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Murtaza G, Ahmed Z, Usman M, Iqbal R, Zulfiqar F, Tariq A, Ditta A. Physicochemical properties and performance of non-woody derived biochars for the sustainable removal of aquatic pollutants: A systematic review. CHEMOSPHERE 2024; 359:142368. [PMID: 38763397 DOI: 10.1016/j.chemosphere.2024.142368] [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: 05/26/2023] [Revised: 10/14/2023] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
Biochar is a carbon-rich material produced from the partial combustion of different biomass residues. It can be used as a promising material for adsorbing pollutants from soil and water and promoting environmental sustainability. Extensive research has been conducted on biochars prepared from different feedstocks used for pollutant removal. However, a comprehensive review of biochar derived from non-woody feedstocks (NWF) and its physiochemical attributes, adsorption capacities, and performance in removing heavy metals, antibiotics, and organic pollutants from water systems needs to be included. This review revealed that the biochars derived from NWF and their adsorption efficiency varied greatly according to pyrolysis temperatures. However, biochars (NWF) pyrolyzed at higher temperatures (400-800 °C) manifested excellent physiochemical and structural attributes as well as significant removal effectiveness against antibiotics, heavy metals, and organic compounds from contaminated water. This review further highlighted why biochars prepared from NWF are most valuable/beneficial for water treatment. What preparatory conditions (pyrolysis temperature, residence time, heating rate, and gas flow rate) are necessary to design a desirable biochar containing superior physiochemical and structural properties, and adsorption efficiency for aquatic pollutants? The findings of this review will provide new research directions in the field of water decontamination through the application of NWF-derived adsorbents.
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Affiliation(s)
- Ghulam Murtaza
- Faculty of Environmental Science and Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Zeeshan Ahmed
- Xinjiang Institute of Ecology & Geography, Chinese Academy of Sciences, Urumqi, Xinjiang, 830011, China; Xinjiang Institute of Ecology & Geography, Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Xinjiang, 848300, China; College of Life Science, Shenyang Normal University, Shenyang, 110034, China.
| | - Muhammad Usman
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minghang District, Shanghai, 200240, China
| | - Rashid Iqbal
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Pakistan
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Pakistan
| | - Akash Tariq
- Xinjiang Institute of Ecology & Geography, Chinese Academy of Sciences, Urumqi, Xinjiang, 830011, China; Xinjiang Institute of Ecology & Geography, Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Xinjiang, 848300, China
| | - Allah Ditta
- Department of Environmental Sciences, Shaheed Benazir Bhutto University, Sheringal, Dir (Upper), 18000, Khyber Pakhtunkhwa, Pakistan; School of Biological Sciences, The University of Western Australia, Perth, WA, 6009, Australia.
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2
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Chen X, Zhong J, Lin H, Ye Z, Wang Y, Ma X. Efficient enrichment of uranium (VI) in aqueous solution using magnesium-aluminum layered double hydroxide composite phosphate-modified hydrothermal biochar: Mechanism and adsorption. CHEMOSPHERE 2024; 362:142667. [PMID: 38906190 DOI: 10.1016/j.chemosphere.2024.142667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 06/01/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
This study presents the successful synthesis of Magnesium-aluminum layered double hydroxide composite phosphate-modified hydrothermal biochar for efficient removal of U(VI) from aqueous solutions. A novel synthesis approach involving phosphate thermal polymerization-hydrothermal method was employed, deviating from conventional pyrolysis methods, to produce hydrothermal biochar. The combination of solvent thermal polymerization technique with hydrothermal process facilitated efficient loading of layered double hydroxide (LDH) components onto the biochar surface, ensuring simplicity, low energy consumption and enhanced modifiability. Bamboo waste was utilized as the precursor for biochar, highlighting its superior green and sustainable characteristics. Additionally, this study elucidated the interactions between phosphate-modified hydrothermal biochar and LDH components with U(VI). Physicochemical analysis demonstrated that the composite biochar possessed a high surface area and abundant oxygen-containing functional groups. XPS and FTIR analyses confirmed the efficient adsorption of U(VI), attributed to chelation interactions between phosphate groups, magnesium hydroxyl groups, hydroxyl groups and U(VI), as well as the co-precipitation of U(VI) with multi-hydroxyl aluminum cations captured by LDH. The composite biochar reached adsorption equilibrium with U(VI) within 80 min and exhibited excellent fitting to the pseudo-second-order kinetic model and Langmuir model. Under conditions of pH = 4 and 298 K, it displayed significantly high maximum adsorption capacity of approximately 388.81 mg g⁻1, surpassing untreated biochar by 17-fold. The adsorption process was found to be endothermic and spontaneous and even after five consecutive adsorption-desorption cycles, the removal efficiency of U(VI) remained stable at 75.46%. These findings underscore the promising application prospects of Magnesium-aluminum layered double hydroxide composite phosphate-modified hydrothermal biochar in efficiently separating U(VI) from uranium-containing wastewater, emphasizing its environmental and economic value.
