1
|
Thakur N, Thakur N, Kumar A, Thakur VK, Kalia S, Arya V, Kumar A, Kumar S, Kyzas GZ. A critical review on the recent trends of photocatalytic, antibacterial, antioxidant and nanohybrid applications of anatase and rutile TiO2 nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169815. [PMID: 38184262 DOI: 10.1016/j.scitotenv.2023.169815] [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: 11/03/2023] [Revised: 12/22/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have become a focal point of research due to their widespread daily use and diverse synthesis methods, including physical, chemical, and environmentally sustainable approaches. These nanoparticles possess unique attributes such as size, shape, and surface functionality, making them particularly intriguing for applications in the biomedical field. The continuous exploration of TiO2 NPs is driven by the quest to enhance their multifunctionality, aiming to create next-generation products with superior performance. Recent research efforts have specifically focused on understanding the anatase and rutile phases of TiO2 NPs and evaluating their potential in various domains, including photocatalytic processes, antibacterial properties, antioxidant effects, and nanohybrid applications. The hypothesis guiding this research is that by exploring different synthesis methods, particularly chemical and environmentally friendly approaches, and incorporating doping and co-doping techniques, the properties of TiO2 NPs can be significantly improved for diverse applications. The study employs a comprehensive approach, investigating the effects of nanoparticle size, shape, dose, and exposure time on performance. The synthesis methods considered encompass both conventional chemical processes and environmentally friendly alternatives, with a focus on how doping and co-doping can enhance the properties of TiO2 NPs. The research unveils valuable insights into the distinct phases of TiO2 NPs and their potential across various applications. It sheds light on the improved properties achieved through doping and co-doping, showcasing advancements in photocatalytic processes, antibacterial efficacy, antioxidant capabilities, and nanohybrid applications. The study concludes by emphasizing regulatory aspects and offering suggestions for product enhancement. It provides recommendations for the reliable application of TiO2 NPs, addressing a comprehensive spectrum of critical aspects in TiO2 NP research and application. Overall, this research contributes to the evolving landscape of TiO2 NP utilization, offering valuable insights for the development of innovative and high-performance products.
Collapse
Affiliation(s)
- Naveen Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India.
| | - Nikesh Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India
| | - Anil Kumar
- School of chemical and metallurgical engineering, University of the Witwatersrand, Johannesburg, South Africa
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings West Mains Road, Edinburgh EH9 3JG, United Kingdom
| | - Susheel Kalia
- Department of Chemistry, ACC Wing (Academic Block) Indian Military Academy, Dehradun, Uttarakhand 248007, India
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Ashwani Kumar
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Sunil Kumar
- Department of Animal Sciences, Central University of Himachal Pradesh, Kangra, Shahpur, Himachal Pradesh 176206, India
| | - George Z Kyzas
- Hephaestus Laboratory, Department of Chemistry, School of Science, International Hellenic University, Kavala, Greece.
| |
Collapse
|
2
|
Du C, Chen X, Wu H, Pan Z, Chen C, Zhong G, Cai C. A novel cationic covalent organic framework as adsorbent for simultaneous removal of methyl orange and hexavalent chromium. RSC Adv 2023; 13:24064-24070. [PMID: 37577086 PMCID: PMC10415750 DOI: 10.1039/d3ra03726f] [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: 06/03/2023] [Accepted: 07/23/2023] [Indexed: 08/15/2023] Open
Abstract
The simultaneous removal of toxic, carcinogenic organic dyes and metal ions from water by one material offers significant advantages when fast, facile, and robust water purification is required. Ionic covalent organic frameworks (ICOFs) have the combined properties of COFs and ion exchange resins and are expected to achieve simultaneous capture of heavy metal ions and organic dyes from water. Herein, a novel guanidinium-based ICOF was synthesized using a solvothermal method. Benefitting from the cationic character, porosity and nanoscale pore size of ICOFs, the adsorbent exhibited high simultaneous adsorption capacities of 290 mg g-1 and 158 mg g-1 for methyl orange (MO) and Cr(vi), respectively, and retained more than 90% adsorption capacity after six adsorption-desorption cycles. In addition, based on dual control of size-exclusion and charge-selection, precisely selective adsorption is achieved towards diverse mixed anionic and cationic pollutants. This strategy offers a practical solution for COFs to confront environmental pollution issues.
Collapse
Affiliation(s)
- Chang Du
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| | - Xiaodi Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| | - Hongping Wu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| | - Zilu Pan
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| | - Chunyan Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| | - Guanqun Zhong
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| | - Changqun Cai
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan 411105 China
| |
Collapse
|
3
|
Liapun V, Hanif MB, Sihor M, Vislocka X, Pandiaraj S, V K U, Thirunavukkarasu GK, Edelmannová MF, Reli M, Monfort O, Kočí K, Motola M. Versatile application of BiVO 4/TiO 2 S-scheme photocatalyst: Photocatalytic CO 2 and Cr(VI) reduction. CHEMOSPHERE 2023:139397. [PMID: 37406942 DOI: 10.1016/j.chemosphere.2023.139397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/20/2023] [Accepted: 06/30/2023] [Indexed: 07/07/2023]
Abstract
Herein, the synthesis, characterization, and reduction properties of 2D TiO2 aerogel powder decorated with BiVO4 (TiO2/BiVO4) were investigated for versatile applications. First, 2D TiO2 was prepared via lyophilization and subsequently modified with BiVO4 using a wet impregnation method. The morphology, structure, composition, and optical properties were evaluated using transmission electron microscopy (TEM), X-ray diffractometry (XRD), laser-induced breakdown spectroscopy (LIBS), and diffuse reflectance spectroscopy (DRS), respectively. Significantly enhanced photocurrent densities (by 3-15 times) were obtained for TiO2/BiVO4 compared to those of pure TiO2 and BiVO4. The reduction of toxic Cr(VI) to Cr(III) was assessed, including the effect of pH on overall photocatalytic efficiency. Under acidic conditions (pH ∼ 2), Cr(VI) reduction efficiency reached 100% within 2 h. For photocatalytic CO2 reduction, the highest yields of CH4 and CO were obtained using TiO2/BiVO4. A higher efficiency for both applications was achieved because of the better separation of the electron-hole pairs in TiO2/BiVO4. The excellent stability of TiO2/BiVO4 over repeated runs highlights its potential for use in versatile environmental applications. The efficiency of TiO2/BiVO4 is due to the interplay of the structure, morphology, composition, and photoelectrochemical properties that favour the material for the presented herein photocatalytic applications.
Collapse
Affiliation(s)
- Viktoriia Liapun
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia; Department of Environmental Ecology and Landscape Management, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Muhammad Bilal Hanif
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Marcel Sihor
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic
| | - Xenia Vislocka
- Institute of Inorganic Chemistry, Czech Academy of Sciences, Husinec-Rez 1001, Rez, 250 68, Czech Republic
| | - Saravanan Pandiaraj
- Department of Self-Development Skills, CFY Deanship, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Unnikrishnan V K
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Guru Karthikeyan Thirunavukkarasu
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Miroslava Filip Edelmannová
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic
| | - Martin Reli
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic
| | - Olivier Monfort
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Kamila Kočí
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic.
| | - Martin Motola
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.
| |
Collapse
|
4
|
Zhou Z, Zhang H, Qian X, Li C, Deng K. The composite of bismuth oxyiodide-bismuth/nitrogen-doped carbon for photoreduction and electrochemical/photoelectrochemical dual-model sensing of Cr(VI). Anal Chim Acta 2023; 1253:341092. [PMID: 36965994 DOI: 10.1016/j.aca.2023.341092] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/14/2023]
Abstract
A porous bismuth oxyiodide-metal bismuth/nitrogen-doped carbon (BiOI-Bi/N-C) composite composed of BiOI nanosheets, N-C sheets, and metallic Bi nanoparticles was prepared. BiOI-Bi/N-C exhibited remarkable cathodic photoelectrochemical activity and rapid adsorption capacity for Cr(VI) ions. Interestingly, the photocatalytic process of BiOI-Bi/N-C toward Cr(VI) was pH dependent. Under acidic medium, the synthesized material displayed efficient photocatalysis and achieved 95.0% photoreduction efficacy for Cr(VI) ions to Cr3+ within 30 min under visible light irradiation. Under neutral medium, Cr(VI) state showed a different photocatalytic process, and Cr(OH)3 as a product covered on BiOI-Bi/N-C, which decreased the electrochemical (EC) and photoelectrochemical (PEC) performance of BiOI-Bi/N-C. Based on the findings, BiOI-Bi/N-C was utilized as EC/PEC dual-model sensing interface for the detection of Cr(VI) ions. The presented dual-model sensing method displayed an ultralow limit of detection down to 6.8 pM for EC and 3.2 pM for PEC. It demonstrated the practical application potential for the assay of Cr(VI) in real samples.
