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Zhang S, Li M, Zhang H, Fan F, Zhou C, Lao K, Gao X. Enhanced phosphate removal from aqueous environments using three-dimensional La-doped carboxylic carbon nanotubes/alginate: Performance and mechanisms. Int J Biol Macromol 2024; 280:136117. [PMID: 39343262 DOI: 10.1016/j.ijbiomac.2024.136117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 09/13/2024] [Accepted: 09/26/2024] [Indexed: 10/01/2024]
Abstract
The excessive amounts of phosphorus (P) discharged and usage have caused eutrophication and algal blooms, which seriously jeopardize the environment even the human health. In this study, carbon nanotubes (CNTs) served as carriers to develop a lanthanum-based sodium alginate hydrogel (La-CNT-COOH/SA) aimed at efficiently removing phosphate from wastewater. Characterization results confirmed successful deposition of La(OH)3 nanoparticles onto CNT-COOH. The optimal adsorption efficiency of La-CNT-COOH/SA hydrogels occurred at pH 4, with a maximum adsorption capacity of 54.4 mg/g under an initial phosphate concentration of 60 mg/L. Batch experiments demonstrated that La-CNT-COOH/SA performed well across a favorable pH range and exhibited high tolerance to common coexisting ions during phosphate adsorption. Adsorption isotherms indicated a dominance of both physical and chemical mechanisms in phosphate removal by La-CNT-COOH/SA. At elevated phosphate concentrations, the adsorption process followed quasi-second-order kinetics, primarily driven by chemical adsorption. Multi-instrument characterization emphasized that the substantial loading of La(OH)3 on CNT-COOH significantly contributed to adsorption, alongside crosslinked lanthanum ions on sodium alginate and abundant hydroxyl groups. Mechanisms of adsorption by La-CNT-COOH/SA encompassed electrostatic interactions, surface precipitation, and in-sphere complexation (La-O-P). These findings on fabrication, properties, and adsorption mechanisms of the phosphate-removal hydrogel lay a theoretical foundation for applying biomass-based materials in large-scale remediation practices.
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Affiliation(s)
- Shenghao Zhang
- Key Laboratory of Mine Low-Carbon Reclamation and Solid Waste Resource Utilization of Ma'anshan, Anhui University of Technology, Ma'anshan, Anhui 243032, China; Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, Guangdong 519087, China
| | - Mingyang Li
- Key Laboratory of Mine Low-Carbon Reclamation and Solid Waste Resource Utilization of Ma'anshan, Anhui University of Technology, Ma'anshan, Anhui 243032, China.
| | - Hao Zhang
- Key Laboratory of Mine Low-Carbon Reclamation and Solid Waste Resource Utilization of Ma'anshan, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Fuqiang Fan
- Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, Guangdong 519087, China
| | - Chunyang Zhou
- Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, Guangdong 519087, China
| | - Kangwen Lao
- Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, Guangdong 519087, China
| | - Xiangpeng Gao
- Key Laboratory of Mine Low-Carbon Reclamation and Solid Waste Resource Utilization of Ma'anshan, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China.
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2
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Wang W, Kong H, Wang J, Zhang G, Shen F, Liu F, Huang Z. Lanthanum-calcium bimetallic-modified attapulgite- chitosan hydrogel beads for efficient phosphate removal from water: Performance evaluation, mechanistic and life cycle assessment. Carbohydr Polym 2024; 338:122183. [PMID: 38763721 DOI: 10.1016/j.carbpol.2024.122183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 05/21/2024]
Abstract
Phosphorus is a critical factor in the control of eutrophication. We developed a three-dimensional porous, bimetallic-modified adsorbent La-Ca-CS/ATP to remove excess phosphate from water. Langmuir model showed that the theoretical adsorption capacity of La-Ca-CS/ATP was up to 123 mg P/g. The amount of La and Ca leached by La-Ca-CS/ATP was small, and the adsorption of 36.08 mg P/g was maintained during the five cycles of La-Ca-CS/ATP. The La-Ca-CS/ATP adsorption mechanism mainly involved surface precipitation, ligand exchange, electrostatic attraction, and inner-sphere complexation. Molecular dynamics demonstrated that La and Ca had complementary effects on binding sites and energy barriers within the range of 0.5-0.7 nm and 1.2-2 nm, enhancing the adsorption effect of La-Ca-CS/ATP. The life cycle assessment results showed that adding calcium could help reduce the environmental impact of lanthanum and chitosan. The production of La-Ca-CS/ATP adsorbed 73.88 P mg/g and emitted 24.73 kg CO2 eq, which was less than other adsorbents.
