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Alrozi R, Zubir NA, Bakar NFA, Ladewig BP, Motuzas J, Bakar NHHA, Wang DK, da Costa JCD. Functional role of B-site substitution on the reactivity of CaMFeO3 (M = Cu, Mo, Co) perovskite catalysts in heterogeneous Fenton-like degradation of organic pollutant. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Murrieta MF, Brillas E, Nava JL, Sirés I. Solar photoelectro-Fenton-like process with anodically-generated HClO in a flow reactor: Norfloxacin as a pollutant with a particular structure. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Zhang J, Luo M, Zhang D, Feng R, Jia Y, Meng J, Yang S. Hydrolysis of norfloxacin in the hyporheic zone: kinetics and pathways. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82481-82491. [PMID: 35752671 DOI: 10.1007/s11356-022-21541-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Understanding the hydrolysis behavior and pathway of norfloxacin (NOR) in the hyporheic zone (HZ) is important for predicting its environmental persistence. Therefore, the effects of different environmental factors on NOR hydrolysis were investigated, and the hydrolysis pathway of NOR in the HZ was determined by DFT calculations and UPLC/TOF-MS. The hydrolysis process of NOR was consistent with the first-order kinetic. The experiment of environmental factors showed that DO was an important factor to affect NOR hydrolysis, and its hydrolysis rate was positively correlated with DO concentration. The superoxide radical (·O2-) was the main active species for NOR hydrolysis. The hydrolysis rates of NOR under neutral and alkaline conditions were higher than that under acidic conditions in both aerobic and anoxic environments. The ions of Ca2+, Mg2+, HCO3-, CO32-, and NO3- in simulated water samples inhibited the hydrolysis of NOR, while Cl- promoted its hydrolysis. In addition, the electronegativity of NOR was determined by DFT calculations, and it was speculated that the active sites of NOR hydrolysis were mainly located in the piperazine ring and quinolone ring. The main hydrolysis pathway of NOR in aerobic environment was piperazine ring cracking and quinolone ring decomposition, and that in anoxic environment was piperazine ring cracking. The results are of great significance to evaluate the environmental fate of NOR in the HZ and provide a theoretical basis for further understanding the degradation and governance of fluoroquinolones in water environment.
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Affiliation(s)
- Jianping Zhang
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, 710054, China
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
| | - Mengya Luo
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, 710054, China
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
| | - Dan Zhang
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, 710054, China
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
| | - Ruyi Feng
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, 710054, China
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
| | - Yang Jia
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, 710054, China
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
| | - Junsheng Meng
- China Jikan Research Institute of Engineering Investigations and Design Co, LTD, Xi'an, 710000, China
| | - Shengke Yang
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, 710054, China.
- School of Water and Environment, Chang'an University, Xi'an, 710054, China.
