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Cheng S, Wang X, Zou P, Sun Z, Wei X, Ma G, Yu H. Theoretical studies on the aqueous phase and graphene heterogeneous degradation of acrylamide and acrylonitrile by HO, ClO, and BrO radicals. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 364:121473. [PMID: 38878582 DOI: 10.1016/j.jenvman.2024.121473] [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: 04/23/2024] [Revised: 06/04/2024] [Accepted: 06/10/2024] [Indexed: 06/24/2024]
Abstract
The newly discovered ClO• and BrO• contribute to pollutant degradation in advanced oxidation processes, while acrylamide (AM) and acrylonitrile (ACN) are always the focus of scientists concerned due to their continuous production and highly toxic effects. Moreover, various particles with a graphene-like structure are the companions of AM/ACN in dry/wet sedimentation or aqueous phase existence, which play an important role in heterogeneous oxidation. Thus, this work focuses on the reaction mechanism and environmental effect of AM/ACN with ClO•/BrO•/HO• in the water environment under the influence of graphene (GP). The results show that although the reactivity sequence of AM and ACN takes the order of with HO• > with BrO• > with ClO•, the easiest channel always occurs at the same C-position of the two reactants. The reaction rate constants (k) of AM with three radicals are 2 times larger than that with ACN, and amide groups have a better ability to activate CC bonds than cyanide groups. The existence of GP can accelerate the target reaction, and the k increased by 9-13 orders of magnitude. The toxicity assessment results show that the toxic effect of most products is lower than that of parent compounds, but the environmental risk of products from ClO•/BrO•-adducts is higher than those from HO•-adducts. The oxidative degradation process based on ClO• and BrO• deserves special attention, and the catalytic effect of GP and its derivatives on the oxidation process is non-negligible.
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Affiliation(s)
- Sisi Cheng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Xueyu Wang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Pengcheng Zou
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Zhenkun Sun
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Xiaoxuan Wei
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Guangcai Ma
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Haiying Yu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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Thakur S, Bi A, Mahmood S, Samriti, Ruzimuradov O, Gupta R, Cho J, Prakash J. Graphene oxide as an emerging sole adsorbent and photocatalyst: Chemistry of synthesis and tailoring properties for removal of emerging contaminants. CHEMOSPHERE 2024; 352:141483. [PMID: 38378052 DOI: 10.1016/j.chemosphere.2024.141483] [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: 10/17/2023] [Revised: 11/27/2023] [Accepted: 02/15/2024] [Indexed: 02/22/2024]
Abstract
Contaminants of emerging concern (CEC) contain a wide range of compounds, such as pharmaceutical waste, pesticides, herbicides, industrial chemicals, organic dyes, etc. Their presence in the surrounding has extensive and multifaceted effects on human health as they have the potential to persist in the environment, accumulate in biota, and disrupt ecosystems. In this regard, various remediation methods involving different kind of functional nanomaterials with unique properties have been developed. The functional nanomaterials can provide several mechanisms for water pollutant removal, such as adsorption, catalysis, and disinfection, in a single platform. Graphene oxide (GO) is a two-dimensional carbon-based material that has an extremely large surface area and a large number of active sites. Recent advances in synthesising GO have shown great progress in tailoring its various physiochemical, optical, surface, structural properties etc., making it better adsorbent and photocatalysts. In this review, sole adsorbent and standalone photocatalytic performances of GO for the removal of CEC have been discussed in light of tailoring its adsorption and photocatalytic properties through novel synthesis routes and optimizing synthesis parameters. This review also examines various models describing the structure of GO and its surface/structural modifications for improved adsorption and photocatalytic properties. The article provides valuable information for the production of efficient and cost-effective GO-based sole adsorbents and photocatalysts as compared to the traditional materials. Furthermore, future prospective and challenges for sole GO nanostructures to compete with traditional adsorbents and photocatalysts have been discussed providing interesting avenues for future research.