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Affiliation(s)
- Weihan Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Hao Kong
- Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610065, China
| | - Jiarui Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Gengtao Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Feng Shen
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Fang Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Zhiping Huang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
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3
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Xiao F, Li Y, Xia Y, Zhang J, Wang C, Li Z, Yang S, Dong S, Wang Y. Uncovering the role of free lanthanum (La 3+) ions and La oligomer on the surface of La (oxy)hydroxide particles for phosphate removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174747. [PMID: 39004361 DOI: 10.1016/j.scitotenv.2024.174747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/24/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
La (oxy)hydroxide-based materials have been recognized as promising adsorbents for aqueous phosphate (P) removal. However, comprehending the adsorption behavior of P onto La (oxy)hydroxide particles remains challenging, given the heterogeneous low-crystalline surface encompassing La oligomers and free La3+ ions. In this study, a hydrogen (H) bond capping method was developed to construct La (oxy)hydroxide oligomers (LHOs) to simulate the low-crystalline La on the surface of La (oxy)hydroxide particles. The P uptake capacity was compared among free La3+ ions, LHOs, and La nanoparticle (La-NP) with maximum capacities of 1967.3 ± 30.8 mg/g, 461.1 ± 53.7 mg/g and 62.5 ± 6.0 mg/g, respectively. The FT-IR, Raman, in situ-XRD and XPS deconvolution analyses revealed that the removal of P by free La3+ ions mainly involve the process of chemical precipitation to form LaPO4·0.5H2O. Conversely, the elimination of P by LHOs is primarily attributed to inner-sphere complexation and hydroxyl exchange effect between LaOOH and P. Based on this study, the free La3+ ions and La oligomers on the surface of La (oxy)hydroxide particles play a primary role in P adsorption. These results also suggest that the successively decreased adsorption capacity of La (oxy)hydroxide-based adsorbents in the continuously adsorption/desorption cycles might be due to the irreversible inactivation and recrystallization of free La3+ ions and La oligomers on the surface.
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Affiliation(s)
- Feng Xiao
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Yongqi Li
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Yuanchen Xia
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Jianing Zhang
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Changyu Wang
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Zihan Li
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Shaoxia Yang
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Shuoxun Dong
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China.
| | - Yili Wang
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China
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Ouyang E, Xiang H, Zhao R, Yang H, He W, Zhang R. Structural design of La 2(CO 3) 3 loaded magnetic biochar for selective removal of phosphorus from wastewater. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123510. [PMID: 38325506 DOI: 10.1016/j.envpol.2024.123510] [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: 01/04/2024] [Revised: 02/02/2024] [Accepted: 02/04/2024] [Indexed: 02/09/2024]
Abstract
High levels of phosphorus released into the environment can cause eutrophication issues in wastewater, therefore discharge concentrations of such element are regulated in many countries. This study addresses the pressing need for effective phosphorus removal methods by developing a novel La2(CO3)3 and MnFe2O4 loaded biochar composite (LMB). A remarkable adsorption capacity towards the three forms of phosphorus from wastewater, including phosphate, phosphite, and etidronic acid monohydrate (as a representative of organic phosphorus), was exhibited by LMB (88.20, 16.35, and 15.95 mg g-1, respectively). The high saturation magnetization value (50.17 emu g-1) highlighted the easy separability and recyclability of the adsorbent. The adsorption process was well described by the Langmuir isotherm model and the pseudo-second-order kinetic model, which mainly involved chemisorption. Characterization results confirm the effective loading of La2(CO3)3 with ligand exchange and electrostatic attraction identified as the primary mechanisms. Importantly, the LMB demonstrated exceptional selectivity for phosphorus in wastewater samples containing various substances, exhibiting minimal interference from competing ions (Cl-, NO3-, SO42-, and CO32-). These findings enhance the understanding of LMB's application in efficient wastewater phosphorus removal. Holding significant promise in wastewater remediation, the LMB acts as an effective adsorbent, contributing substantially to the prevention and control of various types of phosphorus pollutants, thereby mitigating wastewater eutrophication.
