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Yu H, Liu Z, Chen L, He X, Weng Y, Li W, Zheng X, Pan Q, Zhang R, Zhang X, Wu W. Transforming Natural Eggshell and Diatomite into Bioactive Calcium Silicate Material for Bone Regeneration. ACS OMEGA 2024; 9:19440-19450. [PMID: 38708237 PMCID: PMC11064024 DOI: 10.1021/acsomega.4c00904] [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: 01/28/2024] [Revised: 03/02/2024] [Accepted: 04/05/2024] [Indexed: 05/07/2024]
Abstract
Calcium silicate (CS), a new and important bioceramic bone graft material, is prepared by using eggshells, which have a porous structure and are rich in calcium ions. Furthermore, the preparation of new CS materials using eggshells and diatomaceous earth minimizes their negative impact on the environment. In this study, we prepared CS materials using a high-temperature calcination method. The composition of the material was demonstrated by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analysis. Scanning electron microscopy (SEM) analysis confirmed the porous structure of the CS material. We also introduced ZnO to prepare ZnO-CS with antibacterial properties and showed that ZnO-CS exhibits excellent antibacterial effects through in vitro antibacterial experiments. Subsequent in vitro mineralization experiments demonstrated that ZnO-CS promoted the formation of a hydroxyapatite layer. Furthermore, in vitro cytotoxicity experiments demonstrated that ZnO-CS had very good biosafety and promoted cell proliferation. These findings were confirmed through subsequent cell proliferation experiments. Our results indicate that the novel ZnO-CS is a promising candidate for bone tissue engineering.
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Affiliation(s)
- Haiming Yu
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Zhihua Liu
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Lingying Chen
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiaoyu He
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Yiyong Weng
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Weizhe Li
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiaozhi Zheng
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Qunlong Pan
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Rongmou Zhang
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiaoyan Zhang
- Key
Laboratory of Chemical Materials and Green Nanotechnology, College
of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, Fujian 362000, China
| | - Wenhua Wu
- Department
of Spinal Surgery, The Second Clinical Medical College of Fujian Medical
University, The Second Affiliated Hospital
of Fujian Medical University, Quanzhou, Fujian 362000, China
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Sun X, Zhang M, Liu J, Hui G, Chen X, Feng C. The Art of Exploring Diatom Biosilica Biomaterials: From Biofabrication Perspective. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2304695. [PMID: 38044309 PMCID: PMC10853744 DOI: 10.1002/advs.202304695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/18/2023] [Indexed: 12/05/2023]
Abstract
Diatom is a common single-cell microalgae with large species and huge biomass. Diatom biosilica (DB), the shell of diatom, is a natural inorganic material with a micro-nanoporous structure. Its unique hierarchical porous structure gives it great application potential in drug delivery, hemostat materials, and biosensors, etc. However, the structural diversity of DB determines its different biological functions. Screening hundreds of thousands of diatom species for structural features of DB that meet application requirements is like looking for a needle in a seaway. And the chemical modification methods lack effective means to control the micro-nanoporous structure of DB. The formation of DB is a typical biomineralization process, and its structural characteristics are affected by external environmental conditions, genes, and other factors. This allows to manipulate the micro-nanostructure of DB through biological regulation method, thereby transforming the screening mode of the structure function of DB from a needle in a seaway to biofabrication mode. This review focuses on the formation, biological modification, functional activity of DB structure, and its application in biomaterials field, providing regulatory strategies and research idea of DB from the perspective of biofabrication. It will also maximize the possibility of using DB as biological materials.