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Affiliation(s)
- Sahil Thakur
- Department of Chemistry, National Institute of Technology Hamirpur, Hamirpur, H.P., 177005, India
| | - Arisha Bi
- Department of Chemistry, Jamia Millia Islamia University, New Delhi, 110025, India
| | - Sarfaraz Mahmood
- Department of Chemistry, Jamia Millia Islamia University, New Delhi, 110025, India
| | - Samriti
- Department of Chemistry, National Institute of Technology Hamirpur, Hamirpur, H.P., 177005, India
| | - Olim Ruzimuradov
- Department of Natural and Mathematic Sciences, Turin Polytechnic University in Tashkent, Kichik Halqa Yo'li 17, Tashkent, 100095, Uzbekistan
| | - Rajeev Gupta
- Department of Physics, School of Engineering Studies, University of Petroleum & Energy Studies, Dehradun, 248007, Uttarakhand, India
| | - Junghyun Cho
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York (SUNY), Binghamton, NY, 13902-6000, USA
| | - Jai Prakash
- Department of Chemistry, National Institute of Technology Hamirpur, Hamirpur, H.P., 177005, India.
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Wu B, Wang C, Wang Z, Shen K, Wang K, Li G. Coupling Z-Scheme g-C 3N 4/rGO/MoS 2 Ternary Heterojunction as an Efficient Visible Light Photocatalyst for Hydrogen Evolution and RhB Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1931-1940. [PMID: 38214273 DOI: 10.1021/acs.langmuir.3c03685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Coupling heterostructures to synergistically improve the light adsorption and promote the charge carrier separation has been regarded as an operative approach to advance the photocatalytic performances. However, it is still challenging to construct heterostructures with appropriate optical properties and interfacial energy structures at the same time. In this work, a Z-scheme g-C3N4/rGO/MoS2 ternary composite photocatalyst is successfully synthesized via an effective hydrothermal method. The as-synthesized g-C3N4/rGO/MoS2 composite photocatalyst exhibited significant improvement for visible light absorption and boosted the separation efficiency of photoinduced electron-hole pairs. The g-C3N4/rGO/MoS2 system exhibited optimum visible-light-induced photocatalytic activity in hydrogen (H2) from water splitting and degrading pollutant rhodamin B (RhB), which is 22 times and 5 times higher than that of pure g-C3N4, respectively. The excellent photocatalytic activities are attributed to the synergetic effects of coupling rGO, g-C3N4, and MoS2 ternary structures to the composite photocatalyst. These combinations of intimate two-dimensional nanoconjugations can effectively inhibit charge recombination and accelerate charge transfer kinetics, forming a Z-scheme-assisted photocatalytic mechanism, thereby exhibiting superior photocatalytic activity.
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Affiliation(s)
- Bo Wu
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
| | - Congwei Wang
- CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Zheyan Wang
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
| | - Kai Shen
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
| | - Kaiying Wang
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
- Department of Microsystems, University of South-Eastern Norway, Horten, 3184, Norway
| | - Gang Li
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
- College of Physics and Information Engineering, Minnan Normal University, Zhangzhou 361000, China
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Khan NR, Sharmin T, Bin Rashid A. Exploring the Versatility of Aerogels: Broad Applications in Biomedical Engineering, Astronautics, Energy Storage, Biosensing, and Current Progress. Heliyon 2024; 10:e23102. [PMID: 38163169 PMCID: PMC10754877 DOI: 10.1016/j.heliyon.2023.e23102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024] Open
Abstract
Aerogels are unique and extremely porous substances with fascinating characteristics such as ultra-low density, extraordinary surface area, and excellent thermal insulation capabilities. Due to their exceptional features, aerogels have attracted significant interest from various fields, including energy, environment, aerospace, and biomedical engineering. This review paper presents an overview of the trailblazing research on aerogels, aiming at their preparation, characterization, and applications. Various methods of aerogel synthesis, such as sol-gel, supercritical drying, are discussed. Additionally, recent progress in the characterization of aerogel structures, including their morphology, porosity, and thermal properties, are extensively reviewed. Finally, aerogel's utilizations in numerous disciplines, for instance, energy storage, thermal insulation, catalysis, environmental remedy, and biomedical applications, are summarized. This review paper provides a comprehensive understanding of aerogels and their prospective uses in diverse fields, highlighting their unique properties for future research and development.
