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Wu M, Fan Q, Li X, Wang P, Feng C, Wang L, Chang Z, Wu W, Chong R. Surface coordination induced a quasi p-n junction for efficient visible light driven degradation of tetracycline over hydroxyapatite. J Colloid Interface Sci 2024; 667:312-320. [PMID: 38640651 DOI: 10.1016/j.jcis.2024.04.077] [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: 01/31/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/21/2024]
Abstract
The removal of antibiotics from aquatic solutions remains a global environmental challenge. In this work, the photocatalytic removal of a typical antibiotic-tetracycline (TC) using hydroxyapatite (HAp) as a catalyst was investigated. It was impressive that TC could be efficiently degraded by HAp under visible light irradiation, even though both HAp and TC exhibited poor harvesting in visible light region. The experimental and theoretical explorations were undertaken to thoroughly investigate the underlying mechanism of visible light degradation of TC over HAp. The results indicated that the formed TC-HAp complexes via surface coordination played an important role as photosensitizers for the visible light response. Together with the formation of a quasi p-n junction via band alignment, the photogenerated electrons in the highest unoccupied molecular orbital (HOMO) of TC-HAp were excited to the lowest unoccupied molecular orbital (LUMO) and subsequently migrated to the conduction band of HAp to achieve the efficient charge separation. Superoxide radicals and holes were found to be the major active species for TC degradation. The toxicity evaluation showed that TC could be transferred to the lower toxic intermediates, and deep oxidation with prolonged reaction time was necessary to eliminate the toxicity of TC. This work demonstrates the surface coordination with subsequent quasi p-n junction mechanism of TC degradation over HAp under visible light, which will stimulate us to explore new efficient photocatalytic systems for the degradation of various contaminants.
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Affiliation(s)
- Mingwei Wu
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China
| | - Qinge Fan
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China
| | - Xiaohui Li
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China
| | - Penglong Wang
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China
| | - Caixia Feng
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China
| | - Li Wang
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China
| | - Zhixian Chang
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China.
| | - Wenpeng Wu
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China.
| | - Ruifeng Chong
- Henan Provincial Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys, Henan Engineering Research Center for Control and Remediation of Soil Heavy Pollution, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, PR China.
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2
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Ge S, Cai Y, Deng L, Jin M, Qu X, Liu H, Wang H, Wang B. Constructing Heptazine-COF@TiO 2 Heterojunction Photocatalysts for Efficient Photodegradation of Acetaminophen under Visible Light. Chempluschem 2024; 89:e202400139. [PMID: 38470161 DOI: 10.1002/cplu.202400139] [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: 02/19/2024] [Revised: 02/22/2024] [Indexed: 03/13/2024]
Abstract
Constructing heterojunction photocatalysts are widely applied to boost the photocatalytic activity of materials. Here, a novel covalent organic framework (COF) material with heptazine units was developed and hybridized with TiO2 nano particles (NPs) to fabricate the Heptazine-COF@TiO2 photocatalysts for acetaminophen (AAP) photodegradation. The successfully assembled heptazine unit endows the Heptazine-COF with outstanding semiconductor property (optical bandgap is 2.53 eV). The synthesized Heptazine-COF@TiO2 hybrids is proved to have the heterojunction structure with high visible light activity and fast charge-carrier mobility, and exhibits better performance in photodegradation of AAP under visible light. The excellent photodegradation efficiency (rate constant: 0.758 min-1) and high reusability (rate constant: 0.452 min-1 in the 6th cycles) of the optimized sample outperform the traditional inorganic photocatalysts and other heterojunction photocatalysts. In addition, these photocatalysts present universal degradation activity for other dyes and antibiotics.
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Affiliation(s)
- Shijie Ge
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - Yixiao Cai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - Lili Deng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - Mengtian Jin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - Xiangyang Qu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - He Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - Huaping Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
| | - Biao Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P. R. China
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Cappelletti D, Barbieri M, Aliprandi A, Maggini M, Đorđević L. Self-assembled π-conjugated chromophores: preparation of one- and two-dimensional nanostructures and their use in photocatalysis. NANOSCALE 2024; 16:9153-9168. [PMID: 38639760 PMCID: PMC11097008 DOI: 10.1039/d4nr00383g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/03/2024] [Indexed: 04/20/2024]
Abstract
Photocatalytic systems have attracted research interest as a clean approach to generate energy from abundant sunlight. In this context, developing efficient and robust photocatalytic structures is crucial. Recently, self-assembled organic chromophores have entered the stage as alternatives to both molecular systems and (in)organic semiconductors. Nanostructures made of self-assembled π-conjugated dyes offer, on the one hand, molecular customizability to tune their optoelectronic properties and activities and on the other hand, provide benefits from heterogeneous catalysis that include ease of separation, recyclability and improved photophysical properties. In this contribution, we present recent achievements in constructing supramolecular photocatalytic systems made of chromophores for applications in water splitting, H2O2 evolution, CO2 reduction, or environmental remediation. We discuss strategies that can be used to prepare ordered photocatalytic systems with an emphasis on the effect of packing between the dyes and the resulting photocatalytic activity. We further showcase supramolecular strategies that allow interfacing the organic nanostructures with co-catalysts, molecules, polymers, and (in)organic materials. The principles discussed here are the foundation for the utilization of these self-assembled materials in photocatalysis.
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Affiliation(s)
- David Cappelletti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.
| | - Marianna Barbieri
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.
| | - Alessandro Aliprandi
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.
| | - Michele Maggini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.
| | - Luka Đorđević
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.
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4
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Cai C, Fan G, Cao X, Luo J, He Z, Wang S, Xu KQ. Novel Ag 3PO 4/ZnWO 4-modified graphite felt electrode for photoelectrocatalytic removal of harmful algae: Performance and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134198. [PMID: 38608582 DOI: 10.1016/j.jhazmat.2024.134198] [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: 01/03/2024] [Revised: 03/24/2024] [Accepted: 03/31/2024] [Indexed: 04/14/2024]
Abstract
A novel Ag3PO4/ZnWO4-modified graphite felt electrode (AZW@GF) was prepared by drop coating method and applied to photoelectrocatalytic removal of harmful algae. Results showed that approximately 99.21% of chlorophyll a and 91.57% of Microcystin-LR (MCLR) were degraded by the AZW@GF-Pt photoelectrocatalytic system under the optimal operating conditions with a rate constant of 0.02617 min-1 and 0.01416 min-1, respectively. The calculated synergistic coefficient of photoelectrocatalytic algal removal and MC-LR degradation by the AZW@GF-Pt system was both larger than 1.9. In addition, the experiments of quenching experiments and electron spin resonance (ESR) revealed that the photoelectrocatalytic reaction mainly generated •OH and •O2- for algal removal and MC-LR degradation. Furthermore, the potential pathway for photoelectrocatalytic degradation of MC-LR was proposed. Finally, the photoelectrocatalytic cycle algae removal experiments were carried out on AZW@GF electrode, which was found to maintain the algae removal efficiency at about 91% after three cycles of use, indicating that the photoelectrocatalysis of AZW@GF electrode is an effective emergency algae removal technology.
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Affiliation(s)
- Chenjian Cai
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
| | - Gongduan Fan
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China; Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 350002, Fujian, China.
| | - Xingfeng Cao
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
| | - Jing Luo
- Fujian Jinhuang Environmental Sci-Tech Co., Ltd., 350002 Fujian, China
| | - Zhimin He
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
| | - Shichang Wang
- Fujian Provincial lnvestigation, Design & Research Institute of Water Conservancy & Hydropower Co. Ltd, 350001, Fujian, China
| | - Kai-Qin Xu
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
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5
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Liang J, Wang J, Hou H, Xu Q, Liu W, Su C, Sun H. Immobilization of Perylenetetracarboxylic Dianhydride on Al 2O 3 for Efficiently Photocatalytic Sulfide Oxidation. Molecules 2024; 29:1934. [PMID: 38731425 PMCID: PMC11085609 DOI: 10.3390/molecules29091934] [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: 04/02/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Perylenetetracarboxylic dianhydride (PTCDA) derivatives have received significant attention as molecule photocatalysts. However, the poor recyclability of molecule-type photocatalysts hinders their widespread applications. Herein, immobilization of PTCDA on Al2O3 was achieved by simply physical mixing, which not only dramatically improved their recyclability, but also surprisingly improved the reactivity. A mechanism study suggested that the photo-exited state (PTCDA*) of PTCDA could promote the oxidation of thioanisole to generate PTCDA•-, which sequentially reduces oxygen to furnish superoxide radicals to achieve the catalytic cycle. Herein, the immobilization support Al2O3 was able to facilitate the strong adsorption of thioanisole, thereby boosting the photocatalytic activity. This work provides a new insight that the immobilization of organic molecular photocatalysts on those supports with proper adsorption sites could furnish highly efficient, stable, and recyclable molecular-based heterogeneous photocatalysts.
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Affiliation(s)
- Jiahao Liang
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
| | - Jie Wang
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
| | - Hao Hou
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
| | - Qingzhu Xu
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
| | - Wei Liu
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
| | - Chenliang Su
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
| | - Hongli Sun
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (J.L.); (H.H.); (Q.X.); (W.L.); (C.S.)