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Affiliation(s)
- Xiaojie Sun
- College of Marine Life ScienceOcean University of China5# Yushan RoadQingdaoShandong Province266003China
| | - Mengxue Zhang
- College of Marine Life ScienceOcean University of China5# Yushan RoadQingdaoShandong Province266003China
| | - Jinfeng Liu
- College of Marine Life ScienceOcean University of China5# Yushan RoadQingdaoShandong Province266003China
- Department of StomatologyQingdao Women and Children’s Hospital, QingdaoQingdao266034China
| | - Guangyan Hui
- Department of StomatologyQingdao Special Servicemen Recuperation Center of PLA NavyNo.18 Yueyang RoadQingdaoShandong Province266071China
| | - Xiguang Chen
- College of Marine Life ScienceOcean University of China5# Yushan RoadQingdaoShandong Province266003China
- Sanya Oceanographic Institute, Ocean University of ChinaYazhou Bay Science & Technology CityFloor 7, Building 1, Yonyou Industrial ParkSanyaHainan Province572024P. R. China
- Laoshan Laboratory1# Wenhai RoadQingdaoShandong Province266000China
| | - Chao Feng
- College of Marine Life ScienceOcean University of China5# Yushan RoadQingdaoShandong Province266003China
- Sanya Oceanographic Institute, Ocean University of ChinaYazhou Bay Science & Technology CityFloor 7, Building 1, Yonyou Industrial ParkSanyaHainan Province572024P. R. China
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Jiang Z, Zhu H, Guo W, Ren Q, Ding Y, Chen S, Chen J, Jia X. Ag 3VO 4/g-C 3N 4/diatomite ternary compound reduces Cr(vi) ion in aqueous solution effectively under visible light. RSC Adv 2022; 12:7671-7679. [PMID: 35424717 PMCID: PMC8982247 DOI: 10.1039/d1ra09295b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/23/2022] [Indexed: 01/19/2023] Open
Abstract
In recent years, the conversion of Cr(vi) to Cr(iii) ions by semiconductor photocatalysis technology has been considered to be an effective method to solve this problem. In this paper, a kind of ternary composite, Ag3VO4/g-C3N4/diatomite (AVO/CN/DT), was synthesized by a two-step method (annealing-precipitation). Through a series of characterization analyses, the crystal morphology, microstructure, optical properties and photoelectrochemical properties of the material were characterized and analyzed. The band edge of g-C3N4 was red-shifted due to the addition of Ag3VO4 and diatomite. Consequently, the visible light response of the composites was intensified. Taking Cr(vi) in aqueous solution as a target pollutant, the degradation efficiency using 4AVO/CN/0.06DT reached 70% within 60 min under visible light irradiation, far exceeding the degradation efficiency using the pure substances. The cyclic degradation performance of the composite material was tested, and it still had a stable degradation effect after three cycles. The degradation efficiency in solution at different pH values was investigated. When the pH value of the solution gradually increased, the degradation efficiency gradually decreased, which was mainly caused by the different forms of Cr(vi) under different pH values. A corresponding degradation mechanism was proposed. Diatomite provided a reaction site for Ag3VO4 and g-C3N4, which promoted the photoreduction of Cr(vi). This work provides some reference significance for deepening the application field of diatomite and treating heavy metal ion wastewater.
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Affiliation(s)
- Zhuhuan Jiang
- Anhui Province International Research Center on Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Province Key Laboratory of Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China +86-0551-63828106 +86-0551-63828151
| | - Haitao Zhu
- Technology Center of Hefei Customs District Hefei 230022 Anhui China
| | - Wanmi Guo
- Anhui Province International Research Center on Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Province Key Laboratory of Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China +86-0551-63828106 +86-0551-63828151
| | - Qifang Ren
- Anhui Province International Research Center on Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Province Key Laboratory of Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China +86-0551-63828106 +86-0551-63828151
| | - Yi Ding
- Anhui Province International Research Center on Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University Hefei 230022 Anhui China
- Anhui Province Key Laboratory of Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China +86-0551-63828106 +86-0551-63828151
| | - Shaohua Chen
- Technology Center of Hefei Customs District Hefei 230022 Anhui China
| | - Jing Chen
- Anhui Province Key Laboratory of Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China +86-0551-63828106 +86-0551-63828151
| | - Xinyu Jia
- Anhui Province Key Laboratory of Advanced Building Materials, Anhui Jianzhu University Hefei 230022 Anhui China +86-0551-63828106 +86-0551-63828151
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Ali M, Ijaz M, Ikram M, Ul-Hamid A, Avais M, Anjum AA. Biogenic Synthesis, Characterization and Antibacterial Potential Evaluation of Copper Oxide Nanoparticles Against Escherichia coli. NANOSCALE RESEARCH LETTERS 2021; 16:148. [PMID: 34542713 PMCID: PMC8452814 DOI: 10.1186/s11671-021-03605-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/12/2021] [Indexed: 05/09/2023]
Abstract
The development of resistance against antibiotics used to treat bacterial infections along with the prevalence of medication residues presents significant public health problems globally. Antibiotic-resistant germs result in infections that are difficult or impossible to treat. Decreasing antibiotic effectiveness calls for rapid development of alternative antimicrobials. In this respect, nanoparticles (NPs) of copper oxide (CuO) manifest a latent and flexible inorganic nanostructure with noteworthy antimicrobial impact. Green synthesis of CuO NPs was performed in the current study, which was then doped with varying amounts of ginger (Zingiber officinale, ZO) and garlic (Allium sativum, AS) extracts. In low and high doses, the synthesized compound was used to measure the antimicrobial effectiveness against pathogenic Escherichia coli. The present research successfully demonstrated a renewable, eco-friendly synthesis technique with natural materials that is equally applicable to other green metal oxide NPs.
