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Fan G, Guo Y, Chai S, Zhang L, Guan J, Ma G, Han N, Chen Y. Synthesis of δ-MnO 2 via ozonation routine for low temperature formaldehyde removal. J Environ Sci (China) 2025; 147:642-651. [PMID: 39003079 DOI: 10.1016/j.jes.2023.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 07/15/2024]
Abstract
Nowadays, it is still a challenge to prepared high efficiency and low cost formaldehyde (HCHO) removal catalysts in order to tackle the long-living indoor air pollution. Herein, δ-MnO2 is successfully synthesized by a facile ozonation strategy, where Mn2+ is oxidized by ozone (O3) bubble in an alkaline solution. It presents one of the best catalytic properties with a low 100% conversion temperature of 85°C for 50 ppm of HCHO under a GHSV of 48,000 mL/(g·hr). As a comparison, more than 6 times far longer oxidation time is needed if O3 is replaced by O2. Characterizations show that ozonation process generates a different intermediate of tetragonal β-HMnO2, which would favor the quick transformation into the final product δ-MnO2, as compared with the relatively more thermodynamically stable monoclinic γ-HMnO2 in the O2 process. Finally, HCHO is found to be decomposed into CO2 via formate, dioxymethylene and carbonate species as identified by room temperature in-situ diffuse reflectance infrared fourier transform spectroscopy. All these results show great potency of this facile ozonation routine for the highly active δ-MnO2 synthesis in order to remove the HCHO contamination.
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Affiliation(s)
- Guijun Fan
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Science and Technology on Particle Materials, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 361021, China
| | - Yacong Guo
- Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
| | - Shaohua Chai
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, China
| | - Le Zhang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Science and Technology on Particle Materials, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 361021, China
| | - Jian Guan
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Science and Technology on Particle Materials, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 361021, China
| | - Guojun Ma
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ning Han
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Science and Technology on Particle Materials, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 361021, China.
| | - Yunfa Chen
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Science and Technology on Particle Materials, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 361021, China.
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2
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Li S, Ying Z, Peng R, Zhou Y, Zhang S, Zhao J, Song S, Chen J, Ye J. Enhanced 1,2-dichloroethane removal using g-C 3N 4/Blue TiO 2 nanotube array photoanode in microbial photoelectrochemical cells. CHEMOSPHERE 2024; 363:142839. [PMID: 39019181 DOI: 10.1016/j.chemosphere.2024.142839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/19/2024]
Abstract
The compound 1,2-dichloroethane (1,2-DCA), a persistent and ubiquitous pollutant, is often found in groundwater and can strongly affect the ecological environment. However, the extreme bio-impedance of C-Cl bonds means that a high energy input is needed to drive biological dechlorination. Biotechnology techniques based on microbial photoelectrochemical cell (MPEC) could potentially convert solar energy into electricity and significantly reduce the external energy inputs currently needed to treat 1,2-DCA. However, low electricity-generating efficiency at the anode and sluggish bioreaction kinetics at the cathode limit the application of MPEC. In this study, a g-C3N4/Blue TiO2-NTA photoanode was fabricated and incorporated into an MPEC for 1,2-DCA removal. Optimal performance was achieved when Blue TiO2 nanotube arrays (Blue TiO2-NTA) were loaded with graphitic carbon nitride (g-C3N4) 10 times. The photocurrent density of the g-C3N4/Blue TiO2-NTA composite electrode was 2.48-fold higher than that of the pure Blue TiO2-NTA electrode under light irradiation. Furthermore, the MPEC equipped with g-C3N4/Blue TiO2-NTA improved 1,2-DCA removal efficiency by 45.21% compared to the Blue TiO2-NTA alone, which is comparable to that of a microbial electrolysis cell. In the modified MPEC, the current efficiency reached 69.07% when the light intensity was 150 mW cm-2 and the 1,2-DCA concentration was 4.4 mM. The excellent performance of the novel MPEC was attributed to the efficient direct electron transfer process and the abundant dechlorinators and electroactive bacteria. These results provide a sustainable and cost-effective strategy to improve 1,2-DCA treatment using a biocathode driven by a photoanode.
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Affiliation(s)
- Shaoyu Li
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Zanyun Ying
- Ningbo Key Laboratory of Agricultural Germplasm Resources Mining and Environmental Regulation, College of Science & Technology, Ningbo University, Ningbo, 315212, China
| | - Ruijian Peng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Yu Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Shihan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jingkai Zhao
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jianmeng Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China; School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, 310023, China.
| | - Jiexu Ye
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
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3
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Chen L, Li K, Xue T, Yang Y, Gong Z, Dong F. Efficient and Durable Oxidation Removal of Formaldehyde over Layered Double Hydroxide Catalysts at Room Temperature. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:10378-10387. [PMID: 38805367 DOI: 10.1021/acs.est.4c01606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Room temperature catalytic oxidation (RTCO) using non-noble metals has emerged as a highly promising technique for removal of formaldehyde (HCHO) under ambient conditions; however, non-noble catalysts still face the challenges related to poor water resistance and low stability under harsh conditions. In this study, we synthesized a series of layered double hydroxides (LDHs) incorporating various dual metals (MgAl, ZnAl, NiAl, NiFe, and NiTi) for formaldehyde oxidation at ambient temperature. Among the synthesized catalysts, the NiTi-LDH catalyst showed an HCHO removal efficiency and CO2 yield close to 100.0%, and exceptional water resistance and chemical stability on running 1300 min. The abundant hydroxyl groups in LDHs directly bonded with HCHO, leading to the production of CO2 and H2O, thus inhibiting the formation of CO, even in the absence of O2 and H2O. The coexistence of O2 effectively reduced the reaction barrier for H2O molecule dissociation, facilitating the formation of hydroxyl groups and their subsequent backfill on the catalyst surface. The mechanisms underlying the involvement and regeneration of hydroxyl groups in room temperature oxidation of formaldehyde were elucidated with the combined in situ DRIFTS, HCHO-TPD-MS, and DFT calculations. This work not only demonstrates the potential of LDH catalysts in environmental applications but also advances the understanding of the fundamental processes involved in room temperature oxidation of formaldehyde.
