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Ran T, Ji C, Zhang Q, Wang S, Zhang Y, Niu W, Wei T, Shi Y. Advanced treatment and reuse of dye wastewater using thermo-irreversible on/off switch starch with disruption of dissolution/precipitation dynamic equilibrium. Carbohydr Polym 2024; 342:122425. [PMID: 39048208 DOI: 10.1016/j.carbpol.2024.122425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/16/2024] [Accepted: 06/20/2024] [Indexed: 07/27/2024]
Abstract
The development of irreversible on/off switching materials is a potential strategy for unidirectional capture and encapsulation of pollutants, preventing the pollutant leakage problem resulting from the reversible dissolution of flocculants. Herein, a thermo-irreversible on/off switch starch (TISS) is prepared through modifying starch by etherification grafting glycidyl phenyl ether and 2,4-bis(dimethylamino)-6-chloro-[1,3,5]-triazine. It breaks the dissolution/precipitation dynamic equilibrium across heating-cooling cycles by thermal-induced irreversible coil-to-globule self-assembly of polymer chains, resulting in a 50-fold decrease in polymer solubility. Particularly, TISS shows a superior double-locking effect on pollutants and flocculants through its unique irreversible conformation memory capability, leading to a high-quality reuse water. 99.9 % of reactive brilliant red dye and 97.9 % of TISS remain fixed within sludge flocs even after prolonged immersion in cold water at 24 °C for 60 days. Furthermore, direct recycling and reuse of dye-bath energy can be realized through the isothermal flocculation and dyeing method, showing a 75 % decrease in energy consumption after three cycles compared to traditional dyeing techniques. This work presents a novel approach to constructing an irreversible pollutant delivery system using thermo-irreversible on/off switch starch, addressing the problems of high energy dissipation and water quality fluctuations during wastewater treatment.
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Affiliation(s)
- Tingmin Ran
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832000, China
| | - Chenchen Ji
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Qi Zhang
- Xinjiang Shenbang Environmental Engineering Co., Ltd, Shihezi 832000, China
| | - Shengxin Wang
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832000, China
| | - Yanxue Zhang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China
| | - Wenbin Niu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Tingting Wei
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Yulin Shi
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832000, China; State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
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2
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Song L, Wang B, Li J, Wang T, Li W, Xu X, Feng T, Yang H, Hou L. A self-cleaning photocatalytic membrane loaded with Bi 2O 2CO 3/In(OH) 3 S-scheme heterojunction composites for removing tetracycline from aqueous solutions. J Colloid Interface Sci 2024; 671:664-679. [PMID: 38820850 DOI: 10.1016/j.jcis.2024.05.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/22/2024] [Accepted: 05/26/2024] [Indexed: 06/02/2024]
Abstract
Bi2O2CO3/In(OH)3 (BON) photocatalysts were synthesized by a one-pot method and loaded onto polyvinylidene fluoride (PVDF) membranes to obtain a Bi2O2CO3/In(OH)3/PVDF (BON-M) catalytic membrane system. The catalytic membranes demonstrated complete degradation of tetracycline within 40 min under visible light. They demonstrated robust photocatalytic activity across a broad pH range (5-11) and in the presence of coexisting ions. The membranes demonstrated excellent self-cleaning performance. Following exposure to light, the irreversible contamination decreased from 27.1% to 4.7% and the membrane's permeability was almost completely restored. Moreover, the charge transfer mechanism at the S-scheme heterojunction interface of BON was demonstrated by Density functional theory and in-situ X-ray Photoelectron Spectroscopy characterisation, and the active sites involved in tetracycline's degradation were identified. Meanwhile, the mechanism of the "anemone effect" of BON-M was demonstrated in conjunction with Electron paramagnetic resonance, and the intrinsic Some factors enhancing the membranes' photocatalytic activity are specified.
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Affiliation(s)
- Lei Song
- College of Civil Engineering, Guizhou University, Guiyang 550025, China
| | - Bin Wang
- College of Civil Engineering, Guizhou University, Guiyang 550025, China; Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Jiang Li
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Tao Wang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Wenjia Li
- College of Civil Engineering, Guizhou University, Guiyang 550025, China
| | - Xiaoyi Xu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Taotao Feng
- College of Civil Engineering, Guizhou University, Guiyang 550025, China
| | - Huaikai Yang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Li'an Hou
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
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3
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Deng Y, Liu J, Zhou Z, Li L, Shi Y, Tang R, Li W, Huang Y. Recent Advances in Piezoelectric Coupled with Photocatalytic Reaction System: Synergistic Mechanism, Enhancement Factors, and Application. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39258709 DOI: 10.1021/acsami.4c03256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
The field of photocatalysis has demonstrated numerous advantages in the domains of environmental protection, energy, and materials science. However, conventional modification methods fail to simultaneously enhance carrier separation efficiency, redox capacity, and visible light absorption solely through light activation due to the intrinsic band structure limitations of photocatalysts. In addition to modification methods, the introduction of an external field, such as a piezoelectric field, can effectively address deficiencies in each step of the photocatalytic process and enhance the overall performance. The assistance of a piezoelectric field overcomes the limitations inherent in traditional photocatalytic systems. Hence, this review provides a comprehensive overview of recent advancements in piezoelectric-assisted photocatalysis and thoroughly investigates the interaction between the alternating piezoelectric field and photocatalytic processes. Various ideas for synergistic enhancement of the piezoelectric and photocatalytic properties are also explored. This multifield catalytic system shows remarkable performance in stability, pollutant degradation, and energy conversion, distinguishing it from single catalytic systems. Finally, an in-depth analysis is conducted to address the challenges and prospects associated with piezoelectric photocatalysis technology.
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Affiliation(s)
- Yaocheng Deng
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Jiawei Liu
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Zhanpeng Zhou
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
- College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Ling Li
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
- College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Yu Shi
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Rongdi Tang
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Wenbo Li
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
- College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Ying Huang
- College of Resources, Hunan Agricultural University, Changsha 410128, China
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Attri P, Chauhan M, Singh R, Kumar S, Garg P, Lim DK, Chaudhary GR. Fabrication of sulfur doped exfoliated gCN photocatalyst for enhanced visible light degradation of pernicious organic pollutants and their photocatalytic antibacterial activity. CHEMOSPHERE 2024; 364:143178. [PMID: 39214404 DOI: 10.1016/j.chemosphere.2024.143178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 07/15/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
The synthesis of sulfur-doped exfoliated graphitic carbon nitride (S-gCN) photocatalyst was achieved by the implementation of a two-step calcination technique. The XRD results revealed that all the fabricated photocatalytic materials were crystalline in nature. The inclusion of 5% sulfur in gCN led to a conspicuous escalation in the surface area of photocatalyst, rising from 10.294 to 61.185 m2g⁻1. Morphological scrutiny of the samples using FE-SEM revealed that pristine gCN exhibited tightly stacked small nanosheets, whereas inclusion of sulfur and exfoliation resulted in generation of loosely distributed large nanosheet. Furthermore, the inclusion of sulfur also induced a shift in the energy band gap (Eg) from 2.81 eV to 2.63 eV, making it felicitous for investigation as proficient visible light photocatalyst. Additionally, the photoluminescence photo-induced charge carrier recombination behavior revealed a reduced peak intensity for 5% S-gCN compared to other synthesized compositions. This observation can be directly linked to the minimized electron-hole pairs recombination during photocatalysis, underscoring its superior photocatalytic performance. Our findings revealed that the 5% S-gCN photocatalyst exhibit the most promising attributes, it degraded Tetracycline drug, Chlorpyrifos pesticide and Eriochrome Black T dye under visible light irradiation almost ∼4 times more efficiently than pristine gCN. Additionally, exceptional visible light photocatalytic antibacterial efficacy was also perceived by 5% S-gCN against S. aureus bacteria. Overall, the present research sheds light on how doping and exfoliation interact to modify the structure and catalytic properties of gCN, paving the way for the development of outstanding performance, visible light-responsive efficient photocatalysts for environmental restoration.
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Affiliation(s)
- Prerna Attri
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Moondeep Chauhan
- Central Instrumental Lab, Amity University, Mohali, Panjab, 140306, India
| | - Rajender Singh
- Sophisticated Analytical Instrumentation Facility (SAIF)/CIL, Panjab University, Chandigarh, 160014, India
| | - Sandeep Kumar
- Physics Department, Punjab Engineering College (Deemed to be University), Chandigarh, 160012, India
| | - Preeti Garg
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India.
| | - Dong-Kwon Lim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea.
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India; Sophisticated Analytical Instrumentation Facility (SAIF)/CIL, Panjab University, Chandigarh, 160014, India.
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Tang X, Tang R, Li W, Li X, Zheng J, Li L, Zhou Z, Yi F, Deng Y, Gong D. Tourmaline/pyrite dual mineral photocatalysis with a powerful surface electric field for efficient antibiotic removal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121718. [PMID: 38971064 DOI: 10.1016/j.jenvman.2024.121718] [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: 03/28/2024] [Revised: 06/02/2024] [Accepted: 07/02/2024] [Indexed: 07/08/2024]
Abstract
Pyrite (FeS2) has garnered attention due to its narrow bandgap, high light absorption, and low cost. However, the rapid recombination of charge carriers hinders its practical application. Surface electric field is a unique characteristic of tourmaline, which can induce effective separation of photo generated electrons and holes. This study successfully combined two directly mined natural minerals, tourmaline and pyrite, to form TFS. Characterization and experiments show that the surface electric field of tourmaline can significantly enhance the photocatalytic activity of TFS. Tetracycline (TC, 50 ppm) was degraded by 95% with 60 min, and the TFS reaction rate constant reached 0.0439 min-1, which is 6.1 times and 17.3 times higher than that of tourmaline and FeS2. Additionally, it significantly improved light absorption and charge carrier separation capabilities. After simulating various natural environmental factors, TFS demonstrated practicality. Considered analysis of active substances and detection revealed that h+ and 1O2 radicals are significant contributors, and the photocatalytic mechanism was proposed. Furthermore, the transformation pathways and toxicity of metabolites were studied. This research offers further inspiration and insights for improving photocatalytic material performance and the green governance environment of natural resources.
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Affiliation(s)
- Xiangwei Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Rongdi Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
| | - Wenbo Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Xiao Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Jin Zheng
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Ling Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Zhanpeng Zhou
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Fanqi Yi
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Yaocheng Deng
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China.
| | - Daoxin Gong
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China.