Collapse
Affiliation(s)
- Zhihua Zhou
- Hunan Province College Key Laboratory of Molecular Design and Green Chemistry, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China.
| | - Heng Zhang
- Hunan Province College Key Laboratory of Molecular Design and Green Chemistry, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China
| | - Xinmei Qian
- Hunan Province College Key Laboratory of Molecular Design and Green Chemistry, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China
| | - Chunxiang Li
- Hunan Province College Key Laboratory of Molecular Design and Green Chemistry, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China
| | - Keqin Deng
- Hunan Province College Key Laboratory of Molecular Design and Green Chemistry, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China; Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China.
| |
Collapse
|
5
|
Xie S, Liu M, Zhang X, Yang C, Zhang Y, Qin Y, He C, Dou Y, Gao C, Yuan Y. Zeolite/ZnAl-layer double hydroxides with different Zn/Al ratios and intercalated anions as the substrate of constructed wetlands: synthesis, characterization and purification effect of Hexavalent chromium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:19814-19827. [PMID: 36242668 DOI: 10.1007/s11356-022-23594-5] [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: 07/24/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
The study aimed to synthesize novel zeolite substrates modified with four types of ZnAl-LDHs including Cl-LDHs(1:1), Cl-LDHs(3:1), CO3-LDHs(1:1), and CO3-LDHs(3:1); investigate Cr(VI) removal efficiencies in lab-scale constructed wetlands (CWs); and explore the effect of different Zn/Al ratios and intercalated anions on the removal efficiencies of Cr(VI) by modified zeolite. Different ZnAl-LDHs were prepared by co-precipitation method and coated onto the surface of original zeolite. Field emission scanning electron microscope and energy dispersive spectrometer were used to analyze physicochemical properties of zeolite/ZnAl-LDHs. Obtained results confirmed the successful LDHs-coating modification. The results of both X-ray diffraction and Fourier transform infrared suggested that the typical diffraction peak and functional groups of ZnAl-LDHs were detected in modified zeolites, and the peak of CO32- in CO3-LDHs at 1362 cm-1 was stronger and sharper than Cl-LDHs. It could be demonstrated by above results that the synthesis crystallinity and coating effect of CO3-LDHs was better than Cl-LDHs. Furthermore, it could be found that under the condition of same intercalated anion, LDHs with metal molar ratio of 1:1 had better crystallinity than LDHs with metal molar ratio of 3: 1. Subsequent determination of the removal performance of Cr(VI) by purification experiments revealed that zeolite/Cl-LDHs(3:1) showed the best Cr(VI) removal performance, and the removal rate of Cr(VI) was improved by 32.81% compared with the original zeolite, which suggested that could be an efficient substrate of CWs for Cr(VI) removal. The high crystallinity indicated that the structure of LDHs was stable and it was difficult to remove Cr(VI) by ion exchange. The above explained why the Cr(VI) removal efficiency by zeolite/Cl-LDHs is superior to that by zeolite/CO3-LDHs under the condition of same metal molar ratio. With the increase of metal molar ratio, the charge density of LDHs layers and intercalated anion increased, thus enhancing the electrostatic attraction of LDHs layers to Cr(VI) and the interlayer anion exchange capacity. However, the effect of charge density on Cr(VI) removal efficiency may be greater than crystallinity on removal efficiency, which could be responsible for the fact that zeolite/ZnAl-LDHs(3:1) had better Cr(VI) removal efficiency than zeolite/ZnAl-LDHs(1:1) under the condition of same intercalated anion.
Collapse
Affiliation(s)
- Shuqin Xie
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Mingyang Liu
- China Construction Third Engineering Bureau Group Co., Ltd, Wuhan, 430072, China
| | - Xiangling Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China.
- Hainan Research Institute, Wuhan University of Technology, Sanya, 572000, China.
| | - Chao Yang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Yueling Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Yaojun Qin
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Chuntao He
- China Construction Third Engineering Bureau Group Co., Ltd, Wuhan, 430072, China
| | - Yankai Dou
- Office Affairs Center of Changjiang River Administration of Navigational Affairs, Wuhan, 430014, China
| | - Chenguang Gao
- MCC South (Wuhan) Construction Design Consulting Co., Ltd, Wuhan, 430077, China
| | - Ye Yuan
- PowerChina ZhongNan Engineering Corporation Limited, Changsha, 410007, China
| |
Collapse
|
6
|
Applications of Fluorescent Carbon Dots as Photocatalysts: A Review. Catalysts 2023. [DOI: 10.3390/catal13010179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Carbon dots (CDs) have attracted considerable interest from the scientific community due to their exceptional properties, such as high photoluminescence, broadband absorption, low toxicity, water solubility and (photo)chemical stability. As a result, they have been applied in several fields, such as sensing, bioimaging, artificial lighting and catalysis. In particular, CDs may act as sole photocatalysts or as part of photocatalytic nanocomposites. This study aims to provide a comprehensive review on the use of CDs as sole photocatalysts in the areas of hydrogen production via water splitting, photodegradation of organic pollutants and photoreduction and metal removal from wastewaters. Furthermore, key limitations preventing a wider use of CDs as photocatalysts are pointed out. It is our hope that this review will serve as a basis on which researchers may find useful information to develop sustainable methodologies for the synthesis and use of photocatalytic CDs.
Collapse
|
7
|
Yu T, Liu Q, Gao C, Yang T, Yang B, Guo H, Chen W, Zhang Y, Song B. Preparation of FePcNs@GO composites and boosting oxygen reduction reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04751-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
8
|
Microwave-Assisted Solvothermal Synthesis of Mo-Doped TiO 2 with Exceptional Textural Properties and Superior Adsorption Kinetics. NANOMATERIALS 2022; 12:nano12122051. [PMID: 35745390 PMCID: PMC9227794 DOI: 10.3390/nano12122051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 02/04/2023]
Abstract
Assigned to their outstanding physicochemical properties, TiO2-based materials have been studied in various applications. Herein, TiO2 doped with different Mo contents (Mo-TiO2) was synthesized via a microwave-assisted solvothermal approach. This was achieved using titanium (IV) butoxide and molybdenum (III) chloride as a precursor and dodecylamine as a surface directing agent. The uniform effective heating delivered by microwave heating reduced the reaction time to less than 30 min, representing several orders of magnitude lower than conventional heating methods. The average particle size ranged between 9.7 and 27.5 nm and it decreased with increasing the Mo content. Furthermore, Mo-TiO2 revealed mesoporous architectures with a high surface area ranging between 170 and 260 m2 g−1, which is superior compared to previously reported Mo-doped TiO2. The performance of Mo-TiO2 was evaluated towards the adsorption of Rhodamine B (RhB). In contrast to TiO2, which revealed negligible adsorption for RhB, Mo-doped samples depicted rapid adsorption for RhB, with a rate that increased with the increase in Mo content. Additionally, Mo-TiO2 expressed enhanced adsorption kinetics for RhB compared to state-of-the-art adsorbents. The introduced synthesis procedure holds a grand promise for the versatile synthesis of metal-doped TiO2 nanostructures with outstanding physicochemical properties.