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Affiliation(s)
- Lvcun Chen
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
- School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Kanglu Li
- School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Ting Xue
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yan Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Synergy Innovation Institute of GDUT, Shantou, Guangdong 515041, China
| | - Zhengjun Gong
- School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
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Zhao Q, Zhang Y, He G, Ma J, Wang L, He H. Modulating the Electronic Structures of Pt on Pt/TiO 2 Catalyst for Boosting Toluene Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:9361-9369. [PMID: 38687995 DOI: 10.1021/acs.est.4c00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Surface hydroxyl groups commonly exist on the catalyst and present a significant role in the catalytic reaction. Considering the lack of systematical researches on the effect of the surface hydroxyl group on reactant molecule activation, the PtOx/TiO2 and PtOx-y(OH)y/TiO2 catalysts were constructed and studied for a comprehensive understanding of the roles of the surface hydroxyl group in the oxidation of volatiles organic compounds. The PtOx/TiO2 formed by a simple treatment with nitric acid presented greatly enhanced activity for toluene oxidation in which the turnover frequency of toluene oxidation on PtOx/TiO2 was around 14 times as high as that on PtOx-y(OH)y/TiO2. Experimental and theoretical results indicated that adsorption/activation of toluene and reactivity of oxygen atom on the catalyst determined the toluene oxidation on the catalyst. The removal of surface hydroxyl groups on PtOx promoted strong electronic coupling of the Pt 5d orbital in PtOx and C 2p orbital in toluene, facilitating the electron transfers from toluene to PtOx and subsequently the adsorption/activation of toluene. Additionally, the weak Pt-O bond promoted the activation of surface lattice oxygen, accelerating the deep oxidation of activated toluene. This study clarifies the inhibiting effect of surface hydroxyl groups on PtOx in toluene oxidation, providing a further understanding of hydrocarbon oxidation.
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Affiliation(s)
- Qian Zhao
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yan Zhang
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Guangzhi He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinzhu Ma
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lian Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Nie L, Chen H, Wang J, Yang Y, Fang C. Enhanced Visible-Light H 2O 2 Production over Pt/g-C 3N 4 Schottky Junction Photocatalyst. Inorg Chem 2024; 63:4770-4782. [PMID: 38409795 DOI: 10.1021/acs.inorgchem.4c00075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Photocatalytic for hydrogen peroxide (H2O2) production is thought as a promising technology owing to its clean and green properties with the cheap and easily available raw materials of H2O and O2. Herein, Pt/g-C3N4 Schottky junction photocatalysts with ultralow Pt contents (0.025-0.1 wt %) were successfully fabricated by an impregnation-reduction method. It can efficiently reduce O2 to generate H2O2 without a sacrificial agent under visible-light irradiation. The yield of H2O2 produced over Pt0.05/g-C3N4 with the optimal 0.05 wt % Pt reached 31.82 μM, which was 2.46 times that of g-C3N4 and higher than most of those in the literature. It also showed good stability in three repeated tests. The deposition of highly dispersed metal Pt nanoparticles with low and limited content can expose enough active Pt atoms, significantly enhance the separation efficiency of photogenerated carriers, and reduce its negative effect on H2O2 decomposition, resulting in improved and outstanding efficiency of H2O2 production. The ·O2- radicals were found to be the main active species. The mechanism of photocatalytic H2O2 production was confirmed to be a two-step single electron route (O2 + e-→ ·O2- → H2O2).
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Affiliation(s)
- Longhui Nie
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Heng Chen
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Jing Wang
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Yiqiong Yang
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Caihong Fang
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
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Liu X, Liu Y, Wu Y, Dong S, Qi G, Chen C, Xi S, Luo P, Dai Y, Han Y, Zhou Y, Guo Y, Wang J. Room temperature removal of high-space-velocity formaldehyde boosted by fixing Pt nanoparticles into Beta zeolite framework. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131848. [PMID: 37336111 DOI: 10.1016/j.jhazmat.2023.131848] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/29/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023]
Abstract
Catalytic oxidation of volatile organic compounds like formaldehyde (HCHO) over the noble metals catalysts at room temperature is among the most promising strategies to control indoor pollution but remains one challenge to maximize the efficiency of noble metal species. Herein, we demonstrated the straightforward encapsulation of highly dispersive Pt nanoparticles (NPs) within BEA zeolite and adjacent with the surface hydroxyl groups to reach the synergistic HCHO oxidation at 25 °C. High efficiency and long-term stability was reached under large space velocity (∼100% conversion at 180,000 mL (gcat × h)-1 and >95% at 360,000 mL (gcat × h)-1), affording rapid elimination rate of 129.4 μmol (gPt × s)-1 and large turnover frequency of 2.5 × 10-2 s-1. This is the first synergy example derived from the hydroxyl groups and confined noble metals within zeolites that accelerated the rate-determining step, the formate transformation, in the HCHO elimination.
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Affiliation(s)
- Xiaoling Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yitong Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yue Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Shan Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Guoqin Qi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Cailing Chen
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment, A⁎STAR (Agency for Science, Technology and Research), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore
| | - Pan Luo
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yihu Dai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yu Han
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Yu Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
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7
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Song L, Zhang R, Zhou C, Shu G, Ma K, Yue H. Room-temperature activation of the C-H bond in the dehydrogenation of ethane over a Cu/TiO 2 catalyst. Chem Commun (Camb) 2023; 59:478-481. [PMID: 36524553 DOI: 10.1039/d2cc05438h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel photocatalytic system of Cu/TiO2 for activation the C-H bond in the dehydrogenation of ethane to ethylene at room temperature is proposed. The optimized 1%-Cu/TiO2 catalyst achieved C2H6 conversion of 1.70%, C2H4 selectivity of 98.41%, and exhibited excellent stability. The active site Cuδ+ showed high dispersion on the TiO2 surface. Theoretical calculations and in situ diffuse reflectance infrared Fourier transform spectroscopy revealed a reaction mechanism: C2H6 is first activated by adsorption over the Cu4C/TiO2 catalyst with elongation of the C-H bond, attacked by h+/˙OH to form ethyl radicals, which are then converted to C2H4.
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Affiliation(s)
- Lei Song
- Low-carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Ronghao Zhang
- Low-carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Changan Zhou
- Low-carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guoqiang Shu
- Low-carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Kui Ma
- Low-carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hairong Yue
- Low-carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China.,Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
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8
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Jang Y, Lee YH, Eom H, Lee SM, Kim SS. Effect of preparation method of noble metal supported catalyts on formaldehyde oxidation at room temperature: Gas or liquid phase reduction. J Environ Sci (China) 2022; 122:201-216. [PMID: 35717085 DOI: 10.1016/j.jes.2022.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 01/12/2022] [Accepted: 01/17/2022] [Indexed: 06/15/2023]
Abstract
Formaldehyde (HCHO) is toxic to the human body and is one of the main threats to the indoor air quality (IAQ). As such, the removal of HCHO is imperative to improving the IAQ, whereby the most useful method to effectively remove HCHO at room temperature is catalytic oxidation. This review discusses catalysts for HCHO room-temperature oxidation, which are categorized according to their preparation methods, i.e., gas-phase reduction and liquid-phase reduction methods. The HCHO oxidation performances, structural features, and reaction mechanisms of the different catalysts are discussed, and directions for future research on catalytic oxidation are reviewed.
