bhaskaruni SVHS, Maddila S, van Zyl WE, Jonnalagadda SB. An efficient and green approach for the synthesis of 2,4-dihydropyrano[2,3- c]pyrazole-3-carboxylates using Bi 2O 3/ZrO 2 as a reusable catalyst. RSC Adv 2018; 8:16336-16343. [PMID: 35542231 PMCID: PMC9080279 DOI: 10.1039/c8ra01994k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/23/2018] [Indexed: 01/02/2023] Open
Abstract
A novel material of bismuth loaded on zirconia (Bi2O3/ZrO2) is synthesized by simple wet-impregnation method and characterized by several techniques (P-XRD, TEM, SEM, BET, etc.). Bi2O3/ZrO2 proved to be a good catalyst for the four-component, one-pot reaction to produce a new series of 2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylate derivatives with excellent yields (91 to 98%) under mild conditions at RT with short reaction times (≈20 min). The structures of the target molecules were confirmed by 1H NMR, 13C NMR, 15N NMR, HRMS and FT-IR. The catalyst is easily separable and can be reused for six cycles without ostensible loss of activity. This method is inexpensive, atom-efficient and no chromatographic separations are needed.
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Affiliation(s)
- Sandeep V H S Bhaskaruni
- School of Chemistry & Physics, University of KwaZulu-Natal Westville Campus, Chiltern Hills Durban-4000 South Africa +27 31 2603091 +27 31 2607325
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal Westville Campus, Chiltern Hills Durban-4000 South Africa +27 31 2603091 +27 31 2607325
| | - Werner E van Zyl
- School of Chemistry & Physics, University of KwaZulu-Natal Westville Campus, Chiltern Hills Durban-4000 South Africa +27 31 2603091 +27 31 2607325
| | - Sreekantha B Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal Westville Campus, Chiltern Hills Durban-4000 South Africa +27 31 2603091 +27 31 2607325
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19
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Ogundare SA, Moodley V, van Zyl WE. Nanocrystalline cellulose isolated from discarded cigarette filters. Carbohydr Polym 2017; 175:273-281. [PMID: 28917867 DOI: 10.1016/j.carbpol.2017.08.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 10/19/2022]
Abstract
We report the isolation of nanocrystalline cellulose (NCC) produced from discarded cigarette filters (DCF). The DCF were processed into cellulose via ethanolic extraction, hypochlorite bleaching, alkaline deacetylation, and then converted into NCC by sulfuric acid hydrolysis. The morphological structures of the isolated NCC established with TEM showed that the nanocrystals were needle-like with a mean length of 143nm. FEGSEM showed the morphological transition of the micro-sized DCF to self-assembled NCC while EDX revealed the presence of Ti (as TiO2) in DCF, which was retained in the NCC. A NCC sample was freeze-dried and showed a specific surface area of 7.78m2/g. The crystallinity of the NCC film and freeze-dried samples were 96.77% and 94.47%, respectively. Crystallite sizes of the freeze-dried (8.4nm) and film (7.6nm) samples correlated with the mean width (8.3nm) of the NCC observed under TEM.
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Affiliation(s)
- Segun A Ogundare
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa; Department of Chemical Sciences, Olabisi Onabanjo University, P. M. B. 2002, Ago-Iwoye, Nigeria.
| | - Vashen Moodley
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa.
| | - Werner E van Zyl
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa.
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