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Rajamehala M, Kumara Pandian AM, Rajasimman M, Gopalakrishnan B. Porous nanocomposites for sorptive elimination of ibuprofen from synthetic wastewater and its molecular docking studies. Environ Res 2023; 218:114984. [PMID: 36462695 DOI: 10.1016/j.envres.2022.114984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/15/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Pharmaceuticals are a new developing pollutant that is threatening aquatic ecosystems and impacting numerous species in the ecosystem. The aim of this study is the green synthesis of TiO2-Fe2O3-Chitosan nanocomposites in conjunction with Moringa olifera leaves extract and its applicability for ibuprofen removal. Various characterization studies were performed for the synthesized nanocomposites. Box-Behnken design (BBD) is employed to optimize pH, agitation speed, and composite dosage. Equilibrium results show that adsorption process matches with Langmuir isotherm, demonstrating adsorption on the nanocomposite's homogenous surface and follows pseudo-first-order kinetics. Using the BBD, pH, adsorbent dose, and agitation speed were examined as adsorption parameters. Ibuprofen elimination was demonstrated to be most successful at a pH of 7.3, using 0.05 g of nanocomposites at a rotational speed of 200 rpm. Thermodynamic parameters for ibuprofen sorption were carried out and the ΔH and ΔS was found to be 76.23 & 0.233. Molecular Docking was performed to find the interaction between the pollutant and the nanocomposite. UV-vis spectra confirm the 243 nm absorption band corresponding to the nanocomposite's surface plasmon resonances. Fourier transform infrared spectroscopy spectra relate this band to a group of nanocomposites. The findings of this work emphasize the importance of TiO2-Fe2O3-Chitosan nanocomposites for removing ibuprofen from wastewater.
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Affiliation(s)
- M Rajamehala
- Department of Biotechnology, Vivekanandha College of Engineering for Women, Tiruchengode, Namakkal, 637205, Tamilnadu, India.
| | - A Muthu Kumara Pandian
- Department of Biotechnology, Vivekanandha College of Engineering for Women, Tiruchengode, Namakkal, 637205, Tamilnadu, India
| | - M Rajasimman
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, 608002, India
| | - B Gopalakrishnan
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, 608002, India
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Pandian AMK, Rajamehala M, Singh MVP, Sarojini G, Rajamohan N. Potential risks and approaches to reduce the toxicity of disinfection by-product - A review. Sci Total Environ 2022; 822:153323. [PMID: 35066044 DOI: 10.1016/j.scitotenv.2022.153323] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/08/2022] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Water contamination through anthropogenic and industrial activities has led to the emergence and necessity of disinfection methods. Chlorine and bromine gases, often used to disinfect water, resulted in the by-product formation by reacting with organic matter. The Disinfectant by-products (DBP) led to the formation of Trihaloaceticacid (TAA), Trihalomethane (THM), and other minor components. The release of chemicals has also led to the outbreak of diseases like infertility, asthma, stillbirth, and types of cancer. There are new approaches that are found to be useful to compensate for the generation of toxic by-products and involve membrane technologies, namely reverse osmosis, ultrafiltration, and nanofiltration. This review mainly focuses on the toxicology effects of DBPs and various approaches to mitigate the same. The health hazards caused by different DBPs and the various treatment techniques available for the removal are discussed. In addition, a critical comparison of the different removal techniques was discussed.
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Affiliation(s)
- A Muthu Kumara Pandian
- Department of Biotechnology, Vivekanandha College of Engineering for Women (Autonomous), Tiruchengode, Namakkal 637205, India.
| | - M Rajamehala
- Department of Biotechnology, Vivekanandha College of Engineering for Women (Autonomous), Tiruchengode, Namakkal 637205, India
| | - M Vijay Pradhap Singh
- Department of Biotechnology, Vivekanandha College of Engineering for Women (Autonomous), Tiruchengode, Namakkal 637205, India
| | - G Sarojini
- Department of Petrochemical Engineering, SVS College of Engineering, Coimbatore, India
| | - N Rajamohan
- Chemical Engineering Section, Sohar University, Sohar, Oman
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Muthu Kumara Pandian A, Rajasimman M, Rajamohan N, Varjani S, Karthikeyan C. Anaerobic mixed consortium (AMC) mediated enhanced biosynthesis of silver nano particles (AgNPs) and its application for the removal of phenol. J Hazard Mater 2021; 416:125717. [PMID: 33819646 DOI: 10.1016/j.jhazmat.2021.125717] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 03/06/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
In this research, silver nano particle (AgNP), was synthesized through a novel anaerobic mixed consortium mediation method and applied for the removal of phenol. The best operating conditions for the fabrication of silver nanoparticles were identified through response surface methodology (RSM) and the maximum yield was found to be 2.65 g/100 ml of anaerobic mixed consortium at optimal conditions of pH-8.6, temperature-90 °C, silver nitrate concentration-3 mg/ml and inoculum volume-3 ml. The synthesized nano particle exhibited a maximum phenol removal of 87.65% was achieved at pH:5.8. The synthesized silver nanoparticles were characterized by superior surface area (19.26 m2/g) and the stability was confirmed by thermo gravimetric analysis (upto 500 °C). The surface morphology was well explained using High Resolution Transmission Emission Microscopy (HR-TEM) and Scanning Electron Microscope with EDS (SEM-EDS) techniques. X-ray Diffraction (XRD) analysis confirmed the changes in crystalline structure due to the adsorption of phenol. Kinetic experiments fitted well with the intra-particle diffusion model. The nature of adsorption of phenol was confirmed as monolayer by the goodness of fit with Langmuir isotherm (R2 > 0.9969).