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Affiliation(s)
- Younghee Jang
- Department of Environmental Energy Envineering, Graduate School of kyonggi University, Gyeonggi-do 16227, Korea
| | - Ye Hwan Lee
- Department of Environmental Energy Envineering, Graduate School of kyonggi University, Gyeonggi-do 16227, Korea
| | - Hanki Eom
- Department of Environmental Energy Engineeing, Kyonggi University, Gyonggi-do 16227, Korea
| | - Sang Moon Lee
- Department of Environmental Energy Engineeing, Kyonggi University, Gyonggi-do 16227, Korea
| | - Sung Su Kim
- Department of Environmental Energy Engineeing, Kyonggi University, Gyonggi-do 16227, Korea.
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9
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Lee M, Yim H, Kim B, Kim S, Choi W, Kim W, Kim HI. Harnessing Waste Heat from Indoor lamps for Sustainable Thermocatalytic Mineralization of Acetaldehyde using Platinized TiO 2. CHEMOSPHERE 2022; 308:136350. [PMID: 36096302 DOI: 10.1016/j.chemosphere.2022.136350] [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: 07/20/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
This study demonstrates the first reported thermocatalytic oxidation of an indoor volatile organic compound (VOC), acetaldehyde, by harnessing the waste-heat energy from indoor light sources (e.g., halogen lamps) without additional energy inputs. With an optimal Pt-TiO2 catalyst, the designed catalyst-coated lampshade was successfully activated under waste-heat energy (∼120 °C) and achieved the complete mineralization of CH3CHO into CO2 (k = 0.02 min-1). The catalytic activity of Pt-TiO2 was extremely dependent on its preparation method which greatly influenced the characteristics (e.g., oxidation state and size) of Pt. The thermocatalytic oxidation mechanism of CH3CHO over Pt-TiO2 was investigated, which revealed that O2 and H2O sources play vital roles. Although Pt is an expensive noble metal, the thermocatalytic process on the Pt-TiO2-coated lampshade without additional energy, along with its outstanding activity, can offset the high material cost. The proposed strategy offers a sustainable and feasible method for the degradation of indoor VOCs.
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Affiliation(s)
- Minhyung Lee
- Department of Civil & Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Heewon Yim
- Department of Civil & Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea; Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX, 77843-3136, USA
| | - Bupmo Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Suho Kim
- Department of Civil & Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Wonyong Choi
- KENTECH Institute for Environmental and Climate Technology, Korea Institute of Energy Technology (KENTECH), Naju, 58330, Republic of Korea
| | - Wooyul Kim
- KENTECH Institute for Environmental and Climate Technology, Korea Institute of Energy Technology (KENTECH), Naju, 58330, Republic of Korea.
| | - Hyoung-Il Kim
- Department of Civil & Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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10
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Xiao L, Yang Z, Zhu H, Yan G. Nanoflower-like BiOBr/TiO2 p-n Heterojunction Composites for Enhanced Photodegradation of Formaldehyde and Dyes. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Acid-Modified Sepiolite-Supported Pt (Noble Metal) Catalysts for HCHO Oxidation at Ambient Temperature. Catalysts 2022. [DOI: 10.3390/catal12111299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The critical need to enhance the quality of indoor air leads to the improvement of catalyst activity for the removal of formaldehyde. Sepiolite can be utilized in catalytic reactions for its unique structure, composition and high surface area. The adhesion between sepiolite fibers and the blocked microporous channel (by impurities) demands the activation of natural sepiolite through acid treatment. This treatment successfully produces acid-modified sepiolite Pt-supported samples. The impacts of different acid concentrations, Pt loading content and calcination temperature on catalytic activity for formaldehyde (HCHO) oxidation are studied. The catalytic activity of HCHO is characterized and evaluated by techniques including specific surface area, X-ray diffraction, Fourier transform infrared spectrum, X-ray photoelectron spectroscopy and transmission electron microscopy. The results show the maximum specific area of sepiolite at the optimized 0.06 M acid concentration. Among all the prepared samples, the 0.02Pt/Sep catalyst calcined at 500 °C exhibits the highest catalytic activity for the oxidation of HCHO.
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12
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Yuan F, Li C, Yang R, Tan Y, Ma R, Zhang X, Zheng S, Sun Z. High-efficient mineralization of formaldehyde by three-dimensional "PIZZA"-like bismuth molybdate-titania/diatomite composite. J Colloid Interface Sci 2022; 624:713-724. [PMID: 35696789 DOI: 10.1016/j.jcis.2022.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/03/2022] [Accepted: 06/03/2022] [Indexed: 12/17/2022]
Abstract
The application of TiO2-based photocatalysts in air pollution control has attracted much attention thanks to their advantageous green and sustainable performance. However, how to improve the degradation efficiency under visible light is still challenging. Herein, we report a ternary three-dimensional "PIZZA"-like Bi2MoO6-TiO2/diatomite (BTD) composite with high-efficient mineralization and recycling performance towards gaseous formaldehyde (HCHO) under visible light. The high-efficient adsorption-photocatalysis collaborative system with intimate interface combination is successfully established among Bi2MoO6 (BMO), TiO2 and diatomite. The HCHO mineralization rate constant of BTD-1:2 composite is up to around 4.03 times and 2.18 times higher than those of bare BMO and binary Bi2MoO6-TiO2 composite, respectively. It is indicated that the introduction of diatomite increases active sites and plays the vital role in the improvement of photocatalysis. In addition, the photogenerated holes (h+) and hydroxyl radical (OH) are proved to be the main active species for HCHO mineralization. Furthermore, there is a competitive adsorption relationship between water (H2O) molecules and HCHO molecules, and both H2O molecules and oxygen (O2) molecules participated in the reaction of HCHO mineralization based on in-situ DRIFTs spectra analysis. Our work would give a new perspective on gaseous HCHO purification.