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Liu Y, Tong W, Zhuang J, Zhang Y. All-Organic Piezo-Photocatalytic Film with Highly Efficient Catalysis, Weak-Force Excitation, and Recyclability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402521. [PMID: 39007284 DOI: 10.1002/smll.202402521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/17/2024] [Indexed: 07/16/2024]
Abstract
Polyaniline (PANI), a typical organic photocatalyst, has an adjustable structure and good stability, can be easily synthesized on a large scale, and is economical. PANI is doped with ions to regulate its internal structure and improve its photocatalytic performance. However, its photocatalytic performance is limited by the doping concentration and its intrinsic properties, hindering its further application. Herein, PANI films with a piezo-photocatalytic function are fabricated to improve photocatalytic performance and explore their self-powered environmental purification property. PANI/poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) sandwich films, with PVDF-HFP as the interlayer, are prepared by introducing a piezoelectric field into PANI photocatalysts, thereby achieving excellent piezo-photocatalytic performance. The as-fabricated piezo-photocatalyst degrades methyl orange at a rate of 91.2% after 60 min under magnetic stirring. Owing to the low Young's modulus of the all-organic catalyst, self-powered purification is realized using the PANI/PVDF-HFP film. Leaf surfaces are functionalized by loading the film in them for removing pollutants under sunlight and water flow. Thus, this study proposes a common strategy, wherein a piezoelectric interlayer is introduced to load the organic photocatalyst for preparing an all-organic piezo-photocatalyst. This piezo-photocatalyst can be easily recycled and responds to weak forces, realizing its application for self-powered environmental purification.
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Affiliation(s)
- Ya Liu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Wangshu Tong
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Jialin Zhuang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Yihe Zhang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
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7
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Liu Z, Jiang B, Sun Z. Mechanism of self-supporting montmorillonite composite material for bio-enhanced degradation of chlorotetracycline: Electron transfer and microbial response. BIORESOURCE TECHNOLOGY 2024; 404:130928. [PMID: 38838830 DOI: 10.1016/j.biortech.2024.130928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/27/2024] [Accepted: 06/02/2024] [Indexed: 06/07/2024]
Abstract
The efficient degradation of antibiotics holds significant implications for mitigating environmental pollution. This study synthesized a montmorillonite chitosan composite material (MMT-CS) using the gel template method. Subsequently, a bio-enhanced reactor was constructed to facilitate the degradation of chlorotetracycline (CTC). The addition of MMT-CS composite material enables the degradation of different concentrations of CTC. MMT-CS, a conductive carrier, effectively promotes microbial adhesion and boosts the metabolic activity of functional microorganisms. Additionally, it facilitates the maintenance of microbial activity under CTC pressure by promoting the secretion of extracellular polymeric substances, increasing critical enzyme activity, and enhancing the electron transfer capacity within the system. In this MMT-CS bio-enhanced process, Paracoccus (11.4%) and Bacillus (3.9%) are utilized as essential bacteria genes. The results of metabolic pathways prediction indicated significant enhancements in membrane-transport, nucleotide-metabolism, replication-repair, and lipid-metabolism. Thus, the developed self-supporting MMT-CS bio-enhanced process ensured the stability of the system during the removal of antibiotics.
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Affiliation(s)
- Zhibin Liu
- Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Bingyu Jiang
- Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Zhirong Sun
- Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China.
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Tang X, Tang R, Deng Y, Li X, Li L, Zhou Z, Li W, Yuan M, Xie R, Gong D. Electric field driven tourmaline/hematite dual mineral photocatalysis for efficient antibiotic removal. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124135. [PMID: 38734056 DOI: 10.1016/j.envpol.2024.124135] [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: 01/24/2024] [Revised: 04/20/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Hematite (Fe2O3) has garnered attention due to its stability, economic viability, and non-toxic nature. However, the rapid recombination of charge carriers hampers its practical application. On the other hand, tourmaline's inherent surface electric field facilitates the rapid separation of photogenerated electrons and holes. In this study, two directly mined natural minerals, tourmaline and hematite (TFO), were successfully combined. Characterization and experiments indicate that the pronounced enhancement of photocatalytic activity in Fe2O3 is attributed to the electric field effect on the surface of tourmaline. TFO successfully removes 93% of tetracycline (TC, 50 ppm) within 60 min. The reaction rate constant for TFO composite material (0.0410 min-1) is 8.5 times that of tourmaline (0.0048 min-1) and 14.1 times that of hematite (0.0029 min-1). Simultaneously, it markedly improves light absorption and charge carrier separation capabilities. Through simulations of various natural environmental factors, TFO demonstrates excellent practicality. Analyzing and detecting active species revealed the involvement of four types of active species, with ·OH radicals making the most significant contribution. The photocatalytic mechanism was proposed. Furthermore, the degradation pathway of tetracycline and the toxicity of its metabolites were investigated. This work provides additional inspirations and insights for photocatalytic materials performance enhancement and natural resources green governance environment.
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Affiliation(s)
- Xiangwei Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Rongdi Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Yaocheng Deng
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Xiao Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Ling Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Zhanpeng Zhou
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Wenbo Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Meng Yuan
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Rucheng Xie
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Daoxin Gong
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China.
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9
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Xie W, Yu Z, Huang H, Jiang R, Yao S, Huang J, Hou Y, Yin S, Mo R, Wu C. Anthraquinone-based polymer modified BiVO 4 photoanode with strong electron-withdrawing functional groups for boasting photoelectrochemical water oxidation. J Colloid Interface Sci 2024; 665:977-987. [PMID: 38574586 DOI: 10.1016/j.jcis.2024.03.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/22/2024] [Accepted: 03/24/2024] [Indexed: 04/06/2024]
Abstract
The photoelectrochemical (PEC) performance ofBiVO4 is limited by sluggish water oxidation kinetics and severe carrier recombination. Herein, a novel high-performance BiVO4/NiFe-NOAQ photoanode is prepared by a simple one-step hydrothermal method, using BiVO4 and 1-Nitroanthraquinone (NOAQ) as raw materials. The BiVO4/NiFe-NOAQ photoanode has an excellent photocurrent density of 5.675 mA cm-2 at 1.23 VRHE, which is 3.35 times higher than that of the pure BiVO4 (1.693 mA cm-2) photoanode. The BiVO4/NiFe-NOAQ shows a significant improvement in charge separation efficiency (86.12 %) and charge injection efficiency (87.86 %). The improvement is ascribable to the NiFe-NOAQ form a type II heterojunction with BiVO4 to inhibit carrier recombination. More importantly, the kinetic isotope experiment suggests that the proton-coupled electron transfer (PCET) process can enhance the charge transfer of BiVO4/NiFe-NOAQ. The contact angle measurements show that modifying functional groups enhanced the hydrophilicity of BiVO4/NiFe-NOAQ, which can further accelerate the PCET process. The XPS and PL results as well as the tauc plot indicate that the strong electron-withdrawing ability of -NO2 which can promote the extension of π conjugation, results in more π electron delocalization and produces more efficient active sites, thus achieving efficient photoelectrochemical water oxidation.
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Affiliation(s)
- Wenhui Xie
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China; Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning 530004, PR China
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning 530004, PR China.
| | - Hongcheng Huang
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Ronghua Jiang
- School of Chemical and Environmental Engineering, Shaoguan University, Shaoguan 512005, PR China
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China.
| | - Jun Huang
- School of Civil Engineering and Architecture, Guangxi Minzu University, Nanning 530004, PR China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Shibin Yin
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning 530004, PR China
| | - Rongli Mo
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Cheng Wu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
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10
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Sun M, Xie Y, Huang J, Liu C, Dong Y, Li S, Zeng C. Oxygen-deficient AgIO 3 for efficiently photodegrading organic contaminants under natural sunlight. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 363:121393. [PMID: 38850920 DOI: 10.1016/j.jenvman.2024.121393] [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: 01/11/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Defect engineering is regarded as an effective strategy to boost the photo-activity of photocatalysts for organic contaminants removal. In this work, abundant surface oxygen vacancies (Ov) are created on AgIO3 microsheets (AgIO3-OV) by a facile and controllable hydrogen chemical reduction approach. The introduction of surface Ov on AgIO3 broadens the photo-absorption region from ultraviolet to visible light, accelerates the photoinduced charges separation and migration, and also activates the formation of superoxide radicals (•O2-). The AgIO3-OV possesses an outstanding degradation rate constant of 0.035 min-1, for photocatalytic degrading methyl orange (MO) under illumination of natural sunlight with a light intensity is 50 mW/cm2, which is 7 and 3.5 times that of the pristine AgIO3 and C-AgIO3 (AgIO3 is calcined in air without generating Ov). In addition, the AgIO3-OV also exhibit considerable photoactivity for degrading other diverse organic contaminants, including azo dye (rhodamine B (RhB)), antibiotics (sulflsoxazole (SOX), norfloxacin (NOR), chlortetracycline hydrochloride (CTC), tetracycline hydrochloride (TC) and ofloxacin (OFX)), and even the mixture of organic contaminants (MO-RhB and CTC-OFX). After natural sunlight illumination for 50 min, 41.4% of total organic carbon (TOC) for MO-RhB mixed solution can be decreased over AgIO3-OV. In a broad range of solution pH from 3 to 11 or diverse water bodies of MO solution, AgIO3-OV exhibits attractive activity for decomposing MO. The MO photo-degradation process and mechanism over AgIO3-OV under natural sunlight irradiation has been systemically investigated and proposed. The toxicities of MO and its degradation intermediates over AgIO3-OV are compared using Toxicity Estimation Software (T.E.S.T.). Moreover, the non-toxicity of both AgIO3-OV catalyst and treated antibiotic solution (CTC-OFX mixture) are confirmed by E. coli DH5a cultivation test, supporting the feasibility of AgIO3-OV catalyst to treat organic contaminants in real water under natural sunlight illumination.
