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Yin Y, Zhao Z, Wang G, Xu Y, Luan YN, Xie Y, Zhao J, Liu C. Nanoconfinement of MgO in nitrogen pre-doped biochar for enhanced phosphate adsorption: Performance and mechanism. BIORESOURCE TECHNOLOGY 2024:131613. [PMID: 39393650 DOI: 10.1016/j.biortech.2024.131613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 10/08/2024] [Accepted: 10/08/2024] [Indexed: 10/13/2024]
Abstract
Advanced metal-doped biochar with superior phosphate (P) adsorption capacity plays a crucial role in combating eutrophication, depending on the rational design of the biochar structure for uniform and nanoscale dispersion of metal oxides. Herein, the nanoconfinement of magnesium oxide (MgO) was successfully attained in nitrogen pre-doped biochar (Mg/N-BC). The well-dispersed MgO was confined within nanoscale structure of Mg/N-BC, delivering P adsorption capacity of 108.41 mg g-1 and adsorption rate of 18.01 mg g-1h-1. More importantly, its adsorption performance at equilibrium 0.5 mg P/L was 17.70 times higher. Results suggested the decrease in pore size was positively correlated with the increase of N, confirming the role of N pre-doping in structure shaping and MgO confinement. The enhanced P adsorption was attributed to the well-dispersed MgO nanoparticles within the biochar. This study introduced a facile synthesis approach for biochar-incorporated nanoscale MgO, offering a new strategy for enhanced P removal.
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Affiliation(s)
- Yue Yin
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Zhuo Zhao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Guanglei Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Yanming Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Ya-Nan Luan
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Yi Xie
- Central and Southern China Municipal Engineering Design & Research Institute Co., Ltd., Wuhan 430010, PR China
| | - Jianchao Zhao
- Central and Southern China Municipal Engineering Design & Research Institute Co., Ltd., Wuhan 430010, PR China
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China.
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2
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Yang X, Deng D, Liu Z, Ke W, Xue S, Zhu F. Pb/As simultaneous removal from soil leachate of Pb/Zn smelting sites by magnetic biochar. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 365:121526. [PMID: 38924888 DOI: 10.1016/j.jenvman.2024.121526] [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: 03/24/2024] [Revised: 05/31/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024]
Abstract
Lead (Pb) and arsenic (As) contaminated soils, caused by Pb and zinc (Zn) smelting activities, pose an urgent environmental issue. Magnetic biochar (MB) has been regarded as an increasingly appealing candidate for the remediation of multi-metals in contaminated soils or their leachate. Finding economically feasible preparation methods for MB and demonstrating its remediation potential is desperately required for the remediation of such complex smelting sites. In this study, a modified MB was prepared using an optimized co-precipitation method, and its application potential for Pb/As simultaneous removal based on the basic properties of a typical Pb/Zn smelting site was evaluated. The surface modifications of MB facilitated the encapsulation of various ultrafine iron oxide particles, predominantly γ-Fe2O3 and Fe3O4, whilst notably enhancing the presence of oxygen-containing surface functional groups. The adsorption of Pb(II) and As(III) by MB was well-described using the pseudo-second-order adsorption and Langmuir models. The existence of SO42- and Ca2+ in the soil leachate competed with the adsorption sites for Pb(II) and As(III). Notably, within the pH range of 5-9, the adsorption efficiency of Pb(II) by MB increased with the rising solution pH, whereas alterations in pH minimally affected the removal rate of As(III), maintaining a consistent removal rate exceeding 95%. Furthermore, dissolved organic matter (DOM) abundant in organic functional groups, particularly CO and CC groups, significantly augmented the adsorption affinity for both Pb(II) and As(III). An application rate of 2 g/L could effectively reduce the concentration of Pb(II) and As(III) in soil leachate to <0.05 mg/L. The findings demonstrated the potential of the prepared MB for simultaneous removal of As(III) and Pb(II) in soil leachate, which should be beneficial to multi-metals polluted soil remediation in Pb/Zn smelting sites.
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Affiliation(s)
- Xiyun Yang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
| | - Dandan Deng
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
| | - Zheng Liu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China; BGI Engineering Consultants Ltd., Beijing, 100038, PR China.
| | - Wenshun Ke
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
| | - Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
| | - Feng Zhu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China.
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Luo Z, Peng X, Liang W, Zhou D, Dang C, Cai W. Enhanced adsorption of roxarsone on iron-nitrogen co-doped biochar from peanut shell: Synthesis, performance and mechanism. BIORESOURCE TECHNOLOGY 2023; 388:129762. [PMID: 37716571 DOI: 10.1016/j.biortech.2023.129762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/04/2023] [Accepted: 09/09/2023] [Indexed: 09/18/2023]
Abstract
Efficient removal of organic arsenic (roxarsone, ROX) from wastewater is highly demanded on the purpose of human health and environmental protection. This work aims to prepare Fe-N co-doped biochar (Fe-N-BC) via one-pot hydrothermal method using waste peanut shell, FeCl3·6H2O and urea, followed by pyrolysis. The effect of Fe-N co-doping on biochar's physicochemical properties, and adsorption performance for ROX were systematically investigated. At the pyrolysis temperature of 650 °C, Fe-N-BC-650 shows a significantly increased specific surface area of 358.53 m2/g with well-developed micro-mesoporous structure. Its adsorption capacity for ROX reaches as high as 197.32 mg/g at 25 °C, with > 90 % regeneration efficiency after multiple adsorption-desorption cycles. Correlation and spectral analysis revealed that the pore filling, π-π interactions, as well as hydrogen bonding play the dominant role in ROX adsorption. These results suggest that the Fe-N co-doped biochar shows great potential in the ROX removal from wastewater with high efficiency.
