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Mod B, Baskar AV, Bahadur R, Tavakkoli E, Van Zwieten L, Singh G, Vinu A. From cane to nano: advanced nanomaterials derived from sugarcane products with insights into their synthesis and applications. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2024; 25:2393568. [PMID: 39238510 PMCID: PMC11376298 DOI: 10.1080/14686996.2024.2393568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/08/2024] [Accepted: 08/14/2024] [Indexed: 09/07/2024]
Abstract
Sugarcane-based products are inherently rich in elements such as silicon, carbon and nitrogen. As such, these become ideal precursors for utilization in a wide array of application fields. One of the appealing areas is to transform them into nanomaterials of high interest that can be employed in several prominent applications. Among nanomaterials, sugarcane products based on silica nanoparticles (SNPs), carbon dots (CDs), metal/metal oxide-based NPs, nanocellulose, cellulose nanofibers (CNFs), and nano biochar are becoming increasingly reported. Through manipulation of the experimental conditions and choosing suitable starting precursors and elements, it is possible to devise these nanomaterials with highly desired properties suited for specific applications. The current review presents the findings from the recent literature wherein an effort has been made to convey new development in the field of sugarcane-based products for the synthesis of the above-mentioned nanomaterials. Various nanomaterials were systematically discussed in terms of their synthesis and application perspectives. Wherever possible, a comparative analysis was carried out to highlight the potential of sugarcane products for the intended purpose as compared to other biomass-based materials. This review is expected to stand out in delivering an up-to-date survey of the literature and provide readers with necessary directions for future research.
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Affiliation(s)
- Bhavya Mod
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment (CESE), School of Engineering, The University of Newcastle, Callaghan, NSW, Australia
| | - Arun V Baskar
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment (CESE), School of Engineering, The University of Newcastle, Callaghan, NSW, Australia
| | - Rohan Bahadur
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment (CESE), School of Engineering, The University of Newcastle, Callaghan, NSW, Australia
| | - Ehsan Tavakkoli
- School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA, Australia
| | - Lukas Van Zwieten
- NSW Department of Primary Industries, Wollongbar Primary Industries Institute, Wollongbar, NSW, Australia
| | - Gurwinder Singh
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment (CESE), School of Engineering, The University of Newcastle, Callaghan, NSW, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment (CESE), School of Engineering, The University of Newcastle, Callaghan, NSW, Australia
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Sun R, Liu P, Dong Y, Yang Q, Ma Y. A dual-mode green emissive fluorescent probe for real-time detection of doxycycline in milk using a smartphone sensing platform. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6551-6560. [PMID: 37997770 DOI: 10.1039/d3ay01850d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Real-time quantitative analysis of tetracyclines is urgently needed to provide consumers with early warning of potential risks. Herein, we report a dual-mode green emissive fluorescent probe, which refers to the liquid mode and the solid mode of electrospun films doped with nitride-doped carbon nanosheets (NCNSs) for real-time detection of doxycycline (DOX). Highly fluorescent NCNSs were prepared by low-temperature solid treatment of urea and sodium citrate. With the addition of DOX, the green emission intensity of NCNSs at 475 nm can be obviously reduced. Method validation exhibited a good linear relationship in 0.05-150 μM between the fluorescence quenching of NCNSs and the concentration of DOX with a limit of detection (LOD) of 0.0127 μM. Furthermore, the immobilization of NCNSs in PAN carriers forming electrospun films stabilizes the green fluorescence of NCNSs. Additionally, electrospun films integrated into a smartphone were developed for real-time detection of DOX with LOD of 0.285 μM. Additionally, DOX in milk was monitored with satisfactory recoveries. Therefore, the integration of the smartphone and electrospun film provides a promising and convenient method for real-time identification of DOX in food analysis.
