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Ma Y, Wu P, Ku M, Guo M, Yang Y, Li X, Chen H. Organic pollutant degradation for micro-molecule product emission over SiO 2 layers-coated g-C 3N 4 photocatalysts. RSC Adv 2024; 14:6727-6737. [PMID: 38405067 PMCID: PMC10884889 DOI: 10.1039/d3ra08775a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/07/2024] [Indexed: 02/27/2024] Open
Abstract
In this study, a SiO2 layer-coated g-C3N4 catalyst was prepared by a sol-gel method to overcome the poor adsorption ability and high recombination rate of charge carriers of pristine g-C3N4. SEM and TEM images indicated that SiO2 nanoparticles were coated on the surface of g-C3N4 nanoparticles with a layered structure and the layers were tightly contacted with g-C3N4. XRD patterns, FTIR spectra, UV-vis spectra and XPS spectra revealed that the structure of g-C3N4 was not destroyed and its photoelectric catalytic properties were not suppressed by the coating of SiO2 layers. Adsorption experiments revealed that the SiO2 layers improved the adsorption performance of g-C3N4 and their ratios were adjusted. The molecular weights of the final products of the degradation of RhB and antibiotics were at the micro-molecule level while the amount of g-C3N4 reached 1.2% of the mass fraction, which were more suitable for pollutant degradation compared with those of g-C3N4 due to its poor adsorption ability. The reason for this was likely that the SiO2 layers were not only beneficial for the adsorption of pollutants and intermediate products but also for prolonging the life time of the separated electrons and holes. Finally, active trapping experiments confirmed that both the holes and superoxide radicals were the main factors in the degradation of RhB and antibiotics, with the superoxides being the most active species.
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Affiliation(s)
- Yongning Ma
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology Xi'an 710021 P. R. China
| | - Peihan Wu
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology Xi'an 710021 P. R. China
| | - Mengting Ku
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology Xi'an 710021 P. R. China
| | - Mingyuan Guo
- College of Chemisty and Materials Science, Weinan Normal University Weinan 714099 P. R. China
| | - Yuhao Yang
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology Xi'an 710021 P. R. China
| | - Xiaolong Li
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology Xi'an 710021 P. R. China
| | - Haiyong Chen
- Gong Cheng Ji Shu Guan Li Bu, Changqing Oil Field Branch Company, PetroChina Xi'an 710018 P. R. China
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2
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Song S, Yang M, He F, Zhang X, Gao Y, An B, Ding H, Gai S, Yang P. Multiple therapeutic mechanisms of pyrrolic N-rich g-C 3N 4 nanosheets with enzyme-like function in the tumor microenvironment. J Colloid Interface Sci 2023; 650:1125-1137. [PMID: 37473473 DOI: 10.1016/j.jcis.2023.06.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/12/2023] [Accepted: 06/25/2023] [Indexed: 07/22/2023]
Abstract
Nanozyme-based synergistic catalytic therapies for tumors have attracted extensive research attention. However, the unsatisfactory efficiency and negative impact of the tumor microenvironment (TME) hinder its clinical applications. In this study, we provide an easy method to prepare transition metals loaded onto pyrrolic nitrogen-rich g-C3N4 (PN-g-C3N4) for forming metal-N4 sites. This N-rich material effectively transfers electrons from g-C3N4 to metal-N4 sites, promotes the oxidation-reduction reaction of metals with different valence states, and improves material reusability. Under TME conditions, copper ions loaded onto PN-g-C3N4 (Cu-PN-g-C3N4, CPC) can produce ·OH through a Fenton-like reaction for tumor inhibition. This Fenton-like reaction and tumor cell inhibition can be improved further by a photodynamic effect caused by light irradiation. We introduced upconversion nanoparticles (UCNPs) into CPC to obtain nano-enzymes (UCNPs@Cu-PN-g-C3N4, UCPC) for effectively penetrating the tissue, which emits light corresponding to the UV absorption region of CPC when excited with 980 nm near-infrared (NIR) light. The nanoplatform can reduce H2O2 concentration upon exposure to NIR light; this induces an increase in dissolved oxygen content and produces a higher supply of reactive oxygen species (ROS) for destroying tumor cells. Owing to the narrow bandgap (1.92 eV) of UCPC under 980 light irradiation, even under the condition of hypoxia, the excited electrons in the conduction band can reduce insoluble O2 through a single electron transfer process, thus effectively generating O2•-. Nanoenzyme materials with catalase properties produce three types of ROS (·OH, O2•- and 1O2) when realizing chemodynamic and photodynamic therapies. An excellent therapeutic effect was established by killing cells in vitro and the tumor-inhibiting effect in vivo, proving that the prepared nanoenzymes have an effective therapeutic effect and that the endogenous synergistic treatment of multiple treatment technologies can be realized.
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Affiliation(s)
- Shanshan Song
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Miao Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Fei He
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China.
| | - Xiao Zhang
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 999077, PR China;.
| | - Yijun Gao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Baichao An
- College of Sciences, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, PR China
| | - He Ding
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China.
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3
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Li G, Liang J, Lin J, Li H, Liu Y, Xu G, Yu C, Guo Z, Tang C, Huang Y. Boron nitride aerogels incorporated with metal nanoparticles: Multifunctional platforms for iodine capture and detection. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132481. [PMID: 37690206 DOI: 10.1016/j.jhazmat.2023.132481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/21/2023] [Accepted: 09/03/2023] [Indexed: 09/12/2023]
Abstract
Radioactive iodine vapors produced by nuclear fission can pose a significant risk to human health and the environment. Effective monitoring of iodine vapor leakage, capture and storage of radioactive iodine vapor are of great importance for the safety of the nuclear industry. Herein, we report a novel structure-function integrated solid iodine vapor adsorbent based on metal-modified boron nitride (BN) aerogel. Metal-modified BN aerogels incorporated with Cu/Ag nanoparticles (named as BN-Cu and BN-Ag, respectively) are successfully prepared by a metal-induced, ultrasonic-assisted, and in-situ transformation method. The metal-modified BN aerogels show improved mechanical properties in both of the maximum stress and residual deformation. Remarkably, due to the greatly enhanced "host-guest" and "guest-guest" effects by the introduction of metal nanoparticles, the BN-Cu and BN-Ag aerogels exhibit record-breaking iodine vapor adsorption capacities among inorganic adsorbents (1739.8 and 2234.13 wt% respectively), which are even higher than that of most organic adsorbents. Furthermore, an integrated iodine adsorption detection device based on metal-modified aerogels is constructed to realize real-time detection of the electrical properties of aerogels during iodine adsorption. This work provides a foundation for the development of BN aerogels as multifunctional platforms for effective iodine capture and detection. It also introduces new ideas for the use of structural-functional integrated materials in the prevention and control of radioactive iodine pollution.
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Affiliation(s)
- Gen Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Jianli Liang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Jing Lin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China.
| | - Hongyu Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Yan Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Guoyang Xu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Chao Yu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Zhonglu Guo
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Chengchun Tang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Yang Huang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China.
