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Li Y, Qu C, Ye Q, Meng F, Yang D, Wang L. Enhanced tetracycline degradation by novel Mn-FeOOH/CNNS photocatalysts in a visible-light-driven photocatalysis coupled peroxydisulfate system. ENVIRONMENTAL RESEARCH 2024; 257:119293. [PMID: 38838749 DOI: 10.1016/j.envres.2024.119293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/16/2024] [Accepted: 05/30/2024] [Indexed: 06/07/2024]
Abstract
Recently, photocatalysis combined peroxydisulfate activation under visible light (PC-PDS/Vis) was developed as a promising technology for removing antibiotics in water. Herein, Mn doped FeOOH (Mn-FeOOH) nanoclusters were grown in-situ on the surface of graphitic carbon nitride nanosheets (CNNS) using a wet chemical method, which served as a visible-light-driven photocatalyst for peroxydisulfate (PDS) activation. Photovoltaic property characterizations revealed that Mn-FeOOH/CNNS owned superior light capture ability and carrier separation efficiency. According to DFT calculations, the synergistic effect between Mn and Fe species was proved to enhance the adsorption and activation of PDS. 99.7% of tetracycline (TC) was rapidly removed in 50 min in the PC-PDS/Vis system. In addition, Mn-FeOOH/CNNS exhibited high recycling stability with low iron leaching, attributed to the interaction between Mn-FeOOH clusters and carbon species. Quenching experiments and electron spin resonance (ESR) tests unveiled that •O2- played a significant role in TC removal, while •OH and SO4•- acted as additional roles contributing to the overall process. These findings given a new strategy for antibiotics degradation by photocatalysis, offering deeper insights for the advancement of sustainable and cutting-edge wastewater treatment technologies.
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Affiliation(s)
- Yongqi Li
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Chao Qu
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Qing Ye
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Fanwei Meng
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Decai Yang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Lanyang Wang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
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Wang T, Deng L, Tan C, Hu J, Prasad Singh R. Formation of halonitromethanes from different nitrophenol compounds during UV/post-chlorination: Impact factors, DFT calculation, reaction mechanisms, and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174718. [PMID: 38997025 DOI: 10.1016/j.scitotenv.2024.174718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
As ubiquitous chemical substances in water bodies, nitrophenol compounds (NCs) can form chlorinated halonitromethanes (Cl-HNMs) in the chlorination process. This work chose six typical NCs to explore Cl-HNMs produced during the UV/post-chlorination process, and Cl-HNMs yields from these NCs followed the increasing order of 4-, 2-, 2-amino-3-, 2-methyl-3-, 3-, and 2-chloro-3-nitrophenol. The Cl-HNMs yields increased continually or increased firstly and declined with post-chlorination time. Increasing chlorine dosage favored Cl-HNMs formation, while excessive chlorine dosage decreased Cl-HNMs produced from 2- and 4-nitrophenol. Besides, appropriate UV radiation, acidic pH, and higher precursor concentrations facilitated Cl-HNMs formation. Then, the reaction mechanisms of Cl-HNMs generated from these different NCs were explored according to density functional theory calculation and identified transformation products (TPs), and the main reactions included chlorine substitution, benzoquinone compound formation, ring opening, and bond cleavage. Moreover, the Cl-HNMs generated from 2-chloro-3-nitrophenol were of the highest toxicity, and the six NCs and their TPs also presented ecotoxicity. Finally, two kinds of real waters were used to explore Cl-HNMs formation and toxicity, and they were significantly distinguishable compared to the phenomena observed in simulated waters. This work will give new insights into Cl-HNMs formation from different NCs in water disinfection processes and help better apply the UV/post-chlorination process to water treatments.
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Affiliation(s)
- Tao Wang
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Lin Deng
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China.
| | - Chaoqun Tan
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Jun Hu
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China; College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
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Wang T, Deng L, Tan C, Hu J, Prasad Singh R. Reaction mechanisms of chlorinated disinfection byproducts formed from nitrophenol compounds with different structures during chlor(am)ination and UV/post-chlor(am)ination. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134544. [PMID: 38733788 DOI: 10.1016/j.jhazmat.2024.134544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/02/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
Nitrophenol compounds (NCs) have high formation potentials of disinfection byproducts (DBPs) in water disinfection processes, however, the reaction mechanisms of DBPs formed from different NCs are not elucidated clearly. Herein, nitrobenzene, phenol, and six representative NCs were used to explore the formation mechanisms of chlorinated DBPs (Cl-DBPs) during chlor(am)ination and UV/post-chlor(am)ination. Consequently, the coexistence of nitro and hydroxy groups in NCs facilitated the electrophilic substitution to produce intermediates of Cl-DBPs, and the different positions of nitro and hydroxy groups also induced different yields and formation mechanisms of Cl-DBPs during the chlorination and UV/post-chlorination processes. Besides, the amino, chlorine, and methyl groups significantly influenced the formation mechanisms of Cl-DBPs during the chlorination and UV/post-chlorination processes. Furthermore, the total Cl-DBPs yields from the six NCs followed a decreasing order of 2-chloro-3-nitrophenol, 3-nitrophenol, 2-methyl-3-nitrophenol, 2-amino-4-nitrophenol, 2-nitrophenol, and 4-nitrophenol during chlorination and UV/post-chlorination. However, the total Cl-DBPs yields from the six NCs during chloramination and UV/post-chloramination followed a quite different order, which might be caused by additional reaction mechanisms, e.g., nucleophilic substitution or addition might occur to NCs in the presence of monochloramine (NH2Cl). This work can offer deep insights into the reaction mechanisms of Cl-DBPs from NCs during the chlor(am)ination and UV/post-chlor(am)ination processes.
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Affiliation(s)
- Tao Wang
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Lin Deng
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China.
| | - Chaoqun Tan
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Jun Hu
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
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4
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Wang T, Deng L, Tan C, Hu J, Singh RP. Effects of cupric ions on the formation of chlorinated disinfection byproducts from nitrophenol compounds during UV/post-chlorination. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134362. [PMID: 38643576 DOI: 10.1016/j.jhazmat.2024.134362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
Cupric ions (Cu2+) are ubiquitous in surface waters and can influence disinfection byproducts (DBPs) formation in water disinfection processes. This work explored the effects of Cu2+ on chlorinated DBPs (Cl-DBPs) formation from six representative nitrophenol compounds (NCs) during UV irradiation followed by a subsequent chlorination (i.e., UV/post-chlorination), and the results showed Cu2+ enhanced chlorinated halonitromethane (Cl-HNMs) formation from five NCs (besides 2-methyl-3-nitrophenol) and dichloroacetonitrile (DCAN) and trichloromethane (TCM) formation from six NCs. Nevertheless, excessive Cu2+ might reduce Cl-DBPs formation. Increasing UV fluences displayed different influences on total Cl-DBPs formation from different NCs, and increasing chlorine dosages and NCs concentrations enhanced that. Moreover, a relatively low pH (5.8) or high pH (7.8) might control the yields of total Cl-DBPs produced from different NCs. Notably, Cu2+ enhanced Cl-DBPs formation from NCs during UV/post-chlorination mainly through the catalytic effect on nitro-benzoquinone production and the conversion of Cl-DBPs from nitro-benzoquinone. Additionally, Cu2+ could increase the toxicity of total Cl-DBPs produced from five NCs besides 2-methyl-3-nitrophenol. Finally, the impacts of Cu2+ on Cl-DBPs formation and toxicity in real waters were quite different from those in simulated waters. This study is conducive to further understanding how Cu2+ affected Cl-DBPs formation and toxicity in chlorine disinfection processes and controlling Cl-DBPs formation in copper containing water.
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Affiliation(s)
- Tao Wang
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Lin Deng
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China.
| | - Chaoqun Tan
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Jun Hu
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
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5
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Wang T, Deng L, Tan C, Hu J, Singh RP. Comparative analysis of chlorinated disinfection byproducts formation from 4-nitrophenol and 2-amino-4-nitrophenol during UV/post-chlorination. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172200. [PMID: 38575027 DOI: 10.1016/j.scitotenv.2024.172200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024]
Abstract
Nitrophenol compounds (NCs) are widely distributed in water environments and regarded as important precursors of disinfection byproducts (DBPs). Herein, 4-nitrophenol and 2-amino-4-nitrophenol were selected as representative NCs to explore chlorinated DBPs (Cl-DBPs) formation during UV/post-chlorination. Dichloronitromethane (DCNM), trichloronitromethane (TCNM), dichloroacetonitrile (DCAN), and trichloromethane (TCM) were formed from 4-nitrophenol and 2-amino-4-nitrophenol during UV/post-chlorination, and the yields of individual Cl-DBPs from 2-amino-4-nitrophenol were higher than those from 4-nitrophenol. Meantime, increasing chlorine contact time, UV fluence, and free chlorine dose could enhance Cl-DBPs formation, while much higher values of the three factors might decrease the yields of Cl-DBPs. Besides, alkaline pH could decrease the yields of halonitromethane (HNMs) and DCAN but increase the yields of TCM. Also, higher concentrations of 4-nitrophenol and 2-amino-4-nitrophenol would induce more Cl-DBPs formation. Subsequently, the possible formation pathways of DCNM, TCNM, DCAN, and TCM form 4-nitrophenol and 2-amino-4-nitrophenol during UV/post-chlorination were proposed according to transformation products (TPs) and density functional theory (DFT) calculation. Notably, Cl-DBPs formed from 2-amino-4-nitrophenol presented higher toxicity than those from 4-nitrophenol. Among these generated Cl-DBPs, DCAN and TCNM posed higher cytotoxicity and genotoxicity, respectively. Furthermore, 4-nitrophenol, 2-amino-4-nitrophenol, and their TPs exhibited ecotoxicity. Finally, 4-nitrophenol and 2-amino-4-nitrophenol presented a high potential to produce DCNM, TCNM, DCAN, and TCM in actual waters during UV/post-chlorination, but the Cl-DBPs yields were markedly different from those in simulated waters. This work can help better understand Cl-DBPs formation from different NCs during UV/post-chlorination and is conducive to controlling Cl-DBPs formation.