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Affiliation(s)
- Ruiqing Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Ping Liu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Yingjia Dong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Qingli Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Yongchao Ma
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
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Zeng M, Wang Y, Liu M, Wei Y, Wen J, Zhang Y, Chen T, He N, Fan P, Dai X. Potential Efficacy of Herbal Medicine-Derived Carbon Dots in the Treatment of Diseases: From Mechanism to Clinic. Int J Nanomedicine 2023; 18:6503-6525. [PMID: 37965279 PMCID: PMC10642355 DOI: 10.2147/ijn.s431061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/24/2023] [Indexed: 11/16/2023] Open
Abstract
Carbon dots (CDs), a crucial component of nanomaterials, are zero-dimensional nanomaterials with carbon as the backbone structure and smaller than 10 nm. Due to their beneficial characteristics, they are widely used in biomedical fields such as biosensors, drug delivery, bio-imaging, and interactions with DNA. Interestingly, a novel type of carbon dot, generated by using herbal medicines as synthetic raw materials, has emerged as the most recent incomer in the family of CDs with the extensive growth in the number of materials selected for carbon dots synthesis. Herbal medicine-derived carbon dots (HM-CDs) have been employed in the biomedical industry, and are rapidly emerging as "modern nanomaterials" due to their unique structures and exceptional capabilities. Emerging trends suggest that their specific properties can be used in bleeding disorders, gastrointestinal disorders, inflammation-related diseases, and other common intractable diseases including cancer, menopausal syndrome, central nervous system disorders, and pain of various forms and causes. In addition, HM-CDs have been found to have organ-protective and antioxidant properties, as evidenced by extensive studies. This research provides a more comprehensive understanding of the biomedical applications of HM-CDs for the aforementioned disorders and investigates the intrinsic pharmacological activities and mechanisms of these HM-CDs to further advance their clinical applications.
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Affiliation(s)
- Mingtang Zeng
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Yao Wang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Maozhu Liu
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Yuxun Wei
- Department of Pharmacy, Zhongjiang County People’s Hospital, Deyang, 618000, People’s Republic of China
| | - Jie Wen
- Department of Pharmacy, Shehong Municipal Hospital of Traditional Chinese Medicine, Shehong, 629600, People’s Republic of China
| | - Yuchen Zhang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Tao Chen
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, People’s Republic of China
| | - Nianyu He
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Ping Fan
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Xinhua Dai
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
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Wudil Y, Ahmad U, Gondal M, Al-Osta MA, Almohammedi A, Said R, Hrahsheh F, Haruna K, Mohammed J. Tuning of Graphitic Carbon Nitride (g-C3N4) for Photocatalysis: A Critical Review. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Zeng X, Hou M, Zhu P, Yuan M, Ouyang S, Lu Q, Zhao C, Wang H, Du F, Zeng G, Zhang Y. g-C 3N 5-dots as fluorescence probes prepared by an alkali-assisted hydrothermal method for cell imaging. RSC Adv 2022; 12:26476-26484. [PMID: 36275159 PMCID: PMC9478806 DOI: 10.1039/d2ra03934f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 08/18/2022] [Indexed: 11/21/2022] Open
Abstract
Carbon nitride materials have become one of the highly explored carbon-based nanomaterials due to their unique properties. Herein, the novel graphitic carbon nitride quantum dots (g-C3N5-dots) were synthesized using an alkali-assisted hydrothermal method. The proposed strategy was simple, time-saving and the entire synthetic process only takes 60 min. And the prepared g-C3N5-dots showed excellent dispersion and good stability in water. What is more, the g-C3N5-dots displayed bright blue fluorescence with a high quantum yield of 12%. It was found that the g-C3N5-dots exhibited peroxidase-like activity, good biocompatibility and low cytotoxicity and can be successfully applied in cell imaging. The proposed method opens a new and efficient way for the preparation of fluorescent g-C3N5-dots and facilitates g-C3N5-dots for bioimaging and related biological sensing applications.
