1
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Song X, Li G, Zhou W, Wu Y, Liu X, Zhu Z, Huo P, Wang M. Construction of Au-modified CN-based donor-acceptor system coupled with dual photothermal effects for efficient photoreduction of carbon dioxide. J Colloid Interface Sci 2024; 664:868-881. [PMID: 38493652 DOI: 10.1016/j.jcis.2024.03.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/02/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Conversion of CO2 into high value-added fuels through the photothermal effect is an effective approach for utilizing solar energy. In this study, we prepared the CN-based photocatalyst Py-CTN-Au with both donor-acceptor (D-A) system and dual photothermal effects using a simple two-step method involving calcination and photo-deposition. Real-time monitoring with a thermal imaging camera revealed that Py-CTN-Au0.5 achieved a maximum stable temperature of 180 °C, which was approximately 1.2 times higher than that of Py-CTN (155 °C) and 1.9 times higher than that of g-CN (95 °C) under the same reaction conditions. Under the optimized reaction conditions, Py-CTN-Au0.5 exhibited a CO release rate of 30.59 umol g-1 after 4 h of reaction, which was 7.3 times higher than that of pure g-CN (4.18 umol g-1). The D-A system not only facilitated the separation and transformation of charge carriers but also induced a photothermal effect to accelerate the photoreduction of CO2. Additionally, the cocatalyst Au nanoparticles (Au NPs) further enhanced the charge carrier dynamics and photothermal effect by increasing the built-in electric field intensity and localized surface plasmon resonance (LSPR) effect, respectively. The dual photothermal effects resulting from the non-radiative photon conversion of the D-A structure and the Au NPs LSPR effect, along with the enhanced charge carrier dynamics, catalyzed the efficient photoreduction of CO2. DFT simulations were used to confirm the effect of D-A system and Au NPs. In-situ FTIR results demonstrated that the synergistic photothermal effect promoted the formation of the key intermediate species COOH*, which is beneficial for the photocatalytic reduction of CO2. This study provides valuable insights into the multiple photothermal synergistic effects in photocatalytic reactions.
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Affiliation(s)
- Xianghai Song
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; International Innovation center for Forest Chemicals and Materials of Nanjing Forestry, Nanjing Forestry University, Nanjing 210037, China.
| | - Gen Li
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Weiqiang Zhou
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuanfeng Wu
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Xin Liu
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhi Zhu
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Pengwei Huo
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Mei Wang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China.
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2
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Guo RT, Zhang ZR, Xia C, Li CF, Pan WG. Recent progress of cocatalysts loaded on carbon nitride for selective photoreduction of CO 2 to CH 4. NANOSCALE 2023; 15:8548-8577. [PMID: 37128998 DOI: 10.1039/d3nr00242j] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A photocatalytic system driven by solar light is one of the promising strategies for converting CO2 into valuable energy. The reduction of CO2 to CH4 is widely studied since CH4 has a high energy density as the main component of nonrenewable natural gas. Therefore, it is necessary to develop semiconductor materials with high photocatalytic activity and CH4 selectivity. Graphitic carbon nitride (g-C3N4/CN) has attracted widespread attention for photocatalytic CO2 reduction due to its excellent redox ability and visible light response. A hybrid system constructed by loading cocatalysts on g-C3N4 can significantly improve the yield of target products, and serve as a general platform to explore the mechanism of the CO2 reduction reaction. Herein, we briefly introduce the theory of selective CO2 photoreduction and the basic properties of cocatalysts. Then, several typical configurations and modification strategies of cocatalyst/CN systems for promoting CH4 selective production are presented in detail. In particular, we systematically summarize the application of cocatalyst/CN composite photocatalysts in the selective reduction of CO2 to methane, according to the classification of cocatalysts (monometal, bimetal, metal-based compound, and nanocarbon materials). Finally, the challenges and perspectives for developing cocatalyst/g-C3N4 systems with high CH4 selectivity are presented to guide the rational design of catalysts with high performance in the future.
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Affiliation(s)
- Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
| | - Zhen-Rui Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Cheng Xia
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Chu-Fan Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
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3
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Wang N, Cheng L, Liao Y, Xiang Q. Effect of Functional Group Modifications on the Photocatalytic Performance of g-C 3 N 4. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300109. [PMID: 36965084 DOI: 10.1002/smll.202300109] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/03/2023] [Indexed: 06/18/2023]
Abstract
In recent years, photocatalysis has received increasing attention in alleviating energy scarcity and environmental treatment, and graphite carbon nitride (g-C3 N4 ) is used as an ideal photocatalyst. However, it still remains numerous challenges to obtain the desirable photocatalytic performance of intrinsic g-C3 N4 . Functional group functionalization, formed by introducing functional groups into the bulk structure, is one of the common modification techniques to modulate the carrier dynamics and increases the number of active sites, offering new opportunities to break the limits for structure-to-performance relationship of g-C3 N4 . Nevertheless, the general overview of the advance of functional group modification of g-C3 N4 is less reported yet. In order to better understand the structure-to-performance relationship at the molecular level, a review of the latest development of functional group modification is urgently needed. In this review, the functional group modification of g-C3 N4 in terms of structures, properties, and photocatalytic activity is mainly focused, as well as their mechanism of reaction from the molecular level insights is explained. Second, the recent progress of the application of introducing functional groups in g-C3 N4 is introduced and examples are given. Finally, the difficulties and challenges are presented, and based on this, an outlook on the future research development direction is shown.
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Affiliation(s)
- Na Wang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Lei Cheng
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Yulong Liao
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Quanjun Xiang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
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4
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Ciocarlan RG, Blommaerts N, Lenaerts S, Cool P, Verbruggen SW. Recent Trends in Plasmon-Assisted Photocatalytic CO 2 Reduction. CHEMSUSCHEM 2023; 16:e202201647. [PMID: 36626298 DOI: 10.1002/cssc.202201647] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Direct photocatalytic reduction of CO2 has become an highly active field of research. It is thus of utmost importance to maintain an overview of the various materials used to sustain this process, find common trends, and, in this way, eventually improve the current conversions and selectivities. In particular, CO2 photoreduction using plasmonic photocatalysts under solar light has gained tremendous attention, and a wide variety of materials has been developed to reduce CO2 towards more practical gases or liquid fuels (CH4 , CO, CH3 OH/CH3 CH2 OH) in this manner. This Review therefore aims at providing insights in current developments of photocatalysts consisting of only plasmonic nanoparticles and semiconductor materials. By classifying recent studies based on product selectivity, this Review aims to unravel common trends that can provide effective information on ways to improve the photoreduction yield or possible means to shift the selectivity towards desired products, thus generating new ideas for the way forward.