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4
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Lei L, Fan H, Jia Y, Wu X, Hu N, Zhong Q, Wang W. Surface-assisted synthesis of biomass carbon-decorated polymer carbon nitride for efficient visible light photocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 634:1014-1023. [PMID: 36577254 DOI: 10.1016/j.jcis.2022.12.092] [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: 10/09/2022] [Revised: 12/15/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Template is frequently studied as a structure-directing agent to tune the nanomorphology of photocatalysts. However, the influences of template on the polymerization of precursors and compositions of the resulting samples are rarely considered. Herein, a biomass carbon-modified graphitic carbon nitride (CCNx) with a thin-layer morphology is synthesized via one-pot surface-assisted polymerization of melamine precursor on organic yeast. The formation of the hydrogen bond between melamine and yeast induces a strong interfacial confinement, giving rise to small-sized CCNx. In addition, the carbon materials derived from yeast dramatically broaden n → π* visible light harvesting, improve electron delocalization, and greatly enhance charge carrier separation. The optimized CCNx presents a much higher photocatalytic hydrogen production rate of 2704 μmol g-1h-1 under visible light irradiation (λ ≥ 420 nm), which is nearly 11-fold that of its pristine counterpart. This work realizes the synergistic effect between morphology tunning and composition tailoring by using biomass template, which shows a great potential in developing efficient metal-free photocatalysts.
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Affiliation(s)
- Lin Lei
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Huiqing Fan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Yuxin Jia
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xiaobo Wu
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Neng Hu
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, 310018 Hangzhou, China
| | - Qi Zhong
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, 310018 Hangzhou, China
| | - Weijia Wang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
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5
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Xu Z, Yu Y, Zhao J, Liao Z, Sun Y, Cheng S, Gou S. A Unique Chemo-photodynamic Antitumor Approach to Suppress Hypoxia via Ultrathin Graphitic Carbon Nitride Nanosheets Supported a Platinum(IV) Prodrug. Inorg Chem 2022; 61:20346-20357. [DOI: 10.1021/acs.inorgchem.2c02806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Zichen Xu
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing211189, China
| | - Yongzhi Yu
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen333001, P.R. China
| | - Jian Zhao
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing211189, China
| | - Zhixin Liao
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing211189, China
| | - Yanyan Sun
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou215009, China
| | - Si Cheng
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen333001, P.R. China
| | - Shaohua Gou
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing211189, China
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6
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Zhao Z, Wang X, Wang S, Xiao Z, Zhai S, Ma J, Dong X, Sun H, An Q. Three-Dimensional Hierarchical Seaweed-Derived Carbonaceous Network with Designed g-C 3N 4 Nanosheets: Preparation and Mechanism Insight for 4-Nitrophenol Photoreduction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11054-11067. [PMID: 36049185 DOI: 10.1021/acs.langmuir.2c01700] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of g-C3N4-based photocatalysts with abundant active sites is of great significance for photocatalytic reactions. Herein, a smart and robust strategy was presented to fabricate three-dimensional (3D) g-C3N4 nanosheet-coated alginate-based hierarchical porous carbon (g-C3N4@HPC), including coating melamine on calcium alginate (CA) hydrogel beads, freeze-drying hydrogel beads as well as pyrolysis at high temperatures. The resulting photocatalyst possessed a significantly high surface area and a large amount of interconnected macropores compared with porous carbon without the melamine coating. The unique structural features could effectively inhibit the curling and agglomeration of g-C3N4 nanosheets, provide abundant photocatalytic active sites, and promote mass diffusion. Therefore, the g-C3N4@HPC composite exhibited remarkable photocatalytic activity and outstanding stability toward the photoreduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by NaBH4 under natural sunlight and simulated visible-light irradiation (λ > 420 nm) using a 300 W xenon lamp. Moreover, the mechanism toward the photocatalytic reaction was extensively studied by quenching experiments and electron spin resonance (ESR) experiments. The results showed that active hydrogen species were able to be achieved by following a dual-channel pathway in the NaBH4 system, which included photocatalytic reduction of H+ ions and photocatalytic oxidation of BH4- ions. This work not only opens up a new way to design efficient photocatalysts for various reactions but also provides a reference for an in-depth study of the photoreduction mechanism.
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Affiliation(s)
- Zhenyu Zhao
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Xuting Wang
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Shifu Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Zuoyi Xiao
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Shangru Zhai
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Jiliang Ma
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Xiaoli Dong
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Haodong Sun
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Qingda An
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
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7
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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]
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8
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Kumar Singh A, Das C, Indra A. Scope and prospect of transition metal-based cocatalysts for visible light-driven photocatalytic hydrogen evolution with graphitic carbon nitride. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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9
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Li J, Yang R, Hu D, Xu Y, Ma Z. Efficient bacterial inactivation with S-doped g-C 3N 4 nanosheets under visible light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:34637-34650. [PMID: 35040064 DOI: 10.1007/s11356-021-18092-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
The pathogenic bacteria in water that threatens the human health and photocatalytic disinfection have been proven to be a cost-effective and promising green technology. It is significant and necessary to develop efficient, safe, and visible light-driven photocatalysts. In this study, Escherichia coli was used as model bacterium and the disinfection performance of prepared S-doped g-C3N4 nanosheets (S-CNNs) under visible light was investigated. The results showed that the synergistic effects of S doping and the unique 2D structure of S-CNNs enhanced the visible light absorption, enlarged the specific surface area and reduced the recombination of photogenerated charge carriers which is beneficial for promoting the photocatalytic disinfection of the E. coli. Scavenger experiments indicated •O2- and h+ were the predominant reactive species in the photocatalytic disinfection process. In addition, the kinetics of disinfection activity were fitted by the modified Hom model and the k2 value of S-CNNs is 0.0219 min-1, which is much higher than that of the bulk g-C3N4 (CN). This work has demonstrated efficient bacterial inactivation with S-CNNs under visible light irradiation.
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Affiliation(s)
- Juan Li
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, P. R, China
| | - Ruixian Yang
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, P. R, China
| | - DanDan Hu
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, P. R, China
| | - Yanchong Xu
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R, China
| | - Zhanqiang Ma
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R, China.
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10
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Zhong L, Ying M, Mou Z, Luo R, Sun J, Liu D, Lei W. Template-free preparation of carbon nitride hollow spheres with adjustable sizes for photocatalytic hydrogen generation. J Colloid Interface Sci 2022; 612:479-487. [PMID: 34999552 DOI: 10.1016/j.jcis.2021.12.154] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/16/2021] [Accepted: 12/22/2021] [Indexed: 11/19/2022]
Abstract
Carbon nitride hollow spheres (CNHS) with adjustable sizes were successfully fabricated via a template-free supramolecular pre-assembly strategy, in which melamine-cyanuric acid (MCA) hollow spheres were constructed through hydrogen bonds. A feasible formation mechanism was proposed, which coupled an inside-out Ostwald ripening with the supramolecular pre-assembly process. Interestingly, the sizes of MCA could be manipulated by changing the pre-assembly temperature. Consequently, the sizes of CNHS were adjustable. The optimal CNHS exhibited excellent photocatalytic hydrogen evolution rate (98.6 μmol/h) in the visible-light region, which was approximately 11 times higher than that of bulk carbon nitride calcined by melamine. The significantly improved performance was due to the contributions including: the unique architectures with remarkable light absorption ability, high electrical conductivity, relatively narrowed band gap, fast charge separation. This work provides a facile template-free supramolecular pre-assembly strategy to fabricate carbon nitride hollow spheres with adjustable sizes for the first time.