Collapse
|
9
|
Sheikholeslami-Farahani F, Mohammadi M, Ghambarian M, Hossaini Z. Green Synthesis and Biological Activity Investigation of New Thiazinotriazines: A Combined Experimental and Theoretical Investigation. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2078378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Marziyeh Mohammadi
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Mehdi Ghambarian
- Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | | |
Collapse
|
10
|
Photochemical deposition of SnS2 on graphitic carbon nitride for photocatalytic aqueous Cr(VI) reduction. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2021.100224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
|
11
|
Hezarcheshmeh NK, Azizian J. Solvent-free synthesis of new spiropyrroloindole compounds using Fe3O4/TiO2/MWCNTs MNCs via multicomponent reactions: assessment of new spiropyrroloindole antioxidant activity. Mol Divers 2022; 26:2011-2024. [DOI: 10.1007/s11030-021-10311-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/02/2021] [Indexed: 11/28/2022]
|
12
|
Kordmahalleh MY, Moradi AV, Hossaini Z, Golsefidi MA. Synthesis and evaluation of antioxidant and antimicrobial activity of new spiropyrrolopyrrolizine compounds: Using Fe
3
O
4
/TiO
2
/Multiwall carbon nanotubes (MWCNTs) magnetic nanocomposites. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
13
|
Bi J, Tao Q, Huang X, Wang J, Wang T, Hao H. Simultaneous decontamination of multi-pollutants: A promising approach for water remediation. CHEMOSPHERE 2021; 284:131270. [PMID: 34323782 DOI: 10.1016/j.chemosphere.2021.131270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 05/08/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Water remediation techniques have been extensively investigated due to the increasing threats of soluble pollutants posed on the human health, ecology and sustainability. Confronted with the complex composition matrix of wastewater, the simultaneous elimination of coexisting multi-pollutants remains a great challenge due to their different physicochemical properties. By integrating multi-contaminants elimination processes into one unit operation, simultaneous decontamination attracted more and more attention under the consideration of versatile applications and economical benefits. In this review, the state-of-art simultaneous decontamination methods were systematically summarized as chemical precipitation, adsorption, photocatalysis, oxidation-reduction, biological removal and membrane filtration. Their applications, mechanisms, mutual interactions, sustainability and recyclability were outlined and discussed in detail. Finally, the prospects and opportunities for future research were proposed for further development of simultaneous decontamination. This work could provide guidelines for the design and fabrication of well-organized simultaneous decontaminating system.
Collapse
Affiliation(s)
- Jingtao Bi
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Qingqing Tao
- 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.
| | - Jingkang Wang
- 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; State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China
| | - Ting Wang
- 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; State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China.
| |
Collapse
|
14
|
Ahmadi N, Sayyed‐Alangi SZ, Varasteh‐Moradi A. Synthesis and evaluation of antioxidant and antimicrobial activity of new spiropyridine derivatives using Ag/TiO
2
/Fe
3
O
4
@MWCNTs MNCs as efficient organometallic nanocatalyst. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Naser Ahmadi
- Department of Chemistry, Azadshahr Branch Islamic Azad University Azadshahr Iran
| | | | | |
Collapse
|
15
|
Savari M, Varasteh‐Moradi A, Sayyed‐Alangi SZ, Hossaini Z, Zafarmehrabian R. Ag/Fe
3
O
4
/TiO
2
@MWCNTs as a reusable organometallic nanocatalyst promoted green synthesis of new pyridobenzoazepines: Study of biological activity and reduction of organic pollutants. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mehdi Savari
- Department of Chemistry, Gorgan Branch Islamic Azad University Gorgan Iran
| | | | | | | | | |
Collapse
|
16
|
Wu Z, Liu X, Yu C, Li F, Zhou W, Wei L. Construct interesting CuS/TiO 2 architectures for effective removal of Cr(VI) in simulated wastewater via the strong synergistic adsorption and photocatalytic process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 796:148941. [PMID: 34328876 DOI: 10.1016/j.scitotenv.2021.148941] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/27/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
Most of the reduction processes for Cr (VI) removal tend to be available only at the acidic condition and the capable extent of pH is limited. Here, we developed a facile strategy for constructing CuS/TiO2 architectures via a facile precipitation process. The as-prepared urchin-like CuS microspheres possessed hierarchical/large porous structure and unique electrical structure, which provided a strong ability to capture the Cr(VI) ions in water. Once CuS microspheres were combined with TiO2 crystals (P25), a surprised high removal efficiency for Cr(VI) was obtained. With optimal molar ratio of CuS:TiO2 (0.72:1), 4.4 and 1.3 times in Cr(VI) removal rate were obtained with respect to pure TiO2 and CuS. The high removal efficiency was induced by the distinct synergistic role of strong adsorption and photocatalytic reduction originated from unique electrical structure in CuS/TiO2 hetero-structure. Moreover, these novel CuS/TiO2 architectures possess promising application for Cr6+ effluents remediation in a wide range of pH and with co-existing anions and cations.
Collapse
Affiliation(s)
- Zhen Wu
- School of Chemical Engineering, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Xingqiang Liu
- School of Environmental Science and Engineering, Key Laboratory of Estuarine Ecological Security and Environmental Health, Xiamen University Tan Kah Kee College, Zhangzhou 363105, Fujian, China
| | - Changlin Yu
- School of Chemical Engineering, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China.
| | - Fang Li
- School of Chemical Engineering, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Wanqin Zhou
- School of Chemical Engineering, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Longfu Wei
- School of Chemical Engineering, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China.
| |
Collapse
|
17
|
Cao S, Ye X, Hu H, Jin H, Wang Y, Ye J. Rational synthesis of SrTiO3 nanodots anchored mesocrystalline anatase TiO2 submicrospheres for photocatalytic reduction of CrVI. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119096] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
18
|
Liu Z, Wu J, Wang J, Wang R, Liu G, Qi Y, Xu W, Luo G, Xu M. The effect of different morphology of fluoride-mediated TiO2 based on Ostwald ripening on photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
19
|
Zhao C, Wang J, Chen X, Wang Z, Ji H, Chen L, Liu W, Wang CC. Bifunctional Bi 12O 17Cl 2/MIL-100(Fe) composites toward photocatalytic Cr(VI) sequestration and activation of persulfate for bisphenol A degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:141901. [PMID: 33207532 DOI: 10.1016/j.scitotenv.2020.141901] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 06/11/2023]
Abstract
Bifunctional Bi12O17Cl2/MIL-100(Fe) composite (BMx) was firstly constructed via facile ball-milling method. The optimal BM200 was highly efficient for Cr(VI) sequestration and activation of persulfate (PS) for bisphenol A (BPA) decomposition under white light illumination, which was much more remarkable than the pristine MIL-100(Fe) and Bi12O17Cl2, respectively. Furthermore, the photocatalytic reduction efficiency can be significantly improved via the addition of some green small organic acids (SOAs). As well, the BPA degradation can be achieved over an extensive initial pH range of 3.0-11.0. When the PS concentration increased to more than 2.0 mM, the BPA degradation efficiency decreased due to the SO4-• self-scavenging effect. It was also found that the co-existence of inorganic anions like H2PO4-, HCO3-, SO42-, Cl- and NO3- could decelerate the BPA degradation. The excellent photocatalytic Cr(VI) reduction and persulfate activation performances originated from both MIL-100(Fe) with excellent PS activation ability and Bi12O17Cl2 with a favorable band position, which not only enabled the efficient separation of charges but also accelerated the formation of SO4-• radicals. The BM200 displayed prominent stability and recyclability. More importantly, the credible degradation pathway was proposed based on UHPLC-MS analysis and DFT calculation. This research revealed that the Fe-based MOFs/bismuth-rich bismuth oxyhalides (BixOyXz, X = Cl, Br and I) composites possessed great potential in wastewater remediation.
