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Arumugam S, Bavani T, Selvaraj M, Al-Shehri BM, Preeyanghaa M, Jung S, Theerthagiri J, Neppolian B, Murugesan S, Madhavan J, Choi MY. Construction of direct FeMoO 4/g-C 3N 4-2D/2D Z-scheme heterojunction with enhanced photocatalytic treatment of textile wastewater to eliminate the toxic effect in marine environment. Chemosphere 2023; 313:137552. [PMID: 36526136 DOI: 10.1016/j.chemosphere.2022.137552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/29/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
A novel FeMoO4/g-C3N4-2D/2D Z-scheme heterojunction photocatalyst was prepared via wet chemical method. The observed structural morphology of FeMoO4/g-C3N4 reveals the 2D-iron molybdate (FeMoO4) nanoplates compiled with the 2D-graphitic carbon nitride (g-C3N4) nanosheets like structure. The photocatalytic activity of the g-C3N4, FeMoO4, and FeMoO4/g-C3N4 composites were studied via the degradation of Rhodamine B (RhB) as targeted textile dye under visible light irradiation (VLI). The optimal FeMoO4/g-C3N4 (1:3 ratio of g-C3N4 and FeMoO4) composite show an enhanced degradation performance with rate constant value of 0.02226 min-1 and good stability even after three cycles. Thus, the h+ and O2•-are the key radicals in the degradation of RhB under VLI. It is proposed that the FeMoO4/g-C3N4 Z-scheme heterojunction effectively enhances the transfer and separation ability of e-/h+ pairs, by the way increasing the photocatalytic efficiency towards the RhB degradation. Thus, the newly constructed Z-scheme FeMoO4/g-C3N4 heterojunction photocatalyst is a promising material for the remediation of wastewater relevant to elimination of toxic effect in marine environment.
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Affiliation(s)
- Swaminathan Arumugam
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Thirugnanam Bavani
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Badria M Al-Shehri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Mani Preeyanghaa
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Sieon Jung
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Jayaraman Theerthagiri
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Bernaurdshaw Neppolian
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | | | - Jagannathan Madhavan
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India.
| | - Myong Yong Choi
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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Al-Shehri BM, Haddadi T, M. Alasmari E, Ghramh HA, Khan KA, Mohammed MEA, Sager Alotaibi M, El-Niweiri MAA, Hamdi Assiri A, Khayyat MM. Effect of Storage Time and Floral Origin on the Physicochemical Properties of Beeswax and the Possibility of Using It as a Phase Changing Material in the Thermal Storage Energy Technology. Foods 2022; 11:foods11233920. [PMID: 36496728 PMCID: PMC9736214 DOI: 10.3390/foods11233920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/09/2022] Open
Abstract
Beeswax is a natural product that is primarily produced by honey bees of the genus Apis. It has many uses in various kinds of industries, including pharmacy and medicine. This study investigated the effect of storage and floral origin on some physicochemical properties of four beeswax samples. The floral origin of the beeswax samples was determined microscopically and the investigated physical properties were the melting point, color, surface characteristics and thermal behavior. The studied chemical constituents were the acid value, ester value, saponification value and the ester/acid ratio. The FT-IR, SEM, EDX, XRD and TGF techniques were applied to meet the objectives of this study. The physical properties of the beeswax were affected by the storage period and floral origin. The melting point of the beeswax samples significantly increased with the increase in the storage time, from 61.5 ± 2.12 °C for the 3 month sample to 74.5 ± 3.54 °C for the 2 year stored sample (p-value = 0.027). The acid values of the 3 month, 6 month, 1 year and 2 years stored samples were 19.57 ± 0.95, 22.95 ± 1.91, 27 ± 1.91 and 34.42 ± 0.95 mgKOH/g, respectively. The increase in the acid value was significant (p-value = 0.002). The ester values of the studied beeswax samples significantly increased with the increase in storage time as follows: 46.57 ± 2.86 mgKOH/g for the 3 month stored sample, 66.14 ± 3.82 mgKOH/g for the 6 month stored sample, 89.77 ± 0.95 mgKOH/g for the one year stored sample and 97.19 ± 1.91 mgKOH/g for the 2 year stored sample (p-value ≤ 0.001). Similarly, the saponification value and the carbon percentages increased with the increase in storage time. Unlike the results of the chemical components, the oxygen percentage decreased with the increase in storage time as follows: 11.24% (3 month), 10.31% (6 month), 7.97% (one year) and 6.74% (two year). The storage and floral origin of beeswax significantly affected its physicochemical properties in a way that qualify it to act as a phase changing material in the thermal storage energy technology.