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Affiliation(s)
- Radu-George Ciocarlan
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Natan Blommaerts
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
- Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Silvia Lenaerts
- Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Pegie Cool
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Sammy W Verbruggen
- Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
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5
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Polyacrylonitrile support impregnated with amine-functionalized graphitic carbon nitride/magnetite composite nanofibers towards enhanced arsenic remediation: A mechanistic approach. J Colloid Interface Sci 2023; 640:890-907. [PMID: 36907149 DOI: 10.1016/j.jcis.2023.02.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 02/03/2023] [Accepted: 02/20/2023] [Indexed: 03/12/2023]
Abstract
Recently, novel composite materials are rapidly being explored for water treatment applications. However, their physicochemical behavior and mechanistic investigations are still a mystery. Therefore, our key prospect is to develop a highly stable mixed-matrix adsorbent system using polyacrylonitrile (PAN) support impregnated with amine-functionalized graphitic carbon nitride/magnetite (gCN-NH2/Fe3O4) composite nanofibers (PAN/gCN-NH2/Fe3O4: PCNFe) by simple electrospinning techniques. Various instrumental techniques were used to explore the structural, physicochemical, and mechanical behavior of the synthesized nanofiber. The developed PCNFe with a specific surface area of 39.0 m2/g was found to be non-aggregated and to have outstanding water dispersibility, abundant surface functionality, greater hydrophilicity, superior magnetic property, and higher thermal & mechanical characteristics making it favorable for rapid As removal. Based on the experimental findings from the batch study, 97.0 and 99.0 % of arsenite (As(III)) and arsenate (As(V)), respectively, could be adsorbed by utilizing0.02 g of adsorbent dosage within 60 min of contact time at pH 7 and 4, with an initial concentration of 10 mg/L. Adsorption of As(III) and As(V) followed the pseudo-second-order kinetic and Langmuir isotherm models with an sorption capacities of 32.26 and 33.22 mg/g, respectively, at ambient temperature. The adsorption was endothermic and spontaneous, in accordance with the thermodynamic study. Furthermore, the addition of co-anions in a competitive environment did not affect As adsorption except for PO43-. Moreover, PCNFe preserves its adsorption efficiency above 80 % after five regeneration cycles. The combined results of FTIR and XPS after adsorption further support the adsorption mechanism. Also, the composite nanostructures retain their morphological and structural integrity after the adsorption process. The facile synthesis protocol, high As adsorption capacity, and enhanced mechanical integrity of PCNFe foreshadow its huge prospects for real wastewater treatment.
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6
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Kawawaki T, Akinaga Y, Yazaki D, Kameko H, Hirayama D, Negishi Y. Promoting Photocatalytic Carbon Dioxide Reduction by Tuning the Properties of Cocatalysts. Chemistry 2023; 29:e202203387. [PMID: 36524615 PMCID: PMC10107262 DOI: 10.1002/chem.202203387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Suppressing the amount of carbon dioxide in the atmosphere is an essential measure toward addressing global warming. Specifically, the photocatalytic CO2 reduction reaction (CRR) is an effective strategy because it affords the conversion of CO2 into useful carbon feedstocks by using sunlight and water. However, the practical application of photocatalyst-promoting CRR (CRR photocatalysts) requires significant improvement of their conversion efficiency. Accordingly, extensive research is being conducted toward improving semiconductor photocatalysts, as well as cocatalysts that are loaded as active sites on the photocatalysts. In this review, we summarize recent research and development trends in the improvement of cocatalysts, which have a significant impact on the catalytic activity and selectivity of photocatalytic CRR. We expect that the advanced knowledge provided on the improvement of cocatalysts for CRR in this review will serve as a general guideline to accelerate the development of highly efficient CRR photocatalysts.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,Research Institute for Science & Technology, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yuki Akinaga
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Daichi Yazaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Hinano Kameko
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Daisuke Hirayama
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,Research Institute for Science & Technology, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
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7
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Kumari K, Choudhary P, Sharma D, Krishnan V. Amine-Functionalized Graphitic Carbon Nitride as a Sustainable Metal-free Catalyst for Knoevenagel Condensation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kamlesh Kumari
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
| | - Priyanka Choudhary
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
| | - Devendra Sharma
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
| | - Venkata Krishnan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
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8
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Khan J, Sun Y, Han L. A Comprehensive Review on Graphitic Carbon Nitride for Carbon Dioxide Photoreduction. SMALL METHODS 2022; 6:e2201013. [PMID: 36336653 DOI: 10.1002/smtd.202201013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Inspired by natural photosynthesis, harnessing the wide range of natural solar energy and utilizing appropriate semiconductor-based catalysts to convert carbon dioxide into beneficial energy species, for example, CO, CH4 , HCOOH, and CH3 COH have been shown to be a sustainable and more environmentally friendly approach. Graphitic carbon nitride (g-C3 N4 ) has been regarded as a highly effective photocatalyst for the CO2 reduction reaction, owing to its cost-effectiveness, high thermal and chemical stability, visible light absorption capability, and low toxicity. However, weaker electrical conductivity, fast recombination rate, smaller visible light absorption window, and reduced surface area make this catalytic material unsuitable for commercial photocatalytic applications. Therefore, certain procedures, including elemental doping, structural modulation, functional group adjustment of g-C3 N4 , the addition of metal complex motif, and others, may be used to improve its photocatalytic activity towards effective CO2 reduction. This review has investigated the scientific community's perspectives on synthetic pathways and material optimization approaches used to increase the selectivity and efficiency of the g-C3 N4 -based hybrid structures, as well as their benefits and drawbacks on photocatalytic CO2 reduction. Finally, the review concludes a comparative discussion and presents a promising picture of the future scope of the improvements.
