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Temperature and anion ligand field dependence of LnCl3 (Ln = Nd, Dy, Sm) electronic absorption spectra in LiCl–KCl eutectic molten salt. PROGRESS IN NUCLEAR ENERGY 2023. [DOI: 10.1016/j.pnucene.2023.104584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Tang F, Wang Y, Li J, Sun S, Su Y, Chen H, Cui W, Zhao C, Liu Q. Pollution characteristics of groundwater in an agricultural hormone-contaminated site and implementation of Fenton oxidation process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:35670-35682. [PMID: 36538219 DOI: 10.1007/s11356-022-24734-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
The groundwater polluted by an agricultural hormone site was taken as the research object, and a total of 7 groundwater samples were collected at different locations in the plant. The main pollutants in the research area were determined to be extractable petroleum hydrocarbons (C10-C40); 1,2-dichloroethane; 1,1,2-trichloroethane; carbon tetrachloride; vinyl chloride, and chloroform; the maximum content of these pollutants can reach 271 mg/L, 1.68 × 107 µg/L, 1.56 × 104 µg/L, 9.53 × 104 µg/L, 6.58 × 104 µg/L, and 4.81 × 104 µg/L, respectively. Aiming at the problems of groundwater pollution in this area, two sets of oxidation experiments have been carried out. The addition of NaHSO3 modified Fenton oxidation system was used in this contaminated water, which enhanced (2.2 ~ 46.7%) chemical oxygen demand (COD) removal rate. The highest removal rate of extractable petroleum hydrocarbons (C10-C40) can reach 99%. And the degradation rate of chlorinated hydrocarbon pollutants can reach 99% to 100%, which almost achieved the purpose of complete removal. In the NaHSO3 modified Fenton oxidation system, the addition of NaHSO3 accelerates the cycle of Fe3+/Fe2+ and ensures the continuous existence of Fe2+ in the reaction system, thereby producing more ·OH and further oxidizing and degrading organic pollutants. Our work has provided important insights for this economically important treatment of this type water body and laid the foundation for the engineering of this method.
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Affiliation(s)
- Fang Tang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Yaru Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Jing Li
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Shuo Sun
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Yuhua Su
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Hongxu Chen
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Wu Cui
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Chaocheng Zhao
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China
| | - Qiyou Liu
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Huangdao District, No. 66 Changjiang West Road, Qingdao, 266580, People's Republic of China.
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, China.
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Gayathiri E, Prakash P, Selvam K, Awasthi MK, Gobinath R, Karri RR, Ragunathan MG, Jayanthi J, Mani V, Poudineh MA, Chang SW, Ravindran B. Plant microbe based remediation approaches in dye removal: A review. Bioengineered 2022; 13:7798-7828. [PMID: 35294324 PMCID: PMC9208495 DOI: 10.1080/21655979.2022.2049100] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/17/2022] [Accepted: 03/01/2022] [Indexed: 02/06/2023] Open
Abstract
Increased industrialization demand using synthetic dyes in the newspaper, cosmetics, textiles, food, and leather industries. As a consequence, harmful chemicals from dye industries are released into water reservoirs with numerous structural components of synthetic dyes, which are hazardous to the ecosystem, plants and humans. The discharge of synthetic dye into various aquatic environments has a detrimental effect on the balance and integrity of ecological systems. Moreover, numerous inorganic dyes exhibit tolerance to degradation and repair by natural and conventional processes. So, the present condition requires the development of efficient and effective waste management systems that do not exacerbate environmental stress or endanger other living forms. Numerous biological systems, including microbes and plants, have been studied for their ability to metabolize dyestuffs. To minimize environmental impact, bioremediation uses endophytic bacteria, which are plant beneficial bacteria that dwell within plants and may improve plant development in both normal and stressful environments. Moreover, Phytoremediation is suitable for treating dye contaminants produced from a wide range of sources. This review article proves a comprehensive evaluation of the most frequently utilized plant and microbes as dye removal technologies from dye-containing industrial effluents. Furthermore, this study examines current existing technologies and proposes a more efficient, cost-effective method for dye removal and decolorization on a big scale. This study also aims to focus on advanced degradation techniques combined with biological approaches, well regarded as extremely effective treatments for recalcitrant wastewater, with the greatest industrial potential.