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Affiliation(s)
- Badria M. Al-Shehri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
- Unit of Bee Research and Honey Production, King Khalid University, Abha 61413, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Correspondence: (B.M.A.-S.); (K.A.K.)
| | - Thahabh Haddadi
- King Abdul Aziz City for Science and Technology, Riyadh 11442, Saudi Arabia
| | - Eman M. Alasmari
- King Abdul Aziz City for Science and Technology, Riyadh 11442, Saudi Arabia
| | - Hamed A. Ghramh
- Unit of Bee Research and Honey Production, King Khalid University, Abha 61413, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Department of Biology, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Khalid Ali Khan
- Unit of Bee Research and Honey Production, King Khalid University, Abha 61413, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Applied College, King Khalid University, Abha 61413, Saudi Arabia
- Correspondence: (B.M.A.-S.); (K.A.K.)
| | - Mohammed Elimam Ahamed Mohammed
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
- Unit of Bee Research and Honey Production, King Khalid University, Abha 61413, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | | | - Mogbel Ahmed Abdalla El-Niweiri
- Unit of Bee Research and Honey Production, King Khalid University, Abha 61413, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Department of Biology, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
- Department of Bee Research, Environment and Natural Resources & Desertification Research Institute, National Center for Research, Khartoum P.O. Box 6096, Sudan
| | - Abdulrahman Hamdi Assiri
- The Poison Control and Medical Forensic Chemistry Center, Asir Region, King Abdullah Road, Abha 62221, Saudi Arabia
| | - Maha M. Khayyat
- King Abdul Aziz City for Science and Technology, Riyadh 11442, Saudi Arabia
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Al-Zahrani FAM, Al-Shehri BM, El-Shishtawy RM, Awwad NS, Khan KA, Sayed MA, Siddeeg SM. Characterization of Date Seed Powder Derived Porous Graphene Oxide and Its Application as an Environmental Functional Material to Remove Dye from Aqueous Solutions. Materials (Basel) 2022; 15:8136. [PMID: 36431622 PMCID: PMC9693346 DOI: 10.3390/ma15228136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
This study aims to prepare graphene oxide (GO) from raw date seeds (RDSs), considered one of the available agricultural wastes in Saudi Arabia. The preparation method is done by the conversion of date seeds to lignin and then to graphite which is used in a modified Hummer's method to obtain GO. The adsorption of insoluble phenothiazine-derived dye (PTZS) over raw date Seeds (RDSs) as a low-cost adsorbent was investigated in this study. X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR) were used to characterize (RDSs). According to the calculations, Freundlich isotherms and pseudo-second-order accurately predicted the kinetic rate of adsorption. The adsorption ability was 4.889 mg/g, and the removal rate was 93.98% GO-date Seeds mass, 11 mg/L starting dye concentration, at a temperature of 328 K, pH 9, and contact length of 30 min by boosting the PTZS solution's ionic strength. In addition, the computed free energies revealed that the adsorption process was physical. Thermodynamic calculations revealed that dye adsorption onto GO-date seeds was exothermic and spontaneous.
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Affiliation(s)
- Fatimah A. M. Al-Zahrani
- Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Badria M. Al-Shehri
- Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Reda M. El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- National Research Centre, Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, Dokki, Cairo 12622, Egypt
| | - Nasser S. Awwad
- Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Khalid Ali Khan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Applied College, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - M. A. Sayed
- Physics Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Physics Department, Faculty of Science, Al-Azhar University, P.O. Box 71452, Assiut 71524, Egypt
| | - Saifeldin M. Siddeeg
- Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
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Bhardwaj P, Kaur N, Selvaraj M, Ghramh HA, Al-Shehri BM, Singh G, Arya SK, Bhatt K, Ghotekar S, Mani R, Chang SW, Ravindran B, Awasthi MK. Laccase-assisted degradation of emerging recalcitrant compounds - A review. Bioresour Technol 2022; 364:128031. [PMID: 36167178 DOI: 10.1016/j.biortech.2022.128031] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The main objective of this review is to provide up to date, brief, irrefutable, organized data on the conducted experiments on a range of emerging recalcitrant compounds such as Diclofenac (DCF), Chlorophenols (CPs), tetracycline (TCs), Triclosan (TCS), Bisphenol A (BPA) and Carbamazepine (CBZ). These compounds were selected from the categories of pharmaceutical contaminants (PCs), endocrine disruptors (EDs) and personal care products (PCPs) on the basis of their toxicity and concentration retained in the environment. In this context, detailed mechanism of laccase mediated degradation has been conversed that laccase assisted degradation occurs by one electron oxidation involving redox potential as underlying element of the process. Further, converging towards biotechnology, laccase immobilization increased removal efficiency, storage and reusability through various experimentally conducted studies. Laccase is being considered noteworthy as mediators facilitate laccase in oxidation of non-phenolic compounds and thereby increasing its substrate range which is being discussed in further in the review. The laccase assisted degradation mechanism of each compound has been elucidated but further studies to undercover proper degradation mechanisms needs to be performed.