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Affiliation(s)
- Javid Khan
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Adv. Mater. and Technology for Clean Energy, Hunan University, Changsha, 410082, China
| | - Yanyan Sun
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Lei Han
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Adv. Mater. and Technology for Clean Energy, Hunan University, Changsha, 410082, China
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9
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Synergizing n → π* electronic transition and plasmonic hot electron injection enhances carrier generation of S-doped carbon nitride decorated with Au nanoparticles for Cr(VI) degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121515] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Skorjanc T, Kamal KM, Alkhoori A, Mali G, Mohammed AK, Asfari Z, Polychronopoulou K, Likozar B, Trabolsi A, Shetty D. Polythiacalixarene-Embedded Gold Nanoparticles for Visible-Light-Driven Photocatalytic CO 2 Reduction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30796-30801. [PMID: 35713305 PMCID: PMC9284511 DOI: 10.1021/acsami.2c05606] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Metal nanoparticles are potent reaction catalysts, but they tend to aggregate, thereby limiting their catalytic efficiency. Their coordination with specific functional groups within a porous structure prevents their aggregation and facilitates the mass flow of catalytic starting materials and products. Herein, we use a thiacalix[4]arene-based polymer as a porous support with abundant docking sites for Au nanoparticles. The sulfur atoms bridging the phenolic subunits of thiacalix[4]arene serve as Lewis basic sites that coordinate Au atoms. Therefore, this approach takes advantage of the functional groups inherent in the monomer and avoids laborious postsynthetic modifications of the polymer. The presented system was tested for visible-light-driven photocatalytic CO2 reduction, where it showed adequate ability to generate 6.74 μmol g-1 CO over the course of 4 h, while producing small amounts of the CH4 product. This study aims to stimulate interest in the design and development of synthetically simpler porous polymer supports for various metal nanoparticles in catalytic and other applications.
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Affiliation(s)
- Tina Skorjanc
- Science
Division, New York University Abu Dhabi, Saadiyat Island, Abu Dhabi, United Arab Emirates
- Materials
Research Laboratory, University of Nova
Gorica, Vipavska 11c, 5270 Ajdovscina, Slovenia
| | | | - Ayesha Alkhoori
- Department
of Mechanical Engineering & Center for Catalysis and Separations
(CeCaS), Khalifa University, P.O. Box 127788 Abu Dhabi, United Arab Emirates
| | - Gregor Mali
- National
Institute of Chemistry, Hajdrihova 19, Ljubljana 1001, Slovenia
| | - Abdul Khayum Mohammed
- Department
of Chemistry & Center for Catalysis and Separations (CeCaS), Khalifa University, P.O.
Box 127788 Abu Dhabi, United Arab Emirates
| | - Zouhair Asfari
- Laboratoire
de Chimie Analytique et Sciences Séparatives, Institut Pluridisciplinaire Hubert Curien, 67087 Strasbourg Cedex, France
| | - Kyriaki Polychronopoulou
- Department
of Mechanical Engineering & Center for Catalysis and Separations
(CeCaS), Khalifa University, P.O. Box 127788 Abu Dhabi, United Arab Emirates
| | - Blaž Likozar
- National
Institute of Chemistry, Hajdrihova 19, Ljubljana 1001, Slovenia
| | - Ali Trabolsi
- Science
Division, New York University Abu Dhabi, Saadiyat Island, Abu Dhabi, United Arab Emirates
- NYUAD
Water Research Center, New York University
Abu Dhabi (NYUAD), Abu Dhab, Saadiyat Island, United
Arab Emirates
| | - Dinesh Shetty
- Department
of Chemistry & Center for Catalysis and Separations (CeCaS), Khalifa University, P.O.
Box 127788 Abu Dhabi, United Arab Emirates
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11
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A tube-like dual Z-scheme indium oxide@indium phosphide/cuprous oxide photocatalyst based on metal–organic framework for efficient CO2 reduction with water. J Colloid Interface Sci 2022; 616:532-539. [DOI: 10.1016/j.jcis.2022.02.101] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 12/24/2022]
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12
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Zhou Y, Wang W. Polydopamine Nanospheres-grafted-PDMAEMA Brushes/Au Composites as a Thermally Adjustable Catalyst for the Reduction of 4-nitrophenol. CHEM LETT 2022. [DOI: 10.1246/cl.220220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yumeng Zhou
- School of Materials Science and Chemical Engineering, Ningbo University, No.818, Fenghua Road, Ningbo 315211, China
| | - Wenqin Wang
- School of Materials Science and Chemical Engineering, Ningbo University, No.818, Fenghua Road, Ningbo 315211, China
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13
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Rosales Delgado S, Alzate Arbeláez AF, Zapata Acosta K, Cortés FB, Rojano BA. Improvement of probiotic viability through the design of novel biomaterials using coffee pulp wastes and Lactobacillus rhamnosus. FOOD SCI TECHNOL INT 2022:10820132221100683. [PMID: 35549737 DOI: 10.1177/10820132221100683] [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] [Indexed: 01/09/2023]
Abstract
The immobilization of bacteria cells has shown to be an efficient technology to improve cell viability. This study used lyophilized and pulverized coffee pulp (LPC) and LPC functionalized with theobromine at two concentrations, 3.1 w/w and 2.4 w/w named as LPF1 and LPF2, respectively, to immobilize Lactobacillus rhamnosus ATCC 53103 cells (biomaterials) and increase the viability of the cell at storage and gastrointestinal conditions. To characterize the biomaterials, SEM, Dynamic Light Scattering, TGA, , FTIR and Isoeletrc Point measurements (or zeta potential measurements) were carried out. To evaluate the effectiveness of immobilization, cell viability as a function of storage time and under simulated gastrointestinal conditions was evaluated. Regarding the characterization of the materials, the particle sizes were 21.7 to 334.4 nm and they experienced mass losses of less than 10% at 100°C. The FTIR indicated the presence of functional groups related to caffeine, chlorogenic acid, sucrose, arabinogalactans, carbohydrates, and proteins in all biomaterials. The sorption kinetic parameters showed an adsorptive capacity between 3.0 × 109 and 8.0 × 109 CFU.g-1, being LPF1 the best materials to immobilize the cells, associated with LPF1 surface properties. The viability was higher for immobilized cells than for free cells, when left in storage and under simulated gastric conditions. Finally, the biomaterials could be used in the preparation of probiotic diets based on lactobacilli. To the best of our knowledge, this is the first study regarding the use of waste from coffee agribusiness to develop probiotic biocarriers which opens up possibilities for future developments.