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Affiliation(s)
- Xiangwang Zeng
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Mengke Hou
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Pan Zhu
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Minyi Yuan
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Sitao Ouyang
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Qiujun Lu
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Chenxi Zhao
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Haiyan Wang
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Fuyou Du
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Guangsheng Zeng
- College of Biological and Chemical Engineering, Changsha University Changsha 410022 China +86-731-84261382 +86-84261506
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081 China
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Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.10.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nugraha MW, Zainal Abidin NH, Sambudi NS. Synthesis of tungsten oxide/ amino-functionalized sugarcane bagasse derived-carbon quantum dots (WO 3/N-CQDs) composites for methylene blue removal. CHEMOSPHERE 2021; 277:130300. [PMID: 33774232 DOI: 10.1016/j.chemosphere.2021.130300] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/07/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
In this present study, the tungsten oxide/amino-functionalized sugarcane bagasse derived-carbon quantum dots (WO3/N-CQDs) composite has successfully been prepared through a simple mixing process. The WO3 was synthesized through a precipitation method, and CQDs were amino-functionalized using ethylenedinitrilotetraacetic acid (EDTA) and ethylenediamine (EDA) through one-pot hydrothermal method. It is revealed that N-CQDs incorporation into WO3 alters the bandgap energy, crystallinity, surface area, and photoluminescence (PL) properties. The produced composites exhibit higher monoclinic WO3 crystallinity, larger surface area, lower bandgap energy and quenched photoluminescence intensity. The as-prepared WO3/N-CQDs composites exhibit better adsorption and photocatalytic degradation performance of methylene blue (MB) than the pristine WO3. It shows that the combination of N-CQDs and WO3 enhanced visible light absorption, by lowering the bandgap energy of WO3 from 2.175 to 1.495 eV. The best performance composite is WO3/N-CQDs EDA 2.5% with an efficiency of 96.86%, removal rate constant of 0.02017/min, and chemical oxidation demand (COD) removal efficiency achieved 84.61%. Moreover, the WO3/N-CQDs EDA 2.5% shows a significant photocatalytic activity even at higher MB initial concentration with 92.93% removal for 50 ppm MB. Subsequently, the composite also has good stability after a sequential 3-times cycle of degradation with 86.85% removal. The increasing photocatalytic performance is affected by the quenching effect of PL and lower bandgap energy. The lower intensity of the PL indicates the reduced charge carrier recombination resulting in increased photocatalytic activity. The combination of N-CQDs and WO3 resulted in improved photodegradation, which shows its significant potential to be utilized for wastewater treatment.
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Affiliation(s)
- Muhammad Wahyu Nugraha
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, 32610, Malaysia
| | - Nur Hafizah Zainal Abidin
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, 32610, Malaysia
| | - Nonni Soraya Sambudi
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, 32610, Malaysia; Centre of Urban Resource Sustainability (CUReS), Universiti Teknologi PETRONAS, Seri Iskandar, Perak, 32610, Malaysia.
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Eskalen H, Çeşme M, Kerli S, Özğan Ş. Green synthesis of water-soluble fluorescent carbon dots from rosemary leaves: Applications in food storage capacity, fingerprint detection, and antibacterial activity. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820953823] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Blue fluorescent carbon dots are synthesized via a one-step hydrothermal method using rosemary leaves as a carbon source. The obtained carbon dots are characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, UV-Vis, FTIR, and fluorescence spectrometry. The results show that carbon dots gave a maximum emission peak at 422 nm when excited at 332 nm. The average particle diameter of the synthesized spherical carbon dots is found to be 16.13 nm with a 4.6-nm standard deviation. The diameters of the produced carbon dots vary, as is evident from standard deviation heights, resulting in multicolor emission spectra. The fruit storage experiment is carried out by investigating the qualitative antioxidant ability of the produced carbon dots. The results obtained for polyvinyl alcohol–carbon dot–coated samples differ remarkably compared to polyvinyl alcohol–coated samples only. The polyvinyl alcohol–carbon dot composition is used in latent fingerprint detection applications. In analyses made on a glass surface, fingerprints cannot be monitored on the glass surface with the polyvinyl alcohol layer under ultraviolet light, while they are observed on the surface covered with the polyvinyl alcohol–carbon dot composition. Moreover, biological activity against Gram-positive, Gram-negative, and yeast strains are investigated.
