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Jarvin M, Rosaline DR, Gopalakrishnan T, Kamalam MBR, Foletto EL, Dotto GL, Inbanathan SSR. Remarkable photocatalytic performances towards pollutant degradation under sunlight and enhanced electrochemical properties of TiO 2/polymer nanohybrids. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:62832-62846. [PMID: 36947375 DOI: 10.1007/s11356-023-26486-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 03/11/2023] [Indexed: 05/10/2023]
Abstract
In this work, TiO2-based nanocomposites containing polyaniline (PANI), poly(1-naphthylamine) (PNA), and polyindole (PIN) were synthesized by effective and simple routes and posteriorly employed as photocatalysts and supercapacitors. Characterization techniques such as XRD, FTIR, FESEM, UV, and PL were employed to investigate the structural, morphological, and optical properties of materials. XRD analysis confirmed the successful formation of TiO2 and TiO2/polymer nanocomposites. PANI, PNA, and PIN polymers were well distributed on the surface of TiO2 nanoparticles and were investigated/explored from the FESEM analysis. The visible light absorption and the recombination rate of photogenerated charge carriers were confirmed by the UV-Vis and PL analysis. The photocatalytic properties of the nanocomposites were investigated towards malachite green (MG) dye degradation under sunlight. The dye degradation efficiency followed the order TiO2/PNA > TiO2/PANI > TiO2 > TiO2/PIN. The higher efficiency of TiO2/PNA can be associated with its smaller bandgap energy compared to the other materials. Electrochemical properties of materials were also examined by cyclic voltammetry and galvanostatic charge-discharge measurements using a three-electrode experiment setup in an aqueous electrolyte. TiO2/PNA nanocomposite showed higher supercapacitor behavior compared to the other materials due to higher electrical conductivity of PNA and redox potential of TiO2 (pseudocapacitance).
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Affiliation(s)
- Mariadhas Jarvin
- Post Graduate and Research Department of Physics, The American College, Madurai, 625002, Tamil Nadu, India
| | - Daniel Rani Rosaline
- Post Graduate and Research Department of Chemistry, Lady Doak College, Madurai, 625002, Tamil Nadu, India
| | | | | | - Edson Luiz Foletto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
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Ikram M, Jamal F, Haider A, Dilpazir S, Shujah T, Naz M, Imran M, Ul-Hamid A, Shahzadi I, Ullah H, Nabgan W, Ali S. Efficient Photocatalytic Dye Degradation and Bacterial Inactivation by Graphitic Carbon Nitride and Starch-Doped Magnesium Hydroxide Nanostructures. ACS OMEGA 2022; 7:39998-40008. [PMID: 36385836 PMCID: PMC9648148 DOI: 10.1021/acsomega.2c04650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The removal of hazardous pollutants from water is becoming an increasingly interesting topic of research considering their impact on the environment and the ecosystem. This work was carried out to synthesize graphitic carbon nitride (g-C3N4) and starch-doped magnesium hydroxide (g-C3N4/St-Mg(OH)2) nanostructures via a facile co-precipitation process. The focus of this study is to treat polluted water and bactericidal behavior with a ternary system (doping-dependent Mg(OH)2). Different concentrations (2 and 4 wt %) of g-C3N4 were doped in a fixed amount of starch and Mg(OH)2 to degrade methylene blue dye from an aqueous solution with bactericidal potential against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) pathogens. The textural structures, morphological evolutions, and optical characteristics of the as-prepared samples were analyzed using advanced characterization techniques. X-ray diffraction confirmed the hexagonal phase of Mg(OH)2 with improved crystallinity upon doping. Fourier transform infrared spectroscopy revealed Mg(OH)2 stretching vibrations and other functional groups. UV-visible spectroscopy exhibited a red shift (bathochromic effect) in absorption spectra representing the decrease in energy band gap (E g). Photoluminescence patterns were recorded to study recombination of charge carriers (e- and h+). A significant enhancement in photodegradation efficiency (97.62%) and efficient bactericidal actions against E. coli (14.10 mm inhibition zone) and S. aureus (7.45 mm inhibition zone) were observed for higher doped specimen 4% g-C3N4/St-Mg(OH)2.