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Affiliation(s)
- Mohsin Ali
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
| | - Muhammad Ijaz
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan.
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab, 54000, Pakistan.
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad Avais
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
| | - Aftab Ahmad Anjum
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
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Zhu H, Ren Q, Ding Y, Zhu C, Zong Y, Hu X, Jin Z. One-step synthesis of Ag3VO4/diatomite composite material for efficient degradation of organic dyes under visible light. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Enhanced Photocatalytic Degradation of Ternary Dyes by Copper Sulfide Nanoparticles. NANOMATERIALS 2021; 11:nano11082000. [PMID: 34443834 PMCID: PMC8398049 DOI: 10.3390/nano11082000] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/26/2021] [Accepted: 07/30/2021] [Indexed: 01/25/2023]
Abstract
We report the effect of thermolysis time on the morphological and optical properties of CuS nanoparticles prepared from Cu(II) dithiocarbamate single-source precursor. The as-prepared copper sulfide nanoparticles were used as photocatalysts for the degradation of crystal violet (CV), methylene blue (MB), rhodamine B (RhB), and a ternary mixture of the three dyes (CV/MB/RhB). Powder XRD patterns confirmed the hexagonal covellite phase for the CuS nanoparticles. At the same time, HRTEM images revealed mixed shapes with a particle size of 31.47 nm for CuS1 prepared at 30 min while CuS2 prepared at 1 h consists of mixtures of hexagonal and nanorods shaped particles with an average size of 21.59 nm. Mixed hexagonal and spherically shaped particles with a size of 17.77 nm were obtained for CuS3 prepared at 2 h. The optical bandgaps of the nanoparticles are 3.00 eV for CuS1, 3.26 eV for CuS2 and 3.13 eV for CuS3. The photocatalytic degradation efficiency showed that CuS3 with the smallest particle size is the most efficient photocatalyst and degraded 85% of CV, 100% of MB, and 81% of RhB. The as-prepared CuS showed good stability and recyclability and also degraded ternary dyes mixture (CV/MB/RhB) effectively. The byproducts of the dye degradation were evaluated using ESI-mass spectrometry.
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Chen Y, Su R, Wang F, Zhou W, Gao B, Yue Q, Li Q. In-situ synthesis of CuS@carbon nanocomposites and application in enhanced photo-fenton degradation of 2,4-DCP. CHEMOSPHERE 2021; 270:129295. [PMID: 33401076 DOI: 10.1016/j.chemosphere.2020.129295] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/24/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Novel CuS nanoparticles embedded into carbon nanosheets (CuS@CNs) were prepared in situ by applying wheat straw cellulose/feather protein hydrogel beads as templates and were used to photocatalytically activate H2O2 to degrade 2,4-dichlorphenol (2,4-DCP). The photo-Fenton catalytic properties of the nanocomposite catalysts obtained under different synthetic conditions, including different Cu2+ concentrations, S2- concentrations and calcination temperatures, were evaluated. The results showed that CuS@CNs with 0.1 M Cu2+, 0.1 M S2- at 800 °C presented excellent photo-Fenton degradation performance for 2,4-DCP (25 mg/L) in the presence of H2O2 and could remove 90% of 2,4-DCP in 2.5 h. The water quality parameters (pH, Cl-, HCO3-, H2PO4- and SO42-) exhibited different effects on the photocatalytic degradation process. The catalytic activity of the CuS@CNs used in the cycle could be recovered after thermal regeneration. Radical quenching and electron paramagnetic resonance (EPR) experiments confirmed that ·OH species were main active radicals contributing to the degradation of 2,4-DCP. The photocatalytic mechanism of CuS@CNs was also explored by photoelectrochemical (PEC) measurements and UV-vis diffuse reflectance spectroscopy (DRS). Incorporation of carbon nanosheets could significantly improve the separation of photogenerated charge carriers to stimulate pollutant degradation by CuS. Based on the detected intermediates, the degradation pathway of 2,4-DCP in the CuS@CNs/H2O2 reaction system was also proposed.