Collapse
Affiliation(s)
- Chen Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Jiasheng Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Xi Chen
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Zhihua Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Haodong Ji
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Long Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Wen Liu
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Chong-Chen Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| |
Collapse
|
20
|
Gao YH, Ji XH, Zhang D, Liu ZF, Lu JF. Microwave-assisted fabrication of CQDs/ZnIn2S4 nanocomposites for synergistic photocatalytic removal of Cr(VI) and rhodamine B. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1862210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yan-Hong Gao
- Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, P.R. China
| | - Xiao-Hui Ji
- Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, P.R. China
| | - Dan Zhang
- Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, P.R. China
| | - Zhi-Feng Liu
- Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, P.R. China
| | - Jiu-Fu Lu
- Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, P.R. China
| |
Collapse
|
21
|
Guo HL, Wang YK, Qu XJ, Li HY, Yang W, Bai Y, Dang DB. Three-Dimensional Interpenetrating Frameworks Based on {P 4Mo 6} Tetrameric Clusters and Filled with In Situ Generated Alkyl Viologens. Inorg Chem 2020; 59:16430-16440. [PMID: 33099996 DOI: 10.1021/acs.inorgchem.0c02253] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four novel three-dimensional interpenetrating frameworks based on {P4Mo6} units, H[C12H14N2]4[TM4(PO4)(H2O)4Na6][TM2(Mo6O12(HPO4)3(PO4)(OH)3)4]·8H2O (1, 2) and H[C14H18N2]4[TM4(PO4)(H2O)4Na6][TM2(Mo6O12(HPO4)3(PO4)(OH)3)4]·8H2O (3, 4) (TM = Co2+ (1, 3), Mn2+ (2, 4)) were synthesized and characterized using infrared spectroscopy, elemental analyses, thermogravimetric analysis, and single-crystal X-ray diffraction. In situ generated methyl viologen (compounds 1 and 2) or ethyl viologen (compounds 3 and 4) cations function as templates to induce the generation of 2-fold interpenetrating structures in which the {P4Mo6} tetrameric clusters with [TM4(PO4)Na6] (TM = Co2+ (1, 3) and Mn2+ (2, 4)) as the core were bridged by transition metal ions. Compounds 1-4 possess high thermal stabilities and the decomposition temperature of the inorganic frameworks were all >500 °C. It is worth noting that the four compounds all exhibited the bifunctional catalytic performance that they not only had an excellent photocatalytic activity for the reduction of hexavalent chromium (Cr(VI)) under visible light irradiation but also showed a good electrocatalytic activity for the reduction reaction of hydrogen peroxide.
Collapse
Affiliation(s)
- Hui-Li Guo
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Yi-Kun Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Xiao-Jie Qu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Hai-Yan Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Wei Yang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Yan Bai
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Dong-Bin Dang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| |
Collapse
|
22
|
Gang R, Xu L, Xia Y, Cai J, Zhang L, Wang S, Li R. Fabrication of MoS2 QDs/ZnO nanosheet 0D/2D heterojunction photocatalysts for organic dyes and gaseous heavy metal removal. J Colloid Interface Sci 2020; 579:853-861. [DOI: 10.1016/j.jcis.2020.06.116] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 06/27/2020] [Accepted: 06/27/2020] [Indexed: 02/08/2023]
|
23
|
Kumar A, Yasin G, Korai RM, Slimani Y, Ali MF, Tabish M, Tariq Nazir M, Nguyen TA. Boosting oxygen reduction reaction activity by incorporating the iron phthalocyanine nanoparticles on carbon nanotubes network. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108160] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
24
|
Bilgic A, Cimen A. Two Novel BODIPY-Functional Magnetite Fluorescent Nano-Sensors for Detecting of Cr(VI) Ions in Aqueous Solutions. J Fluoresc 2020; 30:867-881. [PMID: 32494934 DOI: 10.1007/s10895-020-02559-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/11/2020] [Indexed: 12/11/2022]
Abstract
In this study, we developed two different very sensitive magnetite fluorescent Fe3O4@SiO2-TPED-BODIPY and Fe3O4@SiO2-TMPTA-BODIPY nano-sensors for the selective detection of Cr(VI) ions. The Cr(VI) metal ions sensing is based on the fluorescent quenching of BODIPY functionalized with Fe3O4@SiO2-TPED and Fe3O4@SiO2-TMPTA nanoparticles in the ethanol-water environment. Characterization of the newly synthesized fluorescent BODIPY compound was performed on a 1H and 13C-NMR spectrometer. The morphology, chemical and physical properties of the sensing nano-sensors were studied by transmission thermogravimetric analysis (TGA), X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscopy (SEM), FT-IR spectroscopy, and transmission electron microscopy (TEM). UV-visible and fluorescent spectroscopy were used to characterize BODIPY functionalized magnetite fluorescent nano-sensors. Characterization measurements revealed that the mean particle diameter of magnetite fluorescent Fe3O4@SiO2-TPED-BODIPY and Fe3O4@SiO2-TMPTA-BODIPY nano-sensors was 18.5 and 19 nm, respectively. The magnetite fluorescent Fe3O4@SiO2-TPED-BODIPY and Fe3O4@SiO2-TMPTA-BODIPY nano-sensors (0.1 gL-1 in EtOH/H2O, v/v (3/7)) showed fluorescence quenching responses towards Cr(VI) ions in the medium at pH:1. The fluorescence quenches of the magnetite fluorescent Fe3O4@SiO2-TPED-BODIPY and Fe3O4@SiO2-TMPTA-BODIPY nano-sensors by Cr(VI) were completed in first 5 and 3 min. Respectively. These features provide potential uses of BODIPY functionalized magnetite fluorescent nano-sensors (Fe3O4@SiO2-TPED-BODIPY and Fe3O4@SiO2-TMPTA-BODIPY) as a new class of non-toxic sensors for environmental applications. Graphical Abstract.
Collapse
Affiliation(s)
- Ali Bilgic
- Faculty of Kamil Ozdag Science, Department of Chemistry, Karamanoglu Mehmetbey University, 70200, Karaman, Turkey.
| | - Aysel Cimen
- Faculty of Kamil Ozdag Science, Department of Chemistry, Karamanoglu Mehmetbey University, 70200, Karaman, Turkey
| |
Collapse
|
25
|
Zaki AH, Shalan AE, El-Shafeay A, Gadelhak YM, Ahmed E, Abdel-Salam MO, Sobhi M, El-Dek SI. Acceleration of ammonium phosphate hydrolysis using TiO 2 microspheres as a catalyst for hydrogen production. NANOSCALE ADVANCES 2020; 2:2080-2086. [PMID: 36132532 PMCID: PMC9416965 DOI: 10.1039/d0na00204f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/04/2020] [Indexed: 06/15/2023]
Abstract
Titania microspheres are considered an adequate material with low cost and easily attainable pathways, and can be utilized in photocatalytic H2 production to solve the energy crisis. Spherical porous titanium dioxide materials, with nanostructure composition, were chemically synthesized from titanate nanotubes via a simple hydrothermal technique, then added as a catalyst to accelerate the route of ammonium phosphate hydrolysis for hydrogen production. The mechanism of sphere formation from titanate nanotubes is elucidated in detail through the current study. The prepared materials were applied as a photocatalyst to facilitate the separation and transfer of photoinduced electrons, while preventing the recombination of electron-hole pairs. Experimental results show that the obtained microspheres possess significantly enhanced photocatalytic hydrogen (H2) production performance. The amount of photocatalytic hydrogen product using the microspheres is found to be ∼2.5 fold greater than that of titanate nanotubes. Analytical techniques such as field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HR-TEM), simulated visible solar light and X-ray diffraction (XRD) were used for the evaluation and characterization of the developed products, as well as the elucidation of the route of hydrolysis in the hydrogen production process.
