1
|
Birke V, Singh R, Prang O. Degradation of pharmaceuticals and other emerging pollutants employing bi-metal catalysts/magnesium and/or (green) hydrogen in aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35992-36012. [PMID: 38744765 PMCID: PMC11136818 DOI: 10.1007/s11356-024-32777-1] [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: 11/17/2023] [Accepted: 03/01/2024] [Indexed: 05/16/2024]
Abstract
Contaminations by pharmaceuticals, personal care products, and other emerging pollutants in water resources have become a seriously burgeoning issue of global concern in the first third of the twenty-first century. As societal reliance on pharmaceuticals continues to escalate, the inadvertent introduction of these substances into water reservoirs poses a consequential environmental threat. Therefore, the aim of this study was to investigate reductive degradation, particularly, catalytic hydrogenation regarding model pollutants such as diclofenac (DCF), ibuprofen (IBP), 17α-ethinylestradiol (EE2), or bisphenol-A (BPA), respectively, in aqueous solutions at lab scale. Iron bimetals (zero valent iron, ZVI, and copper, Cu, or nickel, Ni) as well as zero valent magnesium (Mg, ZVM) in combination with rhodium, Rh, or palladium, Pd, as hydrogenation catalysts (HK), were investigated. Studies were executed through various short-term batch experiments, with multiple sample collections, over a total range of 120 min. The results indicated that DCF was attenuated at over 90 % when exposed to Fe-Cu or a Fe-Ni bimetal (applied as a single model pollutant). However, when DCF was part of a mixture alongside with IBP, EE2, and BPA, the attenuation efficacy decreased to 79 % with Fe-Cu and 23 % with Fe-Ni. Conversely, both IBP and BPA exhibit notably low attenuation levels with both bimetals, less than 50 %, both deployed as single substances or in mixtures. No reaction (degradation) products could be identified employing LC-MS, but sometimes a release of the parent pollutant when applying an acetic acid buffer could be noted to a certain extent, suggesting adsorption processes on corrosion products such as iron hydroxide and/or oxides. Surprisingly, Mg in combination with Rh (Rh-HK) or Pd (Pd-HK) showed a significantly rapid decrease in the concentrations of DCF, EE2, and BPA, in part up to approximately 100 %, that is, within a few minutes only in part due to hydrogenation degradation reactions (related reaction products could actually be identified by LC-MS; adsorption processes were not observed here). Moreover, kinetic modeling of the DCF degradation with Mg-Rh-HK was conducted at different temperatures (15 °C, 20 °C, 25 °C, 35 °C) and varied initial concentrations (2.5 mg/L, 5.0 mg/L, 7.5 mg/L, 10.0 mg/L). The outcomes prove that the degradation of DCF at the Rh-HK's surface followed a modified first-order kinetics, most probably by catalytic hydrodehalogenation and subsequent hydrogenation of the aromatic moieties (molecular hydrogen was provided by the corrosion of Mg). From the determined reaction rate constants at four different temperatures, the activation energy was estimated to be 59.6 kJ/mol by means of the Arrhenius equation what is in good agreement with similar results reported in the literature. This coupled hydrodehalogenation and hydrogenation approach may be upscaled into a new promising technical process for comprehensively removing such pharmaceuticals and similar pollutants in sewage plants in a single step, furthermore, even in combination with adsorption by activated carbon and/or ozonation which have already been established at some sewage plants in Switzerland and Germany recently.
Collapse
Affiliation(s)
- Volker Birke
- Hochschule Wismar - University of Applied Sciences, Technology, Business and Design, Faculty of Engineering Science, Department of Mechanical, Process and Environmental Engineering, Philipp-Müller-Str. 14, 23966, Wismar, Germany
| | - Rahul Singh
- Hochschule Wismar - University of Applied Sciences, Technology, Business and Design, Faculty of Engineering Science, Department of Mechanical, Process and Environmental Engineering, Philipp-Müller-Str. 14, 23966, Wismar, Germany.
| | - Oliver Prang
- Hochschule Wismar - University of Applied Sciences, Technology, Business and Design, Faculty of Engineering Science, Department of Mechanical, Process and Environmental Engineering, Philipp-Müller-Str. 14, 23966, Wismar, Germany
| |
Collapse
|
2
|
Boparai HK, El-Sharnouby O, O'Carroll DM. Catalytic dechlorination of 1,2-DCA in nano Cu 0-borohydride system: effects of Cu 0/Cu n+ ratio, surface poisoning, and regeneration of Cu 0 sites. Sci Rep 2023; 13:11883. [PMID: 37482593 PMCID: PMC10363550 DOI: 10.1038/s41598-023-38678-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/12/2023] [Indexed: 07/25/2023] Open
Abstract
Aqueous-phase catalyzed reduction of organic contaminants via zerovalent copper nanoparticles (nCu0), coupled with borohydride (hydrogen donor), has shown promising results. So far, the research on nCu0 as a remedial treatment has focused mainly on contaminant removal efficiencies and degradation mechanisms. Our study has examined the effects of Cu0/Cun+ ratio, surface poisoning (presence of chloride, sulfides, humic acid (HA)), and regeneration of Cu0 sites on catalytic dechlorination of aqueous-phase 1,2-dichloroethane (1,2-DCA) via nCu0-borohydride. Scanning electron microscopy confirmed the nano size and quasi-spherical shape of nCu0 particles. X-ray diffraction confirmed the presence of Cu0 and Cu2O and x-ray photoelectron spectroscopy also provided the Cu0/Cun+ ratios. Reactivity experiments showed that nCu0 was incapable of utilizing H2 from borohydride left over during nCu0 synthesis and, hence, additional borohydride was essential for 1,2-DCA dechlorination. Washing the nCu0 particles improved their Cu0/Cun+ ratio (1.27) and 92% 1,2-DCA was removed in 7 h with kobs = 0.345 h-1 as compared to only 44% by unwashed nCu0 (0.158 h-1) with Cu0/Cun+ ratio of 0.59, in the presence of borohydride. The presence of chloride (1000-2000 mg L-1), sulfides (0.4-4 mg L-1), and HA (10-30 mg L-1) suppressed 1,2-DCA dechlorination; which was improved by additional borohydride probably via regeneration of Cu0 sites. Coating the particles decreased their catalytic dechlorination efficiency. 85-90% of the removed 1,2-DCA was recovered as chloride. Chloroethane and ethane were main dechlorination products indicating hydrogenolysis as the major pathway. Our results imply that synthesis parameters and groundwater solutes control nCu0 catalytic activity by altering its physico-chemical properties. Thus, these factors should be considered to develop an efficient remedial design for practical applications of nCu0-borohydride.