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Affiliation(s)
- Tao Wang
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Lin Deng
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China.
| | - Chaoqun Tan
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
| | - Jun Hu
- Department of Municipal Engineering, Southeast University, Nanjing 211189, China
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6
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Cui H, Zhan W, Ji X, Jiang M, Wu X, Huang M, Huang C, Ma S. Removal of sulfonamide antibiotics by a sonocatalytic Fenton-like reaction: Efficiency and mechanisms. ENVIRONMENTAL RESEARCH 2023; 239:117408. [PMID: 37838205 DOI: 10.1016/j.envres.2023.117408] [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: 09/05/2023] [Revised: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
With the widespread use of sulfonamide antibiotics (SAs), SAs are detected as residues in aquatic environments, posing a serious threat to human life and safety. Because of their high water solubility, fast transmission rate, and strong antibacterial properties, the safe disposal of SAs has become a key constraint for water quality assurance. Therefore, an ultrasound (US)-assisted zero-valent iron (ZVI)/persulfate (PS) system was proposed to explore the rapid and effective degradation of SAs. Comparative experiments were performed to study the removal of sulfadiazine (SDZ) by US, ZVI, PS, US/ZVI, US/PS, ZVI/PS, and US-ZVI/PS systems, respectively. Experimental results indicated that the highest removal efficiency of SDZ was ahieved in US-ZVI/PS system (97.4%), which were 2-44 times higher than that in other systems. Furthermore, the degradation efficiency of five typical SAs was achieved over 95%, demonstrating the effectiveness of the US ZVI/PS system for SAs removal. Also, quantum chemical computations for potential reactive sites of SAs and intermediate product detection by HPLC‒MS/MS were performed. The radical attack on active sites of SAs, such as N atom (number 7), was the main reason for SAs removal in US-ZVI/PS system. Besides, the common degradation pathways of six typical SAs were defined as S-N bond cleavage, C-N bond cleavage, benzene ring hydroxylation, aniline oxidation, and R substituent oxidation. Interestingly, the unique pathway of "SO2 group extraction" was observed in the degradation of six-membered ring SAs. Therefore, the US-ZVI/PS system is a promising and cost-effective method for the removal of SAs and other refractory pollutants.
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Affiliation(s)
- Hao Cui
- Guangzhou Institute of Building Science Group Co., Ltd., Guangzhou, 510440, China; South China University of Technology, Guangzhou, 510641, China
| | - Wei Zhan
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Xuan Ji
- Guangzhou Institute of Building Science Group Co., Ltd., Guangzhou, 510440, China
| | - Mingye Jiang
- Guangzhou Institute of Building Science Group Co., Ltd., Guangzhou, 510440, China
| | - Xiaoting Wu
- Guangzhou Institute of Building Science Group Co., Ltd., Guangzhou, 510440, China
| | - Minru Huang
- Guangzhou Institute of Building Science Group Co., Ltd., Guangzhou, 510440, China
| | - Chenhui Huang
- School of Ecological Environment, Guangdong Industry Polytechnic, Guangzhou, 510300, China
| | - Shanshan Ma
- School of Ecological Environment, Guangdong Industry Polytechnic, Guangzhou, 510300, China.
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7
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Arifin MN, Jusoh R, Abdullah H, Ainirazali N, Setiabudi HD. Recent advances in advanced oxidation processes (AOPs) for the treatment of nitro- and alkyl-phenolic compounds. ENVIRONMENTAL RESEARCH 2023; 229:115936. [PMID: 37080279 DOI: 10.1016/j.envres.2023.115936] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 04/11/2023] [Accepted: 04/15/2023] [Indexed: 05/03/2023]
Abstract
The presence of phenolic compounds in the aquatic environment has posed severe risks due to their toxicity. Among the phenolic families, nitro- and alkyl-phenolic compounds have been categorized as precedence contaminants by the United States Environmental Protection Agency (US EPA). Therefore, efficient treatment methods for wastewater containing nitro- and alkyl-phenolic compounds are urgently needed. Due to the advantages of creating reactive species and generating efficient degradation of hazardous contaminants in wastewater, advanced oxidation processes (AOPs) are well-known in the field of treating toxic contaminants. In this review paper, the recent directions in AOPs, catalysts, mechanisms, and kinetics of AOPs are comprehensively reviewed. Furthermore, the conclusion summarizes the research findings, future prospects, and opportunities for this study. The main direction of AOPs lies on the optimization of catalyst and operating parameters, with industrial applications remain as the main challenge. This review article is expected to present a summary and in-depth understanding of AOPs development; and thus, inspiring scientists to accelerate the evolution of AOPs in industrial applications.
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Affiliation(s)
- M N Arifin
- Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia
| | - R Jusoh
- Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia
| | - H Abdullah
- Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia
| | - N Ainirazali
- Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia; Centre for Research in Advanced Fluid & Processes, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia
| | - H D Setiabudi
- Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia; Centre for Research in Advanced Fluid & Processes, Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, 26300, Gambang, Kuantan, Pahang, Malaysia.
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Zhang F, Jiang Y, Dai S, Wei X, Ma Y, Liao H, Qin Y, Peng Q, Zhao X, Hou Z. Selective Hydrogenation of Nitrobenzene to para-Aminophenol on a Zirconium-Phosphate-Supported Platinum Catalyst. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Fengxue Zhang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yongjun Jiang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Xinjia Wei
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuan Ma
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Huiying Liao
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuxi Qin
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qingpo Peng
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiuge Zhao
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, School of Chemistry and Molecular Engineering, Shanghai 200062, China
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Preparation and characterization of bimetallic zero-valent iron nanocatalysts for nitrophenol degradation. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104817] [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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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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Hou J, Si L, Shi Z, Miao C, Zhao Y, Ji X, Hou Q, Ai S. Effective adsorption and catalytic reduction of nitrophenols by amino-rich Cu(I)-I coordination polymer. CHEMOSPHERE 2023; 311:136903. [PMID: 36280123 DOI: 10.1016/j.chemosphere.2022.136903] [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: 07/22/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Nitrophenols are identified as the priority organic pollutants due to the chemical stability, water solubility, persistence, and toxicity to human health and the environment. Hence, removal of nitrophenols from waste water is vitally essential. In this study, amino-rich coordination polymer Cu2I2(MA)2 (MA = melamine) has been applied for efficient adsorption and catalytic reduction of nitrophenols, like 4-nitrophenol (4-NP), 2, 4-dinitrophenol (DNP) and 2, 4, 6-trinitrophenol (TNP). The effect of various parameters like contact time, initial concentrations, pH, and temperature on adsorption were investigated. The adsorption of nitrophenols fitted the pseudo-second-order kinetic model and Langmuir isotherms model well. The maximum adsorption capacities were 285.71, 232.02, and 131.57 mg g-1 for 4-NP, DNP, and TNP when initial concentrations were 50 mg L-1 at 293.15 K, respectively. The adsorption of nitrophenols is a spontaneous, endothermic, and entropy-driven process. The reduction reaction followed the pseudo-first-order kinetics, and the kinetic rate constants were 0.4413, 0.3167, and 0.17538 min-1 for 4-NP, DNP, and TNP, respectively. The effect of initial nitrophenols concentration, anions, and temperature on reduction process was investigated. The mechanism of adsorption and catalytic reduction of Cu2I2(MA)2 was studied. The results demonstrated that Cu2I2(MA)2 exhibits excellent adsorption and catalytic activity to remove nitrophenols.
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Affiliation(s)
- Jiayi Hou
- College of Chemistry and Material Science, Shandong Agricultural University; Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Taian, Shandong, 271018, PR China
| | - Lin Si
- College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong, 271018, PR China
| | - Zekun Shi
- College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong, 271018, PR China
| | - Chengxia Miao
- College of Chemistry and Material Science, Shandong Agricultural University; Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Taian, Shandong, 271018, PR China
| | - Yan Zhao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, Shandong, 271018, PR China
| | - Xiangshan Ji
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, Shandong, 271018, PR China
| | - Qin Hou
- College of Chemistry and Material Science, Shandong Agricultural University; Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Taian, Shandong, 271018, PR China.
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University; Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Taian, Shandong, 271018, PR China.
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12
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Simultaneous removal of organic micropollutants and inorganic heavy metals by nano-calcium peroxide induced Fenton-like treatment. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Okla MK, Balasurya S, Alaraidh IA, Mohebaldin A, Al-Ghamdi AA, Al-Okla MA, Abdel-Maksoud MA, Abdelaziz RF, Soufan W, Balakrishnaraja R, Raju LL, Thomas AM, Sudheer Khan S. Plasma-assisted in-situ preparation of L-cystine functionalized silver nanoparticle: An intelligent multicolor nano-sensing of cadmium and paracetamol from environmental sample. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121330. [PMID: 35605418 DOI: 10.1016/j.saa.2022.121330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
L-cystine (L-cys) functionalized plasmonic silver nanomaterial (Ag NPs) was fabricated toward the selective and sensitive detection of paracetamol and cadmium. The prepared L-cys-Ag nanoparticles (NPs) were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD) and fourier transform infrared spectroscopy (FTIR) analyses. SEM imaging show that Ag NPs was decorated on the surface of L-cysteine 3D cubic nanosheet. L-cys-Ag NPs showed selective and sensitive detection towards paracetamol and cadmium. The interference study confirms that the presence of other metal ions didn't inhibit the detection of cadmium by L-cys-Ag NPs. The limit of detection of paracetamol and cadmium by L-cys-Ag NPs was calculated to be 1.2 and 2.82 nM respectively. In addition, the real sample detection of paracetamol on blood serum and urine, and cadmium on STP were performed and the recovery percentage was above 97%. Further, the real sample analysis was performed in tap and drinking water and the recovery percentage was more than 98%. The analytic logic gate on the multicolour detection of cadmium and paracetamol was performed for the semi-quantitative monitoring of paracetamol and cadmium by L-cys-Ag NPs. The developed L-cys-Ag NPs were found to be an effective tool for the monitoring of cadmium in environmental water bodies and paracetamol in blood and urine.