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Affiliation(s)
- Fang Yuan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Chunquan Li
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Renfeng Yang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Ye Tan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Ruixin Ma
- Hebei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Langfang 065201, China
| | - Xiangwei Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Shuilin Zheng
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
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13
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Kim SB, Shin JH, Kim GJ, Hong SC. Promoting Metal–Support Interaction on Pt/TiO 2 Catalyst by Antimony for Enhanced Carbon Monoxide Oxidation Activity at Room Temperature. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Su Bin Kim
- Environmental Technology Division, Korea Testing Laboratory, 87 Digital-ro 26-gil, Guro-gu, Seoul08389, South Korea
| | - Jung Hun Shin
- Department of Environmental Energy Engineering, Graduate School of Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do16227, South Korea
| | - Geo Jong Kim
- Chemical & Process Technology Division, Korea Research Insititute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon34114, South Korea
| | - Sung Chang Hong
- Department of Environmental Energy Engineering, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do16227, South Korea
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14
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Wang X, Jiang T, Chen J, Zhang J, Mai Y. Hydroxy‐Modified Hierarchical Porous Na‐CoOx/CN Material for Low‐Concentration High‐Throughput Formaldehyde Oxidation at Room Temperature. Chempluschem 2022; 87:e202200218. [DOI: 10.1002/cplu.202200218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/02/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Xi Wang
- Guangdong Academy of Sciences Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering 318 Che Bei Xi Road, Tianhe, Guangzhou 510665 Guangzhou CHINA
| | - Tingting Jiang
- Guangdong Academy of Sciences Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering CHINA
| | - Jiazhi Chen
- Guangdong Academy of Sciences Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering CHINA
| | - Junjie Zhang
- Guangdong Academy of Sciences Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering CHINA
| | - Yuliang Mai
- Guangdong Academy of Sciences Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering CHINA
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15
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Alsaiari RA. Supported ruthenium catalyst as an effective catalyst for selective oxidation of toluene. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Fan J, Wang T, Wu B, Wang C. Highly Active Amino-Fullerene Derivative-Modified TiO2 for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation. NANOMATERIALS 2022; 12:nano12142366. [PMID: 35889590 PMCID: PMC9321472 DOI: 10.3390/nano12142366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 01/27/2023]
Abstract
Formaldehyde (HCHO) is a ubiquitous indoor pollutant that seriously endangers human health. The removal of formaldehyde effectively at room temperature has always been a challenging problem. Here, a kind of amino-fullerene derivative (C60-EDA)-modified titanium dioxide (C60-EDA/TiO2) was prepared by one-step hydrothermal method, which could degrade the formaldehyde under solar light irradiation at room temperature with high efficiency and stability. Importantly, the introduction of C60-EDA not only increases the adsorption of the free formaldehyde molecules but also improves the utilization of sunlight and suppresses photoelectron-hole recombination. The experimental results indicated that the C60-EDA/TiO2 nanoparticles exhibit much higher formaldehyde removal efficiency than carboxyl-fullerene-modified TiO2, pristine TiO2 nanoparticles, and almost all other reported formaldehyde catalysts especially in the aspect of the quality of formaldehyde that is treated by catalyst with unit mass (mHCHO/mcatalyst = 40.85 mg/g), and the removal efficiency has kept more than 96% after 12 cycles. Finally, a potential formaldehyde degradation pathway was deduced based on the situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) and reaction intermediates. This work provides some indications into the design and fabrication of the catalysts with excellent catalytic performances for HCHO removal at room temperature.
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Affiliation(s)
- Jingbiao Fan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (J.F.); (T.W.)
| | - Tao Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (J.F.); (T.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bo Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (J.F.); (T.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (B.W.); (C.W.)
| | - Chunru Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (J.F.); (T.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (B.W.); (C.W.)
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17
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Wang P, Ma X, Hao X, Tang B, Abudula A, Guan G. Oxygen vacancy defect engineering to promote catalytic activity toward the oxidation of VOCs: a critical review. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2078555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Peifen Wang
- Department of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
- Graduate School of Science and Technology, Hirosaki University, Hirosaki, Japan
| | - Xuli Ma
- Department of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
| | - Xiaogang Hao
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
| | - Bing Tang
- School of Environmental Science and Technology, Guangdong University of Technology, Guangzhou, P.R. China
| | - Abuliti Abudula
- Graduate School of Science and Technology, Hirosaki University, Hirosaki, Japan
| | - Guoqing Guan
- Graduate School of Science and Technology, Hirosaki University, Hirosaki, Japan
- Energy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, Hirosaki, Japan
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18
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Zhang J, Vikrant K, Kim KH, Dong F. Photocatalytic destruction of volatile aromatic compounds by platinized titanium dioxide in relation to the relative effect of the number of methyl groups on the benzene ring. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153605. [PMID: 35114233 DOI: 10.1016/j.scitotenv.2022.153605] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 01/12/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
The photocatalytic destruction (PCD) of volatile organic compounds (VOC) into environmentally benign compounds is one of the most ideal routes for the management of indoor air quality. It is nevertheless not easy to achieve the mineralization of aromatic VOC through PCD technology because of their recalcitrant structures (i.e., conjugated π benzene ring). In this research, the PCD potential against three model aromatic hydrocarbons (i.e., benzene (B), toluene (T), and m-xylene (X): namely, BTX) has been explored using a titanium dioxide (TiO2) supported platinum (Pt) catalyst after the high-temperature hydrogen (H2)-based reduction (R) pre-treatment (i.e., Pt/TiO2-R). The effects of the key process variables (e.g., relative humidity (RH), oxygen (O2) content, flow rate, VOC concentration, and the co-presence of VOC) on the PCD efficiency and related mechanisms were also assessed in detail. The PCD efficiency is seen to increase with the rise in the increasing number of methyl groups on the benzene ring (in the order of benzene (46.5%), toluene (68.2%), and m-xylene (95.9%)), as the adsorption and activation of the VOC molecule on the photocatalyst surface are promoted by the increased distribution of electrons on the benzene ring. The BTX were oxidated subsequently by the photogenerated reactive oxygen species (ROS), i.e., the hydroxyl radicals (•OH) and superoxide anion radicals (•O2-). The overall results of this study are expected to help expand the applicability of photocatalysis towards air quality management by offering detailed insights into the factors and processes governing the photocatalytic decomposition of aromatic VOCs.
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Affiliation(s)
- Jinjian Zhang
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea
| | - Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea.
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou), Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313001, China
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19
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Li N, Huang B, Dong X, Luo J, Wang Y, Wang H, Miao D, Pan Y, Jiao F, Xiao J, Qu Z. Bifunctional zeolites-silver catalyst enabled tandem oxidation of formaldehyde at low temperatures. Nat Commun 2022; 13:2209. [PMID: 35459866 PMCID: PMC9033842 DOI: 10.1038/s41467-022-29936-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 03/24/2022] [Indexed: 11/09/2022] Open
Abstract
Bifunctional catalysts with tandem processes have achieved great success in a wide range of important catalytic processes, however, this concept has hardly been applied in the elimination of volatile organic compounds. Herein, we designed a tandem bifunctional Zeolites-Silver catalyst that enormously boosted formaldehyde oxidation at low temperatures, and formaldehyde conversion increased by 50 times (100% versus 2%) at 70 °C compared to that of monofunctional supported silver catalyst. This is enabled by designing a bifunctional catalyst composed of acidic ZSM-5 zeolite and silver component, which provides two types of active sites with complementary functions. Detached acidic ZSM-5 activates formaldehyde to generate gaseous intermediates of methyl formate, which is more easily oxidized by subsequent silver component. We anticipate that the findings here will open up a new avenue for the development of formaldehyde oxidation technologies, and also provide guidance for designing efficient catalysts in a series of oxidation reactions.