Collapse
Affiliation(s)
- Hardiljeet Kaur Boparai
- Department of Civil and Environmental Engineering, Western University, 1151 Richmond Rd, London, ON, N6A 5B8, Canada
- Department of Civil and Mineral Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Omneya El-Sharnouby
- Department of Civil and Environmental Engineering, Western University, 1151 Richmond Rd, London, ON, N6A 5B8, Canada
| | - Denis M O'Carroll
- School of Civil and Environmental Engineering, Water Research Laboratory, University of New South Wales, Sydney, NSW, 2052, Australia.
| |
Collapse
|
3
|
Efficient electrochemical reduction of nitrate by bimetallic Cu-Fe phosphide derived from Prussian blue analogue. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
4
|
Wang W, Zhang Y, Xu L, Pei Y, Niu J. Efficient hydrogenation of p-chlorophenol and Cr(VI) driven by hydrogen rich balls over Pd/C catalysts. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129434. [PMID: 35897191 DOI: 10.1016/j.jhazmat.2022.129434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/05/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
Catalytic hydrogenation can selectively destabilize and detoxify specific contaminants in water. Herein, to explore safer and more efficient hydrogen sources, hydrogen rich balls (HRBs) were researched and applied for hydrogenating p-chlorophenol and Cr(VI) over Pd/C catalyst. The results showed that HRBs can realize the sustained release of H2 by replacing the hydrogen in water, and generate the refined (micro/nano-sized) H2 bubble, which effectively improves the adsorption and activation effectively of H2 molecules on Pd/C catalyst, and the hydrogen atoms utilization efficiency during p-chlorophenol hydrodechlorination is as high as 3.5 %. Continuous flow experiments showed that rapid removal of p-chlorophenol with different concentrations could be achieved by adjusting the flow rate. Moreover, the high-toxic Cr(VI) was successfully reduced to the low-toxic Cr(III) in an appropriate pH range. This research is of far-reaching significance for realizing the detoxification of environmental pollutants and promoting the development of hydrogen economy.
Collapse
Affiliation(s)
- Weilai Wang
- Ministry of Education Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yuanzheng Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Lei Xu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Yuansheng Pei
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Junfeng Niu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| |
Collapse
|
5
|
Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
Collapse
Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
| |
Collapse
|
6
|
Mu D, Li Z, Yu S, Liu S. Wastewater treatment via hydro-de-heteroatoms using hydrogen donors. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
7
|
Xie Q, Lei C, Chen W, Huang B. Mesoporous ferrihydrite-supported Pd nanoparticles for enhanced catalytic dehalogenation of chlorinated environmental pollutant. J Colloid Interface Sci 2022; 608:2907-2920. [PMID: 34839921 DOI: 10.1016/j.jcis.2021.11.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/21/2021] [Accepted: 11/06/2021] [Indexed: 01/11/2023]
Abstract
Organic chlorides are a group of ubiquitous environmental pollutants that have attracted wide attention because of their carcinogenetic effect on human. Catalytic hydrodechlorination represents one of the most promising methods for the removal of these contaminants, but it suffers from drawbacks such as catalytic inefficiency and/or instability, and the danger of using H2 as hydrogen source. The relationship between the catalyst structure and its dehalogenation activity has not been completely understood. By combining the advantages of Pd nanocatalyst and mesoporous ferrihydrite (Fh) with its distinctive structure, here we present a new composite material with Pd nanoparticles (NPs) supported onto the Fh (Pd/Fh), which has excellent catalytic dehalogenation performance with a rapid, complete dechlorination of chlorophenol (turnover frequency 25.2 min-1) and the ability to perform well over a wide range of pH and temperature. The superior catalytic property of Pd/Fh can be attributed to the three unique functions of Fh, including: 1) having abundant hydroxyl groups that provide interaction sites with metals for incorporating highly dispersed small Pd NPs; 2) facilitating the fast adsorption of chlorophenol onto the catalyst surface via hydrogen bonding and importantly, 3) working as an electron mediator to greatly enhance the electron transfer from iron or chemicals (e.g., NaBH4) to the catalyst, thereby achieving a synergistic effect between Pd catalyst and support, and an enhanced dechlorination activity. In essence, this work presents a promising catalyst for the efficient dehalogenation of chlorinated environmental pollutants and provides an insight into the relationship between catalyst structure and dehalogenation activity.
Collapse
Affiliation(s)
- Qianqian Xie
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Chao Lei
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, PR China
| | - Wenqian Chen
- Department of Pharmacy, National University of Singapore, S9, 4 Science Drive 2, Singapore 117544, Singapore
| | - Binbin Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| |
Collapse
|
8
|
Mironenko RM, Likholobov VA, Belskaya OB. Nanoglobular carbon and palladium - carbon catalysts for liquid-phase hydrogenation of organic compounds. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
9
|
Sanni SE, Philemon O, Okoro EE, Oni BA, Idowu TA, Adegbite O. Heterogeneous catalytic conversion of 4-chlorophenol via atomic hydrogen substitution induced by size-controlled polydisperse nanocobalt. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
10
|
Cerrillo JL, Lopes CW, Rey F, Palomares AE. The Influence of the Support Nature and the Metal Precursor in the Activity of Pd‐based Catalysts for the Bromate Reduction Reaction. ChemCatChem 2021. [DOI: 10.1002/cctc.202001797] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jose L. Cerrillo
- Instituto de Tecnología Química (CSIC-Universitat Politècnica de València) Camino Vera s.n. Valencia 46022 Spain
| | - Christian W. Lopes
- Instituto de Tecnología Química (CSIC-Universitat Politècnica de València) Camino Vera s.n. Valencia 46022 Spain
- Institute of Chemistry Universidade Federal do Rio Grande do Sul Avenida Bento Gonçalves, 9500 91509-900 Porto Alegre Brazil
| | - Fernando Rey
- Instituto de Tecnología Química (CSIC-Universitat Politècnica de València) Camino Vera s.n. Valencia 46022 Spain
| | - Antonio E. Palomares
- Instituto de Tecnología Química (CSIC-Universitat Politècnica de València) Camino Vera s.n. Valencia 46022 Spain
| |
Collapse
|
11
|
Li Y, Ma X, Ma J, Zhang Z, Niu Z, Chen F. Fabrication of Pore-Selective Metal-Nanoparticle-Functionalized Honeycomb Films via the Breath Figure Accompanied by In Situ Reduction. Polymers (Basel) 2021; 13:316. [PMID: 33498230 PMCID: PMC7863921 DOI: 10.3390/polym13030316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/27/2020] [Accepted: 12/30/2020] [Indexed: 01/27/2023] Open
Abstract
Honeycomb films pore-filled with metal (Au, Ag, and Cu) nanoparticles were successfully prepared by combining the breath figure method and an in situ reduction reaction. First, a polyhedral oligomeric silsesquioxane (POSS)-based star-shaped polymer solution containing metal salt was cast under humid conditions for the formation of honeycomb films pore-filled with metal salt through the breath figure method. The morphology of the honeycomb films was mainly affected by the polymer molecular structure and the metal salt. Interestingly, the promoting effect of the metal salt in the breath figure process was also observed. Then, honeycomb films pore-filled with metal nanoparticles were obtained by in situ reduction of the honeycomb films pore-filled with metal salt using NaBH4. Notably, the metal nanoparticles can be selectively functionalized in the pores or on the surface of the honeycomb films by controlling the concentration of the NaBH4. Metal-nanoparticle-functionalized honeycomb films can prospectively be used in catalysis, flexible electrodes, surface-enhanced Raman spectroscopy (SERS), and wettability patterned surfaces.