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Affiliation(s)
- Mohammad K Okla
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - S Balasurya
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Ibrahim A Alaraidh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Asmaa Mohebaldin
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdullah A Al-Ghamdi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohammed A Al-Okla
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mostafa A Abdel-Maksoud
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ramadan F Abdelaziz
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Austria
| | - Walid Soufan
- College of Food and Agriculture Sciences, King Saud University. P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - R Balakrishnaraja
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Lija L Raju
- Department of Zoology, Mar Ivanios College, Nalanchira, Thiruvananthapuram, India
| | - Ajith M Thomas
- Department of Botany and Biotechnology, St Xavier's College, Thumba, Thiruvananthapuram, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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Chen Y, Gao Y, Liu T, Zhang Z, Li W. Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:690-713. [PMID: 36038972 DOI: 10.2166/wst.2022.254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With the rapid economic development, the discharge of industrial wastewater and municipal wastewater containing many refractory organic pollutants is increasing, so there is an urgent need for processes that can treat refractory organics in wastewater. Iron-carbon micro electrolysis and advanced oxidation based on persulfate radicals (SO4-·) have received much attention in the field of organic wastewater treatment. Iron-carbon micro electrolysis activated persulfate (Fe-C/PS) treatment of wastewater is characterized by high oxidation efficiency and no secondary pollution. This paper reviews the mechanism and process of Fe-C/PS, degradation of organics in different wastewater, and the influencing factors. In addition, the degradation efficiency and optimal reaction conditions (oxidant concentration, catalyst concentration, iron-carbon material, and pH) of Fe-C/PS in the treatment of refractory organics in wastewater are summarized. Moreover, the important factors affecting the degradation of organics by Fe-C/PS are presented. Finally, we analyzed the challenges and the prospects for the future of Fe-C/PS in application, and concluded that the main future directions are to improve the degradation efficiency and cost by synthesizing stable and efficient catalysts, optimizing process parameters, and expanding the application scope.
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Affiliation(s)
- Yu Chen
- College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China E-mail: ; Research Institute of Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yanjiao Gao
- College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China E-mail:
| | - Tingting Liu
- Research Institute of Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Zhao Zhang
- College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China E-mail:
| | - Weishi Li
- Research Institute of Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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15
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Chen HH, Park YK, Kwon E, Thanh BX, Tuan DD, Lisak G, Khiem TC, Huang CF, Lin KYA. Ultrasound process-enhanced removal of the toxic disinfection by-product bromate from water by aluminum: A comparative study. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10720. [PMID: 35582742 DOI: 10.1002/wer.10720] [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: 01/09/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 06/15/2023]
Abstract
As bromate removal and reduction can be also achieved using metals, aluminum (Al) appears as the most promising one for reduction of bromate because Al is abundant element and exhibits a high reduction power. Reactions between bromate and Al shall be even enhanced through ultrasound (US) process because US can facilitate mass transfer on liquid/solid interfaces and clean surfaces via generating microscale turbulence to facilitate reactions. Therefore, the aim of this study is for the first time to investigate the effect of US on bromate removal by Al metal. Specifically, Al particle would be treated by HCl to afford HCl-treated Al (HCTAL), which is capable of removing bromate and even reducing it to bromide. Such a mechanism is also validated by density function theory calculation through determining adsorption energy as -152.8 kJ/mole, and oxygen atoms of bromate would be extracted and reacted with Al atoms, releasing bromide ion. US not only facilitated bromate removal by further increasing removal capacity under the acidic condition but also suppressed the inhibitive effect from basicity at relatively high pH. The spent HCTAL could still remove bromate and convert it to bromide after regeneration. These features indicate that US considerably enhances bromate removal by Al. PRACTITIONER POINTS: Bromate removed by Al is elucidated by DFT calculation with Eabsorption = -152.8 kJ/mole. Oxygen atoms of bromate are extracted and reacted with Al atoms, releasing bromide ion. A higher power of ultrasound would substantially enhance bromate removal efficiency. Ultrasound also suppresses the inhibitive effect from basicity at relatively high pH. With ultrasound, the interference of co-existing anions on bromate removal is lessened.
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Affiliation(s)
- Hsing-Hua Chen
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung, Taiwan
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, Republic of Korea
| | - Eilhann Kwon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, Republic of Korea
| | - Bui Xuan Thanh
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology, VNU-HCM, Ho Chi Minh City, Viet Nam
| | - Duong Dinh Tuan
- International School, Thai Nguyen University, Thai Nguyen city, Viet Nam
| | - Grzegorz Lisak
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore
| | - Ta Cong Khiem
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Feng Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung, Taiwan
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16
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Jeong WG, Kim JG, Baek K. Removal of 1,2-dichloroethane in groundwater using Fenton oxidation. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128253. [PMID: 35033913 DOI: 10.1016/j.jhazmat.2022.128253] [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: 07/09/2021] [Revised: 12/03/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Among the chlorinated aliphatic hydrocarbons, 1,2-dichloroethane (1,2-DCA) is widely used for the synthesis of vinyl chloride monomers. Despite the high demand for 1,2-DCA, it poses a risk to the environment because it is persistent and carcinogenic. Therefore, in this study, several reagents (dithionite, hydrosulfide, sulfite, persulfate, sulfate radicals, and hydroxyl radicals) were evaluated for the degradation of 1,2-DCA. Among these, the hydroxyl radicals generated by the Fenton reaction were the most suitable oxidant, decomposing 92% of 1,2-DCA. Chloride, one of the final oxidized products, was observed, which supported the oxidation reaction. Moreover, with an increasing concentration of hydroxyl radicals, the degradation of 1,2-DCA increased. Furthermore, sufficient amounts of hydrogen peroxide were more important than Fe(II) in the decomposition of 1,2-DCA. The radical reaction can generate larger molecules via the degradation of 1,2-DCA, which are degraded over time. The applicability of Fenton oxidation was evaluated using real 1,2-DCA-contaminated groundwater. Although the degradation of target contaminant was lowered due to the alkaline pH and the presence of chloride and bicarbonate ions in groundwater, the Fenton reaction was still efficient to oxidize 1,2-DCA. These results indicate that Fenton oxidation is an effective technique for the treatment of 1,2-DCA in contaminated groundwater.
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Affiliation(s)
- Won-Gune Jeong
- Department of Environment & Energy, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea; Soil Environment Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea
| | - Jong-Gook Kim
- Department of Environment & Energy, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea; Soil Environment Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea
| | - Kitae Baek
- Department of Environment & Energy, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea; Soil Environment Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea; School of Civil, Environmental, and Resources-Energy Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea.
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17
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β-Ni(OH)2 supported over g-C3N4: A novel catalyst for para-nitrophenol reduction and supercapacitor electrode. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Roy K, Moholkar VS. p-nitrophenol degradation by hybrid advanced oxidation process of heterogeneous Fenton assisted hydrodynamic cavitation: Discernment of synergistic interactions and chemical mechanism. CHEMOSPHERE 2021; 283:131114. [PMID: 34147974 DOI: 10.1016/j.chemosphere.2021.131114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/13/2021] [Accepted: 05/30/2021] [Indexed: 06/12/2023]
Abstract
The present study has investigated p-nitrophenol (PNP) degradation by hybrid advanced oxidation process (AOP) of hydrodynamic cavitation with heterogenous Fe3O4 nanoparticles. 78.8 ± 1.2% of PNP degradation was obtained at optimum operational conditions: inlet pressure = 8 atm, pH = 3, initial concentration of PNP = 20 mg L-1, Fe3O4:H2O2 = 1:100. PNP degradation profiles were analyzed using a kinetic model based on the reaction network. The closest match between the simulated and experimental degradation profiles was obtained for the initial concertation of [H2O2] = 0.6 M, which was far higher than concentration of externally added H2O2. This was attributed to in-situ generation of H2O2 through transient cavitation. Intense shear and turbulence generated in cavitating flow caused surface leaching of Fe3O4 particles that released Fe2+/Fe3+ ions. The synergy in the hybrid AOP was in-situ Fenton reactions between leached Fe2+/Fe3+ ions and H2O2 present in the reaction mixture. The mechanism in •OH mediated oxidative degradation of PNP was further explored with Density Functional Theory (DFT) simulations. Both •OH addition on benzene ring and H-abstraction reactions were simulated to identify the possible pathways for the degradation. On the basis of activation free energy analysis, degradation pathways initiating with both •OH addition and H abstraction were determined to be feasible. The ortho-C of benzene ring was the most favourable site for •OH addition, while H atom of phenolic hydroxyl group was more susceptible (or more reactive) for H-atom abstraction route.
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Affiliation(s)
- Kuldeep Roy
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781 039, Assam, India
| | - Vijayanand S Moholkar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781 039, Assam, India.