Collapse
Affiliation(s)
- Ayman H Zaki
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University Beni-Suef Egypt
| | - Ahmed Esmail Shalan
- Central Metallurgical Research and Development Institute P.O. Box 87 Helwan 11422 Cairo Egypt
- BCMaterials-Basque Center for Materials, Applications and Nanostructures, Martina Casiano UPV/EHU Science Park, Barrio Sarriena s/n Leioa 48940 Spain
| | - Aya El-Shafeay
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University Beni-Suef Egypt
| | - Yasser M Gadelhak
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University Beni-Suef Egypt
| | - Enas Ahmed
- Renewable Energy Science and Engineering Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University Egypt
| | - M O Abdel-Salam
- Egyptian Petroleum Research Institute P.O. 11727 Nasr City Cairo Egypt
| | - M Sobhi
- Central Metallurgical Research and Development Institute P.O. Box 87 Helwan 11422 Cairo Egypt
| | - S I El-Dek
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University Beni-Suef Egypt
| |
Collapse
|
26
|
Danty PMP, Mazel A, Cormary B, De Marco ML, Allouche J, Flahaut D, Jimenez-Lamana J, Lacomme S, Delville MH, Drisko GL. Microwave-Assisted and Metal-Induced Crystallization: A Rapid and Low Temperature Combination. Inorg Chem 2020; 59:6232-6241. [DOI: 10.1021/acs.inorgchem.0c00358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul M. P. Danty
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France
| | - Antoine Mazel
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France
| | - Benoit Cormary
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France
| | - Maria L. De Marco
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France
| | - Joachim Allouche
- CNRS, Université de Pau & Pays Adour, E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l’Environnement et les Matériaux, UMR 5254, 64000 Pau, France
| | - Delphine Flahaut
- CNRS, Université de Pau & Pays Adour, E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l’Environnement et les Matériaux, UMR 5254, 64000 Pau, France
| | - Javier Jimenez-Lamana
- CNRS, Université de Pau & Pays Adour, E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l’Environnement et les Matériaux, UMR 5254, 64000 Pau, France
| | - Sabrina Lacomme
- Bordeaux Imaging Centre (UMS3420 CNRS—Université de Bordeaux/US4 INSERM), 146 rue Léo Saignat, 33000 Bordeaux, France
| | | | - Glenna L. Drisko
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France
| |
Collapse
|
27
|
Zhao X, Zhang G, Zhang Z. TiO 2-based catalysts for photocatalytic reduction of aqueous oxyanions: State-of-the-art and future prospects. ENVIRONMENT INTERNATIONAL 2020; 136:105453. [PMID: 31924583 DOI: 10.1016/j.envint.2019.105453] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/26/2019] [Accepted: 12/26/2019] [Indexed: 05/22/2023]
Abstract
Nowadays, an increasing discharge of oxyanions to the natural environment has been attracting worldwide attention. TiO2-based photocatalysis is regarded as one of the most promising technologies for the conversion of toxic oxyanions (such as chromate, nitrate, nitrite, bromate, perchlorate and selenate) to harmless and/or less toxic substances in contaminated waters. Various types of TiO2-based catalysts have been developed, and each of them exhibits its own advantages in catalytic reduction of oxyanions. However, the application of these nanostructured TiO2 in real water bodies remains a challenge, with limitations associated with sunlight harvesting abilities, production costs, reuse stability and exposure risks. Herein, we aim to present a critical review on reported TiO2-based photocatalytic reduction of aqueous oxyanions, provide a comprehensive understanding of the possible reaction pathways of formed active species, and evaluate the reduction performance of different types of TiO2-based catalysts. In addition, the impact of operating parameters (such as solution pH, temperature, dissolved oxygen and coexisting substances) on catalytic reduction performance is discussed. Furthermore, the perspectives of TiO2-based photocatalytic reduction of oxyanions are also proposed.
Collapse
Affiliation(s)
- Xuesong Zhao
- Institute of Environmental Engineering and Nano-Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; School of Environment, Tsinghua University, Beijing 100084, China
| | - Guan Zhang
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen (HITSZ), Shenzhen 518055, PR China
| | - Zhenghua Zhang
- Institute of Environmental Engineering and Nano-Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; School of Environment, Tsinghua University, Beijing 100084, China.
| |
Collapse
|
28
|
Liang Y, Yang Y, Xu K, Yu T, Yang Q, Shi P, Yuan C. Crystal facets engineering and rGO hybridizing for synergistic enhancement of photocatalytic activity of nickel disulfide. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121402. [PMID: 31668761 DOI: 10.1016/j.jhazmat.2019.121402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/23/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
Crystal facets engineering and graphene hybridizing have been proved to be effective means to improve the photocatalytic activities of semiconductor photocatalysts in recent years. However, most of these efforts are concentrated in metal oxides. In the present study, crystal facets effect on the photocatalytic activity of metal sulfide NiS2 was studied for the first time. It was found that the {111}-faceted NiS2 nanocrystals showed improved photocatalytic activity in the degradation of various typical pollutants in water compared with {100}-faceted NiS2 nanocrystals. Moreover, through hybridizing with rGO nanosheets, the photocatalytic activity of the {111}-faceted NiS2 nanocrystals can be further improved, resulting in the complete degradation of heavy metal hexavalent chromium and organic dyes. The photocatalytic mechanism was studied in detail through theory calculation and experimental characterization. It was found that both the surface energies of Ni-terminated and S-terminated {111} facets were much higher than that of {100} facets, indicating that {111} facets were more active. Besides, rGO hybridizing can realize the effective separation of photogenerated electrons and holes. The results provide important guidance for the further development of efficient metal sulfide photocatalysts.
Collapse
Affiliation(s)
- Yan Liang
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China
| | - Yong Yang
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China.
| | - Keng Xu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China
| | - Ting Yu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China
| | - Qing Yang
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China
| | - Pengyuan Shi
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China
| | - Cailei Yuan
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, PR China.
| |
Collapse
|
29
|
Deng F, Luo Y, Li H, Xia B, Luo X, Luo S, Dionysiou DD. Efficient toxicity elimination of aqueous Cr(VI) by positively-charged BiOCl xI 1-x, BiOBr xI 1-x and BiOCl xBr 1-x solid solution with internal hole-scavenging capacity via the synergy of adsorption and photocatalytic reduction. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121127. [PMID: 31518810 DOI: 10.1016/j.jhazmat.2019.121127] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/19/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
The ecological toxicity of photocatalysts and toxicity reduction of Cr(VI) have attracted much attention. The development of environmentally-friendly photocatalysts with adsorption and internal hole-scavenging capacity for toxicity reduction of aqueous Cr(VI) via facile preparation method is desirable. In this study, visible-light-active BiOClxBr1-x, BiOClxI1-x and BiOBrxI1-x solid solutions were prepared by simple solvothermal strategy. The BiOCl0.3Br0.7, BiOCl0.7I0.3 and BiOBr0.7I0.3 solid solutions exhibited excellent adsorption capacity and photoreduction ability. The removal efficiency of Cr(VI) by BiOCl0.3Br0.7 was 97.7% within 60 min. BiOCl0.7I0.3 and BiOBr0.7I0.3 can remove Cr(VI) almost completely within less than 30 min, which were much higher than those by BiOCl (81.6%) and BiOBr (67.4%) due to joint effect of adsorption and photoreduction. More importantly, the toxicity evaluation confirmed nontoxicity of BiOClxBr1-x, BiOClxI1-x and BiOBrxI1-x, and rapid toxicity elimination process of Cr(VI).
Collapse
Affiliation(s)
- Fang Deng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Yingbo Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Hui Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Baihui Xia
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China.
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China.
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (DChEE), University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| |
Collapse
|
30
|
Chen T, Li W, Chen X, Guo Y, Hu W, Hu W, Liu YA, Yang H, Wen K. A Triazine‐Based Analogue of Graphyne: Scalable Synthesis and Applications in Photocatalytic Dye Degradation and Bacterial Inactivation. Chemistry 2020; 26:2269-2275. [DOI: 10.1002/chem.201905133] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/08/2019] [Indexed: 01/31/2023]
Affiliation(s)
- Tao Chen
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Wen‐Qian Li
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xiao‐Jia Chen
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
| | - Yun‐Zhe Guo
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Wei‐Bo Hu
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
| | - Wen‐Jing Hu
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
| | - Yahu A. Liu
- Medicinal ChemistryChemBridge Research Laboratories San Diego CA 92127 USA
| | - Hui Yang
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 P. R. China
| | - Ke Wen
- Shanghai Advanced Research InstituteChinese Academy of Sciences Shanghai 201210 P. R. China
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 P. R. China
| |
Collapse
|
31
|
Naranov ER, Sadovnikov AA, Vatsouro IM, Maximov AL. The mechanism of promoter-induced zeolite nanosheet crystallization under hydrothermal and microwave irradiation conditions. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00012d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of MFI zeolite nanosheet formation was established under accelerated conditions using perchlorate ions and fresh zeolite seeds as promoters.
Collapse
Affiliation(s)
- Evgeny R. Naranov
- Topchiev Institute of Petrochemical Synthesis
- Russian Academy of Sciences
- Moscow
- Russia
| | - Alexey A. Sadovnikov
- Topchiev Institute of Petrochemical Synthesis
- Russian Academy of Sciences
- Moscow
- Russia
- Kurnakov Institute of General and Inorganic Chemistry
| | | | - Anton L. Maximov
- Topchiev Institute of Petrochemical Synthesis
- Russian Academy of Sciences
- Moscow
- Russia
- Department of Chemistry
| |
Collapse
|
32
|
Liu H, Zhu X, Han R, Dai Y, Sun Y, Lin Y, Gao D, Wang X, Luo C. Study on the internal electric field in the Cu2O/g-C3N4 p–n heterojunction structure for enhancing visible light photocatalytic activity. NEW J CHEM 2020. [DOI: 10.1039/c9nj05737d] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu2O/g-C3N4 p–n heterojunction efficiently removes tetracycline in the presence of a built-in electric field.