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Affiliation(s)
- Zhijia Luo
- School of Chemistry and Chemical Engineering, Guangzhou University, 510006 Guangzhou, China; Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou, China
| | - Xiong Peng
- DeCarbon Tech. (Shenzhen) Co., Ltd, 518071 Shenzhen, China
| | - Wanwen Liang
- School of Chemistry and Chemical Engineering, Guangzhou University, 510006 Guangzhou, China; Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou, China.
| | - Dan Zhou
- School of Chemistry and Chemical Engineering, Guangzhou University, 510006 Guangzhou, China
| | - Chengxiong Dang
- School of Chemistry and Chemical Engineering, Guangzhou University, 510006 Guangzhou, China
| | - Weiquan Cai
- School of Chemistry and Chemical Engineering, Guangzhou University, 510006 Guangzhou, China.
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4
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Yoon K, Cho DW, Kwon G, Rinklebe J, Wang H, Song H. Practical approach of As(V) adsorption by fabricating biochar with low basicity from FeCl3 and lignin. CHEMOSPHERE 2023; 329:138665. [PMID: 37044148 DOI: 10.1016/j.chemosphere.2023.138665] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 05/03/2023]
Abstract
One of the main challenges of biochar application for environmental cleanup is rise of pH in water or soil due to high ash and alkali metal contents in the biochar. While this intrinsic property of biochar is advantageous in alleviating soil and water acidity, it severely impairs the affinity of biochar toward anionic contaminants such as arsenic. This study explored a technical approach that can reduce the basicity of lignin-based biochar by utilizing FeCl3 during production of biochar. Three types of biochar were produced by co-pyrolyzing feedstock composed of different combinations of lignin, red mud (RM), and FeCl3, and the produced biochar samples were applied to adsorption of As(V). The biochar samples commonly possessed porous carbon structure embedded with magnetite (Fe3O4) particles. The addition of FeCl3 in the pyrolysis feedstock had a notable effect on reducing basicity of the biochar to yield significantly lower solution pH values than the biochar produced without FeCl3 addition. The extent of As(V) removal was also closely related to the final solution pH and the greatest As(V) removal (>77.6%) was observed for the biochar produced from co-pyrolysis of lignin, RM, and FeCl3. The results of adsorption kinetics and isotherm experiments, along with x-ray spectroscopy (XPS), strongly suggested adsorption of As(V) occurred via specific chemical reaction (chemisorption) between As(V) and Fe-O functional groups on magnetite. Thus, the overall results suggest the use of FeCl3 is a feasible practical approach to control the intrinsic pH of biochar and impart additional functionality that enables effective treatment of As(V).
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Affiliation(s)
- Kwangsuk Yoon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Dong-Wan Cho
- Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon, 34132, Republic of Korea
| | - Gihoon Kwon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China
| | - Hocheol Song
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
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Liu Y, Wang L, Liu C, Ma J, Ouyang X, Weng L, Chen Y, Li Y. Enhanced cadmium removal by biochar and iron oxides composite: Material interactions and pore structure. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 330:117136. [PMID: 36584474 DOI: 10.1016/j.jenvman.2022.117136] [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: 10/31/2022] [Revised: 12/06/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The combination of biochar (BC) and iron minerals improves their pollutant adsorption capacity. However, little is known about the reactivity of BC-iron mineral composites regarding their interaction and change in the pore structure. In this study, the mechanism of cadmium (Cd) adsorption by BC-iron oxide composites, such as BC combined with ferrihydrite (FH) or goethite (GT), was explored. The synergistic effect of the BC-FH composite significantly improved its Cd adsorption capacity. The adsorption efficiencies of BC-FH and BC-GT increased by 15.0% and 10.8%, respectively, compared with that of uncombined BC, FH, and GT. The strong Cd adsorption by BC-FH was attributed to stable interactions and stereoscopic pore filling between BC and FH. The scanning electron microscopy results showed that FH particles entered the BC pores, whereas GT particles were loaded onto the BC surface. FTIR spectroscopy showed that GT covered a larger area of the BC surface than FH. After loading FH and GT, BC porosities decreased by 9.3% and 4.1%, respectively. Quantum chemical calculations and independent gradient mode analysis showed that van der Waals interactions, H-bonds, and covalent-like interactions maintained stability between iron minerals and BC. Additionally, humic acid increased the agglomeration of iron oxides and formed larger particles, causing additional aggregates to load onto the BC surface instead of entering the BC pores. Our results provide theoretical support to reveal the interfacial behavior of BC-iron mineral composites in soil and provide a reference for field applications of these materials for pollution control and environmental remediation.
