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Mahmoud ZH, Ajaj Y, Hussein AM, Al-Salman HNK, Mustafa MA, Kadhum EH, Abdullaev S, Khuder SA, Ghadir GK, Hameed SM, Muzammil K, Islam S, Kianfar E. CdIn 2Se 4@chitosan heterojunction nanocomposite with ultrahigh photocatalytic activity under sunlight driven photodegradation of organic pollutants. Int J Biol Macromol 2024; 267:131465. [PMID: 38604427 DOI: 10.1016/j.ijbiomac.2024.131465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/24/2024] [Accepted: 04/06/2024] [Indexed: 04/13/2024]
Abstract
This research focused on synthesizing a CdIn2Se4@Ch nanocomposite by doping CdIn2Se4 into chitosan using a photolysis assisted ultrasonic process. The aim was to enhance the photodegradation efficiency of ofloxacin and 2,4-dichlorophenoxyacetic acid under sunlight. The synthesized CdIn2Se4@Ch nanocomposite was investigated via different techniques, including XRD, XPS, FTIR, TEM, DSC, TGA, UV-Vis and PL. The study also investigated the influence of various reaction parameters, including the effects of inorganic and organic ions. The synthesized nanocomposite demonstrated exceptional efficiency, achieving 86 % and 95 % removal rates, with corresponding rate constants of 0.025 and 0.047 min-1. This performance surpasses that of CdIn2Se4 by approximately 1.35 and 2.25 times, respectively. The values of COD were decreased to 78 and 86 % for ofloxacin and 2,4-dichlorophenoxyacetic, while the TOC values decreased to 71 and 84 %, respectively, from their premier values. The improvement in performance is associated with the introduction of CdIn2Se4 into chitosan, resulting in the self-integration of Cd into the catalyst. This creates a localized accumulation point for electrons, enhancing the efficiency of charge separation and further reducing the surface charge of chitosan. Experimental evidence suggests that superoxide and hydroxyl radicals play a significant role in the photodegradation of pollutants. Additionally, the nanocomposite exhibits excellent stability and can be reused up to five times, indicating remarkable stability and reusability of the developed photocatalyst.
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Affiliation(s)
- Zaid H Mahmoud
- Department of Chemistry, College of Sciences, University of Diyala, Iraq.
| | | | - Ali M Hussein
- Department of Biomedical Sciences, College of Sciences, Cihan University-Erbil, Kurdistan Region, Iraq
| | - H N K Al-Salman
- Pharmaceutical Chemistry Department, College of Pharmacy, University of Basrah, Basrah, Iraq
| | | | | | - Sherzod Abdullaev
- Faculty of Chemical Engineering, New Uzbekistan University, Tashkent, Uzbekistan; Department of Science and Innovation, Tashkent State Pedagogical University Named After Nizami, Tashkent, Uzbekistan
| | | | | | - Safaa Mustafa Hameed
- Department of Optics, College of Health & Medical Technology, Sawa University, Almuthana, Iraq
| | - Khursheed Muzammil
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, KSA, Saudi Arabia
| | - Saiful Islam
- Civil Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
| | - Ehsan Kianfar
- Mechanical Engineering Department, Faculty of Engineering and Pure Sciences, Istanbul Medeniyet University, Istanbul, Turkey.
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Hiep H, Tuan Anh P, Dao VD, Viet Quang D. Greener Method for the Application of TiO 2 Nanoparticles to Remove Herbicide in Water. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2023; 2023:3806240. [PMID: 37469972 PMCID: PMC10353906 DOI: 10.1155/2023/3806240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/22/2023] [Accepted: 06/14/2023] [Indexed: 07/21/2023]
Abstract
TiO2 nanoparticles have emerged as a great photocatalyst to degrade organic contaminants in water; however, the nanoparticles dispersed in water could be difficult to be recovered and potentially become contaminant. Herbicide like 2,4-dichlorophenoxyacetic acid (2,4-D) used in agriculture usually ends up with a large fraction remaining in water and sediment, which may cause potential risk to human health and the ecosystem. This study proposes a greener method to utilize TiO2 as photocatalyst to remove 2,4-D from water. Accordingly, TiO2 nanoparticles (10-45 nm) were synthesized and grafted on lightweight fired clay to generate a TiO2-based floating photocatalyst. Experimental testing revealed that 60.2% of 2,4-D (0.1 mM) can be decomposed in 250 min under UV light with TiO2-grafted lightweight fired clay floating on water. Degradation fits well into the pseudo-first-order kinetic model. The floating photocatalysts can degrade approximately 50% 2,4-D in 250 min under sunlight and the degradation efficiency is stable for cycles. The results revealed that the fabrication of floating photocatalyst could be a promising and greener way to remove herbicide contaminants in water using TiO2.