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19
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Zou S, Chen Q, Liu Y, Pan Y, Yao G, Pan Z, Lai B. The capacity and mechanisms of various oxidants on regulating the redox function of ZVI. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Ding C, Zeng WA, Zhao AJ, Yang M, Xie Y, Deng Y, Gong D, Duan M, Cai H, Xie P, Zhou Y, Wen Z. Montmorillonite-supported nanoscale zero-valent iron for thiamethoxam removal: response surface optimization and degradation pathway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23113-23122. [PMID: 33439443 DOI: 10.1007/s11356-020-12309-3] [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: 07/17/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
As a highly efficient insecticide, thiamethoxam was widely used in the world. However, it was bioaccumulative and toxic to aquatic organisms that must be removed from water. In this work, nanoscale zero-valent iron particles loaded on montmorillonite (nZVI/Mt) were successfully synthesized for effective removal of thiamethoxam. The properties of nZVI/Mt for the removal of thiamethoxam were investigated, and the reaction conditions were optimized through response surface methodology. Furthermore, the degradation products were analyzed by liquid chromatography-mass spectrometry (LC/MS). The results demonstrated that the reaction activity of nZVI was enhanced because the agglomeration and oxidation of nZVI particles were effectively inhibited by using montmorillonite as a support. The significance of the effects of each factor on the removal of thiamethoxam was determined to be in the order of pH ˃ temperature ˃ reaction time ˃ nZVI/Mt dosage. The optimal conditions were as follows: a dosage of nZVI/Mt of 2 g/L, a reaction time of 2 h, a reaction temperature of 35 °C, and a solution pH of 3. The removal efficiency of thiamethoxam (C0 = 20 mg/L) was observed to be as high as 94.29% under the optimal conditions, which was close to the value of 94.47% that was predicted using the mathematical model, indicating that the model could accurately predict the removal efficiency of thiamethoxam. The degradation mechanism involved the -NO2 group on the thiamethoxam molecule was reduced and eliminated by nZVI/Mt.
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Affiliation(s)
- Chunxia Ding
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China.
| | - Wei-Ai Zeng
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China.
| | - A-Juan Zhao
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China.
| | - Mengyun Yang
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China
| | - Yanlan Xie
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China
| | - Yaocheng Deng
- College of Resource and Environment, Hunan Agricultural University, Changsha, 410082, China
| | - Daoxin Gong
- College of Resource and Environment, Hunan Agricultural University, Changsha, 410082, China
| | - Meizheng Duan
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China
| | - Hailin Cai
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China
| | - Pengfei Xie
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China
| | - Yong Zhou
- Hunan Institute of Biotechnology, Changsha, 410128, China
| | - Zhiyong Wen
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China
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21
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Degradation Kinetics of Methyl Orange Dye in Water Using Trimetallic Fe/Cu/Ag Nanoparticles. Catalysts 2021. [DOI: 10.3390/catal11040428] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The release of azo dye contaminants from textile industries into the environment is an issue of major concern. Nanoscale zerovalent iron (nZVI) has been extensively studied in the degradation of azo dye pollutants such as methyl orange (MO). In this study, iron was coupled with copper and silver to make trimetallic Fe/Cu/Ag nanoparticles, in order to enhance the degradation of MO and increase reactivity of the catalyst by delaying the rate of oxidation of iron. The synthesis of the trimetallic nanoparticles (Fe/Cu/Ag) was carried out using the sodium borohydride reduction method. The characterization of the particles was performed using XRD, XPS, EDX, and TEM. The analyses confirmed the successful synthesis of the nanoparticles; the TEM images also showed the desired structures and geometry of the nanoscale zerovalent iron particles. The assessment of the nanoparticles in the degradation of methyl orange showed a notable degradation within few minutes into the reaction. The effect of parameters such as nanoparticle dosage, initial MO concentration, and the solution pH on the degradation of MO using the nanoparticles was investigated. Methyl orange degradation efficiency reached 100% within 1 min into the reaction at a low pH, with lower initial MO concentration and higher nanoparticle dosage. The degradation rate of MO using the nanoparticles followed pseudo first-order kinetics and was greatly influenced by the studied parameters. Additionally, LC-MS technique confirmed the degradation of MO within 1 min and that the degradation occurs through the splitting of the azo bond. The Fe/Cu/Ag trimetallic nanoparticles have proven to be an appropriate and efficient alternative for the treatment of dye wastewater.
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22
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Zhang S, Zhu J, Zhang X, Zhu R, Ge F, Xu Y. The removal mechanism of nitrobenzene by the Cu-Fe/Carbon material under different aeration conditions. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123584. [PMID: 33264851 DOI: 10.1016/j.jhazmat.2020.123584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/13/2020] [Accepted: 07/24/2020] [Indexed: 06/12/2023]
Abstract
Zero-valent Cu-Fe bimetallic porous carbon materials were successfully applied to remediate organic wastewater. In this work, we successfully recycled the layered double hydroxides (LDHs) adsorbed with Orange II (OII) to form a zero-valent Cu-Fe bimetallic porous carbon material (CuFe/Carbon). The characterization results showed that CuFe/Carbon was a zero-valent Cu-Fe bimetallic porous graphene-like carbon material. In the course of the experiment, we found that aeration condition had a great influence on the activity of CuFe/Carbon. The removal efficiency of nitrobenzene (NB) was 100 % in nitrogen system and 48 % in air system. The active species of O2- and OH was formed under air condition, while there was no active species under nitrogen condition. NB was reduced to aniline directly under nitrogen condition. We proposed there were reduction and oxidation mechanisms under different aeration conditions. This work mainly investigated the conversion process of a novel material under different reaction conditions, which provided theoretical support for the removal of organic matters.
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Affiliation(s)
- Sisi Zhang
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Jiayi Zhu
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Xiwang Zhang
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Runliang Zhu
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Fei Ge
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Yin Xu
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China.
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23
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Liu H, Qin YN, Li HY, Gai LX, An QD, Zhai SR, Xiao ZY, Cui L. Promotional effect of embedded Ni NPs in alginate-based carbon toward Pd NPs efficiency for high-concentration p-nitrophenol reduction. Int J Biol Macromol 2021; 173:160-167. [PMID: 33482204 DOI: 10.1016/j.ijbiomac.2021.01.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/02/2021] [Accepted: 01/17/2021] [Indexed: 11/28/2022]
Abstract
Noble metal-based catalytic material with maximum utilization is of prime attraction for conserving rare metal resources. Herein, highly dispersion Ni nanoparticles (NPs)-modified N-doped mesoporous carbon material (Ni-N@C) was fabricated by pyrolysis of Ni2+/Histidine cross-linked alginate hydrogels. In a step forward, the obtained Ni-N@C nanocatalyst was treated by the solution of Pd2+, and tiny amount of Pd NPs were deposited on the surface of Ni via the reducibility of Ni to achieve the high dispersion of precious metals material. In the degradation of highly-concentration p-nitrophenol, the catalyst presents excellent performance which could completely degrade pollutants within a very short period. It was demonstrated that pre-embedded Ni NPs could not only increase the efficiency of Pd NPs but also endow the facile separation characteristic to the catalyst. Besides, the catalyst maintained favorable catalytic capacity even after five reaction cycles. In brief, this work may provide novel guidance for the maximum utilization of noble metal-modified mesoporous N-doped carbon-supported catalysts in practical applications of industrial and the treatment highly-concentration p-nitrophenol.
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Affiliation(s)
- Hao Liu
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Ya-Nan Qin
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Hao-Yu Li
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Li-Xue Gai
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Qing-da An
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Shang-Ru Zhai
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Zuo-Yi Xiao
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Li Cui
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
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24
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Ding J, Xu W, Liu S, Liu Y, Tan X, Li X, Li Z, Zhang P, Du L, Li M. Activation of persulfate by nanoscale zero-valent iron loaded porous graphitized biochar for the removal of 17β-estradiol: Synthesis, performance and mechanism. J Colloid Interface Sci 2020; 588:776-786. [PMID: 33309141 DOI: 10.1016/j.jcis.2020.11.111] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 02/08/2023]
Abstract
In this work, the porosity, graphitization and iron doping of biochar were realized simultaneously by the pyrolysis of biomass and potassium ferrate (K2FeO4), then the iron-doped graphitized biochar was reduced to synthesize nanoscale zero-valent iron loaded porous graphitized biochar (nZVI/PGBC). 17β-estradiol (E2) is an environmental endocrine disruptor that can cause great harm to the environment in small doses. Experiments illustrated that nZVI/PGBC (100 mg/L) could completely remove E2 (3 mg/L) within 45 min by activating sodium persulfate (PS, 400 mg/L). The E2 removal efficiency of nZVI/PGBC was obviously superior to that of pristine biochar (BC), iron-doped graphitized biochar (Fe/GBC), nanoscale zero-valent iron (nZVI) and porous graphitized biochar (PGBC). The removal efficiency could be affected by reaction conditions, including reaction temperature, acidity, dosage of catalyst and oxidant and water matrix. Quenching experiments and electron spin resonance (ESR) demonstrated that SO4-· and HO were both responsible for E2 degradation. This study indicated that Fe0 and Fe2+ were the main catalytic active substances, while the catalytic ability of PGBC was not obvious. The reaction mechanism was proposed, that is, PS was activated by electrons provided by the redox reaction between Fe2+ and Fe3+, and PGBC acted as the carrier of nZVI, the adsorbent of E2 and the mediator of electron-transfer. This study demonstrates that nZVI/PGBC can be used as an effective activator for PS to remove organic pollutants in water.