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Affiliation(s)
- Yong Liu
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Long Wang
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, China
| | - Chang Liu
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Jie Ma
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
| | - Xiaoxue Ouyang
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Liping Weng
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Department of Soil Quality, Wageningen University, Wageningen, the Netherlands
| | - Yali Chen
- Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Yongtao Li
- College of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou Jiangxi, 341000, China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
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6
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Kalimuthu P, Kim Y, Subbaiah MP, Jeon BH, Jung J. Novel magnetic Fe@NSC nanohybrid material for arsenic removal from aqueous media. CHEMOSPHERE 2022; 308:136450. [PMID: 36115479 DOI: 10.1016/j.chemosphere.2022.136450] [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: 04/26/2022] [Revised: 07/27/2022] [Accepted: 09/11/2022] [Indexed: 06/15/2023]
Abstract
Polymer-derived carbon nanohybrids present a remarkable potential for the elimination of water pollutants. Herein, an Fe-modified C, N, and S (Fe@NSC) nanohybrid network, synthesized via polymerization of aniline followed by calcination, is used for As removal from aquatic media. The Langmuir isotherm and pseudo-second-order kinetic models fit well the experimental data for the adsorptive removal of As(III) and As(V) by the as-synthesized Fe@NSC nanohybrid, indicating that adsorption is a monolayer chemisorption process. The maximum adsorption capacities of the fabricated Fe@NSC nanohybrid for As(III) and As(V) were 129.54 and 178.65 mg/g, respectively, which are considerably higher than those reported previously for other adsorbents. In particular, the Fe3O4/FeS nanoparticles (18.4-38.7 nm) of the prepared Fe@NSC nanohybrid play a critical role in As adsorption and oxidation. Spectroscopy data indicate that the adsorption of As on Fe@NSC nanohybrid involved oxidation, ligand exchange, surface complexation, and electrostatic attraction. Furthermore, the magnetic Fe@NSC nanohybrid was easily separated after As adsorption using an external magnet and did not induce acute toxicity (48 h) in Daphnia magna. Moreover, the Fe@NSC nanohybrid selectively removed As species in the presence of competing anions and was effectively regenerated for up to three cycles using a 0.1 M HNO3 solution. These findings suggest that Fe@NSC nanohybrid is a promising adsorbent for As remediation in aquatic media.
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Affiliation(s)
- Pandi Kalimuthu
- BK21 FOUR R&E Center for Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Youjin Kim
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Muthu Prabhu Subbaiah
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, South Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, South Korea
| | - Jinho Jung
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea.
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Numpilai T, Ng KH, Polsomboon N, Cheng CK, Donphai W, Chareonpanich M, Witoon T. Hydrothermal synthesis temperature induces sponge-like loose silica structure: A potential support for Fe 2O 3-based adsorbent in treating As(V)-contaminated water. CHEMOSPHERE 2022; 308:136267. [PMID: 36055586 DOI: 10.1016/j.chemosphere.2022.136267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/03/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
Low cost Fe2O3-based sorbents with an exceptional selectivity toward the targeted As(V) pollutant have gained extensive attention in water treatment. However, their structural features often influence removal performance. In this respect, we present herein a rational design of silica-supported Fe2O3 sorbents with an enhanced morphological structure based on a simple temperature-induced process. Low-hydrothermal temperature synthesis (60 and 100 °C) provided a large silica-cluster size with a close packed structure (S-60 and S-100), contributing to an increase in mass transport resistance. Fe2O3/S-60 with 6.2-nm pore width silica achieved a maximum As(V) uptake capacity (qm) of only 3.5 mg g-1. Supporting Fe2O3 on S-100 with an approximately two-fold increase in the pore size (13 nm) did not lead to any evident enhancement in qe (3.7 mg g-1). However, expanding the pore window up to 22.6 nm (S-140) and 39.5 nm (S-180), along with changing from close-packed to sponge-like loose structures induced by high-temperature synthesis (140 °C and 180 °C), resulted in substantial increases in qm. Fe2O3/S-140 had 1.7 and 1.6 times higher qm (5.9 mg g-1) than Fe2O3/S-100 and Fe2O3/S-60, respectively. The highest qm (7.4 mg g-1) was achieved for Fe2O3/S-180, which was attributed to its relatively small-sized silica cluster and the largest cavities that facilitated easier access by As(V) to adsorbing sites.
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Affiliation(s)
- Thanapha Numpilai
- Department of Environmental Science, Faculty of Science and Technology, Thammasat University, Pathum Thani, 12120, Thailand
| | - Kim Hoong Ng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, ROC
| | - Nutkamaithorn Polsomboon
- Center of Excellence on Petrochemical and Materials Technology, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand; Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, 10900, Thailand
| | - Chin Kui Cheng
- Center for Catalysis and Separation (CeCaS), Department of Chemical Engineering, College of Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Waleeporn Donphai
- Center of Excellence on Petrochemical and Materials Technology, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand; Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, 10900, Thailand
| | - Metta Chareonpanich
- Center of Excellence on Petrochemical and Materials Technology, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand; Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, 10900, Thailand
| | - Thongthai Witoon
- Center of Excellence on Petrochemical and Materials Technology, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand; Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, 10900, Thailand.
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8
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Ray I, Mridha D, Sarkar J, Joardar M, Das A, Chowdhury NR, De A, Acharya K, Roychowdhury T. Application of potassium humate to reduce arsenic bioavailability and toxicity in rice plants (Oryza sativa L.) during its course of germination and seedling growth. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 313:120066. [PMID: 36067973 DOI: 10.1016/j.envpol.2022.120066] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 06/04/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As), a metalloid is a class I carcinogen and is a major problem in various parts of the world. Food crops are severely affected due to As poisoning and suffer from low germination, yield and disfiguration of morphological and anatomical traits. To attenuate such adverse effects and tone down As uptake by plants, the present study attempts to explore the role of K-humate (KH) in alleviation of As toxicity in rice. KH was administered in the growth media containing 800 ppb As (III) at varying doses to observe the stress alleviating capacity of the amendment. Five treatments were investigated, viz: (a) 800 ppb As (control), (b) 800 ppb As + 25 ppm KH, (c) 800 ppb As + 50 ppm KH, (d) 800 ppb As + 75 ppm KH and (e) 800 ppb As + 100 ppm KH. The results of the amendment administration were noted at 14 days after seeding (DAS). Application of KH significantly improved germination percentage, vigour indices and chlorophyll content by reducing the oxidative stress, antioxidant and antioxidant enzyme activities under As stress. In vivo detection of reactive oxygen species (ROS) using DCF-2DA fluorescent dye and scanning electron microscope (SEM) study of root further depicted that KH application effectively reduced ROS formation and improved root anatomical structure under As stress, respectively. Gradually increasing concentrations of KH was capable of decreasing the bioavailability of As to the rice plants, thus minimizing toxic effect of the metalloid.
