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Sarkodie B, Luo L, Mao Z, Farooq A, Feng Q, Xu C, Tawiah B, Hu Y. Highly reusable Bi 2O 3/electron-Cu-shuttle in-situ immobilized polyacrylonitrile fibrous mat for efficient photocatalytic degradation of methylene blue and rhodamine B dyes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120346. [PMID: 38387350 DOI: 10.1016/j.jenvman.2024.120346] [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: 10/09/2023] [Revised: 01/22/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
Organic semiconductor-based photocatalysts have been alluring due to their edge over inorganic photocatalysts. In this study, a reusable copper-bismuth oxide/polyacrylonitrile (Cu-Bi2O3/PAN) fibrous mat was prepared by fast-process flame spray pyrolysis and electrospinning for photocatalytic degradation of methylene blue (MB) and rhodamine B (RhB) dyes. The results confirmed a well-defined morphology of Cu-Bi2O3/PAN fibers and good coordination of flame-made Cu-Bi2O3 particles with the functional groups of PAN. The Cu-Bi2O3/PAN fibrous mat exhibits remarkable photocatalytic performance of 96.2% MB and 98.6% RhB degradation, with a reaction rate as high as about 4.5- and 10.2-times than that of flame-made Cu-Bi2O3 particles and PAN under neutral condition, even after 10 cycles. The Cu-Bi2O3/PAN exhibits complete degradation of MB and RhB in 90 and 150 min under alkaline and slightly acidic conditions, respectively. The synergistic effect of Cu-Bi2O3 and coordination bond between particles and functional groups of PAN promoted carrier migration, suppressed recombination of carriers and provided abundant radicals on the surface of the mat. Superoxide and hydroxyl radicals were the major active species involved in the degradation of RhB and MB, respectively. This work provides an insight into designing the Cu-metal-shuttle based photocatalysts to optimize fibrous mat application in water remediation.
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Affiliation(s)
- Bismark Sarkodie
- College of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui, China; School of Textile and Clothing, Qingdao University, Qingdao, China.
| | - Lingli Luo
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Ze Mao
- College of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui, China
| | - Amjad Farooq
- College of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui, China
| | - Quan Feng
- College of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui, China.
| | - Changhai Xu
- School of Textile and Clothing, Qingdao University, Qingdao, China
| | - Benjamin Tawiah
- Department of Industrial Art (Textiles), Kwame Nkrumah University of Science and Technology, Private Mail Bag, Kumasi, Ghana
| | - Yanjie Hu
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China.
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Alsaab AH, Zeghib S. Study of Prepared Lead-Free Polymer Nanocomposites for X- and Gamma-ray Shielding in Healthcare Applications. Polymers (Basel) 2023; 15:polym15092142. [PMID: 37177287 PMCID: PMC10181160 DOI: 10.3390/polym15092142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Polymer composites were synthesized via melt mixing for radiation shielding in the healthcare sector. A polymethyl-methacrylate (PMMA) matrix was filled with Bi2O3 nanoparticles at 10%, 20%, 30%, and 40% weight percentages. The characterization of nanocomposites included their morphological, structural, and thermal properties, achieved using SEM, XRD, and TGA, respectively. The shielding properties for all synthesized samples including pristine PMMA were measured with gamma spectrometry using a NaI (Tl) scintillator detector spanning a wide range of energies and using different radioisotopes, namely Am-241 (59.6 keV), Co-57 (122.2 keV), Ra-226 (242.0), Ba-133 (80.99 and 356.02 keV), Cs-137 (661.6 keV), and Co-60 (1173.2 and 1332.5 keV). A substantial increase in the mass attenuation coefficients was obtained at low and medium energies as the filler weight percentage increased, with minor variations at higher gamma energies (1173 and 1332 keV). The mass attenuation coefficient decreased with increasing energy except under 122 keV gamma rays due to the K-absorption edge of bismuth (90.5 keV). At 40% loading of Bi2O3, the mass attenuation coefficient for the cesium 137Cs gamma line at 662 keV reached the corresponding value for the toxic heavy element lead. The synthesized PMMA-Bi2O3 nanocomposites proved to be highly effective, lead-free, safe, and lightweight shielding materials for X- and gamma rays within a wide energy range (<59 keV to 1332 keV), making them of interest for healthcare applications.
