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Wang Q, Hao M, Yu F, Giannakoudakis DA, Sun Y. Enhanced degradation of 2,4-dichlorophenol in groundwater by defective iron-based metal-organic frameworks: Role of SO 3- and electron transfer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 940:173644. [PMID: 38823695 DOI: 10.1016/j.scitotenv.2024.173644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/02/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024]
Abstract
The purposeful formation of crystal defects was regarded as an attractive strategy to enhance the catalytic activity of Fe-MOFs. In this study, the pyrolytic hydrochloric acid-modulated MIL-101-NH2 (P250HMN-2) was fabricated for the first time, and the important role of pyrolysis in the formation of crystal defects was confirmed. PDS was introduced as an enhancer for the P250HMN-2/Na2SO3 system. Without pH adjustment, 99.7 % of 2,4-DCP was removed by the P250HMN-2/Na2SO3/PDS system in 180 min. The catalytic performance of P250HMN-2 improved 2.5-fold than that of MIL-101-NH2. It was found that the high density of Fe-CUSs on P250HMN-2 were the major active sites, which could efficiently react with SO32- to generate ROS through electron transfer. The results of quenching experiments, probe tests, and EPR tests indicated that SO3-, SO4-, 1O2, OH, and SO5- were involved in the 2,4-DCP degradation process, with SO3-, SO4-, and 1O2 playing major roles. Moreover, P250HMN-2 could effectively degrade 2,4-DCP for 148 h in a fixed-bed reactor with excellent stability and reusability, indicating a promising catalyst for practical applications.
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Affiliation(s)
- Qiongyao Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an 710054, China; Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang'an University, Xi'an 710054, China; Department of Environmental Engineering, School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Mingge Hao
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an 710054, China; Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang'an University, Xi'an 710054, China; Department of Environmental Engineering, School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Fangxin Yu
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an 710054, China; Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang'an University, Xi'an 710054, China; Department of Environmental Engineering, School of Water and Environment, Chang'an University, Xi'an 710054, China
| | | | - Yongchang Sun
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an 710054, China; Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang'an University, Xi'an 710054, China; Department of Environmental Engineering, School of Water and Environment, Chang'an University, Xi'an 710054, China.
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Wang Y, Hu X, Chen X, Ren Z, Li Y, Miao J, He Y, Zhang P, Li C, Zhu Q. Potential of metallurgical iron-containing solid waste-based catalysts as activator of persulfate for organic pollutants degradation. CHEMOSPHERE 2024; 359:142276. [PMID: 38761830 DOI: 10.1016/j.chemosphere.2024.142276] [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: 01/12/2024] [Revised: 04/09/2024] [Accepted: 05/05/2024] [Indexed: 05/20/2024]
Abstract
The production of solid wastes in the metallurgical industry has significant implications for land resources and environmental pollution. To address this issue, it is crucial to explore the potential of recycling these solid wastes to reduce land occupation while protecting the environment and promoting resource utilization. Steel slag, red mud, copper slag and steel picking waste liquor are examples of solid wastes generated during the metallurgical process that possess high iron content and Fe species, making them excellent catalysts for persulfate-based advanced oxidation processes (PS-AOPs). This review elucidates the catalytic mechanisms and pathways of Fe2+ and Fe0 in the activation PS. Additionally, it underscores the potential of metallurgical iron-containing solid waste (MISW) as a catalyst for PS activation, offering a viable strategy for its high-value utilization. Lastly, the article provides an outlook towards future challenges and prospects for MISW in PS activation for the degradation of organic pollutants.
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Affiliation(s)
- Yang Wang
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Xin Hu
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Xingyue Chen
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Zhifeng Ren
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Yihong Li
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Jing Miao
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Yibo He
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China
| | - Peng Zhang
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, China.
| | - Chen Li
- Shanxi Province Science and Technology Achievement Transfer and Transformation Promotion and Data Monitoring Center, Taiyuan, 030024, Shanxi, China.
| | - Qiang Zhu
- Australia Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2500, Australia
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3
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Wang W, Wang Z, Xu B, Zhang Y, Yang L, Wu Y, Song G. Enhanced catalytic performance of CuCr/ZSM-5 catalyst by chemical vapour deposition for trichloroethylene oxidation. ENVIRONMENTAL TECHNOLOGY 2024; 45:1569-1580. [PMID: 36547006 DOI: 10.1080/09593330.2022.2148566] [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: 06/29/2022] [Accepted: 11/11/2022] [Indexed: 06/17/2023]
Abstract
The CuCr mixed oxides catalysts supported on ZSM-5 zeolite (CuCr/ZSM-5) were synthesized via metal organic chemical vapour deposition (MOCVD) method for catalytic oxidation of trichloroethylene (TCE). SEM, XRD, BET, H2-TPR, NH3-TPD and XPS were tested. The active components were dispersed uniformly over the surface of ZSM-5 zeolite. The catalytic experimental results exhibited that the CuCr/ZSM-5 exhibited the best catalytic performance for TCE oxidation with 90% of TCE at 338°C and the concentration of C2Cl4 decreased compared with Cu/ZSM-5 and Cr/ZSM-5. The possible reason is that CuCr/ZSM-5 has superior reducibility, higher Cu2+ surface concentration as well as more surface oxygen.