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Affiliation(s)
- Iravati Ray
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Deepanjan Mridha
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Jit Sarkar
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, Kolkata, 700019, India
| | - Madhurima Joardar
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Antara Das
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | | | - Ayan De
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, Kolkata, 700019, India
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India.
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9
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Ayala LIM, Aparicio F, Boffa V, Magnacca G, Carlos L, Bosio GN, Mártire DO. Removal of As(III) via adsorption and photocatalytic oxidation with magnetic Fe–Cu nanocomposites. Photochem Photobiol Sci 2022; 22:503-512. [PMID: 36327035 DOI: 10.1007/s43630-022-00330-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
Magnetic Fe-Cu nanocomposites with high adsorption capacity and photocatalytic properties were prepared via the precursor method using soluble substances isolated from urban biowaste (BBS) as carbon sources and different temperatures of the pyrolysis treatment (400, 600, and 800 °C). BBS is used as complexing agent for the Fe3+ and Cu2+ ions in the precursors. The as-prepared magnetic materials were tested in As(III) removal processes from water. Dark experiments performed with the materials obtained at 400 and 600 °C showed excellent adsorption capacities achieving a significant uptake of 911 and 840 mg g-1 for As(III), respectively. Experiments conducted under steady-state irradiation showed a reduction of 50-71% in As(III) levels evidencing the meaningful photocatalytic capacity of Fe-Cu nanocomposites. The best photocatalytic performance was obtained for the nanocomposite synthesized at the highest pyrolysis temperature, in line with the reported trend of HO· radicals production. Transient absorption spectroscopy experiments revealed the occurrence of an alternative oxidation pathway involving the valence band holes and yielded relevant kinetic information related to the early stages of the As(III) photooxidation. The higher absorption of the electron-hole pairs observed for the samples treated at lower temperature means that controlling the pyrolysis temperature during the synthesis of the Fe-Cu nanocomposites allows tuning the photocatalyst activity for oxidation of substrates via valence band holes, or via HO· radicals.
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Affiliation(s)
- Lucía I Morán Ayala
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900, La Plata, Argentina
| | - Francisca Aparicio
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900, La Plata, Argentina
| | - Vittorio Boffa
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220, Aalborg, Denmark
| | - Giuliana Magnacca
- Dipartimento di Chimica and NIS Inter-Departmental Centre, Università di Torino, Via Pietro Giuria 7, 10125, Torino, Italy
| | - Luciano Carlos
- Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas, PROBIEN (CONICET-UNCo), Universidad Nacional del Comahue, 8300, Neuquén, Argentina.
| | - Gabriela N Bosio
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900, La Plata, Argentina
| | - Daniel O Mártire
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900, La Plata, Argentina.
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10
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Marzi M, Towfighi H, Shahbazi K, Farahbakhsh M, Kazemian H. Study of arsenic adsorption in calcareous soils: Competitive effect of phosphate, citrate, oxalate, humic acid and fulvic acid. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115532. [PMID: 35717699 DOI: 10.1016/j.jenvman.2022.115532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 06/09/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As) bio-availability in the soil is influenced by different organic and inorganic anions. In the present study, the effects of various competitive agents, including phosphate, citrate, oxalate, humic acid (HA), and fulvic acid (FA), on the adsorption of As in calcareous soils were investigated. The results revealed the presence of phosphate, citrate, and oxalate in soil has a significant impact on the arsenic retention (adsorption) in soil which increases the As bio-availability. The negative impact of the competing anions was increased at higher concentrations. The Double Site Langmuir (DSL) isotherm was best fitted to the adsorption data, which indicates that most of the As adsorbed on the low-energy surfaces (non-specific adsorption by oxides, clays, and clay-size calcite). Accordingly, in soil 1, the DSL predicted that, due to phosphate, citrate, and oxalate competition (at a concentration of 10 mM), the adsorption capacity of the high- and low-energy surfaces decreased from 86.2 to 33.5, 82.1 and 61.3 mg/kg and from 663 to 659, 335.8, and 303.5 mg/kg, respectively, Moreover, after addition of phosphate, citrate, and oxalate to the soil-As system, the Langmuir constant of high-energy surfaces decreased from 0.686 to 0.074, 0.261, and 0.301 L/mg, respectively. No regular trend was observed for the Langmuir constant of low-energy surfaces. Similarly, in soils 2, 3, and 4, the adsorption capacities of both high- and low-energy surfaces as well as the Langmuir constant of high-energy surfaces decreased by the addition of phosphate, citrate, and oxalate to the soil-As system. HA and FA did not have a significant effect on the As adsorption behavior. Phosphate, citrate, and oxalate, as interfering oxyanions, increased the As bio-availability in the calcareous soils by decreasing the As adsorption.
