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Omar RA, Talreja N, Chuhan D, Ashfaq M. Waste-derived carbon nanostructures (WD-CNs): An innovative step toward waste to treasury. ENVIRONMENTAL RESEARCH 2024; 246:118096. [PMID: 38171470 DOI: 10.1016/j.envres.2023.118096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/05/2023] [Accepted: 12/31/2023] [Indexed: 01/05/2024]
Abstract
With the growing population, the accumulation of waste materials (WMs) (industrial/household waste) in the environment incessantly increases, affecting human health. Additionally, it affects the climate and ecosystem of terrestrial and water habitats, thereby needing effective management technology to control environmental pollution. In this aspect, managing these WMs to develop products that mitigate the associated issues is necessary. Researchers continue to focus on WMs management by adopting a circular economy. These WMs convert into useful/value-added products such as polymers and nanomaterials (NMs), especially carbon nanomaterials (CNs). The conversion/transformation of waste material into useful products is one of the best solutions for managing waste. Waste-derived CNs (WD-CNs) have established boundless promises for numerous applications like environmental remediation, energy, catalysts, sensors, and biomedical applications. This review paper discusses the several sources of waste material (agricultural, plastic, industrial, biomass, and other) transforming into WD-CNs, such as carbon nanotubes (CNTs), biochar, graphene, carbon nanofibers (CNFs), carbon dots, etc., are extensively elaborated and their application. The impact of metal doping within the WD-CNs is briefly discussed, along with their applicability to end applications.
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Affiliation(s)
- Rishabh Anand Omar
- Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Neetu Talreja
- Department of Science, Faculty of Science and Technology, Alliance University, Anekal, Bengaluru-562 106, Karnataka, India.
| | - Divya Chuhan
- Department of Drinking Water and Sanitation, Ministry of Jal Shakti, 1208-A, Pandit Deendayal Antyodaya Bhawan, CGO Complex, Lodhi Road, New Delhi 110003 India
| | - Mohammad Ashfaq
- Department of Biotechnology, University Centre for Research & Development (UCRD), Chandigarh University, Gharaun, Mohali, 140413, Punjab, India.
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Chaudhary M, Singh P, Singh GP, Rathi B. Structural Features of Carbon Dots and Their Agricultural Potential. ACS OMEGA 2024; 9:4166-4185. [PMID: 38313515 PMCID: PMC10831853 DOI: 10.1021/acsomega.3c04638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 02/06/2024]
Abstract
Carbon dots (CDs) have drawn attention due to their enticing physical, chemical, and surface properties. Besides, good conductivity, low toxicity, environmental friendliness, simple synthetic routes, and comparable optical properties are advantageous features of CDs. Further, recently, CDs have been explored for biological systems, including plants. Among biological systems, only plants form the basis for sustainability and life on Earth. In this Review, we reviewed suitable properties and applications of CDs, such as promoting the growth of agricultural plants, disease resistance, stress tolerance, and target transportation. Summing up the available studies, we believe that the applications of CDs are yet to be explored significantly for innovation and technology-based agriculture.
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Affiliation(s)
- Monika Chaudhary
- Department
of Chemistry, Hansraj College, University
of Delhi, Delhi 110007, India
| | - Priyamvada Singh
- Department
of Chemistry, Miranda House, University
of Delhi, Delhi 110007, India
| | - Gajendra Pratap Singh
- Disruptive
and Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology
(SMART), 138602 Singapore
| | - Brijesh Rathi
- Department
of Chemistry, Hansraj College, University
of Delhi, Delhi 110007, India
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Kumar K, Kumar R, Kaushal S, Thakur N, Umar A, Akbar S, Ibrahim AA, Baskoutas S. Biomass waste-derived carbon materials for sustainable remediation of polluted environment: A comprehensive review. CHEMOSPHERE 2023; 345:140419. [PMID: 37848104 DOI: 10.1016/j.chemosphere.2023.140419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 10/19/2023]
Abstract
In response to the growing global concern over environmental pollution, the exploration of sustainable and eco-friendly materials derived from biomass waste has gained significant traction. This comprehensive review seeks to provide a holistic perspective on the utilization of biomass waste as a renewable carbon source, offering insights into the production of environmentally benign and cost-effective carbon-based materials. These materials, including biochar, carbon nanotubes, and graphene, have shown immense promise in the remediation of polluted soils, industrial wastewater, and contaminated groundwater. The review commences by elucidating the intricate processes involved in the synthesis and functionalization of biomass-derived carbon materials, emphasizing their scalability and economic viability. With their distinctive structural attributes, such as high surface areas, porous architectures, and tunable surface functionalities, these materials emerge as versatile tools in addressing environmental challenges. One of the central themes explored in this review is the pivotal role that carbon materials play in adsorption processes, which represent a green and sustainable technology for the removal of a diverse array of pollutants. These encompass noxious organic compounds, heavy metals, and organic matter, encompassing pollutants found in soils, groundwater, and industrial wastewater. The discussion extends to the underlying mechanisms governing adsorption, shedding light on the efficacy and selectivity of carbon-based materials in different environmental contexts. Furthermore, this review delves into multifaceted considerations, spanning the spectrum from biomass and biowaste resources to the properties and applications of carbon materials. This holistic approach aims to equip researchers and practitioners with a comprehensive understanding of the synergistic utilization of these materials, ultimately facilitating effective and affordable strategies for combatting industrial wastewater pollution, soil contamination, and groundwater impurities.