Collapse
Affiliation(s)
- Hao Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Xiaodong Zhu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Rui Han
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yuxue Dai
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yuanling Sun
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yanna Lin
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Dandan Gao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Xueying Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Chuannan Luo
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| |
Collapse
|
33
|
Aggarwal R, Anand SR, Saini D, Singh R, Sonker AK, Sonkar SK. Surface-passivated, soluble and non-toxic graphene nano-sheets for the selective sensing of toxic Cr(vi) and Hg(ii) metal ions and as a blue fluorescent ink. NANOSCALE ADVANCES 2019; 1:4481-4491. [PMID: 36134401 PMCID: PMC9419804 DOI: 10.1039/c9na00377k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 10/02/2019] [Indexed: 06/13/2023]
Abstract
Non-toxic amine-functionalized soluble graphene nano-sheets (f-GNS) were synthesized by using an old and well-known simple organic procedure. The f-GNS exhibited enhanced optical properties, such as strong blue fluorescence emission with a high value of quantum yield (∼13%). The O,O'-bis-(2-aminopropyl) polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol 800 as block polymeric amine (BPA)-passivized surface of f-GNS exhibited high aqueous solubility and excitation-dependent fluorescence emission behavior with a strong photo-stability performance. These f-GNS were tested for the significant selective sensing of toxic metal ions Cr(vi) and Hg(ii) from various tested toxic metal ions. The sensing experiment was supported by cyclic voltammetry analysis. The dual metal ion sensing method based on fluorescence showed the limit of detection (LOD) of ∼56 nM for Cr(vi) and ∼45 nM for Hg(ii) through a fluorescence quenching process. f-GNS were found to be non-toxic when tested over Escherichia coli (E.coli) cells. Additionally, the strong blue emission properties of f-GNS enabled their use as a suitable blue fluorescent ink under UV light illumination.
Collapse
Affiliation(s)
- Ruchi Aggarwal
- Department of Chemistry, Malaviya National Institute of Technology Jaipur-302017 India
| | - Satyesh Raj Anand
- Department of Chemistry, Malaviya National Institute of Technology Jaipur-302017 India
| | - Deepika Saini
- Department of Chemistry, Malaviya National Institute of Technology Jaipur-302017 India
| | - Ravindra Singh
- Department of Chemistry, Maharani Shri Jaya Government Post-Graduate College Bharatpur Rajasthan-321001 India
| | - Amit Kumar Sonker
- Department of Materials Science and Engineering, Department of Bio-nanotechnology Gachon University Gyeonggi-do South Korea
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology Jaipur-302017 India
| |
Collapse
|
34
|
Synthesis and characterization of visible light driven N—Fe‐codoped TiO
2
/SiO
2
for simultaneous photoremoval of Cr (VI) and azo dyes in a novel fixed bed continuous flow photoreactor. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23660] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
35
|
Li N, Li W, Fu F. Removal of chromium(VI) by MnFe 2O 4 and ferrous ion: synergetic effects and reaction mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:30498-30507. [PMID: 31444724 DOI: 10.1007/s11356-019-06261-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
MnFe2O4 was a magnetic material that can be used to adsorb contaminants in the wastewater. Fe(II) could act as a reductant to transfer Cr(VI) into Cr(III). In this paper, mesoporous MnFe2O4 prepared by the coprecipitation method was incorporated with Fe(II) to remove Cr(VI). The samples before and after reaction were characterized by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. A total of 98~100% of Cr(VI) in solution was removed by MnFe2O4/Fe(II) hybrid system within a wide pH range (pH 3.0-9.0), which is due to the synergetic effects of adsorption from MnFe2O4 and reduction from Fe(II). Cr(VI) was reduced to Cr(III) by ≡Mn(II) on MnFe2O4 and Fe(II). Cr(III) and Fe(III) produced during reaction formed Cr(III)-Fe(III) hydroxides/oxyhydroxides and deposited on MnFe2O4. The inhibiting action of phosphate on the removal of Cr(VI) was greater than that of sulfate. Cr(VI) removal rate retained 94.5% at the fourth recycle test, which showed excellent re-usability of MnFe2O4.
Collapse
Affiliation(s)
- Na Li
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Weibin Li
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Fenglian Fu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| |
Collapse
|
36
|
Ghanbari S, Givianrad MH, Aberoomand Azar P. Simultaneous reduction of Cr (VI) and degradation of azo dyes by F-Fe-codoped TiO2/SiO2 photocatalysts under visible and solar irradiation. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new TiO2/SiO2 photocatalyst codoped with fluorine and iron was synthesized using the sol–gel process and immobilized onto glass beads by coupling two methods of dip coating and heat attachment. The prepared samples were characterized by XRD, FTIR, DRS-UV–vis, FESEM, EDX, TEM, and N2 adsorption–desorption analysis. The effective parameters of pH, flow rate, and photoreactor vessels’ angle against solar irradiation on degradation performance were optimized. Subsequently, the photocatalytic activity of the prepared nanocomposites was investigated in an innovative fabricated photoreactor using a four-component pollutant mixture of Cr (VI), basic red 29, basic blue 41, and basic yellow 51 under visible and solar irradiation. Furthermore, the effectiveness of photoreactor performance was assessed under various outdoor climate conditions as natural irradiation sources. Consequently, UV–vis spectrophotometry results showed significant efficiency of photocatalytic removal of the pollutant mixture. TOC results of 74.39% and 78.04% for removal of organic content of the sample under visible and solar light, respectively, were also confirmed the great capability of the designed system for the simultaneous removal of some hazardous inorganic and organic contaminants under natural light sources.
Collapse
Affiliation(s)
- Sina Ghanbari
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Hadi Givianrad
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Parviz Aberoomand Azar
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
37
|
Shvalagin V, Ermokhina N, Romanovska N, Barakov R, Manorik P, Sapsay V, Shcherbakov S, Poddubnaya O, Puziy A. Mesoporous TiO2 microspheres with improved efficiency for photooxidation of volatile organic compounds. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03896-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
Effect of defects in TiO2 nanoplates with exposed {001} facets on the gas sensing properties. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.12.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
39
|
Wang Z, Fang P, Kumar P, Wang W, Liu B, Li J. Controlled Growth of LDH Films with Enhanced Photocatalytic Activity in a Mixed Wastewater Treatment. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E807. [PMID: 31141978 PMCID: PMC6631146 DOI: 10.3390/nano9060807] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/16/2019] [Accepted: 05/17/2019] [Indexed: 11/17/2022]
Abstract
Due to multiple charge transport pathways, adjustable layer spacing, compositional flexibility, low manufacturing cost, and absorption of visible light, layered double hydroxides (LDHs) are a promising material for wastewater treatment. In this study, LDH films and Fe-doped LDH films with different metal ions (Ni, Al, Fe) on the surface of conductive cloth were successfully prepared and applied for the photocatalytic degradation of wastewater containing methyl orange and Ag ions under visible-light irradiation. The chemical state of Fe ions and the composition of LDHs on methyl orange photodegradation were investigated. The experimental results showed that LDH films exhibited high photocatalytic activity. The photocatalytic activity of LDH films on methyl orange improved in the mixed wastewater, and the Fe-doped NiAl-LDH films exhibited best visible-light photocatalytic performance. The analysis showed that Ag ions in the mixed wastewater were reduced by the LDH films and subsequently deposited on the surface of the LDH films. The Ag nanoparticles acted as electron traps and promoted the photocatalytic activity of the LDH films on methyl orange. Thus, we have demonstrated that prepared LDH films can be used in the treatment of mixed wastewater and have broad application prospects in environmental remediation and purification processes.
Collapse
Affiliation(s)
- Zhongchuan Wang
- School of Material Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Pengfei Fang
- School of Material Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Parveen Kumar
- Laboratory of Functional Molecular and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Weiwei Wang
- School of Material Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Bo Liu
- School of Material Science and Engineering, Shandong University of Technology, Zibo 255000, China.