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Affiliation(s)
- Lei Zhong
- School of Chemistry and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, Jiangsu Province, PR China
| | - Mengfan Ying
- School of Chemistry and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, Jiangsu Province, PR China
| | - Zhigang Mou
- School of Chemistry and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, Jiangsu Province, PR China
| | - Run Luo
- School of Chemistry and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, Jiangsu Province, PR China
| | - Jianhua Sun
- School of Chemistry and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, Jiangsu Province, PR China.
| | - Dan Liu
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Weiwei Lei
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
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11
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Wang Y, Yang N, Soldatov M, Liu H. A novel phosphazene-based amine-functionalized porous polymer with high adsorption ability for I2, dyes and heavy metal ions. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Zeng Z, Yuan Y, Lu H, Gao S, Ren S, Rong P, Jiao S, Wang D, Wang J. Low‐temperature synthesis of
ZnO
/
ZnS
/
CuS
heterojunction based on solution‐processed nanosheet array with enhanced photocatalytic activity. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi Zeng
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
| | - Ye Yuan
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
| | - Huiqing Lu
- Key Laboratory for Photonic and Electric Bandgap Materials Ministry of Education Harbin Normal University Harbin China
| | - Shiyong Gao
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
- Key Laboratory for Photonic and Electric Bandgap Materials Ministry of Education Harbin Normal University Harbin China
| | - Shuai Ren
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
| | - Ping Rong
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
| | - Shujie Jiao
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
| | - Dongbo Wang
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
| | - Jinzhong Wang
- School of Materials Science and Engineering Harbin Institute of Technology Harbin China
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13
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Jin ZL, Wang YP. Strategy of Graphdiyne (g-C n H 2n-2 ) Preparation Coupling with the Flower-Like NiAl-LDH Heterojunctions for Efficient Photocatalytic Hydrogen Evolution*. Chemistry 2021; 27:12649-12658. [PMID: 34180095 DOI: 10.1002/chem.202101908] [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: 06/01/2021] [Indexed: 01/06/2023]
Abstract
Graphdiyne (g-Cn H2n-2 ), a novel two-dimension carbon allotrope material composed of a sp- and sp2 -hybrid carbon network, has been widely explored since it was synthesized for the first time by Li's group in 2010. A series distinct and excellent properties bestow graphdiyne excellent performance in many fields. Here, an innovative progress for preparing graphdiyne by using Cu+ contained material as catalyst is reported and the composite CuI-GD is coupled with flower-like NiAl-LDH to produce H2 from photocatalytic water splitting. The results of FTIR and Raman spectroscopy together reveal that graphdiyne nanosheets are synthesized successfully by employing a cross-coupling method. Photocatalytic hydrogen evolution performance shows that the hydrogen production activity of CuI-GD/NiAl-LDH has a 15- and 216-fold enhancement compared with CuI-GD and NiAl-LDH, respectively. A series of characterizations are carried out to expound the underlying reasons in the enhancement of the photocatalytic hydrogen production performance of CuI-GD/NiAl-LDH. Meanwhile, a possible mechanism for the photocatalytic hydrogen evolution process was proposed to understand the interaction among these materials.
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Affiliation(s)
- Zhi-Liang Jin
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, 750021, P. R.China.,Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, 750021, P. R.China.,Key Laboratory for Chemical Engineering and Technology State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, P. R. China
| | - Yuan-Peng Wang
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, 750021, P. R.China.,Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, 750021, P. R.China.,Key Laboratory for Chemical Engineering and Technology State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, P. R. China
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Zhu K, Chen L, Alharbi NS, Chen C. Interconnected hierarchical nickel-carbon hybrids assembled by porous nanosheets for Cr(VI) reduction with formic acid. J Colloid Interface Sci 2021; 606:213-222. [PMID: 34390989 DOI: 10.1016/j.jcis.2021.08.024] [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: 07/08/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 12/20/2022]
Abstract
Magnetic carbon materials promise distinct advantages in the decontamination of heavy metal ions. In this work, a novel interconnected hierarchical nickel-carbon (Ni@IHC) hybrid was synthesized by combining the solvothermal method with a one-step pyrolysis under argon atmosphere. Benefitting from 3D flower-like morphology, interconnected porous nanosheets, large surface area, and abundant Ni nanoparticles, Ni@IHC hybrids can remove Cr(VI) within 25 min by using formic acid (FA) as a reductant at 25 ℃. Furthermore, the experimental parameters that can affect the material catalytic performance such as initial Cr(VI) concentration, catalyst dosage, FA concentration, and temperature were also investigated in detail. It was found that highly dispersed Ni nanoparticles contributed significantly to the reduction process. More importantly, the embedded Ni nanoparticles favor fast separation by a magnet and were helpful for the recycles use. This Ni@IHC hybrid was obtained by a facile and easy scale-up method, resulting in the fast transformation of Cr(VI) into Cr(III).
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Affiliation(s)
- Kairuo Zhu
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China; University of Science and Technology of China, Hefei 230000, PR China
| | - Lili Chen
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China; University of Science and Technology of China, Hefei 230000, PR China
| | - Njud S Alharbi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Changlun Chen
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China.
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15
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Shen Q, Wei L, Bibi R, Wang K, Hao D, Zhou J, Li N. Boosting photocatalytic degradation of tetracycline under visible light over hierarchical carbon nitride microrods with carbon vacancies. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125376. [PMID: 33626475 DOI: 10.1016/j.jhazmat.2021.125376] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/06/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Graphitic carbon nitride is considered as one of the promising photocatalysts for pollution elimination from wastewater. Manipulating the microstructure of carbon nitride remains a challengeable task, which is essential for improving light absorption, separating photogenerated carrier and creating reactive sites. Herein, a carbon vacancy modified hierarchical carbon nitride microrod (CN1.5) has been prepared templated from a melamine-NH2OH·HCl complex. The hierarchical microrods are demonstrated to be comprised of interconnected nanosheets with rich carbon vacancies, which endows it with high specific surface area, enhanced light utilization efficiency, available reactive sites, improved charge carrier separation and numerous mass-transport channels. The resultant photocatalyst CN1.5 exhibits an excellent photodegradation efficiency of 87.9% towards tetracycline under visible light irradiation. The remarkable apparent rate constant of 4.91 × 10-2 min-1 is 7.3 times higher than that of bulk CN. In addition, the degradation pathways are deduced base on the observation of degradation intermediates generating in the photocatalytic process. Mechanism investigation indicates that the major contribution for photodegradation is attributed to ·O2-, 1O2 and H2O2 species. This work provides new insights into advancing carbon nitride's microstructure to improve photocatalytic degradation performance for highly efficient antibiotic removal and environment remediation.
