1
|
Fan Y, Wang J, Qian S, Xue H, Tian J, Jiang T. Assembling carbon nitride quantum dots into hollow fusiformis and loading CoP for photocatalytic hydrogen evolution. J Colloid Interface Sci 2024; 667:128-135. [PMID: 38631251 DOI: 10.1016/j.jcis.2024.04.066] [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: 01/08/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
The self-assembled carbon nitride quantum dots (CNQDs) has been largely advanced owing to the structure-relative photocatalytic activities, especially its electronic structure, which can be regulated by defects, functional groups, and doping. However, there are still issues such as wide band gaps for the assembles and severe recombination of photoinduced charges. Herein, we demonstrate the self-assembly of CNQDs into fusiform hollow superstructures (CNFHs), induced by hydrogen bonding between the terminal functional groups (-OH, -COOH, and -NH2). During the top-down assembly process, the hydrogen bonding dominates and initiates lateral cross-linking between adjacent CNQDs, which further twist into fusiform hollow structures. Benefitted greatly from the ultrathin and hollow nature of the superstructure that provides more exposed active sites, coupled with the introduction of phosphorus doping atoms into the framework induced narrowed band gap, CNFHs exhibits an 18-fold higher activity than the bulk counterpart toward photocatalytic hydrogen evolution after loading the CoP co-catalyst. This work presents a new platform to design and manipulate carbon nitride superstructures.
Collapse
Affiliation(s)
- Yu Fan
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People's Republic of China
| | - Junhua Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People's Republic of China
| | - Sheng Qian
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People's Republic of China
| | - Huaiguo Xue
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People's Republic of China
| | - Jingqi Tian
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People's Republic of China
| | - Tengfei Jiang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People's Republic of China.
| |
Collapse
|
2
|
Zhang S, An C, Zhang R, Kong D, Xu D, Zhang S. Template-Free Synthesis of Boron-Doped Graphitic Carbon Nitride Porous Nanotubes for Enhanced Photocatalytic Hydrogen Evolution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6453-6462. [PMID: 38466076 DOI: 10.1021/acs.langmuir.3c04029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The photocatalytic activity of g-C3N4 can be enhanced by improving photoinduced carrier separation and exposing sufficient reactive sites. In this study, we synthesized B-doped porous tubular g-C3N4 (BCNT) using a H3BO3-assisted supramolecular self-template method, wherein H3BO3 helped in B-doping, building a porous structure, and maintaining one-dimensional nanotubes. The tubular structure had an ultrathin tube wall and large aspect ratio, which are conducive to the directional transmission and separation of photogenerated carriers; moreover, the abundant pore structure of the tube wall could fully expose the reactive sites. The introduction of B and the cyano group modulated the bandgap of g-C3N4 and elevated the position of the conduction band, thus enhancing the photoreduction ability and effectively improving the hydrogen evolution performance. Consequently, the hydrogen evolution of BCNT-2 (220.8, 53.2 μmol·h-1) was 1.82 and 1.54 times that of ultrathin g-C3N4 nanosheets (CNN, 121.3, 34.6 μmol·h-1) under simulated sunlight and LED lamp irradiation, respectively. Thus, this work provides in-depth insights into the rational design of one-dimensional g-C3N4 nanotubes with high hydrogen evolution activity under visible irradiation.