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Affiliation(s)
- Muhammad Ikram
- Solar
Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore54000, Pakistan
| | - Farzana Jamal
- Solar
Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore54000, Pakistan
| | - Ali Haider
- Department
of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan66000, Pakistan
| | - Sobia Dilpazir
- Department
of Chemistry, Comsats University, Islamabad45550, Pakistan
| | - Tahira Shujah
- Department
of Physics, University of Central Punjab, Lahore54000, Pakistan
| | - Misbah Naz
- Department
of Chemistry, Division of Science & Technology, University of Education, Lahore54000, Pakistan
| | - Muhammad Imran
- Department
of Chemistry, Government College University
Faisalabad, Pakpattan
Road, Sahiwal, Punjab57000, Pakistan
| | - Anwar Ul-Hamid
- Core
Research Facilities, King Fahd University
of Petroleum & Minerals, Dhahran31261, Saudi Arabia
| | - Iram Shahzadi
- Punjab
University College of Pharmacy, University
of the Punjab, Allama Iqbal Campus, Lahore54000, Pakistan
| | - Hassam Ullah
- Department
of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore54000, Pakistan
| | - Walid Nabgan
- Departament
d’Enginyeria Química, Universitat
Rovira i Virgili, Av
Països Catalans 26, Tarragona43007, Spain
| | - Salamat Ali
- Department
of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore54000, Pakistan
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Superior photocatalytic and electrochemical activity of novel WS2/PANI nanocomposite for the degradation and detection of pollutants: Antibiotic, heavy metal ions, and dyes. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Photocatalytic degradation of azo dyes in textile wastewater by Polyaniline composite catalyst-a review. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2022.e01305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Das HT, Dutta S, Beura R, Das N. Role of polyaniline in accomplishing a sustainable environment: recent trends in polyaniline for eradicating hazardous pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:49598-49631. [PMID: 35596869 DOI: 10.1007/s11356-022-20916-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Attaining a sustainable environment has become a prime area of research interest, as it is an utmost necessity for a healthy life. Hence, ample studies have been carried out in adopting different processes and utilizing various materials to attain the goal. Herein, we present an exclusive discussion on one such material, i.e., polyaniline (PANI) and its derivatives. Being an intrinsic conducting type, it has grabbed more attention due to its durability in different doped/un-doped states, promptness in structural alteration, and solution processability. This review presents an exhaustive discussion on published reports showing utilization of PANI and its derivative in various forms like pure and composites, for cleaning the environment through adsorption, photodegradation, etc., and the various methods adopted in order to achieve an optimum operating condition to obtain the maximum outcome. In addition to these merits and demerits, various technical challenges faced with materials have been also presented. Therefore, it is expected that this piece of work, presenting the exhaustive discussion on PANI and; its derivatives would help to develop a better understanding of this excellent conducting polymer PANI and provide a state of art on the role of this material for attaining sustainable surroundings for the living beings.
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Affiliation(s)
- Himadri Tanaya Das
- Centre of Excellence for Advance Materials and Applications, Utkal University, Bhubaneswar, Odisha, India.
| | - Swapnamoy Dutta
- CEITEC-Central European Institute of Technology, Brno University of Technology, 61200, Brno, Czech Republic
| | - Rosalin Beura
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Dwaraka, New Delhi, India
| | - Nigamananda Das
- Centre of Excellence for Advance Materials and Applications, Utkal University, Bhubaneswar, Odisha, India.
- Department of Chemistry, Utkal University, Bhubaneswar, Odisha, India.
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Ma H, Zheng Y, Xian J, Feng Z, Li Z, Cui F. A light-enhanced α-FeOOH nanowires/polyaniline anode for improved electricity generation performance in microbial fuel cells. CHEMOSPHERE 2022; 296:133994. [PMID: 35176307 DOI: 10.1016/j.chemosphere.2022.133994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/14/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Low power density and poor anode performance seriously limit the potential of practical application of microbial fuel cell (MFC). Utilizing solar energy by developing photoanode is one of the effective pathways to improve the performance of MFC. Here solar energy harvesting was integrated into MFC to achieved the comprehensive utilization of multiple energy sources. A hybrid MFC photoanode (α-FeOOH-NWs/PANI anode) was constructed by loading polyaniline (PANI) and α-FeOOH nanowires (α-FeOOH-NWs) on carbon paper through electro-polymerization synthesis method. Compared with clean carbon paper, nanowires and PANI increased the surface roughness of the electrode, which facilitated the biofilm formation. The electrochemical and photoelectric analysis demonstrated that PANI introduced new electroactive groups and reduced the charge transfer resistance, exhibiting excellent electrochemical and photoelectric activites. The MFC with the α-FeOOH-NWs/PANI photoanode had higher voltage output and power density under light illumination, with the power density of 1.95 W/m2 under light, which was 1.4 times higher than that without light. The hybrid α-FeOOH-NWs/PANI photoanode enhanced the separation efficiency of photogenerated electron-hole pairs, thereby improving the photoelectric response capability and generating a high photocurrent. Our research provided a new concept for the combination of solar energy harvesting and MFCs, yielding an overall enhancement of electricity eneration performance in MFC.
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Affiliation(s)
- Hua Ma
- College of Environment and Ecology, Chongqing University, Chongqing, China; Key Laboratory of the Three Gorge Reservoir Region's Eco-environment, Ministry of Education, Chongqing, China.
| | - Yun Zheng
- College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Jiali Xian
- College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Zijuan Feng
- College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Zhe Li
- College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Fuyi Cui
- College of Environment and Ecology, Chongqing University, Chongqing, China; Key Laboratory of the Three Gorge Reservoir Region's Eco-environment, Ministry of Education, Chongqing, China
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Hasan S, Rauf A, Saleem S. Nanoformulation of C-18 long fatty acid-capped silver nanoparticles with exploration of photocatalytic and antibacterial activities. NEW J CHEM 2020. [DOI: 10.1039/d0nj02796k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C-18 fatty acid-coated silver nanoparticles are synthesized using a facile and worthwhile chemical method.
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Affiliation(s)
- Shazia Hasan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Abdul Rauf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Samia Saleem
- Department of Agricultural Microbiology
- Aligarh Muslim University
- Aligarh 202002
- India
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