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Affiliation(s)
- Erming Ouyang
- School of Resources & Environment, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China
| | - Hanrui Xiang
- School of Resources & Environment, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China
| | - Rui Zhao
- School of Resources & Environment, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China.
| | - Hongwei Yang
- School of Resources & Environment, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China; Engineering Research Center of Watershed Carbon Neutralization, Ministry of Education, Nanchang University, People's Republic of China
| | - Wanyuan He
- School of Resources & Environment, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China
| | - Ruiyue Zhang
- School of Resources & Environment, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China
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Xu Z, Guo H, Gan J, Ahmed T, Wang T, Liu J, Mei M, Chen S, Li J. Simultaneous removal of phosphate and tetracycline using LaFeO 3 functionalised magnetic biochar by obtained ultrasound-assisted sol-gel pyrolysis: Mechanisms and characterisation. ENVIRONMENTAL RESEARCH 2023; 239:117227. [PMID: 37778609 DOI: 10.1016/j.envres.2023.117227] [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: 07/19/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023]
Abstract
Excessive phosphate and tetracycline (TC) contaminants pose a serious risk to human health and the ecological environment. As such exploring the simultaneous adsorption of phosphate and TC is garnering increasing attention. In this study, an efficient lanthanum ferrate magnetic biochar (FLBC) was synthesised from crab shells using an ultrasound-assisted sol-gel method to study its performance and mechanisms for phosphate and TC adsorption in aqueous solutions in mono/bis systems. According to the Langmuir model, the developed exhibited a maximum adsorption capacity of 65.62 mg/g for phosphate and 234.1 mg/g for TC (pH:7.0 ± 0.1, and 25 °C). Further, it exhibited high resistance to interference and pH suitability. In practical swine wastewater applications, whereby the concentrations of phosphate and TC are 37 and 19.97 mg/L, respectively, the proposed material demonstrated excellent performance. In addition, electrostatic adsorption, chemical precipitation and ligand exchange were noted to be the main mechanisms for phosphate adsorption by FLBC, whereas hydrogen bonding and π-π interaction were the main adsorption mechanisms for TC adsorption. Therefore, this study successfully prepared a novel and efficient adsorbent for phosphate and TC.
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Affiliation(s)
- Zhichao Xu
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China
| | - Hongyang Guo
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China
| | - Jinhua Gan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei, 430223, China
| | - Taosif Ahmed
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China
| | - Teng Wang
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, 430073, China
| | - Jingxin Liu
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, 430073, China
| | - Meng Mei
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, 430073, China
| | - Si Chen
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, 430073, China
| | - Jinping Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, 430073, China.
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6
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Wang S, Wang Y, Dong S, Li X, Liu C. Synchronously construction of hierarchical porous channels and cationic surface charge on lanthanum-hydrogel for rapid phosphorus removal. ENVIRONMENTAL RESEARCH 2023; 236:116730. [PMID: 37500045 DOI: 10.1016/j.envres.2023.116730] [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: 04/18/2023] [Revised: 07/08/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023]
Abstract
Phosphorus (P) removal from wastewater is critical for ecosystem operation and resource recovery. To facilitate the recycling of the used absorbents through balancing their adsorption and desorption performance on P, in this work, a novel porous magnetic La(OH)3-loaded MAPTAC/chitosan (CTS)/polyethyleneimine (PEI) ternary composite hydrogel (p-MTCH-La(OH)3) with enhanced bifunctional adsorption sites was synthesized by simultaneous dissolution of pre-embedded CaCO3 and CTS powder, followed by grafting PEI and loading La. Hierarchical porous channels promoted good dispersion of La(OH)3, bringing an excellent P adsorption capacity of 107.23 ± 4.96 mg P/g at neutral condition. PEI grafted with CTS increased the surface charge and enhanced the electrostatic attraction, which facilitated the desorption of P. The porous structure and abundant active sites also facilitated rapid adsorption with an adsorption rate constant of 0.1 g mg-1 h-1. p-MTCH-La(OH)3 maintained effective P adsorption despite co-existence with competing substances and after 5 cycles. Further mechanistic analysis indicated that La-P inner sphere complexation and LaPO4 crystalline transformation were the main pathways for P removal. However, electrostatic interactions contributed 17.5%-46.7% of the adsorption amount during the first 30 min of rapid adsorption, enabling 92.8% of the adsorbed P at this stage to be desorbed by alkaline solution. Based on the variations of adsorption and desorption capacity with adsorption time, a rapid unsaturated adsorption of 1-2 h was proposed to facilitate the recycling of the adsorbent. This study proposed a method to promote P adsorption and desorption by enhancing bifunctional adsorption sites, and proved that p-MTCH-La(OH)3 is a promising phosphate adsorbent.