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Affiliation(s)
- Priyanka Bhardwaj
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road3# Shaanxi, Yangling 712100, China; Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Naviljyot Kaur
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Hamed A Ghramh
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Badria M Al-Shehri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Shailendra Kumar Arya
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Kalpana Bhatt
- Department of Botany and Microbiology, Gurukul Kangri University, Haridwar 249404, Uttarakhand, India
| | - Suresh Ghotekar
- Department of Chemistry, Smt. Devkiba Mohansinhji Chauhan College of Commerce and Science, University of Mumbai, Silvassa 396 230, Dadra and Nagar Haveli (UT), India
| | - Ravi Mani
- Centre for Ocean Research, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Soon Woong Chang
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea; Department of Medical Biotechnology and Integrative Physiology, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai 602 105, Tamil Nadu, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road3# Shaanxi, Yangling 712100, China.
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Gayathri K, Vinothkumar K, Teja Y, Al-Shehri BM, Selvaraj M, Sakar M, Balakrishna RG. Ligand-mediated band structure engineering and physiochemical properties of UiO-66 (Zr) metal-organic frameworks (MOFs) for solar-driven degradation of dye molecules. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Kumar V, Sharma N, Umesh M, Selvaraj M, Al-Shehri BM, Chakraborty P, Duhan L, Sharma S, Pasrija R, Awasthi MK, Lakkaboyana SR, Andler R, Bhatnagar A, Maitra SS. Emerging challenges for the agro-industrial food waste utilization: A review on food waste biorefinery. Bioresour Technol 2022; 362:127790. [PMID: 35973569 DOI: 10.1016/j.biortech.2022.127790] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 05/27/2023]
Abstract
Modernization and industrialization has undoubtedly revolutionized the food and agro-industrial sector leading to the drastic increase in their productivity and marketing thereby accelerating the amount of agro-industrial food waste generated. In the past few decades the potential of these agro-industrial food waste to serve as bio refineries for the extraction of commercially viable products like organic acids, biochemical and biofuels was largely discussed and explored over the conventional method of disposing in landfills. The sustainable development of such strategies largely depends on understanding the techno economic challenges and planning for future strategies to overcome these hurdles. This review work presents a comprehensive outlook on the complex nature of agro-industrial food waste and pretreatment methods for their valorization into commercially viable products along with the challenges in the commercialization of food waste bio refineries that need critical attention to popularize the concept of circular bio economy.
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Affiliation(s)
- Vinay Kumar
- Department of Community Medicine, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Chennai, India.
| | - Neha Sharma
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Mridul Umesh
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru 560029, Karnataka, India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Badria M Al-Shehri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Pritha Chakraborty
- School of Allied Healthcare and Sciences, Jain (Deemed To Be) University, Bengaluru, Karnataka, India
| | - Lucky Duhan
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, India
| | - Shivali Sharma
- Department of Chemistry, College of Basic Sciences and Humanities, Punjab Agricultural University, Punjab, India
| | - Ritu Pasrija
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Siva Ramakrishna Lakkaboyana
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India
| | - Rodrigo Andler
- Escuela de Ingeniería en Biotecnología, Centro de Biotecnología de los Recursos Naturales (Cenbio), Universidad Católica del Maule
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130, Mikkeli, Finland
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Bawazeer TM, Alsoufi MS, Shkir M, Al-Shehri BM, Hamdy MS. Excellent improvement in photocatalytic nature of ZnO nanoparticles via Fe doping content. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108668] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Hamdy MS, Al-Shehri BM, Al-Namshah KS, Shkir M. Synthesis, characterization, and photoluminescence property of Nd-TUD-1. LUMINESCENCE 2020; 36:192-199. [PMID: 32803842 DOI: 10.1002/bio.3934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/29/2020] [Accepted: 08/12/2020] [Indexed: 11/08/2022]
Abstract
Here, five different samples of neodymium (Nd) incorporated 3D-mesoporous siliceous materials were fabricated using a single-step hydrothermal technique. Typically, all samples were subjected to several qualitative elemental and quantitative analyses such as X-ray diffraction, N2 -adsorption/desorption, scanning electron microscopy, energy dispersive X-ray, mapping, high resolution transmission electron microscopy, diffuse reflectance ultraviolet-visible, and Raman spectroscopy. The characterization results showed that at small loading of Nd (i.e. Si/Nd < 20), only isolated centres of trivalent neodymium ions were tetrahedrally coordinated in the TUD-1 matrix. However, with increasing neodymium loading, additional nanoparticles of neodymium oxide with size 10-20 nm were embedded into silica host pores. Detailed photoluminescence (PL) analysis of all samples was carried out by recording the emission profiles at two diverse excitation wavelengths, 333 and 343 nm, to understand the effect of the Nd3+ environment on the PL emission spectra with special attention to the area between 400 and 600 nm. Most importantly, different peaks of the emission spectrum of each sample exhibited a distinct shape based on the Nd3+ environment. This performance was superior evidence that PL can be applied as a simple and efficient characterization tool to understand the nature of Nd3+ ion linkage with a silica matrix.