Collapse
Affiliation(s)
- Shumin Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha Hunan Province 410022, People's Republic of China
| | - Changsheng An
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha Hunan Province 410022, People's Republic of China
| | - Rongchao Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha Hunan Province 410022, People's Republic of China
| | - Dezhi Kong
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha Hunan Province 410022, People's Republic of China
| | - Difa Xu
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha Hunan Province 410022, People's Republic of China
| | - Shiying Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha Hunan Province 410022, People's Republic of China
| |
Collapse
|
3
|
Lin J, Wu Q, Qiao J, Zheng S, Liu W, Wu L, Liu J, Zeng Z. A review on composite strategy of MOF derivatives for improving electromagnetic wave absorption. iScience 2023; 26:107132. [PMID: 37456858 PMCID: PMC10338214 DOI: 10.1016/j.isci.2023.107132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
To address the electromagnetic wave (EMW) pollution issues caused by the development of electronics and wireless communication technology, it is urgent to develop efficient EMW-absorbing materials. With controllable composition, diverse structure, high porosity, and large specific surface area, metal-organic framework (MOF) derivatives have sparked the infinite passion and creativity of researchers in the electromagnetic field. Against the challenges of poor inherent impedance matching and insufficient attenuation capability of pure MOF derivative, designing and developing MOF derivative-based composites by compounding MOF with other materials, such as graphene, CNTs, MXene, and so on, has been an effective strategy for constructing high-efficiency EMW absorbing materials. This review systematically expounds the research progress of MOF derivative-based composite strategies, and discusses the challenges and opportunities faced by MOF derivatives in the field of EMW absorption. This work can provide some good ideas for researchers to design and prepare high-efficiency MOF-based EMW absorbing materials in applications of next-generation electronics and aerospace.
Collapse
Affiliation(s)
- Jingpeng Lin
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Qilei Wu
- Science and Technology on Electromagnetic Compatibility Laboratory, China Ship Development and Design Centre, Wuhan 430064, PR China
| | - Jing Qiao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Sinan Zheng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Wei Liu
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
- Shenzhen Research Institute of Shandong University, Shenzhen 518063, PR China
| | - Lili Wu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Jiurong Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Zhihui Zeng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
- Suzhou Research Institute of Shandong University, Suzhou 215123, PR China
| |
Collapse
|
4
|
Zhang X, Matras-Postolek K, Yang P, Ping Jiang S. Z-scheme WOx/Cu-g-C 3N 4 heterojunction nanoarchitectonics with promoted charge separation and transfer towards efficient full solar-spectrum photocatalysis. J Colloid Interface Sci 2023; 636:646-656. [PMID: 36680955 DOI: 10.1016/j.jcis.2023.01.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
Construction of Z-scheme heterojunctions has been considered one superb method in promoting solar-assisted charge carrier separation of carbon-based materials to achieve efficient utilization of solar energy in hydrogen production and CO2 reduction. One interesting concept in nanofabrication that has become trend recent years is nanoarchitectonics. A heterostructure photocatalyst constructed based on the idea of nanoarchitectonics using the combination of g-C3N4, metal and an additional semiconducting nanocomposite is investigated in this paper. Z-scheme tungsten oxide incorporated copper modified graphitic carbon nitride (WOx/Cu-g-C3N4) heterostructures are fabricated via immobilization of WOx on Cu nanoparticles modified superior thin g-C3N4 nanosheets. Mechano-chemical pre-reaction and a two-step high-temperature thermal polymerization process are the keys in attaining homogeneous distribution of Cu nanoparticles in g-C3N4 nanosheets. The horizontal growth of homogeneously distributed WOx nanobelts on Cu modified g-C3N4 (Cu-g-C3N4) base via solvothermal synthesis is achieved. The photocatalytic performances of the heterostructures are evaluated through water splitting and CO2 photoreduction measurements in full solar spectrum irradiation condition. The presence of Cu nanoparticles in the composite system improves charge transport between g-C3N4 and WOx and thus enhances the photocatalytic performances (H2 generation and CO2 photoreduction) of the composite material, while the presence of WOx nanocomposites enhances light absorption of the composite material in the near infrared range. The synthesized heterostructure with optimized WOx to Cu-g-C3N4 ratio and in case of no co-catalyst addition exhibits enhanced photocatalytic H2 evolution (4560 μmolg-1h-1) as well as excellent CO2 reduction rate (5.89 μmolg-1h-1 for CO generation).