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Affiliation(s)
- Stephania Rosales Delgado
- Grupo Química de los Productos Naturales y los Alimentos, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Medellín, Medellín, Colombia
| | - Andrés Felipe Alzate Arbeláez
- Grupo Química de los Productos Naturales y los Alimentos, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Medellín, Medellín, Colombia
| | - Karol Zapata Acosta
- Grupo de Fenómenos de Superficie, Michael Polanyi, Departamento de Procesos y Energía, Facultad de Minas, Universidad Nacional de Colombia, Medellín, Colombia
| | - Farid B Cortés
- Grupo de Fenómenos de Superficie, Michael Polanyi, Departamento de Procesos y Energía, Facultad de Minas, Universidad Nacional de Colombia, Medellín, Colombia
| | - Benjamín A Rojano
- Grupo Química de los Productos Naturales y los Alimentos, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Medellín, Medellín, Colombia
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14
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Yu Z, Yue X, Fan J, Xiang Q. Crystalline Intramolecular Ternary Carbon Nitride Homojunction for Photocatalytic Hydrogen Evolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01563] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhihan Yu
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China
| | - Xiaoyang Yue
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, P. R. China
| | - Quanjun Xiang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China
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15
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Hao J, Liu B, Maenosono S, Yang J. One-pot synthesis of Au-M@SiO 2 (M = Rh, Pd, Ir, Pt) core-shell nanoparticles as highly efficient catalysts for the reduction of 4-nitrophenol. Sci Rep 2022; 12:7615. [PMID: 35538150 PMCID: PMC9091199 DOI: 10.1038/s41598-022-11756-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/28/2022] [Indexed: 12/15/2022] Open
Abstract
The conversion of p-nitrophenol (4-NP) to p-aminophenol (4-AP) is of great significance for pharmaceutical and material manufacturing. In this work, Au-M@SiO2 (M = Rh, Pd, Ir, Pt) nanoparticles (NPs) with core-shell structures, which are expected to be excellent catalysts for the transformation of 4-NP to 4-AP, were synthesized by a facile one-pot one-step method. The structure and composition of the NPs were characterized through transmission electron microscopy, X-ray powder diffraction and X-ray photoelectron spectroscopy. Au-M@SiO2 (M = Rh, Pd, Ir, Pt) core-shell NPs showed excellent catalytic activity in the reduction of 4-NP, which is superior to most catalysts reported in the previous literature. The enhanced catalytic activity of Au-M@SiO2 core-shell NPs is presumably related to the bimetallic synergistic effect. This study provides a simple strategy to synthesize core-shell bimetallic NPs for catalytic applications.
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Affiliation(s)
- Junfang Hao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, People's Republic of China
| | - Bin Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, People's Republic of China
| | - Shinya Maenosono
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan.
| | - Jianhui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, People's Republic of China.
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16
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Huang M, Chen C, Wang T, Sui Q, Zhang K, Li B. Cadmium-sulfide/gold/graphitic-carbon-nitride sandwich heterojunction photocatalyst with regulated electron transfer for boosting carbon-dioxide reduction to hydrocarbon. J Colloid Interface Sci 2022; 613:575-586. [DOI: 10.1016/j.jcis.2022.01.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/22/2021] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
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17
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Wang L, Zang L, Shen F, Wang J, Yang Z, Zhang Y, Sun L. Preparation of Cu modified g-C 3N 4 nanorod bundles for efficiently photocatalytic CO 2 reduction. J Colloid Interface Sci 2022; 622:336-346. [PMID: 35525137 DOI: 10.1016/j.jcis.2022.04.099] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/12/2022] [Accepted: 04/17/2022] [Indexed: 12/16/2022]
Abstract
Carbon nitride-based photocatalysts for CO2 reduction have received great attention. The introduction of transition metals can effectively improve the photocatalytic efficiency of carbon nitride. However, how to introduce transition metals into carbon nitride in more ways remains a challenge. Herein, the Cu modified g-C3N4 nanorod bundles (CCNBs) were prepared by chemical vapor co-deposition using the mixture of urea and chlorophyllin sodium copper salt as precursor. The prepared CCNBs exhibited excellent photocatalytic activity for CO2 reduction. The unique hierarchical structure was beneficial to enhance light harvesting. Besides, the introduction of uniformly dispersed Cu further improved the absorption capacity of visible light, increased active sites, and promoted the separation and transfer of carriers. The CO yield of CCNBs was 5 times higher than that of bulk g-C3N4, and showed excellent stability in cycle experiments. This work provides a strategy to prepare carbon nitride-based photocatalysts for efficient CO2 reduction.
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Affiliation(s)
- Libin Wang
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, PR China
| | - Linlin Zang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Fengtong Shen
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, PR China
| | - Jingzhen Wang
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, PR China
| | - Zhiyu Yang
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, PR China
| | - Yanhong Zhang
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, PR China.
| | - Liguo Sun
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, PR China.
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18
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Ma X, Tian J, Wang M, Shen M, Zhang L. Polymeric carbon nitride supported Bi nanoparticles as highly efficient CO 2 reduction electrocatalyst in a wide potential range. J Colloid Interface Sci 2022; 608:1676-1684. [PMID: 34742082 DOI: 10.1016/j.jcis.2021.10.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/27/2021] [Accepted: 10/11/2021] [Indexed: 01/24/2023]
Abstract
It is still a great challenge to develop electrocatalysts for CO2 reduction with high product selectivity and energy conversion efficiency. In this work, Bi nanoparticles supported on polymeric carbon nitride (Bi/CN) have been prepared for CO2 electrocatalytic conversion. Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analyses confirm the existence of Bi2O3 on Bi particle surface, forming Bi/Bi2O3 nanoparticles. CN, as the support, has been found not only to improve the dispersibility of Bi/Bi2O3 nanoparticles, but also to enhance the CO2 adsorption on Bi/CN surface owing to the existence of amino and cyano groups. The electronic structure of Bi/CN has been optimized by the interaction between CN and Bi: the electron transfer from Bi to CN results in electron-deficient Bi sites which stabilize CO2-, HCOO- intermediates and accelerate the formation rate of HCOOH. As a result, the maximum Faradaic efficiency of HCOOH reaches 98% at -1.3 to -1.5 V versus reversible hydrogen electrode (vs. RHE) and remains over 91% in a wide potential window of about 500 mV (-1.1 ∼ -1.6 V vs. RHE). The as-obtained Bi/CN in this work shows superior performance to most of the previously reported Bi-based electrocatalysts.
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Affiliation(s)
- Xia Ma
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China
| | - Jianjian Tian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China
| | - Min Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China
| | - Meng Shen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China
| | - Lingxia Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China; School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, PR China.
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19
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Ezendam S, Herran M, Nan L, Gruber C, Kang Y, Gröbmeyer F, Lin R, Gargiulo J, Sousa-Castillo A, Cortés E. Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction. ACS ENERGY LETTERS 2022; 7:778-815. [PMID: 35178471 PMCID: PMC8845048 DOI: 10.1021/acsenergylett.1c02241] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/07/2022] [Indexed: 05/05/2023]
Abstract
The successful development of artificial photosynthesis requires finding new materials able to efficiently harvest sunlight and catalyze hydrogen generation and carbon dioxide reduction reactions. Plasmonic nanoparticles are promising candidates for these tasks, due to their ability to confine solar energy into molecular regions. Here, we review recent developments in hybrid plasmonic photocatalysis, including the combination of plasmonic nanomaterials with catalytic metals, semiconductors, perovskites, 2D materials, metal-organic frameworks, and electrochemical cells. We perform a quantitative comparison of the demonstrated activity and selectivity of these materials for solar fuel generation in the liquid phase. In this way, we critically assess the state-of-the-art of hybrid plasmonic photocatalysts for solar fuel production, allowing its benchmarking against other existing heterogeneous catalysts. Our analysis allows the identification of the best performing plasmonic systems, useful to design a new generation of plasmonic catalysts.