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Affiliation(s)
- Hasan Eskalen
- Vocational School of Health Services, Department of Medical Services and Techniques, Opticianry Program, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
- Department of Physics, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
| | - Mustafa Çeşme
- Department of Chemistry, Faculty of Art and Sciences, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
| | - Süleyman Kerli
- Department of Energy Systems Engineering, Kahramanmaraş İstiklal University, Kahramanmaraş, Turkey
| | - Şükrü Özğan
- Department of Physics, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
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9
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Gan JY, Chong WC, Sim LC, Koo CH, Pang YL, Mahmoudi E, Mohammad AW. Novel Carbon Quantum Dots/Silver Blended Polysulfone Membrane with Improved Properties and Enhanced Performance in Tartrazine Dye Removal. MEMBRANES 2020; 10:membranes10080175. [PMID: 32756315 PMCID: PMC7465473 DOI: 10.3390/membranes10080175] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023]
Abstract
This study produced a novel polysulfone (PSF) membrane for dye removal using lemon-derived carbon quantum dots-grafted silver nanoparticles (Ag/CQDs) as membrane nanofiller. The preparation of CQDs was completed by undergoing hydrothermal treatment to carbonize the pulp-free lemon juice into CQD solution. The CQD solution was then coupled with Ag nanoparticles to form Ag/CQDs nanohybrid. The synthesized powders were characterized in terms of morphologies, functional groups and surface charges. A set of membranes was fabricated with different loadings of Ag/CQDs powder using the nonsolvent-induced phase separation (NIPS) method. The modified membranes were studied in terms of morphology, elemental composition, hydrophilicity and pore size. In addition, pure water flux, rejection test and fouling analysis of the membranes were evaluated using tartrazine dye. From the results, 0.5 wt % of Ag/CQD was identified as the optimum loading to be incorporated with the pristine PSF membrane. The modified membrane exhibited an excellent pure water permeability and dye rejection with improvements of 169% and 92%, respectively. In addition, the composite membrane also experienced lower flux decline, higher reversible fouling and lower irreversible fouling. This study has proven that the addition of CQD additives into membrane greatly improves the polymeric membrane’s properties and filtration performance.
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Affiliation(s)
- Jin Yee Gan
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (J.Y.G.); (L.C.S.); (Y.L.P.)
| | - Woon Chan Chong
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (J.Y.G.); (L.C.S.); (Y.L.P.)
- Correspondence:
| | - Lan Ching Sim
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (J.Y.G.); (L.C.S.); (Y.L.P.)
| | - Chai Hoon Koo
- Department of Civil Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia;
| | - Yean Ling Pang
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (J.Y.G.); (L.C.S.); (Y.L.P.)
| | - Ebrahim Mahmoudi
- Chemical Engineering Programme, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (E.M.); (A.W.M.)
- Research Center for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Abdul Wahab Mohammad
- Chemical Engineering Programme, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (E.M.); (A.W.M.)