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Affiliation(s)
- Quanhao Shen
- School of Chemistry and Chemical Engineering, Southeast University, No. 2 Dongnandaxue Road, Nanjing 211189, Jiangsu, PR China
| | - Lingfei Wei
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, No. 2 Mengxi Road, Zhenjiang 212003, Jiangsu, PR China
| | - Rehana Bibi
- School of Chemistry and Chemical Engineering, Southeast University, No. 2 Dongnandaxue Road, Nanjing 211189, Jiangsu, PR China
| | - Ke Wang
- School of Chemistry and Chemical Engineering, Southeast University, No. 2 Dongnandaxue Road, Nanjing 211189, Jiangsu, PR China
| | - Dandan Hao
- School of Chemistry and Chemical Engineering, Southeast University, No. 2 Dongnandaxue Road, Nanjing 211189, Jiangsu, PR China
| | - Jiancheng Zhou
- School of Chemistry and Chemical Engineering, Southeast University, No. 2 Dongnandaxue Road, Nanjing 211189, Jiangsu, PR China.
| | - Naixu Li
- School of Chemistry and Chemical Engineering, Southeast University, No. 2 Dongnandaxue Road, Nanjing 211189, Jiangsu, PR China; Jiangsu Key Laboratory for Biomass Energy and Material, No. 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, PR China.
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16
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Li R, Cui X, Bi J, Ji X, Li X, Wang N, Huang Y, Huang X, Hao H. Urea-induced supramolecular self-assembly strategy to synthesize wrinkled porous carbon nitride nanosheets for highly-efficient visible-light photocatalytic degradation. RSC Adv 2021; 11:23459-23470. [PMID: 35479779 PMCID: PMC9036594 DOI: 10.1039/d1ra03524j] [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: 05/06/2021] [Accepted: 06/27/2021] [Indexed: 01/01/2023] Open
Abstract
Graphitic carbon nitride (g-C3N4) has attracted immense interest as a promising photocatalyst. To facilitate its versatile applications in many fields, new low-cost strategies to synthesize outstanding g-C3N4 need to be further developed. Although supramolecular preorganization has been considered as a promising candidate, the utilized supramolecules like melamine–cyanuric acid (MCA) are typically synthesized by expensive triazine derivatives. Herein, wrinkled porous g-C3N4 nanosheets were successfully fabricated by hydrothermal-annealing of supramolecular intermediate MCA synthesized by the cheap precursors dicyandiamide and urea. During the formation of MCA, urea could act as a facile agent to react with dicyandiamide to form melamine and cyanuric acid firstly and then assemble into MCA through hydrogen bonds. In addition, urea could serve as a porogen and decompose to generate bubbles for conducive formation of micro-size MCA self-templates and thus wrinkled porous g-C3N4 nanosheets could be obtained. The nanostructure and photocatalytic performance of g-C3N4 were optimized by modulating microstructures and physicochemical properties of MCA, which could be conveniently controlled by urea addition and hydrothermal duration. The obtained wrinkled porous g-C3N4 nanosheets exhibit highly-efficient visible-light photocatalytic degradation compared with traditional MCA-derived g-C3N4, which could remove 98.3% of the rhodamine B in 25 min. The superior photocatalytic activity is mainly attributed to the urea-induced larger specific surface area, better light harvesting ability, faster transfer and more advanced separation efficiency of the photogenerated electron–hole pairs. This research provides a new strategy for preparing high-performance porous g-C3N4 from the self-assembled supramolecule MCA synthesized by low-cost precursors. Wrinkled porous g-C3N4 nanosheets were fabricated by supramolecular MCA self-templates. Due to the reactant and porogen agent urea, g-C3N4 could be modulated with efficient electron–hole pairs and thus superior photocatalytic degradation performance.![]()
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Affiliation(s)
- Rui Li
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Xianbao Cui
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Jingtao Bi
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Xiongtao Ji
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Xin Li
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Na Wang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Yunhai Huang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
| | - Xin Huang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Co-Innovation Center of Chemical Science and Engineering Tianjin 300072 China
| | - Hongxun Hao
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Co-Innovation Center of Chemical Science and Engineering Tianjin 300072 China
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17
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Ha NTT, Be PT, Lan PT, Mo NT, Cam LM, Ha NN. Whether planar or corrugated graphitic carbon nitride combined with titanium dioxide exhibits better photocatalytic performance? RSC Adv 2021; 11:16351-16358. [PMID: 35479150 PMCID: PMC9030072 DOI: 10.1039/d1ra01237a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/18/2021] [Indexed: 11/21/2022] Open
Abstract
The density functional theory method was performed to study the electronic structures of planar (pGN), corrugated (cGN) graphitic carbon nitride and their interactions with titanium dioxide cluster (TiO2)7. The transfer of photoinduced electrons was analyzed and electronic excitations were calculated. The obtained results show that cGN is thermodynamically more stable than pGN. cGN chemically interacts with titanium dioxide clusters, while the interaction between pGN and the cluster is assigned to physical nature. The combination of cGN and pGN with (TiO2)7 reduces the energy of the first excited states compared to that of the pure substances. The photocatalytic activities were estimated based on hypotheses on the location of the reduction and oxidation sites, the distance between the photoinduced holes and electrons and the electron density of molecular orbitals involved in the excitation. cGN/TiO2 is predicted to have a higher photocatalytic activity than pGN/TiO2.
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Affiliation(s)
- Nguyen Thi Thu Ha
- Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy Str. Hanoi Vietnam
| | - Pham Thi Be
- Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy Str. Hanoi Vietnam .,Faculty of Natural Science and Technology, Taynguyen University Daklak Vietnam
| | - Phung Thi Lan
- Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy Str. Hanoi Vietnam
| | - Nguyen Thi Mo
- Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy Str. Hanoi Vietnam
| | - Le Minh Cam
- Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy Str. Hanoi Vietnam
| | - Nguyen Ngoc Ha
- Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy Str. Hanoi Vietnam
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Li L, Zhang J, Zhang Q, Wang X, Dai WL. Superior sponge-like carbon self-doping graphitic carbon nitride nanosheets derived from supramolecular pre-assembly of a melamine-cyanuric acid complex for photocatalytic H 2 evolution. NANOTECHNOLOGY 2021; 32:155604. [PMID: 33361568 DOI: 10.1088/1361-6528/abd6d1] [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
The photocatalytic evolution of hydrogen (H2) from water splitting is considered a promising route to overcome the energy crisis, and the key lies in the preparation of efficient photocatalysts. Herein, superior ordered sponge-like carbon self-doped graphitic carbon nitride (g-C3N4) nanosheets (SCCNS) were prepared via a combined strategy of melamine-cyanuric acid complex supramolecular pre-assembly and solvothermal pre-treatment using ethylene glycol (EG) aqueous solutions (EG:water = 50:50 vol.%) as a solvent and carbon doping source. The following pyrolysis converts the naturally arranged melamine-EG-cyanuric acid supramolecular intermediates to highly crystalline SCCNS with large specific surface areas. The optimal SCCNS-180 exhibits superior photocatalytic H2 evolution activities (∼4393 and 11 320 μmol h-1 g-1) when irradiated with visible light and simulated sunlight; these values are up to ∼17- and ∼18-fold higher than that of bulk g-C3N4. The quantum efficiency of SCCNS-180 at λ = 420 nm can reach 6.0%. The excellent photocatalytic performance of SCCNS-180 derives from its distinct ordered sponge-like nanosheet structure with highly crystallinity and the carbon doping, leading to its improved optical absorption, accelerated photoinduced electron-hole pair transfer and separation rate and enlarged specific surface area (134.4 m2 g-1).