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Affiliation(s)
- Kuldeep Kumar
- Department of Chemistry, Career Point University, Hamirpur, H.P., 176041, India; Centre for Nano-Science and Technology, Career Point University, Hamirpur, H.P., 176041, India.
| | - Ravi Kumar
- Department of Chemistry, Career Point University, Hamirpur, H.P., 176041, India; Centre for Nano-Science and Technology, Career Point University, Hamirpur, H.P., 176041, India
| | - Shweta Kaushal
- Department of Chemistry, Career Point University, Hamirpur, H.P., 176041, India; Centre for Nano-Science and Technology, Career Point University, Hamirpur, H.P., 176041, India
| | - Naveen Thakur
- Department of Physics, Career Point University, Hamirpur, H.P., 176041, India; Centre for Nano-Science and Technology, Career Point University, Hamirpur, H.P., 176041, India
| | - Ahmad Umar
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA.
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Ahmed A Ibrahim
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia
| | - Sotirios Baskoutas
- Department of Materials Science, University of Patras, 26500, Patras, Greece
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Arpita, Kumar P, Kataria N, Narwal N, Kumar S, Kumar R, Khoo KS, Show PL. Plastic Waste-Derived Carbon Dots: Insights of Recycling Valuable Materials Towards Environmental Sustainability. CURRENT POLLUTION REPORTS 2023; 9:1-21. [PMID: 37362608 PMCID: PMC10214366 DOI: 10.1007/s40726-023-00268-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 04/26/2023] [Indexed: 06/28/2023]
Abstract
Carbon dots (CDs) or carbon quantum dots (CQDs) have emerged as rising stars in the carbon family due to their diverse applications in various fields. CDs are spherical particles with a well-distributed size of less than 10 nm. Functional CDs are promising nanomaterials with low toxicity, low cost, and enormous applications in the field of bioimaging, optoelectronics, photocatalysis, and sensing. Plastic is non-biodegradable and hazardous to the environment, however extremely durable and used in abundance. During the COVID-19 pandemic, the use of plastic waste, particularly masks, goggles, face shields, and shoe cover, has increased tremendously. It needs to be recycled in a productive way as plastic wastes take hundreds or thousands of years to degrade naturally. The conversion of plastic waste into magnificent CDs has been reported as one of the key alternatives for environmental sustainability and socio-economic benefits. In this review, synthetic routes for the conversion of plastic wastes into CDs utilizing hydrothermal, solvothermal, pyrolysis, flash joule heating, and characterization of these CDs using different techniques, such as Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and transmission electron microscope, have been discussed. Furthermore, potential applications of these plastic-derived CDs in sensing, catalysis, agronomics, and LED lights are summarized herein.