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Affiliation(s)
- Na Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Bin Huang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Xue Dong
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Jinsong Luo
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Yi Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Hui Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Dengyun Miao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Feng Jiao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.
| | - Jianping Xiao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.
| | - Zhenping Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China.
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20
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Continuous synthesis of TiO2-supported noble metal nanoparticles and their application in ammonia borane hydrolysis. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117479] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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22
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Fang R, Huang J, Huang X, Luo X, Sun Y, Dong F, Huang H. Reheat treatment under vacuum induces pre-calcined α-MnO 2 with oxygen vacancy as efficient catalysts for toluene oxidation. CHEMOSPHERE 2022; 289:133081. [PMID: 34843838 DOI: 10.1016/j.chemosphere.2021.133081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/12/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
Engineering α-MnO2 with abundant oxygen vacancies is efficient to enhance its catalytic activity towards toluene oxidation. A simple and facile method was introduced to fabricate oxygen vacancies on α-MnO2 surface by reheating the pre-calcined samples under vacuum condition. The reheat treatment especially at 180 °C is beneficial for the formation of oxygen vacancies on α-MnO2 surface, enhancing the oxidation of toluene. The toluene conversion is up to 100% at 270 °C, which is 30 °C lower than that of α-MnO2 without reheat treatment. The apparent activation energy (16.8 kJ mol-1) of MnO2-180 catalyst is lowest among these catalysts, which is essential for accelerating the oxidation of toluene. In-situ DRIFTS results indicate that the MnO2-180 sample promotes the formation of benzaldehyde and the occurrence of ring-opening reaction, thus effectively improving the catalytic performance for toluene oxidation. A possible catalytic oxidation mechanism of toluene over α-MnO2 catalysts after reheat treatment was proposed.
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Affiliation(s)
- Ruimei Fang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China.
| | - Jing Huang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Xinyue Huang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China; Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou, 313000, China
| | - Xiao'ai Luo
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China; Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou, 313000, China
| | - Yanjuan Sun
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China; Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou, 313000, China.
| | - Fan Dong
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China; Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou, 313000, China
| | - Haibao Huang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
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23
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Liu F, Zhang S, Zhang X, Shen J, Wan L, Bahi A, Ko F. Synergy of surface sodium and hydroxyl on NaTi 2HO 5 nanotubes accelerating the Pt-dominated ambient HCHO oxidation. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126769. [PMID: 34388924 DOI: 10.1016/j.jhazmat.2021.126769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/01/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Surface hydroxyl is widely perceived as conducive to HCHO degradation. Here, a kind of sodium titanate with interlayered hydroxyls (NaTi2HO5) was prepared to study the action conditions of surface hydroxyls in HCHO oxidation. The nanotubes mainly exposing (001) and nanobelts mainly exposing (100) are synthesized as the two morphologies of NaTi2HO5. We found the (001) facet is much more favored to HCHO adsorption via HRTEM and XPS analysis. The DFT calculations prove that the synergy of surface hydroxyl and Na atom is perfect for HCHO chemisorption. By this means NaTi2HO5 nanotubes can partially oxidize HCHO into formate and release very few CO, measured by in situ DRIFTS. Dominated by Pt nanoparticles, the complete oxidation of HCHO can be performed on NaTi2HO5 nanotubes with enhanced early reaction speed. Rather than simple surface hydroxyl, the effective synergy of hydroxyl and positive ion is proposed as an advantage for HCHO oxidation.
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Affiliation(s)
- Fang Liu
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, PR China; School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Shiying Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, PR China.
| | - Xiangchao Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, PR China
| | - Jie Shen
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, PR China
| | - Long Wan
- College of Materials Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Addie Bahi
- Department of Materials Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Frank Ko
- Department of Materials Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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24
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Huang W, Zhang L, Li Z, Zhang X, Dong X, Zhang Y. Efficient CO2 reduction with H2O via photothermal chemical reaction based on Au-MgO dual catalytic site on TiO2. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2021.101801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Xin S, Zhu S, Zheng J, Nie L. One-step fabrication of electrospun flexible and hierarchically porous Pt/γ-Al 2O 3 nanofiber membranes for HCHO and particulate removal. NEW J CHEM 2022. [DOI: 10.1039/d2nj03080b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A flexible Pt/γ-Al2O3 nanofiber membrane with optimal 2 wt% Pt content can effectively decompose HCHO into CO2 at room temperature.
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Affiliation(s)
- Sitian Xin
- Hubei Provincial Key Laboratory of Green Materials for Light Industry. Hubei University of Technology, Wuhan 430068, China
- Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Silong Zhu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry. Hubei University of Technology, Wuhan 430068, China
- Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Jianfei Zheng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry. Hubei University of Technology, Wuhan 430068, China
- Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Longhui Nie
- Hubei Provincial Key Laboratory of Green Materials for Light Industry. Hubei University of Technology, Wuhan 430068, China
- Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
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26
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Zhou M, Ou H, Li S, Qin X, Fang Y, Lee S, Wang X, Ho W. Photocatalytic Air Purification Using Functional Polymeric Carbon Nitrides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102376. [PMID: 34693667 PMCID: PMC8693081 DOI: 10.1002/advs.202102376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/20/2021] [Indexed: 05/19/2023]
Abstract
The techniques for the production of the environment have received attention because of the increasing air pollution, which results in a negative impact on the living environment of mankind. Over the decades, burgeoning interest in polymeric carbon nitride (PCN) based photocatalysts for heterogeneous catalysis of air pollutants has been witnessed, which is improved by harvesting visible light, layered/defective structures, functional groups, suitable/adjustable band positions, and existing Lewis basic sites. PCN-based photocatalytic air purification can reduce the negative impacts of the emission of air pollutants and convert the undesirable and harmful materials into value-added or nontoxic, or low-toxic chemicals. However, based on previous reports, the systematic summary and analysis of PCN-based photocatalysts in the catalytic elimination of air pollutants have not been reported. The research progress of functional PCN-based composite materials as photocatalysts for the removal of air pollutants is reviewed here. The working mechanisms of each enhancement modification are elucidated and discussed on structures (nanostructure, molecular structue, and composite) regarding their effects on light-absorption/utilization, reactant adsorption, intermediate/product desorption, charge kinetics, and reactive oxygen species production. Perspectives related to further challenges and directions as well as design strategies of PCN-based photocatalysts in the heterogeneous catalysis of air pollutants are also provided.