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Affiliation(s)
- Siying Wang
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing, 100083, China
| | - Yili Wang
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing, 100083, China.
| | - Shuoxun Dong
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing, 102206, China.
| | - Xiaolin Li
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing, 100083, China
| | - Chenyang Liu
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing, 100083, China
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Zhan Y, Qiu B, Lin J. Effect of common ions aging treatment on adsorption of phosphate onto and control of phosphorus release from sediment by lanthanum-modified bentonite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 341:118109. [PMID: 37172347 DOI: 10.1016/j.jenvman.2023.118109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/21/2023] [Accepted: 05/04/2023] [Indexed: 05/14/2023]
Abstract
The objective of this work was to explore the influence of combined aging treatment using Na+, Ca2+, Cl-, HCO3- and SO42- on the adsorption of phosphate (HiPO4i-3) onto and the restraint of internal phosphorus (P) migration into overlying water (OW) by lanthanum modified bentonite (LMB). To achieve this aim, the adsorption characteristics and mechanisms of HiPO4i-3 onto the raw and aged LMBs (named as R-LMB and A-LMB, respectively) were comparatively studied, and the effects of R-LMB and A-LMB treatments (addition and capping) on the migration of P from sediment to OW were comparatively investigated. The results showed that the combined aging treatment of R-LMB with Na+, Ca2+, Cl-, HCO3- and SO42- inhibited the adsorption of HiPO4i-3. Similar to R-LMB, the precipitation of HiPO4i-3 with La3+ to form LaPO4 and the ligand exchange between CO32- and HiPO4i-3 to form the inner-sphere lanthanum-phosphate complexes are the important mechanisms for the HiPO4i-3 uptake by A-LMB. The R-LMB addition and capping can be effective in the suppression of endogenous P release to OW under hypoxia conditions. The inactivation of diffusive gradient in thin film-unstable P (DGT-UP) and potentially mobile P (PM-P) in sediment acted as a key role in the restraint of internal P release to OW by the R-LMB addition, and the immobilization of DGT-UP and PM-P in the topmost sediment played a key role in the interception of endogenous P migration into OW by the R-LMB capping. Although the Na+/Ca2+/Cl-/HCO3-/SO42- combined aging treatment had a certain negative effect on the efficiencies of LMB addition and capping to hinder the liberation of P from sediment into OW, the A-LMB addition and capping still can be effective in the control of sediment internal phosphorus pollution to a certain degree. The results of this work indicate that LMB has a high potential to be used as a capping/amendment material to control internal phosphorus pollution.