- Research Center for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
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Rapid conjunction of 1D carbon nanotubes and 2D graphitic carbon nitride with ZnO for improved optoelectronic properties. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01474-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Fernandes RA, Sampaio MJ, Faria JL, Silva CG. Aqueous solution photocatalytic synthesis of p-anisaldehyde by using graphite-like carbon nitride photocatalysts obtained via the hard-templating route. RSC Adv 2020; 10:19431-19442. [PMID: 35515447 PMCID: PMC9054040 DOI: 10.1039/d0ra02746d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/11/2020] [Indexed: 11/21/2022] Open
Abstract
Graphite-like carbon nitride (GCN)-based materials were developed via the hard-templating route, using dicyandiamide as the GCN precursor and silica templates. That resulted in urchin-like GCN (GCN-UL), 3D ordered macroporous GCN (GCN-OM) and mesoporous GCN (GCN-MP). The introduction of silica templates during GCN synthesis produced physical defects on its surface, as confirmed by SEM analysis, increasing their specific surface area. A high amount of nitrogen vacancies is present in modified catalysts (revealed by XPS measurements), which can be related to an increase in the reactive sites available to catalyse redox reactions. The textural and morphological modifications induced in GCN an enhanced light absorption capacity and reduced electron/hole recombination rate, contributing to its improved photocatalytic performance. In the photocatalytic conversion of p-anisyl alcohol to p-anisaldehyde in deoxygenated aqueous solutions under UV-LED irradiation, the GCN-UL was the best photocatalyst reaching 60% yield at 64% conversion for p-anisaldehyde production after 240 min of reaction. Under oxygenated conditions (air), the process efficiency was increased to 79% yield at 92% conversion only after 90 min reaction. The GCN-based photocatalyst kept its performance when using visible-LED radiation under air atmosphere. Trapping of photogenerated holes and radicals by selective scavengers showed that under deoxygenated conditions, holes played the primary role in the p-anisaldehyde synthesis. Under oxygenated conditions, the process is governed by the effect of reactive oxygen species, namely superoxide radicals, with a significant contribution from holes.
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Affiliation(s)
- Raquel A Fernandes
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
| | - Maria J Sampaio
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
| | - Joaquim L Faria
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
| | - Cláudia G Silva
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
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Hak CH, Leong KH, Chin YH, Saravanan P, Tan ST, Chong WC, Sim LC. Water hyacinth derived carbon quantum dots and g-C3N4 composites for sunlight driven photodegradation of 2,4-dichlorophenol. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2840-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Vashisht D, Sharma E, Kaur M, Vashisht A, Mehta SK, Singh K. Solvothermal assisted phosphate functionalized graphitic carbon nitride quantum dots for optical sensing of Fe ions and its thermodynamic aspects. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117773. [PMID: 31740119 DOI: 10.1016/j.saa.2019.117773] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
A facile method has been proposed for the determination of Ferrous (Fe(II)) and Ferric (Fe(III)) ions using phosphate functionalized graphitic carbon nitride quantum dots (Ph-g-CNQDs) in an aqueous medium. The easy solvothermal procedure using oleic acid as the solvent yielded the Ph-g-CNQDs in less than 30 min. The communication among the Fe(II) and Fe(III) with Ph-g-CNQDs caused quenching of the blue Ph-g-CNQDs fluorescence signals. The Ph-g-CNQDs have been successfully characterized using X-ray diffractometry (XRD), X-ray Photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM), Fourier Transform Infrared (FT-IR) spectroscopy, UV-vis absorption and photoluminescence spectrophotometry. The temperature dependent behavior of the Ph-g-CNQDs was also observed and various thermodynamic parameters have also been evaluated. The Ph-g-CNQDs displayed an excellent quantum yield of 60.54% using quinine sulfate as the standard reference. The developed method has been applied to water samples collected from different sources and good recoveries were observed which entitles this method as apt for real time monitoring.
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Affiliation(s)
- Devika Vashisht
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Ekta Sharma
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi 174103, India
| | - Manpreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Aseem Vashisht
- Department of Physics, Panjab University, Chandigarh 160014, India
| | - S K Mehta
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Kulvinder Singh
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi 174103, India.