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Affiliation(s)
- Jinglin Ding
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Weihua Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Shaobo Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; School of Architecture and Art, Central South University, Changsha, 410083, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xin Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zhongwu Li
- College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, China
| | - Peng Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Li Du
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Meifang Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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25
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Qu G, Chu R, Wang H, Wang T, Zhang Z, Qiang H, Liang D, Hu S. Simultaneous removal of chromium(VI) and tetracycline hydrochloride from simulated wastewater by nanoscale zero-valent iron/copper-activated persulfate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:40826-40836. [PMID: 32677009 DOI: 10.1007/s11356-020-10120-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
In this paper, metallic copper (Cu) was supported on nanoscale zero-valent iron (nZVI) to form a nanoscale bimetallic composite (nZVI-Cu), which was used to activate persulfate (PS) to simultaneously remove the compound contaminants Cr(VI) and tetracycline hydrochloride (TCH) in simulated wastewater. nZVI, nZVI-Cu, and nZVI-Cu-activated PS (nZVI-Cu/PS) were characterized by SEM, TEM, XRD, and XPS. The effects of the bimetallic composite on Cr(VI) and TCH removal were compared in the nZVI, nZVI-activated PS (nZVI/PS), nZVI-Cu, and nZVI-Cu/PS systems. The results showed that nZVI and Cu can form a nanobimetallic system, which can create galvanic cells; thus, the galvanic corrosion of nZVI and the transfer of electrons are accelerated. For a single contaminant, the removal efficiency of Cr(VI) and TCH is the highest when nZVI is loaded with 3 wt% and 1 wt% Cu, respectively. The ratio of nZVI-Cu with 3 wt% Cu to PS is 7:1, and the removal efficiency of Cr(VI) and TCH compound contaminants is ~ 100% after 60 min under acidic conditions, which indicates that the Cr(VI) reduction and TCH oxidation were complete in the nZVI-Cu/PS system. The mechanisms of simultaneous removal of Cr(VI) and TCH in the nZVI-Cu/PS system are proposed. The removal of Cr is because of the adsorption-reduction effects of the nZVI-Cu bimetallic material. The degradation of TCH is mainly due to the action of oxidative free radicals generated by Fe2+-activated PS. The free radical capture experiments showed that SO- 4· plays a major role in the process of TCH degradation.
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Affiliation(s)
- Guangzhou Qu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China.
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shanxi, People's Republic of China.
| | - Rongjie Chu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
| | - Hui Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
| | - Tiecheng Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shanxi, People's Republic of China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shanxi, People's Republic of China
| | - Hong Qiang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shanxi, People's Republic of China
| | - Dongli Liang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shanxi, People's Republic of China
| | - Shibin Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shanxi, People's Republic of China
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shanxi, People's Republic of China
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26
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Feng S, Zhang P, Duan W, Li H, Chen Q, Li J, Pan B. P-nitrophenol degradation by pine-wood derived biochar: The role of redox-active moieties and pore structures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 741:140431. [PMID: 32615434 DOI: 10.1016/j.scitotenv.2020.140431] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 06/11/2023]
Abstract
Biochar can both adsorb and degrade p-nitrophenol (PNP); however, the PNP degradation mechanism has not been well investigated. We prepared two biochars at pyrolysis temperatures of 500 °C (B500) and 700 °C (B700). Although B500 showed much stronger free radical signals (which are associated with organic degradation, according to previous studies), the apparent PNP degradation was approximately 3 times higher in the B700 system. The degradation increased significantly after the biochars were washed with water. According to a quantitative analysis of the sorption and degradation and two-compartment first-order kinetics modeling of the apparent removal kinetics, sorption occurred mainly in the initial period, whereas degradation continued throughout the removal process. The PNP degradation rate constant depended mainly on the external surface area at a relatively low concentration (200 mg/L) and was controlled by the microporous surface area at a relatively high concentration (800 mg/L). In addition, the apparent degradation did not depend on the biochar particle size. Therefore, PNP degradation may be related to the three-dimensional structure of the biochar in addition to the exposed external surface. The well-developed pore structure, more accessible surface, and larger electron exchange capacity of B700 may promote electron transfer between the biochar and PNP, and thus accelerate PNP degradation. This study demonstrates that various properties of the biochar may contribute to PNP degradation.
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Affiliation(s)
- Shihui Feng
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Peng Zhang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China.
| | - Wenyan Duan
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Hao Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Quan Chen
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Jing Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Bo Pan
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China.
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27
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Khajeh M, Amin MM, Taheri E, Fatehizadeh A, McKay G. Influence of co-existing cations and anions on removal of direct red 89 dye from synthetic wastewater by hydrodynamic cavitation process: An empirical modeling. ULTRASONICS SONOCHEMISTRY 2020; 67:105133. [PMID: 32334379 DOI: 10.1016/j.ultsonch.2020.105133] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/26/2020] [Accepted: 04/15/2020] [Indexed: 06/11/2023]
Abstract
In the present study the evaluation of Direct Red 89 (DR89) dye removal from synthetic wastewater by a lab-scale hydrodynamic cavitation (HC) process has been investigated under different operational conditions; the influence of co-existing cations and anions was applied using synthetic wastewater to assess whether the DR89 removal was enhanced. To study the effect of operational parameters, an empirical approach was adopted for the modeling of the HC process. The results showed that the DR89 degradation rate was strongly influenced by solution pH, reaction time and initial DR89 concentration. The removal efficiencies of DR89 were enhanced remarkably with the reaction time increment. When the initial concentration of DR89 increased from 30 to 90 mg/L, the DR89 removal efficiency decreased from 36.3 ± 3.8% to 17.5 ± 2.5%. In addition, the highest DR89 removal efficiency (75.4 ± 3.4%) was observed at a solution pH of 3. At a solution pH of 8, the DR89 removal efficiency was 18.4 ± 1.1%. An initial DR89 concentration of 80 mg/L was 75.4 ± 5.1% degraded after 130 min at a solution pH of 3. The results indicated that a synergistic effect occurred due to the added ions except for HCO3-. The removal of DR89 by the HC process was extremely enhanced with NO3‾ ions with synergetic index higher than 2.5. Kinetic studies revealed that the decolorization of DR89 by HC followed a first order kinetic mechanism. The comparison between the predicted results of the empirical model and experimental data was also conducted. The empirical model described the DR89 removal efficiency under different conditions (R2: 0.93) and the results showed the HC reaction to be a useful technology for the treatment of dye in the textile wastewater.
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Affiliation(s)
- Mahsa Khajeh
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mehdi Amin
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ensiyeh Taheri
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Fatehizadeh
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Gordon McKay
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
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Wu J, Zhao J, Hou J, Xing B. The Fate of p-Nitrophenol in Goethite-Rich and Sulfide-Containing Dynamic Anoxic/Oxic Environments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:9427-9436. [PMID: 32628455 DOI: 10.1021/acs.est.0c02486] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reaction mechanisms between sulfide and iron (hydr)oxides are well-documented; however, the effect of sulfidation of iron (hydr)oxides on the fate of contaminants in dynamic anoxic/oxic environments is largely overlooked. Taking p-nitrophenol (p-NP) as a targeted contaminant, we studied its fate during the sulfidation of goethite in dynamic anoxic/oxic environments. In anoxic environments, the adsorbed p-NP on goethite was sharply released in the presence of S(-II) at two different concentrations (denoted as G1 and G2, respectively) due to lower affinity of p-NP on ═Fe-SH than ═Fe-OH. Then, the desorbed p-NP in the G1 system was completely reduced to p-aminophenol (p-AP), while negligible change of p-NP concentration occurred in the G2 system, which was ascribed to the generation of Fe(II)-bound goethite with high reactivity toward p-NP at G1. When the environments shifted to oxic conditions, the structural Fe(II) of FeS produced plenty of •OH in G1 and G2 through Fenton-like reaction, which attacked p-NP and p-AP toward complete degradation. Our study demonstrated that sulfidation of goethite and shift of redox conditions could be crucial factors in controlling the fate of p-NP, which needs to be considered when predicting the environmental fate of p-NP.
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Affiliation(s)
- Jun Wu
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
- CAS Key Laboratory for Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Jian Zhao
- Institute of Coastal Environmental Pollution Control, and Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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29
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Catalytic reduction of organic and hexavalent chromium pollutants with highly active bimetal CuBiOS oxysulfide catalyst under dark. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116769] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Enhancement of Photocatalytic and Sonophotocatalytic Degradation of 4-nitrophenol by ZnO/Graphene Oxide and ZnO/Carbon Nanotube Nanocomposites. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112507] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Tang Q, Li B, Ma W, Gao H, Zhou H, Yang C, Gao Y, Wang D. Fabrication of a double-layer membrane cathode based on modified carbon nanotubes for the sequential electro-Fenton oxidation of p-nitrophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:18773-18783. [PMID: 32207003 DOI: 10.1007/s11356-020-08364-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 03/09/2020] [Indexed: 06/10/2023]
Abstract
To improve the electrocatalytic efficiency of the cathode and provide a wider pH range in the electro-Fenton process, N-doped multi-walled carbon nanotubes (NCNTs) and ferrous ion complexed with carboxylated carbon nanotubes (CNT-COOFe2+) were used to fabricate the diffusion layer and catalyst layer of a membrane cathode, respectively. The morphology, structure, and composition of CNT-COOFe2+ were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The oxygen reduction performance of NCNT was evaluated using cyclic voltammetry (CV) and the rotating disk electrode technique (RDE). In addition, a potential application of the cathode in sequential electro-Fenton degradation of p-nitrophenol (p-NP) was investigated. The results revealed that iron was successfully doped on the carboxylated carbon nanotubes in ionic complexation form and the content of iron atoms in CNT-COOFe2+ was 2.65%. Furthermore, the defects on the tube walls provided more reactive sites for the electro-Fenton process. A combination of CV and RDE data indicated that NCNT had better electrocatalytic H2O2 generation activity with a more positive onset potential and higher cathodic peak current response than CNT. A p-NP removal rate of 96.04% was achieved within 120 min, and a mineralization efficiency of 80.26% was obtained at 180 min in the sequential electro-Fenton process at a cathodic potential of - 0.7 V vs SCE and neutral pH. The activity of the used cathode was restored simply through electro-reduction at - 1.0 V vs SCE, and a p-NP removal rate of more than 70% was obtained at 60 min after six regeneration cycles.