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Affiliation(s)
- Miaofei Sun
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Yunchang Xie
- College of Life Sciences, Jiangxi Normal University, Nanchang, 330022, China
| | - Jiayang Huang
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Chengyin Liu
- School of Environmental and Material Engineering, Yantai University, Yantai, 264005, China
| | - Yujing Dong
- School of Science and Technology, Xinyang College, Xinyang, 464000, China.
| | - Shijie Li
- National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Chao Zeng
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
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11
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Ma R, Sun Y, Zhang H, Zhu J, Tian H, Guo X, Wang R, Cui X, Hou X, An S. Intense interaction between biochar/g-C 3N 4 promotes the photocatalytic performance of heterojunction catalysts. RSC Adv 2024; 14:19707-19717. [PMID: 38903670 PMCID: PMC11188670 DOI: 10.1039/d4ra03232b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 06/04/2024] [Indexed: 06/22/2024] Open
Abstract
In recent decades, environmental protection and energy issues have gained significant attention, and the development of efficient, environmentally friendly catalysts has become especially crucial for the advancement of photocatalytic technology. This study employs the sintering method to produce biochar. A hybrid photocatalyst for the degradation of RHB under visible light was prepared by loading varying proportions of biochar onto g-C3N4 using ultrasonic technology. Among them, 2% CGCD (2% biochar/g-C3N4) achieved a degradation rate of 91.3% for RHB after 30 minutes of visible light exposure, which was more than 25% higher than GCD (g-C3N4), and exhibited a higher photocurrent intensity and lower impedance value. The enhancement in photocatalytic activity is primarily attributed to the increased utilization efficiency of visible light and the electron transfer channel effect from a minor amount of biochar, effectively reducing the recombination of photo-generated charge carriers on the g-C3N4 surface, thereby significantly improving photocatalytic activity. The degradation of RHB is synergistically mediated by O2 -, h+ (photo-generated holes), and ˙OH. The free radical capture experiment indicates that O2 - and ˙OH are the primary active components, followed by h+.
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Affiliation(s)
- Rundong Ma
- Shanghai institute of Ceramics, Chinese Academy of Sciences Shanghai China
- Beijing University of Science and Technology, Carbon Neutrality Institute Beijing China
| | - Yihui Sun
- School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou China
| | - Hui Zhang
- School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou China
| | - Jie Zhu
- School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou China
| | - Han Tian
- Shanghai institute of Ceramics, Chinese Academy of Sciences Shanghai China
| | - Xiong Guo
- School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou China
| | - Ruifen Wang
- School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou China
| | - Xiangzhi Cui
- Shanghai institute of Ceramics, Chinese Academy of Sciences Shanghai China
| | - Xinmei Hou
- Beijing University of Science and Technology, Carbon Neutrality Institute Beijing China
| | - Shengli An
- School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou China
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12
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Tang Q, Zhu F, Li Y, Yin S, Xu Y, Yan H, Kang M, Chang G. Demonstration of π-π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO 2@IN. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8685-8693. [PMID: 38595052 DOI: 10.1021/acs.langmuir.4c00504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
In the present study, a novel silane coupling agent, designated INSi, was synthesized via a facile synthetic route, incorporating indole-functional moieties. This agent was further employed for the surface modification of homemade silica nanomicrospheres (SMPs). The ensuing nanomicrosphere composite, denoted as SiO2@IN, exemplified pronounced interfacial π-π interactions. Optimization of the reaction conditions was conducted using the response surface optimization technique. Subsequent validation of interfacial π-π interactions was accomplished through a synergistic approach, integrating theoretical calculations and comprehensive analyses of spectral and morphological attributes exhibited by the SiO2@IN.
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Affiliation(s)
- Qiaolin Tang
- State Key Laboratory of Environment-friendly Energy Materials & School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Feng Zhu
- State Key Laboratory of Environment-friendly Energy Materials & School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Yanqi Li
- State Key Laboratory of Environment-friendly Energy Materials & School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Sijie Yin
- State Key Laboratory of Environment-friendly Energy Materials & School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Yunbo Xu
- Sichuan Shutai Chemical Technology Co., Ltd, Suining 629399, PR China
| | - Huicheng Yan
- Sichuan Shutai Chemical Technology Co., Ltd, Suining 629399, PR China
| | - Ming Kang
- State Key Laboratory of Environment-friendly Energy Materials & School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Guanjun Chang
- State Key Laboratory of Environment-friendly Energy Materials & School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China
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13
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Xiao X, He X, Ji C, Li L, Zhou M, Yin X, Shan Y, Wang M, Zhao Y. Activation of persulfate by g-C 3N 4/nZVI@SBC for degradation of total petroleum hydrocarbon in groundwater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120612. [PMID: 38537465 DOI: 10.1016/j.jenvman.2024.120612] [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: 11/04/2023] [Revised: 03/02/2024] [Accepted: 03/10/2024] [Indexed: 04/07/2024]
Abstract
In this study, we synthesized a high removal efficiency catalyst using biochar-supported nanoscale zero-valent iron and g-C3N4, denoted as g-C3N4/nZVI@SBC, to activate persulfate (PS) for the degradation of total petroleum hydrocarbon (TPH) in groundwater. We characterized the morphology and physiochemical properties of g-C3N4/nZVI@SBC with scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), BET surface area analysis, and X-ray photoelectron spectroscopy (XPS). To assess the performance of the g-C3N4/nZVI@SBC catalyst, we investigated various reaction parameters, such as the mass ratio of g-C3N4 to nZVI@SBC, PS concentration, initial pH, initial TPH concentration, and the presence of coexisting ions in the system. The results from batch experiments and repeated use trials indicate that g-C3N4/nZVI@SBC exhibited both excellent catalytic activation capability and impressive durability, making it a promising choice for TPH degradation. Specifically, when the PS concentration reached 1 mM, the catalyst dosage was 0.3 g/L, and the g-C3N4 to nZVI@SBC mass ratio was 2, we achieved a remarkable TPH removal efficiency of 93.8%. Through electron paramagnetic resonance (EPR) testing and quenching experiments, we identified sulfate radicals, hydroxyl radicals, and superoxide radicals as the primary active substance involved in the TPH degradation process. Moreover, the g-C3N4/nZVI@SBC composite proved highly effective for in-situ TPH removal from groundwater and displayed an 86% removal rate, making it a valuable candidate for applications in permeable reactive barriers (PRB) aimed at enhancing environmental remediation. In summary, by skillfully utilizing g-C3N4/nZVI@SBC, this study has made notable advancements in synthesis and characterization, presenting a feasible and innovative approach to addressing TPH pollution in groundwater.
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Affiliation(s)
- Xian Xiao
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Xingguo He
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Caiya Ji
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Liangzhong Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Center for Environmental Health Research, South China Institute of Environmental Sciences, The Ministry of Ecological and Environment of China, Guangzhou, 510655, China
| | - Meichun Zhou
- Jiangsu Zhongwu Environmental Protection Industry Development Co., Ltd., Changzhou, 213164, China
| | - Xinyu Yin
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Yong Shan
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Mingyu Wang
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Yuan Zhao
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China.
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14
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Zeng H, Zhou Z, Li W, Li L, Tang R, Xiong S, Gong D, Huang Y, Bai L, Deng Y. Revealing the synergistic effect between radical and non-radical species of sulfur-doped carbon nitride for ciprofloxacin removal: Based on density functional theory study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:170191. [PMID: 38244633 DOI: 10.1016/j.scitotenv.2024.170191] [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: 11/21/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 01/22/2024]
Abstract
The distinct characteristics of active species produced during the photocatalytic reaction can result in alterations in the degradation routes of organic pollutants with diverse chemical structures. The relationship between the active species and degradation pathways of organic pollutants lacks a direct experimental or characterization method, so in-depth research is still needed to understand the details of their interactions. In this study, sulfur-doped bulk carbon nitride (SBCN) was prepared based on bulk carbon nitride (BCN), and the process of S-doping enhancing the production of O21 was revealed. Through the degradation experiment, the degradation rate of CIP by SBCN reached 91 %, which was higher than that of BCN (66 %). The increase of degradation rate was mainly attributed to the increase of O21. Through the density functional theory (DFT) calculation of CIP and its degradation intermediate, due to the preferential oxidation of CIP by O21, O21 changes the initial degradation direction of CIP, releasing more attack sites for ˙O2-, thereby achieving more efficient degradation of CIP through the synergy of O21 and ˙O2-. In this study, the attack preferences of the active species and their synergistic promotion provide important insights for the efficient photocatalytic degradation of organic pollutants.
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Affiliation(s)
- Hao Zeng
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Zhanpeng Zhou
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Wenbo Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Ling Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Rongdi Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Sheng Xiong
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Daoxin Gong
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Ying Huang
- College of Resources, Hunan Agricultural University, Changsha 410128, China
| | - Lianyang Bai
- Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Yaocheng Deng
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China.
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15
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Hashemzadeh F, Khoshmardan ME, Sanaei D, Ghalhari MR, Sharifan H, Inglezakis VJ, Arcibar-Orozco JA, Shaikh WA, Khan E, Biswas JK. Adsorptive removal of anthracene from water by biochar derived amphiphilic carbon dots decorated with chitosan. CHEMOSPHERE 2024; 352:141248. [PMID: 38280643 DOI: 10.1016/j.chemosphere.2024.141248] [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: 06/13/2023] [Revised: 12/23/2023] [Accepted: 01/16/2024] [Indexed: 01/29/2024]
Abstract
Anthracene belongs to the polycyclic aromatic hydrocarbon (PAH) consisting of benzene rings, unusually highly stable through more π-electrons and localized π-bond in entire rings. Aqueous-phase anthracene adsorption using carbon-based materials such as biochar is ineffective. In this paper, carbon dots (CDs) derived from the acid treatment of coconut shell biochar (CDs/MCSB) decorated with chitosan (CS) are successfully synthesized and applied for anthracene removal from aqueous solutions. The h-CDs/MCSB exhibited fast adsorption of anthracene with significant sorption capacity (Qmax = 49.26 mg g-1) with 95 % removal efficiency at 60 min. The study suggested chemisorption dominated monolayer anthracene adsorption onto h-CDs/MCSB, where a significant role was played by ion-exchange. Density Functional Theory (DFT) suggested the anthracene adsorption was dominated by the electrostatic interactions and delocalized electron, induced by higher polarizability of functional groups on the surface of hybrid CDs/MCSB assisted by chitosan (h-CDs/MCSB). In addition, the aromatic structure of CDs/MCSB and high polarizability of functional groups provided the strong interactions between benzene rings of anthracene and hybrid adsorbent-assisted multiple π-bond through delocalized π-bond and polarization-induced H-bond interactions. The presence of carboxylic and sulfonic groups on the CDs/MCSB surface also contributed to the effective adsorption of anthracene was confirmed by the fluorescence spectra. The results showed that the hybrid adsorbent was an effective material for removing PAHs, usually difficult to remove from water owing to the presence of benzene rings in their structures. Further, consistency in the DFT results suggested the outstanding binding capacity with the anthracene molecules with h-CDs/MCSB.