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Jamila GS, Sajjad S, Leghari SAK, Long M. Nitrogen doped carbon quantum dots and GO modified WO 3 nanosheets combination as an effective visible photo catalyst. JOURNAL OF HAZARDOUS MATERIALS 2020; 382:121087. [PMID: 31476720 DOI: 10.1016/j.jhazmat.2019.121087] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
Nitrogen doped carbon quantum dots (NCQDs) based highly efficient ternary photocatalyst are fabricated by modifying surface of GO incorporated WO3 nano-sheets. XRD confirmed the formation of monoclinicWO3 nano-sheets. All the characteristic peaks of WO3, GO and NCQDs are obvious in XRD patterns of WO3/GO/NCQDs ternary photocatalysts confirming successful fabrication of the photocatalysts. SEM images showed that WO3 host matrix is distorted after incorporation of GO and NCQDs owing to lower interfacial tension. The surface of WO3 nano-sheets is modified with morphological defects making more active sites available. UV-vis spectra exhibited extended visible light absorption and remarkable reduction of WO3 band gap energy. The photoluminescence spectra confirmed the efficient charge separation in NCQDs modified ternary photocatalyst. The synthesized composites were applied for the photocatalytic degradation of harmful organic dye i.e. methyl orange (MO). The ternary composites represented the excellent photocatalytic activity as compared to binary and pure WO3 photocatalysts. This enhanced photocatalytic activity is attributed to the availability of active sites, extended light absorption in visible region and enhanced charge separation efficiency.
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Affiliation(s)
| | | | | | - Mingce Long
- School of Environmental Science and Engineering Shanghai Jiao Tong University, Shanghai 200240, China
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15
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Koe WS, Lee JW, Chong WC, Pang YL, Sim LC. An overview of photocatalytic degradation: photocatalysts, mechanisms, and development of photocatalytic membrane. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:2522-2565. [PMID: 31865580 DOI: 10.1007/s11356-019-07193-5] [Citation(s) in RCA: 238] [Impact Index Per Article: 47.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 11/27/2019] [Indexed: 05/12/2023]
Abstract
Photocatalysis is an ecofriendly technique that emerged as a promising alternative for the degradation of many organic pollutants. The weaknesses of the present photocatalytic system which limit their industrial applications include low-usage of visible light, fast charge recombination, and low migration ability of the photo-generated electrons and holes. Therefore, various elements such as noble metals and transition metals as well as non-metals and metalloids (i.e., graphene, carbon nanotube, and carbon quantum dots) are doped into the photocatalyst as co-catalysts to enhance the photodegradation performance. The incorporation of the co-catalyst which alters the photocatalytic mechanism was discussed in detail. The application of photocatalysts in treating persistent organic pollutants such as pesticide, pharmaceutical compounds, oil and grease and textile in real wastewater was also discussed. Besides, a few photocatalytic reactors in pilot scale had been designed for the effort of commercializing the system. In addition, hybrid photocatalytic system integrating with membrane filtration together with their membrane fabrication methods had also been reviewed. This review outlined various types of heterogeneous photocatalysts, mechanism, synthesis methods of biomass supported photocatalyst, photocatalytic degradation of organic substances in real wastewater, and photocatalytic reactor designs and their operating parameters as well as the latest development of photocatalyst incorporated membrane.
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Affiliation(s)
- Weng Shin Koe
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, 43000, Kajang, Selangor, Malaysia
| | - Jing Wen Lee
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, 43000, Kajang, Selangor, Malaysia
| | - Woon Chan Chong
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, 43000, Kajang, Selangor, Malaysia.