Collapse
Affiliation(s)
- Xiao Zhang
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Krakow, Poland
| | | | - Ping Yang
- School of Material Science & Engineering, University of Jinan, Jinan 250022, PR China.
| | - San Ping Jiang
- WA School of Mines: Mineral, Energy and Chemical Engineering, Curtin University, Perth, WA 6845, Australia.
| |
Collapse
|
5
|
Shang Y, Wang C, Yan C, Jing F, Roostaeinia M, Wang Y, Chen G, Lv C. An efficient and multifunctional S-scheme heterojunction photocatalyst constructed by tungsten oxide and graphitic carbon nitride: Design and mechanism study. J Colloid Interface Sci 2023; 634:195-208. [PMID: 36535158 DOI: 10.1016/j.jcis.2022.12.039] [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: 09/29/2022] [Revised: 11/19/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
The design of multifunctional photocatalyst with strong redox performance is the key to achieve sustainable utilization of solar energy. In this study, an elegant S-scheme heterojunction photocatalyst was constructed between metal-free graphitic carbon nitride (g-C3N4) and noble-metal-free tungsten oxide (W18O49). As-established S-scheme heterojunction photocatalyst enabled multifunctional photocatalysis behavior, including hydrogen production, degradation (Rhodamine B) and bactericidal (Escherichia coli) properties, which represented extraordinary sustainability. Finite-difference time-domain (FDTD) simulations manifested that the integration of double-layer hollow g-C3N4 nanotubes with W18O49 nanowires could expand the light harvesting ability. Demonstrated by density functional theory (DFT) calculations and electron spin resonance (ESR) measurements, the S-scheme heterojunction not only promoted the separation of carriers, but also improved the redox ability of the catalyst. This work provides a theoretical basis for enhancing the photocatalytic performances and broadening the application field of photocatalysis.
Collapse
Affiliation(s)
- Yaru Shang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China
| | - Chunliang Wang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China
| | - Chunshuang Yan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Fengyang Jing
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China
| | - Morteza Roostaeinia
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta T2N 1N4, Canada
| | - Yu Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Gang Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China
| | - Chade Lv
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China
| |
Collapse
|
6
|
Zhang J, Zhang L, Mao C, Gu R, Wang W, Wang Y, Zhou Z, Yan B, Bi L, Fu Q, Zhu Y. Co
x
P/Hollow Porous C
3
N
4
as Highly Efficient Schottky Contact Photocatalyst for H
2
Evolution from Water Splitting. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202200609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jiadong Zhang
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Lijing Zhang
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Chen Mao
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Ruilong Gu
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Wei Wang
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Yuxin Wang
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Ziyan Zhou
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Bin Yan
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Lingling Bi
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Qiuyan Fu
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| | - Yiyao Zhu
- College of Chemical Engineering National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province Huaiyin Institute of Technology Huaian 223003 P. R. China
| |
Collapse
|
7
|
Hoang LAT, Le ND, Nguyen TD, Lee T. One-Step Synthesis of g-C3N4 Nanosheets with Enhanced Photocatalytic Performance for Organic Pollutants Degradation Under Visible Light Irradiation. Top Catal 2022. [DOI: 10.1007/s11244-022-01734-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
8
|
Ma X, Chen Q, Chen J, Liao Y, Cai L, Chen L, Wang N, Zhu Y, Huang Z. Construction and in-situ thermodynamics/kinetics studies on Ag-bridged g-C3N4-{002}/BiOBr-{001} facet Z–scheme heterojunction with crystal plane synergistic effect based on photocalorimetry - spectroscopy technology. J Catal 2022. [DOI: 10.1016/j.jcat.2022.07.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
9
|
In situ self-assembled preparation of mesoporous Ag/TiO2-MCM-41@LGCN with excellent applications of photocatalysis-adsorption. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
10
|
Che S, Zhou X, Zhang L, Su D, Wang T, Wang C. Construction of 2D layered phosphorus-doped graphitic carbon nitride/BiOBr heterojunction for highly efficient photocatalytic disinfection. Chem Asian J 2022; 17:e202200095. [PMID: 35355439 DOI: 10.1002/asia.202200095] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/19/2022] [Indexed: 11/08/2022]
Abstract
Infectious diseases caused by bacteria intimidate the health of human beings all over the world. Although many avenues have been tried, various operating conditions limit their actual applications. Photocatalytic nanomaterials are becoming candidates to be competent for water purification. Here, a novel and more efficient S-scheme has been engineered between two dimensional (2D) layered phosphorus-doped graphitic carbon nitride (P-g-C 3 N 4 ) and BiOBr via hydrothermal polymerization to inhibit the recombination of charge and broaden light absorption. The as-prepared P-g-C 3 N 4 /BiOBr hybrids exhibits significantly improved photocatalytic disinfection contrast to g-C 3 N 4 /BiOBr in visible wavelengths, suggesting phosphorus doping which adjusts the band structure plays a significant role in the S-scheme system. And the sterilization rate of multidrug-resistant Acinetobacter baumannii 28 ( AB 28 ) was 99.9999% within 80 min and Staphylococcus aureus ( S. aureus ) was 99.9%.