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Affiliation(s)
- Lingfeng Li
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Juhua Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Quan Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Xiaohao Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Wei-Lin Dai
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
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19
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20
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Wang Y, Soldatov M, Wang Q, Liu H. Phosphazene functionalized silsesquioxane-based porous polymers for absorbing I2, CO2 and dyes. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123491] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Du X, Song S, Wang Y, Jin W, Ding T, Tian Y, Li X. Facile one-pot synthesis of defect-engineered step-scheme WO 3/g-C 3N 4 heterojunctions for efficient photocatalytic hydrogen production. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02478c] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Defect-engineered step-scheme WO3/g-C3N4 heterojunctions synthesized by a facile one-pot method greatly improve the photocatalytic activity for hydrogen evolution.
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Affiliation(s)
- Xiya Du
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Song Song
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Yating Wang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization
- School of Chemical Engineering and Material Science
- Tianjin University of Science & Technology
- Tianjin 300457
- P. R. China
| | - Wenfeng Jin
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Tong Ding
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Ye Tian
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Xingang Li
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
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22
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Chouhan RS, Jerman I, Heath D, Bohm S, Gandhi S, Sadhu V, Baker S, Horvat M. Emerging tri‐s‐triazine‐based graphitic carbon nitride: A potential signal‐transducing nanostructured material for sensor applications. NANO SELECT 2020. [DOI: 10.1002/nano.202000228] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
| | - Ivan Jerman
- National Institute of Chemistry Ljubljana Slovenia
| | - David Heath
- Department of Environmental Sciences Jožef Stefan Institute Ljubljana Slovenia
| | - Sivasambu Bohm
- Royal Society Industry Fellow Molecular Science Research Hub Imperial College London London UK
| | - Sonu Gandhi
- DBT‐National Institute of Animal Biotechnology (DBT‐NIAB) Hyderabad Telangana India
| | - Veera Sadhu
- School of Physical Sciences Kakatiya Institute of Technology & Science (KITS) Warangal Telangana India
| | - Syed Baker
- Department of Microbiology Prof. V.F. Voino‐Yasenetsky Krasnoyarsk State Medical University Krasnoyarsk Siberia Russian Federation
| | - Milena Horvat
- Department of Environmental Sciences Jožef Stefan Institute Ljubljana Slovenia
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23
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Li J, Liu X, Liu C, Che H, Li C. Facile nitrogen and sulfur deficient engineering on sulfur doped g-C3N4 for efficiently photocatalytic H2 evolution. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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24
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Zhao R, Sheng L, Gao K. Theoretical prediction of Xe-containing polymer. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1842532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Rui Zhao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, People’s Republic of China
| | - Li Sheng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, People’s Republic of China
| | - Kunqi Gao
- School of Science, College of Art and Science, Shanghai Polytechnic University, Shanghai, People’s Republic of China
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Huang X, Gu W, Ma Y, Liu D, Ding N, Zhou L, Lei J, Wang L, Zhang J. Recent advances of doped graphite carbon nitride for photocatalytic reduction of CO2: a review. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04278-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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26
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Qi H, Shi C, Jiang X, Teng M, Sun Z, Huang Z, Pan D, Liu S, Guo Z. Constructing CeO 2/nitrogen-doped carbon quantum dot/g-C 3N 4 heterojunction photocatalysts for highly efficient visible light photocatalysis. NANOSCALE 2020; 12:19112-19120. [PMID: 32926033 DOI: 10.1039/d0nr02965c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ternary CeO2/nitrogen-doped carbon quantum dot (NCQD)/graphitic carbon nitride (g-C3N4) heterojunction nanocomposites were prepared by a high-temperature calcination and hydrothermal method and tested for degrading tetracycline (TC) and generating H2. Compared with CeO2 and g-C3N4, the Z-scheme CeO2/NCQDs/g-C3N4 (CSNx, where x represents the amount of CeO2 in wt%) nanoparticles showed a higher TC photodegradation capacity and H2 evolution ability owing to enhanced efficient charge separation and photocatalytic stability. CSN5 showed the best photodegradation activity for TC degradation (100 mL, 20 mg L-1; 100% degradation in 60 min; λ≥ 420 nm) and the highest H2 evolution rate of 1275.42 μmol h-1 g-1 was approximately 3.73- and 32.25-times higher than those of pristine g-C3N4 (341.85 μmol h-1 g-1) and pure CeO2 (39.55 μmol h-1 g-1), respectively. Superoxide (˙O2-) and hydroxyl (˙OH) radicals were also confirmed to be formed on the sample surface for TC photocatalytic degradation. As an electronic medium, NCQDs transferred electrons between the g-C3N4 and CeO2 interface to promote the electron-hole separation. This work affords a helpful perspective for synthesizing efficient charge separation and environmentally friendly photocatalysts by controlling the surface heterostructure.
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Affiliation(s)
- Houjuan Qi
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), College of Material Science and Engineering, Ministry of Education, Harbin 150040, China.
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Chen T, Zhu Z, Zhang H, Qiu Y, Yin D, Zhao G. Facile Construction of a Copper-Containing Covalent Bond for Peroxymonosulfate Activation: Efficient Redox Behavior of Copper Species via Electron Transfer Regulation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42790-42802. [PMID: 32857501 DOI: 10.1021/acsami.0c11268] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Heterogeneous catalysis can be enhanced through the construction of effective atom connection for rapid electron transport on the catalyst surface. Hence, this study proposed a new strategy for electron transfer regulation to facilitate redox cycle of Cu(II)/Cu(I). The objective was achieved by successful construction of copper-containing covalent bond through the in situ growth of porous g-C3N4 with oxygen dopants and nitrogen defects (O-CND) on CuAlxOy substrate (CuAl@O-CND). On the basis of X-ray absorption fine structure (XAFS) and other characterization results, the facilitated redox behavior of copper species by electron transfer regulation was ascribed to the formation of a C-O-Cu bond on the porous-rich superficial of the catalyst; these covalent C-O-Cu bonds shortened the migration distance of electrons between Cu(II) and Cu(I) via Cu(I)-O-C-O-Cu(II) bridge. The construction of copper-containing covalent bonds in the catalyst resulted in efficient PMS activation for a rapid redox cycle of Cu(II)/Cu(I), triggering a series of reactions involving the continuous production of three highly active species (SO4·-, ·OH and 1O2). The rapid diffusion and transportation of the generated active species from porous structures directly attack typical pharmaceutically active compounds (PhACs), achieving superior catalytic performance. This study provides a new routine to construct a C-O-Cu bond for PMS activation by regulating the electron transfer to accelerate the redox behavior of copper species for environmental remediation.