- Laboratory of Functional Molecular and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Jiao Li
- School of Material Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| |
Collapse
|
40
|
Jaihindh DP, Thirumalraj B, Chen SM, Balasubramanian P, Fu YP. Facile synthesis of hierarchically nanostructured bismuth vanadate: An efficient photocatalyst for degradation and detection of hexavalent chromium. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:647-657. [PMID: 30654282 DOI: 10.1016/j.jhazmat.2019.01.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/03/2019] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
Heterostructured nanomaterials can paid more significant attention in environmental safety for the detection and degradation/removal of hazardous toxic chemicals over a decay. Here, we report the preparation of hierarchically nanostructured shuriken like bismuth vanadate (BiVO4) as a bifunctional catalyst for photocatalytic degradation and electrochemical detection of highly toxic hexavalent chromium (Cr(VI)) using the green deep eutectic solvent reline, which allows morphology control in one of the less energy-intensive routes. The SEM results showed a good dispersion of BiVO4 catalyst and the HR-TEM revealed an average particle size of ca. 5-10 nm. As a result, the BiVO4 exhibited good photocatalytic activity under UV-light about 95% reduction of Cr(VI) to Cr(III) was observed in 160 min. The recyclability of BiVO4 catalyst exhibited an appreciable reusability and stability of the catalyst towards the photocatalytic reduction of Cr(VI). Also, the BiVO4-modified screen printed carbon electrode (BiVO4/SPCE) displayed an excellent electrochemical performance towards the electrochemical detection of Cr(VI). Besides, the BiVO4/SPCE demonstrated tremendous electrocatalytic activity, lower linear range (0.01-264.5 μM), detection limit (0.0035 μM) and good storage stability towards the detection of Cr(VI). Importantly, the BiVO4 modified electrode was also found to be a good recovery in water samples for practical applications.
Collapse
Affiliation(s)
- Dhayanantha Prabu Jaihindh
- Department of Materials Science and Engineering, National Dong Hwa University, Shoufeng, Hualien, 97401, Taiwan
| | - Balamurugan Thirumalraj
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan
| | - Sheng-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan.
| | - Paramasivam Balasubramanian
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan
| | - Yen-Pei Fu
- Department of Materials Science and Engineering, National Dong Hwa University, Shoufeng, Hualien, 97401, Taiwan.
| |
Collapse
|
41
|
Mapukata S, Osifeko OL, Nyokong T. Dual phototransformation of the pollutants methyl orange and Cr (VI) using phthalocyanine-cobalt ferrite based magnetic nanocomposites. Heliyon 2019; 5:e01509. [PMID: 31025016 PMCID: PMC6476804 DOI: 10.1016/j.heliyon.2019.e01509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 02/06/2019] [Accepted: 04/08/2019] [Indexed: 11/06/2022] Open
Abstract
Bifunctional nanocomposites based on zinc phthalocyanines and glutathione capped CoFe2O4 magnetic nanoparticles (GSH-CoFe2O4 MNPs) are applied in a binary system wherein simultaneous photooxidation of methyl orange (MO) and photoreduction of Cr (VI) are conducted. The photoactivity of two zinc Pcs with different functional moieties are compared based on their interactions with GSH-CoFe2O4 MNPs. Conjugation of the Pcs to the GSH-CoFe2O4 MNPs not only enhanced their singlet oxygen production but also their photocatalytic activity in both photooxidation and photoreduction experiments. Using electron paramagnetic resonance (EPR) spectroscopy, the Pc-MNP conjugates reported herein were found to exhibit superparamagnetic behaviour, giving the advantage of easy separation using an external magnetic field post application, an attractive attribute for heterogeneous catalysis. The catalysts reported herein are therefore good candidates as catalysts for real life water purification analyses as they facilitate the treatment of both organic and inorganic water pollutants.
Collapse
Affiliation(s)
| | | | - Tebello Nyokong
- Centre for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| |
Collapse
|
42
|
Li Y, Wang L, Li Z, Liu Y, Peng Z, Zhou M, Zhang C, Jin W. Synthesis and photocatalytic property of V2O5@TiO2 core-shell microspheres towards gaseous benzene. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.02.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
43
|
Zhang Y, Bai R, Zhao Z, Liao Q, Chen P, Guo W, Cai C, Yang F. Highly selective and sensitive probes for the detection of Cr(vi) in aqueous solutions using diglycolic acid-functionalized Au nanoparticles. RSC Adv 2019; 9:10958-10965. [PMID: 35515295 PMCID: PMC9062733 DOI: 10.1039/c9ra00010k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 03/05/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, a variety of diglycolic acid-functionalized gold nanoparticle (Au NP) probes are reported, which are highly sensitive for the detection of chromium ions, Cr(vi) ions, at low concentrations in aqueous solutions based on the application of surface plasmon resonance (SPR) theory. Due to its outstanding affinity for Cr(vi) ions, the capped diglycolic acid would induce the aggregation of the NP probes upon encountering them; this was evidenced by the obvious red-shifting of the SPR peak and the enlarged size of the NPs. For the same reason, the selectivity of the probe for Cr(vi) against other heavy metal ions was found to be remarkable. Under optimized conditions, the probe showed the limit of detection (LOD) of 0.32 ppb for Cr(vi) and a linear detection scale ranging from 0.32 ppb to 0.1 ppm. To the best of our knowledge, this is probably the lowest LOD reported for Cr(vi) detection among those of the methods based on SPR. In this study, we proposed a diglycolic acid-functionalized gold nanoparticle (Au NP) probe, which are highly sensitive for the detection of chromium ions based on the application of surface plasmon resonance (SPR) theory.![]()
Collapse
Affiliation(s)
- Yang Zhang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Ruixi Bai
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Zhigang Zhao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Qiuxia Liao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Peng Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Wanghuan Guo
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Chunqing Cai
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| | - Fan Yang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Xiamen 361021
| |
Collapse
|
44
|
Kong N, Park J, Yang X, Ramström O, Yan M. Carbohydrate Functionalization of Few-Layer Graphene through Microwave-Assisted Reaction of Perfluorophenyl Azide. ACS APPLIED BIO MATERIALS 2018; 2:284-291. [DOI: 10.1021/acsabm.8b00597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Na Kong
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 30, S-10044 Stockholm, Sweden
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, 201210 Shanghai, China
| | - JaeHyeung Park
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave., Lowell, Massachusetts 01854, United States
- Division of Advanced Materials Engineering, Dong-Eui University, Busan 47340, Korea
| | - Xiaojian Yang
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave., Lowell, Massachusetts 01854, United States
| | - Olof Ramström
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 30, S-10044 Stockholm, Sweden
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave., Lowell, Massachusetts 01854, United States
| | - Mingdi Yan
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 30, S-10044 Stockholm, Sweden
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave., Lowell, Massachusetts 01854, United States
| |
Collapse
|
45
|
Peng JH, Zhao YJ, Ul Hassan Q, Li HY, Liu YB, Ma SH, Mao DL, Li HQ, Meng LC, Hojamberdiev M. Rapid microwave-assisted solvothermal synthesis and visible-light-induced photocatalytic activity of Er3+-doped BiOI nanosheets. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.02.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
46
|
Xiao J, Li P, Wen X. Alkali-corrosion synthesis and excellent DSSC performance of novel jujube-like hierarchical TiO 2 microspheres. NANOTECHNOLOGY 2018; 29:175603. [PMID: 29446346 DOI: 10.1088/1361-6528/aaaf81] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Novel jujube-like hierarchical TiO2 microspheres (HTMs) were synthesized by an alkali-corrosion process of titanium phosphate (Ti2O3(H2PO4)2 · 2H2O) microspheres. The hierarchical titanium phosphate microsphere (HTPM) intermediates consisting of nanoflakes with a thickness of 20 nm were firstly prepared by a facile hydrothermal method. After reacting with diluted NaOH at low temperature and atmospheric pressure, followed by subsequent acid washing and a calcination process, the HTPM intermediates were transformed to TiO2 with the microsphere morphology well retained, while the nanoflakes became porous, and some new nanowires were formed between the nanoflakes. Finally, HTMs consisting of porous nanoflakes and nanowires were obtained. The possible growth mechanisms of HTPMs and HTMs are discussed. The HTMs demonstrate high specific surface area and excellent light-scattering ability. The performance of the dye sensitized solar cells (DSSCs) of the HTMs synthesized under different conditions is studied, and a total conversion efficiency of up to 8.93% was obtained. The improved DSSC performance was attributed to the enhanced dye loading, light-scattering, and charge transporting ability of the HTMs with a unique hierarchical nanostructure.