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Affiliation(s)
- Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Bo Qiu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
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Feng C, Zhang L, Zhang X, Li J, Li Y, Peng Y, Luo Y, Li R, Gao B, Hamouda MA, Smith K, Ali EF, Lee SS, Zhang Z, Rinklebe J, Shaheen SM. Bio-assembled MgO-coated tea waste biochar efficiently decontaminates phosphate from water and kitchen waste fermentation liquid. BIOCHAR 2023; 5:22. [DOI: 10.1007/s42773-023-00214-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 08/20/2023]
Abstract
AbstractCrystal morphology of metal oxides in engineered metal-biochar composites governs the removal of phosphorus (P) from aqueous solutions. Up to our best knowledge, preparation of bio-assembled MgO-coated biochar and its application for the removal of P from solutions and kitchen waste fermentation liquids have not yet been studied. Therefore, in this study, a needle-like MgO particle coated tea waste biochar composite (MTC) was prepared through a novel biological assembly and template elimination process. The produced MTC was used as an adsorbent for removing P from a synthetic solution and real kitchen waste fermentation liquid. The maximum P sorption capacities of the MTC, deduced from the Langmuir model, were 58.80 mg g−1 from the solution at pH 7 and 192.8 mg g−1 from the fermentation liquid at pH 9. The increase of ionic strength (0–0.1 mol L−1 NaNO3) reduced P removal efficiency from 98.53% to 93.01% in the synthetic solution but had no significant impact on P removal from the fermentation liquid. Precipitation of MgHPO4 and Mg(H2PO4)2 (76.5%), ligand exchange (18.0%), and electrostatic attraction (5.5%) were the potential mechanisms for P sorption from the synthetic solution, while struvite formation (57.6%) and ligand exchange (42.2%) governed the sorption of P from the kitchen waste fermentation liquid. Compared to previously reported MgO-biochar composites, MTC had a lower P sorption capacity in phosphate solution but a higher P sorption capacity in fermentation liquid. Therefore, the studied MTC could be used as an effective candidate for the removal of P from aqueous environments, and especially from the fermentation liquids. In the future, it will be necessary to systematically compare the performance of metal-biochar composites with different metal oxide crystal morphology for P removal from different types of wastewater.
Graphical Abstract
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9
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Albert Aryee A, Gao C, Han R, Qu L. Synthesis of a novel magnetic biomass-MOF composite for the efficient removal of phosphates: Adsorption mechanism and characterization study. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2023.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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10
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Zhang S, Lin T, Li W, Li M, Su K, Chen J, Yang H. Lanthanum-loaded peanut shell biochar prepared via one-step pyrolysis method for phosphorus removal and immobilization. ENVIRONMENTAL TECHNOLOGY 2023; 44:1169-1178. [PMID: 34666616 DOI: 10.1080/09593330.2021.1996468] [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: 07/16/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Phosphorus (P) is a nutrient element triggering eutrophication. Therefore, the removal of excess phosphorus has become an emergent demand. In this study, lanthanum-loaded biochar (La-BC) was prepared via a simple one-step pyrolysis method. Its surface properties and structural characteristics were analyzed by SEM, XRD, FTIR and pHpzc. The phosphate removal by the La-BC was systematically investigated in batch mode. Results showed that the phosphorus adsorption obeyed the pseudo-second-order model and Langmuir isotherm. The calculated maximum adsorption capacities were 31.94, 33.06 and 33.98 mg/g at 25, 35 and 45°C, respectively. Except for SO42- and CO32-, phosphate adsorption by the La-BC showed strong anti-interference to coexisting ions. For real water samples, the phosphate concentrations in the effluents were below 0.02 mg/L after treatment. The P loaded the La-BC was difficult to be desorbed, suggesting that the La-BC was not only a P-capping agent but also a P-immobilizing agent. More interestingly, a large number of stable LaPO4 nanofibers were formed on the La-BC surface via the reaction between the dissolved phosphate anions and La(OH)3 loaded on the adsorbent. Their intertwining facilitated the formation of the floc, which was conducive to the solid-liquid separation. Hence, the developed La-BC can be used as a potential adsorbent for natural waterbody remediation.