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Affiliation(s)
- Mostafa Marzi
- Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran.
| | - Hasan Towfighi
- Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
| | - Karim Shahbazi
- Soil and Water Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
| | - Mohsen Farahbakhsh
- Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
| | - Hossein Kazemian
- Northern Analytical Laboratory Services (NALS), University of Northern British Columbia (UNBC), Prince George, BC, Canada; Chemistry Department, Faculty of Science and Engineering, University of Northern British Columbia, Canada
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11
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Xie M, Luo X, Liu C, You S, Rad S, He H, Huang Y, Tu Z. Enhancing mechanism of arsenic(iii) adsorption by MnO 2-loaded calcined MgFe layered double hydroxide. RSC Adv 2022; 12:25833-25843. [PMID: 36199607 PMCID: PMC9465402 DOI: 10.1039/d2ra04805a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/31/2022] [Indexed: 11/23/2022] Open
Abstract
The use of MnO2/MgFe-layered double hydroxide (MnO2/MgFe-LDH) and MnO2/MgFe-layered double oxide (MnO2/MgFe-LDO400 °C) for arsenic immobilization from the aqueous medium is the subject of this research. Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy were used to characterise MnO2/MgFe-LDH and MnO2/MgFe-LDO400 °C. Based on our developed method, MnO2 was spread on the clay composites' surfaces in the form of a chemical bond. The clay composite exhibited a good adsorption effect on arsenic. The experimental findings fit the pseudo-second-order model well, indicating that the chemisorption mechanism played a significant role in the adsorption process. Furthermore, the Freundlich model suited the adsorption isotherm data of all adsorbents well. The recycling experiment showed that MnO2/MgFe-LDH and MnO2/MgFe-LDO400 °C exhibited good stability and reusability. In summary, MnO2/MgFe-LDH and MnO2/MgFe-LDO400 °C are promising for developing processes for efficient control of the pollutant arsenic.
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Affiliation(s)
- Mingqi Xie
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Xiangping Luo
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Chongmin Liu
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Shaohong You
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Saeed Rad
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Huijun He
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Yongxiang Huang
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
| | - Zhihong Tu
- College of Environmental Science and Engineering, Guilin University of Technology Guilin 541004 China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology Guilin 541004 China
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences Guangzhou 510640 China
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12
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Hoang VA, Yoshizuka K, Nishihama S. Oxidative Adsorption of Arsenic from Water Environment by Activated Carbon Modified with Cerium Oxide/Hydroxide. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Kalimuthu P, Kim Y, Subbaiah MP, Kim D, Jeon BH, Jung J. Comparative evaluation of Fe-, Zr-, and La-based metal-organic frameworks derived from recycled PET plastic bottles for arsenate removal. CHEMOSPHERE 2022; 294:133672. [PMID: 35063562 DOI: 10.1016/j.chemosphere.2022.133672] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/29/2021] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Metal-organic frameworks (MOFs) derived from recycled polyester (polyethylene terephthalate, PET) bottles were investigated in both batch and column studies for the removal of arsenate. As-synthesized Fe-MOF, Zr-MOF, and La-MOF were systematically analyzed by SEM, PXRD, FTIR, BET, and XPS techniques. The obtained MOFs showed high crystallinity with the specific surface areas of 128.3, 290.4, and 61.8 m2/g for Fe-MOF, Zr-MOF, and La-MOF, respectively. The Langmuir isotherm and pseudo-second-order kinetic model simulated arsenate adsorption on MOF materials well, which can be explained by electrostatic interactions, surface complexation, and ligand exchange mechanisms. The maximum adsorption capacities of arsenate onto Fe-MOF, Zr-MOF, and La-MOF were found to be 70.02, 85.72, and 114.28 mg/g at pH 7, respectively. The effect of pH and co-existing anions on the arsenate adsorption on MOF materials was also evaluated for practical applications. The MOF materials showed reduced adsorption capacity for arsenate by less than 10% up to four cycles of regeneration and did not induce any significant (p > 0.05) acute toxicity (<2.5% mortality) in Daphnia magna. In a flow-through system, Fe-MOF, Zr-MOF, and La-MOF were used to treat 176, 255, and 398 mL bed volumes of arsenate contaminated water, respectively, and consistently reduced the concentration of arsenate ions from 500 to 10 μg/L. This study clearly demonstrated that MOF materials derived from waste PET bottles are economically promising adsorbents for the successful elimination of arsenate species from aqueous environments.
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Affiliation(s)
- Pandi Kalimuthu
- BK21 FOUR R&E Center for Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Youjin Kim
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Muthu Prabhu Subbaiah
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, South Korea
| | - Daewhan Kim
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, South Korea
| | - Jinho Jung
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea.
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14
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Shi Y, Xing Y, Song Z, Dang X, Zhao H. Adsorption performance and its mechanism of aqueous As(III) on polyporous calcined oyster shell-supported Fe-Mn binary oxide. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10714. [PMID: 35445485 DOI: 10.1002/wer.10714] [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: 01/24/2022] [Revised: 03/20/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Fe-Mn binary oxide (FMBO) is a promising adsorbent for As(III) removal through combined adsorption and oxidation. The calcined oyster shell-supported Fe-Mn binary oxide (FMBO/OS) adsorbent was synthesized by the co-precipitation method. Results indicated that the calcined oyster shell, as a carrier, improved the stability of FMBO and its adsorption capacity for As(III). The maximum adsorption capacity of FMBO/OS on As(III) reached 140.5 mg·g-1 . Under pH 5.0 and 25°C, the removal efficiency of FMBO/OS to As(III) solution (C0 = 10 mg·L-1 ) reached 87% within 12 h. Moreover, based on the characterization analyses, the removal mechanisms of As(III) were deduced to include the combined adsorption and oxidation process of FMBO and the synergistic effect of oyster shells. This work provides new insights into synthesizing efficient and green adsorbents to remove aqueous As(III). Meanwhile, it provides technical support for reusing waste biomass materials such as the oyster shell. PRACTITIONER POINTS: FMBO/OS was prepared by a simple hydrothermal co-precipitation method. The carrier alleviates the agglomeration of Fe-Mn oxides. The adsorbent shows a strong adsorption capacity of As(III) and good selectivity. The good results benefit from the synergistic effect of calcium arsenate generation. The prepared adsorbent can adsorb arsenic in real samples.