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Affiliation(s)
- Xinchen Chen
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, Guangdong, China.
| | - Jingyu Zhong
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, Guangdong, China.
| | - Huanyue Lin
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, Guangdong, China.
| | - Ziyuan Ye
- Faculty of Psychology, Beijing Normal University, Zhuhai, 519082, Guangdong, China.
| | - Yun Wang
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Xianfeng Ma
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, Guangdong, China.
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Jin H, Song Z, Luo Y, Mao Y, Yan Q, Huang Z, Kang H, Yan X, Xing J, Wu Y. Seeking the adsorption of tetracycline in water by Fe-modified sludge biochar at different pyrolysis temperatures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:36702-36715. [PMID: 38753232 DOI: 10.1007/s11356-024-33631-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/06/2024] [Indexed: 06/20/2024]
Abstract
The composite material SBC-Fe-x with sludge and Fe3+ was developed by different calcination temperatures (600, 700, and 800 °C) for the removal of tetracycline (TC). The adsorption rates of SBC-Fe-600, SBC-Fe-700, and SBC-Fe-800 were 77.5%, 89%, and 91%, respectively. Furthermore, the Langmuir model indicated that the maximum adsorption capacity of SBC-Fe-700 (157.93 mg/g) was three times greater than that of SBC-Fe-600. The conclusions were confirmed by a series of characterizations that SBC-Fe-700 showed a larger specific surface area, well-developed pore structure, rich oxygen-containing functional groups and a high degree of graphitization. The results of pH experiments indicated the broad applicability of SBC-Fe-700 for TC adsorption. In addition, SBC-Fe-700 suggested outstanding performance in different water environments. This work produced a feasible adsorbent for the removal of TC, and a new direction for sludge resource utilization was proposed.
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Affiliation(s)
- Hanyu Jin
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, People's Republic of China
| | - Zhongxian Song
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
| | - Yulong Luo
- Faculty of Innovation and Design, City University of Macao, Macao, 999078, People's Republic of China
| | - Yanli Mao
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China.
| | - Qun Yan
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, People's Republic of China
| | - Zhenzhen Huang
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
| | - Haiyan Kang
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
| | - Xu Yan
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
| | - Jiajing Xing
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
| | - Yongle Wu
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, People's Republic of China
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Liu J, Qiu R, Wei X, Xiong X, Ren S, Wan Y, Wu H, Yuan W, Wang J, Kang M. MnFe 2O 4-biochar decreases bioavailable fractions of thallium in highly acidic soils from pyrite mining area. ENVIRONMENTAL RESEARCH 2024; 241:117577. [PMID: 37923109 DOI: 10.1016/j.envres.2023.117577] [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: 06/02/2023] [Revised: 09/09/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
The prevalence of toxic element thallium (Tl) in soils is of increasing concern as a hidden hazard in agricultural systems and food chains. In the present work, pure biochar (as a comparison) and jacobsite (MnFe2O4)-biochar composite (MFBC) were evaluated for their immobilization effects in Tl-polluted agricultural soils (Tl: ∼10 mg/kg). Overall, MFBC exhibited an efficient effect on Tl immobilization, and the effect was strengthened with the increase of amendment ratio. After being amended by MFBC for 15 and 30 days, the labile fraction of Tl in soil decreased from 1.55 to 0.97 mg/kg, and from 1.51 to 0.88 mg/kg, respectively. In addition, pH (3.05) of the highly acidic soil increased to a maximum of 3.97 after the immobilization process. Since the weak acid extractable and oxidizable Tl were the preponderantly mitigated fractions and displayed a negative correlation with pH, it can be inferred that pH may serve as one of the most critical factors in regulating the Tl immobilization process in MFBC-amended acidic soils. This study indicated a great potential of jacobsite-biochar amendment in stabilization and immobilization of Tl in highly acidic and Tl-polluted agricultural soils; and it would bring considerable environmental benefit to these Tl-contaminated sites whose occurrence has significantly increased in recent decades near the pyrite or other sulfide ore mining and smelting area elsewhere.