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Affiliation(s)
- Qian Tang
- Key Laboratory of Environmental Materials and Pollution Control, The Education Department of Jilin Province, Jilin Normal University, Siping, 136000, China.
- School of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China.
| | - Binglun Li
- School of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China
| | - Wenge Ma
- School of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China
| | - Hang Gao
- School of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China
| | - Hao Zhou
- School of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China
| | - Chunwei Yang
- Key Laboratory of Environmental Materials and Pollution Control, The Education Department of Jilin Province, Jilin Normal University, Siping, 136000, China.
- School of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China.
| | - Yonghui Gao
- Key Laboratory of Environmental Materials and Pollution Control, The Education Department of Jilin Province, Jilin Normal University, Siping, 136000, China
| | - Dong Wang
- School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
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32
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Ren J, Li H, Li N, Song Y, Chen J, Zhao L. A three-dimensional electrode bioelectrochemical system for the advanced oxidation of p-nitrophenol in an aqueous solution. RSC Adv 2020; 10:17163-17170. [PMID: 35521450 PMCID: PMC9053451 DOI: 10.1039/c9ra08538f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 02/10/2020] [Indexed: 11/25/2022] Open
Abstract
Three-dimensional electrodes serve as more efficient cathodes for the in situ generation of H2O2 in microbial fuel cells (MFCs) than two-dimensional electrodes and possess significant electric potentials in the advanced oxidation of organics. In this study, we investigated the performance of a three-dimensional MFC-Fenton system in degrading p-nitrophenol (PNP) in an aqueous solution with the objective of optimizing the operating parameters, including the initial pH, iron dosage, and loading resistance. A corresponding reaction pathway for PNP in the system was also proposed. The results showed that the three-dimensional electrode bioelectrochemical system efficiently oxidized PNP and removed total organic carbon over a short period (64 h). In addition, experiments showed that a lower initial pH enhanced the removal of PNP by the system. The highest removal efficiency of PNP was achieved with an initial iron concentration of 0.025 mol L−1, and a lower or higher iron concentration resulted in decreased PNP degradation. Furthermore, the treatment capacity of the system was remarkably enhanced at a low loading resistance of 20 Ω. Under optimal conditions, the three-dimensional MFC-Fenton system achieved 95.7% PNP removal (within 8 h). Furthermore, the system showed a stable high treatment efficiency of approximately 90% for low PNP concentrations in wastewater over as long as 96 h. PNP absorbed in and surrounded by GPEs has kinetic favorability in the degradation process by a three-dimensional electrode MFC-Fenton system.![]()
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Affiliation(s)
- Jing Ren
- School of Environment Sciences, Liaoning University Shenyang 110036 China.,Department of Environmental Science and Engineering, Tianjin University Tianjin 300072 China
| | - Haoxin Li
- School of Environment Sciences, Liaoning University Shenyang 110036 China
| | - Na Li
- School of Environment Sciences, Liaoning University Shenyang 110036 China
| | - Youtao Song
- School of Environment Sciences, Liaoning University Shenyang 110036 China
| | - Jiayi Chen
- Department of Environmental Science and Engineering, Tianjin University Tianjin 300072 China
| | - Lin Zhao
- Department of Environmental Science and Engineering, Tianjin University Tianjin 300072 China
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33
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Xu Z, Sun Z, Zhou Y, Zhang D, Gao Y, Huang Y, Chen W. Enhanced hydrodechlorination of p-chloronitrobenzene by a GAC-Fe-Cu ternary micro-electrolysis system: Synergistic effects and removal mechanism. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116391] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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34
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Wang Y, Guo S, Gu Z, Zhang A. Comparison study on microwave irradiation-activated persulfate and hydrogen peroxide systems in the treatment of dinitrodiazophenol industrial wastewater. CHEMOSPHERE 2020; 242:125139. [PMID: 31704523 DOI: 10.1016/j.chemosphere.2019.125139] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 09/10/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
In this study, refractory organics in industrial wastewater containing dinitrodiazophenol (DDNP) were treated by microwave (MW) irradiation-activated persulfate (PS) and hydrogen peroxide (H2O2). The organics degradation effect of MW output power, oxidant dosage and initial pH were investigated. Spectral analysis and radical scavenging experiments were used to investigate the degradation pathway and identify reactive oxygen species in the two systems. As the MW output power increased, kobs of both systems increased, but excessively high-power output inhibited organics degradation in the MW-PS system. The impact of initial pH on MW-PS system performance was not obvious compared to that of the MW-H2O2 system (in which alkalinity significantly limited the reaction with organics). Under the same reaction condition, COD removals reached 89.89% (MW-PS) and 54.56% (MW-H2O2) and biodegradability improved from 0.060 to 0.561 (MW-PS) and 0.535 (MW-H2O2). In addition, SO4and ·OHwere identified in the MW-PS system but only ·OHexisted in the MW-H2O2 system, indicating that the MW-PS system could oxidize more types of organics in DDNP wastewater than the MW-H2O2 system. Furthermore, UV-Vis and FITR analyses showed that organics with diazo groups and nitro-groups could be decomposed and intermediate products with C-O-H (which are biodegradable) will be generated. The MW-PS system also produced a better economic benefit than the MW-H2O2 system. Therefore, this study provides valuable references for the use of MW irradiation-activated oxidants to treat DDNP industrial wastewater.
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Affiliation(s)
- Ying Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Shengpeng Guo
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, China
| | - Zhepei Gu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Aiping Zhang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China.
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Li X, Li C, Gao G, Lv B, Xu L, Lu Y, Zhang G. In-situ self-assembly of robust Fe (III)-carboxyl functionalized polyacrylonitrile polymeric bead catalyst for efficient photo-Fenton oxidation of p-nitrophenol. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 702:134910. [PMID: 31710850 DOI: 10.1016/j.scitotenv.2019.134910] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
From the view of channel confinement and functional site capture, we develop an in-situ self-assembly strategy to fabricate the carboxyl functionalized Fe-HPAN bead catalyst with highly stable and uniformly dispersed metallic sites for efficient photo-Fenton oxidation of p-nitrophenol (p-NP). BET and FTIR analysis reveal that numerous carboxyl groups and mesopores exist in Fe-HPAN beads, which acts to capture and immobilize iron ions. Catalytic results show that the degradation rate and TOC removal for p-NP were up to 99.78 and 91.68% under the optimal condition. Even at near neutral pH, the degradation rate almost keep the same and the TOC removal can still reach 73.05%. Due to the autocatalytic cycle of FeIII/FeII, the apparent rate constant of Fe-HPAN (0.2247 min-1) was 5.4 times as high as unmodified Fe-PAN (0.0415 min-1) in the presence of H2O2 and visible light irradiation, which was 2-3 orders of magnitude larger than that of other reaction systems. More importantly, Fe-HPAN bead catalyst exhibited little loss of activity even after 20 cycles of re-utilization. The possible degradation pathway of p-NP was also proposed based on GC/MS analysis. The present work may provide a new perspective for the use of synthetic polymer to prepare low-cost, efficient and robust photo-Fenton oxidation catalysts.
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Affiliation(s)
- Xiong Li
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, 310014 Hangzhou, China
| | - Chang Li
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, 310014 Hangzhou, China
| | - Guanyu Gao
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, 310014 Hangzhou, China
| | - Bosheng Lv
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, 310014 Hangzhou, China
| | - Lusheng Xu
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, 310014 Hangzhou, China
| | - Yin Lu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Shuren Street 8#, Hangzhou 310015, China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, 310014 Hangzhou, China.
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36
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Shabanloo A, Salari M, Shabanloo N, Dehghani MH, Pittman CU, Mohan D. Heterogeneous persulfate activation by nano-sized Mn3O4 to degrade furfural from wastewater. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112088] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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37
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Li H, Zhu F, He S. The degradation of decabromodiphenyl ether in the e-waste site by biochar supported nanoscale zero-valent iron /persulfate. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109540. [PMID: 31400721 DOI: 10.1016/j.ecoenv.2019.109540] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
Biochar supported nano zero-valent iron (BC-nZVI) synthesized through liquid phase reduction method was used to activate persulfate (PS) for the removal of decabromodiphenyl ether (BDE209) in the soil. The morphology, structure and composition of BC-nZVI were determined by SEM, XRD, XPS and FTIR. Batch experiments were carried out to investigate the effect of different factors, such as the molar ratio of PS to BC-nZVI, pH value of PS solution and reaction temperature, on the degradation efficiency of BDE209. Results showed that when the molar ratio of PS/BC-nZVI was 3:1, pH value was 3, reaction temperature was 40 °C, 82.06% of BDE209 could be removed within 240 min. The process fitted pseudo-first-order kinetics model well and the apparent activation energy (Ea) was 48.92 kJ mol-1, indicating that the process was controlled by surface reaction. The quenching experiments showed that ·SO4- was predominate radical species in the degradation process in acid and neutral condition. However, ·OH played more important role in alkaline condition. GC-MS was used to determine the reaction products for inferring the degradation pathway of BDE209 in soil by BC-nZVI/PS system.