Collapse
Affiliation(s)
| | - Xiaoyan Ma
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710129, China; (Y.L.); (J.M.); (Z.Z.); (Z.N.); (F.C.)
| | | | | | | | | |
Collapse
|
12
|
Abstract
Chloromethanes are a group of volatile organic compounds that are harmful to the environment and human health. Abundant studies have verified that hydrodechlorination might be an effective treatment to remove these chlorinated pollutants. The most outstanding advantages of this technique are the moderate operating conditions used and the possibility of obtaining less hazardous valuable products. This review presents a global analysis of experimental and theoretical studies regarding the hydrodechlorination of chloromethanes. The catalysts used and their synthesis methods are summarized. Their physicochemical properties are analyzed in order to deeply understand their influence on the catalytic performance. Moreover, the main causes of the catalyst deactivation are explained, and prevention and regeneration methods are suggested. The reaction systems used and the effect of the operating conditions on the catalytic activity are also analyzed. Besides, the mechanisms and kinetics of the process at the atomic level are reviewed. Finally, a new perspective for the upgrading of chloromethanes, via hydrodechlorination, to valuable hydrocarbons for industry, such as light olefins, is discussed.
Collapse
|
13
|
The Effect of Shape-Controlled Pt and Pd Nanoparticles on Selective Catalytic Hydrodechlorination of Trichloroethylene. Catalysts 2020. [DOI: 10.3390/catal10111314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Tailoring the shape of nanoscale materials enables obtaining morphology-controlled surfaces exhibiting specific interactions with reactants during catalytic reactions. The specifics of nanoparticle surfaces control the catalytic performance, i.e., activity and selectivity. In this study, shape-controlled Platinum (Pt) and Palladium (Pd) nanoparticles with distinct morphology were produced, i.e., cubes and cuboctahedra for Pt and spheres and polyhedra/multiple-twins for Pd, with (100), (111 + 100), curved/stepped and (111) facets, respectively. These particles with well-tuned surfaces were subsequently deposited on a Zirconium oxide (ZrO2) support. The morphological characteristics of the particles were determined by high resolution transmission electron microscopy (HR-TEM) and X-ray diffraction (XRD), while their adsorption properties were investigated by Fourier transform infrared spectroscopy (FTIR) of CO adsorbed at room temperature. The effect of the nanoparticle shape and surface structure on the catalytic performance in hydrodechlorination (HDCl) of trichloroethylene (TCE) was examined. The results show that nanoparticles with different surface orientations can be employed to affect selectivity, with polyhedral and multiply-twinned Pd exhibiting the best ethylene selectivity.
Collapse
|
14
|
Nieto-Sandoval J, Ortiz D, Munoz M, de Pedro ZM, Casas JA. On the deactivation and regeneration of Pd/Al2O3 catalyst for aqueous-phase hydrodechlorination of diluted chlorpromazine solution. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Effect of unimodality and bimodality of Pd nanoparticles on the catalytic activity of Pd/SiO2 in the removal of diclofenac from water. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
16
|
Nazari B, Mousavi S, Keshavarz MH, Bordbar A. Fabrication of High‐Performance Palladium Supported on Activated Charcoal Nanocatalyst for Synthesis of Morphine Opioid Analgesics. ChemistrySelect 2020. [DOI: 10.1002/slct.202000337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Behzad Nazari
- Department of ChemistryMalek-ashtar University of Technology Shahin shahr 83145/115 Iran
| | - Sajjad Mousavi
- Department of ChemistryMalek-ashtar University of Technology Shahin shahr 83145/115 Iran
| | - Mohammad H. Keshavarz
- Department of ChemistryMalek-ashtar University of Technology Shahin shahr 83145/115 Iran
| | | |
Collapse
|
17
|
Ning X, Sun Y, Fu H, Qu X, Xu Z, Zheng S. N-doped porous carbon supported Ni catalysts derived from modified Ni-MOF-74 for highly effective and selective catalytic hydrodechlorination of 1,2-dichloroethane to ethylene. CHEMOSPHERE 2020; 241:124978. [PMID: 31590023 DOI: 10.1016/j.chemosphere.2019.124978] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/02/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Metal-organic frameworks (MOFs) have received significant attention as promising precursors or sacrificial templates in the preparation of porous carbon supported catalysts. In this study, N-doped porous carbon supported Ni catalysts (denoted as Ni/NC) were prepared using furfuryl alcohol (FA) loaded Ni-MOF-74 as the precursor followed by NH4OH treatment and pyrolysis under N2 atmosphere. For comparison purpose, Ni catalysts supported on porous carbon (denoted as Ni/C) were also prepared by direct pyrolysis of Ni-MOF-74. The selective gas phase catalytic hydrodechlorination of 1,2-dichloroethane to ethylene was carried out to evaluate the catalytic performances of the catalysts. It was found that for Ni catalysts prepared at the same pyrolysis temperature, Ni particle sizes in Ni/NC catalysts were significantly smaller (20-40% smaller) than that of Ni/C. This reflected that pre-modification of Ni-MOF-74 using FA and NH4OH could effectively increase Ni dispersion in Ni catalysts derived from Ni-MOF-74. Moreover, Ni/NC had a markedly stronger ability to form spillover H2 owing to the enhanced metal-support interactions by N-doping. Accordingly, Ni/NC catalysts exhibited much higher catalytic activities than Ni/C catalysts. The turnover frequencies of Ni/NC catalysts were found to be 1.22-1.65 times higher than Ni/C catalysts. Increasing pyrolysis temperature led to decreased catalytic activities of both Ni/C and Ni/NC catalysts, due to the aggregation of Ni particles at higher treatment temperature. The findings from this study demonstrate that the MOF-mediated synthesis method offers a promising way to prepare Ni-based catalysts for catalytic hydrodechlorination of chlorinated hydrocarbons.
