1
|
Gaioto CC, Pinto JC, Schmal M. Effects of Metal Promoters (M = Fe, Co, and Cu) in Pt/M x Zr y O z Catalysts and Influence of CO 2 and H 2O on the CO Oxidation Activity (PROX): Analysis of Surface Properties After Reaction. ACS OMEGA 2024; 9:25715-25729. [PMID: 38911746 PMCID: PMC11190919 DOI: 10.1021/acsomega.3c09039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 05/18/2024] [Accepted: 05/22/2024] [Indexed: 06/25/2024]
Abstract
In the present paper, the effects of metal promoters (M = Fe, Co, and Cu) in Pt/M x Zr y O z catalysts and the influence of CO2 and H2O on the CO oxidation activity (PROX) were investigated. To do that, characterizations of catalyst structures and surfaces were performed and reported here. The catalyst Pt/Fe x Zr y O z (PFeZ) was the most active at low temperatures among the analyzed ones. The addition of platinum caused strong interaction with the mixed oxide, affecting the structure and the surface composition, blocking basic sites, and thus preventing catalyst deactivation. Particularly, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) results evidenced the formation of carboxylate and carbonate species. Besides, the addition of CO2 and H2O in the gas feed stream affected the observed CO oxidation results, showing that CO2 competes with O2 on metallic sites. Moreover, DRIFTS and temperature-programmed desorption (TPD) analyses suggested the occurrence of OH- oxidation by CO, leading to the formation of highly reactive compounds that can be easily oxidized.
Collapse
Affiliation(s)
- Carolina C Gaioto
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro 21941-972 RJ Brazil
| | - José Carlos Pinto
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro 21941-972 RJ Brazil
| | - Martin Schmal
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro 21941-972 RJ Brazil
| |
Collapse
|
2
|
Krishna PG, Chandra Mishra P, Naika MM, Gadewar M, Ananthaswamy PP, Rao S, Boselin Prabhu SR, Yatish KV, Nagendra HG, Moustafa M, Al-Shehri M, Jha SK, Lal B, Stephen Santhakumari SM. Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review. Front Chem 2022; 10:917831. [PMID: 36118313 PMCID: PMC9479337 DOI: 10.3389/fchem.2022.917831] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/06/2022] [Indexed: 12/29/2022] Open
Abstract
Nanotechnology is a fast-expanding area with a wide range of applications in science, engineering, health, pharmacy, and other fields. Among many techniques that are employed toward the production of nanoparticles, synthesis using green technologies is the simplest and environment friendly. Nanoparticles produced from plant extracts have become a very popular subject of study in recent decades due to their diverse advantages such as low-cost synthesis, product stability, and ecofriendly protocols. These merits have prompted the development of nanoparticles from a variety of sources, including bacteria, fungi, algae, proteins, enzymes, etc., allowing for large-scale production with minimal contamination. However, nanoparticles obtained from plant extracts and phytochemicals exhibit greater reduction and stabilization and hence have proven the diversity of properties, like catalyst/photocatalyst, magnetic, antibacterial, cytotoxicity, circulating tumor deoxy ribo nucleic acid (CT-DNA) binding, gas sensing, etc. In the current scenario, nanoparticles can also play a critical role in cleaning wastewater and making it viable for a variety of operations. Nano-sized photocatalysts have a great scope toward the removal of large pollutants like organic dyes, heavy metals, and pesticides in an eco-friendly and sustainable manner from industrial effluents. Thus, in this review article, we discuss the synthesis of several metal nanoparticles using diverse plant extracts, as well as their characterization via techniques like UV–vis (ultraviolet–visible), XRD (X-ray diffraction), SEM (scanning electron microscopy), TEM (transmission electron microscopy), FTIR (Fourier transform infrared spectroscopy), etc., and catalytic activity on various hazardous systems.