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Affiliation(s)
- Yao Shi
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Yifei Xing
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Zhilian Song
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Xueming Dang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
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15
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Zheng J, Zhou B, Li H, Gao M, Lü C, He J. Trends and environmental factors of arsenic in sediments from the five lake ecoregions, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:17854-17865. [PMID: 34674134 DOI: 10.1007/s11356-021-16826-7] [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: 12/01/2020] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
The behavior and risk of arsenic (As) closely relate to its geochemical fractionation and environmental factors in sediments. The soluble (F1), reducible (F2), oxidizable (F3), and residual fraction (F4) of As were extracted in the sediments from Lake Hulun, Wuliangsuhai, and Dalinor of Inner Mongolia Plateau. Coupled with lakes from Eastern and Northeast Plain, Yunnan-Guizhou and Qinghai-Tibetan Plateau, the responses of As fractions to environmental conditions were investigated according to the spatial distribution of As fractionations in five lake ecoregions at a national scale of China. Generally, F1 was more sensitive to environmental changes, and the pH presented significantly negative effects on the amount of soluble As, while water depth played an important role in regulating the distribution of the fraction F2 and F4. The As pools in surface lake sediments presented a latitudinal zonation due to the gradient effects of climate and anthropogenic activities on nutrient decomposition, and their influence on the capacity of sediments holding As. This work indicated that nutrients played a coordinating role in regulating the impacts of climate and environmental factors on As fractionation in aquatic environments.
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Affiliation(s)
- Jinli Zheng
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Bin Zhou
- Tianjin Academy of Eco-Environmental Sciences, Tianjin, 300191, China
| | - Hao Li
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Manshu Gao
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Changwei Lü
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China.
- Institute of Environmental Geology, Inner Mongolia University, Hohhot, 010021, China.
| | - Jiang He
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China.
- Institute of Environmental Geology, Inner Mongolia University, Hohhot, 010021, China.
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16
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Song Z, Garg S, Ma J, Waite TD. Influence of cations on As(III) removal from simulated groundwaters by double potential step chronoamperometry (DPSC) employing polyvinylferrocene (PVF) functionalized electrodes. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127472. [PMID: 34655881 DOI: 10.1016/j.jhazmat.2021.127472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/28/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
As(III) removal from groundwaters is challenging because of its neutral charge and low surface affinity under circumneutral pH conditions. In this work, we investigate the influence of Ca2+ and Mg2+ on the removal of As(III) by a redox active polyvinylferrocene (PVF) functionalized electrode in a modified double potential step chronoamperometry (DPSC) setup. In the absence of divalent cations, nearly 90% As(III) removal is achieved over ten continuous cycles by single-pass DPSC, even in the presence of competing anions, however the presence of divalent cations at concentrations ≥ 1.25 mM significantly inhibits As(III) removal. The divalent cations enhance arsenic removal in the first (removal) step but suppress electrode regeneration in the 2nd step. Our results suggest that Ca2+/Mg2+ either acts as a bridge between the electrode surface and As anions or the sorption of Ca2+/Mg2+ increases the positive charge on the electrode surface thereby facilitating As(V) sorption. We show that effective electrode regeneration can be achieved using an NaOH wash however the overall complexity of the process increases. Overall, we conclude that the influence of divalent cations on As removal by electro-sorption processes needs to be taken into consideration for application of this technology for real groundwater treatment.
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Affiliation(s)
- Zhao Song
- UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
| | - Shikha Garg
- UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
| | - Jinxing Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - T David Waite
- UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
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17
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Activated Carbons for Arsenic Removal from Natural Waters and Wastewaters: A Review. WATER 2021. [DOI: 10.3390/w13212982] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The arsenic pollution of waters and wastewaters is concerning many countries across the world, and because of the effects of arsenic on human health, its removal from waters is of great importance. Adsorption using functionalized activated carbons as a technique for the removal of arsenic from water streams has gained great attention. In the present review, we summarize synthesis technologies, the characterization of materials and arsenic removal capacity, and we clarify the parameters which play a critical role in the removal of arsenic, such as the pH value of the water, the active group in the functionalization and temperature. The review article concludes that most of the experimental data fit both Langmuir and Freundlich isotherms. In this review, the recyclability and reuse of the materials are also reported, and the findings show that for both arsenite and arsenate, even after several adsorption cycles, the material can be further used as an efficient adsorbent for arsenic removal.
