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Hu H, Yao S, Xu Q, Cai X, Mo Z, Yang Z, Chen W, He Q, Dai X, Xu Z. Protein-coated cobalt oxide-hydroxide nanospheres deliver photosensitizer IR780 iodide for near-infrared light-triggered photodynamic/photothermal/chemodynamic therapy against colon cancer. J Mater Chem B 2023; 11:9185-9200. [PMID: 37724440 DOI: 10.1039/d3tb01657a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Phototherapy has garnered worldwide attention for its minimal invasiveness, controllability, and spatial selectivity in treating cancer. One promising approach involves the use of near-infrared dye IR780, which demonstrates both photodynamic therapy (PDT) and photothermal therapy (PTT) effects under 808 nm laser irradiation. However, this hydrophobic dye's toxicity and limited tumor targeting ability severely hamper its suitability for cancer applications. Herein, a biocompatible nanoplatform CoOOH-IR780@BSA (CoIRB) is developed to efficiently deliver IR780 and provide multi-mode treatments for colon tumors. Due to the nanocarrier coating, CoIRB nanoparticles demonstrated reliable dispersion and stability, and their biotoxicity was substantially reduced for safer blood circulation, which overcame the biological barrier of IR780. The nanoplatform has also shown considerable results in phototherapy in vivo and in vitro experiments, with successful inhibition of MC38 tumor growth through intravenous administration. Additionally, the introduction of cobalt ions could induce Fenton-like reactions to activate the production of toxic hydroxyl radicals (˙OH), exerting an assisted chemodynamic therapy (CDT) effect. Notably, these nanodrugs also exhibited potential as scavengers of reductive glutathione (GSH) and hydrogen sulfide (H2S), leading to amplifying oxidative damage of reactive oxygen species (ROS). Overall, the versatile therapeutic platform, CoIRB, has opened up considerable prospects as a biotherapeutic option for combining PDT/PTT/CDT against colon cancer.
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Affiliation(s)
- Han Hu
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Shijie Yao
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Qi Xu
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Xing Cai
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zhimin Mo
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Zhe Yang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Wenqiu Chen
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
- HAISO Technology Co., Ltd, Wuhan, Hubei 430074, P. R. China
| | - Qianyuan He
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Xiaofang Dai
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zushun Xu
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
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Heiba ZK, El-naggar A, Kamal A, Abd-Elkader OH, Mohamed MB. Optical and dielectric properties of PVC/TiO2/TBAI ionic liquid polymer electrolyte. OPTICAL MATERIALS 2023; 139:113764. [DOI: 10.1016/j.optmat.2023.113764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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El-Naggar AM, Heiba ZK, Kamal AM, Abd-Elkader OH, Mohamed MB. Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer. Polymers (Basel) 2023; 15:polym15092091. [PMID: 37177234 PMCID: PMC10181163 DOI: 10.3390/polym15092091] [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: 04/10/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
The most efficient way to create novel materials that may be used in a variety of optoelectronic applications is thought to be doped mixed polymers with appropriate fillers. Undoped and doped PVC polymers with ZnS/Mn formed at different temperatures were fabricated using the casting method. The Rietveld method was used to discover the structure and microstructure of Zn0.95Mn0.05S prepared at T = 300, 400, and 500 °C. The distribution and existence of the nanofiller over the PVC matrix were determined via XRD, FTIR, EDS, and SEM techniques. The effect of the preparation temperatures of the ZnS/Mn nanofiller on the absorption, transmittance, reflectance, refractive index, extinction coefficient, dielectric constant, AC conductivity, electrical modulus, and DC conductivity activation energy data of the PVC polymer was studied using the diffused reflectance technique. Doping PVC with ZnS/Mn (prepared at 300 °C) lowered the direct and indirect optical band gaps from 5.4 and 4.52 eV to minimum values of 4.55 and 3.63 eV. The fluorescence intensity of pure PVC is greatly enhanced upon loading with ZnS/Mn. The PVC exhibited two near UV peaks, one violet and one blue color, while, in addition, the doped polymers exhibited green and orange colors. The corresponding CIE diagram for all the samples was also determined.