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
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6
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Song Z, Zhang H, Ma L, Lu M, Wu C, Liu Q, Yu X, Liu H, Ye X, Ma Z, Wu Z. Basic magnesium sulfate@TiO 2 composite for efficient adsorption and photocatalytic degradation of 4-dodecylmorpholine in brine. Sci Rep 2024; 14:9315. [PMID: 38653770 DOI: 10.1038/s41598-024-59921-8] [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: 01/24/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
More than 70% of the potash fertilizer globally is produced by the froth flotation process, in which 4-dodecylmorpholine (DMP) serves as a reverse flotation agent. As the potash fertilizer production rapidly rises, the increased DMP levels in discharged brine pose a threat to the production of high-value chemicals. In this paper, composite particles of basic magnesium sulfate@TiO2 (BMS@TiO2) were prepared using a simple and mild loading method. These particles were utilized for the adsorption and photocatalytic degradation of DMP in brine. Compared with normal powdered materials, the granular BMS@TiO2 in this study can be easily separated from liquid, and the degradation intermediates will not enter the brine without causing secondary pollution. BMS@TiO2 consists of 5·1·7 phase (5Mg(OH)2·MgSO4·7H2O) whisker clusters embedding 2.3% TiO2. The adsorption equilibrium of DMP on BMS@TiO2 particles was achieved through hydrogen bonding and pore interception with the adsorption capacity of approximately 5 mg g-1 after 6 h. The photodegradation efficiency of DMP adsorbed on BMS@TiO2 reached about 92% within 16 h, which is compared with that of pure TiO2 nanoparticles. Additionally, excellent stability and recyclability of BMS@TiO2 were also observed in five cycle tests of adsorption and photocatalytic degradation of DMP, and the possible photocatalytic degradation pathways and mechanism of DMP are proposed following molecular electrostatic potential analysis. This work provides a sustainable and environmentally friendly approach for eliminating organic micropollutants from water environments.
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Affiliation(s)
- Zhongmei Song
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huifang Zhang
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China.
| | - Liang Ma
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Miao Lu
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | | | - Qingqing Liu
- Qinghai Salt Lake Industry Co., Ltd., Golmud, 816000, China
| | - Xuefeng Yu
- Qinghai Salt Lake Industry Co., Ltd., Golmud, 816000, China
| | - Haining Liu
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China.
| | - Xiushen Ye
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China
| | - Zhen Ma
- Qinghai Salt Lake Industry Co., Ltd., Golmud, 816000, China
| | - Zhijian Wu
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China
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7
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Geng L, Li H, Liu J, Yang Z, Wei J. Molecular Stacking Dependent Molecular Oxygen Activation in Supramolecular Polymeric Photocatalysts. J Phys Chem Lett 2024; 15:3127-3134. [PMID: 38471101 DOI: 10.1021/acs.jpclett.4c00112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Here, we showed that supramolecular assemblies based on perylene diimides (PDIs) are able to activate molecular oxygen through both the electron transfer and energy transfer pathways, which consequently leads to the formation of superoxide radicals (·O2-) and singlet oxygen species (1O2), respectively. These reactive oxygen species (ROS) can effectively lead to oxidative coupling of benzylamine and oxidation of 2-chloroethyl sulfide (CEES). We have designed and synthesized PDIs with similar molecular structures yet differing by the molecular stacking modes. We found that the photooxidation activities of the PDI supramolecular assemblies are inversely associated with the photoluminescence wavelength difference between the assemblies and the monomers (Δλ) quantitatively, and a smaller Δλ results in a higher catalytic efficiency accordingly. Overall, this work contributes to the design and fabrication of high performance photocatalysts based on metal-free organic materials.
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Affiliation(s)
- Lifang Geng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Hui Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Jiaming Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Zhijie Yang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Jingjing Wei
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
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8
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Han Y, Chao M, Luo C, Yan L. Self-assembled B-doped flower-like graphitic carbon nitride with high specific surface area for enhanced photocatalytic performance. J Colloid Interface Sci 2024; 657:309-319. [PMID: 38043232 DOI: 10.1016/j.jcis.2023.11.114] [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: 08/08/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 12/05/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is a promising nonmetallic photocatalyst. In this manuscript, B-doped 3D flower-like g-C3N4 mesoporous nanospheres (BMNS) were successfully prepared by self-assembly method. The doping of B element promotes the internal growth of hollow flower-like g-C3N4 without changing the surface roughness structure, resulting in a porous floc structure, which enhances the light absorption and light reflection ability, thereby improving the light utilization rate. In addition, B element provides lower band gap, which stimulates the carrier movement and increases the activity of photogenerated carriers. The photocatalytic mechanism and process of BMNS were investigated in depth by structural characterization and performance testing. BMNS-10 % shows good degradation for four different pollutants, among which the degradation effect on Rhodamine B (RhB) reaches 97 % in 30 min. The apparent rate constant of RhB degradation by BMNS-10 % is 0.125 min-1, which is 46 times faster compared to bulk g-C3N4 (BCN). And the photocatalyst also exhibits excellent H2O2 production rate under visible light. Under λ > 420 nm, the H2O2 yield of BMNS-10 % (779.9 μM) in 1 h is 15.9 times higher than that of BCN (48.98 μM). Finally, the photocatalytic mechanism is proposed from the results of free radical trapping experiments.
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Affiliation(s)
- Yi Han
- Polymer Materials & Engineering Department, School of Materials Science & Engineering, Chang'an University, Xian 710064, China
| | - Min Chao
- Polymer Materials & Engineering Department, School of Materials Science & Engineering, Chang'an University, Xian 710064, China.
| | - Chunjia Luo
- Polymer Materials & Engineering Department, School of Materials Science & Engineering, Chang'an University, Xian 710064, China
| | - Luke Yan
- Polymer Materials & Engineering Department, School of Materials Science & Engineering, Chang'an University, Xian 710064, China.
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9
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Hao J, Huang L, Zheng L, Wang Q, Yin Z, Li H, Jia L, Liao W, Liu K. A direct electrochemical sensor based on covalent organic frameworks/platinum nanoparticles for the detection of ofloxacin in water. Mikrochim Acta 2024; 191:145. [PMID: 38372818 DOI: 10.1007/s00604-024-06205-7] [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: 10/17/2023] [Accepted: 01/08/2024] [Indexed: 02/20/2024]
Abstract
A direct electrochemical sensor based on covalent organic frameworks (COFs)/platinum nanoparticles (PtNPs) composite was fabricated for the detection of ofloxacin (OFX) in water. Firstly, the COF material was synthesized via the condensation reaction of 1,3,5-tris(4-aminophenyl)benzene (TAPB) with terephthalaldehyde (TPA) and integrated with PtNPs by in situ reduction. Then, TAPB-TPA-COFs/PtNPs composite was loaded onto the surface of the glassy carbon electrode (GCE) by drip coating to construct the working electrode (TAPB-TPA-COFs/PtNPs/GCE). The electrochemical performance of TAPB-TPA-COFs/PtNPs/GCE showed a significant improvement compared with that of TAPB-TPA-COFs/GCE, leading to a 3.2-fold increase in the electrochemical signal for 0.01 mM OFX. Under optimal conditions, the TAPB-TPA-COFs/PtNPs/GCE exhibited a wide linear range of 9.901 × 10-3-1.406 µM and 2.024-15.19 µM with a detection limit of 2.184 × 10-3 µM. The TAPB-TPA-COFs/PtNPs/GCE-based electrochemical sensor with excellent performance provides great potential for the rapid and trace detection of residual OFX.
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Affiliation(s)
- Juan Hao
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Chengdu University, Chengdu, 610106, China
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China
| | - Lijuan Huang
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Chengdu University, Chengdu, 610106, China
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China
| | - Li Zheng
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Chengdu University, Chengdu, 610106, China
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China
| | - Qinghui Wang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China
- School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China
| | - Zhihang Yin
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Chengdu University, Chengdu, 610106, China
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China
| | - Huiming Li
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China
- School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China
| | - Lingpu Jia
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China.
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, China.
| | - Wenlong Liao
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China.
- School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China.
| | - Kunping Liu
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Chengdu University, Chengdu, 610106, China.
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610106, China.
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10
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Zheng Y, Xiao Z, Lin Y, Fang Z, Liu D, Lin Z, Zhang Q, Chen P, Zhang Z, Xv L, Lv W, Liu G. Degradation of sulfonamide antibiotic via UV/MgO 2 system: kinetic, application, and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:14239-14253. [PMID: 38273083 DOI: 10.1007/s11356-024-32079-6] [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: 05/11/2023] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
In response to antibiotic residues in the water, a novel advanced oxidation technology based on MgO2 was used to remediate sulfamethazine (SMTZ) pollution in aquatic environments. Upon appropriate regulation, the remarkable removal efficiency of SMTZ was observed in a UV/MgO2 system, and the pseudo-first-order reaction constant reached 0.4074 min-1. In addition, the better performance of the UV/MgO2 system in a weak acid environment was discovered. During the removal of SMTZ, the pathways of SMTZ degradation were deduced, including nitration, ring opening, and group loss. In the mineralization exploration, the further removal of residual products of SMTZ by the UV/MgO2 system was visually demonstrated. The qualitative and quantitative researches as well as the roles of reactive species were valuated, which revealed the important role of ·O2-. Common co-existing substances in actual wastewater such as NO3- HA, Cl-, Fe2+, Co2+, and Mn2+ can slightly inhibit the degradation of SMTZ in the UV/MgO2 system. Finally, the capacity of efficient degradation of SMTZ in actual wastewater by the UV/MgO2 system was proved. The results indicated that the innovative UV/MgO2 system was of great practical application prospect in antibiotic residue wastewater remediation.