| | - Yean Ling Pang
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, 43000, Kajang, Selangor, Malaysia
| | - Lan Ching Sim
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, 43000, Kajang, Selangor, Malaysia
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16
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Fluorescent N/Al Co-Doped Carbon Dots from Cellulose Biomass for Sensitive Detection of Manganese (VII). J Fluoresc 2019; 29:1291-1300. [PMID: 31707509 DOI: 10.1007/s10895-019-02452-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 10/01/2019] [Indexed: 01/06/2023]
Abstract
Development of metallic and nonmetallic heteroatom doped carbon dots have gained attention due to their enhanced physicochemical and photoluminescence properties. In this study, a facile one pot hydrothermal carbonisation approach was taken to synthesise nitrogen, aluminum co-doped carbon dots (N/Al-CDs) with a photoluminescence quantum yield of 28.7%. Durian shell, a cellulose biomass waste, was used as the primary carbon source and compared to previously reported cellulose based carbon dots, this study presents one of the highest quantum yields. The structural and fluorescent properties of the synthesised N/Al-CDs were characterized through X-ray photoelectron spectroscopy (XPS), fluorescence spectra, and Fourier transform infrared spectroscopy (FTIR). The maximum emission was at 415 nm upon excitation at 345 nm. The synthesised N/Al-CDs were resistant to photobleaching and highly photostable within the pH, ionic strength and temperature variations investigated. The transmission electron microscopy (TEM) images showed particles were quasi-spherical and well dispersed with an average diameter of 10.0 nm. Further, the N/Al-CDs was developed as a fluorescence sensor for highly selective and sensitive detection of Mn (VII) ions. A linear relationship was developed over a concentration range of 0-100 μM while the limit of detection was 46.8 nM. Application of the sensor for detection of Manganese (VII) to two real water samples showed relative standard deviation was less than 3.9% and 1.3%, respectively.
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17
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Non-thermal plasma enhanced dry reforming of CH4 with CO2 over activated carbon supported Ni catalysts. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110486] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Yang H, Li E, Zhou B, Wang Y, Li P, Xia S. Preparation and Characterization of a g-C3N4/LSACF Composite and Application in RhB Degradation. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01302-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Semeniuk M, Yi Z, Poursorkhabi V, Tjong J, Jaffer S, Lu ZH, Sain M. Future Perspectives and Review on Organic Carbon Dots in Electronic Applications. ACS NANO 2019; 13:6224-6255. [PMID: 31145587 DOI: 10.1021/acsnano.9b00688] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Over the span of the past decade, carbon dots (CDs) synthesized from renewable organic resources (organic CDs) have gathered a considerable amount of attention for their photoluminescent properties. This review will focus on organic CDs synthesized using clean chemistry and conventional synthetic chemistry from organic sources and their fluorescence mechanisms, such as quantum confinement effect and surface/edge defects, before outlining their performance in electronic applications, including organic photovoltaic devices, organic light-emitting devices, biosensors, supercapacitors, and batteries. The various organic resources and methods of organic CDs synthesis are briefly covered. Many challenges remain before the adoption of CDs can become widespread; their characterization, structure, functionality, and exact photoluminescent mechanism all require additional research. This review aims to summarize the current research outcomes and highlight the area where further research is needed to fully use these materials.
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Affiliation(s)
- Maria Semeniuk
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Zhihui Yi
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Vida Poursorkhabi
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Jimi Tjong
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Shaffiq Jaffer
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Zheng-Hong Lu
- Department of Material Science and Engineering , University of Toronto , 184 College Street , Toronto , Ontario M5S 3A1 , Canada
| | - Mohini Sain
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto , Ontario M5S 3G8 , Canada
- Department of Mechanical Engineering , Beijing University of Chemical Technology (BUCT) , 100029 Beijing , P.R. China
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20
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Shorie M, Kaur H, Chadha G, Singh K, Sabherwal P. Graphitic carbon nitride QDs impregnated biocompatible agarose cartridge for removal of heavy metals from contaminated water samples. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:629-638. [PMID: 30654280 DOI: 10.1016/j.jhazmat.2018.12.115] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/19/2018] [Accepted: 12/30/2018] [Indexed: 05/22/2023]
Abstract
Highly fluorescent, water-stable graphitic carbon nitride quantum dots (gCN QDs) synthesized by microwave assisted solvo-thermal technique and characterized via optical spectroscopy, XRD, HR-TEM, Fluorescence spectroscopy, FT-IR and Raman spectroscopy. Synthesized gCN were used for the removal of mercury ions from polluted water samples in a microcartridge format. Density functional theory (DFT) calculations revealed a possible interaction of mercury atoms, and embedment of mercury atom onto synthesized gCN surface lead to moderate structural distortion, reduced band gap and altered dielectric response. Experimentally, the excitation dependent fluorescence of QDs is highly compromised in presence of mercuric (Hg2+) and other ions, validating the theoretical findings, and establishing their use as metal sensor probes. Hg2+ binding ability with gCN QDs was further utilized in developing bioinspired micro-cartridge via covalent conjugation to Agarose microbeads. Micro-cartridge can remove heavy metal contamination from polluted water with a binding efficiency of 24.63 mg HgCl2 for 10 mg of Agarose-gCN conjugate.