Collapse
Affiliation(s)
- Shuya Che
- Yangzhou University, The College of Chemistry and Chemical Engineering, CHINA
| | - Xiaoyu Zhou
- Yangzhou University, The College of Chemistry and Chemical Engineering, CHINA
| | - Lei Zhang
- Yangzhou University, The College of Chemistry and Chemical Engineering, CHINA
| | - Dawei Su
- University of Technology Sydney, School of Chemistry and Forensic Science, Mathematical and Physical Science, AUSTRALIA
| | - Tianyi Wang
- Yangzhou University, The College of Chemistry and Chemical Engineering, CHINA
| | - Chengyin Wang
- Yangzhou University, Department of Chemistry and Chemical Engineering, 180 Si-Wang-Ting Road, 225002, Yangzhou, CHINA
| |
Collapse
|
11
|
Hu J, Yang T, Yang X, Qu J, Cai Y, Li CM. Highly Selective and Efficient Solar-Light-Driven CO 2 Conversion with an Ambient-Stable 2D/2D Co 2 P@BP/g-C 3 N 4 Heterojunction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105376. [PMID: 34866341 DOI: 10.1002/smll.202105376] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/25/2021] [Indexed: 06/13/2023]
Abstract
Renewable solar-driven carbon dioxide (CO2 ) conversion to highly valuable fuels is an economical and prospective strategy for both the energy crisis and ecological environment disorder. However, the selectivity and activity of current photocatalysts have great room for improvement due to the diversification and complexity of products. Here, an ambient-stable 2D/2D Co2 P@BP/g-C3 N4 heterojunction is designed for highly selective and efficient photocatalytic CO2 reduction reaction. The resulting Co2 P@BP/g-C3 N4 material has a remarkable conversion of CO2 to carbon monoxide (CO) with an ≈96% selectivity, coupled with a dramatically increased CO generation rate of 16.21 µmol g-1 h-1 , which is 5.4 times higher than pristine graphitic carbon nitride (g-C3 N4 ). In addition, this photocatalyst exhibits good ambient stability of black phosphorus (BP) without oxidation even over 180 days. The excellent photocatalytic selectivity and activity of Co2 P@BP/g-C3 N4 heterojunction are attributed to its lower energy barriers of *COOH, *CO, and *+CO in the process of CO2 reduction, coupled with rapid charge transfer at the heterointerfaces of BP/g-C3 N4 and Co2 P/BP. This is solidly verified by both density functional theory calculation and mechanism experiments. Therefore, this work holds great promise for an ambient-stable efficient and high selectivity photocatalyst in solar-driven CO2 conversion.