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Affiliation(s)
- A M El-Naggar
- Research Chair of Exploitation of Renewable Energy Applications in Saudi Arabia, Physics & Astronomy Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Zein K Heiba
- Physics Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - A M Kamal
- Physics & Astronomy Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Omar H Abd-Elkader
- Physics & Astronomy Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohamed Bakr Mohamed
- Physics Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
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Synthesis of Mesoporous Silica Incorporated with Low Iron Concentration and Gelatin Co-Template via The Ultrasonication Method and Its Methylene Blue Photodegradation Performance. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2022. [DOI: 10.9767/bcrec.17.4.16210.831-838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this work, low iron concentration incorporated on mesoporous silica with gelatin co-template (Fe2O3/GSBA-15) has been successfully synthesized via the ultrasonication method. The physical, chemical, and structural properties of the samples were investigated with X-Ray Diffraction (XRD), Scanning Electron Microscope- Energy Dispersive X-Ray (SEM-EDX), Fourier Transform Infra-Red (FTIR), and N2 adsorption-desorption. Results showed good distribution of low concentration of iron oxide on the gelatin mesoporous silica GSBA-15. Elemental and surface analysis presented that iron oxide incorporation with higher concentration exhibited lower surface area due to the blocking pore. The highest photocatalytic activity on the methylene blue dye degradation was achieved at 10% Fe2O3/GSBA-15 with ~80% efficiency. The results revealed that the photocatalytic activity of Fe2O3/GSBA-15 enhanced with the presence of iron oxide. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Mubarak MF, Selim H, Elshypany R. Hybrid magnetic core-shell TiO 2@CoFe 3O 4 composite towards visible light-driven photodegradation of Methylene blue dye and the heavy metal adsorption: isotherm and kinetic study. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2022; 20:265-280. [PMID: 35669819 PMCID: PMC9163260 DOI: 10.1007/s40201-021-00774-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/25/2021] [Indexed: 05/10/2023]
Abstract
Magnetic core-shell TiO2@CoFe3O4 (TCM) composite photocatalytic particles with a core-shell structure were synthesized by the co-precipitation method as a novel catalyst for methylene blue (MB) dye degradation and adsorption efficiency of heavy-metal ion Pb(II) from aqueous solution. Various analytical techniques have verified the formation of the TCM core-shell through TEM, XRD, FT-IR, Raman, PL, and UV analysis. The presence of TiO2 and cobalt magnetite in the TCM core shell is confirmed by XRD analysis. The formation of a homogenous CoFe3O4shell on TiO2 spheres is confirmed by HR-TEM investigation. TiO2 nanoparticle has a rutile structure with an average crystallite size of about 57.44 and a TCM core-shell of about 64.62 nm. From UV and PL studies, it was found that the core shell absorbs the visible range of the electromagnetic spectrum, which improves the effective separation between photo carriers. This study focused on several factors that influence metal ion adsorption, including initial concentrations, adsorbent dose, pH, and contact time. The TCM nanocomposite successfully separated the heavy metal ion Pb(II) from aqueous solutions, and the model predictions exactly matched the experimental results. For TCM material, the maximum adsorption efficiency for Pb(II) was 33.09 mg/g. The photocatalytic performance of TiO2 and TCM is about 12% and 91% after 60 min for MB dye degradation. It was found that TiO2@CoFe3O4 core-shell nanoparticles perform better as photo catalysts than pure TiO2 and CoFe3O4due to their high efficiency and reusability. Furthermore, the analysis revealed that heavy metal adsorption from aqueous solutions could be reused over seven cycles with no adsorption capacity modification.