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Affiliation(s)
- Ekambaram Gayathiri
- Department of Plant Biology and Plant Biotechnology, Guru Nanak College (Autonomous), Chennai - 600 042, India
| | - Palanisamy Prakash
- Department of Botany, Periyar University, Periyar Palkalai Nagar, Salem636011, India
| | - Kuppusamy Selvam
- Department of Botany, Periyar University, Periyar Palkalai Nagar, Salem636011, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road 3#, Yangling, Shaanxi712100, PRChina
| | | | - Rama Rao Karri
- Faculty of Engineering, University Teknologi, Brunei, Asia
| | | | - Jayaprakash Jayanthi
- Department of Advanced Zoology and Biotechnology, Guru Nanak College, Chennai, India
| | - Vimalraj Mani
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju54874, Korea
| | | | - Soon Woong Chang
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon16227, Republic of Korea
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon16227, Republic of Korea
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Bisphenol-S removal via photoelectro-fenton/H2O2 process using Co-porphyrin/Printex L6 gas diffusion electrode. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120299] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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El-Mahalawy AM, Abdou MM, Wassel AR. Structural, spectroscopic and electrical investigations of novel organic thin films bearing push-pull azo - Phenol dye for UV photodetection applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119243. [PMID: 33310615 DOI: 10.1016/j.saa.2020.119243] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/04/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
In the current study, novel thin films of a phenol-based push-pull azo dye, 2-acetyl-4-(4-chloro-phenylazo) phenol (ACAP), with tunable optical and electronic properties were designed, synthesized and characterized for UV photodetection applications. The crystalline structure and morphological features of the thermally evaporated ACAP thin films are investigated. The fabricated thin films exhibit an amorphous-like structure with low-intensity crystalline regions of average crystallite size of about 29.51 nm and a smooth surface with nanostructured sheets formation. The optical transmittance, reflectance, and absorption of ACAP thin films are measured in the spectral range UV-vis-NIR. A significant high UV absorption extending from 190 nm to 385 nm is observed with semi-transparency nature in the visible region. Furthermore, a good agreement is obtained between the estimated value of the direct energy gap that is obtained experimentally (3.62 eV) and that calculated from the theoretical DFT approach (3.74 eV). The dispersion behavior is analyzed in terms of the single oscillator model and is employed to estimate the dispersion parameters. Finally, an organic/inorganic heterojunction device based on Au/ACAP/n-Si/Al for UV photodetection is successfully fabricated. The current-voltage relations of the manufactured photodetector showed significant stability and sensitivity to the incident UV illumination. The fabricated UV photodetector exhibits responsivity ~25.7 mA/W, specific detectivity ~2 × 109 Jones, efficiency ~16.74%, a fast and reproducible ON/OFF switching behavior with 480 ms and 218 ms rise and fall time, respectively.
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Affiliation(s)
- Ahmed M El-Mahalawy
- Thin Films Laboratory, Physics Department, Faculty of Science, Suez Canal University, 41522 Ismailia, Egypt.
| | - Moaz M Abdou
- Egyptian Petroleum Research Institute, P.O. 11727, Nasr City, Cairo, Egypt
| | - Ahmed R Wassel
- Electron Microscope and Thin Films Department, Physics Research Division, National Research Centre, 33El - Behouth St., Dokki, 12622 Giza, Egypt
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Varjani S, Rakholiya P, Ng HY, You S, Teixeira JA. Microbial degradation of dyes: An overview. BIORESOURCE TECHNOLOGY 2020; 314:123728. [PMID: 32665105 DOI: 10.1016/j.biortech.2020.123728] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 05/21/2023]
Abstract
Industrialization increases use of dyes due to its high demand in paper, cosmetic, textile, leather and food industries. This in turn would increase wastewater generation from dye industrial activities. Various dyes and its structural compounds present in dye industrial wastewater have harmful effects on plants, animals and humans. Synthetic dyes are more resistant than natural dyes to physical and chemical methods for remediation which makes them more difficult to get decolorize. Microbial degradation has been researched and reviewed largely for quicker dye degradation. Genetically engineered microorganisms (GEMs) play important role in achieving complete dye degradation. This paper provides scientific and technical information about dyes & dye intermediates and biodegradation of azo dye. It also compiles information about factors affecting dye(s) biodegradation, role of genetically modified organisms (GMOs) in process of dye(s) degradation and perspectives in this field of research.
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Affiliation(s)
- Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Parita Rakholiya
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India; Kadi Sarva Vishwavidyalaya, Gandhinagar, Gujarat 382015, India
| | - How Yong Ng
- National University of Singapore Environmental Research Institute, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Jose A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710057 Braga, Portugal
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Liang R, Tang F, Wang J, Yue Y. Photo-degradation dynamics of five neonicotinoids: Bamboo vinegar as a synergistic agent for improved functional duration. PLoS One 2019; 14:e0223708. [PMID: 31622381 PMCID: PMC6797178 DOI: 10.1371/journal.pone.0223708] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/26/2019] [Indexed: 11/18/2022] Open
Abstract
The effects of photo-degradation on the utilization of pesticides in agricultural production has been investigated. Various influencing factors were compared, with results showing that the initial pesticide concentration, light source, water quality and pH possessed different effects on neonicotinoids photo-degradation. The initial concentration and pH were found to be most critical effects. The photo-degradation rate decreased by a factor of 2-4 when the initial concentration increased from 5 mg L-1 to 20 mg L-1, particularly for acetamiprid and imidacloprid. The photo-degradation pathways and products of the five neonicotinoids were also investigated, with similar pathways found for each pesticide, except for acetamiprid. Degradation pathways mainly involved photo-oxidation processes, with products identified using liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS) found to be consistent with literature reported results. Bamboo vinegar exerted a photo-quenching effect on the neonicotinoids, with an improved efficiency at higher vinegar concentrations. The photo-quenching rates of thiamethoxam and dinotefuran were 381.58% and 310.62%, respectively, when a 30-fold dilution of vinegar was employed. The photo-degradation products in bamboo vinegar were identical to those observed in methanol, with acetic acid being the main factor influencing the observed quenching effects.