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Affiliation(s)
- Simone Ezendam
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Matias Herran
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Lin Nan
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Christoph Gruber
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Yicui Kang
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Franz Gröbmeyer
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Rui Lin
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Julian Gargiulo
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Ana Sousa-Castillo
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Emiliano Cortés
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
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20
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Wang Q, Jin Y, Zhang Y, Li Y, Wang X, Cao X, Wang B. Polyvinyl pyrrolidone-coordinated ultrathin bismuth oxybromide nanosheets for boosting photoreduction of carbon dioxide via ligand-to-metal charge transfer. J Colloid Interface Sci 2022; 606:1087-1100. [PMID: 34507164 DOI: 10.1016/j.jcis.2021.08.116] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/15/2021] [Accepted: 08/16/2021] [Indexed: 12/23/2022]
Abstract
Photoreduction of CO2 to useful ingredients remains a great challenge due to the high energy barrier of CO2 activation and poor product selectivity. Herein, Polyvinyl pyrrolidone (PVP) coordinated BiOBr was synthesized by a facile chemical precipitation method at room temperature. The CO2 photoreduction behaviors of PVP coordinated BiOBr were evaluated with H2O without sacrificial agent under the simulated sunlight. The evolution rates of CO and CH4 are 263.2 µmol g-1h-1 and 3.3 µmol g-1h-1, which are 8 times and 2 times higher than those of pure BiOBr respectively. Furthermore, the coordination of PVP on BiOBr surface enhances greatly the selectivity of product CO, which is close to 100%. Loading PVP onto BiOBr could not only induce and stabilize the oxygen vacancy, but also increase the charge density of BiOBr via the ligand to metal charge transfer (LMCT), which could be beneficial to the adsorption and activation of CO2 molecule. The photoreduction mechanism of CO2 for PVP coordinated BiOBr was proposed based on the improved charge density of BiOBr by the experimental results and Density functional theory (DFT) calculations. This finding provides a new pathway to boost the conversion efficiency and selectivity for the activation of CO2 photoreduction and new molecule insights into the role of PVP in photocatalysis.
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Affiliation(s)
- Qingli Wang
- National Demonstration Center for Experimental Chemistry Education,Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Yuhan Jin
- National Demonstration Center for Experimental Chemistry Education,Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Yanfeng Zhang
- National Demonstration Center for Experimental Chemistry Education,Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, PR China.
| | - Yuxian Li
- College of Physics,Hebei Normal University, Shijiazhuang 050024, PR China.
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, Fuzhou 350108, PR China.
| | - Xingzhong Cao
- Multi-discipline Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Baoyi Wang
- Multi-discipline Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
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21
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Pachaiappan R, Rajendran S, Senthil Kumar P, Vo DVN, K.A. Hoang T. A review of recent progress on photocatalytic carbon dioxide reduction into sustainable energy products using carbon nitride. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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22
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Guan C, Yue X, Fan J, Xiang Q. MXene quantum dots of Ti3C2: Properties, synthesis, and energy-related applications. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64102-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Wang Q, Fang Z, Zhao X, Dong C, Li Y, Guo C, Liu Q, Song F, Zhang W. Biotemplated g-C 3N 4/Au Periodic Hierarchical Structures for the Enhancement of Photocatalytic CO 2 Reduction with Localized Surface Plasmon Resonance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59855-59866. [PMID: 34878761 DOI: 10.1021/acsami.1c16811] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is a promising photocatalyst for CO2 reduction to alleviate the greenhouse effect. However, the low light absorption, small specific surface area, and rapid charge recombination limit the photocatalytic efficiency of g-C3N4. Herein, we demonstrate a bioinspired nanoarchitecturing strategy to significantly improve the light harvesting and charge separation of the g-C3N4/Au composite, as proven by the remarkable photocatalytic CO2 reduction. Specifically, a biotemplating approach is employed to transfer the sophisticated hierarchical structures and the related light-harvesting functionality of Troides helena butterfly wings to the g-C3N4/Au composite. The resulting g-C3N4/Au composite shows high photocatalytic efficiency under UV-visible excitation with triethanolamine as the sacrificial agent. The yields of CO and CH4 are 331.57 and 39.71 μmol/g/h, respectively, which are ∼36 times and ∼88 times that of pure g-C3N4 under the same conditions. Detailed experiments and the finite-difference time-domain method suggest that the superb photocatalytic activity should be ascribed to the unique periodic hierarchical structure which assists the light absorption and the localized surface plasmon resonance for promoted charge separation in addition to the more effective CO2 diffusion and larger specific surface area. Our work provides a new path for the design and optimization of photocatalysts based on biological structures that are usually unattainable artificially.
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Affiliation(s)
- Qingtong Wang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Zixi Fang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Xinkun Zhao
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Changlin Dong
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Yao Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Cuiping Guo
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Qinglei Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Fang Song
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Wang Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
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24
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Cheng L, Yue X, Wang L, Zhang D, Zhang P, Fan J, Xiang Q. Dual-Single-Atom Tailoring with Bifunctional Integration for High-Performance CO 2 Photoreduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105135. [PMID: 34622513 DOI: 10.1002/adma.202105135] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Single-atom photocatalysis has been demonstrated as a novel strategy to promote heterogeneous reactions. There is a diversity of monoatomic metal species with specific functions; however, integrating representative merits into dual-single-atoms and regulating cooperative photocatalysis remain a pressing challenge. For dual-single-atom catalysts, enhanced photocatalytic activity would be realized through integrating bifunctional properties and tuning the synergistic effect. Herein, dual-single-atoms supported on conjugated porous carbon nitride polymer are developed for effective photocatalytic CO2 reduction, featuring the function of cobalt (Co) and ruthenium (Ru). A series of in situ characterizations and theoretical calculations are conducted for quantitative analysis of structure-performance correlation. It is concluded that the active Co sites facilitate dynamic charge transfer, while the Ru sites promote selective CO2 surface-bound interaction during CO2 photoreduction. The combination of atom-specific traits and the synergy between Co and Ru lead to the high photocatalytic CO2 conversion with corresponding apparent quantum efficiency (AQE) of 2.8% at 385 nm, along with a high turnover number (TON) of more than 200 without addition of any sacrificial agent. This work presents an example of identifying the roles of different single-atom metals and regulating the synergy, where the two metals with unique properties collaborate to further boost the photocatalytic performance.