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Affiliation(s)
- Min Zhou
- Department of Science and Environmental StudiesThe Education University of Hong KongTai Po, New TerritoriesHong KongP. R. China
| | - Honghui Ou
- Department of ChemistryTsinghua UniversityBeijing100084P. R. China
| | - Shanrong Li
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Xing Qin
- Department of Science and Environmental StudiesThe Education University of Hong KongTai Po, New TerritoriesHong KongP. R. China
| | - Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Shun‐cheng Lee
- Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHong KongP. R. China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Wingkei Ho
- Department of Science and Environmental StudiesThe Education University of Hong KongTai Po, New TerritoriesHong KongP. R. China
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27
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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28
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Wang Y, Zhao J, Chen M, Huang X, Xu Y. Fast organic degradation on Ti- and Bi-based photocatalysts via co-deposited Pt and Ni 3(PO 4) 2 nanoparticles. J Colloid Interface Sci 2021; 600:629-638. [PMID: 34044230 DOI: 10.1016/j.jcis.2021.05.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/10/2021] [Accepted: 05/16/2021] [Indexed: 10/21/2022]
Abstract
Environmental remediation via semiconductor (SC) photocatalysis has attracted great attention over the past three decades. However, prospect for large scale application is still under debate, basically due to the bottleneck of fast charge recombination and/or slow surface reaction. Herein we report a universal solution of speeding up organic degradation simply via co-deposited Pt and nickel phosphate (NiP). Several representative SCs have been examined, including TiO2 (anatase, rutile, and brookite) under a 320 nm light, and Bi-based SC (BiVO4, Bi2WO6, and Bi2MoO6) under a 420 nm light. In all cases, the rates of phenol degradation in aqueous solution always varied not only in the order of NiP/Pt/SC > Pt/SC > NiP/SC > SC, but also NiP/Pt/SC > (Pt/SC + NiP/SC + SC). Meanwhile, hydroquinone and benzoquinone were produced as the main intermediates, but their concentration was much lower than that of phenol decreased, especially for NiP-containing sample. The solid was characterized with several techniques, including photoluminescence and (photo)electrochemical measurement. It is proposed that Pt and NiP act as co-catalysts for O2 reduction and phenol oxidation, respectively. Such electron and hole transfer promote each other, additionally improving the efficiency of charge separation, and further increasing the rates of surface reactions. This work highlights the necessity of a versatile co-catalyst in SC photocatalysis.
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Affiliation(s)
- Yaru Wang
- State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Jianjun Zhao
- State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Min Chen
- State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Xubo Huang
- State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Yiming Xu
- State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou, China.
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Wang W, Yu H, Li K, Lin F, Huang C, Yan B, Cheng Z, Li X, Chen G, Hou LA. Insoluble matrix proteins from shell waste for synthesis of visible-light response photocatalyst to mineralize indoor gaseous formaldehyde. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125649. [PMID: 33743377 DOI: 10.1016/j.jhazmat.2021.125649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/27/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
HCHO is the most concerned indoor air pollutant that photocatalytic degradation is a feasible approach. To achieve efficient and complete degradation of HCHO under visible light irradiation, heteroatoms are usually doped in TiO2. But using natural materials as a dopant instead of expensive and toxic chemicals to fertilize TiO2 remains challenging. This paper proposes a sustainable and green approach to synthesize an efficient N, Ca co-doped TiO2 photocatalyst (TIMP) by using the insoluble matrix proteins (IMPs) extracted from abalone shell. TIMP-0.8 achieves near completely degradation HCHO within 45 min under visible light at ambient temperature and exhibits superior stability after 7 cycles. TIMP-0.8 has monodispersity with smaller diameter, high porosity, abundant defects and high adsorption affinity for surface hydroxyls compared with pure TiO2. With the assistance of IMPs, the rate-determining step of HCHO degradation changes from -COOH oxidation to spontaneous decomposition of HCO3-, significantly facilitating the elimination and mineralization of HCHO. Overall, IMPs from abalone shell are natural surfactant, bio-templet, and dopant for TiO2 modification, contributing to desirable visible-light photocatalytic performance for HCHO degradation. This paper provides new insight for high-value utilization of waste shell and photocatalytic indoor purification.
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Affiliation(s)
- Wenjun Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Hongdi Yu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Kai Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China.
| | - Cheng Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Zhanjun Cheng
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Xiaoqing Li
- Qingdao Junrong Institute of Innovation Engineering Co., Ltd, Qingdao 266000, PR China
| | - Guanyi Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China; School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
| | - Li-An Hou
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China; Xi'an High-Tech Institute, Xi'an 710025, PR China.
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30
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One Pot Synthesis, Surface and Magnetic Properties of Cu2O/Cu and Cu2O/CuO Nanocomposites. CRYSTALS 2021. [DOI: 10.3390/cryst11070751] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A series of copper-based systems containing two different nanocomposites (Cu2O/CuO and Cu2O/Cu) was synthesized by the egg white assisted auto-combustion route. This method was distinguished by the simplicity of its steps, low cost, one-pot synthesis process at low temperature and, short time. The characterization of the as prepared nanocomposites was carried out by using X-ray diffraction (XRD), Fourier-transform infrared (FTIR), Scanning electron microscope (SEM) and transmission electron micrograph (TEM), Energy dispersive spectrometry (EDS) techniques. Surface and magnetic properties of the obtained systems were determined by using N2 adsorption/desorption isotherms at 77 K and the vibrating sample magnetometer (VSM) technique. XRD results confirmed the formation of Cu2O/CuO and Cu2O/Cu nanocomposites with different ratios of well crystalline CuO, Cu2O, and Cu phases. FTIR results of the combusted product displays the presence of both CuO and Cu2O, respectively. SEM/EDS and TEM results confirm the formation of a porous nanocomposite containing Cu, O, and C elements. The change in concentration of the oxygen vacancies at the surface or interface of both Cu2O/CuO and Cu2O/Cu nanoparticles resulted in different changes in their magnetization. Based on this study, it is possible to obtain nanocomposite-based copper with multiple valances by a simple and inexpensive route which can be suitable for the fabrication of different transition metal composites.