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Affiliation(s)
- Rui Liang
- School of Resource & Environment, Anhui Agricultural University, Hefei, China
| | - Feng Tang
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing, China
| | - Jin Wang
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing, China
| | - Yongde Yue
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing, China
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Yue S, Ye W, Xu Z. SERS monitoring of the Fenton degradation reaction based on microfluidic droplets and alginate microparticles. Analyst 2019; 144:5882-5889. [PMID: 31497808 DOI: 10.1039/c9an01077g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy as a powerful tool has been used to explore different catalysis degradation reactions, whereas some drawbacks caused by ferric ions still exist in the current SERS monitoring of the Fenton reaction process. In this work, microfluidic droplet- and alginate microparticle-based methods were, respectively, applied to realize SERS monitoring of the Fenton degradation process in a relatively stable environment, which benefited from reduction of the loss of ferrous ions and the aggregation of the SERS substrate. As expected, the spectroscopic evidence at the molecular level directly revealed the degradation mechanism of rhodamine dyes, showing that the chemical bonds between xanthene and carboxybenzene broke continuously during the reaction. Afterward, the degradation mechanism determined by SERS was verified via mass spectrometry detection, which confirmed the validity of the SERS-based method. More broadly, the microfluidic droplet- and microparticle-based methods are potentially applicable for SERS monitoring of more Fenton degradation reactions.
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Affiliation(s)
- Shuai Yue
- Research Center for Analytical Sciences, Northeastern University, Shenyang 110819, P.R. China.
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Li S, Luo P, Wu H, Wei C, Hu Y, Qiu G. Strategies for Improving the Performance and Application of MOFs Photocatalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201900199] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shixiong Li
- School of Environment and EnergySouth China University of Technology Guangzhou 510006 P. R. China
- School of Chemical Engineering and Resource RecyclingWuzhou University Wuzhou 543002 P. R. China
| | - Pei Luo
- School of Environment and EnergySouth China University of Technology Guangzhou 510006 P. R. China
| | - Haizhen Wu
- School of Biology and Biological EngineeringSouth China University of Technology Guangzhou 510006 P. R. China
| | - Chaohai Wei
- School of Environment and EnergySouth China University of Technology Guangzhou 510006 P. R. China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of EducationSouth China University of Technology Guangzhou 510006 P. R. China
| | - Yun Hu
- School of Environment and EnergySouth China University of Technology Guangzhou 510006 P. R. China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of EducationSouth China University of Technology Guangzhou 510006 P. R. China
| | - Guanglei Qiu
- School of Environment and EnergySouth China University of Technology Guangzhou 510006 P. R. China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of EducationSouth China University of Technology Guangzhou 510006 P. R. China
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Guo Y, Xue Q, Zhang H, Wang N, Chang S, Fang Y, Wang H, Yuan F, Pang H, Chen H. Highly efficient treatment of real benzene dye intermediate wastewater by simple limestone and lime neutralization-coagulation with improved Fenton oxidation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:31125-31135. [PMID: 30187411 DOI: 10.1007/s11356-018-3101-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
Multistage Fenton oxidation is a favored method for the treatment of benzene dye intermediate (BDI) wastewater, but the pH adjustments required after each stage of the Fenton process with a simple way is still a challenge. Limestone pretreatment and lime neutralization-coagulation were used to solve the problem in multistage Fenton process. First, we determined the optimal conditions of Fenton oxidation using the Box-Behnken response surface method. Limestone pretreatment before the multistage Fenton process allowed for simultaneous pH adjustment and 14.15% COD removal. Most notably, the lime cream neutralization-coagulation process effectively adjusted the pH after each stage of the Fenton process. The optimum CaO particle size, lime mass fraction, mixing time, and stirring speed were determined by orthogonal tests. COD removal (89.23%) was obtained when lime cream neutralization-coagulation was applied to the three-staged Fenton process, while only 58.57% COD removal was obtained by the unadjusted single-staged Fenton process. The COD and wastewater color were reduced from 10,600 mg/L and 12,200 multiples to 495 mg/L and 20 multiples, respectively, using the adjusted process. This improved method provides a promising cost-effective way to efficiently treat real BDI wastewater.
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Affiliation(s)
- Ying Guo
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Qiang Xue
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China.
| | - Huanzhen Zhang
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Ning Wang
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Simiao Chang
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Youcun Fang
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Hui Wang
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Fang Yuan
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Hao Pang
- Beijing Z.D.H.K. Environmental Science & Technology Co., Ltd., Beijing, 100120, China
| | - Honghan Chen
- Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China.
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