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Affiliation(s)
- Yixun Zheng
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Zhenjun Xiao
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yijie Lin
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Zheng Fang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Deyang Liu
- School of Foreign Languages, Guangdong University of Technology, Guangzhou, 510006, China
| | - Zifeng Lin
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Qianxin Zhang
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Ping Chen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Zhenheng Zhang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Lu Xv
- School of Art & Design, Guangdong University of Technology, Guangzhou, 510006, China
| | - Wenying Lv
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Guoguang Liu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
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11
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Mumtaj ZA, Khan AR, Alsubih M, Aleya L, Khan RA, Khan S. Removal of pharmaceutical contaminants from hospital wastewater using constructed wetlands: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:12856-12870. [PMID: 38277099 DOI: 10.1007/s11356-024-32022-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 01/11/2024] [Indexed: 01/27/2024]
Abstract
AbstractPharmaceutical compounds are a significant source of environmental pollution, particularly in hospital wastewater, which contains high concentrations of such compounds. Constructed wetlands have emerged as a promising approach to removing pharmaceutical compounds from wastewater. This paper aims to review the current state of knowledge on the removal of pharmaceutical compounds from hospital wastewater using constructed wetlands, including the mechanism of removal, removal efficiency, and future prospects. Pharmaceutical contaminants have been considered to be one of the most emerging pollutants in recent years. In this review article, various studies on constructed wetlands are incorporated in order to remove the pharmaceutical contaminants. The nature of constructed wetland can be explained by understanding the types of constructed wetland, characteristics of hospital wastewater, removal mechanism, and removal efficiency. The results of the review indicate that constructed wetlands are effective in removing pharmaceutical compounds from hospital wastewater. The removal mechanism of these compounds involves a combination of physical, chemical, and biological processes, including adsorption, degradation, and uptake by wetland plants. The removal efficiency of constructed wetlands varies depending on several factors, including the type and concentration of pharmaceutical compounds, the design of the wetland system, and the environmental conditions. Further research is necessary to optimize the performance of these systems, particularly in the removal of emerging contaminants, to ensure their effectiveness and long-term sustainability.
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Affiliation(s)
- Zeba Ali Mumtaj
- Department of Chemistry, Integral University, Dashauli, India
| | | | - Majed Alsubih
- Department of Civil Engineering, King Khalid University, Abha, Saudi Arabia
| | - Lotfi Aleya
- National Center of Scientific Research (6249) Franche-Comté University, Besançon, France
| | - Roohul Abad Khan
- Department of Civil Engineering, King Khalid University, Abha, Saudi Arabia
| | - Saimah Khan
- Department of Chemistry, Integral University, Dashauli, India.
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12
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Yue B, Liu S, Zhang W, Ding W, Zheng H, Li H. Cobalt(II) mediated calcium sulfite activation for efficient oxidative decontamination in waters: Performance, kinetics and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132731. [PMID: 37813035 DOI: 10.1016/j.jhazmat.2023.132731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/20/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
To overcome the drawback that excess SO32- from soluble Na2SO3 captures the generated reactive intermediates in sulfite (S(IV))-based advanced oxidation processes (AOP), CaSO3 of the ability to slowly release SO32- is selected as an alternative S(IV) source to establish an enduring S(IV)-based AOP with Co(II). Herein, the Co(II)/CaSO3 process triggers a much better ofloxacin (OFL) degradation than the Co(II)/Na2SO3 process (degradation rate constant: 12.1 > 3.18 mM-1 min-1). The mechanism investigation corroborates that the Co(II) mediated CaSO3 activation follows a Fenton-like process (complexation followed by intramolecular electron transfer). Apart from the conventional sulfate radical (SO4•-), Co(IV) species and singlet oxygen (1O2) are also certifiably involved in Co(II)/CaSO3 process, and their role and formation mechanisms are elucidated comprehensively. Further, the proposed Co(II)/CaSO3 process exhibits an excellent tolerance to complex water matrices (e.g., background ions and humic acid), suggesting its practical application potential for various contaminants abatement in actual wastewater.
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Affiliation(s)
- Bangkang Yue
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Shuang Liu
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Weizhen Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Wei Ding
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China.
| | - Huaili Zheng
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Hong Li
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China.
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13
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Liu Z, Duan X, Sarmah AK, Zhao X, Ren X, Sun B. A novel 3-dimensional graphene-based cobalt-manganese bimetallic layered double hydroxide:Formation mechanism and performance in photo-assisted permonosulfate-activated degradation of sulfamethoxazole in aqueous solution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122397. [PMID: 37597732 DOI: 10.1016/j.envpol.2023.122397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 08/21/2023]
Abstract
Sulfamethoxazole (SMX) is a common antibiotic used mainly for bacterial treatment. In this study, a novel three-dimensional cobalt-manganese bimetallic layered double hydroxide graphene hydrogel (CoMn-LDHs/rGO) has been prepared for photo-assisted permonosulfate (PMS)-activated degradation of SMX in water. Compared with the CoMn-LDHs/rGO + PMS and CoMn-LDHs/rGO + Vis systems, the degradation effect of CoMn-LDHs/rGO + PMS + Vis system is the best, and the degradation effect of CoMn-LDHs/rGO system could reach more than 98% under the optimal conditions. After 10 cycles, the catalytic degradation performance of CoMn-LDHs/rGO system remained good, while effectively preventing the leaching of metal ions. Based on the synergistic effect of photocatalysis and PMS oxidation, electron spin resonance spectroscopy and quenching experiments showed that three active substances (•OH, •SO4- and O2•-) were involved in the degradation of SMX. Density functional theory and liquid chromatography-mass spectrometry (LC-MS) results further proposed the SMX degradation transformation calculation. As expected, the study of the reaction mechanism of 3D CoMn-LDHs/rGO assisted PMS activation under visible light provides an efficient and rapid method for the sustainable degradation of pollutants in water system.
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Affiliation(s)
- Zhibo Liu
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping, 136000, China
| | - Xiaoyue Duan
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Siping, 136000, China
| | - Ajit K Sarmah
- The Department of Civil & Environmental Engineering, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Xuesong Zhao
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping, 136000, China; Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Siping, 136000, China.
| | - Xin Ren
- College of Environmental Science and Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping, 136000, China; Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Siping, 136000, China
| | - Bo Sun
- National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou, China
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14
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Chen Y, Lin Z, Zhang J, Liu Y, Liang D, Li D, Zhang Y, Liu H, Chen P, Lv W, Liu G. Strategy for improvement of molecular oxygen activation capacity of PPECu by chlorine doping for water decontamination. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132421. [PMID: 37647668 DOI: 10.1016/j.jhazmat.2023.132421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/22/2023] [Accepted: 08/26/2023] [Indexed: 09/01/2023]
Abstract
The activation of molecular oxygen and generation of reactive oxygen species (ROS) play important roles in the efficient removal of contaminants from aqueous ecosystems. Herein, using a simple and rapid solvothermal process, we developed a chlorine-doped phenylethynylcopper (Cl/PPECu) photocatalyst and applied it to visible light degradation of sulfamethazine (SMT) in aqueous media. The Cl/PPECu was optimized to have a 2.52 times higher steady-state concentration of O2•- (3.62 × 10-5 M) and a 28.87 times higher degradation rate constant (0.2252 min-1) for SMT compared to pure PPECu. Further, the effectiveness of Cl/PPECu in treating sulfonamide antibiotics (SAs) in real water systems was verified through an investigation involving natural water bodies, SAs, and ambient sunlight. The energy band structure, DFT calculation and correlation heat map indicated that the addition of chlorine modulated the local electronic structure of PPECu, leading to an improvement in the electron-hole separation, enhanced the O2 activation, and promoted the generation of ROSs. This study not only puts forward innovative ideas for the eco-compatible remediation of environmental pollution using PPECu, but also sheds new light on the activation of oxygen through elemental doping.