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Affiliation(s)
- Farzad Hashemzadeh
- Water and Wastewater Research Center, Water Research Institute, Tehran, Iran
| | - Maede Esmaeili Khoshmardan
- Department of Environmental Health Engineering, Faculty of Public Health and Safety, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Daryoush Sanaei
- Department of Environmental Health Engineering, Faculty of Public Health and Safety, Shahid Beheshti University of Medical Science, Tehran, Iran.
| | | | - Hamidreza Sharifan
- Department of Chemistry and Biochemistry, University of Texas at El Paso, Texas, USA
| | | | - Javier A Arcibar-Orozco
- Research Department, CIATEC A.C. Centro de Innovación Aplicada en Tecnologías Competitivas, León, Mexico
| | - Wasim Akram Shaikh
- Department of Basic Sciences, School of Science and Technology, The Neotia University, Sarisha, South 24 Parganas, West Bengal, India, 743368
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada, Las Vegas, Las Vegas, NV 89154-4015, USA
| | - Jayanta Kumar Biswas
- Enviromicrobiology, Ecotoxicology and Ecotechnology Research Laboratory (3E-MicroToxTech Lab), International Centre for Ecological Engineering, Department of Ecological Studies, University of Kalyani, Kalyani, Nadia, West Bengal - 741235, India.
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16
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Qin Y, Wang S, Zhang B, Chen W, An M, Yang Z, Gao H, Qin S. Zinc and sulfur functionalized biochar as a peroxydisulfate activator via deferred ultraviolet irradiation for tetracycline removal. RSC Adv 2024; 14:5648-5664. [PMID: 38352677 PMCID: PMC10863648 DOI: 10.1039/d3ra07923f] [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: 11/19/2023] [Accepted: 01/23/2024] [Indexed: 02/16/2024] Open
Abstract
To enhance the degradation of tetracycline class (TC) residuals of high-concentration from pharmaceutical wastewater, a novel zinc (Zn) and sulfur (S) functionalized biochar (SC-Zn), as a peroxydisulfate (PDS) activator, was prepared by two-step pyrolysis using ZnSO4 accumulated water-hyacinth. Results showed that the removal rate of 50, 150, and 250 mg per L TC reached 100%, 99.22% and 94.83% respectively, by the SC-Zn/PDS system at a dosage of 0.3 g per L SC-Zn and 1.2 mM PDS, via the deferred ultraviolet (UV) irradiation design. Such excellent performance for TC removal was due to the synergetic activation of PDS by the biochar activator and UV-irradiation with biochar as a responsive photocatalyst. The functionalization of the co-doped Zn and S endowed the biochar SC-Zn with a significantly enhanced catalytic performance, since Zn was inferred to be the dominant catalytic site for SO4˙- generation, while S played a key role in the synergism with Zn by acting as the primary adsorption site for the reaction substrates. The employed SC-Zn/PDS/UV system had excellent anti-interference under different environmental backgrounds, and compared with the removal rate of TC by adsorption of SC-Zn, the increasing rate in the SC-Zn/PDS/UV system (18.75%) was higher than the sum of the increases in the SC-Zn/PDS (9.87%) and SC-Zn/UV systems (3.34%), furtherly verifying the systematic superiority of this synergy effect. This study aimed to prepare a high-performance functionalized biochar activator and elucidate the rational design of deferred UV-irradiation of PDS activation to efficiently remove high-concentration antibiotic pollutants.
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Affiliation(s)
- Yixue Qin
- College of Materials and Metallurgy, Guizhou University Guiyang 550025 China
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
| | - Sheng Wang
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
| | - Bingbing Zhang
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
- Resources and Environmental Engineering Department, Guizhou University Guiyang 550025 China
| | - Weijie Chen
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
- Resources and Environmental Engineering Department, Guizhou University Guiyang 550025 China
| | - Mingze An
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
| | - Zhao Yang
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
| | - Hairong Gao
- College of Materials and Metallurgy, Guizhou University Guiyang 550025 China
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
| | - Shuhao Qin
- College of Materials and Metallurgy, Guizhou University Guiyang 550025 China
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 China
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17
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Bai Y, Hao D, Feng S, Lu L, Wang Q. A magnetically reusable Ce-MOF/GO/Fe 3O 4 composite for effective photocatalytic degradation of chlortetracycline. Phys Chem Chem Phys 2024; 26:3832-3841. [PMID: 38221795 DOI: 10.1039/d3cp04499h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Herein, we report a novel 1/GO/Fe3O4 photocatalyst, comprising Ce(BTB)(H2O) (MOF-1, H3BTB = 1,3,5-benzenetrisbenzoic acid), graphene oxide (GO), and iron oxide (Fe3O4) for photocatalytic degradation of chlortetracycline (CTC). This design enables the effective transfer of electrons from the MOF to GO, thereby reducing the photoelectron-hole recombination rate. Therefore, the optimized 1/GO/Fe3O4 photocatalyst with H2O2 shows the highest photocatalytic activity toward CTC. The kinetic constant is 5.4 times that in the system of MOF-1 and hydrogen peroxide, which usually acted as efficient electron acceptors to improve the photocatalytic performance of MOFs. More importantly, light absorption is extended from the ultraviolet to the visible region. Furthermore, 1/GO/Fe3O4 can be quickly recycled under an applied magnetic field and displays outstanding stability and reusability. According to the radical trapping experiments and electron paramagnetic resonance results, hydroxyl radicals, superoxide radicals, and holes all contribute to excellent photocatalytic activity. The possible catalytic mechanism of 1/GO/Fe3O4 is tentatively proposed. This work aims to explore the synergistic effect between metal-organic frameworks (MOFs) and GO, and provide a theoretical basis for MOF-based composites to remove antibiotic contaminants in the environment.
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Affiliation(s)
- Yuting Bai
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, P. R. China.
- Department of Energy Chemistry and Materials Engineering, Shanxi Institute of Energy, Jinzhong, Shanxi, 030600, China
| | - Derek Hao
- Centre for Technology in Water and Wastewater (CTWW), School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Sydney, NSW 2007, Australia
| | - Sisi Feng
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, P. R. China.
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan, Shanxi, 030006, P. R. China.
| | - Liping Lu
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, P. R. China.
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China.
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18
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Xie W, Wang M, Huang H, Yu Z, Jiang R, Yao S, Huang J, Hou Y, Fan B. NiFe MOF modified BiVO 4 photoanode with strong π-π conjugation enhances built-in electric field for boasting photoelectrochemical water oxidation. J Colloid Interface Sci 2024; 654:1492-1503. [PMID: 37923693 DOI: 10.1016/j.jcis.2023.10.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/07/2023]
Abstract
The photoelectrochemical (PEC) performance ofBiVO4 is limited by sluggish kinetics and poor stability. In this work, a novel high-performance BiVO4/NiFe MOF(BPDC) photoanode is constructed by loading NiFe MOF with biphenyl-4,4'-dicarboxylic acid (BPDC) as an organic ligand on BiVO4 by a simple one-step hydrothermal method. The XPS, OCP, UPS, and KPFM show that the enhanced π-π conjugation effect causes more electrons transfer from the BiVO4 to the MOFs and affects the magnitude of the work function, leading to a strong built-in electric field to drive carrier separation and migration. Therefore, the BiVO4/NiFe MOF(BPDC) has a strong hole extraction and carrier separation capability to enhance photoelectrochemical water oxidation and improve photostability. The BiVO4/NiFe MOF(BPDC) photoanode has an enhanced photocurrent density of 4.16 mA cm-2 at 1.23 VRHE, which is 4.33 times higher than that of the pure BiVO4 (0.96 mA cm-2) photoanode with a negative shift of 376 mV in the onset potential plot, exhibiting excellent photostability of 7 h at 1.23 VRHE. This work demonstrates that the composite photoanodes constructed by BiVO4 and the MOFs with strong π-π conjugation are promising, which provides an effective strategy for the preparation of efficient and stable photoanodes.
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Affiliation(s)
- Wenhui Xie
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China
| | - Mi Wang
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Hongcheng Huang
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China.
| | - Ronghua Jiang
- School of Chemical and Environmental Engineering, Shaoguan University, Shaoguan 512005, PR China
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China
| | - Jun Huang
- School of Civil Engineering and Architecture, Guangxi Minzu University, Nanning 530004, PR China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Ben Fan
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
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19
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Sun N, Wang T, Qi B, Yu S, Yao Z, Zhu G, Fu Q, Li C. Inhibiting release of phenanthrene from rice-crab coculture sediments to overlying water with rice stalk biochar: Performance and mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168385. [PMID: 37952670 DOI: 10.1016/j.scitotenv.2023.168385] [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: 08/10/2023] [Revised: 11/04/2023] [Accepted: 11/05/2023] [Indexed: 11/14/2023]
Abstract
Rice crab coculture is a new ecological agriculture model combining rice cultivation and crab farming. Current research related to rice crab coculture only focuses on production theory and technical system establishment, while ignoring the potential ecological risk of Polycyclic aromatic hydrocarbon(PAHs) in rice crab coculture sediment. In this study, rice straw was used to make rice straw biochar to explore the performance and mechanism of inhibiting release of phenanthrene(PHE) from rice-crab coculture sediments to overlying water with rice stalk biochar. The kinetic and isotherm adsorption data were best represented by the Langmuir model and pseudo-second-order model with a maximum adsorption capacity of 53.35 mg/g at 12 h contact time. The results showed that PHE was released from the rice-crab substrate to the overlying water in dissolved and particle forms as a result of bioturbation, and the PHE concentrations in dissolved and particle forms were 20.9 μg/L and 14.22 μg/L, respectively. This leads to secondary ecological risks in rice-crab co-culture systems. This is related to dissolved organic carbon(DOC) carrying the dissolved PHE and total suspended solids(TSS) carrying the particle PHE in the overlying water. Due to its large specific surface area, rice straw biochar is rich in functional groups, providing multiple hydrophobic adsorption sites. After adding rice straw biochar at 0.5 % w/w (dry weight) dose, the removal efficiency of dissolved and particulate PHE in the overlying water were 78.99 % and 42.11 %, respectively. Rice straw biochar is more competitively adsorbed PHE in the overlying water than TSS and DOC. The removal efficiency of PHE from the sediment was 52.75 %. This study confirmed that rice stalk biochar could effectively inhibit PHE migration and release in paddy sediment. It provides an environment- friendly in situ remediation method for the management of PAHs pollution from crab crops in rice fields.