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Affiliation(s)
- Mahmoud F. Mubarak
- Petroleum Application Department, Core Lab Analysis Center, Egyptian Petroleum Research Institute, Nasr city, Cairo, P.B. 11727 Egypt
| | - Hanaa Selim
- Analysis and Evaluation Department, Central Lab, Egyptian Petroleum Research Institute, Nasr city, Cairo, P.B. 11727 Egypt
| | - Rania Elshypany
- Analysis and Evaluation Department, Central Lab, Egyptian Petroleum Research Institute, Nasr city, Cairo, P.B. 11727 Egypt
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Zhang Y, Shi Z, Sun T, Zhang D, Zhang X, Lin X, Li C, Wang L, Song J, Lin Q. The preparation of a novel eco-friendly methylene Blue/TiO2/PVC composite film and its photodegradability. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1811317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yan Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Zaifeng Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Tianyi Sun
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Dashuai Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Xiaopeng Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Xiaoxue Lin
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Chen Li
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Lili Wang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Junjun Song
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
| | - Qiang Lin
- Key Laboratory of Water Pollution Treatment & Resource Reuse, Hainan Normal University, Haikou, P.R. China,
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P.R. China
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Nonisothermal Kinetic Analysis and AC Conductivity for Polyvinyl Chloride (PVC)/Zinc Oxide (ZnO) Nanocomposite. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/1254301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The behavior of polyvinyl chlorine (PVC)/zinc oxide (ZnO) nanoparticles was investigated. To improve the dispersion and distribution of zinc nanoparticles within the host polymer (PVC), they were treated with water before being added to the polymer. The nanocomposite samples were prepared by casting method using different weight ratios of ZnO nanoparticles. The prepared nanocomposite samples were characterized by thermogravimetric analysis (TGA). Both thermal stability and kinetic analysis of the prepared samples were investigated. The ZnO nanoparticles lower the activation energy and decrease the thermal stability of PVC. Kissinger, Flynn-Wall-Ozawa, and Kissinger-Akahira-Sunose models were used in the nonisothermal kinetic analysis of PVC/ZnO nanocomposite samples. The thermal stability behavior due to the addition of zinc oxide nanoparticles was explained and correlated with the behavior of the kinetic parameters of the samples. The AC conductivity as function of frequency and temperature was also investigated. The addition of ZnO nanoparticle increases the AC conductivity, and the temperature-independent region decreased by increasing temperature. Both S and A coefficients were predicted using the Jonscher power law and OriginLab software. The trends of S and A coefficients were discussed based on the glass transition of the host polymer.
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Rahman APH, Dash S, Mohanty PS, Mishra A, Lundborg CS, Tripathy SK. Sonophotocatalytic disinfection of Shigella species under visible light irradiation: Insights into its molecular mechanism, antibacterial resistance and biofilm formation. ENVIRONMENTAL RESEARCH 2020; 187:109620. [PMID: 32416355 DOI: 10.1016/j.envres.2020.109620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/25/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Microbial contamination of water is one of the major sources of many diseases worldwide. Evolution of antibacterial resistance (ABR) alongside the caveats in most of the water treatment methods causes the severity of the current problem extremely vexing. This calls for an urgent need to develop new treatment methods aiming to reduce the microbial as well as ABR load in the environment. Herein, we successfully developed a visible light assisted sonophotocatalysis (SPC) using Fe/ZnO nanoparticles (NPs) for the disinfection of Shigella dysenteriae. A consortia containing S. dysenteriae and S. flexineri was also completely disinfected using SPC. Growth conditions of S. dysenteriae like growth phases and growth temperaturehad different outcomes on the overall efficacy of SPC. Compared with catalysts such as ZnO and TiO2, Fe/ZnO resulted in better disinfection. Multi-ROS production, mostly containing h+ and O2· radicals, due to the electron displacement in the catalyst and acoustic cavitation was identified as the factors behind bacterial lethality. The ROS produced was found to interfere with the metabolic activities of S. dysenteriae by causing membrane perturbation. We identified DNA damage inside the cells and the subsequent release of intracellular components. The compositional changes in the fatty acid makeup of the cells were altered as a result of SPC and few fatty acid markers indicating the stress posed by SPC were also identified. Loss of ABR in S. dysenteriae was also recorded post SPC treatment. Abatement in the biofilm forming ability of the injured bacterial cells was also recorded, proving the extremity of stress induced by SPC. Hence, the excellent efficacy of SPC in disinfecting bacteria is proposed for tertiary water treatment applications.
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Affiliation(s)
- A P Habeeb Rahman
- School of Chemical Technology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India; School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India
| | - Swagatika Dash
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India
| | - Priti Sundar Mohanty
- School of Chemical Technology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India
| | - Amrita Mishra
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India
| | | | - Suraj K Tripathy
- School of Chemical Technology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India; School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, 751024, Odisha, India.