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Affiliation(s)
- Yingyi Chen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Zili Lin
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Jinfan Zhang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yang Liu
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Danluo Liang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Daguang Li
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yudan Zhang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Haijin Liu
- Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control, School of Environment, Henan Normal University, Xinxiang 453007, China
| | - Ping Chen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenying Lv
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Guoguang Liu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
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15
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Hu J, Gong H, Liu X, Luo J, Zhu N. Target-prepared sludge biochar-derived synergistic Mn and N/O induces high-performance periodate activation for reactive iodine radicals generation towards ofloxacin degradation. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132362. [PMID: 37659237 DOI: 10.1016/j.jhazmat.2023.132362] [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: 06/02/2023] [Revised: 08/09/2023] [Accepted: 08/20/2023] [Indexed: 09/04/2023]
Abstract
Converting waste activated sludge into catalysts for the removal of antibiotics in water fulfils the dual purpose of waste-to-resource and hazardous pollution elimination. In this study, sludge-derived biochar (SDB) for efficient periodate (PI) activation was first prepared via one-step pyrolysis of potassium permanganate-polyhexamethylenebiguanide conditioned sludge without additional modification. The SDB (750 °C)-PI system degraded 100% ofloxacin (OFL, 41.5 μM) within 6 min and was almost undisturbed by inorganic ions or humic acids. The experimental results confirmed that the predominant role of reactive iodine species (RIS) and the auxiliary involvement of singlet oxygen (1O2) jointly contributed to the OFL degradation. Theoretical calculations further indicated that the synergy between Mn and N/O induced local charge redistribution and improved electron transfer capability of SDB, leading to the formation of electron-rich Mn sites and enhanced Mn(II)↔Mn(III)↔Mn(IV) redox to promote PI activation. More importantly, the enhanced adsorption and charge transfer of PI on the Mn site of the Mn-N/O-C structures induced the I-O bond stretching and the rapid generation of RIS. This study offered a cost-effective strategy for developing SDB-based catalysts, further advancing the comprehension of sludge management and the intricate mechanisms underlying RIS formation in PI-advanced oxidation processes.
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Affiliation(s)
- Jinwen Hu
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huabo Gong
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xu Liu
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinming Luo
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Nanwen Zhu
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
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16
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Li J, Liu X, Xi J, Deng L, Yang Y, Li X, Sun H. Recent Development of Polymer Nanofibers in the Field of Optical Sensing. Polymers (Basel) 2023; 15:3616. [PMID: 37688242 PMCID: PMC10489887 DOI: 10.3390/polym15173616] [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: 07/18/2023] [Revised: 08/25/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
In recent years, owing to the continuous development of polymer nanofiber manufacturing technology, various nanofibers with different structural characteristics have emerged, allowing their application in the field of sensing to continually expand. Integrating polymer nanofibers with optical sensors takes advantage of the high sensitivity, fast response, and strong immunity to electromagnetic interference of optical sensors, enabling widespread use in biomedical science, environmental monitoring, food safety, and other fields. This paper summarizes the research progress of polymer nanofibers in optical sensors, classifies and analyzes polymer nanofiber optical sensors according to different functions (fluorescence, Raman, polarization, surface plasmon resonance, and photoelectrochemistry), and introduces the principles, structures, and properties of each type of sensor and application examples in different fields. This paper also looks forward to the future development directions and challenges of polymer nanofiber optical sensors, and provides a reference for in-depth research of sensors and industrial applications of polymer nanofibers.
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Affiliation(s)
- Jinze Li
- School of Optoelectronic Engineering, Xidian University, Xi'an 710071, China
| | - Xin Liu
- School of Physics, Xidian University, Xi'an 710071, China
| | - Jiawei Xi
- School of Optoelectronic Engineering, Xidian University, Xi'an 710071, China
| | - Li Deng
- School of Optoelectronic Engineering, Xidian University, Xi'an 710071, China
| | - Yanxin Yang
- School of Optoelectronic Engineering, Xidian University, Xi'an 710071, China
| | - Xiang Li
- School of Optoelectronic Engineering, Xidian University, Xi'an 710071, China
| | - Hao Sun
- School of Optoelectronic Engineering, Xidian University, Xi'an 710071, China
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17
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Verma P, Samanta D, Sutar P, Kundu A, Dasgupta J, Maji TK. Biomimetic Approach toward Visible Light-Driven Hydrogen Generation Based on a Porphyrin-Based Coordination Polymer Gel. ACS APPLIED MATERIALS & INTERFACES 2023; 15:25173-25183. [PMID: 36449661 DOI: 10.1021/acsami.2c14533] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
There has been a widespread interest in developing self-assembled porphyrin nanostructures to mimic nature's light-harvesting processes. Herein, porphyrin-based coordination polymer gel (CPG) has been developed as a "soft" photocatalyst material for hydrogen (H2) production from water under visible light. The CPG offers a hierarchical nanofibrous network structure obtained through self-assembly of a terpyridine alkyl-amide appended porphyrin (TPY-POR)-based low molecular weight gelator with ruthenium ions (RuII) and produces H2 with a rate of 5.7 mmol g-1 h-1 in the presence of triethylamine (TEA) as a sacrificial electron donor. Further, the [Fe2(bdt)(CO)6] (dbt = 1,2-benzenedithiol) cocatalyst, which can mimic the activity of iron hydrogenase, is coassembled in the CPG and shows remarkable improvement in H2 evolution (catalytic activity; rate ∼10.6 mmol g-1 h-1 and turnover number ∼1287). The significant enhancement in catalytic activity was supported by several controlled experiments, including femtosecond transient absorption (TA) spectroscopy and also DFT calculation. The TA study supported the cascade electron transfer process from porphyrin core to [Ru(TPY)2]2+ center, and subsequently, the electron transfers to the cocatalyst [Fe2(bdt)(CO)6] for H2 production.
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Affiliation(s)
- Parul Verma
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore560 064, India
| | - Debabrata Samanta
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore560 064, India
| | - Papri Sutar
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore560 064, India
| | - Arup Kundu
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai400005, India
| | - Jyotishman Dasgupta
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai400005, India
| | - Tapas Kumar Maji
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore560 064, India
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18
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Yang H, Ping Q, Zhang Y. Highly efficient degradation of ofloxacin and diclofenac by composite photocatalyst aloe-emodin/PMMA. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27530-z. [PMID: 37178304 DOI: 10.1007/s11356-023-27530-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Photocatalysis is one of the most effective methods to remove pollutants from water. Photocatalyst is the core of photocatalysis. The composite photocatalyst combines the photosensitizer with the support and uses the photosensitivity of the photosensitizer and the stability and adsorption of the support to achieve efficient and rapid degradation of pharmaceuticals in water. In this study, natural aloe-emodin with π-conjugated structure was used as photosensitizer to react with macroporous resin polymethylmethacrylate (PMMA) under mild conditions to prepare composite photocatalysts AE/PMMAs. The photocatalyst underwent photogenerated electron migration under visible light to form •O2- and holes with high oxidation activity, which could realize efficient photocatalytic degradation of ofloxacin and diclofenac sodium and showed excellent stability, recyclability and industrial feasibility. This research has developed an efficient method of composite photocatalyst and realized the application of a natural photosensitizer in pharmaceutical degradations.
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Affiliation(s)
- Haifan Yang
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi, 214122, China
| | - Qian Ping
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yan Zhang
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi, 214122, China.
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19
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Zhang W, Teng M, Zhao L, Chen L. Study effect and mechanism of ofloxacin and levofloxacin on development of Rana nigromaculata tadpoles based on the hypothalamus-pituitary-thyroid axis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 259:114985. [PMID: 37178612 DOI: 10.1016/j.ecoenv.2023.114985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
Excessive antibiotics transferred into the aquatic environment may affect the development of amphibians. Previous studies on the aquatic ecological risk of ofloxacin generally ignored its enantiomers. The purpose of this study was to compare the effects and mechanisms of ofloxacin (OFL) and levofloxacin (LEV) on the early development of Rana nigromaculata. After 28-day exposure at environmental levels, we found that LEV exerted more severe inhibitory effects on the development of tadpoles than OFL. According to the enrichment results of differentially expressed genes in the LEV and OFL treatments, LEV and OFL had different effects on the thyroid development of tadpoles. dio2 and trh were affected by the regulation of dexofloxacin instead of LEV. At the protein level, LEV was the main component that affected thyroid development-related protein, while dexofloxacin in OFL had little effect on thyroid development. Furthermore, molecular docking results further confirmed that LEV was a major component affecting thyroid development-related proteins, including DIO and TSH. In summary, OFL and LEV regulated the thyroid axis by differential binding to DIO and TSH proteins, thereby exerting differential effects on the thyroid development of tadpoles. Our research is of great significance for comprehensive assessment of chiral antibiotics aquatic ecological risk.
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Affiliation(s)
- Wenjun Zhang
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Miaomiao Teng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Lihui Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Li Chen
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH 43210, USA
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20
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Ding C, Lu Y, Xiang M, Wu F, Chen P, Gan W, Guo J, Li J, Ling Q, Zhao Z, Chen L, Zhang M, Sun Z. Internal electric field-assisted copper ions chelated polydopamine/titanium dioxide nano-thin film heterojunctions activate peroxymonosulfate under visible light to catalyze degradation of gatifloxacin: Theoretical calculations and biotoxicity analysis. J Colloid Interface Sci 2023; 646:275-289. [PMID: 37196501 DOI: 10.1016/j.jcis.2023.05.023] [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: 02/08/2023] [Revised: 04/20/2023] [Accepted: 05/04/2023] [Indexed: 05/19/2023]
Abstract
The combination of photocatalysis and peroxymonosulfate (PMS) activation is considered effective in treating organic pollutants in water; however, the photocatalysts currently used to activate PMS are primarily in powder form, which cause secondary contamination because they are difficult to recycle. In this study, copper-ion-chelated polydopamine/titanium dioxide (Cu-PDA/TiO2) nanofilm were prepared for PMS activation on fluorine-doped tin oxide substrates using hydrothermal and in-situ self-polymerization methods. The results showed that Cu-PDA/TiO2 + PMS + Vis degraded 94.8% of gatifloxacin (GAT) within 60 min, and the reaction rate constant reached 4.928 × 10-2 min-1, which was 6.25 and 4.04 folds higher than that of TiO2 + PMS + Vis (0.789 × 10-2 min-1) and PDA/TiO2 + PMS + Vis (1.219 × 10-2 min-1), respectively. The Cu-PDA/TiO2 nanofilm is easily recyclable and activates PMS to degrade GAT with no inferior performance, unlike the powder-based photocatalysts, and simultaneously maintains outstanding stability, which is highly suitable for applications in real aqueous environments. Biotoxicity experiments were conducted using E. coli, S. aureus, and mung bean sprouts as experimental subjects, and the results showed that the Cu-PDA/TiO2 + PMS + Vis system had excellent detoxification ability. In addition, a detailed investigation of the formation mechanism of step-scheme (S-scheme) Cu-PDA/TiO2 nanofilm heterojunctions was conducted by density functional theory (DFT) calculations and in-situ X-ray photoelectron spectroscopy (XPS). Finally, a specific process for activating PMS to degrade GAT was proposed, which provides a novel photocatalysts for practical applications in aqueous pollution.