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Affiliation(s)
- Mohamed S Hamdy
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Badria M Al-Shehri
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Khadijah S Al-Namshah
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Mohd Shkir
- Advanced Functional Materials and Optoelectronics Laboratory (AFMOL), Department of Physics, College of Science, King Khalid University, Abha, Saudi Arabia
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Al-Shehri BM, Shkir M, Khder AS, Kaushik A, Hamdy MS. Noble Metal Nanoparticles Incorporated Siliceous TUD-1 Mesoporous Nano-Catalyst for Low-Temperature Oxidation of Carbon Monoxide. Nanomaterials (Basel) 2020; 10:nano10061067. [PMID: 32486262 PMCID: PMC7352551 DOI: 10.3390/nano10061067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 11/16/2022]
Abstract
This report, for the first time, demonstrated the low-temperature oxidation of carbon monoxide (CO) using nano-catalysts consisting of noble metal nanoparticles incorporated in TUD-1 mesoporous silica nano-structures synthesized via a one-pot surfactant-free sol–gel synthesis methodology. Herein, we investigated a nano-catalyst, represented as M-TUD-1 (M = Rh, Pd, Pt and Au), which was prepared using a constant Si/M ratio of 100. The outcome of the analytical studies confirmed the formation of a nano-catalyst ranging from 5 to 10 nm wherein noble metal nanoparticles were distributed uniformly onto the mesopores of TUD-1. The catalytic performance of M-TUD-1 catalysts was examined in the environmentally impacted CO oxidation reaction to CO2. The catalytic performance of Au-TUD-1 benchmarked other M-TUD-1 catalysts and a total conversion of CO was obtained at 303 K. The activity of the other nano-catalysts was obtained as Pt-TUD-1 > Pd-TUD-1 > Rh-TUD-1, with a total CO conversion at temperatures of 308, 328 and 348 K, respectively. The Au-TUD-1 exhibited a high stability and reusability as indicated by the observed high activity after ten continuous runs without any treatment. The outcomes of this research suggested that M-TUD-1 are promising nano-catalysts for the removal of the toxic CO gas and can also potentially be useful to protect the environment where a long-life time, cost-effectiveness and industrial scaling-up are the key approaches.
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Affiliation(s)
- Badria M. Al-Shehri
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Chemistry Department, College of Science, Umm Al-Qura University, Makkah 21421, Saudi Arabia;
| | - Mohd Shkir
- Advanced Functional Materials and Optoelectronics Laboratory (AFMOL), Department of Physics, College of Science, King Khalid University, Abha 61413, Saudi Arabia;
| | - A. S. Khder
- Chemistry Department, College of Science, Umm Al-Qura University, Makkah 21421, Saudi Arabia;
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Natural Sciences, Division of Sciences, Art and Mathematics, Florida Polytechnic University, Lakeland, FL 33805, USA
- Correspondence: (A.K.); (M.S.H.); Tel.: +966-1724-18892 (M.S.H.)
| | - Mohamed S. Hamdy
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Correspondence: (A.K.); (M.S.H.); Tel.: +966-1724-18892 (M.S.H.)
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Shkir M, Al-Shehri BM, Pachamuthu M, Khan A, Chandekar KV, AlFaify S, Hamdy MS. A remarkable improvement in photocatalytic activity of ZnO nanoparticles through Sr doping synthesized by one pot flash combustion technique for water treatments. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124340] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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