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Affiliation(s)
- Wenyan Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Zhen Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Bing Xu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Yong Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Lin Yang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Yixiao Wu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guangsen Song
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
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Zhang R, Zhu Y, Dong J, Yao Z, Zeng G, Sheng X, Xu Z, Lyu S. Fluoranthene degradation in a persulfate system activated by sulfidated nano zero-valent iron (S-nZVI): performance and mechanisms. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2024; 89:225-240. [PMID: 39219127 PMCID: wst_2024_007 DOI: 10.2166/wst.2024.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Fluoranthene (FLT) has received mounting focus due to its hazardous properties and frequent occurrence in groundwater. In this study, sulfidated nano zero-valent iron (S-nZVI) was selected as an efficient catalyst for activating persulfate (PS) to degrade FLT. The effects of reagent doses, various water conditions (pH, anions, and humic acid), and the presence of surfactants on FLT degradation were investigated. Radical probe experiments, electron paramagnetic resonance (EPR) spectrum detection, and scavenging tests were performed to identify the major reactive oxygen species (ROS) in the system. The results showed that in the PS/S-nZVI system, 96.2% of FLT was removed within 120 min at the optimal dose of PS = 0.07 mM and S-nZVI = 0.0072 g L-1. S(-II) in the S-nZVI surface layer promoted Fe(II) regeneration. Furthermore, HO• and SO4-• were identified as the main contributors to FLT degradation. The intermediates of FLT degradation were detected by gas chromatograph-mass spectrometry (GC-MS) and a possible FLT degradation pathway was proposed. Finally, the effective degradation of two other common polycyclic aromatic hydrocarbons (PAHs) (naphthalene and phenanthrene) demonstrated the broad-spectrum reactivity of the PS/S-nZVI process. In conclusion, these findings strongly demonstrate that the PS/S-nZVI process is a promising alternative for the remediation of PAH-contaminated groundwater.
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Affiliation(s)
- Ruzhuang Zhang
- Shanghai Chengtou Environmental Ecological Remediation Technology Co., LTD, Shanghai 200331, China E-mail:
| | - Yi Zhu
- Shanghai Chengtou Environmental Ecological Remediation Technology Co., LTD, Shanghai 200331, China
| | - Jiaqi Dong
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Zhennan Yao
- Shanghai Chengtou Environmental Ecological Remediation Technology Co., LTD, Shanghai 200331, China
| | - Guilu Zeng
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Xianxian Sheng
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Ziqian Xu
- Shanghai Chengtou Environmental Ecological Remediation Technology Co., LTD, Shanghai 200331, China
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
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Liu M, Ye Y, Xu L, Gao T, Zhong A, Song Z. Recent Advances in Nanoscale Zero-Valent Iron (nZVI)-Based Advanced Oxidation Processes (AOPs): Applications, Mechanisms, and Future Prospects. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2830. [PMID: 37947676 PMCID: PMC10647831 DOI: 10.3390/nano13212830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023]
Abstract
The fast rise of organic pollution has posed severe health risks to human beings and toxic issues to ecosystems. Proper disposal toward these organic contaminants is significant to maintain a green and sustainable development. Among various techniques for environmental remediation, advanced oxidation processes (AOPs) can non-selectively oxidize and mineralize organic contaminants into CO2, H2O, and inorganic salts using free radicals that are generated from the activation of oxidants, such as persulfate, H2O2, O2, peracetic acid, periodate, percarbonate, etc., while the activation of oxidants using catalysts via Fenton-type reactions is crucial for the production of reactive oxygen species (ROS), i.e., •OH, •SO4-, •O2-, •O3CCH3, •O2CCH3, •IO3, •CO3-, and 1O2. Nanoscale zero-valent iron (nZVI), with a core of Fe0 that performs a sustained activation effect in AOPs by gradually releasing ferrous ions, has been demonstrated as a cost-effective, high reactivity, easy recovery, easy recycling, and environmentally friendly heterogeneous catalyst of AOPs. The combination of nZVI and AOPs, providing an appropriate way for the complete degradation of organic pollutants via indiscriminate oxidation of ROS, is emerging as an important technique for environmental remediation and has received considerable attention in the last decade. The following review comprises a short survey of the most recent reports in the applications of nZVI participating AOPs, their mechanisms, and future prospects. It contains six sections, an introduction into the theme, applications of persulfate, hydrogen peroxide, oxygen, and other oxidants-based AOPs catalyzed with nZVI, and conclusions about the reported research with perspectives for future developments. Elucidation of the applications and mechanisms of nZVI-based AOPs with various oxidants may not only pave the way to more affordable AOP protocols, but may also promote exploration and fabrication of more effective and sustainable nZVI materials applicable in practical applications.