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Affiliation(s)
- Haihong Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, PR China
| | - Fang Zhu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, PR China.
| | - Siying He
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, PR China
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Wang S, Niu S, Li H, Lam KK, Wang Z, Du P, Leung CW, Qu S. Synthesis and controlled morphology of Ni@Ag core shell nanowires with excellent catalytic efficiency and recyclability. NANOTECHNOLOGY 2019; 30:385603. [PMID: 31174195 DOI: 10.1088/1361-6528/ab27ce] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ni@Ag core shell nanowires (NWs) were prepared by in situ chemical reduction of Ag+ around NiNWs as the inner core. Different Ni@Ag NWs with controllable morphologies were achieved through the layer-plus-island growth mode and this mechanism was confirmed by scanning electron microscopy, X-ray fluorescence, and X-ray photoelectron spectroscopy analyses. When used as a catalyst, the synthesized Ni@Ag NWs exhibited high reduction efficiency by showing a high reaction rate constant k of 0.408 s-1 in reducing 4-nitrophenol at room temperature. Besides, combining the magnetic property, including high saturation magnetization and low coercivity, the magnetic NiNW core contributes to excellent recyclability and long-term stability with only a 2.2% performance loss after 10 recycles by magnets. The Ni@Ag NWs proposed here show unprecedentedly high potential in applications requiring high efficiency and a recyclable catalyst.
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Affiliation(s)
- Shan Wang
- State Key Lab of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang province, 310027, People's Republic of China
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Preparation of Biomass Activated Carbon Supported Nanoscale Zero-Valent Iron (Nzvi) and Its Application in Decolorization of Methyl Orange from Aqueous Solution. WATER 2019. [DOI: 10.3390/w11081671] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The nanoscale zero-valent iron (nZVI) has great potential to degrade organic polluted wastewater. In this study, the nZVI particles were obtained by the pulse electrodeposition and were loaded on the biomass activated carbon (BC) for synthesizing the composite material of BC-nZVI. The composite material was characterized by SEM-EDS and XRD and was also used for the decolorization of methyl orange (MO) test. The results showed that the 97.94% removal percentage demonstrated its promise in the remediation of dye wastewater for 60 min. The rate of MO matched well with the pseudo-second-order model, and the rate-limiting step may be a chemical sorption between the MO and BC-nZVI. The removal percentage of MO can be effectively improved with higher temperature, larger BC-nZVI dosage, and lower initial concentration of MO at the pH of 7 condition.
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Zhou H, Lv P, Qi H, Ma J, Wang J. Removal of residual functionalized ionic liquids from water by ultrasound-assisted zero-valent iron/activated carbon. ENVIRONMENTAL TECHNOLOGY 2019; 40:2504-2512. [PMID: 29464989 DOI: 10.1080/09593330.2018.1444101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/19/2018] [Indexed: 06/08/2023]
Abstract
Numerous applications of ionic liquids (ILs) are often accompanied by the generation of aqueous wastes. Due to the high toxicity and poor biodegradability of ILs, effective chemical treatment is of great importance for their removal from aqueous solution. In this work, an ultrasound-assisted zero-valent iron/activated carbon (US-ZVI/AC) micro-electrolysis technique was used to degrade residual functionalized ILs, 1-butyl-3-methyl benzimidazolium bromide ([BMBIM]Br) and 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) in aqueous solution, and the degradation degree, degradation kinetics and possible degradation pathways were investigated. It was shown that the degradation of these functionalized ILs was highly efficient in the US-ZVI/AC system, and the degradation degree was as high as 96.1% and 92.9% in 110 min for [BMBIM]Br and [AMIM]Cl, respectively. The degradation of [BMBIM]Br could be described by the second-order kinetics model, and [BMBIM]+ was decomposed in two ways: (i) sequential cleavage of N-alkyl side chain of the cation produced three intermediates; (ii) the 2-positioned H atoms of the benzimidazolium ring were first oxidized, and then the imidazolium ring was opened. The degradation of [AMIM]Cl followed the first-order kinetics rule, and the 2,4,5-positioned H atoms of the imidazolium ring were oxidized to induce ring opening. In addition, the removal of total organic carbon was found to be >87%, which indicates that most of the ILs was mineralized in the degradation process. These results suggest that ultrasound-assisted ZVI/AC micro-electrolysis is highly effective for the removal of residual functionalized ILs from aqueous environment.
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Affiliation(s)
- Haimei Zhou
- a Faculty of Forensic Medicine, Henan University of Science and Technology , Luoyang , Henan , People's Republic of China
| | - Ping Lv
- a Faculty of Forensic Medicine, Henan University of Science and Technology , Luoyang , Henan , People's Republic of China
| | - Hang Qi
- a Faculty of Forensic Medicine, Henan University of Science and Technology , Luoyang , Henan , People's Republic of China
| | - Jinqi Ma
- a Faculty of Forensic Medicine, Henan University of Science and Technology , Luoyang , Henan , People's Republic of China
| | - Jianji Wang
- b School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University , Xinxiang , Henan , People's Republic of China
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Pang Y, Ruan Y, Feng Y, Diao Z, Shih K, Hou L, Chen D, Kong L. Ultrasound assisted zero valent iron corrosion for peroxymonosulfate activation for Rhodamine-B degradation. CHEMOSPHERE 2019; 228:412-417. [PMID: 31048238 DOI: 10.1016/j.chemosphere.2019.04.164] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
In this work, ultrasound (US) irradiation assisted powder zero valent iron (ZVI) corrosion was conducted for peroxymonosulfate (PMS) activation. PMS activation activity was evaluated by Rhodamine-B (Rh B) degradation efficiency. The other US/PMS, ZVI/PMS, Fe2+/PMS and US/PMS/Fe2+ systems were performed to investigate the synergistic effects of US and ZVI on PMS activation activity. US/PMS/ZVI system performed the highest activity of Rh B degradation. 99.76% of Rh B was removed within 12 min under the optimum condition (pH = 4.5, ZVI dosage = 1 g/L, PMS = 1 mM, US power = 50 W). A comparison of US/PMS/ZVI system with PMS/ZVI and homogeneous US/PMS/Fe2+ systems for Rh B degradation was conducted, indicating that ultrasound irradiation contributed to acceleration of ZVI corrosion and removal of passive films. Besides, the electrons transformation from Fe0 to PMS made main contribution to the generation of sulfate radical, which resulted in the ability of degradation of Rh B. ZVI could be reused for five cycles with efficient activity of PMS activation. Exhaustion of ZVI led to the decrease in PMS activation at the sixth recycle. Thus, this work presents important information on understanding reuse of iron fillings for PMS/PS activation in practical application of pollution remediation.
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Affiliation(s)
- Yixiong Pang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Rural Non-point Source Pollution Comprehensive Management Technology Center of Guangdong Province, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Yang Ruan
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Rural Non-point Source Pollution Comprehensive Management Technology Center of Guangdong Province, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Yong Feng
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Zenghui Diao
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Li'an Hou
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Rural Non-point Source Pollution Comprehensive Management Technology Center of Guangdong Province, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Diyun Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Rural Non-point Source Pollution Comprehensive Management Technology Center of Guangdong Province, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Lingjun Kong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Rural Non-point Source Pollution Comprehensive Management Technology Center of Guangdong Province, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China.
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Miao J, Lu J, Jiang H, Liu Y, Xing W, Ke X, Chen R. Continuous and complete conversion of high concentration
p
‐nitrophenol in a flow‐through membrane reactor. AIChE J 2019. [DOI: 10.1002/aic.16692] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jianfeng Miao
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech University Nanjing People's Republic of China
| | - Jia Lu
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech University Nanjing People's Republic of China
| | - Hong Jiang
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech University Nanjing People's Republic of China
| | - Yefei Liu
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech University Nanjing People's Republic of China
| | - Weihong Xing
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech University Nanjing People's Republic of China
| | - Xuebin Ke
- School of Engineering and Computer ScienceUniversity of Hull Hull UK
| | - Rizhi Chen
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech University Nanjing People's Republic of China
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Wang B, Tian K, Xiong X, Ren H. Treatment of overhaul wastewater containing N-methyldiethanolamine (MDEA) through modified Fe-C microelectrolysis-configured ozonation: Investigation on process optimization and degradation mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:655-664. [PMID: 30826558 DOI: 10.1016/j.jhazmat.2019.02.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 02/16/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
In this study, the microelectrolysis system was applied to generate strong reductants, such as free hydrogen [H] and O∙, and thus removing N-Methyldiethanolamine (MDEA) in overhaul wastewater. Effects of initial influent pH, mass ratio of filings to wastewater, air aeration rate, and reaction temperature on the removal of MDEA were investigated intensively. Experimental results indicate that optimum removal rate of MDEA can be obtained at pH = 2, inlet air rate = 1 L min-1, mass ratio of filings to wastewater = 1:1 and temperature = 25 °C. About 96.0% Total Organic Carbon (TOC) in overhaul wastewater can be mineralized by ozonation-microelectrolysis-ozonation (OMIO) treatment process. By analyzing the effluent at various stages, it was established that microelectrolysis played a leading role in the destruction of MDEA. The degradation mechanism of MDEA has been clarified through detecting the degradation products with Gas Chromatography-Mass Spectrometer (GC-MS). Subsequently, ozone reacts with intermediate products generated by MDEA degration through OH· pathway under alkaline condition. In short, these results suggest that OMIO system should be proposed as a promising treatment process for the MDEA wastewater.