Collapse
Affiliation(s)
- Jiajia Xiao
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, Sichuan, People's Republic of China
| | | | | |
Collapse
|
47
|
Fan Y, Bao Y, Song Z, Sun Z, Wang D, Han D, Niu L. Controllable synthesis of coloured Ag0/AgCl with spectral analysis for photocatalysis. RSC Adv 2018; 8:24812-24818. [PMID: 35542155 PMCID: PMC9082299 DOI: 10.1039/c8ra04180f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 06/29/2018] [Indexed: 11/21/2022] Open
Abstract
Broad spectrum absorption of semiconductor photocatalysts is an essential requirement to achieve the best values of solar energy utilization. Here, through precise surface state adjustment, coaxial tri-cubic Ag0/AgCl materials with distinct apparent colours (blue and fuchsia) were successfully fabricated. The reasons for the different colour generation of the Ag0/AgCl materials were investigated by performing corresponding spectrum analysis. It was revealed that Ag0/AgCl-blue and Ag0/AgCl-fuchsia crystals could efficiently boost the photon energy harvesting, spanning from the UV to near-infrared spectral region (250–800 nm), and achieved 2.6 and 5.4 times the wastewater degradation efficiency of AgCl-white. Simultaneously, these two fresh coloured candidates were demonstrated to have preferable photocatalytic CO2 photoreduction capability, with yields of ∼3.6 (Ag0/AgCl-fuchsia) and 2.6 (Ag0/AgCl-blue) times that of AgCl-white. It is expected that this work will provide a beneficial perspective for understanding the solar absorption feature at both the major structure modulation and particular surface state regulation level. Through surface state modification, distinctly coloured AgCl (blue and fuchsia) materials have been successfully fabricated and exhibit a broader absorption region than normal white-coloured AgCl crystals for photocatalytic reactions.![]()
Collapse
Affiliation(s)
- Yingying Fan
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Yu Bao
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Zhongqian Song
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Zhonghui Sun
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Dandan Wang
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Dongxue Han
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Li Niu
- Center for Advanced Research on Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| |
Collapse
|
48
|
Yousaf B, Liu G, Abbas Q, Wang R, Ullah H, Mian MM, Amina A, Rashid A. Enhanced removal of hexavalent chromium from aqueous media using a highly stable and magnetically separable rosin-biochar-coated TiO2@C nanocomposite. RSC Adv 2018; 8:25983-25996. [PMID: 35541944 PMCID: PMC9082923 DOI: 10.1039/c8ra02860e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 07/03/2018] [Indexed: 11/21/2022] Open
Abstract
Recently, nanosized metal-oxides have been extensively investigated for their ability to remove metal ions from aqueous media. However, the activity and capacity of these nanosized metal-oxides for removing metal ions decrease owing to their agglomeration in aqueous media. Herein, we synthesized a highly stable and magnetically separable rosin-biochar-coated (RBC) TiO2@C nanocomposite through a facile and environment-friendly wet chemical coating process, followed by a one-step heating route (pyrolysis) for efficient removal of Cr(vi) from aqueous solution. An array of techniques, namely, TEM, HRTEM, TEM-EDS, XRD, FTIR, VSM, BET and TGA, were used to characterize the prepared nanocomposite. The pyrolysis of rosin into biochar and the fabrication of Fe onto the RBC-TiO2@C nanocomposite were confirmed by FTIR and XRD examination, respectively. Moreover, TEM and HRTEM images and elemental mapping using TEM-EDS showed good dispersion of iron and carbon on the surface of the RBC-TiO2@C nanocomposite. Sorption of Cr(vi) ions on the surface of the RBC-TiO2@C nanocomposite was very fast and efficient, having a removal efficiency of ∼95% within the 1st minute of reaction. Furthermore, thermodynamic analysis showed negative values of Gibb's free energy at all five temperatures, indicating that the adsorption of Cr(vi) ions on the RBC-TiO2@C nanocomposite was favorable and spontaneous. Conclusively, our results indicate that the RBC-TiO2@C nanocomposite can be used for efficient removal of Cr(vi) from aqueous media due to its novel synthesis and extraordinary adsorption efficacy during a short time period. A biochar-coated RBC-TiO2@C nanocomposite was synthesized using a wet chemical coating followed by a one-step heating route (pyrolysis) for the efficient removal of Cr(vi).![]()
Collapse
Affiliation(s)
- Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments
- School of Earth and Space Sciences
- University of Science and Technology of China
- PR China
- State Key Laboratory of Loess and Quaternary Geology
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments
- School of Earth and Space Sciences
- University of Science and Technology of China
- PR China
- State Key Laboratory of Loess and Quaternary Geology
| | - Qumber Abbas
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments
- School of Earth and Space Sciences
- University of Science and Technology of China
- PR China
| | - Ruwei Wang
- State Key Laboratory of Loess and Quaternary Geology
- Institute of Earth Environment
- The Chinese Academy of Sciences
- Xi'an
- China
| | - Habib Ullah
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments
- School of Earth and Space Sciences
- University of Science and Technology of China
- PR China
| | - Md Manik Mian
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments
- School of Earth and Space Sciences
- University of Science and Technology of China
- PR China
| | - Amina Amina
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention
- School of Resource and Environment
- Anhui Agriculture University
- PR China
| | - Audil Rashid
- EcoHealth Research Group
- Department of Environmental Sciences
- PMAS Arid Agriculture University Rawalpindi
- Pakistan
| |
Collapse
|
49
|
Luo T, Tian X, Yang C, Luo W, Nie Y, Wang Y. Polyethylenimine-Functionalized Corn Bract, an Agricultural Waste Material, for Efficient Removal and Recovery of Cr(VI) from Aqueous Solution. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:7153-7158. [PMID: 28753005 DOI: 10.1021/acs.jafc.7b02699] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, polyethylenimine-functionalized corn bract (PEI-CB) was first used to remove aqueous Cr(VI) via the "waste control by waste" concept. The results indicated that PEI-CB had an excellent performance for Cr(VI) removal and the maximum removal capacity was 438 mg/g. The adsorption of Cr(VI) was fitted to the Langmuir model, and kinetics of uptake could be described by a pseudo-second-order rate model well. Amine was proven to be the active center for Cr(VI) adsorption and partial reduction to Cr(III), while removal efficiency was enhanced at a lower pH value and higher temperature. Besides, nanosized Cr2O3 with a high purity was obtained by simple calcination of a Cr(VI)-laden adsorbent. Hence, this study provided a novel strategy for Cr(VI) wastewater remediation and pure Cr2O3 recovery. Prepared PEI-CB was then a promising alternative of low cost for replacement of the current expensive absorbent of removing Cr(VI) from wastewater from the view of sustainability.
Collapse
Affiliation(s)
- Tiantian Luo
- Faculty of Materials Science and Chemistry and ‡School of Environmental Studies, China University of Geosciences , Wuhan, Hubei 430074, People's Republic of China
| | - Xike Tian
- Faculty of Materials Science and Chemistry and ‡School of Environmental Studies, China University of Geosciences , Wuhan, Hubei 430074, People's Republic of China
| | - Chao Yang
- Faculty of Materials Science and Chemistry and ‡School of Environmental Studies, China University of Geosciences , Wuhan, Hubei 430074, People's Republic of China
| | - Wenjun Luo
- Faculty of Materials Science and Chemistry and ‡School of Environmental Studies, China University of Geosciences , Wuhan, Hubei 430074, People's Republic of China
| | - Yulun Nie
- Faculty of Materials Science and Chemistry and ‡School of Environmental Studies, China University of Geosciences , Wuhan, Hubei 430074, People's Republic of China
| | - Yanxin Wang
- Faculty of Materials Science and Chemistry and ‡School of Environmental Studies, China University of Geosciences , Wuhan, Hubei 430074, People's Republic of China
| |
Collapse
|
50
|
Cai J, Wu X, Zheng F, Li S, Wu Y, Lin Y, Lin L, Liu B, Chen Q, Lin L. Influence of TiO2 hollow sphere size on its photo-reduction activity for toxic Cr(VI) removal. J Colloid Interface Sci 2017; 490:37-45. [DOI: 10.1016/j.jcis.2016.11.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/05/2016] [Accepted: 11/07/2016] [Indexed: 10/20/2022]
|