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Affiliation(s)
- Nan Sun
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Heilongjiang Academy of Environmental Sciences Postdoctoral Joint Scientific Research Station, Harbin 150030, China
| | - Tianyi Wang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Bowei Qi
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Shijie Yu
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Smart Home Business Group, Midea Group, Wuxi 214000, China
| | - Zhongbao Yao
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Guanglei Zhu
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qiang Fu
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China.
| | - Chenyang Li
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Research Center for Ecological Agriculture and Soil-Water Environment Restoration, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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20
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Jiang Z, Wei J, Niu X, Cui X, Li Y, Cui N, Li J, Huo J, Wang L, Ji W, Li J. Highly dispersed Fe 7S 8 anchored on sp 2/sp 3 hybridized carbon boosting peroxymonosulfate activation for enhanced EOCs elimination though singlet oxygen-dominated nonradical pathway. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132607. [PMID: 37757558 DOI: 10.1016/j.jhazmat.2023.132607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/03/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
The synergistic effect of carbon materials with high sp2/sp3 hybridized carbon ratio and metal materials can enhance the efficiency of peroxymonosulfate (PMS) based advanced oxidation processes. In this study, a composite of highly dispersed Fe7S8 anchored on sp2/sp3 hybridized carbon (Fe7S8@HC) was developed by a facile synthesis for PMS activation. Within 10 min, the removal efficiency of the target pollutant doxycycline (DOX) could reach ca. 96 % in optimal Fe7S8@HC/PMS system through a 1O2-dominated non-radical pathway. Correlation mechanism analysis revealed that thiophene S, sp2/sp3 ratio and Fe(II) were critical factors for elongating of the O-O bond of PMS. Moreover, the Fe7S8@HC/PMS system exhibited favorable adaptability to interference such as common inorganic anions, humic acid and pH changes and could effectively remove various organic pollutants with low ionization potential. Moreover, the system maintained high DOX removal efficiency by running 30 cycles in a continuous flow reactor. Finally, susceptible sites of DOX and four degradation pathways were proposed by density functional theory calculation and LC-MS detection. This work not only offered new insights into the design of high-performance catalysts combining metal and biomass-based carbon materials, but also provided technical support for the remediation of water bodies containing emerging organic contaminants.
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Affiliation(s)
- Zijian Jiang
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Jia Wei
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China.
| | - Xiruo Niu
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Xueru Cui
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Yanan Li
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Nan Cui
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Jiamei Li
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Jiangkai Huo
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Linhao Wang
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Wei Ji
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
| | - Jun Li
- College of Architecture Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, China
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21
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Liu H, Pan J, E K, Guan Y, Gou W, Wang P, Hussain S, Du Z, Ma C. Selective efficient photocatalytic degradation of antibiotics and direct Z-type migration pathway for hierarchical core-shell TiO 2/g-C 3N 4 composites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:4582-4594. [PMID: 38105324 DOI: 10.1007/s11356-023-31358-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023]
Abstract
Constructing superior Z-type photocatalytic heterojunction is beneficial to effectively enlarge interface contact, improve the photo-generated carrier separation rate, and retain the high redox ability. In this work, we designed a hierarchical core-shell g-C3N4/TiO2 structure to build Z-type heterojunction via combining simple template method and pyrolysis process. A close-knit Z-type heterojunction was constructed using TiO2 as a thick core and g-C3N4 as an ultra-thin shell. The effects of lamp source, wavelength, tetracycline (TC) concentration, and photocatalyst dose on the degradation performance on TC of g-C3N4/TiO2 were inspected. 0.1TiO2/g-C3N4 photocatalyst had the best degradation rate and highest removal rate within 30 min, and its degradation rate was about 49, 23, and 5 times than pure g-C3N4, TiO2, and commercial TiO2/g-C3N4 in respect. Moreover, compared with degradation ability under Xenon lamp, LED irradiation for g-C3N4/TiO2 composites showed a remarkable selective degradation. The fast and efficient Z-type transfer pathway of 0.1 g-C3N4/TiO2 was realized by forming an optimized interface and abundant surface active sites ascribed to the combined action of thick TiO2 core and ultra-thin g-C3N4 shell. In addition, the degradation intermediates were analyzed by LC-MS and suggested pathways of degradation. The work could provide novel design concept to obtain reliable Z-type photocatalysts with hierarchical core-shell structure applied in degradation of antibiotic wastewater.
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Affiliation(s)
- Hu Liu
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Jianmei Pan
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China.
| | - Keyu E
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Yi Guan
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Wenbo Gou
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Peng Wang
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Ze Du
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Chengfei Ma
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
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Bhattacharjee B, Hazarika B, Ahmaruzzaman M. Visible-light-driven photocatalytic degradation of Rose Bengal and Methylene Blue using low-cost sawdust derived SnO 2 QDs@g-C 3N 4/biochar nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:112591-112610. [PMID: 37837587 DOI: 10.1007/s11356-023-30297-y] [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: 06/20/2023] [Accepted: 10/02/2023] [Indexed: 10/16/2023]
Abstract
Conversion of carbon-rich waste biomass into valuable products is an environmentally sustainable method. This study accentuates the synthesis of novel SnO2 QDs@g-C3N4/biochar using low-cost sawdust by applying the pyrolysis method. Morphology, structure, and composition of the synthesized SnO2 QDs@g-C3N4/biochar nanocomposite were characterized using SEM (scanning electron microscope), TEM (transmission electron microscope), XRD (X-ray diffraction), XPS (X-ray photoelectron spectroscopy), FT-IR (infrared spectroscopy) and PL (photoluminescence) spectroscopy. The average diameter of the SnO2 QDs was measured from TEM and found to be 6.79 nm. Optical properties of the as-synthesized SnO2 QDs@g-C3N4/biochar were characterized using UV-visible spectroscopy. The direct band gap of synthesized SnO2 QDs@g-C3N4/biochar nanocomposite was calculated from Tauc's plot and found to be 2.0 eV. The fabricated SnO2 QDs@g-C3N4/biochar photocatalyst exhibited outstanding photocatalytic degradation efficiency for the removal of Rose Bengal (RB) and Methylene Blue (MB) dye through the Advanced Oxidation Process (AOP). The synthesized photocatalyst showed a degradation efficiency of 95.67% for the removal of RB under optimum conditions of 0.3 mL H2O2, photocatalyst dosage of only 0.06 gL-1, and 15 ppm initial RB concentration within 80 min, and 94.5% for the removal of MB dye with 0.5 mL of H2O2, 0.08 gL-1 of the fabricated photocatalyst and 6 ppm of initial MB concentration within 120 min. The photodegradation pathway followed the pseudo-first-order reaction kinetics with a rate constant of 0.00268 min-1 and 0.00163 min-1 for RB and MB respectively. The photocatalyst can be reused up to the 4th cycle with 80% efficiency.
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Affiliation(s)
- Baishali Bhattacharjee
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India
| | - Berileena Hazarika
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India
| | - Mohammed Ahmaruzzaman
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India.
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23
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An X, Xu X, Guo W, Chen Z, Miao Z, Yuan J, Wu Z. Bi-functional biochar-g-C 3N 4-MgO composites for simultaneously minimizing pollution:Photocatalytic degradation of pesticide and phosphorus recovery as slow-release fertilizer. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118489. [PMID: 37393880 DOI: 10.1016/j.jenvman.2023.118489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/08/2023] [Accepted: 06/21/2023] [Indexed: 07/04/2023]
Abstract
Significant progress has been made in the development of phosphorus recovery adsorbents and photocatalysts for degradation of pesticides. However, the bifunctional materials for phosphorus recovery and photocatalytic degradation of pesticides have not been designed, and the mechanism of the interaction between photocatalysis and P adsorption remains unexplored. Herein, we develop biochar-g-C3N4-MgO composites (BC-g-C3N4-MgO) with bi-function application to minimize water toxicity and eutrophication. The results show phosphorus adsorption capacity of the BC-g-C3N4-MgO composite reaches 111.0 mg·g-1, and its degradation ratio of dinotefuran reaches 80.1% within 260 min. The mechanism studies show that MgO can play variety roles in BC-g-C3N4-MgO composite, in which can improve the adsorption capacity of phosphorus, enhance the utilization efficiency of visible light and the separation efficiency of photoinduced electron-hole pairs. The biochar existed in BC-g-C3N4-MgO serves as charge transporter with a good conductivity, which promotes the fluent transfer of photo-generated charge carriers. The ESR indicates that both •O2- and •OH generated from BC-g-C3N4-MgO are responsible for dinotefuran degradation. Finally, pot experiments reveal that P laden BC-g-C3N4-MgO promotes the growth of pepper seedlings with high P utilization efficiency of 49.27%.
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Affiliation(s)
- Xiongfang An
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Xiaolin Xu
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Weijie Guo
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Zepu Chen
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Zhiyin Miao
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Jiayi Yuan
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Zhansheng Wu
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, PR China.
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24
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Xiao X, Ren Y, Lei Y, Li X, Guo H, Zhang C, Jiao Y. Jasmine waste derived biochar as green sulfate catalysts dominate non-free radical paths efficiently degraded tetracycline. CHEMOSPHERE 2023; 339:139610. [PMID: 37482311 DOI: 10.1016/j.chemosphere.2023.139610] [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: 05/19/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 07/25/2023]
Abstract
Because of the potential environmental harm caused by the extensive application of tetracycline (TC), this study used jasmine waste rich in organic matter as a precursor and one-step carbonization into metal-free carbon-based materials to efficiently activate peroxymonosulfate (PMS) toward degrading TC. The jasmine waste biochar (JWB) with a heating rate of 10 °C min-1 and a heating temperature of 700 °C was selected as the most suitable material based on its catalytic performance. The effects of catalyst dose, PMS dose, initial pH value, coexisting inorganic anions and TC concentration on the JWB/PMS/TC system were thoroughly optimized. The results showed that the degradation efficiency of TC by JWB/PMS system was 90%. Meanwhile, the combination of electron paramagnetic resonance, masking experiments and X-ray photoelectron spectrometry confirmed that JWB degraded TC mainly through the non-radical radical pathway of 1O2 oxidation and mediated the electron transfer to PMS. In addition, some degradation products were analyzed by LC-MS and possible degradation pathways of the system were proposed. Therefore, this paper proposes a novel method for recycling jasmine waste and providing a low-cost catalyst for the oxidation treatment of refractory organic matter.