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Affiliation(s)
- Lei Cheng
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
| | - Xiaoyang Yue
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
| | - Linxi Wang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Dainan Zhang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Peng Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Quanjun Xiang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
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25
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Oseghe EO, Akpotu SO, Mombeshora ET, Oladipo AO, Ombaka LM, Maria BB, Idris AO, Mamba G, Ndlwana L, Ayanda OS, Ofomaja AE, Nyamori VO, Feleni U, Nkambule TT, Msagati TA, Mamba BB, Bahnemann DW. Multi-dimensional applications of graphitic carbon nitride nanomaterials – A review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117820] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Zhao B, Gao D, Liu Y, Fan J, Yu H. Cyano group-enriched crystalline graphitic carbon nitride photocatalyst: Ethyl acetate-induced improved ordered structure and efficient hydrogen-evolution activity. J Colloid Interface Sci 2021; 608:1268-1277. [PMID: 34739990 DOI: 10.1016/j.jcis.2021.10.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/16/2021] [Accepted: 10/18/2021] [Indexed: 02/01/2023]
Abstract
The molten salt-assisted route is one of the most important methods to improve the crystallinity of conventionally disordered bulk graphitic carbon nitride (g-C3N4). However, the residual potassium ions from potassium chloride/lithium chloride molten salt can greatly impact the ordered structure of g-C3N4 and serve as the recombination centers of photoinduced carriers, causing limited photocatalytic hydrogen-evolution performance. In this article, the ethyl acetate-mediated method is first developed to not only further improve the ordered structure of traditional crystalline g-C3N4, but also produce more cyano groups for preparing highly efficient g-C3N4 photocatalysts. Herein, the ethyl acetate can gradually hydrolyze to produce hydrogen ions, which can promote the more ordered sheet-like structure and more cyano groups by effective removal of residual potassium ions in the traditional crystalline g-C3N4, leading to the formation of cyano group-enriched crystalline g-C3N4 photocatalysts (CC-CN). As a result, the resultant CC-CN displays the remarkably enhanced photocatalytic hydrogen-evolution performance (295.30 µmol h-1 with an apparent quantum efficiency about 12.61%), in comparison to the bulk g-C3N4 (14.97 µmol h-1) and traditional crystalline g-C3N4 (24.60 µmol h-1). The great improvement of photocatalytic performance can mainly be ascribed to the synergism of improved ordered structure and abundant cyano groups, namely, the efficient transfer and separation of photoinduced charges as well as excellent interfacial hydrogen-generation reaction, respectively. The present work may deliver new strategies to prepare other high-crystalline photocatalysts with great efficiency.
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Affiliation(s)
- Binbin Zhao
- State Key Laboratory of Silicate Materials for Architectures and School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Duoduo Gao
- State Key Laboratory of Silicate Materials for Architectures and School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Yongping Liu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China.
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, PR China
| | - Huogen Yu
- State Key Laboratory of Silicate Materials for Architectures and School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China.
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27
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Pan X, Bai L, Pan C, Liu Z, Ramakrishna S. Design, Fabrication and Applications of Electrospun Nanofiber-Based Surface-Enhanced Raman Spectroscopy Substrate. Crit Rev Anal Chem 2021; 53:289-308. [PMID: 34284659 DOI: 10.1080/10408347.2021.1950522] [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] [Indexed: 02/08/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is an advanced and powerful analysis tool. Due to the advantages of high sensitivity, high resolution, and nondestructive testing, it has been widely used in physics, chemistry, material science and other fields. In recent years, substantial progress has been made in developing flexible platforms for the design and fabrication of SERS substrates. One important kind of the flexible platforms is based on electrospun nanofibers. Electrospun nanofibers not only have unique advantages such as easy preparation, high porosity and large specific surface area, but also can increase the number of hotspots when combined with precious metal nanomaterials, thereby enhancing the SERS signal and expanding the application scope. In this review, we firstly focus on two strategies for the fabrication of metal nanostructure decorated in/on the electrospun nanofibers, namely in-situ and ex-situ. Then the applications of these SERS substrates in the fields of quantitative analysis, monitoring chemical reactions and recyclable detection are introduced in detail. Finally, the challenges as well as perspectives are presented to offer a guideline for the future exploration of these SERS substrates. We expect that it will provide new inspiration for the development of electrospun nanofiber-based SERS substrates.
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Affiliation(s)
- Xue Pan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China
| | - Lu Bai
- Institute for Chemical Biology & Biosensing, and College of Life Sciences, Qingdao University, Qingdao, China
| | - Chengcheng Pan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China
| | - Zhicheng Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China.,Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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28
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Song X, Zhang X, Wang M, Li X, Zhu Z, Huo P, Yan Y. Fabricating intramolecular donor-acceptor system via covalent bonding of carbazole to carbon nitride for excellent photocatalytic performance towards CO 2 conversion. J Colloid Interface Sci 2021; 594:550-560. [PMID: 33774411 DOI: 10.1016/j.jcis.2021.02.105] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/23/2021] [Accepted: 02/23/2021] [Indexed: 11/28/2022]
Abstract
Photocatalytic conversion of CO2 into hydrocarbon fuels is an ideal technology of mitigating greenhouse effect caused by excessive emission of CO2. However, the high recombination rate of electron-hole pairs and limited charge carriers transport speed constrained the catalytic performance of many semiconductor catalysts. In this contribution, a series of carbon nitride (g-CN) samples with intramolecular donor-acceptor (D-A) system were successfully prepared by introducing organic donor into their structures. Characterization results confirmed that carbazole was successful connected to the structure of g-CN via chemical bond. The formation of intramolecular D-A system greatly enlarged the light response region of g-CN-xDbc. In addition, a new charge transfer transition mode was formed in g-CN-0.01Dbc due to the incorporation carbazole, which enable it to use light with energy lower than the intrinsic absorption of g-CN. Meanwhile, the D-A structure led to the spatial separation of electrons and holes in g-CN-xDbc and significantly decreased the recombination rate of electron-hole pairs. The g-CN-0.01Dbc presented the best catalytic performance and the CO evolution rate was 9.6 times higher than that of g-CN. Moreover, the reaction was performed in water without any additive, which made it green and sustainable. DFT simulation confirmed the D-A structure and charge carrier migration direction in the prepared samples.