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Affiliation(s)
- Munish Shorie
- Institute of Nano Science and Technology, SAS Nagar, 160062, India
| | - Harmanjit Kaur
- Institute of Nano Science and Technology, SAS Nagar, 160062, India
| | - Gaganpreet Chadha
- Indian Institute of Science Education and Research, SAS Nagar, 140306, India
| | - Kulvinder Singh
- Institute of Nano Science and Technology, SAS Nagar, 160062, India
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21
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Zhao B, Wang B, Lu H, Dai S, Huang Z. Tuning the visible-light photocatalytic degradation activity of thin nanosheets constructed porous g-C3N4 microspheres by decorating ionic liquid modified carbon dots: roles of heterojunctions and surface charges. NEW J CHEM 2019. [DOI: 10.1039/c9nj00308h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The visible-light photocatalytic degradation activity of thin nanosheets constructed g-C3N4 microspheres was tuned by decorating ionic liquid modified carbon dots.
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Affiliation(s)
- Bin Zhao
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Baogang Wang
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Shanshan Dai
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Zhiyu Huang
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
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22
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Hak CH, Sim LC, Leong KH, Lim PF, Chin YH, Saravanan P. M/g-C 3N 4 (M=Ag, Au, and Pd) composite: synthesis via sunlight photodeposition and application towards the degradation of bisphenol A. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:25401-25412. [PMID: 29951757 DOI: 10.1007/s11356-018-2632-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
In this work, natural sunlight successfully induced the deposition of gold (Au), silver (Ag), and palladium (Pd) nanoparticles (NPs) with 17.10, 9.07, and 12.70 wt% onto the surface of graphitic carbon nitride (g-C3N4). The photocatalytic evaluation was carried out by adopting Bisphenol A (BPA) as a pollutant under natural sunlight irradiation. The presence of noble metals was confirmed by EDX, HRTEM, and XPS analysis. The deposition of Ag NPs (7.9 nm) resulted in the degradation rate which was 2.15-fold higher than pure g-C3N4 due to its relatively small particle size, contributing to superior charge separation efficiency. Au/g-C3N4 unveiled inferior photoactivity because the LSPR phenomenon provided two pathways for electron transfer between Au NPs and g-C3N4 further diminished the performance. The improved degradation lies crucially on the particle size and Schottky barrier formation at the interface of M/g-C3N4 (M=Au, Ag, and Pd) but not the visible light harvesting properties. The mechanism insight revealed the holes (h+) and superoxide radical (•O2-) radical actively involved in photocatalytic reaction for all composites.
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Affiliation(s)
- Chen Hong Hak
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Lan Ching Sim
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia.
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long 9, Bandar Sungai Long, 43000, Kajang, Selangor, Malaysia.
| | - Kah Hon Leong
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Ping Feng Lim
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Yik Heng Chin
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Pichiah Saravanan
- Department of Environmental Science and Engineering, Indian Institute of Technology(ISM), Dhanbad, Dhanbad, Jharkhand, 826004, India
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