Collapse
Affiliation(s)
- Xin Ning
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing, 210046, China
| | - Yuhan Sun
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing, 210046, China
| | - Heyun Fu
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing, 210046, China.
| | - Xiaolei Qu
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing, 210046, China
| | - Zhaoyi Xu
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing, 210046, China
| | - Shourong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing, 210046, China
| |
Collapse
|
18
|
Peng Q, Peng G, Wu L, Chen Y, Han B, Su Q, Liu S, Li X. Photo-reduction enables catalyst regeneration in Fenton reaction on an Fe 2O 3-decorated TiO 2 nanotube-based photocatalyst. Dalton Trans 2020; 49:6730-6737. [PMID: 32369069 DOI: 10.1039/d0dt00670j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Fenton reaction is regarded as an advanced oxidation process that can efficiently remediate environmental pollutants. However, the one-time irreversible consumption of its catalysts raises the cost in practical application. Herein, we report the generation of active Fe2+ sites via photo-reduction by photogenerated electrons on a TiO2 nanotube-based catalyst (TNT(Pd)/Fe2O3) with Fe2O3 decorated on the outside wall, while the inside cavity entrapped Pd nanoparticles. Fenton catalytic investigations under visible light show that TNT(Pd)/Fe2O3 displays superior methyl orange degradation activity with 90% removal in 10 minutes. The kinetic constant is 4.3 times as the sum of the pure photocatalysis and Fenton catalytic kinetic constants. The synergistic effect between the Fenton and photocatalytic reactions is further evidenced by the photocurrent and photodegradation tests. The TNT(Pd)/Fe2O3 catalyst showed no decay in the Fenton-photocatalytic performance over three successive cycles. XPS measurements after long-term stability tests revealed no loss, but a slight increase in the number of Fe2+ species. All of these results suggest that the most active Fe2+ species in the Fenton reaction can be regenerated via the reduction by photogenerated electrons. This work addressed the challenge in catalyst regeneration in the traditional Fenton reaction via photoreduction by rational combination with a photocatalyst and the realized synergistic effect between photocatalysis and the Fenton reaction.
Collapse
Affiliation(s)
- Quanming Peng
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guiming Peng
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Liangpeng Wu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaqian Chen
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Han
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiucheng Su
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shijun Liu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinjun Li
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China. and College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
19
|
Saadun AJ, Zichittella G, Paunović V, Markaide-Aiastui BA, Mitchell S, Pérez-Ramírez J. Epitaxially Directed Iridium Nanostructures on Titanium Dioxide for the Selective Hydrodechlorination of Dichloromethane. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04467] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ali J. Saadun
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Guido Zichittella
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Vladimir Paunović
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Bittor A. Markaide-Aiastui
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| |
Collapse
|
20
|
Fe2O3 modification promotes the photocatalytic performance of TiO2 nanotube confined Pd nanoparticles. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111865] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
21
|
Ruiz-García C, Heras F, Calvo L, Alonso-Morales N, Rodríguez JJ, Gilarranz MA. N-Doped CMK-3 Carbons Supporting Palladium Nanoparticles as Catalysts for Hydrodechlorination. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06084] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Ruiz-García
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - F. Heras
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - L. Calvo
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - N. Alonso-Morales
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - J. J. Rodríguez
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M. A. Gilarranz
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| |
Collapse
|
22
|
Lokteva ES, Golubina EV. Metal-support interactions in the design of heterogeneous catalysts for redox processes. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-0715] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The effect of the metal-support interaction (MSI) has been discussed for several types of catalytic systems comprising metal nanoparticles (Ni, Pd, Au, Fe) on oxide and carbon supports, showing promising catalytic properties in hydrogenation of unsaturated C–C bonds, hydrodechlorination (HDC) of chlorinated organic molecules and CO total oxidation. The MSI of a different strength, from the redistribution of the electron density of nanoparticles (NPs) to the chemical interactions, is determined by the composition of the support and the active site, the method of active metal deposition, calcination temperature, particle size etc. The types of MSI considered in this review include: (1) the interaction of the active metal (Me) NPs with alumina and modified zirconia to form several oxidation states of Me in the composition of surface or bulk chemical compounds with a support; (2) the influence of oxide (alumina, silica) or carbon (highly oriented pyrolytic graphite, Sibunit) supports on the formation of active sites in the catalysts with ultra-low Me loading prepared by deposition of pre-formed metal NPs produced by laser electrodispersion (LED) or as colloidal dispersion; (3) the anchoring of Me NPs on the surface of carbon supports (nanodiamonds and carbon nanotubes) directly with a support surface, e.g. through surface defects, or through surface functional groups; (4) ‘reverse’ MSI in the Me@C composites, consisting of metal NPs, covered with the defected graphene layers or immersed into carbon matrix. It is demonstrated on the example of LED systems, that oxidation of metal under MSI is less significant in carbon-supported systems than in oxide-supported ones, but charge effects can play a noticeable role for both types of supports. Different ways of MSI tuning provide the possibilities to achieve the optimal Men+/Me0 ratio in the catalysts for HDC of mono- and polychlorinated organic molecules, including persistent organic pollutants. One of these ways is tuning the composition of functional groups on the surface of nanodiamonds and carbon nanotubes by additional treatments to achieve the desirable metal anchoring, the optimal metal NPs size and the improved catalytic properties. Unusual type of MSI is represented by the activation of thin graphene shell of Me@C composites by the presence of defects in the shell and a transition metal (Ni, Fe) in subsurface layer. This effect allows H2 activation that is a significant step in many industrially important reactions. The selectivity and activity of such systems can be intentionally changed by varying the nature of metal and reaction temperature. Significant attention has been given in the review to the novel catalytic systems described in the previous works of the authors.