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Affiliation(s)
- Ting Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Zhiliang Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Hua Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
| | - Yanling Qiu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Guohua Zhao
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China
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Rational Design of a Core–Shell-Shaped Flowerlike Mn0.05Cd0.95S@NiAl-LDH Structure for Efficient Hydrogen Evolution. Catal Letters 2020. [DOI: 10.1007/s10562-020-03346-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Metal organic framework derived heteroatoms and cyano ( C N) group co-decorated porous g-C3N4 nanosheets for improved photocatalytic H2 evolution and uranium(VI) reduction. J Colloid Interface Sci 2020; 570:125-134. [DOI: 10.1016/j.jcis.2020.02.091] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/17/2020] [Accepted: 02/23/2020] [Indexed: 11/21/2022]
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31
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Jia KL, Zhu ZS, Qu J, Jing YQ, Yu XJ, Abdelkrim Y, Hao SM, Yu ZZ. BiOBr/Ag6Si2O7 heterojunctions for enhancing visible light catalytic degradation performances with a sequential selectivity enabled by dual synergistic effects. J Colloid Interface Sci 2020; 561:396-407. [DOI: 10.1016/j.jcis.2019.11.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/31/2019] [Accepted: 11/01/2019] [Indexed: 11/28/2022]
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Liu X, Yang W, Chen L, Liu Z, Long L, Wang S, Liu C, Dong S, Jia J. Graphitic Carbon Nitride (g-C 3N 4)-Derived Bamboo-Like Carbon Nanotubes/Co Nanoparticles Hybrids for Highly Efficient Electrocatalytic Oxygen Reduction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4463-4472. [PMID: 31913599 DOI: 10.1021/acsami.9b18454] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The oxygen reduction reaction (ORR) is an extremely important reaction in many renewable energy-related devices. The sluggish kinetics of the ORR limits the development of many fuel cells. Design and synthesis of highly efficient nonprecious electrocatalysts are of vital importance for electrochemical reduction of oxygen. Herein, we develop a graphitic carbon nitride (g-C3N4)-derived bamboo-like carbon nanotubes/carbon-wrapped Co nanoparticles (BCNT/Co) electrocatalyst by a simple high-temperature pyrolysis and acid-leaching method. The catalytic performance of the as-designed electrocatalyst toward ORR outperforms the commercial Pt/C catalyst in alkaline solution. The onset potential of nonprecious BCNT/Co-800 catalyst was 1.12 V. The half-wave potential was 0.881 V. The result was superior to that of commercial Pt/C (0.827 V vs RHE). The Co nanoparticles, bamboo-like carbon nanotubes, defects, and Co-Nx active sites all result in the remarkable ORR activity, stability, and great methanol tolerance.
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Affiliation(s)
- Xiangjian Liu
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Wenxiu Yang
- School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 China
| | - Lulu Chen
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Zhenjie Liu
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Ling Long
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Siyu Wang
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Changyu Liu
- School of Biotechnology and Health Sciences , Wuyi University , Jiangmen , Guangdong 529020 , China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Jianbo Jia
- State Key Laboratory of Electroanalytical Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
- School of Biotechnology and Health Sciences , Wuyi University , Jiangmen , Guangdong 529020 , China
- University of Science and Technology of China , Hefei , Anhui 230026 , China
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33
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Jin X, Chen F, Jia D, Cao Y, Duan H, Long M. Facile strategy for the fabrication of noble metal/ZnS composites with enhanced photocatalytic activities. RSC Adv 2020; 10:4455-4463. [PMID: 35495247 PMCID: PMC9048999 DOI: 10.1039/c9ra07163f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 11/14/2019] [Indexed: 11/21/2022] Open
Abstract
The introduction of noble metal nanoparticles to photocatalysts can effectively improve the separation efficiency of the photogenerated electron–holes. Therefore, noble metal/ZnS composites were synthesized using a low-temperature solid-phase chemical method with sodium borohydride as the reducing agent. The characterization results showed that the noble metal/ZnS composites have been successfully obtained and that the noble metals were distributed on the surface of ZnS. The catalytic results suggested that the composites exhibited improved activity after introduction of noble metals, which can be attributed to the rapid migration of carriers and the enhancement of the light absorption, mainly owing to the tight combination between the ZnS and noble metals and the plasmon resonance effect of the noble metals. The catalytic mechanism was explored by using photoluminescence spectroscopy, photocurrent spectra, valence band X-ray photoelectron spectroscopy (XPS-VB) spectra and capture agent experiments, and a possible mechanism was proposed. This work provides a new strategy for the high-volume synthesis of noble metal-based composite photocatalysts, which could be helpful for sustainable development. The introduction of noble metal nanoparticles to photocatalysts can effectively improve the separation efficiency of the photogenerated electron–holes.![]()
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Affiliation(s)
- Xuekun Jin
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University Urumqi Xinjiang 830046 China
| | - Fengjuan Chen
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University Urumqi Xinjiang 830046 China .,School of Physics Science and Technology, Xinjiang University Urumqi 830046 Xinjiang PR China
| | - Dianzeng Jia
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University Urumqi Xinjiang 830046 China
| | - Yali Cao
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University Urumqi Xinjiang 830046 China
| | - Haiming Duan
- School of Physics Science and Technology, Xinjiang University Urumqi 830046 Xinjiang PR China
| | - Mengqiu Long
- Hunan Key Laboratory of Super Micro-structure and Ultrafast Process, Central South University Changsha 410083 China
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34
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Hao D, Liu C, Xu X, Kianinia M, Aharonovich I, Bai X, Liu X, Chen Z, Wei W, Jia G, Ni BJ. Surface defect-abundant one-dimensional graphitic carbon nitride nanorods boost photocatalytic nitrogen fixation. NEW J CHEM 2020. [DOI: 10.1039/d0nj04068a] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Defective g-C3N4 nanorods enable to boots the adsorption and cleavage of N2 molecules to achieve higher photocatalytic nitrogen fixation performance.
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35
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Zhang W, Li L, Gao Y, Zhang D. Graphitic carbon nitride-based materials for photocatalytic reduction of U( vi). NEW J CHEM 2020. [DOI: 10.1039/d0nj04519e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This work reports the photocatalytic reduction of U(vi) using g-C3N4-based materials and discusses the factors affecting the photocatalytic reduction of U(vi).