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Affiliation(s)
- Xiuchan Xiao
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China; Centre of Big Data for Smart Environmental Protection, Chengdu Technological University, Chengdu, 611730, China.
| | - Yaqi Ren
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China; Centre of Big Data for Smart Environmental Protection, Chengdu Technological University, Chengdu, 611730, China
| | - Yan Lei
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Xi Li
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China; Centre of Big Data for Smart Environmental Protection, Chengdu Technological University, Chengdu, 611730, China
| | - Hongyang Guo
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Chunhong Zhang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Yi Jiao
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610064, Sichuan, China.
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25
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Tang X, Tang R, Zhou Z, Li L, Deng Y, Gong D, Yang L, Song T, He M. Facile design of surface electric field driven tourmaline/g-C 3N 4 layered stacked photocatalysts with enhanced photocatalytic activity for antibiotic removal. CHEMOSPHERE 2023:139185. [PMID: 37302491 DOI: 10.1016/j.chemosphere.2023.139185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/13/2023]
Abstract
In the field of photocatalysis, Graphitic carbon nitride (g-C3N4) has received a lot of attention for its superior functionality and benefits. However, it suffers from the fatal defect of low charge separation efficiency, which is well addressed by tourmaline's self-contained surface electric field. In this work, tourmaline/g-C3N4 (T/CN) composites were successfully synthesized. Due to its surface electric field effect, tourmaline and g-C3N4 are stacked on top of each other. It makes its specific surface area increase greatly and more active sites are exposed. Additionally, the rapid separation of photogenerated electron holes under the action of electric field promotes the photocatalytic reaction. T/CN exhibited excellent photocatalytic performance under visible light, with 99.9% Tetracycline (TC 50 mg L-1) removal after 30 min. Compared to tourmaline (0.0160 min-1) and g-C3N4 (0.0230 min-1), the T/CN composite's reaction rate constant (0.1754 min-1) was 11.0 and 7.6 times higher. A series of characterizations also determined the structural properties and catalytic performance of the T/CN composites, which were found to have a larger specific surface area, narrower band gap, and higher charge separation efficiency compared to the monomer. In addition, the toxicity of tetracycline intermediates and their degradative pathways were investigated, and the toxicity of the intermediates was found to be reduced. Given the quenching experiments and active substance determination, it was also found that h+ and ·O2- play a major role. This work provides more inspiration for photocatalytic material performance research as well as green innovation for environmental management.
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Affiliation(s)
- Xiangwei Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Rongdi Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China; College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
| | - Zhanpeng Zhou
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Ling Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Yaocheng Deng
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China.
| | - Daoxin Gong
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China.
| | - Lihua Yang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Tianwei Song
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Mingxuan He
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, China
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26
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Zhao F, Li X, Xiong T, Zuo M, Luo L, Qin P, Lei M, Liang Y, Gong X, Zou D, Wu Z. Photocatalytic degradation of tetracycline by N-CQDs modified S-g-C3N4 nanotubes and its product toxicity evaluation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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27
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Zhou P, Chen F, Su X, Zhang T, Meng S, Xie M, Song Y, Yan X, Xu Y. Ag2O modified magnetic BaFe12O19/C3N4 photocatalysts with enhanced antibiotic removal: Photocatalytic mechanism and toxicity evaluation. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2023.104015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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28
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Jiang X, Zhou Q, Lian Y. Efficient Photocatalytic Degradation of Tetracycline on the MnFe 2O 4/BGA Composite under Visible Light. Int J Mol Sci 2023; 24:ijms24119378. [PMID: 37298330 DOI: 10.3390/ijms24119378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/20/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
In this work, the MnFe2O4/BGA (boron-doped graphene aerogel) composite prepared via the solvothermal method is applied as a photocatalyst to the degradation of tetracycline in the presence of peroxymonosulfate. The composite's phase composition, morphology, valence state of elements, defect and pore structure were analyzed by XRD, SEM/TEM, XPS, Raman scattering and N2 adsorption-desorption isotherms, respectively. Under the radiation of visible light, the experimental parameters, including the ratio of BGA to MnFe2O4, the dosages of MnFe2O4/BGA and PMS, and the initial pH and tetracycline concentration were optimized in line with the degradation of tetracycline. Under the optimized conditions, the degradation rate of tetracycline reached 92.15% within 60 min, whereas the degradation rate constant on MnFe2O4/BGA remained 4.1 × 10-2 min-1, which was 1.93 and 1.56 times of those on BGA and MnFe2O4, respectively. The largely enhanced photocatalytic activity of the MnFe2O4/BGA composite over MnFe2O4 and BGA could be ascribed to the formation of type I heterojunction on the interfaces of BGA and MnFe2O4, which leads to the efficient transfer and separation of photogenerated charge carriers. Transient photocurrent response and electrochemical impedance spectroscopy tests offered solid support to this assumption. In line with the active species trapping experiments, SO4•- and O2•- radicals are confirmed to play crucial roles in the rapid and efficient degradation of tetracycline, and accordingly, a photodegradation mechanism for the degradation of tetracycline on MnFe2O4/BGA is proposed.
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Affiliation(s)
- Xiaoyu Jiang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Qin Zhou
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yongfu Lian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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Preetha R, Govinda Raj M, Vijayakumar E, Narendran MG, Neppolian B, Bosco AJ. "Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline". LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:7091-7108. [PMID: 37163322 DOI: 10.1021/acs.langmuir.3c00340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The efficient use of visible light is necessary to take advantage of photocatalytic processes in both indoor and outdoor circumstances. Precisely manipulating the in situ growth method of heterojunctions is an effective way to promote photogenerated charge separation. Herein, the SrFeO3@B-rGO catalyst was prepared by an in situ growth method. At a loading of 10 wt % B-rGO, the nanocomposites revealed an excellent morphology and thermal, optical, electrochemical, and mechanical properties. X-ray diffraction analysis revealed the cubic spinel structure and a space group of Pm̅3m for SrFeO3. High-resolution scanning electron microscopy and high-resolution transmission electron microscopy show the core-shell formation between SrFeO3 and B-rGO. Furthermore, density functional theory of SrFeO3 was performed to find its band structure and density of states. The SrFeO3@B-rGO nanocomposite shows the degradation rate of tetracycline (TC) reaching 92% in 75 min and the highest rate constant of 0.0211 min-1. To improve the catalytic removal rate of antibiotics, the efficiency of e- and h + separation must be improved, as well as the generation of additional radicals. Radical trapping tests and the electron paramagnetic resonance method indicated that the combination of Fe2+ and Fe3+ in SrFeO3 effectively separated e- and h+ while also promoting the development of the superoxide anion (•O2-) to accelerate TC degradation. The entire TC degradation pathway using high-performance liquid chromatography and its mechanism were discussed. As a whole, this study delineates that photocatalysis is a viable strategy for the treatment of environmental antibiotic wastewater.
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Affiliation(s)
- Rajaraman Preetha
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603 203 Tamil Nadu, India
| | - Muniyandi Govinda Raj
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603 203 Tamil Nadu, India
| | - Elayaperumal Vijayakumar
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603 203 Tamil Nadu, India
| | | | - Bernaurdshaw Neppolian
- Energy and Environmental Remediation Lab, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur 603 203 Tamil Nadu, India
| | - Aruljothy John Bosco
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603 203 Tamil Nadu, India
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Xu Z, Ju S, Gao P, Lin J, Niu Y, Meng F, Li S, Li F, Du J, Xu L, Peng H, Pan B. Fe xO 4-enhanced degradation of bisphenol A in visible light/peroxydisulfate system: production of singlet state oxygen. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:66303-66313. [PMID: 37097559 DOI: 10.1007/s11356-023-27141-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 04/17/2023] [Indexed: 05/17/2023]
Abstract
In this study, ferrous composites (FexO4) were prepared by microreactor to activate peroxydisulfate (PDS) for the degradation of bisphenol A (BPA) with visible (Vis) light irradiation. X-ray diffraction (XRD), energy-dispersive spectrometry (EDS), X-ray photoelectron spectroscopy (XPS), and scanning electron microscope (SEM) were used to characterize the morphology and crystal phase of FeXO4. Photoluminescence (PL) spectroscopy combined with amperometric tests were used to determine the role of PDS on the performance of photocatalytic reaction. The main reactive species and intermediates for BPA removal were determined by electron paramagnetic resonance (EPR) measurement and quenching experiments. The result indicated that singlet state oxygen (1O2) contributed more to the BPA degradation than that of other reactive radicals (·OH, SO4·- and ·O2-); these reactive radicals and 1O2 formed by the reaction between photo-generated electrons (e-) and holes (h+) of FexO4 and PDS. During this process, the consumption of e- and h+ also improved their separation efficiency and thus enhanced the degradation of BPA. In addition, the photocatalytic activity of FexO4 in Vis/FexO4/PDS system was 3.2-fold and 6.6-fold higher than that of single FexO4 and PDS under Vis light, respectively. The Fe2+/Fe3+ cycle could effectively drive the photocatalytic activation of PDS through indirect electron transfer and the formation of reactive radicals. This work illustrated that the degradation of BPA was rapidly in Vis/FexO4/PDS system mainly through 1O2, which further improve our understanding on the efficient removal of organic contaminants in the environment.
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Affiliation(s)
- Zhimin Xu
- Faculty of Modern Agricultural Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Shaohua Ju
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China
| | - Peng Gao
- City College, Kunming University of Science & Technology, Kunming, 650051, Yunnan, China
| | - Junjian Lin
- Faculty of Modern Agricultural Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Yifan Niu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China
| | - Fei Meng
- Faculty of Modern Agricultural Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Shunling Li
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Fangfang Li
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Jiahao Du
- Faculty of Modern Agricultural Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Li Xu
- Faculty of Modern Agricultural Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Hongbo Peng
- Faculty of Modern Agricultural Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China.
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China.
| | - Bo Pan
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
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Liu Z, Shan C, Wei G, Wen J, Jiang L, Hu G, Fang Z, Tang T, Li M. A Novel Non-Metallic Photocatalyst: Phosphorus-Doped Sulfur Quantum Dots. Molecules 2023; 28:molecules28083637. [PMID: 37110871 PMCID: PMC10141183 DOI: 10.3390/molecules28083637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
In this paper, a novel phosphorus-doped sulfur quantum dots (P-SQDs) material was prepared using a simple hydrothermal method. P-SQDs have a narrow particle size distribution as well as an excellent electron transfer rate and optical properties. Compositing P-SQDs with graphitic carbon nitride (g-C3N4) can be used for photocatalytic degradation of organic dyes under visible light. More active sites, a narrower band gap, and stronger photocurrent are obtained after introducing P-SQDs into g-C3N4, thus promoting its photocatalytic efficiency by as much as 3.9 times. The excellent photocatalytic activity and reusability of P-SQDs/g-C3N4 are prospective signs of its photocatalytic application under visible light.