Collapse
Affiliation(s)
- Prashanth Gopala Krishna
- Department of Chemistry, Sir M. Visvesvaraya Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
- *Correspondence: Prashanth Gopala Krishna, , ; Saurabh Kumar Jha,
| | - Prabhu Chandra Mishra
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, India
| | - Mutthuraju Mahadev Naika
- Department of Chemistry, Sai Vidya Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
| | - Manoj Gadewar
- Department of Pharmacology, School of Medical and Allied Sciences, KR Mangalam University, Gurgaon, India
| | | | - Srilatha Rao
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
| | | | | | - Holenarasipura Gundurao Nagendra
- Department of Bio Technology, Sir M. Visvesvaraya Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
| | - Mahmoud Moustafa
- Department of Biology, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, South Valley University, Qena, Egypt
| | - Mohammed Al-Shehri
- Department of Biology, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, India
- Department of Biotechnology, School of Applied and Life Sciences (SALS), Uttaranchal University, Dehradun, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, India
- *Correspondence: Prashanth Gopala Krishna, , ; Saurabh Kumar Jha,
| | - Bharat Lal
- Department of Pharmaceutics, School of Medical and Allied Sciences, KR Mangalam University, Gurgaon, India
| | | |
Collapse
|
3
|
Karakaya C, White E, Jennings D, Kidder M, Deutschmann O, Kee RJ. CO2 hydrogenation to hydrocarbons over Fe/BZY catalysts. ChemCatChem 2022. [DOI: 10.1002/cctc.202200802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Canan Karakaya
- Oak Ridge National Laboratory Manufacturing Science Division 1 Bettel Valley Rd 37831 Oak Ridge UNITED STATES
| | - Erick White
- NREL: National Renewable Energy Laboratory National Bioenergy Center UNITED STATES
| | - Dylan Jennings
- Colorado School of Mines Metallurgical and Materials Engineering, UNITED STATES
| | - Michelle Kidder
- Oak Ridge National Laboratory Manufacturing Science Division UNITED STATES
| | - Olaf Deutschmann
- Karlsruhe Institute of Technology: Karlsruher Institut fur Technologie Technical Chemistry UNITED STATES
| | - Robert J. Kee
- Colorado School of Mines Mechanical Engineering UNITED STATES
| |
Collapse
|
4
|
Reddy CV, Reddy IN, Ravindranadh K, Reddy KR, Shetti NP, Kim D, Shim J, Aminabhavi TM. Copper-doped ZrO 2 nanoparticles as high-performance catalysts for efficient removal of toxic organic pollutants and stable solar water oxidation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 260:110088. [PMID: 31941628 DOI: 10.1016/j.jenvman.2020.110088] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 01/03/2020] [Accepted: 01/03/2020] [Indexed: 05/06/2023]
Abstract
Doping effect on the photoelectrochemical (PEC) water splitting efficiency and photocatalytic activities of ZrO2 under visible light are reported. The XRD analysis revealed that pure, 0.1 and 0.3 mol% doped samples showed mixed crystal phases (tetragonal and monoclinic) and 0.5 mol% doped sample showed a pure tetragonal phase. Under visible light, 90% of methyl orange dye degradation was achieved with in 100 min. Moreover, the optimal doped sample showed a significant degradation rate constant over other samples. The doped photoelectrodes display a better PEC water oxidation performance over pure photoelectrode. Furthermore, the optimal doped (0.3 mol %) electrode shows 0.644 mAcm-2 photocurrent density, corresponding to an approximate 50-fold enhancement over pure electrode (0.013 mAcm-2). The optimized doped sample achieved 98% degradation of methyl orange within 100 min of light irradiation. The superior PEC water oxidation and photocatalytic activity of optimal doped samples under visible light are credited to suitable doping content, crystalline size, greater surface area, suitable bandgap, a lower charge carrying resistance, surface properties and the ability for decreasing the charge carrier's recombination rate.
Collapse
Affiliation(s)
- Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea
| | - I Neelakanta Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea
| | - K Ravindranadh
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Nagaraj P Shetti
- Center for Electrochemical Science & Materials, Department of Chemistry, K.L.E. Institute of Technology, Hubballi, 580 030, India
| | - D Kim
- System Technology Group, Korea Institute of Industrial Technology (KITECH) Gyeongbuk-do, 38822, South Korea.
| | - J Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea.
| | - Tejraj M Aminabhavi
- Department of Pharmaceutical Engineering, SET's College of Pharmacy, Dharwad, Karnataka, 580 002, India.
| |
Collapse
|
8
|
Basahel SN, Ali TT, Mokhtar M, Narasimharao K. Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange. NANOSCALE RESEARCH LETTERS 2015; 10:73. [PMID: 25852369 PMCID: PMC4385125 DOI: 10.1186/s11671-015-0780-z] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 01/22/2015] [Indexed: 05/19/2023]
Abstract
Nanosized ZrO2 powders with near pure monoclinic, tetragonal, and cubic structures synthesized by various methods were used as catalysts for photocatalytic degradation of methyl orange. The structural and textural properties of the samples were analyzed by X-ray diffraction, Raman spectroscopy, TEM, UV-vis, X-ray photoelectron spectroscopy (XPS), and N2 adsorption measurements. The performance of synthesized ZrO2 nanoparticles in the photocatalytic degradation of methyl orange under UV light irradiation was evaluated. The photocatalytic activity of the pure monoclinic ZrO2 sample is higher than that of the tetragonal and cubic ZrO2 samples under optimum identical conditions. The characterization results revealed that monoclinic ZrO2 nanoparticles possessed high crystallinity and mesopores with diameter of 100 Å. The higher activity of the monoclinic ZrO2 sample for the photocatalytic degradation of methyl orange can be attributed to the combining effects of factors including the presence of small amount of oxygen-deficient zirconium oxide phase, high crystallinity, large pores, and high density of surface hydroxyl groups.
Collapse
Affiliation(s)
- Sulaiman N Basahel
- />Department of Chemistry, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
| | - Tarek T Ali
- />Department of Chemistry, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
- />Chemistry Department, Faculty of Science, Sohag University, P.O. Box 82524, Sohag, 82524 Egypt
| | - Mohamed Mokhtar
- />Department of Chemistry, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
- />Physical Chemistry Department, National Research Centre, El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Katabathini Narasimharao
- />Department of Chemistry, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
| |
Collapse
|