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Zhang T, Huang X, Qiao J, Liu Y, Zhang J, Wang Y. Recent developments in synthesis of attapulgite composite materials for refractory organic wastewater treatment: a review. RSC Adv 2024; 14:16300-16317. [PMID: 38769962 PMCID: PMC11103670 DOI: 10.1039/d4ra02014f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 05/14/2024] [Indexed: 05/22/2024] Open
Abstract
Attapulgite clay, due to its unique crystalline hydrated magnesium-aluminium silicate composition and layer-chain structure, possesses exceptional adsorption and catalytic properties, which enable it or its composites to be utilized as adsorbents and catalysts for wastewater treatment. But the drawbacks of attapulgite are also very obvious, such as relatively low specific surface area (compared to traditional adsorbents such as activated carbon and activated alumina), easy aggregation, and difficulty in dispersion. In order to fully utilize and improve the performance of attapulgite, researchers have conducted extensive research on its modification, but few specialized works have comprehensively evaluated the synthesis, applications and challenges for attapulgite-based composite materials in refractory organic wastewater treatments. This paper provides a comprehensive review of controllable preparation strategies, characterization methods and mechanisms of attapulgite-based composite materials, as well as the research progress of these materials in refractory organic wastewater treatment. Based on this review, constructive recommendations, such as deep mechanism analysis from molecular level multi-functional attapulgite-based material developments, and using biodegradable materials in attapulgite-based composites, were proposed.
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Affiliation(s)
- Ting Zhang
- School of Petrochemical Engineering, Lanzhou University of Technology Lanzhou P. R. China
| | - Xiaoyi Huang
- School of Petrochemical Engineering, Lanzhou University of Technology Lanzhou P. R. China
| | - Jiaojiao Qiao
- School of Petrochemical Engineering, Lanzhou University of Technology Lanzhou P. R. China
| | - Yang Liu
- School of Petrochemical Engineering, Lanzhou University of Technology Lanzhou P. R. China
| | - Jingjing Zhang
- School of Petrochemical Engineering, Lanzhou University of Technology Lanzhou P. R. China
| | - Yi Wang
- School of Petrochemical Engineering, Lanzhou University of Technology Lanzhou P. R. China
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Bilal M, Ikram M, Shujah T, Haider A, Naz S, Ul-Hamid A, Naz M, Haider J, Shahzadi I, Nabgan W. Chitosan-Grafted Polyacrylic Acid-Doped Copper Oxide Nanoflakes Used as a Potential Dye Degrader and Antibacterial Agent: In Silico Molecular Docking Analysis. ACS OMEGA 2022; 7:41614-41626. [PMID: 36406528 PMCID: PMC9670908 DOI: 10.1021/acsomega.2c05625] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
This study examined the catalytic and bactericidal properties of polymer-doped copper oxide (CuO). For this purpose, a facile co-precipitation method was used to synthesize CuO nanostructures doped with CS-g-PAA. Various concentrations (2, 4, and 6%) of dopants were systematically incorporated into a fixed amount of CuO. The prepared samples were analyzed by different optical, structural, and morphological characterizations. Field emission scanning electron microscopy and transmission electron microscopy micrographs indicated that doping transformed CuO's agglomerated rod-like surface morphology to form nanoflakes. UV-vis spectroscopy revealed that the optical spectra of the samples exhibit a redshift after doping, leading to a decrease in band gap energy from 3.3 to 2.5 eV. The purpose of the study was to test the catalytic activity of pristine and CS-g-PAA doped CuO for the degradation of methylene blue in acidic, basic, and neutral conditions using NaBH4 as a reducing agent in an aqueous medium. Furthermore, antibacterial activity was evaluated against Gram-positive and Gram-negative bacteria, namely, Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Overall, enhanced bactericidal performance was observed upon doping CS-g-PAA into CuO, i.e., 4.25-6.15 and 4.40-8.15 mm against S. aureus and 1.35-4.20 and 2.25-5.25 mm against E. coli at the lowest and highest doses, respectively. The relevant catalytic and bactericidal action mechanisms of samples are also proposed in the study. Moreover, in silico molecular docking studies illustrated the role of these prepared nanomaterials as possible inhibitors of FabH and FabI enzymes of the fatty acid biosynthetic pathway.