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Affiliation(s)
- Xianghai Song
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xinyu Zhang
- College of Science, Beihua University, Jilin 132013, PR China
| | - Mei Wang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xin Li
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhi Zhu
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Pengwei Huo
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Yongsheng Yan
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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29
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Yue T, Huang H, Chang Y, Jia J, Jia M. Controlled assembly of nitrogen-doped iron carbide nanoparticles on reduced graphene oxide for electrochemical reduction of carbon dioxide to syngas. J Colloid Interface Sci 2021; 601:877-885. [PMID: 34116474 DOI: 10.1016/j.jcis.2021.05.164] [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: 03/30/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 01/28/2023]
Abstract
The electrocatalytic CO2 reduction reaction (CO2RR) decreases the amount of greenhouse gas in the atmosphere while enabling a closed carbon cycle. Herein, iron oleate was used as a precursor to produce oleic acid-coated triiron tetraoxide nanoparticles (Fe3O4@OA NPs) by pyrolysis, which was then assembled with reduced graphene oxide (rGO) and doped with dicyandiamide as a nitrogen source to obtain nitrogen-doped iron carbide nanoparticles assembled on rGO (N-Fe3C/rGO NPs). The catalyst prepared by nitrogen doping at 800 °C with an Fe3O4@OA NPs to rGO weight ratio of 20:1 showed good activity and stability for the CO2RR. At -0.3 to -0.4 V, the H2/CO ratio of the product from the catalyzed CO2RR was close to 2; thus, the product can be used for Fischer-Tropsch synthesis. The results of a series of experiments and X-ray photoelectron spectroscopy analysis showed that the synergy between the CN and FeN groups in the catalyst can promote the reduction of CO2 to CO. This work demonstrates a facile method for improving the catalytic reduction of CO2.
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Affiliation(s)
- Tingting Yue
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis and Inner Mongolia Collaborative Innovation Center for Water Environment Safety, Inner Mongolia Normal University, Hohhot 010022, China
| | - Haitao Huang
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis and Inner Mongolia Collaborative Innovation Center for Water Environment Safety, Inner Mongolia Normal University, Hohhot 010022, China
| | - Ying Chang
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis and Inner Mongolia Collaborative Innovation Center for Water Environment Safety, Inner Mongolia Normal University, Hohhot 010022, China; Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China.
| | - Jingchun Jia
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis and Inner Mongolia Collaborative Innovation Center for Water Environment Safety, Inner Mongolia Normal University, Hohhot 010022, China.
| | - Meilin Jia
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis and Inner Mongolia Collaborative Innovation Center for Water Environment Safety, Inner Mongolia Normal University, Hohhot 010022, China.
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30
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Zhou Y, ElMetwally AE, Chen J, Shi W, Cilingir EK, Walters B, Mintz KJ, Martin C, Ferreira BCLB, Zhang W, Hettiarachchi SD, Serafim LF, Blackwelder PL, Wikramanayake AH, Peng Z, Leblanc RM. Gel-like carbon dots: A high-performance future photocatalyst. J Colloid Interface Sci 2021; 599:519-532. [PMID: 33964697 DOI: 10.1016/j.jcis.2021.04.121] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023]
Abstract
To protect water resources, halt waterborne diseases, and prevent future water crises, photocatalytic degradation of water pollutants arouse worldwide interest. However, considering the low degradation efficiency and risk of secondary pollution displayed by most metal-based photocatalysts, highly efficient and environmentally friendly photocatalysts with appropriate band gap, such as carbon dots (CDs), are in urgent demand. In this study, the photocatalytic activity of gel-like CDs (G-CDs) was studied using diverse water pollution models for photocatalytic degradation. The degradation rate constants demonstrated a remarkably enhanced photocatalytic activity of G-CDs compared with most known CD species and comparability to graphitic carbon nitride (g-C3N4). In addition, the rate constant was further improved by 1.4 times through the embedment of g-C3N4 in G-CDs to obtain CD-C3N4. Significantly, the rate constant was also higher than that of g-C3N4 alone, revealing a synergistic effect. Moreover, the use of diverse radical scavengers suggested that the main contributors to the photocatalytic degradation with G-CDs alone were superoxide radicals (O2-) and holes that were, however, substituted by O2- and hydroxyl radicals (OH) due to the addition of g-C3N4. Furthermore, the photocatalytic stabilities of G-CDs and CD-C3N4 turned out to be excellent after four cycles of dye degradation were performed continuously. Eventually, the nontoxicity and environmental friendliness of G-CDs and CD-C3N4 were displayed with sea urchin cytotoxicity tests. Hence, through various characterizations, photocatalytic degradation and cytotoxicity tests, G-CDs proved to be an environmentally friendly and highly efficient future photocatalyst.
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Affiliation(s)
- Yiqun Zhou
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Ahmed E ElMetwally
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA; Petrochemicals Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Jiuyan Chen
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Wenquan Shi
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Emel K Cilingir
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Brian Walters
- Department of Biology, University of Miami, Coral Gables, FL 33146, USA
| | - Keenan J Mintz
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Christian Martin
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | | | - Wei Zhang
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | | | - Leonardo F Serafim
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Patricia L Blackwelder
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA; MGS/RSMAS, University of Miami, Key Biscayne, FL 33149, USA
| | | | - Zhili Peng
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, Yunnan 650091, People's Republic of China.
| | - Roger M Leblanc
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
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31
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Baran T, Akay S, Kayan B. Fabrication of Palladium Nanoparticles Supported on Natural Volcanic Tuff/Fe3O4 and Its Catalytic Role in Microwave-Assisted Suzuki–Miyaura Coupling Reactions. Catal Letters 2021. [DOI: 10.1007/s10562-020-03378-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Jiao Y, Li Y, Wang J, He Z, Li Z. Novel B-N-Co surface bonding states constructed on hollow tubular boron doped g-C 3N 4/CoP for enhanced photocatalytic H 2 evolution. J Colloid Interface Sci 2021; 595:69-77. [PMID: 33819693 DOI: 10.1016/j.jcis.2021.03.134] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 10/21/2022]
Abstract
Graphitic carbon nitride (g-C3N4) is a promising photocatalyst for water hydrogen evolution. Nonetheless, fast recombination of photogenerated electron-hole pairs and the slow kinetics of hydrogen production result in the unsatisfactory efficiency of solar hydrogen production. we address this issue by anchoring the cobalt phosphide (CoP) cocatalyst onto the one-dimensional boron doped g-C3N4 nanotube (B-CNNT) to construct B-N-Co surface bonding states in the B-CNNT/CoP photocatalyst. Spectroscopic measurement and density functional theory (DFT) calculations demonstrated that the B-N-Co bonds optimize the local electronic distribution of bonded Co and adjacent P atoms, strengthen the electrons' delocalization capacity of Co atoms for high electrical conductivity and accelerate the photogenerated carrier transfer between B-CNNT and CoP, which lead to the enhanced photocatalytic activity of the B-CNNT/CoP photocatalyst for hydrogen evolution. B-CNNT/CoP-2.45% achieved a remarkable photocatalytic hydrogen production rate of 784 μmol g-1h-1 with an apparent quantum efficiency of 5.32% at 420 nm, which is significantly higher than demonstrated by CNNT/CoP-2.45% (153 μmol g-1h-1). Our findings provide insights into as well as establish theoretical and practical grounds for the development of low-cost, high-performance photocatalytic materials for hydrogen evolution.