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Affiliation(s)
- Mingyue Liu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
- Engineering Research Center of Recycling & Comprehensive Utilization of Pharmaceutical and Chemical Waste of Zhejiang Province, Taizhou University, Taizhou 318000, China
| | - Yuyuan Ye
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Linli Xu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Ting Gao
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Aiguo Zhong
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Zhenjun Song
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
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Chen Z, Cao W, Bai H, Zhang R, Liu Y, Li Y, Song J, Liu J, Ren G. Review on the degradation of chlorinated hydrocarbons by persulfate activated with zero-valent iron-based materials. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:761-782. [PMID: 36789716 DOI: 10.2166/wst.2023.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Chlorinated hydrocarbons (CHCs) are often used in industrial processes, and they have been found in groundwater with increasing frequency in recent years. Several typical CHCs, including trichloroethylene (TCE), 1,1,1-trichloroethane (TCA), carbon tetrachloride (CT), etc., have strong cytotoxicity and carcinogenicity, posing a serious threat to human health and ecological environment. Advanced persulfate (PS) oxidation technology based on nano zero-valent iron (nZVI) has become a research hotspot for CHCs degradation in recent years. However, nZVI is easily oxidized to form the surface passivation layer and prone to aggregation in practical application, which significantly reduces the activation efficiency of PS. In order to solve this problem, various nZVI modification solutions have been proposed. This review systematically summarizes four commonly used modification methods of nZVI, and the theoretical mechanisms of PS activated by primitive and modified nZVI. Besides, the influencing factors in the engineering application process are discussed. In addition, the controversial views on which of the two (SO4·- and ·OH) is dominant in the nZVI/PS system are summarized. Generally, SO4·- predominates in acidic conditions while ·OH prefers neutral and alkaline environments. Finally, challenges and prospects for practical application of CHCs removal by nZVI-based materials activating PS are also analyzed.
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Affiliation(s)
- Zhiguo Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Wenqing Cao
- Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - He Bai
- Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Rong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Yiyun Liu
- Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Yan Li
- Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Jingpeng Song
- Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Juncheng Liu
- Tianjin Huakan Environmental Protection Technology Co., Ltd, Tianjin 300170, China
| | - Gengbo Ren
- School of Energy and Environment Engineering, Hebei University of Technology, Tianjin 300401, China
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Xu W, Zhang J, Xu T, Hu X, Shen C, Lou L. Could sulfidation enhance the long-term performance of nano-zero valent iron in the peroxymonosulfate activation to degrade 2-chlorobiphenyl? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120631. [PMID: 36370971 DOI: 10.1016/j.envpol.2022.120631] [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: 09/21/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Sulfidation can enhance the hydrophobicity of nano-zero valent iron (nZVI) and improve its long-term degradation performance in reduction technology. However, whether sulfidation can enhance its long-term performance in sulfate radical-based advanced oxidation processes hasn't been systematically studied. Herein sulfide-modified nZVI (S-nZVI) was prepared by different sulfidation methods and S/Fe ratios. The behavior of S-nZVI on the peroxymonosulfatec (PMS) activation to degrade 2-chlorobiphenyl for continuous 5 rounds was investigated. The results showed that sulfidation couldn't always promote the long-term degradation performance. S-nZVI prepared by one-step sulfidation method with high S/Fe ratio (S-nZVIonestep-7%, S-nZVIonestep-14%) exhibited inferior degradation performance than unmodified nZVI (52.2%). This was because that the electron donor Fe0 was consumed rapidly and the crystalline lepidocrocite accumulated on the surface, thus inhibited PMS activation. In contrast, S-nZVI prepared by post-sulfidation method with high S/Fe ratio (S-nZVIpost-7%, S-nZVIpost-14%) exhibited more Fe0 residual, less FeOx accumulation, and more catalytic Fe2+ regeneration. Consequently, S-nZVIpost exhibited superior degradation capacity (69.3%). Moreover, the radical quenching experiments revealed that the primary free radicals involved in the degradation were transformed from SO4•- to •OH with prolongation of the degradation. Additionally, Fe (IV) contributed to the degradation through non-radical mechanism, especially in the S-nZVIpost-7%/PMS system.