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Affiliation(s)
- A Muthu Kumara Pandian
- Department of Biotechnology, Vivekanandha College of Engineering for Women, Namakkal, Tiruchengode 637205, India.
| | - M Rajasimman
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Nagar 608002, Tamilnadu, India
| | - N Rajamohan
- Department of Chemical Engineering, Sohar University, Sohar 311, Oman
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhi Nagar 382010, Gujarat, India
| | - C Karthikeyan
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Nagar 608002, Tamilnadu, India
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Muthu Kumara Pandian A, Gopalakrishnan B, Rajasimman M, Rajamohan N, Karthikeyan C. Green synthesis of bio-functionalized nano-particles for the application of copper removal - characterization and modeling studies. Environ Res 2021; 197:111140. [PMID: 33864794 DOI: 10.1016/j.envres.2021.111140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/01/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Green technology for the synthesis of nanoparticles has gained momentum due to its cost-effectiveness and eco-friendly nature. In this research study, silver nanoparticles (AgNps) were synthesized using an eco-friendly biological method involving the use of marine algae, Halimeda gracilis. The surface properties of the synthesized silver nanoparticles were studied using UV-visible spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy methods. During the synthesis of nano particles, the parameters namely temperature (30 °C to 90 °C), pH (6-10), silver nitrate (AgNO3) concentration (1-3 mg/ml) and quantity of algal extract (1-3 ml) were optimized to improve the production of AgNPs. The application of the synthesized silver nanoparticles for the adsorptive removal of copper from aqueous and industrial wastewater was investigated. Intra-particle diffusion mechanism was identified to be controlling step in metal removal. Regeneration of sorbent was carried out using 2.0 M HCl and the reusability was verified for 6 cycles. A removal efficiency of copper (64.8%) from electroplating wastewater demonstrated the industrial application potential of the synthesized silver nanoparticles.
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Affiliation(s)
- A Muthu Kumara Pandian
- Department of Biotechnology, Vivekanandha College of Engineering for Women, Tiruchengode, Namakkal, 637205, India.
| | - B Gopalakrishnan
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Naga, 608002, Tamilnadu, India
| | - M Rajasimman
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Naga, 608002, Tamilnadu, India
| | - N Rajamohan
- Chemical Engineering Section, Faculty of Engineering, Sohar University, Oman
| | - C Karthikeyan
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Naga, 608002, Tamilnadu, India
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Pandian AMK, Karthikeyan C, Rajasimman M. Isotherm and kinetic studies on nano-sorption of Malachite Green onto Allium sativum mediated synthesis of silver nano particles. Biocatalysis and Agricultural Biotechnology 2016. [DOI: 10.1016/j.bcab.2016.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Pandian AMK, Karthikeyan C, Rajasimman M, Dinesh MG. Synthesis of silver nanoparticle and its application. Ecotoxicol Environ Saf 2015; 121:211-217. [PMID: 25866204 DOI: 10.1016/j.ecoenv.2015.03.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 03/25/2015] [Accepted: 03/31/2015] [Indexed: 06/04/2023]
Abstract
In this work, silver nanoparticles have been synthesized by wet chemical technique, green synthesis and microbial methods. Silver nitrate (10(-3)M) was used with aqueous extract to produce silver nanoparticles. From the results it was observed that the yield of nanoparticles was high in green synthesis. The size of the silver nanoparticles was determined from Scanning Electron Microscope analysis (SEM). Fourier Transform Infrared spectroscopy (FTIR) was carried out to determine the presence of biomolecules in them. Its cytotoxic effect was studied in cancerous cell line and normal cell line. MTT assay was done to test its optimal concentration and efficacy which gives valuable information for the use of silver nanoparticles for future cancer therapy.
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Affiliation(s)
- A Muthu Kumara Pandian
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Nagar, Tamil Nadu, India.
| | - C Karthikeyan
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Nagar, Tamil Nadu, India
| | - M Rajasimman
- Environmental Engineering Laboratory, Department of Chemical Engineering, Annamalai University, Annamalai Nagar, Tamil Nadu, India
| | - M G Dinesh
- Department of Ayurvedic and Siddha medicine, Sriramachandra Medical College, Chennai, Tamil Nadu, India
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