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Affiliation(s)
- Muhammad Bilal
- Solar
Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore54000, Punjab, Pakistan
| | - Muhammad Ikram
- Solar
Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore54000, Punjab, Pakistan
| | - Tahira Shujah
- Department
of Physics, University of Central Punjab, Lahore54000, Punjab, Pakistan
| | - Ali Haider
- Department
of Clinical Medicine, Faculty of Veterinary and Animal Sciences, Muhammad
Nawaz Shareef, University of Agriculture, 66000Multan, Punjab, Pakistan
| | - Sadia Naz
- Tianjin
Institute of Industrial Biotechnology, Chinese
Academy of Sciences, Tianjin300308, China
| | - Anwar Ul-Hamid
- Core
Research Facilities, King Fahd University
of Petroleum & Minerals, Dhahran31261, Saudi Arabia
| | - Misbah Naz
- Department
of Chemistry, University of the Education, 54000Lahore, Pakistan
| | - Junaid Haider
- Tianjin
Institute of Industrial Biotechnology, Chinese
Academy of Sciences, Tianjin300308, China
| | - Iram Shahzadi
- Punjab
University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore54000, Pakistan
| | - Walid Nabgan
- Departament
d’Enginyeria Química, Universitat
Rovira i Virgili, 43007Tarragona, Spain
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Abromaitis V, Svaikauskaite J, Sulciute A, Sinkeviciute D, Zmuidzinaviciene N, Misevicius S, Tichonovas M, Urniezaite I, Jankunaite D, Urbonavicius M, Varnagiris S, Dzingeleviciene R, Baranauskis K, Martuzevicius D. Ozone-enhanced TiO 2 nanotube arrays for the removal of COVID-19 aided antibiotic ciprofloxacin from water: Process implications and toxicological evaluation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115515. [PMID: 35949077 DOI: 10.1016/j.jenvman.2022.115515] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/25/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
The purpose of this study was to evaluate the performance of synthesized TiO2 nanotube arrays (NTAs) for the removal of the COVID-19 aided antibiotic ciprofloxacin (CIP) and the textile dye methylene blue (MB) from model wastewater. Synthesis of TiO2 NTAs showed that anodization potential and calcination temperatures directly influence nanotube formation. The increased anodization potential from 10 to 40 V resulted in the development of larger porous nanotubes with a diameter of 36-170 nm, while the collapse of the tubular structure was registered at the highest applied potential. Furthermore, it was found that the 500 °C calcination temperature was the most prominent for the formation of the most photocatalytically active TiO2 NTAs, due to the optimal anatase/rutile ratio of 4.60. The degradation of both model compounds was achieved with all synthesized TiO2 NTAs; however, the most photocatalytically active NTA sample was produced at 30 V and 500 °C. Compared to photocatalysis, CIP degradation was greatly enhanced by 5-25 times when ozone was introduced to the photocatalytic cell (rates 0.4-4.2 × 10-1 min-1 versus 0.07-0.2 × 10-1 min-1). This resulted in the formation of CIP degradation by-products, with different mass-to-charge ratios from [M+H]+ 346 to 273 m/z. Even though the CIP degradation pathway is rather complex, three main mechanisms, decarboxylation, hydroxylation reaction, and piperazine ring cleavage, were proposed and explained. Furthermore, treated samples were placed in contact with the crustaceans Daphnia magna. It was found that 100% mortality was achieved when approximately 60% of the remaining TOC was present in the samples, indicating that toxic degradation by-products were formed.
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Affiliation(s)
- V Abromaitis
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania.
| | - J Svaikauskaite
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - A Sulciute
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - D Sinkeviciute
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - N Zmuidzinaviciene
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - S Misevicius
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - M Tichonovas
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - I Urniezaite
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - D Jankunaite
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
| | - M Urbonavicius
- Lithuanian Energy Institute, Breslaujos st. 3, LT-44403, Kaunas, Lithuania
| | - S Varnagiris
- Lithuanian Energy Institute, Breslaujos st. 3, LT-44403, Kaunas, Lithuania
| | - R Dzingeleviciene
- Marine Research Institute, Klaipeda University, Universiteto av. 17, LT-92294, Klaipeda, Lithuania
| | - K Baranauskis
- Marine Research Institute, Klaipeda University, Universiteto av. 17, LT-92294, Klaipeda, Lithuania
| | - D Martuzevicius
- Kaunas University of Technology, Chemical Faculty of Technology, Radvilenu st. 19, LT-50254, Kaunas, Lithuania
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