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Balakumar V, Kim H, Manivannan R, Kim H, Ryu JW, Heo G, Son YA. Ultrasound-assisted method to improve the structure of CeO 2@polyprrole core-shell nanosphere and its photocatalytic reduction of hazardous Cr 6. ULTRASONICS SONOCHEMISTRY 2019; 59:104738. [PMID: 31476700 DOI: 10.1016/j.ultsonch.2019.104738] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 08/12/2019] [Accepted: 08/18/2019] [Indexed: 06/10/2023]
Abstract
In this work, the CeO2@polypyrrole (CeO2@PPy) core-shell nanosphere has been synthesized via an ultra-sonication method using bath type (WUC-D22H, Daihan Scientific, Korea) and they are utilized for the photo-reduction of hazardous Cr6+ to benign Cr3+. The ultrasonic frequency and power were 20 kHz and 100 W, respectively. The PPy shielded CeO2 in aqueous solution could prevent the dissolution of CeO2 and to improve the photocatalytic ability of CeO2. X-ray diffraction was used to confirm the crystalline structure of as prepared CeO2@PPy core-shell and FT-IR was used to identify the functional groups. The uniform sized core of PPy and shell of CeO2 were observed by transition electron microscopy. The ultrasonic assisted synthesized CeO2@PPy core-shell exhibits a narrow bandgap (UV-DRS) and good reduction efficiency with higher reusability and stability compared to pure CeO2, PPy and mechanical mixing of CeO2@PPy. Moreover, the synergistic effect of CeO2 and PPy core-shell structure facilitate a higher electron transfer rate and prolong lifetime of photogenerated electron-hole pairs which can achieve good reduction rate of 98.6% within 30 min. In particular, the pH, catalyst, and Cr6+ concentration effects were optimized in photocatalytic reduction reactions. Meanwhile, this photocatalysis with fast and effective electron transfer mechanism for the Cr6+ reduction was elucidated. This method opens a new window for simple fabrication of conducting polymers-based metal oxide nanocomposite towards wastewater remediation and beyond.
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Affiliation(s)
- Vellaichamy Balakumar
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Hyungjoo Kim
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Ramalingam Manivannan
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Hyorim Kim
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Ji Won Ryu
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Gisu Heo
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Young-A Son
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.
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Mousavi-Kamazani M. Facile sonochemical-assisted synthesis of Cu/ZnO/Al 2O 3 nanocomposites under vacuum: Optical and photocatalytic studies. ULTRASONICS SONOCHEMISTRY 2019; 58:104636. [PMID: 31450299 DOI: 10.1016/j.ultsonch.2019.104636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 06/03/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
This paper reports on the synthesis of Cu/ZnO/Al2O3 nanocomposites via a facile sonochemical-assisted approach using new starting reactants. This study was conducted to synthesis and photocatalytic evaluation of the Cu/ZnO/Al2O3 nanocomposite in vacuum conditions. The XRD results showed that Cu/ZnO/Al2O3 and CuO/ZnO/Al2O3 nanocomposites could be obtained after annealing at 600 °C for 3 h in vacuum conditions and in the air, respectively. The effects of Cu:Zn:Al ratio, ultrasonic irradiation, power, time, and capping agent on the product composition and morphology were also studied. Finally, the efficiency of various as-synthesized Cu/ZnO/Al2O3 nanocomposites for decolorization of methylene blue were evaluated. According to the results, using ultrasonic irradiation and annealing under vacuum, the efficiency is improved up to 100%. Because in this situation Cu/Cu2O/ZnO/Al2O3 is formed, which has a better absorption (due to Cu2O) and conductivity (due to Cu) than CuO/ZnO/Al2O3 for the photocatalysis process.
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Hwa KY, Karuppaiah P, Gowthaman NSK, Balakumar V, Shankar S, Lim HN. Ultrasonic synthesis of CuO nanoflakes: A robust electrochemical scaffold for the sensitive detection of phenolic hazard in water and pharmaceutical samples. ULTRASONICS SONOCHEMISTRY 2019; 58:104649. [PMID: 31450344 DOI: 10.1016/j.ultsonch.2019.104649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 06/10/2023]
Abstract
Hydroquinone (HQ), a phenolic compound is expansively used in many industrial applications and due to the utilization of HQ, water pollution tragedies frequently found by the improper handling and accidental outflows. When HQ is adsorbed directly through the skin that create toxic effects to human by affecting kidney, liver, lungs, and urinary tract and hence, a highly selective and sensitive technique is required for its quantification. Herein, we have developed the ultrasonic synthesis of copper oxide nanoflakes (CuO-NFs) using ultrasonic bath (20 kHz, 100 W) and successfully employed for the sensitive detection of the environmental hazardous pollutant HQ. The formed CuO-NFs were confirmed by X-ray diffraction, field emission scanning electron microscopy (FE-SEM), FT-IR spectroscopy and UV-visible spectroscopy and fabricated with the screen-printed carbon electrode (SPCE). The SEM images exhibited the uniform CuO-NFs with an average width of 85 nm. The linker-free CuO-NFs fabricated electrode showed the appropriate wide range of concentrations from 0.1 to 1400 µM and the limit of detection was found to be 10.4 nM towards HQ. The fabricated sensor having long term stability and sensitivity was successfully applied for the environmental and commercial real sample analysis and exhibited good recovery percentage, implying that the SPCE/CuO-NFs is an economically viable and benign robust scaffold for the determination of HQ.