Collapse
Affiliation(s)
| | - Elena V. Golubina
- Lomonosov Moscow State University , Department of Chemistry , Moscow , Russia
| |
Collapse
|
23
|
Properties of Carbon-supported Precious Metals Catalysts under Reductive Treatment and Their Influence in the Hydrodechlorination of Dichloromethane. Catalysts 2018. [DOI: 10.3390/catal8120664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study analyzes the effect of the reduction temperature on the properties of Rh, Pt and Pd catalysts supported on activated carbon and their performance in the hydrodechlorination (HDC) of dichloromethane (DCM). The reduction temperature plays an important role in the oxidation state, size and dispersion of the metallic phase. Pd is more prone to sintering, followed by Pt, while Rh is more resistant. The ratio of zero-valent to electro-deficient metal increases with the reduction temperature, with that effect being more remarkable for Pd and Pt. The higher resistance to sintering of Rh and the higher stability of electro-deficient species under thermal reductive treatment can be attributed to a stronger interaction with surface oxygen functionalities. Dechlorination activity and a TOF increase with reduction temperature (250–450 °C) occurred in the case of Pt/C catalyst, while a great decrease of both was observed for Pd/C, and no significant effect was found for Rh/C. Pt0 represents the main active species for HDC reaction in Pt/C. Therefore, increasing the relative amount of these species increased the TOF value, compensating for the loss of dispersion. In contrast, Pdn+ appears as the main active species in Pd/C and their relatively decreasing occurrence together with the significant decrease of metallic area reduces the HDC activity. Rh/C catalyst suffered only small changes in dispersion and metal oxidation state with the reduction temperature and thus this variable barely affected its HDC activity.
Collapse
|
24
|
Ding X, Yao Z, Xu Y, Liu B, Liu Q, She Y. Aqueous-phase hydrodechlorination of 4-chlorophenol on palladium nanocrystals: Identifying the catalytic sites and unraveling the reaction mechanism. J Catal 2018. [DOI: 10.1016/j.jcat.2018.10.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
25
|
Wu Z, Pan T, Chai Y, Ge S, Ju Y, Li T, Liu K, Lan L, Yip AC, Zhang M. Synthesis of palladium phosphides for aqueous phase hydrodechlorination: Kinetic study and deactivation resistance. J Catal 2018. [DOI: 10.1016/j.jcat.2018.07.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
26
|
Chang MB, Fu CW, Tsai CL. Effect of reducing agent on catalytic hydrodechlorination of aqueous-phase OCDD/F. CHEMOSPHERE 2018; 202:322-329. [PMID: 29574385 DOI: 10.1016/j.chemosphere.2018.03.105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 03/14/2018] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
Removal/destruction of aqueous-phase octachlorodibenzo-p-dioxin (OCDD) and octachlorodibenzofuran (OCDF) via hydrodechlorination process (HDC) is experimentally evaluated over palladium/activated carbon (Pd/AC) catalyst. Pd catalyst is mainly used as active component for effectiveness in removing dioxin from wastewater. Studies on the removal of PCDD/Fs accomplished with HDC reaction in aqueous phase are limited and the influencing factors have not been clarified. In this study, high-concentration OCDD/F are selected as targets, and the effects of solvent and operating temperature on dechlorination efficiency are investigated via experimental tests. The results indicate that the highest hydrodechlorination efficiency is achieved with isopropanol as solvent. The OCDD/F removal efficiency achieved with the solution of 80% isopropanol is higher than that of 50% isopropanol, whereas the destruction efficiency of OCDD/F reveals the opposite trend. Generally, the removal and destruction efficiencies of PCDFs are higher than those of PCDDs. In addition, the activation energies of OCDD and OCDF are calculated with the Arrhenius equation as 24.8 and 23.1 kJ/mol, respectively. Stability tests are conducted with three cycles. Overall, the results indicate that a high performance (≥99%) can be achieved by combining hydrodechlorination with Pd/AC at a temperature range of 303-353 K, demonstrating that Pd/AC has good potential for removing PCDD/Fs from wastewater.
Collapse
Affiliation(s)
- Moo Been Chang
- Graduate Institute of Environmental Engineering, National Central University, Chungli 320, Taiwan.
| | - Ching Wen Fu
- Graduate Institute of Environmental Engineering, National Central University, Chungli 320, Taiwan
| | - Ching Lan Tsai
- Environmental Analysis Laboratory (EAL), Taiwan Environmental Protection Administration (TEPA), Chungli 320, Taiwan
| |
Collapse
|
27
|
Liu R, Chen HM, Fang LP, Xu C, He Z, Lai Y, Zhao H, Bekana D, Liu JF. Au@Pd Bimetallic Nanocatalyst for Carbon-Halogen Bond Cleavage: An Old Story with New Insight into How the Activity of Pd is Influenced by Au. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:4244-4255. [PMID: 29547286 DOI: 10.1021/acs.est.7b05996] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AuPd bimetallic nanocatalysts exhibit superior catalytic performance in the cleavage of carbon-halogen bonds (C-X) in the hazardous halogenated pollutants. A better understanding of how Au atoms promote the reactivity of Pd sites rather than vaguely interpreting as bimetallic effect and determining which type of Pd sites are necessary for these reactions are crucial factors for the design of atomically precise nanocatalysts that make full use of both the Pd and Au atoms. Herein, we systematically manipulated the coordination number of Pd-Pd, d-orbital occupation state, and the Au-Pd interface of the Pd reactive centers and studied the structure-activity relationship of Au-Pd in the catalyzed cleavage of C-X bonds. It is revealed that Au enhanced the activity of Pd atoms primarily by increasing the occupation state of Pd d-orbitals. Meanwhile, among the Pd sites formed on the Au surface, five to seven contiguous Pd atoms, three or four adjacent Pd atoms, and isolated Pd atoms were found to be the most active in the cleavage of C-Cl, C-Br, and C-I bonds, respectively. Besides, neighboring Au atoms directly contribute to the weakening of the C-Br/C-I bond. This work provides new insight into the rational design of bimetallic metal catalysts with specific catalytic properties.