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Affiliation(s)
- Abdulrhman Hasan Alsaab
- Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sadek Zeghib
- Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Cao X, Wang H, Liu T, Shi Y, Xue X. Electrodeposition of Bi from Choline Chloride-Malonic Acid Deep Eutectic Solvent. MATERIALS (BASEL, SWITZERLAND) 2023; 16:415. [PMID: 36614753 PMCID: PMC9822005 DOI: 10.3390/ma16010415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/24/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Deep eutectic solvent (DES) has been widely used in the field of metal electrodeposition as an economical and environmentally friendly green solvent. Metallic bismuth films were prepared by electrodeposition from choline chloride-malonic acid (ChCl-MA) deep eutectic solvent (DES) containing BiCl3. Fourier transform infrared (FTIR) spectroscopy and Raman spectroscopy were used to study the structure of ChCl-MA-BiCl3, and the results showed that Bi(III) was in the form of [BiCl6]3- ions. The viscosity of ChCl-MA-BiCl3 ranges from 200 to 1200 mPa·s at temperatures from 363 K to 323 K. The conductivity of 0.01 M Bi(III) in ChCl-MA is 3.24 ms·cm-1 at 363 K. The electrochemical behavior and electrodeposition of Bi(III) in DES were investigated by cyclic voltammetry (CV) and chronoamperometry. The results showed that the electrodeposition reaction was a quasi-reversible reaction controlled by the diffusion and the nucleation of bismuth was a three-dimensional instantaneous nucleation. The diffusion coefficient of Bi(III) in ChCl-MA was 1.84 × 10-9 cm2·s-1. The electrodeposition product was observed by scanning electron microscopy (SEM), and the results showed that the deposition potential has a significant influence on the morphology of the bismuth film. X-ray photoelectron spectroscopy (XPS) shows that bismuth and bismuth oxides are present in the deposited film obtained by electrodeposition.
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Affiliation(s)
- Xiaozhou Cao
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Hao Wang
- Northern Engineering and Technology Corporation, MCC, Dalian 116600, China
| | - Tianrui Liu
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Yuanyuan Shi
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Xiangxin Xue
- School of Metallurgy, Northeastern University, Shenyang 110819, China
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Melchionna M, Moro M, Adorinni S, Nasi L, Colussi S, Poggini L, Marchesan S, Valenti G, Paolucci F, Prato M, Fornasiero P. Driving up the Electrocatalytic Performance for Carbon Dioxide Conversion through Interface Tuning in Graphene Oxide-Bismuth Oxide Nanocomposites. ACS APPLIED ENERGY MATERIALS 2022; 5:13356-13366. [PMID: 36465260 PMCID: PMC9710520 DOI: 10.1021/acsaem.2c02013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/11/2022] [Indexed: 06/17/2023]
Abstract
The integration of graphene oxide (GO) into nanostructured Bi2O3 electrocatalysts for CO2 reduction (CO2RR) brings up remarkable improvements in terms of performance toward formic acid (HCOOH) production. The GO scaffold is able to facilitate electron transfers toward the active Bi2O3 phase, amending for the high metal oxide (MO) intrinsic electric resistance, resulting in activation of the CO2 with smaller overpotential. Herein, the structure of the GO-MO nanocomposite is tailored according to two synthetic protocols, giving rise to two different nanostructures, one featuring reduced GO (rGO) supporting Bi@Bi2O3 core-shell nanoparticles (NP) and the other GO supporting fully oxidized Bi2O3 NP. The two structures differentiate in terms of electrocatalytic behavior, suggesting the importance of constructing a suitable interface between the nanocarbon and the MO, as well as between MO and metal.