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31
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Al-Senani GM, Abd-Elkader OH, Deraz NM. Fabrication of Cu1.5Mn1.5O4 Nanoparticles Using One Step Self-Assembling Route to Enhance Energy Consumption. APPLIED SCIENCES 2021; 11:2034. [DOI: 10.3390/app11052034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The preparation of copper manganite (hopcalite, Cu1.5Mn1.5O4), as a single phase, was achieved by using a sustainable method of green synthesis. This method is based on the replacement of the conventional “brute force” ceramic preparation by the recent “soft force” green synthesis via the egg white assisted one-step method. In other words, we present a facile and rapid methodology to prepare the nanocrystalline Cu1.5Mn1.5O4 spinel as a single phase, compared to our previous work using ceramic and glycine-assisted combustion methods. The as-synthesized copper manganite was characterized using X-ray diffraction (XRD), Fourier-transform infrared (FTIR), energy-dispersive spectroscopy (EDS), and scanning electron microscope (SEM). We used a vibrating sample magnetometer to determine the magnetic properties of the prepared sample (VSM). XRD, FTIR, SEM, EDS and transmittance electron micrograph (TEM) resulted in synthesis of a successful cubic spinel Cu1.5Mn1.5O4 system with a sponge crystal structure. The particles of the prepared materials are polycrystalline in their nature and the sizes ranged between 50 and 100 nm. The magnetic measurement demonstrated that the generated nanostructure has been found to exhibit ferromagnetism at room temperature with an optimum saturation magnetization value (0.2944 emu/g).
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32
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Zheng Y, Ren J, Zhou L, Yuan K, Sun X, Yin H, Zhang Y. Biphasic Titania Derivatives of Titanium Metal‐Organic Framework Nanoplates for High‐Efficiency Photoreduction of Diluted CO
2
to Methane. ChemCatChem 2021. [DOI: 10.1002/cctc.202002005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ya‐Li Zheng
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
| | - Jia‐Tong Ren
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
| | - Liang Zhou
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
| | - Kun Yuan
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
| | - Xiao‐Chen Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
| | - Hai‐Jing Yin
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
| | - Ya‐Wen Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 P.R. China
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33
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Sensitive sandwich-type voltammetric immunosensor for breast cancer biomarker HER2 detection based on gold nanoparticles decorated Cu-MOF and Cu2ZnSnS4 NPs/Pt/g-C3N4 composite. Mikrochim Acta 2021; 188:78. [DOI: 10.1007/s00604-021-04735-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/27/2021] [Indexed: 12/11/2022]
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34
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Progress in fabrication of one-dimensional catalytic materials by electrospinning technology. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.09.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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35
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Qin X, Chen X, Chen M, Zhang J, He H, Zhang C. Highly efficient Ru/CeO 2 catalysts for formaldehyde oxidation at low temperature and the mechanistic study. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01894e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ru species have a high redox capacity on a CeO2 support, and the metallic Ru species could be easily oxidized back to RuOx species.
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Affiliation(s)
- Xiaoxiao Qin
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Xueyan Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Min Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Jianghao Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Changbin Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences
- Beijing
- China
- University of Chinese Academy of Sciences
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36
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Qi L, Le Y, Wang C, Lei R, Wu T. Hierarchical nanostructures self-assembled from δ-MnO 2 ultrathin nanosheets and Mn 3O 4 octahedrons for efficient room-temperature HCHO oxidation. NEW J CHEM 2021. [DOI: 10.1039/d0nj05515h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Self-assembling ultrathin active δ-MnO2 nanosheets and Mn3O4 octahedrons into hierarchical texture enhances room-temperature formaldehyde oxidation at a low-level of Pt.
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Affiliation(s)
- Lifang Qi
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Yao Le
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Chao Wang
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Rui Lei
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Tian Wu
- Institute of Materials Research and Engineering (IMRE)
- Hubei University of Education
- Wuhan
- P. R. China
- College of Chemistry and Life Science
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37
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Yurdakal S, Çetinkaya S, Augugliaro V, Palmisano G, Sá J, Lewin E, Garlisi C. Selective photocatalytic oxidation of 3-pyridinemethanol on platinized acid/base modified TiO 2. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00569c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TEM micrographs of selected platinized samples.
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Affiliation(s)
- Sedat Yurdakal
- Kimya Bölümü
- Fen-Edebiyat Fakültesi
- Afyon Kocatepe Üniversitesi
- Ahmet Necdet Sezer Kampüsü
- 03200 Afyonkarahisar
| | - Sıdıka Çetinkaya
- Kimya Bölümü
- Fen-Edebiyat Fakültesi
- Afyon Kocatepe Üniversitesi
- Ahmet Necdet Sezer Kampüsü
- 03200 Afyonkarahisar
| | - Vincenzo Augugliaro
- “Schiavello-Grillone” Photocatalysis Group
- Dipartimento di Energia
- Ingegneria dell'Informazione e Modelli Matematici (DEIM)
- Università degli Studi di Palermo
- 90128 Palermo
| | - Giovanni Palmisano
- Department of Chemical Engineering
- Khalifa University of Science and Technology
- Abu Dhabi
- United Arab Emirates
- Research and Innovation on CO2 and H2 (RICH) Center
| | - Jacinto Sá
- Department of Chemistry - Ångström Laboratory
- Physical Chemistry
- Ångströmlaboratoriet
- 751 20 UPPSALA
- Sweden
| | - Erik Lewin
- Department of Chemistry - Ångström Laboratory
- Inorganic Chemistry
- Ångströmlaboratoriet
- 751 20 UPPSALA
- Sweden
| | - Corrado Garlisi
- Department of Chemical Engineering
- Khalifa University of Science and Technology
- Abu Dhabi
- United Arab Emirates
- Research and Innovation on CO2 and H2 (RICH) Center
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38
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Mine S, Yamaguchi T, Ting KW, Maeno Z, Siddiki SMAH, Oshima K, Satokawa S, Shimizu KI, Toyao T. Reverse water-gas shift reaction over Pt/MoO x/TiO 2: reverse Mars–van Krevelen mechanism via redox of supported MoO x. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00289a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pt/MoOx/TiO2 shows excellent catalytic performance for the reverse water-gas shift reaction at 250 °C via reverse Mars–van Krevelen mechanism.
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Affiliation(s)
- Shinya Mine
- Institute for Catalysis
- Hokkaido University
- Japan
| | | | | | - Zen Maeno
- Institute for Catalysis
- Hokkaido University
- Japan
| | | | - Kazumasa Oshima
- Department of Materials and Life Science
- Faculty of Science and Technology
- Seikei University
- Musashino
- Japan
| | - Shigeo Satokawa
- Department of Materials and Life Science
- Faculty of Science and Technology
- Seikei University
- Musashino
- Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis
- Hokkaido University
- Japan
- Elements Strategy Initiative for Catalysts and Batteries
- Kyoto University
| | - Takashi Toyao
- Institute for Catalysis
- Hokkaido University
- Japan
- Elements Strategy Initiative for Catalysts and Batteries
- Kyoto University
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39
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Li L, Wang L, Zhao X, Wei T, Wang H, Li X, Gu X, Yan N, Li L, Xiao H. Excellent Low-Temperature Formaldehyde Decomposition Performance over Pt Nanoparticles Directly Loaded on Cellulose Triacetate. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04568] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Long Li
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Lei Wang
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xuejuan Zhao
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China
| | - Tongtong Wei
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Haibo Wang
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaobao Li
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaoli Gu
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Ning Yan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto M5S 3E5, Canada
| | - Licheng Li
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton E3B 5A3, New Brunswick, Canada
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40
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Soni V, Goel V, Singh P, Garg A. Abatement of formaldehyde with photocatalytic and catalytic oxidation: a review. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2020-0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Formaldehyde is one of the vital chemicals produced by industries, transports, and domestic products. Formaldehyde emissions adversely affect human health and it is well known for causing irritation and nasal tumors. The major aim of the modern indoor formaldehyde control study is in view of energy capacity, product selectivity, security, and durability for efficient removal of formaldehyde. The two important methods to control this harmful chemical in the indoor environments are photocatalytic oxidation and catalytic oxidation with noble metals and transition metal oxides. By harmonizing different traditional photocatalytic and catalytic oxidation technologies that have been evolved already, here we give a review of previously developed efforts to degrade indoor formaldehyde. The major concern in this article is based on getting the degradation of formaldehyde at ambient temperature. In this article, different aspects of these two methods with their merits and demerits are discussed. The possible effects of operating parameters like preparation methods, support, the effect of light intensity in photocatalytic oxidation, relative humidity, etc. have been discussed comprehensively.