Collapse
Affiliation(s)
- Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Hui-Min Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Department of Chemistry, Faculty of Material Sciences and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Li-Ping Fang
- Department of Chemistry, Faculty of Material Sciences and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Cuihong Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Department of Chemistry, Faculty of Material Sciences and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Zuoliang He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Yujian Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Huachao Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Deribachew Bekana
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| |
Collapse
|
28
|
Ponce S, Munoz M, Cubillas AM, Euser TG, Zhang G, Russell PSJ, Wasserscheid P, Etzold BJM. Stable Immobilization of Size‐Controlled Bimetallic Nanoparticles in Photonic Crystal Fiber Microreactor. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201700131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sebastian Ponce
- Technische Universität DarmstadtErnst-Berl-Institut für Technische und Makromolekulare Chemie Alarich-Weiss-Straße 8 64287 Darmstadt Germany
| | - Macarena Munoz
- University of Erlangen-NurembergFaculty of EngineeringDepartment of Chemical and Biological Engineering Egerlandstraße 3 91058 Erlangen Germany
| | - Ana M. Cubillas
- Max-Planck Institute for the Science of Light Guenther-Scharowsky-Straße 1 91058 Erlangen Germany
| | - Tijmen G. Euser
- Max-Planck Institute for the Science of Light Guenther-Scharowsky-Straße 1 91058 Erlangen Germany
- University of CambridgeNanoPhotonics CentreCavendish Laboratory J. J. Thomson Avenue CB3 0HE Cambridge UK
| | - Gui‐Rong Zhang
- Technische Universität DarmstadtErnst-Berl-Institut für Technische und Makromolekulare Chemie Alarich-Weiss-Straße 8 64287 Darmstadt Germany
| | - Philip St. J. Russell
- Max-Planck Institute for the Science of Light Guenther-Scharowsky-Straße 1 91058 Erlangen Germany
| | - Peter Wasserscheid
- University of Erlangen-NurembergFaculty of EngineeringDepartment of Chemical and Biological Engineering Egerlandstraße 3 91058 Erlangen Germany
| | - Bastian J. M. Etzold
- Technische Universität DarmstadtErnst-Berl-Institut für Technische und Makromolekulare Chemie Alarich-Weiss-Straße 8 64287 Darmstadt Germany
| |
Collapse
|
29
|
Fan G, Li X, Xu C, Jiang W, Zhang Y, Gao D, Bi J, Wang Y. Palladium Supported on Titanium Carbide: A Highly Efficient, Durable, and Recyclable Bifunctional Catalyst for the Transformation of 4-Chlorophenol and 4-Nitrophenol. NANOMATERIALS 2018; 8:nano8030141. [PMID: 29498652 PMCID: PMC5869632 DOI: 10.3390/nano8030141] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/26/2018] [Accepted: 02/27/2018] [Indexed: 11/22/2022]
Abstract
Developing highly efficient and recyclable catalysts for the transformation of toxic organic contaminates still remains a challenge. Herein, Titanium Carbide (Ti3C2) MXene modified by alkali treatment process was selected as a support (designated as alk-Ti3C2X2, where X represents the surface terminations) for the synthesis of Pd/alk-Ti3C2X2. Results show that the alkali treatment leads to the increase of surface area and surface oxygen-containing groups of Ti3C2X2, thereby facilitating the dispersion and stabilization of Pd species on the surface of alk-Ti3C2X2. The Pd/alk-Ti3C2X2 catalyst shows excellent catalytic activity for the hydrodechlorination of 4-chlorophenol and the hydrogenation of 4-nitrophenol in aqueous solution at 25 °C and hydrogen balloon pressure. High initial reaction rates of 216.6 and 126.3 min−1·gpd−1 are observed for the hydrodechlorination of 4-chlorophenol and hydrogenation of 4-nitrophenol, respectively. Most importantly, Pd/alk-Ti3C2X2 exhibits excellent stability and recyclability in both reactions without any promoters. The superior property of Pd/alk-Ti3C2X2 makes it as a potential material for practical applications.
Collapse
Affiliation(s)
- Guangyin Fan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Xiaojing Li
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Caili Xu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Weidong Jiang
- School of Chemical and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Yun Zhang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Daojiang Gao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Jian Bi
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Yi Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| |
Collapse
|
30
|
Influence of microwave activation on the catalytic behavior of Pd-Au/C catalysts employed in the hydrodechlorination of tetrachloromethane. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1364-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
31
|
Baeza JA, Calvo L, Alonso-Morales N, Heras F, Eser S, Rodriguez JJ, Gilarranz MA. Effect of structural ordering of the carbon support on the behavior of Pd catalysts in aqueous-phase hydrodechlorination. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2017.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
32
|
Perez-Coronado AM, Calvo L, Baeza JA, Palomar J, Lefferts L, Rodriguez JJ, Gilarranz MA. Selective Reduction of Nitrite to Nitrogen with Carbon-Supported Pd–AOT Nanoparticles. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02944] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. M. Perez-Coronado
- Sección
Departamental de Ingeniería Química, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - L. Calvo
- Sección
Departamental de Ingeniería Química, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - J. A. Baeza
- Sección
Departamental de Ingeniería Química, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - J. Palomar
- Sección
Departamental de Ingeniería Química, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - L. Lefferts
- Catalytic
Processes and Materials, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500AE, The Netherlands
| | - J. J. Rodriguez
- Sección
Departamental de Ingeniería Química, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - M. A. Gilarranz
- Sección
Departamental de Ingeniería Química, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| |
Collapse
|
33
|
Ezeta-Mejía A, Montes de Oca-Yemha MG, Arce-Estrada EM, Romero-Romo M, Palomar-Pardavé M. Nanostructured Catalysts Synthesized by High-Energy Mechanical Alloying for Formic Acid Electrochemical Oxidation. Electrocatalysis (N Y) 2017. [DOI: 10.1007/s12678-017-0404-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
Bedia J, Lemus J, Calvo L, Rodriguez J, Gilarranz M. Effect of the operating conditions on the colloidal and microemulsion synthesis of Pt in aqueous phase. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
35
|
Alonso-Morales N, Ruiz-Garcia C, Palomar J, Heras F, Calvo L, Rodriguez JJ, Gilarranz MA. Hollow Nitrogen- or Boron-Doped Carbon Submicrospheres with a Porous Shell: Preparation and Application as Supports for Hydrodechlorination Catalysts. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01183] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noelia Alonso-Morales
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| | - Cristina Ruiz-Garcia
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| | - Jose Palomar
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| | - Francisco Heras
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| | - Luisa Calvo
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| | - Juan J. Rodriguez
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| | - Miguel A. Gilarranz
- Sección de Ingeniería
Química, Universidad Autónoma de Madrid, Ctra. Colmenar,
km17, 28049 Madrid, Spain
| |
Collapse
|
36
|
Electrocatalytic dechlorination of chloropicolinic acid mixtures by using palladium-modified metal cathodes in aqueous solutions. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.06.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
37
|
Nishimura S, Ebitani K. Recent Advances in Heterogeneous Catalysis with Controlled Nanostructured Precious Monometals. ChemCatChem 2016. [DOI: 10.1002/cctc.201600309] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shun Nishimura
- School of Materials Science; Japan Advanced Institute of Science and Technology; 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
- Graduate School of Advanced Science and Technology; Japan Advanced Institute of Science and Technology; Japan
| | - Kohki Ebitani
- School of Materials Science; Japan Advanced Institute of Science and Technology; 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
- Graduate School of Advanced Science and Technology; Japan Advanced Institute of Science and Technology; Japan
| |
Collapse
|
38
|
Perez-Coronado A, Calvo L, Alonso-Morales N, Heras F, Rodriguez J, Gilarranz M. Multiple approaches to control and assess the size of Pd nanoparticles synthesized via water-in-oil microemulsion. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.02.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
39
|
Zhou L, Zhang C, McClain MJ, Manjavacas A, Krauter CM, Tian S, Berg F, Everitt HO, Carter EA, Nordlander P, Halas NJ. Aluminum Nanocrystals as a Plasmonic Photocatalyst for Hydrogen Dissociation. NANO LETTERS 2016; 16:1478-84. [PMID: 26799677 DOI: 10.1021/acs.nanolett.5b05149] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Hydrogen dissociation is a critical step in many hydrogenation reactions central to industrial chemical production and pollutant removal. This step typically utilizes the favorable band structure of precious metal catalysts like platinum and palladium to achieve high efficiency under mild conditions. Here we demonstrate that aluminum nanocrystals (Al NCs), when illuminated, can be used as a photocatalyst for hydrogen dissociation at room temperature and atmospheric pressure, despite the high activation barrier toward hydrogen adsorption and dissociation. We show that hot electron transfer from Al NCs to the antibonding orbitals of hydrogen molecules facilitates their dissociation. Hot electrons generated from surface plasmon decay and from direct photoexcitation of the interband transitions of Al both contribute to this process. Our results pave the way for the use of aluminum, an earth-abundant, nonprecious metal, for photocatalysis.