Collapse
Affiliation(s)
- Jundie Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Tingyu Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xiaogang Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Jiafu Qu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Yahui Cai
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Chang Ming Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
- Institute of Clean Energy & Advanced Materials, Southwest University, Chongqing, 400715, China
| |
Collapse
|
12
|
Transition metals decorated g-C3N4/N-doped carbon nanotube catalysts for water splitting: A review. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115510] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
13
|
Li H, Zang L, Shen F, Wang L, Sun L, Yuan F. Tubular g-C 3N 4/carbon framework for high-efficiency photocatalytic degradation of methylene blue. RSC Adv 2021; 11:18519-18524. [PMID: 35480932 PMCID: PMC9033409 DOI: 10.1039/d1ra02918e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/15/2021] [Indexed: 11/21/2022] Open
Abstract
The preparation of high-efficiency, pollution-free photocatalysts for water treatment has always been one of the research hotspots. In this paper, a carbon framework formed from waste grapefruit peel is used as the carrier. A simple one-step chemical vapor deposition (CVD) method allows tubular g-C3N4 to grow on the carbon framework. Tubular g-C3N4 increases the specific surface area of bulk g-C3N4 and enhances the absorption of visible light. At the same time, the carbon framework can effectively promote the separation and transfer of charges. The dual effects of static adsorption and photodegradation enable the g-C3N4/carbon (CNC) framework to quickly remove about 98% of methylene blue within 180 min. The recyclability indicates that the tubular g-C3N4 can stably exist on the carbon framework during the photodegradation process. In the dynamic photocatalytic test driven by gravity, roughly 77.65% of the methylene blue was degraded by the CNC framework. Our work provides an attractive strategy for constructing a composite carbon framework photocatalyst based on the tubular g-C3N4 structure and improving the photocatalytic performance. Tubular g-C3N4 grown on a carbon framework increased the surface area of bulk g-C3N4, enhanced the absorption of visible light and promoted the photocatalytic performance.![]()
Collapse
Affiliation(s)
- Haicheng Li
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Linlin Zang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 P. R. China
| | - Fengtong Shen
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Libin Wang
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Liguo Sun
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Fulong Yuan
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| |
Collapse
|
14
|
Zhang X, Yang P, Jiang SP. Pt nanoparticles embedded spine-like g-C 3N 4 nanostructures with superior photocatalytic activity for H 2 generation and CO 2 reduction. NANOTECHNOLOGY 2021; 32:175401. [PMID: 33461184 DOI: 10.1088/1361-6528/abdcee] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Conventional two-dimensional (2D) graphitic carbon nitride, 2D g-C3N4 with its layered structures and flat and smooth 2D surface possesses certain disadvantages that is affecting their photocatalytic performances. In this paper, new nanostructured spine-like three-dimensional (3D) g-C3N4 nanostructures are created for the first time via a new three-step synthesis method. In this method, self-assembly of layered precursors and H+ intercalation introduced by acid treatment play an important role for the unique nanostructure formation of 3D g-C3N4 nanostructures. The spine-like 3D g-C3N4 nanostructures show a superior photocatalytic performance for H2 generation, achieving 4500 μmol·g-1·h-1, 8.2 times higher than that on conventional 2D g-C3N4. Remarkably spine-like 3D g-C3N4 nanostructures demonstrate a clear photocatalytic activity toward CO2 reduction to CH4 (0.71 μmol·g-1·h-1) in contrast to the negligible photocatalytic performance of conventional 2D g-C3N4 for the reaction. Adding Pt clusters as co-catalysts substantially enhance the CH4 generation rate of the 3D g-C3N4 nanostructures by 4 times (2.7 μmol·g-1·h-1). Spine-like 3D g-C3N4 caged nanostructure leads to the significantly increased active sites and negatively shifted conduction band position in comparison with conventional 2D g-C3N4, favorable for the photocatalytic reduction reaction. This study demonstrates a new platform for the development of efficient photocatalysts based on nanostructured 3D g-C3N4 for H2 generation and conversion of CO2 to useful fuels such as CH4.
Collapse
Affiliation(s)
- Xiao Zhang
- Fuels and Energy Technology Institute and Department of Chemical Engineering, Curtin University, Perth, WA6845, Australia
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, 250022, Jinan, People's Republic of China
| | - San Ping Jiang
- Fuels and Energy Technology Institute and Department of Chemical Engineering, Curtin University, Perth, WA6845, Australia
| |
Collapse
|