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Affiliation(s)
- Chunsheng Ding
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Yuqing Lu
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Ming Xiang
- Anhui Key Laboratory of Ecological Engineering and Biotechnology, School of Life sciences, Anhui University, Hefei, Anhui 230601, PR China
| | - Fen Wu
- Anhui Key Laboratory of Ecological Engineering and Biotechnology, School of Life sciences, Anhui University, Hefei, Anhui 230601, PR China
| | - Peng Chen
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Wei Gan
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Jun Guo
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Jianrou Li
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Qi Ling
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Ziwei Zhao
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China
| | - Lei Chen
- Anhui Key Laboratory of Ecological Engineering and Biotechnology, School of Life sciences, Anhui University, Hefei, Anhui 230601, PR China.
| | - Miao Zhang
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China.
| | - Zhaoqi Sun
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, PR China.
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21
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Electron transfer mechanism that Ti3C2 regulates Cl-doped carbon nitride nanotube: Realizing efficient photocatalytic decarbonization and denitrification in wastewater. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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22
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Li J, Wang C, Ma Y, Li K, Mei Y. In situ formation of red/black phosphorus-modified SiO 2@g-C 3N 4 multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants. RSC Adv 2023; 13:13142-13155. [PMID: 37124021 PMCID: PMC10140671 DOI: 10.1039/d3ra01850d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/14/2023] [Indexed: 05/02/2023] Open
Abstract
A new heterojunction material BP/RP-g-C3N4/SiO2 was obtained by a one-step ball milling method, and its photocatalytic capacity was researched by the degradation of Rhodamine B (RhB) and ofloxacin (OFL) in simulated sunlight. The construction of an in situ BP/RP heterojunction can achieve perfect interface contact between different semiconductors and effectively promote the separation of photogenerated carriers. The composite material was well characterized, which proved that the multi-heterogeneous structure was prepared. Furthermore, the type II heterojunction was formed between the g-C3N4 and BP/RP interface, playing an important role in the degradation and promoting electron transfer. The degradation effect of BP/RP-g-C3N4/SiO2 on RhB reached 90% after 26 min of simulated solar irradiation, which was 1.8 times that of g-C3N4/SiO2. The degradation of OFL by BP/RP-g-C3N4/SiO2 reached 85.3% after illumination for 50 min, while the degradation of g-C3N4/SiO2 was only 35.4%. The mechanisms were further discussed, and ˙O2 - and h+ were found to be the main active substances to degrade RhB. The catalyst also revealed distinguished stability of catalyst and recyclability, and the degradation effect of RhB can still realize 85% after 4 runs of experiment. Thus, this study provided a novel method for the design and preparation of multi-heterojunction catalysts in the removal of organic pollutants from wastewater.
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Affiliation(s)
- Jiancheng Li
- Faculty of Chemical Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-159 2512 8686
- Yunnan Provience Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming City 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Provience Kunming City 650500 China
| | - Chi Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-159 2512 8686
- Yunnan Provience Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming City 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Provience Kunming City 650500 China
| | - Yixing Ma
- Faculty of Environmental Science Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-187 8810 3059
| | - Kai Li
- Faculty of Environmental Science Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-187 8810 3059
| | - Yi Mei
- Faculty of Chemical Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-159 2512 8686
- Yunnan Provience Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming City 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Provience Kunming City 650500 China
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23
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Liang Y, Gui W, Yang Z, Cheng K, Zhou X, Yang C, Xu J, Zhou W. Copper-doped perylene diimide supramolecules combined with TiO 2 for efficient photoactivity. RSC Adv 2023; 13:11938-11947. [PMID: 37077265 PMCID: PMC10108381 DOI: 10.1039/d3ra00965c] [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: 02/13/2023] [Accepted: 04/06/2023] [Indexed: 04/21/2023] Open
Abstract
Designing organic-inorganic hybrid semiconductors is an effective strategy for improving the performance of the photocatalyst under visible light irradiation. In this experiment, we firstly introduced Cu into perylenediimide supramolecules (PDIsm) to prepare the novel Cu-dopped PDIsm (CuPDIsm) with one-dimensional structure and then incorporated CuPDIsm with TiO2 to improve the photocatalytic performance. The introduction of Cu in PDIsm increases both the visible light adsorption and specific surface areas. Cu2+ coordination link between adjacent perylenediimide (PDI) moleculars and H-type π-π stacking of the aromatic core greatly accelerate the electron transfer in CuPDIsm system. Moreover, the photo-induced electrons generated by CuPDIsm migrate to TiO2 nanoparticles through hydrogen bond and electronic coupling at the TiO2/CuPDIsm heterojunction, which further accelerates the electron transfer and the separation efficiency of the charge carriers. So, the TiO2/CuPDIsm composites exhibit excellent photodegradation activity under visible light irradiation, reaching the maximum values of 89.87 and 97.26% toward tetracycline and methylene blue, respectively. This study provides new prospects for the development of metal-dopping organic systems and the construction of inorganic-organic heterojunctions, which can effectively enhance the electron transfer and improve the photocatalytic performance.
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Affiliation(s)
- Yu Liang
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Wanrui Gui
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Zhihong Yang
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Kang Cheng
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Xin Zhou
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Can Yang
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Jianmei Xu
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
| | - Wei Zhou
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China +86-27-67884991
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24
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Zheng S, Du H, Yang L, Tan M, Li N, Fu Y, Hao D, Wang Q. PDINH bridged NH 2-UiO-66(Zr) Z-scheme heterojunction for promoted photocatalytic Cr(VI) reduction and antibacterial activity. JOURNAL OF HAZARDOUS MATERIALS 2023; 447:130849. [PMID: 36701978 DOI: 10.1016/j.jhazmat.2023.130849] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/28/2022] [Accepted: 01/20/2023] [Indexed: 06/17/2023]
Abstract
Z-scheme mechanism was a promising approach to considerably enhance photocatalytic activity. In this work, the PDINH/NH2-UiO-66(Zr) (PNU) heterojunctions were made using a facile ball-milling method. As expect, the optimum PNU-1 composite acted as highly active photocatalyst with 97% Cr(VI) to be reduced within 60 min of LED light illumination. Moreover, the antibacterial rate almost reached 100% for E. coli and S. aureus in 4 h, which was more conspicuous than the others. The wider light absorption range, promoted charge separation because of Z-scheme mechanism and efficient generation of reactive 1O2, •O2-, and •OH contributed greatly to the enhanced photocatalytic activity. Meanwhile, the superior stability and repeatability of the composites were also demonstrated by five cyclic experiments and related physicochemical characterizations. Therefore, this work provides a novel insight for designing high-efficiency Z-scheme heterostructures between MOFs and organic PDINH for wastewater remediation.
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Affiliation(s)
- Shuzhen Zheng
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Hao Du
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Lingxuan Yang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Meng Tan
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Ningyi Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yangjie Fu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, 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
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310018, China.
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25
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Qin F, Almatrafi E, Zhang C, Huang D, Tang L, Duan A, Qin D, Luo H, Zhou C, Zeng G. Catalyst-Free Photochemical Activation of Peroxymonosulfate in Xanthene-Rich Systems for Fenton-Like Synergistic Decontamination: Efficacy of Proton Transfer Process. Angew Chem Int Ed Engl 2023; 62:e202300256. [PMID: 36880746 DOI: 10.1002/anie.202300256] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/19/2023] [Accepted: 03/06/2023] [Indexed: 03/08/2023]
Abstract
Catalyst-free visible light assisted Fenton-like catalysis offers opportunities to achieve the sustainable water decontamination, but the synergistic decontamination mechanisms are still unclear, especially the effect of proton transfer process (PTP). The conversion of peroxymonosulfate (PMS) in photosensitive dye-enriched system was detailed. The photo-electron transfer between excited dye and PMS triggered the efficient activation of PMS and enhanced the production of reactive species. Photochemistry behavior analysis and DFT calculations revealed that PTP was the crucial factor to determine the decontamination performance, leading to the transformation of dye molecules. The excitation process inducing activation of whole system was composed of low energy excitations, and the electrons and holes were almost contributed by LUMO and HOMO. This work provided new ideas for the design of catalyst-free sustainable system for efficient decontamination.