Collapse
Affiliation(s)
| | | | | | - Alejandro Manjavacas
- Department of Physics and Astronomy, University of New Mexico , Albuquerque, New Mexico 87131, United States
| | | | | | - Felix Berg
- Johannes Gutenberg University Mainz , D 55099 Mainz, Germany
| | - Henry O Everitt
- Army Aviation and Missile RD&E Center, Redstone Arsenal , Alabama 35898, United States
| | | | | | | |
Collapse
|
40
|
Lemus J, Bedia J, Calvo L, Simakova IL, Murzin DY, Etzold BJM, Rodriguez JJ, Gilarranz MA. Improved synthesis and hydrothermal stability of Pt/C catalysts based on size-controlled nanoparticles. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00403b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method for the preparation of stable Pt/C catalysts with size-controlled nanoparticles has been developed.
Collapse
Affiliation(s)
- J. Lemus
- Sección de Ingeniería Química
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
| | - J. Bedia
- Sección de Ingeniería Química
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
| | - L. Calvo
- Sección de Ingeniería Química
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
| | | | | | - B. J. M. Etzold
- Ernst-Berl-Institut für Technische und Makromolekulare Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - J. J. Rodriguez
- Sección de Ingeniería Química
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
| | - M. A. Gilarranz
- Sección de Ingeniería Química
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
| |
Collapse
|
41
|
Saikia PK, Bhattacharjee RP, Sarmah PP, Saikia L, Dutta DK. A green synthesis of Pd nanoparticles supported on modified montmorillonite using aqueous Ocimum sanctum leaf extract: a sustainable catalyst for hydrodechlorination of 4-chlorophenol. RSC Adv 2016. [DOI: 10.1039/c6ra22788k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green synthesis of Pd nanoparticles on montmorillonite clay using Ocimum sanctum leaf extract and its application in hydrodechlorination of 4-chlorophenol in water.
Collapse
Affiliation(s)
- Pallab Kumar Saikia
- Materials Sciences and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
| | - Rakhi Paul Bhattacharjee
- Materials Sciences and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
- Academy of Scientific & Innovative Research
| | - Podma Pollov Sarmah
- Materials Sciences and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
| | - Lakshi Saikia
- Materials Sciences and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
| | - Dipak Kumar Dutta
- Materials Sciences and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
| |
Collapse
|
42
|
Wen C, Li Z, Cao C, Wang Y, Guo P, Zhao XS. Structural evolution of palladium nanoparticles and their electrocatalytic activity toward ethanol oxidation in alkaline solution. RSC Adv 2016. [DOI: 10.1039/c6ra18146e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Palladium nanoparticles with smaller particle size exhibit better electrocatalytic activity toward ethanol oxidation.
Collapse
Affiliation(s)
- Changna Wen
- Institute of Materials for Energy and Environment
- State Key Laboratory Breeding Based of New Fiber Materials and Modern Textile
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Zhaopeng Li
- Institute of Materials for Energy and Environment
- State Key Laboratory Breeding Based of New Fiber Materials and Modern Textile
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Caiyun Cao
- Institute of Materials for Energy and Environment
- State Key Laboratory Breeding Based of New Fiber Materials and Modern Textile
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Yiqian Wang
- School of Physics
- Qingdao University
- Qingdao
- P. R. China
| | - Peizhi Guo
- Institute of Materials for Energy and Environment
- State Key Laboratory Breeding Based of New Fiber Materials and Modern Textile
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - X. S. Zhao
- Institute of Materials for Energy and Environment
- State Key Laboratory Breeding Based of New Fiber Materials and Modern Textile
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| |
Collapse
|
43
|
Liu Y, Qiao B, Li X, Le X, Zhang W, Ma J. Hydrodechlorination of chlorophenols catalyzed by SiO2/Pd@m-SiO2 core-shell structured catalyst. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.05.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
44
|
Liu Y, Liu L, Shan J, Zhang J. Electrodeposition of palladium and reduced graphene oxide nanocomposites on foam-nickel electrode for electrocatalytic hydrodechlorination of 4-chlorophenol. JOURNAL OF HAZARDOUS MATERIALS 2015; 290:1-8. [PMID: 25731146 DOI: 10.1016/j.jhazmat.2015.02.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 06/04/2023]
Abstract
A high-performance palladium (Pd) and reduced graphene oxide (RGO) composite electrode was prepared on foam-nickel (foam-Ni) via two-step electrodeposition processes. The scanning electron microscopic (SEM) observation showed that the obtained Pd/RGO/foam-Ni composite electrode displayed a uniform and compact morphology. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopic (XPS) analysis confirmed the successful deposition of Pd and RGO on nickel substrate. The cyclic voltammetric (CV) measurements indicated that the presence of RGO greatly enhanced the active surface area of Pd particles deposited on foam-Ni. The as-deposited Pd/RGO/foam-Ni electrode was applied to electrocatalytic hydrodechlorination (ECH) of 4-chlorophenol (4-CP). Various factors influencing the dechlorination of 4-CP such as dechlorination current, initial concentration of 4-CP, Na2SO4 concentration and initial pH were systematically investigated. The thermodynamic analysis showed that the dechlorination reaction of 4-CP at different temperatures followed the first-order kinetics and the activation energy for 4-CP dechlorination on Pd/RGO/foam-Ni electrode was calculated to be 51.96 kJ mol(-1). Under the optimum conditions, the dechlorination efficiency of 4-CP could reach 100% after 60-min ECH treatment. Moreover, the prepared Pd/RGO/foam-Ni composite electrode showed good stability for recycling utilization in ECH of 4-CP.