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Affiliation(s)
- Yingying Jiao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yike Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China
| | - Jianshe Wang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China.
| | - Zhanhang He
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China
| | - Zhongjun Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China
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33
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Yuan S, Zhang M, Lan X, Shi J. DMAP molecule grafting on a carbon nitride heptazine ring for the better degradation of pollutants – the synergy of electron withdrawing and steric hindrance effects. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01780b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphitic carbon nitride (CN) is a promising candidate for use in photocatalytic pollutant degradation, but it only shows moderate activity because of its sluggish photocarrier transfer and insufficient light absorption.
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Affiliation(s)
- Shaoteng Yuan
- Qingdao Agricultural University, Department of Chemistry and Pharmacy, Chengyang District, Qingdao, China
| | - Minghui Zhang
- Qingdao Agricultural University, Department of Chemistry and Pharmacy, Chengyang District, Qingdao, China
| | - Xuefang Lan
- Qingdao Agricultural University, Department of Chemistry and Pharmacy, Chengyang District, Qingdao, China
| | - Jinsheng Shi
- Qingdao Agricultural University, Department of Chemistry and Pharmacy, Chengyang District, Qingdao, China
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34
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Qi Y, Chen Y, Wang R, Wang L, Zhang F, Shen Q, Qu P, Liu D. Zinc-Deficiency Induced g-C3N4 Nanosheets: Photocatalytic Nitrogen Fixation Study and Carrier Dynamics. Catal Letters 2020. [DOI: 10.1007/s10562-020-03415-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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35
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Chen J, Zhou Y, Wang W. Spontaneous Growth of Au Microflowers on Poly( N-isopropylacrylamide) Brushes-grafted-Graphene Oxide Films for Surface-enhanced Raman Spectroscopy. CHEM LETT 2020. [DOI: 10.1246/cl.200468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jiajun Chen
- School of Materials Science and Chemical Engineering, Ningbo University, No. 818, Fenghua Road, Ningbo 315211, P. R. China
| | - Yumeng Zhou
- School of Materials Science and Chemical Engineering, Ningbo University, No. 818, Fenghua Road, Ningbo 315211, P. R. China
| | - Wenqin Wang
- School of Materials Science and Chemical Engineering, Ningbo University, No. 818, Fenghua Road, Ningbo 315211, P. R. China
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36
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Roy S. Tale of Two Layered Semiconductor Catalysts toward Artificial Photosynthesis. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37811-37833. [PMID: 32805975 DOI: 10.1021/acsami.0c11245] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The ever-increasing reliance on nonrenewable fossil fuels due to massive urbanization and industrialization created problems such as depletion of the primary feedstock and raised the atmospheric CO2 levels causing global warming. A smart and promising approach is artificial photosynthesis that photocatalytically valorizes CO2 into high-value chemicals. The inexpensive layered semiconductors like g-C3N4 and rGO or GO have the potential to make the process practically feasible for real applications. The suitable band positions with respect to the reduction potentials coupled with the typical surface properties of these layered semiconductors play a beneficial role in photoreduction of CO2. Additionally, the creation of heterojunction interfaces to achieve the Z-scheme by anchoring g-C3N4 and rGO with another semiconductor with proper band alignment and dispersing plasmonic nano metals to obtain Schottky barriers on the layered surfaces also help retarding the electron-hole recombination and boost up the catalytic efficacy. Extensive exploration happened in recent years toward artificial photosynthesis over these materials, which needs a critical compendium. Surprisingly, in spite of the recent explosion of studies on photocatalytic reduction of CO2 over metal-free semiconductors, there is not a single review on comparing the mechanistic aspects of photoreduction of CO2 over the layered semiconductors g-C3N4 and rGO. This review stands out as a unique documentation, where the mechanism of photocatalytic reduction of CO2 over this set of materials is critically examined in the context of band and surface modifications. An overall conclusion and outlook at the end indicates the need to develop prototypes for artificial photosynthesis with these well-studied semiconducting layered materials to yield solar fuels.
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Affiliation(s)
- Sounak Roy
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad 500078, India
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37
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Li Y, Li B, Zhang D, Cheng L, Xiang Q. Crystalline Carbon Nitride Supported Copper Single Atoms for Photocatalytic CO 2 Reduction with Nearly 100% CO Selectivity. ACS NANO 2020; 14:10552-10561. [PMID: 32806072 DOI: 10.1021/acsnano.0c04544] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Single metal atom photocatalysts have received widespread attention due to the rational use of metal resources and maximum atom utilization efficiency. In particular, N-rich amorphous g-C3N4 is always used as a support to anchor single metal atoms. However, the enhancement of photocatalytic activity of g-C3N4 by introducing a single atom is limited due to the bulk morphology and the excess defects of amorphous g-C3N4. Here, we report crystalline g-C3N4 nanorod supported copper single atoms by molten salts and the reflux method. The prepared single Cu atoms/crystalline g-C3N4 photocatalyst (Cu-CCN) shows highly selective and efficient photocatalytic reduction of CO2 under the absence of any cocatalyst or sacrificial agent. The introduction of single Cu atoms can be used as the CO2 adsorption site, thus increasing the adsorption capacity of Cu-CCN samples to CO2. Theoretical calculation results show that reducing CO2 to CH4 on Cu-CCN samples is an entropy-increasing process, whereas reducing CO2 to CO is an entropy-decreasing process. As a result, the Cu-CCN samples exhibited enhanced photocatalytic CO2 reduction with nearly 100% selective photocatalytic CO2 to CO conversion. The mechanism of photocatalytic CO2 reduction over Cu-CCN samples was proposed based on in situ Fourier transform infrared spectra, X-ray absorption spectroscopy, and density functional theory calculation. This work provides an in-depth understanding of the design of photocatalysts for enhancing active sites of the reactants.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Baihai Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
| | - Dainan Zhang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
| | - Lei Cheng
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
| | - Quanjun Xiang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
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