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Gao Z, Cai L, Miao C, Hui T, Wang Q, Li D, Feng J. Electronic Metal−Support Interaction Strengthened Pt/CoAl‐LDHs Catalyst for Selective Cinnamaldehyde Hydrogenation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhexi Gao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Luoyu Cai
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Chenglin Miao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Tianli Hui
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Qian Wang
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Dianqing Li
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Junting Feng
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering 98#, No.15, Beisanhuan East Road 100029 Beijing CHINA
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Lian Q, Roy A, Kizilkaya O, Gang DD, Holmes W, Zappi ME, Zhang X, Yao H. Uniform Mesoporous Amorphous Cobalt-Inherent Silicon Oxide as a Highly Active Heterogeneous Catalyst in the Activation of Peroxymonosulfate for Rapid Oxidation of 2,4-Dichlorophenol: The Important Role of Inherent Cobalt in the Catalytic Mechanism. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57190-57206. [PMID: 33291883 DOI: 10.1021/acsami.0c20341] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Amorphous cobalt-inherent silicon oxide (Co-SiOx) was synthesized for the first time and employed as a highly active catalyst in the activation of peroxymonosulfate (PMS) for the rapid oxidation of 2,4-dichlorophenol (2,4-DCP). The characterization results revealed that the 0.15Co-SiOx possessed a high specific surface area of 607.95 m2/g with a uniform mesoporous structure (24.33 nm). The X-ray diffraction patterns indicate that the substituted cobalt atoms enlarge the unit cell parameter of the original SiO2, and the selected area electron diffraction pattern confirmed the amorphous nature of Co-SiOx. More bulk oxygen vacancies (Ov) existing in the Co-SiOx were identified to be one of the primary contributors to the significantly enhanced catalytic activation of PMS. The cobalt substitution both creates and stabilizes the surficial Ov and forms the adequately active Co(II)-Ov pairs which engine the electron transfer process during the catalytic activities. The active Co(II)-Ov pairs weaken the average electronegativity of Co/Si and Co/O sites, resulting in the prevalent changes in final state energy, which is the main driving cause of the binding energy shifts in the X-ray photoelectron spectroscopy (XPS) spectra of Si and O among all samples. The increase of the relative proportion of Co(III) in the spent Co-SiOx probably causes the binding energy shifts of the Co XPS spectrum compared to that of the Co-SiOx. The amorphous Co-SiOx outperforms stable and quick 2,4-DCP degradation, achieving a much higher kinetic rate of 0.7139 min-1 at pH = 7.02 than others via sulfate radical advanced oxidation processes (AOPs), photo-Fenton AOPs, H2O2 reagent AOPs, and other AOP approaches. The efficient degradation performance makes the amorphous Co-SiOx as a promising catalyst in removing 2,4-DCP or organic-rich pollutants.
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Affiliation(s)
- Qiyu Lian
- Department of Civil Engineering, University of Louisiana at Lafayette, P.O. Box 43598, Lafayette, Louisiana 70504, United States
- Center for Environmental Technology, The Energy Institute of Louisiana, P.O. Box 43597, Lafayette, Louisiana 70504, United States
| | - Amitava Roy
- The J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices (CAMD), Baton Rouge, Louisiana 70806, United States
| | - Orhan Kizilkaya
- The J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices (CAMD), Baton Rouge, Louisiana 70806, United States
| | - Daniel Dianchen Gang
- Department of Civil Engineering, University of Louisiana at Lafayette, P.O. Box 43598, Lafayette, Louisiana 70504, United States
- Center for Environmental Technology, The Energy Institute of Louisiana, P.O. Box 43597, Lafayette, Louisiana 70504, United States
| | - William Holmes
- Center for Environmental Technology, The Energy Institute of Louisiana, P.O. Box 43597, Lafayette, Louisiana 70504, United States
- Department of Chemical Engineering, University of Louisiana at Lafayette, P.O. Box 43675, Lafayette, Louisiana 70504, United States
| | - Mark E Zappi
- Department of Civil Engineering, University of Louisiana at Lafayette, P.O. Box 43598, Lafayette, Louisiana 70504, United States
- Center for Environmental Technology, The Energy Institute of Louisiana, P.O. Box 43597, Lafayette, Louisiana 70504, United States
- Department of Chemical Engineering, University of Louisiana at Lafayette, P.O. Box 43675, Lafayette, Louisiana 70504, United States
| | - Xu Zhang
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, School of Civil Engineering, Beijing Jiaotong University, 3 Shangyuancun, Beijing 100044, P. R. China
| | - Hong Yao
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, School of Civil Engineering, Beijing Jiaotong University, 3 Shangyuancun, Beijing 100044, P. R. China
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Huang D, Zhang Y, Zhang J, Wang H, Wang M, Wu C, Cheng D, Chi Y, Zhao Z. The synergetic effect of a structure-engineered mesoporous SiO2–ZnO composite for doxycycline adsorption. RSC Adv 2019; 9:38772-38782. [PMID: 35540193 PMCID: PMC9075987 DOI: 10.1039/c9ra08106b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 11/15/2019] [Indexed: 12/21/2022] Open
Abstract