Collapse
Affiliation(s)
- Yong Liu
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Lan Liu
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Jun Shan
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Jingdong Zhang
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
| |
Collapse
|
45
|
Diaz E, Mohedano A, Casas J, Calvo L, Gilarranz M, Rodriguez J. Deactivation of a Pd/AC catalyst in the hydrodechlorination of chlorinated herbicides. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.03.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
46
|
Dai Y, Wang Y, Liu B, Yang Y. Metallic nanocatalysis: an accelerating seamless integration with nanotechnology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:268-289. [PMID: 25363149 DOI: 10.1002/smll.201400847] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 07/06/2014] [Indexed: 06/04/2023]
Abstract
Rapidly growing research interests surround heterogeneous nanocatalysis, in which metal nanoparticles (NPs) play a pivotal role as structure-sensitive active centers. With advances in nanotechnology, the morphology of metal NPs can be precisely controlled, which can provide well-defined models of nanocatalysts for understanding and optimizing the structure-reactivity correlations and the catalytic mechanisms. Benefiting from this, further credible evidence can be acquired on well-defined nanocatalysts rather than common multiphase systems, which is of great significance for the design and practical application of active metal nanocatalysts. Numerous studies demonstrate that enhanced structure-sensitive catalytic activity and selectivity are dependent not only on an increased surface-to-volume ratio and special surface atom arrangements, but also on tailored metal-metal and metal-organic-ligand interfaces, which is ascribed to the size, shape, composition, and ligand effects. Size-reactivity relationships and underlying size-dependent metal-oxide interactions are observed in many reactions. For bimetallic nanocatalysts, the composition and nanostructure play critical roles in regulating reactivities. Crystal facets favor individual catalytic selectivity and rates via distinct reaction pathways occurring on diverse atomic arrangements, both to low-index and high-index facets. High-index facets exhibit superior reactivities owing to their high-energy active sites, which facilitate rapid bond-breaking and new bond generation. Additionally, organic ligands may enhance the catalytic activity and selectivity of metal nanocatalysts via changing the adsorption energies of reactants and/or reaction energy barriers. Furthermore, atomically dispersed metals, especially single-atom metallic catalysts, have emerged recently, which can achieve better specific catalytic activity compared to conventional nanostructured metallic catalysts due to the low-coordination environment, stronger interaction with supports, and maximum service efficiency. Here, recent progress in shaped metallic nanocatalysts is examined and several parameters are discussed, as well as finally highlighting single-atom metallic catalysts and some perspectives on nanocatalysis. The integration of nanotechnology and nanocatalysis has been shaping up and, no doubt, the combination of sensitive characterization techniques and quantum calculations will play more important roles in such processes.
Collapse
Affiliation(s)
- Yihu Dai
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | | | | | | |
Collapse
|
47
|
Zhao J, Li W, Fang D. Effect of indium-modified palladium catalysts on the hydrodechlorination of 4-chlorophenol. RSC Adv 2015. [DOI: 10.1039/c5ra05957g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Adding the appropriate amount of In to a Pd catalyst can improve the dispersion of Pd particles and increase the HDC catalytic activity of 4-CP.
Collapse
Affiliation(s)
- Jinbo Zhao
- Institute of Applied Catalysis of Yantai University
- Yantai 264005
- China
| | - Wanjun Li
- Institute of Applied Catalysis of Yantai University
- Yantai 264005
- China
| | - Deren Fang
- Institute of Applied Catalysis of Yantai University
- Yantai 264005
- China
| |
Collapse
|
48
|
Liu Y, Zhang W, Li X, Le X, Ma J. Catalysis of the hydro-dechlorination of 4-chlorophenol and the reduction of 4-nitrophenol by Pd/Fe3O4@SiO2@m-SiO2. NEW J CHEM 2015. [DOI: 10.1039/c5nj01180a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd/Fe3O4@SiO2@m-SiO2catalyst with ultrahigh surface area is used in the catalysis of hydrodechlorination of 4-chlorophenol and reduction of 4-nitrophenol.
Collapse
Affiliation(s)
- Yansheng Liu
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Wei Zhang
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xinlin Li
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xuanduong Le
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jiantai Ma
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| |
Collapse
|
49
|
Wu K, Qian X, Chen L, Xu Z, Zheng S, Zhu D. Effective liquid phase hydrodechlorination of diclofenac catalysed by Pd/CeO2. RSC Adv 2015. [DOI: 10.1039/c4ra16674d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Palladium catalyst supported on CeO2 exhibited much higher catalytic activity for the liquid phase hydrodechlorination of diclofenac than those on Al2O3, activated carbon and SiO2.
Collapse
Affiliation(s)
- Ke Wu
- State Key Laboratory of Pollution Control and Resource Reuse
- Jiangsu Key Laboratory of Vehicle Emissions Control
- School of the Environment
- Nanjing University
- Nanjing 210093
| | - Xiaojun Qian
- State Key Laboratory of Pollution Control and Resource Reuse
- Jiangsu Key Laboratory of Vehicle Emissions Control
- School of the Environment
- Nanjing University
- Nanjing 210093
| | - Liangyan Chen
- State Key Laboratory of Pollution Control and Resource Reuse
- Jiangsu Key Laboratory of Vehicle Emissions Control
- School of the Environment
- Nanjing University
- Nanjing 210093
| | - Zhaoyi Xu
- State Key Laboratory of Pollution Control and Resource Reuse
- Jiangsu Key Laboratory of Vehicle Emissions Control
- School of the Environment
- Nanjing University
- Nanjing 210093
| | - Shourong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse
- Jiangsu Key Laboratory of Vehicle Emissions Control
- School of the Environment
- Nanjing University
- Nanjing 210093
| | - Dongqiang Zhu
- State Key Laboratory of Pollution Control and Resource Reuse
- Jiangsu Key Laboratory of Vehicle Emissions Control
- School of the Environment
- Nanjing University
- Nanjing 210093
| |
Collapse
|
50
|
Liu Y, Li X, Le X, Zhang W, Gu H, Xue R, Ma J. Catalysis of the hydro-dechlorination of 4-chlorophenol by Pd(0)-modified MCM-48 mesoporous microspheres with an ultra-high surface area. NEW J CHEM 2015. [DOI: 10.1039/c5nj00617a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd–MCM-48 catalyst with an ultrahigh surface area was used to catalyse the hydro-dechlorination of 4-chlorophenol.
Collapse
Affiliation(s)
- Yansheng Liu
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xinlin Li
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xuanduong Le
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Wei Zhang
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hao Gu
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ruiwen Xue
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jiantai Ma
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| |
Collapse
|