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Affiliation(s)
- Yi Chen
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Ruidian Su
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Fudong Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Weizhi Zhou
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Qian Li
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China; Shenzhen Research Institute of Shandong University, Shenzhen, 518057, China.
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Yang Y, Tan H, Cheng B, Fan J, Yu J, Ho W. Near-Infrared-Responsive Photocatalysts. SMALL METHODS 2021; 5:e2001042. [PMID: 34927853 DOI: 10.1002/smtd.202001042] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/22/2020] [Indexed: 06/14/2023]
Abstract
Broadening the absorption of light to the near-infrared (NIR) region is important in photocatalysis to achieve efficient solar-to-fuel conversion. NIR-responsive photocatalysts that can utilize diffusive solar energy are attractive for alleviating the energy crisis and environmental pollution. Over the past few years, considerable progress on the component and structural design of NIR-responsive photocatalysts have been reported. This study aims to systematically summarize recent progress toward the material design and mechanism optimization of NIR-responsive photocatalysts in this area. Depending on the main strategies for harvesting NIR photons, NIR-responsive photocatalysts can be categorized as direct NIR-light photocatalysts, indirect NIR-light photocatalysts, and photothermal photocatalysts. Furthermore, the construction and application of different NIR-responsive photocatalytic systems are summarized. Conclusions and perspectives are presented to further explore the potential of NIR-responsive photocatalysts in this field.
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Affiliation(s)
- Yi Yang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Haiyan Tan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Wingkei Ho
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong, 999077, P. R. China
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Fan Y, Yang R, Zhu R, Zhu Z. CdS decorated artificial leaf BiVO4/InVO4 for photocatalytic hydrogen production and simultaneous degradation of biological hydrogen production wastewater. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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10
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Enhanced degradation of aqueous tetracycline hydrochloride by integrating eggshell-derived CaCO3/CuS nanocomposite with advanced oxidation process. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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11
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Shaheen I, Ahmad KS, Ali D, Almarzouq MHA, Hussain SA, Manohrdas S. Bio Framework-Derived Facile MoO 3-NiO-PdO-Pd Nanomaterial for Detoxification of Organic Pollutants. Int J Nanomedicine 2020; 15:5591-5602. [PMID: 32848389 PMCID: PMC7428366 DOI: 10.2147/ijn.s259550] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 07/08/2020] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION The catalytic behavior of metal oxide nanomaterials for removal of organic pollutants under dark ambient conditions, without any additional stimulant, is of great interest among the scientific community. METHODS In this account, a nanomaterial of ternary metal oxides (MoO3-NiO-PdO-Pd) was synthesized via greener approach and was explored for degradation of methyl orange in water environment in dark ambient conditions in comparison with light conditions. The biochemical species of Abies pindrow were treated with aqueous solution of precursor's salt following sol gel synthesis strategy. We further attuned morphology and chemistry of MoO3-NiO-PdO-Pd by incorporating bioactive compounds of A. pindrow. RESULT AND DISCUSSION The bio-fabricated MoO3-NiO-PdO-Pd revealed outstanding catalytic behavior with 92% degradation of methyl orange within 15 min in the dark at ambient temperature and pressure. Whereas, in the presence of visible light irritation, the catalyst degraded 97% of methyl orange in 15 min. According to the reaction kinetics of degradation, the catalysts illustrated good stability in light (R2=0.93) as well as in dark conditions (R2=0.98). Furthermore, the outstanding reusability and recyclability of the synthesized nanomaterial was observed for four runs of the experiment under dark and light conditions. CONCLUSION Therefore, A. pindrow-synthesized MoO3-NiO-PdO-Pd nanocatalyst demonstrated significant potential for detoxification of organic pollutants for water remediation.