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Affiliation(s)
- Ziyi Liu
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Chuanfu Shan
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Guiyu Wei
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Jianfeng Wen
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Li Jiang
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Guanghui Hu
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Zhijie Fang
- School of Electronics Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Tao Tang
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
| | - Ming Li
- College of Science & Key Laboratory of Low-Dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541004, China
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Zhu KA, Chen XJ, Yuan CW, Bai CW, Sun YJ, Zhang BB, Chen F. Orientated construction of visible-light-assisted peroxymonosulfate activation system for antibiotic removal: Significant enhancing effect of Cl . JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130476. [PMID: 36455327 DOI: 10.1016/j.jhazmat.2022.130476] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/14/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Antibiotic contaminants can migrate over long distances in the water, thus possibly causing severe detriment to the environment and even potential harm to human health. Heterogeneous activation of peroxymonosulfate (PMS) assisted by visible light is an emerging and promising technology for the purification of such wastewater. This study designed an ultra-efficient and stable PMS activator (FeCN) to restore the typical antibiotic-polluted water under harsh conditions. About 90.94% of sulfamethoxazole (SMX) was degraded in 35 min in the constructed FeCN+PMS/vis system, and the reaction rate constant was nearly 50-fold higher than direct photocatalysis. Electron spin resonance, quenching experiments, LC/MS technique, eco-toxicity assessment, and density functional theory validated that the SMX removal was dominated by the attack of h+, •O2- and 1O2 on the active atoms of SMX molecules with high Fukui index, presenting as a simultaneous degradation and detoxification process. Such a visible-light-assisted PMS activation system also had good resistance to the environmental water bodies and a broad spectrum in the degradation of various pollutants. In particular, Cl- (50 mM) could significantly accelerate the removal of SMX with a 32.6-fold increase in catalytic activity, and the mineralization efficiency could reach 56.6% under identical conditions. Moreover, this Cl- containing system excluded the degradation products of disinfection by-products, and such a system was also versatile for different contaminants. This work demonstrates the feasibility of the FeCN+PMS/vis system for the remediation of antibiotic-contaminated wastewater in the presence and absence of Cl-, and also highlights their great potential in WWTPs.
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Affiliation(s)
- Ke-An Zhu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Xin-Jia Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Chao-Wei Yuan
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Chang-Wei Bai
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Yi-Jiao Sun
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Bin-Bin Zhang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Fei Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China.
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Zhang H, Yu Y, Li Y, Lin L, Zhang C, Zhang W, Wang L, Niu L. A novel BC/g-C 3N 4 porous hydrogel carrier used in intimately coupled photocatalysis and biodegradation system for efficient removal of tetracycline hydrochloride in water. CHEMOSPHERE 2023; 317:137888. [PMID: 36657568 DOI: 10.1016/j.chemosphere.2023.137888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/05/2023] [Accepted: 01/14/2023] [Indexed: 06/17/2023]
Abstract
Intimately coupled photocatalysis and biodegradation (ICPB) is a promising technology to remove refractory contaminants from water. The key to successful ICPB is a carrier capable of accumulating biofilm and adhering photocatalyst firmly. Herein, BC/g-C3N4 was prepared into a three dimensional porous hydrogel and used as a carrier in ICPB system for the first time. Degradation experiments revealed that the removal rate of tetracycline hydrochloride (TCH) in water by the ICPB system was 96.0% after 10 h, which was significantly higher than that by the photocatalysis (PC, 76.3%), biodegradation (B, 32.5%), adsorption (AD, 17.2%), and photolysis (P, 5.0%) systems. Photo-electrochemical tests confirmed that ICPB system had superior electron transfer ability between photocatalysts and microorganisms. The removal efficiency of COD proved that microorganisms played an important role in the mineralization process of TCH by the ICPB system. After the ICPB degradation experiment, microorganisms maintained high activity and Pseudomonas, Burkholderiaceae and Flavobacterium which had TCH degradation or electron transport ability, were enriched. In conclusion, the novel ICPB carrier overcame shortcomings of the traditional ICPB carrier and the novel ICPB system had superior degradation performance for TCH. This study provided a possible method to promote the practical application of ICPB technology.
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Affiliation(s)
- Huanjun Zhang
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Yanan Yu
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China.
| | - Li Lin
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan, Hubei, 430010, PR China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan, Hubei, 430010, PR China.
| | - Chi Zhang
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Longfei Wang
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
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Chen Q, Gao M, Yu M, Zhang T, Wang J, Bi J, Dong F. Efficient photo-degradation of antibiotics by waste eggshells derived AgBr-CaCO3 heterostructure under visible light. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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35
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Wang M, Chen Y, Yu Z, Hou Y, Jiang R, Li S, Chen J, Tang W, Pang H, Xie W. Unraveling the π-interaction of NiFe-based metal-organic frameworks with enhanced oxygen evolution: Optimizing electronic structure and facilitating electron transfer modulation. J Colloid Interface Sci 2023; 640:1-14. [PMID: 36827844 DOI: 10.1016/j.jcis.2023.02.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/16/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023]
Abstract
Metal-organic frameworks (MOFs) with conjugation carboxylate ligands as electrocatalysts can significantly improve oxygen evolution reaction (OER), but the role of π-interaction on the reactive sites of OER is often neglected. We intend to unravel the mechanism of how π-interaction enhances OER performance. The results of Rietveld refinement, density functional theory (DFT) calculations, and in-situ Raman spectra show that π-interaction can efficiently modulate the local spin configuration of metal centers, facilitate γ-Ni1-xFexOOH active species with high-valence Ni sites modified by high-spin Fe, accelerate electron transfer, optimize the d-band center together with the beneficial rate-determining step of OER. NiFe-BPDC MOFs/NF with 0.8559 eV π-interaction energy generated γ-Ni1-xFexOOH in only 60 s at 1.4 V, demonstrating that π-interaction promotes the rapid generation of highly active reactive sites. Furthermore, the results of in-situ Raman and electron paramagnetic resonance (EPR) spectra reveal that the deprotonation and deoxygenation steps of OER are accompanied by changes in the oxidation state of metal ions and the generation of oxygen vacancies on the surface of catalysts. In addition, NiFe-BPDC MOFs/NF rapidly completes the deprotonation and deoxygenation steps, and it requires only 288 mV overpotential to reach 100 mA/cm2 with 100 h of stability, suggesting promising industrial application.
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Affiliation(s)
- Mi Wang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yushan Chen
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Zebin Yu
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Yanping Hou
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Ronghua Jiang
- School of Chemical and Environmental Engineering, Shaoguan University, Shaoguan 512005, China
| | - Shuang Li
- School of Environmental Science and Technology, Dalian University of Technology, Dalian 116023, China
| | - Jianhua Chen
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Wenjun Tang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Han Pang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Wenhui Xie
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
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Shang J, Zhang T, Li X, Luo Y, Feng D, Cheng X. Mn3O4-ZnMn2O4/SnO2 nanocomposite activated peroxymonosulfate for efficient degradation of ciprofloxacin in water. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Zheng J, Fan C, Li X, Yang Q, Wang D, Duan A, Pan S, Zhang B, Ding J, Rong S, Yin H. Effective mineralization and detoxification of tetracycline hydrochloride enabled by oxygen vacancies in g-C3N4/ LDH composites. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Liu Y, Wang X, Sun Q, Yuan M, Sun Z, Chen L, Zhang Y, Xia S, Zhao J. Enhanced activation of peroxymonosulfate by a floating FeMo 3O x/C 3N 4 photocatalyst under visible-light assistance for oxytetracycline degradation: Performance, mechanisms and comparison with H 2O 2 activation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120668. [PMID: 36400139 DOI: 10.1016/j.envpol.2022.120668] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/20/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
In this study, a floating FeMo3Ox/C3N4-EP (FM-C-P) composite with highly stability and reusability was synthesized by an impregnation/calcination process and used to activate peroxymonosulfate (PMS) for oxytetracycline (OTC) degradation under visible light irradiation. The results demonstrated that 98.1% of OTC (50 mg/L) removal can be achieved by the activation of PMS (5 mM) using FM-C-P (1 g/L) in 30 min under visible light irradiation. The pseudo-first-order rate constant was calculated to be 0.181 min-1. The degradation process with PMS was hardly affected by pH (3-11) and co-existing substance. ·SO4-, ·OH, ·O2- and 1O2 were produced in the Vis/PMS/FM-C-P system and 1O2 was determined to be the main reactive oxygen species (ROSs). The high efficiency of ROSs production mainly contributed to two mechanisms. Firstly, via the combination of ≡Fe (II)-·SO5- and free state ·SO5-, 1O2 could be generated on the Fe-Nx site. Secondly, photo-induced electrons in the FeMo3Ox/g-C3N4 heterojunction could react with Fe (III) and Mo (VI) to form catalytically active species Fe (II) and Mo (IV). Moreover, the proposed degradation pathway and the toxicity of intermediated products was analyzed. Overall, this study was expected to deepen the understanding of the photo-assisted PMS activation and the generation of 1O2 with the presence of metal-oxide/C3N4 heterojunction.