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Affiliation(s)
- Weizhuo Zhang
- Shaanxi Key Laboratory of Industrial Automation
- School of Mechanical Engineering
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Le Li
- Shaanxi Key Laboratory of Industrial Automation
- School of Mechanical Engineering
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Yanhong Gao
- Shaanxi Province Key Laboratory of Catalytic Foundation and Application
- School of Chemistry and Environment Science
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Dan Zhang
- Shaanxi Province Key Laboratory of Catalytic Foundation and Application
- School of Chemistry and Environment Science
- Shaanxi University of Technology
- Hanzhong 723001
- China
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36
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Paramanik L, Reddy KH, Parida KM. An energy band compactable B-rGO/PbTiO 3 p-n junction: a highly dynamic and durable photocatalyst for enhanced photocatalytic H 2 evolution. NANOSCALE 2019; 11:22328-22342. [PMID: 31725144 DOI: 10.1039/c9nr06378a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Reduced graphene oxide (rGO) intentionally doped with boron atoms is a promising tactic to extract bandgap energy and p-type semiconducting behavior from graphene-based materials. Moreover, the integration of p-type boron-doped rGO with an n-type material through a heterojunction interface exhibits complementary properties to restrict the fast recombination of charge carriers and enhance the photoreaction towards energy applications. Herein, we have prepared boron-doped rGO/PbTiO3 p-n heterojunctions via a hydrothermal method. The successful formation of an excellent p-n heterojunction was demonstrated by TEM, XPS and Raman analysis. The constructed boron-doped rGO/PbTiO3 p-n heterojunctions exhibit dramatic increases in photoelectrochemical and photocatalytic performance due to the presence of a space charge region at the interface of the two materials. The scenario also revealed the double-edge sword functions of B-rGO: the material itself (i) acts as a visible light active photocatalyst with a band gap energy of 2.7 eV and (ii) participates in enhanced charge transfer via the band edge alignment between B-rGO and PbTiO3, as elucidated from photoluminescence and electrochemical impedance studies. Furthermore, the optimal 2B-rGO/PT p-n heterojunction possesses outstanding repeatability and exhibited the highest rate of hydrogen evolution, i.e. 293.79 μmol h-1 under visible light irradiation. The results for these materials may provide advanced insight into the design of next-generation high-efficiency black graphene-based heterojunctions.
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Affiliation(s)
- Lekha Paramanik
- Centre for Nanoscience and Nanotechnology, SOA (Deemed to be University), Bhubaneswar 751030, Odisha, India.
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37
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Rehman GU, Tahir M, Goh PS, Ismail AF, Samavati A, Zulhairun AK. Facile synthesis of GO and g-C 3N 4 nanosheets encapsulated magnetite ternary nanocomposite for superior photocatalytic degradation of phenol. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:1066-1078. [PMID: 31434184 DOI: 10.1016/j.envpol.2019.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/16/2019] [Accepted: 07/03/2019] [Indexed: 06/10/2023]
Abstract
In this study, the synthesis of Fe3O4@GO@g-C3N4 ternary nanocomposite for enhanced photocatalytic degradation of phenol has been investigated. The surface modification of Fe3O4 was performed through layer-by-layer electrostatic deposition meanwhile the heterojunction structure of ternary nanocomposite was obtained through sonicated assisted hydrothermal method. The photocatalysts were characterized for their crystallinity, surface morphology, chemical functionalities, and band gap energy. The Fe3O4@GO@g-C3N4 ternary nanocomposite achieved phenol degradation of ∼97%, which was significantly higher than that of Fe3O4@GO (∼75%) and Fe3O4 (∼62%). The enhanced photoactivity was due to the efficient charge carrier separation and desired band structure. The photocatalytic performance was further enhanced with the addition of hydrogen peroxide, in which phenol degradation up to 100% was achieved in 2 h irradiation time. The findings revealed that operating parameters have significant influences on the photocatalytic activities. It was found that lower phenol concentration promoted higher activity. In this study, 0.3 g of Fe3O4@GO@g-C3N4 was found to be the optimized photocatalyst for phenol degradation. At the optimized condition, the reaction rate constant was reported as 6.96 × 10-3 min-1. The ternary photocatalyst showed excellent recyclability in three consecutive cycles, which confirmed the stability of this ternary nanocomposite for degradation applications.
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Affiliation(s)
- Ghani Ur Rehman
- Advanced Membrane Technology Research Center (AMTEC), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Muhammad Tahir
- Chemical Reaction Engineering Group (CREG), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bharu, Malaysia
| | - P S Goh
- Advanced Membrane Technology Research Center (AMTEC), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - A F Ismail
- Advanced Membrane Technology Research Center (AMTEC), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia.
| | - Alireza Samavati
- Advanced Membrane Technology Research Center (AMTEC), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - A K Zulhairun
- Advanced Membrane Technology Research Center (AMTEC), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
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38
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Wang K, Li J, Zhang G. Ag-Bridged Z-Scheme 2D/2D Bi 5FeTi 3O 15/g-C 3N 4 Heterojunction for Enhanced Photocatalysis: Mediator-Induced Interfacial Charge Transfer and Mechanism Insights. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27686-27696. [PMID: 31282639 DOI: 10.1021/acsami.9b05074] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Heterojunction photocatalysts have attracted widespread interest in photocatalysis because of their high-efficiency interfacial charge-transfer characteristics of nanoarchitectures. In this study, Ag-bridged 2D/2D Bi5FeTi3O15/ultrathin g-C3N4 Z-scheme heterojunction photocatalysts with powerful interfacial charge transfer has been synthesized via a facile ultrasound method coupled with a photoreduction strategy for efficient photocatalytic degradation of antibiotics. The morphology analysis displays that the bridged Ag nanoparticles were anchored on the interface of layered Bi5FeTi3O15 and ultrathin g-C3N4 nanosheets. Owing to its unique 2D/2D ternary heterostructure, the Bi5FeTi3O15/2%Ag/10% ultrathin g-C3N4 composite exhibited the best tetracycline degradation performance under visible-light and simulated solar irradiation. Meanwhile, the intermediates and degradation pathways were proposed by a liquid-phase mass spectrometry system. Characterizations and density functional theory studies together verify that the matched band structure of Bi5FeTi3O15 and g-C3N4 could induce a superfast Z-scheme interfacial charge-transfer path. More importantly, bridged Ag nanoparticles in the 2D/2D heterojunction extended the light absorption range and prolonged the lifetime of photogenerated electron-holes induced by Bi5FeTi3O15. This work affords a promising approach for designing multicomponent Z-scheme heterojunction photocatalysts for highly efficient photocatalytic application.
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39
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Shao Z, Zhang D, Li H, Su C, Pu X, Geng Y. Fabrication of MIL-88A/g-C3N4 direct Z-scheme heterojunction with enhanced visible-light photocatalytic activity. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.03.040] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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40
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Jiang L, Wang K, Wu X, Zhang G, Yin S. Amorphous Bimetallic Cobalt Nickel Sulfide Cocatalysts for Significantly Boosting Photocatalytic Hydrogen Evolution Performance of Graphitic Carbon Nitride: Efficient Interfacial Charge Transfer. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26898-26908. [PMID: 31268294 DOI: 10.1021/acsami.9b07311] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Noble metals usually work as the cocatalyst for photocatalytic water splitting, but their rare and expensive properties narrowed their wide development. Transition-metal sulfides have appeared to be promising non-noble metal cocatalysts in the hydrogen evolution reaction (HER) to meet future energy demands. Meanwhile, many studies focus on the fabrication of bimetallic catalysts because of their remarkably superior catalytic activity compared with monometallic substances. Herein, amorphous bimetallic cobalt nickel sulfide (CoNiSx) was fabricated to work as a cocatalyst in the photocatalytic H2 evolution reaction, which can couple with pristine graphitic carbon nitride (g-C3N4). CoNiSx-CN exhibits a larger specific surface area compared with g-C3N4, making it possess more reaction active sites. Moreover, the contacted interface in the CoNiSx-CN composite photocatalyst contributes to higher separation efficiency of photogenerated carriers, which was proved by experimental and theoretical calculations. More importantly, the theoretical calculation also verified that CoNiSx-CN has relatively closer Gibbs free energy to zero than pure g-C3N4 and corresponding monometallic cocatalyzed g-C3N4. Therefore, the prepared CoNiSx-CN composite exhibited a dramatic photocatalytic HER performance of 2.366 μmol mg-1 h-1, which is about 76-fold higher in comparison with pristine g-C3N4 and comparable to g-C3N4 with Pt as a cocatalyst under 420 nm light irradiation. This study reveals a promising and efficient bimetallic cocatalyst for the photocatalytic H2 evolution reaction.