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Affiliation(s)
- Irum Shaheen
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - S A Hussain
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - S Manohrdas
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
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12
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Fang W, Yu L, Xu L. Preparation, characterization and photocatalytic performance of heterostructured CuO-ZnO-loaded composite nanofiber membranes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:631-650. [PMID: 32363130 PMCID: PMC7177000 DOI: 10.3762/bjnano.11.50] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 02/19/2020] [Indexed: 06/11/2023]
Abstract
Inorganic semiconductor oxides loaded on composite nanofibers (CNFs) have been widely applied in environmental monitoring, industry, aviation, and transportation. In this paper, heterostructured CuO-ZnO-loaded CNF membranes (CNFMs) were prepared successfully by a combination of electrospinning, heat treatment, and hydrothermal synthesis. The influence of the synthesis parameters on morphology, structure, and properties of the CNFMs was investigated, and the optimal process parameters were determined. Then, the CNFMs obtained with optimal process parameters were applied for the photocatalytic degradation of methyl orange. It was found that the CNFMs could be reused to degrade methyl orange at least three times, and the degradation rate remained above 90%.
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Affiliation(s)
- Wei Fang
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China
| | - Liang Yu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China
| | - Lan Xu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China
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13
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Chang L, Feng Y, Wang B, Huang X, Yang DP, Lu Y. Dual functional oyster shell-derived Ag/ZnO/CaCO 3 nanocomposites with enhanced catalytic and antibacterial activities for water purification. RSC Adv 2019; 9:41336-41344. [PMID: 35540059 PMCID: PMC9076377 DOI: 10.1039/c9ra08960h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 11/26/2019] [Indexed: 02/03/2023] Open
Abstract
Transforming biological waste into high value-added materials has attracted extensive current research interest in the wastewater treatment field. In this study, oyster shell-derived CaCO3 was used as a solid support to construct efficient Ag/ZnO/CaCO3via Cacumen platycladi extract. As compared to binary Ag/CaCO3 and ZnO/CaCO3, the as-obtained Ag/ZnO/CaCO3 exhibits excellent performance for the reduction of 4-nitrophenol (4-NP) with a reduction rate of 97.6% within 8 minutes. Furthermore, Ag/ZnO/CaCO3 exhibited superior antibacterial activity in inhibiting the growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) with minimum inhibition concentrations (MICs) of 60 μg mL−1 and 30 μg mL−1, respectively. The observation of the superior activity for the reduction of 4-NP and antibacterial test of Ag/ZnO/CaCO3 can be attributed to the synergistic effect of Ag, ZnO and the oyster shell-derived CaCO3. This study provides a strategy in developing highly efficient catalysts for the reduction of 4-NP and antibacterial agents based on the oyster shell-derived CaCO3. Oyster shell was used as an efficient template for synthesis Ag/ZnO/CaCO3 nanocomposites, which showed the enhanced catalytic and antibacterial activities.![]()
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Affiliation(s)
- Lin Chang
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 Fujian Province PR China +86-591-83720599 +86-591-83736429.,Key Laboratory of Stomatology & Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350004 Fujian Province PR China
| | - Yan Feng
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 Fujian Province PR China +86-591-83720599 +86-591-83736429.,Key Laboratory of Stomatology & Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350004 Fujian Province PR China
| | - Bingqing Wang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University Quanzhou 362000 Fujian Province PR China +86-595-22199816 +86-595-22199816
| | - Xiaoyu Huang
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 Fujian Province PR China +86-591-83720599 +86-591-83736429.,Key Laboratory of Stomatology & Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350004 Fujian Province PR China
| | - Da-Peng Yang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University Quanzhou 362000 Fujian Province PR China +86-595-22199816 +86-595-22199816
| | - Youguang Lu
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 Fujian Province PR China +86-591-83720599 +86-591-83736429.,Key Laboratory of Stomatology & Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350004 Fujian Province PR China
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