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18
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Shi X, Hong J, Kang L, Song G, Lin J, Mai X, Naik N, Guo Z. Significant improvement on selectivity and capacity of glycine-modified FeCo-layered double hydroxides in the removal of As (V) from polluted water. CHEMOSPHERE 2021; 281:130943. [PMID: 34289612 DOI: 10.1016/j.chemosphere.2021.130943] [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: 12/08/2020] [Revised: 04/25/2021] [Accepted: 05/16/2021] [Indexed: 06/13/2023]
Abstract
A series of novel Fe/Co layered double hydroxides modified with glycine (named as FeCo-LDH@G) were prepared and served as high-performance adsorbents for As (V). With a Fe/Co mole ratio of 1:1, the Fe0·02Co0.02-LDH@G adsorbents achieved significant improvements on the adsorption selectivity and capacity for As (V). The As (V) adsorption by Fe0·02Co0.02-LDH@G follows Langmuir isotherm model and pseudo-second-order kinetics model. The maximum adsorption capacity is 820 mg g-1 and the equilibrium reaches in 120 min. Under the assistance of electrochemical devices, the Fe0·02Co0.02-LDH@G adsorbent was regenerated and the adsorption capacity for As (V) was dropped only about 13.41% in 5 cycles. These excellent performances make Fe0·02Co0.02-LDH@G as promising As (V) adsorbents for commercial wastewater treatments.
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Affiliation(s)
- Xiaofeng Shi
- School of Environment and Safety Engineering, North University of China, Taiyuan, China.
| | - Junmao Hong
- School of Materials Science and Engineering, North University of China, Taiyuan, China
| | - Le Kang
- School of Environment and Safety Engineering, North University of China, Taiyuan, China
| | - Gang Song
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Jing Lin
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Xianmin Mai
- School of Urban Planning and Architecture, Southwest Minzu University, Chengdu, 610041, China.
| | - Nithesh Naik
- Department of Mechanical & Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
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Removal of As(V) by a core-shell magnetic nanoparticles synthesized with iron-containing water treatment residuals. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127074] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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20
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Enriching Trace Level Adsorption Affinity of As3+ Ion Using Hydrothermally Synthesized Iron-Doped Hydroxyapatite Nanorods. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02103-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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21
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Jegatheesan V, Shu L, Rene ER, Lin TF. Challenges in environmental science/engineering and innovations in pollution prevention and resource recovery for a sustainable future. CHEMOSPHERE 2021; 276:130148. [PMID: 33730608 DOI: 10.1016/j.chemosphere.2021.130148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
| | - Li Shu
- LJS Environment, Parkville, VIC, 3052, Australia
| | - Eldon R Rene
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611, AX, Delft, the Netherlands
| | - Tsair-Fuh Lin
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
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22
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Huo JB, Yu G, Wang J. Magnetic zeolitic imidazolate frameworks composite as an efficient adsorbent for arsenic removal from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125298. [PMID: 33951874 DOI: 10.1016/j.jhazmat.2021.125298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 06/12/2023]
Abstract
In this study, magnetic zeolitic imidazolate frameworks (ZIF-8) was prepared by a one-step method, where its evolution involved the coprecipitation reactions concomitant with the self-assembly reactions. Structural characterizations indicated that magnetic ZIF-8 showed irregular polyhedral morphology with a large specific surface area (696.5 m2/g) and saturation magnetization (4.31 emu/g). The as-prepared magnetic ZIF-8 enhanced the adsorption performance of As(III) and As(V), compared with bare Fe3O4. The pseudo second-order kinetic model (R2 = 0.9627 and 0.9893 for As(III) and As(V), respectively) and the Langmuir model (R2 = 0.9441 for As(III) and 0.9851 for As(V)) can fit the adsorption process well, confirming the nature of single-layer homogeneous chemisorption. The adsorption capacity was 30.87 and 17.51 mg/g, and their corresponding values of PC were 2.664 and 1.286 L/g, for As(III) and As(V), respectively. Solution pH showed an adverse effect on As(V) adsorption whereas no obvious effect on As(III). The ionic strength and coexisting ions had not obvious influence on adsorption of As(III) and As(V). The adsorption mechanism was explored and discussed based on the detailed spectroscopy analysis. This adsorbent can be recovered magnetically after use, which is promising for the practical application.
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Affiliation(s)
- Jiang-Bo Huo
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China
| | - Guoce Yu
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, China.
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23
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Huo JB, Yu G, Xu L, Fu ML. Porous walnut-like La 2O 2CO 3 derived from metal-organic frameworks for arsenate removal: A study of kinetics, isotherms, and mechanism. CHEMOSPHERE 2021; 271:129528. [PMID: 33434820 DOI: 10.1016/j.chemosphere.2020.129528] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/14/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Exploration of renewable materials for efficient elimination of arsenic from water is highly imperative. Herein, one kind of novel porous walnut-like La2O2CO3 composite is reported for the first time, fabricated via direct pyrolysis of La-MOFs at 550 °C under the air atmosphere. The as-synthesized material predominantly consists of La2O2CO3, featuring micrometer-scale walnut-like morphology and an abundant mesoporous structure. Adsorption experiments demonstrated that a pseudo-second-order model with a high correlation coefficient (0.9976-0.9988) can depict this adsorption process in a good manner and indicates chemical adsorption. Analysis of the isotherms further revealed that this adsorption is a monolayer and homogeneous process, with an excellent adsorption capacity (210.1 As mg/g), as calculated from the Langmuir model. Thermodynamic parameters indicated this adsorption process to be a spontaneous and endothermic, with a positive change in entropy. By characterization results, it can be deduced that the anion-exchange interaction (i.e. carbonate is prone to being replaced by arsenate) and inner-sphere complexation were both responsible for arsenate removal. A broad working pH range (3.0-9.0) and a good cyclic performance (removal rate is above 90% for the fourth cycle) as well as an excellent adsorption capacity make this adsorbent a promising arsenic scavenger.