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Affiliation(s)
- Juan Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Ruoxuan Qiu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Xudong Wei
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Department of Agronomy, Food, Natural resources, Animals and Environment (DAFNAE) University of Padova, Agripolis Campus, Viale dell'Università, 16, 35020, Legnaro, PD, Italy
| | - Xinni Xiong
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Shixing Ren
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Yuebing Wan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Hanyu Wu
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, 519082, China
| | - Wenhuan Yuan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Jin Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Mingliang Kang
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, 519082, China.
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Yuan Y, Xia H, Guo W, Huang B, Chen Y, Qiu M, Wang Y, Hu B. The modified biochar from wheat straw by the combined composites of MnFe 2O 4 nanoparticles and chitosan Schiff base for enhanced removal of U(VI) ions from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:126045-126056. [PMID: 38008835 DOI: 10.1007/s11356-023-30961-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 11/05/2023] [Indexed: 11/28/2023]
Abstract
In the last few decades, U(VI) is a significant environmental threat. The innovative and environmentally friendly adsorbent materials for U(VI) removal were urgent. Preparation of the modified biochar from wheat straw by combined composites of MnFe2O4 nanoparticles and chitosan Schiff base (MnFe2O4@CsSB/BC) was characterized, and adsorption experiments were carried out to investigate the performance and interfacial mechanism of U(VI) removal. The results showed that MnFe2O4@CsSB/BC exhibited high adsorption capacity of U(VI) compared with BC. The adsorption process of U(VI) removal by MnFe2O4@CsSB/BC could be ascribed as pseudo-second-order model and Langmuir model. The maximum adsorption capacity of U(VI) removal by MnFe2O4@CsSB/BC reached 19.57 mg/g at pH4.0, 30 mg/L of U(VI), and 25 °C. The possible mechanism was a chemical adsorption process, and it mainly contained electrostatic attraction and surface complexation. Additionally, it also was an economic and environmental friendly adsorbent.
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Affiliation(s)
- Youdi Yuan
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Haixin Xia
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Weijuan Guo
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Binbin Huang
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Yujun Chen
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Muqing Qiu
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Yuchun Wang
- Zhejiang Kunhe Environmental Protection Technology Co., Ltd., Shaoxing, 312000, People's Republic of China
| | - Baowei Hu
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
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Liu Y, Yuan W, Lin W, Yu S, Zhou L, Zeng Q, Wang J, Tao L, Dai Q, Liu J. Efficacy and mechanisms of δ-MnO 2 modified biochar with enhanced porous structure for uranium(VI) separation from wastewater. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122262. [PMID: 37506804 DOI: 10.1016/j.envpol.2023.122262] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
Even though uranium (U) is considered to be an essential strategic resource with vital significance to nuclear power development and climate change mitigation, U exposure to human and ecological environment has received growing concerns due to its both highly chemically toxic and radioactively hazardous property. In this study, a composite (M-BC) based on Ficus macrocarpa (banyan tree) aerial roots biochar (BC) modified by δ-MnO2 was designed to separate U(VI) from synthetic wastewater. The results showed that the separation capacity of M-BC was 61.53 mg/g under the solid - liquid ratio of 1 g/L, which was significantly higher than that of BC (12.39 mg/g). The separation behavior of U(VI) both by BC and M-BC fitted well with Freundlich isothermal models, indicating multilayer adsorption occurring on heterogeneous surfaces. The reaction process was consistent with the pseudo-second-order kinetic model and the main rate-limiting step was particle diffusion process. It is worthy to note that the removal of U(VI) by M-BC was maintained at 94.56% even after five cycles, indicating excellent reusability and promising application potential. Multiple characterization techniques (e.g. Scanning Electron Microscope-Energy Dispersive Spectrometer (SEM-EDS), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) and X-ray Photoelectron Spectroscopy (XPS)) uncovered that U(VI) complexation with oxygen-containing functional groups (e.g. O-CO and Mn-O) and cation exchange with protonated ≡MnOH were the dominant mechanisms for U(VI) removal. Application in real uranium wastewater treatment showed that 96% removal of U was achieved by M-BC and more than 92% of co-existing (potentially) toxic metals such as Tl, Co, Pb, Cu and Zn were simultaneously removed. The work verified a feasible candidate of banyan tree aerial roots biowaste based δ-MnO2-modified porous BC composites for efficient separation of U(VI) from uranium wastewater, which are beneficial to help address the dilemma between sustainability of nuclear power and subsequent hazard elimination.