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Affiliation(s)
- Hoang Hiep
- Academy for Green Growth, Vietnam National University of Agriculture, Gia Lam, Hanoi, Vietnam
| | - Pham Tuan Anh
- Falcuty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
| | - Van-Duong Dao
- Falcuty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
| | - Dang Viet Quang
- Falcuty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
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Altuner EE, Gulbagca F, Tiri RNE, Aygun A, Sen F. Highly efficient palladium-zinc oxide nanoparticles synthesized by biogenic methods: Characterization, hydrogen production and photocatalytic activities. CHEMICAL ENGINEERING JOURNAL ADVANCES 2023. [DOI: 10.1016/j.ceja.2023.100465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Alalaiwe A, Lin YC, Lin CF, Huang CC, Wang PW, Fang JY. TiO 2-embedded mesoporous silica with lower porosity is beneficial to adsorb the pollutants and retard UV filter absorption: A possible application for outdoor skin protection. Eur J Pharm Sci 2023; 180:106344. [PMID: 36455708 DOI: 10.1016/j.ejps.2022.106344] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/04/2022]
Abstract
The purpose of the current investigation was to develop multifunctional TiO2-embedded mesoporous silica incorporating avobenzone to protect against environmental stress through pollutant adsorption and UVA protection. We sought to explore the effect of the mesoporous porosity on the capability of contaminant capture and the suppression of avobenzone skin penetration. The porosity of the mesoporous silica was tuned by adjusting the ratio of template triblock copolymers (Pluronic P123 and F68). The Pluronic P123:F68 ratios of 3:1, 2:2, and 1:3 produced mesoporous silica with pore volumes of 0.66 (TiO2/SBA-L), 0.47 (TiO2/SBA-M), and 0.25 (TiO2/SBA-S) cm3/g, respectively. X-ray scattering and electron microscopy confirmed the SBA-15 structure of the as-prepared material had a size of 3-5 μm. The maximum adsorbability of fluoranthene and methylene blue was found to be 43% and 53% for the TiO2/SBA-S under UVA light, respectively. The avobenzone loaded into the mesoporous silica demonstrated the synergistic effect of in vitro UVA protection, reaching an UVA/UVB absorbance ratio of near 1.5 (Boots star rating = 5). The encapsulation of avobenzone into the TiO2/SBA-S lessened cutaneous avobenzone absorption from 0.76 to 0.50 nmol/mg, whereas no reduction was detected for the TiO2/SBA-L. The avobenzone-loaded TiO2/SBA-S hydrogel exhibited a greater improvement in skin barrier recovery and proinflammatory mediator mitigation compared to the SBA-S hydrogel (without TiO2). The cytokines/chemokines in the photoaged skin were reduced by two- to three-fold after TiO2/SBA-S treatment compared to the non-treatment control. Our data suggested that the mesoporous formulation with low porosity and a specific surface area showed effective adsorbability and UVA protection, with reduced UVA filter absorption. The versatility of the developed mesoporous system indicated a promising potential for outdoor skin protection.
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Affiliation(s)
- Ahmed Alalaiwe
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia
| | - Yu-Chih Lin
- Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu, Taiwan
| | - Chwan-Fwu Lin
- Department of Cosmetic Science, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan,, Taoyuan, Taiwan
| | - Chih-Chi Huang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan, Taiwan
| | - Pei-Wen Wang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Jia-You Fang
- Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan,, Taoyuan, Taiwan; Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan, Taiwan.
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Vinayagam R, Sharma G, Murugesan G, Pai S, Gupta D, Narasimhan MK, Kaviyarasu K, Varadavenkatesan T, Selvaraj R. Rapid photocatalytic degradation of 2, 4-dichlorophenoxy acetic acid by ZnO nanoparticles synthesized using the leaf extract of Muntingia calabura. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133127] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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