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Affiliation(s)
- Jiang-Bo Huo
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China; Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, China; Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment (IUE), Chinese Academy of Sciences, Xiamen, 361021, China
| | - Guoce Yu
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, China
| | - Lei Xu
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment (IUE), Chinese Academy of Sciences, Xiamen, 361021, China
| | - Ming-Lai Fu
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China; Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment (IUE), Chinese Academy of Sciences, Xiamen, 361021, China.
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24
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Yang H, Zhang Y, Xia S. Study on the co-effect of maifanite-based photocatalyst and humic acid in the photodegradation of organic pollutant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:15731-15742. [PMID: 33244697 DOI: 10.1007/s11356-020-11603-4] [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: 09/20/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
In this study, the co-effect of clay mineral-based photocatalyst and humic acid on the photodegradation of dye was revealed for the first time. The clay mineral-based photocatalyst, maifanite/g-C3N4, was prepared using the co-calcining method. The physical and chemical properties of the maifanite/g-C3N4 photocatalysts with various ratios were characterized by multiple characterization methods, including SEM, XPS, BET, UV-Vis, FTIR, contact angle, and XRD. The respective degradation experiment of humic acid and RhB was performed using maifanite/g-C3N4 photocatalysts. The degradation process of mixture solution of humic acid and RhB was measured using EEM and UV-vis. The result indicates that in the presence of humic acid, low ratio of maifanite/g-C3N4 inhibits the production of by-products derived from the interaction of humic acid and the degradation of RhB. However, high ratio of maifanite/g-C3N4 is not conducive to the degradation of RhB. The ratio of 1:3 for maifanite/g-C3N4 is optimal for the photodegradation of RhB in the presence of humic acid. This article provides a new perspective to develop the co-effect of clay mineral and humic acid in the photodegradation of organic pollutant.
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Affiliation(s)
- Hang Yang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Yi Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China.
| | - Shibin Xia
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.
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Shi X, Hong J, Li J, Kong S, Song G, Naik N, Guo Z. Excellent selectivity and high capacity of As (V) removal by a novel lignin-based adsorbent doped with N element and modified with Ca 2. Int J Biol Macromol 2021; 172:299-308. [PMID: 33418048 DOI: 10.1016/j.ijbiomac.2021.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/28/2020] [Accepted: 01/02/2021] [Indexed: 10/22/2022]
Abstract
As one of the most significant natural polymer with the highest annual yield, lignin has been applied in the treatment of wastewater to remove heavy metal ions. However, there are still some shortages, such as low reactivity, difficulties in adsorbing oxyanions and low selectivity on specific oxyanions. To improve its adsorption properties, a novel lignin-based adsorbent was prepared in this study, doped with nitrogen by Mannich reaction, using triethylenetetramine (TETA) as N source, and further modified with Ca2+. The adsorption of Ca, N-co-doped lignin (Ca@N-Lig) for As (V), Cr (VI) and P (V) was studied. The Ca@N-Lig shows high capacity, excellent selectivity and prominent regeneration ability for As (V) adsorption. The adsorption of Ca@N-Lig for As (V) followed the Langmuir isotherm model and the pseudo-second-order kinetics model, yielding a maximum adsorption capacity of 681.59 mg·g-1 and a fast adsorption equilibrium within 30 min. Ca@N-Lig has an excellent regeneration ability on the adsorption of As (V) with a decrease of about 15.60% after 5 adsorption/desorption cycles. This study offers an efficient way to remove As (V) from polluted water.
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Affiliation(s)
- Xiaofeng Shi
- School of Environment and Safety Engineering, North University of China, Taiyuan, China.
| | - Junmao Hong
- School of Materials Science and Engineering, North University of China, Taiyuan, China
| | - Junhua Li
- School of Environment and Safety Engineering, North University of China, Taiyuan, China.
| | - Shifang Kong
- School of Traffic & Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China.
| | - Gang Song
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Nithesh Naik
- Department of Mechanical & Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical and Bimolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA.
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Zoroufchi Benis K, Motalebi Damuchali A, Soltan J, McPhedran KN. Treatment of aqueous arsenic - A review of biochar modification methods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 739:139750. [PMID: 32540652 DOI: 10.1016/j.scitotenv.2020.139750] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/09/2020] [Accepted: 05/25/2020] [Indexed: 05/12/2023]
Abstract
Arsenic (As) is an ever-present worldwide environmental contamination issue. The process of As sorption for treatment of contaminated waters is regarded as a promising treatment technology approach due to its simplicity and potential for high efficiency. Biochars are carbon-rich porous solids produced by heating of biomasses under low oxygen conditions. Biochars are considered to be environmentally friendly sorbents that can be used to treat various As-containing waters. However, unmodified biochar is generally a poor sorbent for As species due to static repulsion between the As oxyanions and the negatively charged biochar surface. The As sorption capacity of biochars can be substantially improved by treatments using various physical and chemical activation and modification methods. Thus, this review includes 63 research studies using physical and chemical approaches to enhance biochar physicochemical structures and As sorption efficiencies. The effectiveness of each method for altering the characteristics and sorption capacity of biochars is described. This review can help to focus the scope of future As biochar sorption studies and aid researchers in optimization of biochar-based sorbents for As treatment.
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Affiliation(s)
- Khaled Zoroufchi Benis
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Ali Motalebi Damuchali
- Department of Civil, Geological & Environmental Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Jafar Soltan
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Kerry Neil McPhedran
- Department of Civil, Geological & Environmental Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
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