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Affiliation(s)
- Lisha Jiang
- School of Resources and Environmental Engineering , Wuhan University of Technology , 122 Luoshi Road , Wuhan 430070 , China
| | - Kai Wang
- School of Resources and Environmental Engineering , Wuhan University of Technology , 122 Luoshi Road , Wuhan 430070 , China
| | - Xiaoyong Wu
- School of Resources and Environmental Engineering , Wuhan University of Technology , 122 Luoshi Road , Wuhan 430070 , China
| | - Gaoke Zhang
- School of Resources and Environmental Engineering , Wuhan University of Technology , 122 Luoshi Road , Wuhan 430070 , China
| | - Shu Yin
- Institute of Multidisciplinary Research for Advanced Materials , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan
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41
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Li N, Ding Y, Wu J, Zhao Z, Li X, Zheng YZ, Huang M, Tao X. Efficient, Full Spectrum-Driven H 2 Evolution Z-Scheme Co 2P/CdS Photocatalysts with Co-S Bonds. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22297-22306. [PMID: 31244024 DOI: 10.1021/acsami.9b03965] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Exploring high-efficiency, low-cost, and stable photocatalysts that enable full solar spectrum including UV, visible, and near-infrared (NIR) light utilization for photocatalytic hydrogen generation still faces huge challenge. Herein, a Co2P/CdS Z-scheme photocatalyst without a noble metal is rationally fabricated to achieve ultrabroad UV-vis-NIR harvesting. Compared to Pt/CdS, CdS, and Co2P, the optimized Co2P/CdS exhibits much more outstanding performance with the H2 generation rates of 262.16, 66.98, and 3.93 mmol/g/h under solar, visible (780 nm > λ > 420 nm), and NIR (λ > 780 nm) light, respectively. Particularly, 10% Co2P/CdS displays a prominent apparent quantum efficiency value of 2.26% at 700 nm. The Z-scheme transform route can effectively enhance the separation of charge carriers in Co2P/CdS for UV-vis-driven HER, as confirmed by photoluminescence and photoelectrochemical measurements. More importantly, the Co-S bonds at the interface demonstrated by Fourier transform infrared, Raman (mapping), and X-ray photoelectron spectroscopy and density functional theory calculations can act as a "bridge" for charge transfer, thereby enhancing the full spectrum-driven H2 evolution. To the best of our knowledge, this is a rare research on full spectrum-driven photocatalytic HER without a noble metal.
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Affiliation(s)
| | - Yunxuan Ding
- School of Chemistry & Chemical Engineering , Queen's University Belfast , Belfast BT9 5AG , U.K
| | | | | | | | | | - Meilan Huang
- School of Chemistry & Chemical Engineering , Queen's University Belfast , Belfast BT9 5AG , U.K
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42
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Wang L, Li Z, Chen J, Huang Y, Zhang H, Qiu H. Enhanced photocatalytic degradation of methyl orange by porous graphene/ZnO nanocomposite. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 249:801-811. [PMID: 30953942 DOI: 10.1016/j.envpol.2019.03.071] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/08/2019] [Accepted: 03/18/2019] [Indexed: 05/21/2023]
Abstract
Degrading aquatic organic pollutants efficiently is very important but strongly relied on the design of photocatalysts. Porous graphene could increase photocatalytic performance of ZnO nanoparticles by promoting the effective charge separation of electron-hole pairs if they can be composited. Herein, porous graphene, ZnO nanoparticles and porous graphene/ZnO nanocomposite were prepared by fine tuning of partial combustion, which graphene oxide imperfectly covered by the layered Zn salt was combusted under muffle furnace within few minutes. Resulting ZnO nanoparticles (32-72 nm) are dispersed uniformly on the surface of graphene sheets, the pore sizes of porous graphene are in the range from ∼3 to ∼52 nm. The synthesized porous graphene/ZnO nanocomposite was confirmed to show enhanced efficiency under natural sunlight irradiation compared with pure ZnO nanoparticles. Using porous graphene/ZnO nanocomposite, 100% degradation of methyl orange can be achieved within 150 min. The synergetic effect of photocatalysis and adsorption is main reason for excellent MO degradation of PG/ZnO nanocomposite. This work may offer a new route to accurately prepare porous graphene-based nanocomposite and open a door of their applications.
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Affiliation(s)
- Li Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Zhan Li
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jia Chen
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yanni Huang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Haijuan Zhang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hongdeng Qiu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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43
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Gebreslassie G, Bharali P, Chandra U, Sergawie A, Baruah PK, Das MR, Alemayehu E. Hydrothermal Synthesis of g‐C
3
N
4
/NiFe
2
O
4
Nanocomposite and Its Enhanced Photocatalytic Activity. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gebrehiwot Gebreslassie
- Department of Chemical SciencesTezpur University Napaam 784028 Assam India
- Faculty of Materials Science and Engineering, Jimma Institute of TechnologyJimma University Jimma 378 Ethiopia
- Department of Industrial ChemistryAddis Ababa Science and Technology University Addis Ababa 16417 Ethiopia
| | - Pankaj Bharali
- Department of Chemical SciencesTezpur University Napaam 784028 Assam India
| | - Umesh Chandra
- Faculty of Materials Science and Engineering, Jimma Institute of TechnologyJimma University Jimma 378 Ethiopia
| | - Assefa Sergawie
- Department of Industrial ChemistryAddis Ababa Science and Technology University Addis Ababa 16417 Ethiopia
| | - Purna K. Baruah
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR‐North East Institute of Science and Technology Jorhat 785006 Assam India
- Academy of Scientific and Innovative Research, CSIR‐NEIST Campus India
| | - Manash R. Das
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR‐North East Institute of Science and Technology Jorhat 785006 Assam India
- Academy of Scientific and Innovative Research, CSIR‐NEIST Campus India
| | - Esayas Alemayehu
- Faculty of Civil and Environmental Engineering, Jimma Institute of TechnologyJimma University Jimma 378 Ethiopia
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Zhao X, Zhang Y, Zhao Y, Tan H, Zhao Z, Shi H, Wang E, Li Y. AgxH3−xPMo12O40/Ag nanorods/g-C3N4 1D/2D Z-scheme heterojunction for highly efficient visible-light photocatalysis. Dalton Trans 2019; 48:6484-6491. [DOI: 10.1039/c9dt00744j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Synergism of light absorption, 1D/2D structure, good interface contact, and Z-scheme endowed the AgxH3−xPMo12O40/Ag/C3N4 composite with excellent performance.
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Affiliation(s)
- Xinyu Zhao
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Yi Zhang
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Yingnan Zhao
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Huaqiao Tan
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Zhao Zhao
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Hongfei Shi
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Enbo Wang
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Yangguang Li
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
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