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Feng J, Pan L, Liu H, Yuan S, Zhang L, Yin H, Song H, Li L. Synergistic degradation of the aqueous antibiotic norfloxacin by nonthermal plasma combined with defective titanium dioxide exposed {0 0 1} facets. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Sar AB, Shabani EG, Haghighi M, Shabani M. Synergistic catalytic degradation of ciprofloxacin using magnetic carbon nanomaterial/NiFe2O4 promoted cold atmospheric pressure plasma jet: Influence of charcoal, multi walled carbon nanotubes and walnut shell. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Zhang Y, Chu W. Bisphenol S degradation via persulfate activation under UV-LED using mixed catalysts: Synergistic effect of Cu-TiO 2 and Zn-TiO 2 for catalysis. CHEMOSPHERE 2022; 286:131797. [PMID: 34426121 DOI: 10.1016/j.chemosphere.2021.131797] [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: 05/24/2021] [Revised: 07/22/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
A photocatalyst composed of Zn-TiO2 and Cu-TiO2 through simple physical mixing was used to activate persulfate(PS) for Bisphenol S (BPS) degradation. Zn-TiO2 and Cu-TiO2 were prepared with a sol gel method and were characterized by X-ray diffraction (XRD), Raman, Transmission electron microscope (TEM), Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The two catalysts have shown an obvious synergistic effect in the photocatalytic degradation process. When 5 mM persulfate and 0.3 g/L catalyst were used, the removal rate of mixed catalyst (0.2 g/L Zn-TiO2 and 0.1 g/L Cu-TiO2) is 100 % in 18 min, which is significantly better than that of 0.3 g/L Zn-TiO2(58 %) and 0.3 g/L Cu-TiO2(90 %). Typically, the effects of various operation parameters, including the ratio of Cu-TiO2/Zn-TiO2, catalyst dosage, persulfate dosage, initial concentration of BPS, and initial solution pH, were examined. Reactive oxygen species (ROS) in the UV/mixed catalyst/PS process was identified by scavenger and electron paramagnetic resonance (EPR) tests. The superoxide radicals generated by both Zn-TiO2 and the hydrolysis of persulfate in the system could accelerate the Cu (II)/Cu(I) redox cycles and results in the synergistic effect. This study proposed a new and effective way to improve the reaction by simply combining two catalysts, and unraveled the mechanism behind the synergistic effect, which could provide new ideas to use the catalyst more effectively for wastewater treatment or other areas.
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Affiliation(s)
- Yanlin Zhang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Wei Chu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
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Bilal M, Rizwan K, Adeel M, Iqbal HM. Hydrogen-based catalyst-assisted advanced oxidation processes to mitigate emerging pharmaceutical contaminants. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2021. [DOI: 10.1016/j.ijhydene.2021.11.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Dong W, Yang C, Zhang L, Su Q, Zou X, Xu W, Gao X, Xie K, Wang W. Highly efficient UV/H2O2 technology for the removal of nifedipine antibiotics: Kinetics, co-existing anions and degradation pathways. PLoS One 2021; 16:e0258483. [PMID: 34710109 PMCID: PMC8553136 DOI: 10.1371/journal.pone.0258483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/28/2021] [Indexed: 11/24/2022] Open
Abstract
This study investigates the degradation of nifedipine (NIF) by using a novel and highly efficient ultraviolet light combined with hydrogen peroxide (UV/H2O2). The degradation rate and degradation kinetics of NIF first increased and then remained constant as the H2O2 dose increased, and the quasi-percolation threshold was an H2O2 dose of 0.378 mmol/L. An increase in the initial pH and divalent anions (SO42- and CO32-) resulted in a linear decrease of NIF (the R2 of the initial pH, SO42- and CO32- was 0.6884, 0.9939 and 0.8589, respectively). The effect of monovalent anions was complex; Cl- and NO3- had opposite effects: low Cl- or high NO3- promoted degradation, and high Cl- or low NO3- inhibited the degradation of NIF. The degradation rate and kinetics constant of NIF via UV/H2O2 were 99.94% and 1.45569 min-1, respectively, and the NIF concentration = 5 mg/L, pH = 7, the H2O2 dose = 0.52 mmol/L, T = 20 ℃ and the reaction time = 5 min. The ·OH was the primary key reactive oxygen species (ROS) and ·O2- was the secondary key ROS. There were 11 intermediate products (P345, P329, P329-2, P315, P301, P274, P271, P241, P200, P181 and P158) and 2 degradation pathways (dehydrogenation of NIF → P345 → P274 and dehydration of NIF → P329 → P315).