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Affiliation(s)
- Bing Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China; Sichuan Provincial Key Laboratory of Environmental Pollution Prevention on Oil and Gas Fields and Environmental Safety, Chengdu 610500, PR China.
| | - Kun Tian
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Xingaoyuan Xiong
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Hongyang Ren
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
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de Sousa PVF, de Oliveira AF, da Silva AA, Lopes RP. Environmental remediation processes by zero valence copper: reaction mechanisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:14883-14903. [PMID: 30972682 DOI: 10.1007/s11356-019-04989-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Recent studies have shown Cu(0) as a promising material for the removal of organic and inorganic pollutants. However, there is no review addressing the studies performed. This fact may be related to the toxicity of the particles and the copper released in solution that has not motivated researchers, which entails in a reduced number of publications. However, studies point out how to solve the problem of Cu deposition in support materials. In this work, a detailed review of Cu(0) applications was performed. The specific focus was the reaction mechanisms related to adsorption, oxidation, and reduction processes. Initially, the resources that allow the understanding of the reaction mechanism, such as characterization techniques and the experimental conditions for investigation of the species involved in the process, were presented. The studies were evaluated separately, showing the mechanisms involved only with the application of Cu(0) in pure and isolated form and in association with oxidizing or reductive agents, combined with irradiation sources and ultrasonic waves and in the form supported in polymer matrices. It was verified that by the proposed reaction mechanisms, the exclusive participation of Cu(0), being the removal process, explained only by the redox behavior of copper. Therefore, the review showed the need for future research regarding the redox behavior of the contaminants.
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Affiliation(s)
| | | | | | - Renata Pereira Lopes
- Chemistry Department, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil.
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Zhang Y, Xu X, Pan Y, Xu L, Zhou M. Pre-magnetized Fe0 activated persulphate for the degradation of nitrobenzene in groundwater. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.074] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li H, Zhou B. Degradation of atrazine by catalytic ozonation in the presence of iron scraps: performance, transformation pathway, and acute toxicity. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:432-440. [PMID: 30821587 DOI: 10.1080/03601234.2019.1574175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Degradation of atrazine by catalytic ozonation in the presence of iron scraps (ZVI/O3) was carried out. The key operational parameters (i.e., initial pH, ZVI dosage, and ozone dosage) were optimized by the batch experiments, respectively. This ZVI/O3 system exhibited much higher degradation efficiency of atrazine than the single ozonation, ZVI, and traditional ZVI/O2 systems. The result shows that the pseudo-first-order constant (0.0927 min-1) and TOC removal rate (86.6%) obtained by the ZVI/O3 process were much higher than those of the three control experiments. In addition, X-ray diffraction (XRD) analysis indicates that slight of γ-FeOOH and Fe2O3 were formed on the surface of iron scrap after ZVI/O3 treatment. These corrosion products exhibit high catalytic ability for ozone decomposition, which could generate more hydroxyl radical (HO•) to degrade atrazine. Six transformation intermediates were identified by liquid chromatography-mass spectrometry (LC-MS) analysis in ZVI/O3 system, and the degradation pathway of atrazine was proposed. Toxicity tests based on the inhibition of the luminescence emitted by Photobacterium phosphoreum and Vibrio fischeri indicate the detoxification of atrazine by ZVI/O3 system. Finally, reused experiments indicate the approving recyclability of iron scraps. Consequently, the ZVI/O3 system could be as an effective and promising technology for pesticide wastewater treatment.
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Affiliation(s)
- Haishen Li
- a School of Architecture and Environment , Sichuan University , Chengdu , China
| | - Bo Zhou
- a School of Architecture and Environment , Sichuan University , Chengdu , China
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Wang N, Fang D, Zheng G, Liang J, Zhou L. A novel approach coupling ferrous iron bio-oxidation and ferric iron chemo-reduction to promote biomineralization in simulated acidic mine drainage. RSC Adv 2019; 9:5083-5090. [PMID: 35514646 PMCID: PMC9060654 DOI: 10.1039/c8ra09887e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 01/24/2019] [Indexed: 12/03/2022] Open
Abstract
A novel Acidithiobacillus ferrooxidans-mediated approach coupling biological oxidation and chemical reduction for treating acid mine drainage (AMD) was investigated. The results showed that controlled addition of zero valent iron (ZVI) into the coupling system did not exhibit a significant adverse influence on the bacterial activity of Acidithiobacillus ferrooxidans but markedly increased the formation of secondary Fe-minerals. Nutrition did not affect the efficiency of coupling process, except for the bacteria density of A. ferrooxidans. 2 days cyclic treatment performed better than that of 4 and 8 days. After 14 cycles of the coupling process, 89.4% of total iron (2.23 g L-1) was transferred into Fe-minerals finally. In addition, the combined system was highly effective in removing sulfate (63%) from a simulated AMD that contained soluble Cu, Zn, Al, and Mn. Valuable iron-sulfate material e.g. schwertmannite was formed with little co-precipitation of other metals. Therefore, the integration of A. ferrooxidans into the reduction by ZVI may have considerable potential in the enhancement of biomineralization efficiency, which may further decrease soluble TFe and sulfate loads in AMD before lime neutralization.
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Affiliation(s)
- Ning Wang
- College of Resources and Environmental Sciences, Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Di Fang
- College of Resources and Environmental Sciences, Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Guanyu Zheng
- College of Resources and Environmental Sciences, Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Jianru Liang
- College of Resources and Environmental Sciences, Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Lixiang Zhou
- College of Resources and Environmental Sciences, Nanjing Agricultural University Nanjing 210095 P. R. China
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Shi D, Zhu G, Zhang X, Zhang X, Li X, Fan J. Ultra-small and recyclable zero-valent iron nanoclusters for rapid and highly efficient catalytic reduction of p-nitrophenol in water. NANOSCALE 2019; 11:1000-1010. [PMID: 30569936 DOI: 10.1039/c8nr08302a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The synthesis of nanoscale zero-valent iron (NZVI) nanoclusters with dimensions ranging from 20 to 100 nm for the control of environmental pollutants has received substantial attention. However, due to the strong van der Waals and magnetic attraction forces of ZVI, synthesizing ZVI nanoclusters with a subnanometre size while retaining their surface activity and avoiding aggregation is challenging. Moreover, NZVI particles can be oxidized easily after the removal of contaminants even in anoxic environments, which makes the recovery and recycling of the particles very difficult. Here, for the first time, ultra-small zero-valent iron (ZVI) nanoclusters are successfully prepared in a micelle assisted method under mild conditions, and can be recycled simply. It is found that by encapsulating Fe3+ within the micelles, controlling the release of sulfur ions (S2-) from thiourea and forming the FeS nanoparticles as intermediates, the ZVI nanoclusters are produced with a precisely controlled size (<1 nm). A large number of zero-valent iron nanoclusters were assembled into quasi-spherical assemblages (with around 5 nm size), in which most of the nanoclusters exist discretely because of being coated by entangled hydrocarbon chains of the surfactant. The ZVI nanoclusters (with a diameter of <1 nm) exhibit excellent dispersibility and accessibility in solution, presenting significantly enhanced catalytic activity in the removal of p-nitrophenol from water. The as-prepared ZVI nanoclusters possess excellent stability and durability with the aid of NaBH4. Their catalytic activity/reusability can be comparable to those of the commonly used noble metal catalysts.
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Affiliation(s)
- Dongyang Shi
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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Ren Y, Zhou J, Pan Z, Lai B, Yuan D. Rapid removal of ultra-high-concentration p-nitrophenol in aqueous solution by microwave-enhanced Fe/Cu bimetallic particle (MW-Fe/Cu) system. ENVIRONMENTAL TECHNOLOGY 2019; 40:239-249. [PMID: 28952417 DOI: 10.1080/09593330.2017.1385647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 09/14/2017] [Indexed: 06/07/2023]
Abstract
Ultra-high-concentration PNP-contained wastewaters are produced sometimes due to the wide application of this nitrophenolic compound in the chemical industry. However, there is a lack of appropriate technologies to rapidly pretreat the ultra-high-concentration wastewater. Therefore, a new microwave-enhanced Fe/Cu bimetallic particles (MW-Fe/Cu) system was developed to rapidly remove ultra-high-concentration PNP. First, the priority of the determinative parameters was obtained by orthogonal experiment. Based on this result, the effects of initial pH, microwave power, Fe/Cu dosage and initial PNP concentration on PNP removal were optimized thoroughly. Under the optimal conditions (i.e. initial pH = 1.0, MW power = 385 W, Fe/Cu dosage = 30 g/L and initial PNP concentration = 4000 mg/L), four control treatment systems (i.e. MW-Fe0, heating-Fe/Cu, MW alone and Fe/Cu alone system) were set up to compare with the MW-Fe/Cu system. The results suggest that high PNP removal (more than 99% with 2.5 min, k1/k2 = 1.18/6.91 min-1) and COD removal (26.6% with 5 min treatment) could be obtained by the MW-Fe/Cu system, which were much superior to those obtained using the MW-Fe0 (k1/k2 = 0.62/2.21 min-1) and the heating-Fe/Cu system (k1/k2 = 0.53/1.52 min-1). Finally, the determination of the intermediates of PNP degradation by HPLC indicated that the MW assistance process did not change the degradation pathway of PNP. This concludes that the new MW-Fe/Cu system was the promising technology for pretreatment of wastewater containing ultra-high-concentration toxic and refractory pollutants at a fairly short treatment time.
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Affiliation(s)
- Yi Ren
- a Haitian Water Group Co., Ltd , Chengdu , People's Republic of China
- b Department of Environmental Science and Engineering, School of Architecture and Environment , Sichuan University , Chengdu , People's Republic of China
| | - Jinfan Zhou
- b Department of Environmental Science and Engineering, School of Architecture and Environment , Sichuan University , Chengdu , People's Republic of China
| | - Zhicheng Pan
- a Haitian Water Group Co., Ltd , Chengdu , People's Republic of China
| | - Bo Lai
- a Haitian Water Group Co., Ltd , Chengdu , People's Republic of China
- b Department of Environmental Science and Engineering, School of Architecture and Environment , Sichuan University , Chengdu , People's Republic of China
| | - Donghai Yuan
- c Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing Climate Change Response Research and Education Center , Beijing University of Civil Engineering and Architecture , Beijing , People's Republic of China
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