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Affiliation(s)
- Fanzhi Qin
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Eydhah Almatrafi
- Centre of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Chen Zhang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Danlian Huang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Lin Tang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Abing Duan
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Deyu Qin
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Hanzhuo Luo
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
| | - Chengyun Zhou
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
- Centre of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Guangming Zeng
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P.R. China
- Centre of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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26
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A review of the antibiotic ofloxacin: current status of ecotoxicology and scientific advances in its removal from aqueous systems by adsorption technology. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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27
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Magnetic pyro-hydrochar derived from waste cartons as an efficient activator of peroxymonosulfate for antibiotic dissipation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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28
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Wu L, Sun C, Jiao S, Hu J, Yang J, Jiao F. Internal Electric-Field-Driven CoAl-LDH Coupled N-Rich Carbon Nitride of C 3N 5 for Improved Photocatalytic Performance. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Lixu Wu
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, P. R. China
| | - Chun Sun
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, P. R. China
| | - Shancheng Jiao
- School of Materials Science and Engineering, Central South University, Changsha410083, P. R. China
| | - Jun Hu
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, P. R. China
| | - Jia Yang
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, P. R. China
| | - Feipeng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, P. R. China
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29
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Ofloxacin Degradation over Nanosized Fe3O4 Catalyst viaThermal Activation of Persulfate Ions. Catalysts 2023. [DOI: 10.3390/catal13020256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
In this work, an Fe3O4 catalyst was synthetized in a single step via electrochemical synthesis. The Fe3O4 catalyst was used to evaluate the degradation of Ofloxacin (OFX) using a heterogeneous advanced oxidation process with sodium persulfate (PS). PS activation was successfully achieved via thermal conventional heating directly and subsequently applied for the degradation of OFX. The degradation kinetics were studied under different conditions, such as catalyst and oxidant concentration and temperature. The results show that a higher reaction temperature, catalyst and initial PS dose strongly influence the degradation efficiency. Thermal activation of persulfate was tested at 20, 40 and 60 °C. At 60 °C, the half-time of OFX was 23 times greater than at 20 °C, confirming the activation of persulfate. Mineralization studies also showed that under optimized conditions (20 mM of persulfate, 1 g/L catalyst and 100 mg/L OFX), a 66% reduction in organic matter was observed, in contrast to that obtained at 40 °C and 20 °C, which was null. The reusability, as tested through the fourth reuse cycle, resulted in a 38% reduced degradation efficiency when comparing the first and last cycle. Furthermore, the electrosynthesized catalyst presented similar degradation efficiencies in both real water and MilliQ, mainly because of the Cl2− generation at high Cl− concentrations that takes place in Cl− contaminated water.
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30
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Li YW, Zhang ZF, Li SZ, Liu LY, Ma WL. Solar-induced efficient propylparaben photodegradation by nitrogen vacancy engineered reticulate g-C 3N 4: Morphology, activity and mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159247. [PMID: 36208767 DOI: 10.1016/j.scitotenv.2022.159247] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/01/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Propylparaben (PrP) has attracted extensive concerns due to its wide occurrence in wastewater and potential health risk. Herein, nitrogen vacancy engineered reticulate g-C3N4 (Nv-RCN) was successfully synthesized for the photodegradation of PrP. Nv-RCN exhibited larger specific surface area, greater light absorption ability, higher transfer and separation efficiency of charge carriers in comparison with bulk g-C3N4 (CN). According to the characterization results and DFT calculation, nitrogen vacancy could capture electrons and facilitate oxygen adsorption. The Nv-RCN exhibited an outstanding PrP removal efficiency of 94.3 %, and the corresponding apparent rate constant of Nv-RCN was 3.37 times higher than that of CN. High O2 concentration (8 mg/L) and low pH value (pH = 3) promoted PrP photodegradation based on Box-Behnken Design. The O2- was the major radical during PCOP of Nv-RCN, and could oxidize PrP by decarbonylation and dealkylation. This study provided new insights to the improvement of photodegradation performance of g-C3N4 for parabens removal and related environmental remediation.
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Affiliation(s)
- Yu-Wei Li
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin 150090, China
| | - Zi-Feng Zhang
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin 150090, China
| | - Shu-Zhi Li
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin 150090, China
| | - Li-Yan Liu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin 150090, China
| | - Wan-Li Ma
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin 150090, China.
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31
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Yang Z, Hu J, Zhang X, Yang H, Meng P, Zhao H, Sun Y. MXene-based composites as an electrochemical sensor for ultrasensitive determination of ofloxacin. Anal Bioanal Chem 2023; 415:157-166. [PMID: 36348040 DOI: 10.1007/s00216-022-04402-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022]
Abstract
Sensitive determination of ofloxacin (OFL) is very essential for human health and environmental protection. Here, a novel composite of gold nanoparticles(nAu)@MXene(Ti3C2Tx)/poly-p-aminobenzene sulfonic acid (PABSA) was fabricated on the surface of glassy carbon electrode (GCE) and used to sensitively determine OFL. The results of experiments showed that the obtained nAu@Ti3C2Tx/PABSA/GCE electrode could be used as an electrochemical sensor to directly detect ofloxacin (OFL) by differential pulse voltammetry (DPV). Under the optimal conditions, the proposed electrode displayed a broader linear range and a lower detection limit (LOD) for OFL determination when it was compared to those similar sensors. The linear range was from 5.0 × 10-8 to 5.0 × 10-4 mol/L and the LOD was 3.7 × 10-8 mol/L (S/N = 3). The nAu@Ti3C2Tx/PABSA/GCE electrode also showed good selectivity, repeatability, and reproducibility. Finally, the proposed electrode was used to detect OFL in commercial samples by the standard addition method. The obtained recovery was from 97.3% and 105.7% showing its potential applications in actual sample analysis.
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Affiliation(s)
- Zuan Yang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China
| | - Jing Hu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China
| | - Xiaoyu Zhang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China
| | - Huimin Yang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China
| | - Peiran Meng
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China
| | - Huanying Zhao
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China
| | - Yue Sun
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China.
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32
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Zhao X, Chen T, Xue Y, Liu J. Reuse of steel slag as a photocatalyst for tetracycline degradation: mechanism of oxygen vacancies. NEW J CHEM 2023. [DOI: 10.1039/d3nj00601h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
High value-added utilization of solid waste steel slag for the photocatalytic degradation of tetracycline is realized by alkali activation.
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Affiliation(s)
- Xin Zhao
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Taiyue Chen
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yu Xue
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiaxiang Liu
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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33
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Ren H, Bi Y, Liu F, Zhang C, Wei N, Fan L, Zhou R. Removal of ofloxacin from wastewater by chloride electrolyte electro-oxidation: Analysis of the role of active chlorine and operating costs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157963. [PMID: 35952871 DOI: 10.1016/j.scitotenv.2022.157963] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/06/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Electro-oxidation (EO) has received increasing attention as an efficient and green method for removing pollutants from wastewater. Chloride anions (Cl-), which commonly exist in wastewater, can act as an electrolyte for the EO process. However, the role of reactive chlorine species (RCS) generated near electrodes is often underestimated. In this study, we generated hydroxyl radicals (OH) and RCS in a boron-doped diamond (BDD) electrode system and investigated its degradation mechanism for ofloxacin (OFX) removal. The findings suggested that OFX degradation was dominated by OH existing near the anode in solution, with RCS playing a supporting role. Based on the produced intermediates, we proposed an OFX decomposition pathway. The biological toxicities of the intermediates were evaluated through the ECOSAR and T.E.S.T. procedure. Nearly half of the intermediates are less toxic than the parent compound. After optimizing the operating parameters by the response surface methodology, 20 mg/L OFX was almost completely degraded after 10 min of reaction in 1.45 g/L NaCl with a current density (j) of 18 mA/cm2, and the total organic carbon was decreased by 30.55 %. The energy consumption and current efficiency were 0.648 kW·h/gTOC and 8.65 %, respectively. Comparing the operating costs of the proposed and other EO methods, our method emerged as a viable new treatment scheme for similar polluted wastewaters. This study aims to comprehensively understand the potential application value of BDD electrodes in the treatment of Cl- containing organic wastewater.
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Affiliation(s)
- Hejun Ren
- Key Laboratory of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, Changchun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China
| | - Yuhang Bi
- Key Laboratory of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, Changchun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China
| | - Fangyuan Liu
- Key Laboratory of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, Changchun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China
| | - Chunpeng Zhang
- Key Laboratory of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, Changchun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China.
| | - Nan Wei
- Chinese Academy of Environmental Planning, Beijing 100012, China
| | - Lujian Fan
- Key Laboratory of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Water Resource and Environment, Jilin University, Changchun 130021, China
| | - Rui Zhou
- Key Laboratory of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, Changchun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Water Resource and Environment, Jilin University, Changchun 130021, China.