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Affiliation(s)
- Weijian Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029, People's Republic of China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Jin Zhang
- Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029, People's Republic of China
| | - Tao Xu
- Hangzhou Zetian Chunlai Technology Co., Ltd., Hangzhou, People's Republic of China
| | - Xinyi Hu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029, People's Republic of China
| | - Chaofeng Shen
- Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029, People's Republic of China; Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, 310020, People's Republic of China
| | - Liping Lou
- Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029, People's Republic of China; Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, 310020, People's Republic of China.
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Sheng X, Lyu S. Insights into enhanced removal of fluoranthene by sulfidated nanoscale zero-valent iron: In aqueous solution and soil slurry. CHEMOSPHERE 2023; 312:137172. [PMID: 36356808 DOI: 10.1016/j.chemosphere.2022.137172] [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: 05/13/2022] [Revised: 10/31/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
In this study, 90.9% fluoranthene (FLT) was degraded in sodium percarbonate (2Na2CO3·3H2O2, SPC) oxidation system by Fe(II) combined with sulfidated nano zero valent iron (S-nZVI) activation within 60 min in aqueous solution. Scavenging experiments and electron paramagnetic resonance detection suggested that HO•, O2-•, and 1O2 contributed to the removal of FLT in SPC/Fe(II)/S-nZVI system. Based on the FLT degradation intermediates that were analyzed by GC-MS in SPC/Fe(II)/S-nZVI process, three potential FLT degradation pathways were speculated. The removal efficiency of FLT was inhibited with the presence of humic acid (HA) unless the concentration of HA was controlled at 1.0 mg L-1, and the presence of 1.0 mg L-1 HA favored the generation of HO•. The excellent removal performance of FLT (88.6%) could be achieved in actual groundwater by increasing the chemical dosages and adjusting the initial solution pH to acid environment. In soil slurry tests, the optimal reaction time and soil/water ratio were obtained as 24 h and 2/10, respectively, and the desired FLT degradation performances were obtained at pH 3 and 5 with the soil/water ratio of 2/10. This work effectively demonstrates the application potential of SPC/Fe(II)/S-nZVI system for the remediation of PAHs contamination in actual industrial sites.
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Affiliation(s)
- Xianxian Sheng
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China.
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China.
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Tian T, Zhu X, Song Z, Li X, Zhang W, Mao Y, Chen S, Wu J, Ouyang G. The potential of a natural iron ore residue application in the efficient removal of tetracycline hydrochloride from an aqueous solution: insight into the degradation mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76782-76792. [PMID: 35670944 DOI: 10.1007/s11356-022-21077-1] [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: 12/03/2021] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
In the existing research, most of the heterogeneous catalysts applied in the activation of persulfate to degrade organic pollutants were synthesized from chemical reagents in the laboratory. In this paper, we have obtained a spent iron ore (IO) residue directly collecting from the iron ore plants, and efficiently activating peroxydisulfate (PS) to produce reactive free radicals. The experimental results demonstrated that the IO could effectively activate PS to degrade tetracycline hydrochloride (TCH), with TCH removal rate reaching up to 85.6% within 2 h at room temperature. The TCH removal rate was increased with increasing iron ore dosage, while the more acidic pH condition would be favorable to TCH removal process. The material characterization results demonstrated that the dominant components of IO were Fe3O4 and FeOOH. The transformation from Fe(II) to Fe(III) at the surface IO was observed after TCH degradation. What's more, the quenching experiment and EPR detection results confirmed that the sulfate radical (SO4•-) and hydroxyl radicals (•OH) would be acting as the main free radicals for TCH degradation. This study could not only explore a novel way to recycle the discarded iron ore, but also further expand its application in an effective activation of PS in an aqueous solution.