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Affiliation(s)
- Shengli Zhang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Tong Lin
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Wei Li
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Menglin Li
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Kai Su
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Junmin Chen
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Hongwei Yang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
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11
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La-doped activated carbon as high-efficiency phosphorus adsorbent: DFT exploration of the adsorption mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Kong H, Li Q, Zheng X, Chen P, Zhang G, Huang Z. Lanthanum modified chitosan-attapulgite composite for phosphate removal from water: Performance, mechanisms and applicability. Int J Biol Macromol 2022; 224:984-997. [DOI: 10.1016/j.ijbiomac.2022.10.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/05/2022]
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13
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Luo H, Wan Y, Zhou H, Cai Y, Zhu M, Dang Z, Yin H. Mechanisms and influencing factors for electron transfer complex in metal-biochar nanocomposites activated peroxydisulfate. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129461. [PMID: 35780737 DOI: 10.1016/j.jhazmat.2022.129461] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/03/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
The mechanisms and influencing factors for electron transfer complex need to be further studied by comparing radical and nonradical pathways. Herein, metal-biochar (BC) nanocomposites including CuO/BC, Fe3O4/BC and ZnO/BC were prepared to activate peroxydisulfate (PDS) for bisphenol A (BPA) degradation. The existence of electron transfer complex in CuO/BC-PDS system were directly demonstrated. Whereas radical pathway was dominant in Fe3O4/BC- and ZnO/BC-PDS systems for BPA degradation. There was a relationship between PDS adsorption and catalytic reaction. The rate-limiting step for BPA degradation in nonradical pathway was PDS adsorption, but in radical pathway was BPA degradation. Interestingly, among metal-BC, CuO/BC had the most effective performance in transformation of adsorbed PDS to electron transfer complex via out-sphere complexation. After pretreatment by PDS solutions, the separated CuO/BC achieved an efficiency of 60% in ensuing BPA degradation without re-addition of PDS. In addition, the activity of electron transfer complex in BPA degradation (kobs > 0.0480 min-1) was not affected by water matrix (e.g., Cl-, HCO3-, natural organic matter (NOM) and actual water bodies), but affected by solution property (i.e., dissolved oxygen and conductivity) and oxidant species. Moreover, in BPA degradation process, nonradical pathway exhibited lower ecotoxicity instead of radical pathway.
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Affiliation(s)
- Haoyu Luo
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yi Wan
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Heyang Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yuhao Cai
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Minghan Zhu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou 510006, China
| | - Hua Yin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou 510006, China.
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Wu T, Dong W, Zhang Q, Huang Y, Yang J, Cai X, Chen J, Li X. 金属氧化物对磷酸盐吸附的预测及分子机制. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2022-0367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Xiao Y, Li Y, Shi Y, Li Z, Zhang X, Liu T, Farooq TH, Pan Y, Chen X, Yan W. Combined toxicity of zinc oxide nanoparticles and cadmium inducing root damage in Phytolacca americana L. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151211. [PMID: 34715219 DOI: 10.1016/j.scitotenv.2021.151211] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 05/02/2023]
Abstract
In recent years, nano-contamination in the soil environment has aroused concern. But it is still uncertain whether the interactions of nano- and metal-pollutants would have a combined toxic effect on plants. In this study, we investigated the effects of joint exposure to zinc oxide nanoparticles (ZnO NPs) and Cd on the root tissue of Phytolacca americana L. Spin-polarized density functional theory simulations assumed that the plant may undergo metal toxicity or acidosis upon joint exposure to ZnO NPs/Cd. Subsequently, experimental exposure of P. americana verified the combined toxic effects. The plant grew normally with a single treatment of ZnO NPs (500 mg/kg) or low doses of Cd (10 mg/kg). However, root growth was significantly inhibited with the combined treatments (up to 43% reduction); additionally, Cd ions were transported to the shoot, leading to shoot growth inhibition (translocation factor > 1). The antioxidant enzymes in the root (superoxide dismutase, peroxidase, and catalase) were highly activated to resist stress, accompanied by a greater than two-fold increase in thiobarbituric acid reactive substances. Corresponding to physiological indicators, biological transmission electron microscopy revealed severe damage to the root cells. Moreover, ZnO NPs/Cd accumulation was observed in the root cytoderm, which confirmed the toxicity of the combined effects. Our study provides insight into the potential combined toxicity of ZnO NPs and heavy metals in polluted environments, such as mining areas and electronic waste sites, and agricultural soils.
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Affiliation(s)
- Yunmu Xiao
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Yong Li
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China.
| | - Yang Shi
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Ziqian Li
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Xuyuan Zhang
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Ting Liu
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Taimoor Hassan Farooq
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Yuliang Pan
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China
| | - Xiaoyong Chen
- College of Arts and Sciences, Governors State University, University Park, IL 60484, USA
| | - Wende Yan
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Laboratory of Urban Forest Ecology of Hunan Province, Life & Science Department, Central South University of Forestry and Technology, Changsha, Hunan, PR China.