The design and synthesis of an efficient adsorbent for antibiotics-based pollutants is challenging due to the unique physicochemical properties of antibiotics. The development of a mesoporous SiO2–ZnO composite is a novel way to achieve excellent adsorption efficiency for doxycycline hydrochloride (DOX) in aqueous solutions due to the engineered highly open mesoporous structure and the ZnO-modified framework. Unlike the traditional method of obtaining mesoporous composites by post-synthesis techniques, the novel one-step method developed in this study is both effective and environment-friendly. The adsorption mechanism based on the novel synergetic effect between SiO2 and ZnO was demonstrated through several experiments. SiO2 led to the creation of a 3D open framework structure that provides sufficient space and rapid transport channels for adsorption, ensuring rapid adsorption kinetics. A higher number of active sites and enhanced affinity of the contaminants are provided by ZnO, ensuring high adsorption capacity. The mesoporous SiO2–ZnO could be easily regenerated without a significant decrease in its adsorption efficiency. These results indicate that the developed strategy afforded a simple approach for synthesizing the novel mesoporous composites, and that mesoporous SiO2–ZnO is a possible alternative adsorbent for the removal of DOX from wastewater. The design and synthesis of an efficient adsorbent for antibiotics-based pollutants is challenging due to the unique physicochemical properties of antibiotics.![]()
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Affiliation(s)
- Danya Huang
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Ying Zhang
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Jingjing Zhang
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Hongli Wang
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Minggang Wang
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Chen Wu
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Daowen Cheng
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Yue Chi
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Zhankui Zhao
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
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Ebinumoliseh I, Grosvenor AP. Effect of Synthetic Method and Annealing Temperature on the Structure of Hollandite-Type Oxides. Inorg Chem 2018; 57:14353-14361. [PMID: 30379541 DOI: 10.1021/acs.inorgchem.8b02464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hollandite is a class of metal oxide material with the general formula A2B8O16. Several methods have been used in the synthesis of this type of metal oxide, and the synthetic methods reported have typically employed high annealing temperatures between 1200 and 1300 °C. Appropriate synthetic methods must be employed to successfully synthesize these hollandite-type oxides at lower annealing temperatures. Hollandite compounds have been synthesized using ceramic (high annealing temperature only) and coprecipitation (high and low annealing temperatures) methods. Annealing temperatures ranging from 1200 to 700 °C have been employed in the thermal treatment process. Powder X-ray diffraction and X-ray absorption near-edge spectroscopy (XANES) were conducted on hollandite-type oxides (Ba xAl2 xTi8-2 xO16-δ; x = 1.2; and Ba xAl xFe xTi8-2 xO16-δ, Ba xFe2 xTi8-2 xO16-δ; x = 1.16). Structural comparisons between materials annealed in the temperature range from 1200 to 800 °C were made, and an examination of the XANES spectra and powder X-ray diffraction patterns has provided confirmation of the absence of significant structural changes in these hollandite materials. This study has shown that hollandite-type materials can be formed using annealing temperatures as low as 700-800 °C when a coprecipitation method is used, with little change to the local and long-range structures being detected.
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Affiliation(s)
- Ifeoma Ebinumoliseh
- Department of Chemistry , University of Saskatchewan , Saskatoon , Saskatchewan S7N 5C9 , Canada
| | - Andrew P Grosvenor
- Department of Chemistry , University of Saskatchewan , Saskatoon , Saskatchewan S7N 5C9 , Canada
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Haruki M, Li S, Qian G, Watkins JJ. Reactive deposition of cobalt using bis(2,2,6,6-tetramethyl-3,5-heptanedionato) cobalt(II) from supercritical carbon dioxide. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2015.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Boningari T, Pappas DK, Ettireddy PR, Kotrba A, Smirniotis PG. Influence of SiO2 on M/TiO2 (M = Cu, Mn, and Ce) Formulations for Low-Temperature Selective Catalytic Reduction of NOx with NH3: Surface Properties and Key Components in Relation to the Activity of NOx Reduction. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504709j] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thirupathi Boningari
- Chemical
Engineering Program, School of Energy, Environmental, Biological and
Medicinal Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
| | - Dimitrios K. Pappas
- Chemical
Engineering Program, School of Energy, Environmental, Biological and
Medicinal Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
| | - Padmanabha R. Ettireddy
- Research
and Applied Science Division, Tenneco Inc., Grass Lake, Michigan 49240, United States
| | - Adam Kotrba
- Research
and Applied Science Division, Tenneco Inc., Grass Lake, Michigan 49240, United States
| | - Panagiotis G. Smirniotis
- Chemical
Engineering Program, School of Energy, Environmental, Biological and
Medicinal Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
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