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Wu Y, Jin X, Liu H, Lv W, Liu G. Synergistic effects of boron nitride quantum dots and reduced ultrathin g-C3N4: dual-channel carrier transfer and band structure regulation boost the photodegradation of fluoroquinolone. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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35
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Fang S, Zhang W, Sun K, Tong T, Lim AI, Bao J, Du Z, Li Y, Hu YH. Critical role of tetracycline's self-promotion effects in its visible-light driven photocatalytic degradation over ZnO nanorods. CHEMOSPHERE 2022; 309:136691. [PMID: 36209848 DOI: 10.1016/j.chemosphere.2022.136691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/25/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Zinc oxide (ZnO), which is widely applied for ultraviolet-light driven photocatalysis, has no activity in visible-light photocatalytic process due to its large band gap of ∼3.2 eV. Herein, however, we demonstrated the multiple self-promotion effects of tetracycline as band adjuster, photo-sensitizer, and charge transfer promoter for ZnO nanorods, realizing its visible-light photocatalytic degradation with an excellent removal efficiency up to 91.1% within only 2 h. Besides, the influence of complex realistic factors on this unique process was evaluated together with tests with realistic water matrices. Furthermore, the active species and degradation products were identified. Both acute and developmental toxicities were found to be reduced as the degradation proceeds. These results pave the path for the brand-new self-driven visible-light photocatalysis.
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Affiliation(s)
- Siyuan Fang
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI, 49931, United States
| | - Wei Zhang
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI, 49931, United States
| | - Kai Sun
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Tian Tong
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX, 77204, United States
| | - Aniqa Ibnat Lim
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX, 77204, United States
| | - Jiming Bao
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX, 77204, United States
| | - Zichen Du
- J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX, 77843, United States
| | - Ying Li
- J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX, 77843, United States
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI, 49931, United States.
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36
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Fabricating metal-free Z-scheme heterostructures with nitrogen-deficient carbon nitride for fast photocatalytic removal of acetaminophen. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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37
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Liu Z, Wang Q, Xue Q, Chang C, Wang R, Liu Y, Xie H. Highly efficient detection of ofloxacin in water by samarium oxide and β-cyclodextrin-modified laser-induced graphene electrode. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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38
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Yu Y, Hu X, Li M, Fang J, Leng C, Zhu X, Xu W, Qin J, Yao L, Liu Z, Fang Z. Constructing mesoporous Zr-doped SiO 2 onto efficient Z-scheme TiO 2/g-C 3N 4 heterojunction for antibiotic degradation via adsorption-photocatalysis and mechanism insight. ENVIRONMENTAL RESEARCH 2022; 214:114189. [PMID: 36030911 DOI: 10.1016/j.envres.2022.114189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/17/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Novel modified-TiO2/Zr-doped SiO2/g-C3N4 ternary composite is fabricated via an in-situ grow of porous Zr-SiO2 layer to TiO2/g-C3N4 heterojunction, which exhibits well adsorption-photocatalytic performance under simulated solar light irradiation. The nano-size mesoporous TiO2 are dispersed on the lamellar g-C3N4, and the Zr-SiO2 is in-situ fabricated onto the surface of g-C3N4 sheets. The adsorption occurs on the SiO2 layers, and doping Zr element to SiO2 enhances the adsorption of pollutants, while the photocatalytic reaction occurs on the valence band (VB) of TiO2 and conduction band (CB) of g-C3N4, which gives reactive oxygen species of ∙O2-, h+, and ∙OH for high efficient decomposition of antibiotics, i.e. berberine hydrochloride (98.11%), tetracycline (80.76%), and oxytetracycline (84.84%). The excellent adsorption capacity and Z-scheme photoinduced charge carrier migration behavior endowed the novel material with enhanced berberine hydrochloride (BH) removal in water, which approximately 2.5 and 3.8 folds than that of pure g-C3N4 and sole TiO2, respectively. Three degradation pathways are unraveled by LC-MS and theoretical calculations. Furthermore, the toxicity of intermediates was evaluated by the Toxicity Estimation Software Tool (T.E.S.T.), the result demonstrated a good application potential of M-TiO2/Zr-SiO2/g-C3N4 as an novel adsorptive photocatalyst.
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Affiliation(s)
- Yutang Yu
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Xingyu Hu
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Meng Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Jianzhang Fang
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou, 510006, China.
| | - Chengmeng Leng
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Ximiao Zhu
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Weicheng Xu
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Jingjun Qin
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Lang Yao
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Zhang Liu
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Zhanqiang Fang
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou, 510006, China
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Singla S, Basu S, Devi P. Solar light responsive 2D/2D BiVO4/SnS2 nanocomposite for photocatalytic elimination of recalcitrant antibiotics and photoelectrocatalytic water splitting with high performance. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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Chen X, Wang P, Peng F, Zhou Z, Waigi MG, Ling W. Ce(Ⅲ) activates peroxymonosulfate for the degradation of substituted PAHs. CHEMOSPHERE 2022; 306:135525. [PMID: 35779682 DOI: 10.1016/j.chemosphere.2022.135525] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/16/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Substituted polycyclic aromatic hydrocarbons (SPAHs) are being intensively investigated, considering their high toxicity. Additionally, the mechanism of the effect of substituents on the removal of SPAHs and the activation of Ce(III) ions on peroxymonosulfate (PMS) have not been explored. Here we evaluated the removal efficiency of SPAHs in the oxidation system constructed by Ce(Ⅲ) ions and PMS, with emphasized the effect of substituents on SPAHs degradation. Ce(Ⅲ) has high catalytic performance for PMS, and the degradation percentage of all pollutants was higher than 92%. The significantly negative correlation between the reaction rate constants of SPAHs and the highest occupied molecular orbital-the lowest unoccupied molecular orbital gap, confirms that substituents lead to the differences in the degradation of SPAHs. The generation of reactive oxygen species (SO4•-, •OH, and 1O2) is based on the electron transfer between Ce(Ⅲ) and PMS, and the contribution of ROS to substituted naphthalene varies due to the role of substituents. The Ce(Ⅳ)/Ce(Ⅲ) cycle accelerates the activation of PMS. Based on the transformation products and condensed Fukui function, the possible degradation pathways are inferred. In addition, inorganic anions and organic matter have little effect on the Ce(Ⅲ)/PMS system, which is a prerequisite for applying this system to real-world waste-water for SPAHs removal. This work demonstrates a new model of the degradation mechanism of SPAHs in the Ce(Ⅲ)/PMS system.
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Affiliation(s)
- Xuwen Chen
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Peixin Wang
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fei Peng
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhou Zhou
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Michael Gatheru Waigi
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wanting Ling
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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41
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Zhang S, Wang Z, Yao L, Shi L. Preparation of perylene diimide modified AgCl photocatalyst and its photocatalytic performance for degrading various organic pollutants under visible light. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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42
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Cai T, Teng Z, Wen Y, Zhang H, Wang S, Fu X, Song L, Li M, Lv J, Zeng Q. Single-atom site catalysts for environmental remediation: Recent advances. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129772. [PMID: 35988491 DOI: 10.1016/j.jhazmat.2022.129772] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Single-atom site catalysts (SACs) can maximize the utilization of active metal species and provide an attractive way to regulate the activity and selectivity of catalytic reactions. The adjustable coordination configuration and atomic structure of SACs enable them to be an ideal candidate for revealing reaction mechanisms in various catalytic processes. The minimum use of metals and relatively tight anchoring of the metal atoms significantly reduce leaching and environmental risks. Additionally, the unique physicochemical properties of single atom sites endow SACs with superior activity in various catalytic processes for environmental remediation (ER). Generally, SACs are burgeoning and promising materials in the application of ER. However, a systematic and critical review on the mechanism and broad application of SACs-based ER is lacking. Herein, we review emerging studies applying SACs for different ERs, such as eliminating organic pollutants in water, removing volatile organic compounds, purifying automobile exhaust, and others (hydrodefluorination and disinfection). We have summarized the synthesis, characterization, reaction mechanism and structural-function relationship of SACs in ER. In addition, the perspectives and challenges of SACs for ER are also analyzed. We expect that this review can provide constructive inspiration for discoveries and applications of SACs in environmental catalysis in the future.
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Affiliation(s)
- Tao Cai
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Zhenzhen Teng
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yanjun Wen
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Huayang Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - Xijun Fu
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Lu Song
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Mi Li
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Junwen Lv
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Qingyi Zeng
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China.