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Affiliation(s)
- Arpita
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Parmod Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Navish Kataria
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Nishita Narwal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, 110078 India
| | - Sandeep Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Ravi Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 602105, Chennai, India
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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Jing X, Liu Y, Liu X, Wang XF, You C, Chang D, Zhang S. Nitrogen-doped carbon dots enhanced seedling growth and salt tolerance with distinct requirements of excitation light. RSC Adv 2023; 13:12114-12122. [PMID: 37082373 PMCID: PMC10111579 DOI: 10.1039/d3ra01514a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/10/2023] [Indexed: 04/22/2023] Open
Abstract
Numerous nanomaterials with optical properties have demonstrated excellent capacities to enhance plant growth and stress tolerance. However, the corresponding mechanisms have only been partially characterized, especially the excitation-light dependencies of different actions. Here, nitrogen-doped carbon dots (N-CDs) were developed to explore the excitation-light dependence in N-CD-induced growth enhancement and salt tolerance. Compared to the control, N-CDs induced significant enhancements in Arabidopsis thaliana growth under excitation light, including fresh/dry weight of shoot (21.07% and 16.87%), chlorophyll content (9.17%), soluble sugar content (23.41%), leaf area (28.68%), total root length (34.07%) and root tip number (46.69%). In the absence of excitation light, N-CD-treated seedlings exhibited little differences in these parameters, except the enhancements in root length (24.51%) and root tip number (10.24%). On the other hand, N-CD-treatment could improve seedling salt tolerance with or without excitation light. Under salt stress (150 mM NaCl), in the presence of excitation light, the N-CDs treatment significantly increased shoot/root fresh weight and chlorophyll content by 43.29%, 50.66% and 22.59%, and reduced malondialdehyde (MDA) content and relative conductivity by 17.59% and 32.58% compared to the control group. In the absence of excitation light, significant enhancements in shoot/root fresh weight (34.22%, 32.60%) and chlorophyll content (10.45%), and obvious decreases in MDA content (28.84%) and relative conductivity (16.13%) were also found. These results indicated that N-CDs only induced growth enhancement under excitation light, but they improved salt tolerance with and without excitation light, suggesting that the two effects occurred via distinct signaling pathways. This study revealed the excitation-light dependencies of nanomaterial-involved agriculture applications, providing insight into designing more efficient nanomaterials in the future.
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Affiliation(s)
- Xiuli Jing
- State Key Laboratory of Crop Biology, Shandong Green Fertilizer Technology Innovation Center, Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University Taian Shandong China
| | - Yankai Liu
- State Key Laboratory of Crop Biology, Shandong Green Fertilizer Technology Innovation Center, Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University Taian Shandong China
| | - Xuzhe Liu
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University Taian Shandong China
| | - Xiao-Fei Wang
- State Key Laboratory of Crop Biology, Shandong Green Fertilizer Technology Innovation Center, Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University Taian Shandong China
| | - Chunxiang You
- State Key Laboratory of Crop Biology, Shandong Green Fertilizer Technology Innovation Center, Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University Taian Shandong China
| | - Dayong Chang
- Yantai Goodly Biological Technology Co., Ltd. Yantai Shandong China
| | - Shuai Zhang
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University Taian Shandong China
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Liang L, Wong SC, Lisak G. Effects of plastic-derived carbon dots on germination and growth of pea (Pisum sativum) via seed nano-priming. CHEMOSPHERE 2023; 316:137868. [PMID: 36642132 DOI: 10.1016/j.chemosphere.2023.137868] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
Seed nano-priming is a promising technology employed in the agronomic field to promote seed germination and plant growth. However, the effects of carbon dots (CDs) on plant development via seed nano-priming remain unclear. In the present study, CDs synthesized from non-biodegradable plastic wastes were adopted as a nano-priming agent for pea (Pisum sativum) seed treatment. The results demonstrated positive effects of seed priming at all CD concentrations (0.25-2 mg/mL), including accelerated seed germination rate, increased shoot and root elongation, biomass accumulation, and root moisture level compared to the control groups. Surface erosion of seed coat was observed after CD priming, which effectively promoted seed imbibition capability. CD penetration, internalization, and translocation were confirmed using transmission electron microscopy. Furthermore, the CD-plant interaction significantly enhanced seed antioxidant enzyme activity, as well as augmented root vigor, chlorophyll content, and carbohydrate content. These findings exhibit great potential of waste-derived CDs as nano-priming agents for seed germination and seedling development in a cost-effective and sustainable manner.
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Affiliation(s)
- Lili Liang
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore; Interdisciplinary Graduate Program, Nanyang Technological University, 61 Nanyang Drive, Singapore, 637335, Singapore
| | - Siew Cheong Wong
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Grzegorz Lisak
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore.
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