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Affiliation(s)
- KuO Yuan Hwa
- Graduate Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei, Taiwan 106, People's Republic of China.
| | - Palpandi Karuppaiah
- Graduate Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei, Taiwan 106, People's Republic of China
| | - N S K Gowthaman
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| | - Vellaichamy Balakumar
- Department of Advanced Organic Materials Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-764, South Korea
| | - Sekar Shankar
- Centre for Nanoscience and Nanotechnology, Department of Chemistry, The Gandhigram Rural Institute - Deemed to be University, Gandhigram 624302, India
| | - Hong Ngee Lim
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
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Dossin Zanrosso C, Piazza D, Lansarin MA. Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis. J Appl Polym Sci 2019. [DOI: 10.1002/app.48417] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Crissie Dossin Zanrosso
- Department of Chemical Engineering, Federal University of Rio Grande do Sul 90035‐007 Porto Alegre RS Brazil
| | - Diego Piazza
- Polymer Laboratory, University of Caxias do Sul 95070‐560 Caxias do Sul RS Brazil
| | - Marla Azário Lansarin
- Department of Chemical Engineering, Federal University of Rio Grande do Sul 90035‐007 Porto Alegre RS Brazil
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Stolzenburg P, Lorenz T, Dietzel A, Garnweitner G. Microfluidic synthesis of metal oxide nanoparticles via the nonaqueous method. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.07.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Cheng L, Hu X, Hao L. Ultrasonic-assisted in-situ fabrication of BiOBr modified Bi 2O 2CO 3 microstructure with enhanced photocatalytic performance. ULTRASONICS SONOCHEMISTRY 2018; 44:137-145. [PMID: 29680595 DOI: 10.1016/j.ultsonch.2018.02.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/06/2018] [Accepted: 02/10/2018] [Indexed: 06/08/2023]
Abstract
Via an ultrasonic-assisted in-situ etching method, BiOBr modified Bi2O2CO3 microstructures were fabricated in short time. The samples were characterized by XRD, SEM, TEM, BET, UV-Vis, XPS and PL spectra methods. Rhodamine B (RhB) aqueous solution was applied to evaluate the photocatalytic activities of the as-prepared samples. The results showed that the sample prepared at pH of 2 in which the molar ratio of BiOBr and Bi2O2CO3 was 0.69:1 had the largest specific surface area, the best utilization for ultraviolet and visible light and efficient separation efficiency of charge carriers, contributing to its best photocatalytic activity. O2- was proved to be main active species in RhB photodegradation process. Last, the photocatalytic mechanism of the composite was discussed in detail.
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Affiliation(s)
- Lijun Cheng
- Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, College of Mechanical Engineering, Tianjin University of Science & Technology, 300222, China.
| | - Xumin Hu
- Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, College of Mechanical Engineering, Tianjin University of Science & Technology, 300222, China
| | - Liang Hao
- Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, College of Mechanical Engineering, Tianjin University of Science & Technology, 300222, China
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Mallakpour S, Shamsaddinimotlagh S. Employment of ultrasonic waves for the preparation of PVA/TiO2-BSA nanocomposites: Mechanical, thermal, and optical properties. J Appl Polym Sci 2018. [DOI: 10.1002/app.46558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Islamic Republic of Iran
- Research Institute for Nanotechnology and Advanced Materials; Isfahan University of Technology; Isfahan 84156-83111 Islamic Republic of Iran
| | - Sima Shamsaddinimotlagh
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Islamic Republic of Iran
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