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Affiliation(s)
- Yiyang Liu
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Xuejiang Wang
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
| | - Qiunan Sun
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Meng Yuan
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Zhenhua Sun
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Liuyu Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Yanan Zhang
- College of Chemical Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Jianfu Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
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ZnO/Cu 2O/g-C 3N 4 heterojunctions with enhanced photocatalytic activity for removal of hazardous antibiotics. Heliyon 2022; 8:e12644. [PMID: 36643305 PMCID: PMC9834774 DOI: 10.1016/j.heliyon.2022.e12644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/27/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
In view of the environmental pollution caused by antibiotics, the creation of an efficient photocatalytic material is an effectual way to carry out water remediation. Herein, we developed a smart strategy to synthesize ZnO/Cu2O/g-C3N4 heterojunction photocatalysts for the photodegradation of hazardous antibiotics by one-pot synthesis method. In this system, the Cu2O nanoparticles with electrons reducing capacity were coupled with g-C3N4 composites. The photocarriers were generated from the electric field of type Ⅰ heterojunction between ZnO and g-C3N4 and type Ⅱ heterojunction between Cu2O and g-C3N4. ZnO as a co-catalyst was doped to Cu2O/g-C3N4 catalyst system for removal of broad-spectrum antibiotics with the condition of visible light to protect Cu2O from photocorrosion, which thereby accelerated photocatalytic reactivity. Benefiting by new p-n-n heterojunction, the resulting ZnO/Cu2O/g-C3N4 composites had an excellent degradation performance of broad-spectrum antibiotics such as tetracycline (TC), chlortetracycline (CTC), oxytetracycline (OTC) and ciprofloxacin (CIP), the degradation of which were 98.79%, 99.5%, 95.35% and 73.53%. In particular, ZnO/Cu2O/g-C3N4 photocatalysts showed a very high degradation rate of 98.79% for TC in first 30 min under visible light, which was 1.35 and 10.62 times higher than that of Cu2O/g-C3N4 and g-C3N4, respectively. This work gives a fresh visual aspect for simultaneously solving the instability deficiencies of traditional photocatalysts and improving photocatalytic performance.
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M.Asiri A, Raza A, Khuram Shahzad M, Fadhali MM, Bahadar Khan S, Ahmad Alamry K, Alfifi SY, Marwani HM. Insight into the activation of persulfate with ZrO2 modified S-doped g-C3N4 nanocomposite for degradation of tetracycline hydrochloride. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Zhang C, Wang Z, Li F, Wang J, Xu N, Jia Y, Gao S, Tian T, Shen W. Degradation of tetracycline by activated peroxodisulfate using CuFe2O4-loaded biochar. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ma R, Xue Y, Ma Q, Chen Y, Yuan S, Fan J. Recent Advances in Carbon-Based Materials for Adsorptive and Photocatalytic Antibiotic Removal. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12224045. [PMID: 36432330 PMCID: PMC9694191 DOI: 10.3390/nano12224045] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 05/14/2023]
Abstract
Antibiotics have been a primary environmental concern due to their widespread dispersion, harmful bioaccumulation, and resistance to mineralization. Unfortunately, typical processes in wastewater treatment plants are insufficient for complete antibiotic removal, and their derivatives in effluent can pose a threat to human health and aquatic communities. Adsorption and photocatalysis are proven to be the most commonly used and promising tertiary treatment methods. Carbon-based materials, especially those based on graphene, carbon nanotube, biochar, and hierarchical porous carbon, have attracted much attention in antibiotic removal as green adsorbents and photocatalysts because of their availability, unique pore structures, and superior physicochemical properties. This review provides an overview of the characteristics of the four most commonly used carbonaceous materials and their applications in antibiotic removal via adsorption and photodegradation, and the preparation of carbonaceous materials and remediation properties regarding target contaminants are clarified. Meanwhile, the fundamental adsorption and photodegradation mechanisms and influencing factors are summarized. Finally, existing problems and future research needs are put forward. This work is expected to inspire subsequent research in carbon-based adsorbent and photocatalyst design, particularly for antibiotics removal.
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Zhang K, Wei Y, Cao H, Xin Y, Wang C. Modulation of reactive species in peroxymonosulfate activation by photothermal effect: a case of MOF-derived ZnFe2O4/C. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zhou T, Shi J, Li G, Liu B, Hu B, Che G, Liu C, Wang L, Yan L. Advancing n-π* electron transition of carbon nitride via distorted structure and nitrogen heterocycle for efficient photodegradation: Performance, mechanism and toxicity insight. J Colloid Interface Sci 2022; 632:285-298. [DOI: 10.1016/j.jcis.2022.11.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/31/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022]
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Tessema A, Wu CM, Motora KG. Highly Efficient Solar Light Driven g-C 3N 4@Cs 0.33WO 3 Heterojunction for the Photodegradation of Colorless Antibiotics. ACS OMEGA 2022; 7:38475-38486. [PMID: 36340061 PMCID: PMC9631413 DOI: 10.1021/acsomega.2c03675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
This study facilitates the synthesis of a graphitic carbon nitride/cesium tungsten oxide (g-C3N4@Cs0.33WO3) heterojunction using a solvothermal method. The photocatalytic activities of the prepared samples were examined for the photodegradation of colorless antibiotics, namely tetracycline, enrofloxacin, and ciprofloxacin, as well as cationic and anionic dyes, such as methyl orange, rhodamine B, neutral red, and methylene blue, under full-spectrum solar light. We have purposely selected different kinds of wastewater pollutants of colorless antibiotics and cationic and anionic organic dyes to investigate the potential application of this heterojunction toward different groups of water pollutants. The results revealed that the g-C3N4@Cs0.33WO3 heterojunction showed an outstanding photocatalytic activity toward all the pollutants with concentrations of 20 ppm each at pH 3 by photocatalytically removing 97% of tetracycline within 3 h, 98% of enrofloxacin within 2 h, 97% of ciprofloxacin within 2.25 h, 98% of methylene blue in 1 h, 99% of rhodamine B within 2 h, 99% of neutral red in 1.25 h, and 95% of methyl orange in 2 h. These findings indicate that the developed photocatalyst possesses excellent photocatalytic properties toward seven different water pollutants that make it a universal photocatalyst. The developed g-C3N4@Cs0.33WO3 oxide heterojunction also presented a photocatalytic performance better than those of reported solar light active photocatalysts for photodegradation of rhodamine B and tetracycline. The efficient photocatalytic performance of the heterojunction can be ascribed to its extended light-absorbing ability, effective charge separation and fast charge transfer properties, and a high surface area. Moreover, an active species detection experiment also confirmed that superoxide radicals, hydroxyl radicals, and holes played significant roles in the photocatalysis of the organic dyes and tetracycline.
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Comparison of the activation efficiency of peroxymonosulfate on carbon nanotubes modified by carbon nitride vs nitrogen-doping for nonradical degradation of p-hydroxybenzoic acid. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Hao CC, Chen FY, Bian K, Tang YB, Shi WL. Spindle-like MIL101(Fe) decorated with Bi 2O 3 nanoparticles for enhanced degradation of chlortetracycline under visible-light irradiation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1038-1050. [PMID: 36247530 PMCID: PMC9531557 DOI: 10.3762/bjnano.13.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
Improving the photocatalytic performance of metal-organic frameworks (MOFs) is an important way to expand its potential applications. In this work, zero-dimensional (0D) Bi2O3 nanoparticles were anchored to the surface of tridimensional (3D) MIL101(Fe) by a facile solvothermal method to obtain a novel 0D/3D heterojunction Bi2O3/MIL101(Fe) (BOM). The morphology and optical properties of the as-prepared Bi2O3/MIL101(Fe) composite were characterized. The photocatalytic activity of the synthesized samples was evaluated by degrading chlortetracycline (CTC) under visible-light irradiation. The obtained BOM-20 composite (20 wt % Bi2O3/MIL101(Fe)) exhibits the highest photocatalytic activity with CTC degradation efficiency of 88.2% within 120 min. The degradation rate constant of BOM-20 toward CTC is 0.01348 min-1, which is 5.9 and 4.3 times higher than that of pristine Bi2O3 and MIL101(Fe), respectively. The enhanced photocatalytic activity is attributed to the formation of a Z-scheme heterojunction between Bi2O3 and MIL101(Fe), which is conducive to the rapid separation of photogenerated carriers and the enhancement of photogenerated electron and hole redox capacity. The intermediate products were analyzed by liquid chromatography-mass spectrometry (LC-MS), and a possible photocatalytic degradation path of CTC was proposed. This work provides a new perspective for the preparation of efficient MOF-based photocatalysts.
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Affiliation(s)
- Chen-chen Hao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, PR China
| | - Fang-yan Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, PR China
| | - Kun Bian
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, PR China
| | - Yu-bin Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, PR China
| | - Wei-long Shi
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, PR China
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Bhakta AK, Fiorenza R, Jlassi K, Mekhalif Z, Ali AMA, Chehimi MM. The emerging role of biochar in the carbon materials family for hydrogen production. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Zhu KA, Yuan CW, Sun YJ, Chen XJ, Zhang BB, Chen YP, Guo JS, Chen F. Miraculous dye-photosensitization-assisted peroxymonosulfate activation at the carbon nitride interface: Enhanced activity and synergistic mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121417] [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]
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Zhao Y, Guo H, Liu J, Xia Q, Liu J, Liang X, Liu E, Fan J. Effective photodegradation of rhodamine B and levofloxacin over CQDs modified BiOCl and BiOBr composite: Mechanism and toxicity assessment. J Colloid Interface Sci 2022; 627:180-193. [PMID: 35842968 DOI: 10.1016/j.jcis.2022.07.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 10/17/2022]
Abstract
In this contribution, carbon quantum dots (CQDs) modified 3D-flower like BiOX (X = Cl, Br, I) photocatalyst were successfully prepared via a facile mechanical compounding method. The crystal structure, surface composition, morphologies, optical properties and photocatalytic activities were investigated in detail. The photocatalytic activity of the as-obtained photocatalyst were evaluated by degradation of rhodamine B (RhB) and Levofloxacin (LEV) under near IR-UV-vis light irradiation, the CQDs/BiOX composite displayed enhanced photocatalytic activity as compared with individual BiOX materials. The CQDs/BiOX composite had the outstanding light harvesting and electron transfer ability because of the ordered ultrathin nanosheet structure of the BiOX, the formation of metal Bi under photoinduction, and the synergistic effects between CQDs and pure BiOX. Antibacterial activity and effects on Rye seeds growth of the LEV degradation intermediate were also researched. Reactive-species-trapping experiments exhibited that h+ and O2- were the active reactive species during photodegradation process. This work provided an effective and simple strategy for designing QDs modified Bi-rich oxyhalides in organic pollutant containing wastewater treatment.
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Affiliation(s)
- Yanyan Zhao
- College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo 726000, PR China.
| | - Hongxia Guo
- Nursing College of Anhui Sanlian University, 230000, PR China
| | - Jie Liu
- College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo 726000, PR China
| | - Qiong Xia
- College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo 726000, PR China
| | - Jifang Liu
- The College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Xuhua Liang
- College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo 726000, PR China
| | - Enzhou Liu
- School of Chemical Engineering, Northwest University, Xi'an 710069, PR China
| | - Jun Fan
- College of Food Science and Technology, Northwest University, Xi'an 710069, PR China.
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