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Affiliation(s)
- Wenping Dong
- Shandong Academy of Environmental Science Co., Ltd., Jinan, China
- Shandong Huankeyuan Environmental Engineering Co., Ltd., Jinan, China
| | - Chuanxi Yang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, China
| | - Lingli Zhang
- Hi-tech Science Park Branch of Weihai Municipal Bureau of Ecological Environment, Weihai, China
| | - Qiang Su
- Shandong Academy of Environmental Science Co., Ltd., Jinan, China
- Shandong Huankeyuan Environmental Engineering Co., Ltd., Jinan, China
| | - Xiaofeng Zou
- Shandong Academy of Environmental Science Co., Ltd., Jinan, China
- Shandong Huankeyuan Environmental Engineering Co., Ltd., Jinan, China
| | - Wenfeng Xu
- Shandong Think-eee Environmental Technology Co., Ltd., Jinan, China
| | - Xingang Gao
- Qingdao Jiaming Measurement and Control Technology Co., Ltd., Qingdao, China
| | - Kang Xie
- School of Civil Engineering and Architecture, University of Jinan, Jinan, China
| | - Weiliang Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, China
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Yang CX, Zhu Q, Dong WP, Fan YQ, Wang WL. Preparation and Characterization of Phosphoric Acid-Modified Biochar Nanomaterials with Highly Efficient Adsorption and Photodegradation Ability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9253-9263. [PMID: 34286996 DOI: 10.1021/acs.langmuir.1c01468] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Phosphoric acid-modified biochar (PMBC) was prepared using biochar (BC) as the carbon source and phosphoric acid as the activating agent. The PMBC exhibited an ordered vessel structure after deashing treatment, but the sidewalls became much rougher, the polarity (O/C atomic ratio of BC = 0.2320 and O/C atomic ratio of PMBC = 0.1604) decreased, and the isoelectric points (PI of BC = 5.22 and PI of PMBC = 5.51) and specific surface area (SSA of BC = 55.322 m2/g and SSA of PMBC = 62.285 m2/g) increased. The adsorption characterization of the removal of sulfadiazine (SDZ) from PMBC was studied. The adsorption of SDZ by PMBC was in accordance with the Langmuir isotherm model and the pseudo-second-order kinetics model, and the adsorption thermodynamics were shown as Gibbs free energy < 0, an enthalpy change of 19.157 kJ/mol, and an entropy change of 0.0718 kJ/(K·mol). The adsorption of SDZ by PMBC was a complicated monolayer adsorption that was spontaneous, irreversible, and endothermic, and physical adsorption and chemical adsorption occurred simultaneously. The adsorption process was controlled by microporous capture, electrostatic interactions, hydrogen-bond interactions, and π-π interactions. PMBC@TiO2 photocatalysts with different mass ratios between TiO2 and PMBC were prepared via the in situ sol-gel method. PMBC@TiO2 exhibited both an ordered vessel structure (PMBC) and irregular particles (TiO2), and it was linked via Ti-O-C bonds. The optimal mass ratio between TiO2 and PMBC was 3:1. The removal of SDZ via PMBC@TiO2 was dependent on the coupling of adsorption and photocatalysis. The PMBC-enhanced photocatalytic performance of PMBC@TiO2 resulted in a higher absorption of UV and visible light, greater generation of reactive oxygen species, high levels of adsorption of SDZ on PMBC, and the conjugated structure and oxygen-containing functional groups that promoted the separation efficiency of the hole-electron pairs.
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Affiliation(s)
- Chuan Xi Yang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Qing Zhu
- Shandong Research Center of Statistical Analysis of Science and Technology, Jinan 250101, China
| | - Wen Ping Dong
- Shandong Academy of Environmental Science Co., Ltd., Jinan 250013, China
- Shandong Huankeyuan Environmental Engineering Co., Ltd., Jinan 250013, China
| | - Yu Qi Fan
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, China
| | - Wei Liang Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China
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Li Y, Wang X, Wang X, Xia Y, Zhang A, Shi J, Gao L, Wei H, Chen W. Z-scheme BiVO4/g-C3N4 heterojunction: an efficient, stable and heterogeneous catalyst with highly enhanced photocatalytic activity towards Malachite Green assisted by H2O2 under visible light. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126445] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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