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Affiliation(s)
- Tingting Tian
- Faculty of Environmental and Municipal Engineering, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, People's Republic of China
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, People's Republic of China
| | - Xinfeng Zhu
- Faculty of Environmental and Municipal Engineering, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, People's Republic of China.
| | - Zhongxian Song
- Faculty of Environmental and Municipal Engineering, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, People's Republic of China
| | - Xindong Li
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, People's Republic of China
| | - Wei Zhang
- School of Ecology and Environmental, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yanli Mao
- Faculty of Environmental and Municipal Engineering, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, People's Republic of China
| | - Songtao Chen
- Faculty of Environmental and Municipal Engineering, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, People's Republic of China
| | - Junfeng Wu
- Faculty of Environmental and Municipal Engineering, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, People's Republic of China
| | - Guozi Ouyang
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, People's Republic of China
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The destruction of trichloroethylene by zinc dioxide using a modified Fenton reaction: Performance and a preliminary mechanism. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04837-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Wang P, Xu Z, Liu Y, Sheng X, Dong J, Lu Z, Shan A, Lyu S. Mechanism of trichloroethylene degradation in Fe(II)-activated peroxymonosulfate coupled with citric acid system in the presence of surfactants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:53176-53190. [PMID: 35279749 DOI: 10.1007/s11356-022-19566-4] [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: 07/31/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
This study demonstrated that peroxymonosulfate (PMS) activated by Fe(II)/citric acid (CA) could effectively degrade trichloroethylene (TCE) in the presence of Tween-80 (TW-80) or sodium dodecyl sulfate (SDS). Significant TCE removal of 91.6% (90.1%) with 1.3 g L-1 TW-80 (2.3 g L-1 SDS) were achieved at the PMS/Fe(II)/CA/TCE molar ratio of 4/4/4/1 (20/20/20/1). TCE degradation could be greatly elevated by Fe(II) and CA addition, while the existence of surfactants restrained TCE removal and the inhibitory effect increased with the higher surfactant concentration. The tests of the electron paramagnetic resonance (EPR) and reactive radicals scavenging experiments proved that sulfate radical (SO4-•), hydroxyl radical (HO•), and superoxide radical (O2-•) were responsible for TCE degradation and SO4-• acted as the major one. The influences of initial solution pH and inorganic anions k(Cl- and HCO3-) on TCE removal were also investigated. Eventually, TCE removal in actual groundwater tests with surfactants confirmed that the PMS/Fe(II)/CA process has a huge potential of practical application in remediating the groundwater contaminated by TCE after the pretreatment by solubilization using surfactants.
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Affiliation(s)
- Peng Wang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhiqiang Xu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Yulong Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Xianxian Sheng
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Jiaqi Dong
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhanpeng Lu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Ali Shan
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
- Department of Environmental Sciences, The University of Lahore, Lahore, 46000, Pakistan
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, East China University of Science and Technology, Shanghai, 200237, China.
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Li H, Fu Y, Mei C, Wang M. Effective degradation of Direct Red 81 using FeS-activated persulfate process. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 308:114616. [PMID: 35121464 DOI: 10.1016/j.jenvman.2022.114616] [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: 08/02/2021] [Revised: 01/15/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
As a burgeoning advanced oxidation process (AOP), heterogeneous activation of persulfate (PS) for synthetic refractory contaminants decontamination has recently received much attention. In this study, FeS was selected as a heterogeneous PS activator to facilitate the degradation of a typical recalcitrant contaminant of diazo dye Direct Red 81 (DR 81). The results showed that approximately 95% of 0.03 mM DR 81 was removed within 60 min with FeS and PS doses of 1.5 × 10-3 M. The efficient decomposition of DR 81 by the FeS/PS system was assumed to be mainly attributed to the highly reactive SO4-• and •OH, which was related to PS cleavage by both dissolved Fe2+ leached from FeS and Fe2+ bound on the FeS surface. Except for strongly alkaline conditions, DR 81 decolorations by FeS/PS were insignificantly affected by operational parameters such as temperature, initial solution pH, and rotate speed. Meanwhile, the presence of five inorganic anions being studied had distinct impacts on DR 81 degradation and followed a strict order of NO3- < Cl- < SO42- < CO32- < PO43-. However, FeS/PS system was highly adaptable, and FeS, which is used as a PS activator was more stable. GC/MS and TOC data revealed that thorough mineralization of DR 81 by PS/FeS in an initial fast reaction phase to transform DR 81 to aromatic intermediates, followed by a slow reaction phase that mineralized these organic intermediates into carboxylic acids and carbon dioxide through further oxidation.
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Affiliation(s)
- Haijun Li
- School of Chemical and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 64300, Sichuan, PR China
| | - Yuhang Fu
- School of Chemical and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 64300, Sichuan, PR China
| | - Changgen Mei
- School of Chemical and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 64300, Sichuan, PR China
| | - Min Wang
- School of Chemical and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 64300, Sichuan, PR China.
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13
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Yang S, Liu A, Liu J, Liu Z, Zhang W. Advance of Sulfidated Nanoscale Zero-Valent Iron: Synthesis, Properties and Environmental Application. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22080345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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