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Affiliation(s)
- Nazia Rodoshi Khan
- Department of Industrial and Production Engineering, Military Institute of Science and Technology (MIST), Dhaka, Bangladesh
| | - Tasnuva Sharmin
- Department of Mechanical and Production Engineering, Islamic University of Technology (IUT), Dhaka, Bangladesh
| | - Adib Bin Rashid
- Department of Industrial and Production Engineering, Military Institute of Science and Technology (MIST), Dhaka, Bangladesh
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Nguyen MB, Lan PT, Anh NT, Tung NN, Guan S, Ting VP, Nguyen TTB, Doan HV, Tung MT, Lam TD. Ternary heterogeneous Z-scheme photocatalyst TiO 2/CuInS 2/OCN incorporated with carbon quantum dots (CQDs) for enhanced photocatalytic degradation efficiency of reactive yellow 145 dye in water. RSC Adv 2023; 13:35339-35348. [PMID: 38058561 PMCID: PMC10696411 DOI: 10.1039/d3ra07546j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023] Open
Abstract
This study delves into the advanced integration of a ternary heterogeneous Z-scheme photocatalyst, TiO2/CuInS2/OCN (OCN: O-g-C3N4), with carbon quantum dot (CQD) to improve the degradation efficiency of reactive yellow 145 (RY145) dye in water. Through a systematic examination, we elucidated the photocatalytic mechanisms and the role of radicals, electrons, and holes in the treatment process. Our findings revealed that this novel catalyst integration significantly boosted RY145 degradation efficiency, achieving 98.2%, which is markedly higher than the efficiencies which could be achieved using TiO2/CuInS2/OCN alone. Moreover, the TiO2/CuInS2/OCN/CQD photocatalyst demonstrated superior rate performance over its components. Comprehensive evaluations, including photoelectrochemical and radical tests, further confirmed the efficiency of the integrated system, adhering to Z-scheme principles. The catalyst showcased remarkable stability, with over 94% reusability after five reaction cycles. These findings pave the way for the potential use of the TiO2/CuInS2/OCN/CQD photocatalyst as an innovative solution for water pollutant treatment via photocatalytic technology.
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Affiliation(s)
- Manh B Nguyen
- Institute of Chemistry (ICH), Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Hanoi Vietnam
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Hanoi Vietnam
| | - Pham Thi Lan
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Nguyen Tuan Anh
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Nguyen Ngoc Tung
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Street, Cau Giay Ha Noi Vietnam
| | - Shaoliang Guan
- School of Chemistry, Cardiff University Cardiff CF10 3AT UK
- HarwellXPS, Research Complex at Harwell, Rutherford Appleton Laboratory Didcot OX11 0FA UK
- Institute of Physics, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Viet Nam
| | - Valeska P Ting
- Research School of Chemistry, The Australian National University AT 2601 Canberra Australia
- College of Engineering, Computing and Cybernetics, The Australian National University ACT 2601 Canberra Australia
| | - T-Thanh-Bao Nguyen
- Hanoi University of Science and Technology 1 Dai Co Viet, Bach Khoa, Hai Ba Trung Hanoi Vietnam
| | - Huan V Doan
- Research School of Chemistry, The Australian National University AT 2601 Canberra Australia
| | - Mai Thanh Tung
- Hanoi University of Science and Technology 1 Dai Co Viet, Bach Khoa, Hai Ba Trung Hanoi Vietnam
| | - Tran Dai Lam
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
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