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Affiliation(s)
- Michele Melchionna
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste and Consortium INSTM, Via L. Giorgieri 1, 34127Trieste, Italy
| | - Miriam Moro
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna and Consortium INSTM, via Selmi 2, 40126Bologna, Italy
| | - Simone Adorinni
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste and Consortium INSTM, Via L. Giorgieri 1, 34127Trieste, Italy
| | - Lucia Nasi
- CNR-IMEM
Institute, Parco area delle Scienze 37/A, 43124Parma, Italy
| | - Sara Colussi
- Department
Politecnico, University of Udine, Unità
di Ricerca INSTM Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Lorenzo Poggini
- Institute
of Chemistry of Organometallic Compounds, National Research Council of Italy (ICCOM-CNR), Via Madonna del Piano 10, 50019Sesto Fiorentino, Florence, Italy
| | - Silvia Marchesan
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste and Consortium INSTM, Via L. Giorgieri 1, 34127Trieste, Italy
| | - Giovanni Valenti
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna and Consortium INSTM, via Selmi 2, 40126Bologna, Italy
| | - Francesco Paolucci
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna and Consortium INSTM, via Selmi 2, 40126Bologna, Italy
| | - Maurizio Prato
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste and Consortium INSTM, Via L. Giorgieri 1, 34127Trieste, Italy
- Carbon Nanobiotechnology
Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009Donostia-San Sebastian, Spain
- Ikerbasque,
Basque Foundation for Science, 48013Bilbao, Spain
| | - Paolo Fornasiero
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste and Consortium INSTM, Via L. Giorgieri 1, 34127Trieste, Italy
- ICCOM-CNR,
University of Trieste, Via L. Giorgieri 1, 34127Trieste, Italy
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Kargar F, Bemani A, Sayadi MH, Ahmadpour N. Synthesis of modified beta bismuth oxide by titanium oxide and highly efficient solar photocatalytic properties on hydroxychloroquine degradation and pathways. J Photochem Photobiol A Chem 2021; 419:113453. [PMID: 34305356 PMCID: PMC8294631 DOI: 10.1016/j.jphotochem.2021.113453] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/04/2021] [Accepted: 07/15/2021] [Indexed: 01/18/2023]
Abstract
With the outbreak of coronavirus pandemic the use of Hydroxychloroquine increased. These compounds have harmful effects on the environment, such as generation of antibiotic-resistant bacteria; therefore, their degradation has been considered as one of the environmental challenges. The purpose of this research is to synthesize heterogeneous structure of TiO2/β-Bi2O3 by hydrothermal method for solar degradation of Hydroxychloroquine. Then, the accurate characteristics of the synthesized samples were investigated by XRD, FESEM, TEM, XPS, UV–vis (DRS), and BET surface analyzer. Photocatalytic degradation of Hydroxychloroquine was studied under sunlight, and it was found that the visible light absorption of TiO2 photocatalyst by mixing β-Bi2O3 nanoparticles was greatly increased and 91.89% of the degradation was obtained in 120 min of photocatalytic reaction. This improvement can be attributed to the increased specific surface area, efficient charge transfer, and reduced electron-hole recombination with the β-Bi2O3 compound. Kinetic studies also reacted to follow pseudo-first-order kinetics. Also, demonstrated high stability and recyclability for nanoparticles, so that after 6 cycles of using the catalyst in take, 70.59% degradation was performed. According to the results, the excellent photocatalytic degradation activity demonstrated by the TiO2/β-Bi2O3, therefore, it is a potential candidate for the process of removing other organic contaminants from aqueous solutions.
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Affiliation(s)
- Fatemeh Kargar
- Department of Environmental Sciences and Engineering, Faculty of Agriculture and Natural Resources, Ardakan University, P.O. Box 184, Ardakan, Iran
| | - Akram Bemani
- Department of Environmental Sciences and Engineering, Faculty of Agriculture and Natural Resources, Ardakan University, P.O. Box 184, Ardakan, Iran
| | - Mohammad Hossein Sayadi
- Department of Environmental Sciences and Engineering, Faculty of Agriculture and Natural Resources, Ardakan University, P.O. Box 184, Ardakan, Iran.,Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
| | - Najmeh Ahmadpour
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
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