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Affiliation(s)
- Vipin Soni
- Department of Mechanical Engineering , National Institute of Technology , Hamirpur , H.P. 177005 , India
| | - Varun Goel
- Department of Mechanical Engineering , National Institute of Technology , Hamirpur , H.P. 177005 , India
| | - Paramvir Singh
- Combustion Research Laboratory , Aerospace Engineering Department , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Alok Garg
- Department of Chemical Engineering , National Institute of Technology , Hamirpur , H.P. 177005 , India
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41
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Yusuf A, Sun Y, Snape C, He J, Wang C, Ren Y, Jia H. Low-temperature formaldehyde oxidation over manganese oxide catalysts: Potassium mediated lattice oxygen mobility. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111204] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Quinson J, Jensen KM. From platinum atoms in molecules to colloidal nanoparticles: A review on reduction, nucleation and growth mechanisms. Adv Colloid Interface Sci 2020; 286:102300. [PMID: 33166723 DOI: 10.1016/j.cis.2020.102300] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022]
Abstract
Platinum (Pt) is one of the most studied materials in catalysis today and considered for a wide range of applications: chemical synthesis, energy conversion, air treatment, water purification, sensing, medicine etc. As a limited and non-renewable resource, optimized used of Pt is key. Nanomaterial design offers multiple opportunities to make the most of Pt resources down to the atomic scale. In particular, colloidal syntheses of Pt nanoparticles are well documented and simple to implement, which accounts for the large interest in research and development. For further breakthroughs in the design of Pt nanomaterials, a deeper understanding of the intricate synthesis-structures-properties relations of Pt nanoparticles must be obtained. Understanding how Pt nanoparticles form from molecular precursors is both a challenging and rewarding area of investigation. It is directly relevant to develop improved Pt nanomaterials but is also a source of inspiration to design other precious metal nanostructures. Here, we review the current understanding of Pt nanoparticle formation. This review is aimed at readers with interest in Pt nanoparticles in general and their colloidal syntheses in particular. Readers with a strongest interest on the study of nanomaterial formation will find here the case study of Pt. The preferred model systems and characterization techniques used to perform the study of Pt nanoparticle syntheses are discussed. In light of recent achievements, further direction and areas of research are proposed.
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43
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Lin Y, Cao Y, Yao Q, Chai OJH, Xie J. Engineering Noble Metal Nanomaterials for Pollutant Decomposition. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04258] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yingzheng Lin
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Yitao Cao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Osburg Jin Huang Chai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Jianping Xie
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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44
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Dong N, Ye Q, Chen M, Cheng S, Kang T, Dai H. Sodium-treated sepiolite-supported transition metal (Cu, Fe, Ni, Mn, or Co) catalysts for HCHO oxidation. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63599-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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45
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Cui W, Liu L, Yang J, Tan N. Effect of preparation method on the catalytic performance of formaldehyde oxidation over octahedral Fe 3O 4 microcrystals supported Pt catalysts. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1637752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Weiyi Cui
- Key Laboratory of Chemical Cleaner Production Technology of Jilin Province, Jilin Institute of Chemical Technology, Jilin, China
| | - Ling Liu
- Institute of Petrochemical Technology, Jilin Institute of Chemical Technology, Jilin, China
| | - Jiajun Yang
- Institute of Petrochemical Technology, Jilin Institute of Chemical Technology, Jilin, China
| | - Naidi Tan
- Key Laboratory of Chemical Cleaner Production Technology of Jilin Province, Jilin Institute of Chemical Technology, Jilin, China
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46
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Size effect of γ-Al2O3 supports on the catalytic performance of Pd/γ-Al2O3 catalysts for HCHO oxidation. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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Chen J, Huang M, Chen W, Tang H, Jiao Y, Zhang J, Wang G, Wang R. Defect Engineering and Synergistic Effect in Co3O4 Catalysts for Efficient Removal of Formaldehyde at Room Temperature. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03459] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, China
| | - Meng Huang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Wang Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Haiyan Tang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yi Jiao
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610065, China
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Gang Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, China
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48
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Wang N, Xu Z, Luo T, Yan Z, Jin M, Shi L. Pt Anchored on Mn(Co)CO
3
/MnCo
2
O
4
Heterostructure for Complete Oxidation of Formaldehyde at Room Temperature. ChemistrySelect 2020. [DOI: 10.1002/slct.202002870] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nenghuan Wang
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
| | - Zhihua Xu
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
- School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 China
| | - Tingting Luo
- Materials Analysis Center Wuhan University of Technology Wuhan 430070 China
| | - Zhaoxiong Yan
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
| | - Mei Jin
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
| | - Ling Shi
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
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Li J, Zhang M, Chen J, Jia H. The Effect of Noble-Metal Deposition Routes on the Characteristics and Photocatalytic Activity of M-TiBi1.9%O2 (M = Pt and Pd). Top Catal 2020. [DOI: 10.1007/s11244-020-01307-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wang Y, Liu K, Wu J, Hu Z, Huang L, Zhou J, Ishihara T, Guo L. Unveiling the Effects of Alkali Metal Ions Intercalated in Layered MnO2 for Formaldehyde Catalytic Oxidation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02310] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Wang
- School of Environmental Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Kaisi Liu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Ji Wu
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
- International Institute for Carbon-Neutral Energy Research, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, Japan
| | - Zhimi Hu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Liang Huang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Jun Zhou
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Tatsumi Ishihara
- International Institute for Carbon-Neutral Energy Research, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, Japan
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, Japan
| | - Limin Guo
- School of Environmental Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
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