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16
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Sun X, Guo P, Sun Y, Cui Y. Adsorption of Hexavalent Chromium by Sodium Alginate Fiber Biochar Loaded with Lanthanum. MATERIALS 2021; 14:ma14092224. [PMID: 33925966 PMCID: PMC8123644 DOI: 10.3390/ma14092224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022]
Abstract
Lanthanun oxide (La2O3) is a lanthanum chemical compound incorporates a sensible anionic complexing ability; however, it lacks stability at a low pH scale. Biochar fibers will give the benefit of their massive space and plethoric uses on the surface to support a metal chemical compound. Herein, wet spinning technology was used to load La3+ onto sodium alginate fiber, and to convert La3+ into La2O3 through carbonization. The La2O3-modified biochar (La-BC) fiber was characterized by SEM, XRD and XPS, etc. An adsorption experiment proved that La-BC showed an excellent adsorption capacity for chromates, and its saturation adsorption capacity was about 104.9 mg/g. The information suggested that the adsorption was in step with both the Langmuir and Freundlich models, following pseudo-second-order surface assimilation mechanics, which showed that the Cr (VI) adsorption was characterized by single-phase and polyphase adsorption, mainly chemical adsorption. The thermodynamic parameters proved that the adsorption process was spontaneous and endothermic. The mechanistic investigation revealed that the mechanism of the adsorption of Cr (VI) by La-BC may include electrostatic interaction, ligand exchange, or complexation. Moreover, the co-existing anions and regeneration experiments proved that the La-BC is recyclable and has good prospects in the field of chrome-containing wastewater removal.
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Affiliation(s)
- Xinzhe Sun
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
| | - Peng Guo
- School of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;
| | - Yuanyuan Sun
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
- Correspondence: (Y.S.); (Y.C.); Tel.: +86-152-6423-0805 (Y.S.); +86-137-9323-5399 (Y.C.)
| | - Yuqian Cui
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
- Correspondence: (Y.S.); (Y.C.); Tel.: +86-152-6423-0805 (Y.S.); +86-137-9323-5399 (Y.C.)
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17
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Razanajatovo MR, Gao W, Song Y, Zhao X, Sun Q, Zhang Q. Selective adsorption of phosphate in water using lanthanum-based nanomaterials: A critical review. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Zhang Y, Akindolie MS, Tian X, Wu B, Hu Q, Jiang Z, Wang L, Tao Y, Cao B, Qu J. Enhanced phosphate scavenging with effective recovery by magnetic porous biochar supported La(OH) 3: Kinetics, isotherms, mechanisms and applications for water and real wastewater. BIORESOURCE TECHNOLOGY 2021; 319:124232. [PMID: 33254456 DOI: 10.1016/j.biortech.2020.124232] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 09/28/2020] [Accepted: 10/04/2020] [Indexed: 05/28/2023]
Abstract
Herein, La(OH)3 decorated magnetic porous biochar (MPBC) was synthesized via KHCO3 activation and hydrothermal processes. The La-to-MPBC mass ratio of 3:1 described as La3-MPBC possessed a monolayer phosphate adsorption capacity of 116.08 mg/g across a pH range of 3.0-6.0 with fast attainment of adsorption equilibrium in 150 min. Moreover, the phosphate adsorption was substantially stable during the interference of various co-existing ions with over 92% of phosphate removal and 77% of desorption efficiency maintained after four recycles. And La3-MPBC was easily separated by magnet force with negligible La and Fe leakages within the pH range of 3.0-10.0. Furthermore, La3-MPBC was supported to achieve phosphate binding through the synergistic actions of electrostatic attraction, ligand exchange, inner-sphere complexation and weak precipitation. Significantly, La3-MPBC exhibited a high performance for decontaminating low-concentration phosphate to meet regulatory requirements. All these results suggested La3-MPBC to be an ideal candidate for phosphate removal in real applications.
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Affiliation(s)
- Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Modupe Sarah Akindolie
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Xue Tian
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Bin Wu
- College of Environment, Hohai University, Nanjing 210098, China
| | - Qi Hu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhao Jiang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Lei Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yue Tao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Bo Cao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
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