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43
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Swedha M, Okla MK, Al-Amri SS, Alaraidh IA, Al-Ghamdi AA, Mohebaldin A, Abdel-Maksoud MA, Aufy M, Studenik CR, Thomas AM, Raju LL, Khan SS. Green synthesis of two-electron centre based ZnO/NiCo 2S 4 QDs-OVs using Punica granatum fruit peel extract for an exceptional visible light photocatalytic degradation of doxycycline and ciprofloxacin. CHEMOSPHERE 2022; 304:135225. [PMID: 35697102 DOI: 10.1016/j.chemosphere.2022.135225] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Biosynthesis of nanomaterials using plant extract makes them attractive in the field of photocatalysis as they are environmental friendly. The current study focused on the biosynthesis of ZnO/NiCo2S4 QDs (NCs) using Punica granatum fruit peel extract as the reducing agent. The nanomaterials were characterized with XRD, FTIR, Raman, SEM, TEM, UV-vis DRS, BET, PL, EIS, and ESR analysis and were used for photocatalytic degradation of doxycycline (DOX) and ciprofloxacin (CIP). The bandgap of ZnO is 3.2 eV, and the decoration of NiCo2S4 QDs aids in narrowing the bandgap (2.8 eV), making the NCs visible light active. The fabricated NCs achieved 99 and 89% degradation of DOX and CIP respectively. The photocatalytic efficiency of ZnO/NiCo2S4 QDs was much higher compared to individual ZnO and NiCo2S4 QDs. The half-life period of DOX and CIP were evaluated to be 58 and 152 min respectively. The percentage of TOC removal in the photodegraded product of DOX and CIP was estimated to be 99 and 89% respectively, indicating the mineralization of the compounds. The enhanced photocatalytic efficiency of the NCs was attributed to the narrowed visible light active bandgap, synergistic charge transfer across the interface, and lower charge recombination. The intermediates formed during the photocatalytic degradation of DOX and CIP were analyzed using GC-MS/MS analysis, and the photodegradation pathway was elucidated. Also, the toxicity of the intermediates was computationally analyzed using ECOSAR software. The fabricated ZnO/NiCo2S4 QDs have excellent stability and reusability, confirmed by XRD and XPS analysis. The reusable efficiency of the NCs for the photocatalytic degradation of DOX and CIP were 98.93, and 99.4% respectively. Thus, the biologically fabricated NCs are shown to be an excellent photocatalyst and have wide applications in environmental remediation.
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Affiliation(s)
- M Swedha
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Mohammad K Okla
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Saud S Al-Amri
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ibrahim A Alaraidh
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah A Al-Ghamdi
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Asmaa Mohebaldin
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mostafa A Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohammed Aufy
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Austria
| | - Christian R Studenik
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Austria
| | - Ajith M Thomas
- Department of Botany and Biotechnology, St Xavier's College, Thumba, Thiruvananthapuram, India
| | - Lija L Raju
- Department of Zoology, Mar Ivanios College, Nalanchira, Thiruvananthapuram, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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Li X, Yu G, Wang Y. Enhancing hydroxyl radical production from cathodic ozone reduction during the ozone-electrolysis process with flow-through reactive electrochemical membrane cathode. CHEMOSPHERE 2022; 303:135020. [PMID: 35605727 DOI: 10.1016/j.chemosphere.2022.135020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/02/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
In this study, a flow-through ozone-electrolysis (O3-electrolysis) process was developed by combining ozonation with an electrolysis using a porous reactive electrochemical membrane (REM) cathode. Due to the convection-enhanced mass transport and fast radial diffusion inside the small pores of REM cathodes, the rate of cathodic O3 reduction to ozonide radicals (O3•-) was significantly enhanced, while the further cathodic O3•- reduction to oxygen was inhibited during the flow-through O3-electrolysis process compared to the conventional mixed-tank O3-electrolysis process. Consequently, more hydroxyl radicals (•OH) were formed from O3•- decay in water during the flow-through O3-electrolysis process than the mixed-tank O3-electrolysis process. Corresponding to the higher •OH yields from cathodic O3 reduction, the flow-through O3-electrolysis process substantially enhanced the abatement kinetics and efficiency of para-benzoic acid (pCBA, a model compound of ozone-resistant micropollutant) in a groundwater than conventional ozonation and the mixed-tank O3-electrolysis process. These results suggest that the flow-through O3-electrolysis process may provide a competitive treatment technology for micropollutant abatement in water treatment.
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Affiliation(s)
- Xiangyu Li
- School of Environment, Beijing Key Laboratory for Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China
| | - Gang Yu
- School of Environment, Beijing Key Laboratory for Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China
| | - Yujue Wang
- School of Environment, Beijing Key Laboratory for Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China.
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45
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Self-assembled perylene diimide modified NH2-UiO-66 (Zr) construct n-n heterojunction catalysts for enhanced Cr (VI) photocatalytic reduction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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46
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Fan G, Cai C, Yang S, Du B, Luo J, Chen Y, Lin X, Li X, Wang Y. Sonophotocatalytic degradation of ciprofloxacin by Bi2MoO6/FeVO4 heterojunction: Insights into performance, mechanism and pathway. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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47
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Yin N, Chen H, Yuan X, Zhang Y, Zhang M, Guo J, Zhang Y, Qiao L, Liu M, Song K. Highly efficient photocatalytic degradation of norfloxacin via Bi 2Sn 2O 7/PDIH Z-scheme heterojunction: Influence and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129317. [PMID: 35739807 DOI: 10.1016/j.jhazmat.2022.129317] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/23/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
The severe pollution caused by antibiotics has prompted considerable concerns in recent decades. In this study, the Bi2Sn2O7/PDIH Z-scheme heterojunction photocatalyst was synthesized and highly photocatalytic activity on norfloxacin was obtained. The degradation of norfloxacin reached 98.71% in 90 min under visible light. The apparent rate constant of norfloxacin (0.4 903 min-1) was 3.65 and 20 times that of PDIH and the Bi2Sn2O7. Meanwhile, XPS, electrochemical, Photoluminescence spectroscopy and electron paramagnetic resonance results showed that Z-scheme charge-transfer process facilitated the spatial carrier separation and preserve redox capability. Furthermore, the degradation intermediates of norfloxacin and their toxicities were evaluated. Finally, in the view of the survey about the impact of different water matrices, it was found that the Bi2Sn2O7/PDIH maintained high efficiency in raw natural water. This work enriched inorganic/organic heterojunction engineering for PDIH, and provided the enormous potential for combining the Bi2Sn2O7 with PDIH to address the antibiotic pollution issues in the actual water treatment.
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Affiliation(s)
- Nian Yin
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Haoyun Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
| | - Yi Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
| | - Mingjuan Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Jiayin Guo
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Yuanyuan Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Lu Qiao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Mengsi Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Kexin Song
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
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48
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Efficient Z-scheme g-C3N4/MoO3 heterojunction photocatalysts decorated with carbon quantum dots: improved visible-light absorption and charge separation. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04804-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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49
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Liu J, Li H, Zhang J, Shen Z. Boosting the photocatalytic activation of molecular oxygen and photodegradation of tetracycline: The role of interfacial synergistic effect of cocatalyst and dopants. J Colloid Interface Sci 2022; 628:637-648. [PMID: 36027774 DOI: 10.1016/j.jcis.2022.08.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/01/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022]
Abstract
Utilizing reactive oxygen species (ROS), which are generated by the activation of molecular oxygen (O2) in oxidation reaction, is a promising method for pollutant degradation. However, it is limited by the commonly low efficiency of O2 activation and carrier separation. Herein, as a model system, Ag cocatalyst and Cl doping modified g-C3N4 (Ag/Cl-CN) was constructed to improve the ability of O2 activation. Results showed that Ag/Cl-CN could effectively convert more O2 into ROS than pristine g-C3N4 (CN), and individually decorated CN (Ag-CN and Cl-CN). A series of experiments and DFT calculations revealed that the deposition of Ag could promote charge separation resulting in more charges accumulated around O2 and the introduction of Cl led to a stronger adsorption capacity for O2. Therefore, due to the synergistic effect of Ag cocatalyst and Cl dopant, Ag/Cl-CN generated higher concentrations of O2- and displayed much better activity for photocatalytic degradation of tetracycline (TC) than CN, Ag-CN and Cl-CN.
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Affiliation(s)
- Jiajia Liu
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hui Li
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jun Zhang
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Zhurui Shen
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
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50
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Bai X, Guo L, Jia T, Hao D, Wang C, Li H, Zong R. Perylene diimide growth on both sides of carbon nanotubes for remarkably boosted photocatalytic degradation of diclofenac. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:128992. [PMID: 35489317 DOI: 10.1016/j.jhazmat.2022.128992] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/07/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Perylene diimide and its derivatives are promising photocatalysts for clean and efficient production, but their practical application in the field of photocatalysis is still limited by the rapid photogenerated charge recombination. In this work, the confined photocatalysts were synthesized by using a gas-phase self-assembly method and comparing the morphology and photocatalytic properties of different photocatalysts after the confinement of carbon nanotubes. The confinement effect of carbon nanotubes acts to stabilize perylene diimide. Electrostatic interaction formed by a wide range of dispersion forces is dominant in the process of stabilization. Benefitting from the three-dimensional electron transfer pathway formed by the conjugation of perylene diimide with a large number of π electrons to the carbon nanotubes plane, the confined photocatalyst shows the pseudo-first-order kinetic constant k of 1.106 h-1 for the photocatalytic degradation of diclofenac under light, which is 6.11 times higher than that of perylene diimide. The electron transfer created an internal electric field at the interface from carbon nanotubes to perylene diimide, which greatly accelerated the separation of photogenerated electron-hole pairs and improved the photocatalytic activity. This study further expands the applicability of perylene diimide in the field of photocatalysis and provides a new approach for water environment treatment.
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Affiliation(s)
- Xiaojuan Bai
- Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing 100044, China; Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Linlong Guo
- Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing 100044, China
| | - Tianqi Jia
- Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing 100044, China
| | - Derek Hao
- Centre for Catalysis and Clean Energy, Gold Coast Campus, Griffith University, Gold Coast 4222, Australia.
| | - Cong Wang
- Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing 100044, China
| | - Haiyan Li
- Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing 100044, China
| | - Ruilong Zong
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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