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Affiliation(s)
- Yanyi Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Wenhuan Yuan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Wenli Lin
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Shan Yu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Lei Zhou
- School of Environment and Resource, Key Laboratory of Solid Waste Treatment and Resource Recycling, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Qingyi Zeng
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, 421001, China
| | - Jin Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Luoheng Tao
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Qunwei Dai
- School of Environment and Resource, Key Laboratory of Solid Waste Treatment and Resource Recycling, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Juan Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
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Chen X, Cai S, Zhang N, Yang J, Peng T, Yang F. Biosorption of U(VI) and mechanisms by live and dead cells of Sphingopyxis sp. YF1. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109469-109480. [PMID: 37924175 DOI: 10.1007/s11356-023-29881-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/10/2023] [Indexed: 11/06/2023]
Abstract
Heavy metal pollution seriously threatens the environment and human health. The biosorption of heavy metals has attracted worldwide attention due to its cost-effectiveness and environmental friendliness. It is significant to develop biosorbents with excellent adsorption performance. Sphingopyxis is widely used in the removal of various organic pollutants, but its potential application in heavy metal adsorption has been largely overlooked. This study investigates the biosorption of U(VI) onto live and dead cells of a Sphingopyxis strain YF1. The effects of pH, contact time and initial ion concentration on U(VI) adsorption investigated, and kinetic and isothermal models were used to fit the adsorption results. The results show that under pH 3-6, the adsorption of U(VI) by YF1 live cells increased with the increase of the pH. Both the pseudo-first order and pseudo-second order models can satisfactorily interpret the adsorption by live and dead cells. Three isothermal adsorption models (Langmuir, Freundlich, and Sips) were used to fit the adsorption process. The adsorption of uranium by live and dead cells was best fitted by the Sips model. The maximal adsorption capacities of U(VI) by live and dead cells were 140.7 mg g-1 and 205.7 mg g-1, respectively. The mechanisms of U(VI) adsorption by Sphingopyxis sp. YF1 were revealed. Scanning electron microscopy and energy dispersive spectroscopy (SEM-EDS) show that U(VI) was deposited on the surface of the bacterial cells. Fourier-transform infrared spectroscopy (FTIR) shows that amine, hydroxyl, alkyl, amide I, amide II, phosphate, carboxylates and carboxylic acids were the major functional groups that are involved in U(VI) adsorption by live and dead cells. X-ray photoelectron spectroscopy (XPS) suggests that the main functional groups of live cells involved in adsorption were O = C-O, C-OH/C-O-C and N-C = O. This study indicates Sphingopyxis sp. YF1 is a high-efficiency U(VI)-adsorbing strain, promising to remove U(VI) from aquatic environment.
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Affiliation(s)
- Xinxin Chen
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Siheng Cai
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Nan Zhang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Jieqiu Yang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Tangjian Peng
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Fei Yang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China.
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, China.
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Grassi P, Georgin J, S P Franco D, Sá ÍMGL, Lins PVS, Foletto EL, Jahn SL, Meili L, Rangabhashiyam S. Removal of dyes from water using Citrullus lanatus seed powder in continuous and discontinuous systems. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:82-97. [PMID: 37345434 DOI: 10.1080/15226514.2023.2225615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
The objective of this study is to develop a low-cost biosorbent using residual seeds of the Citrullus lanatus fruit for the removal of cationic dyes. Physicochemical parameters such as pH, adsorbent mass, contact time, and temperature were evaluated for their effects on dye removal. The biosorbent is composed of lignin and cellulose, exhibiting a highly heterogeneous surface with randomly distributed cavities and bulges. The adsorption of both dyes was most effective at natural pH with a dosage of 0.8 g L-1. Equilibrium was reached within 120 min, regardless of concentration, indicating rapid kinetics. The Elovich model and pseudo-second-order kinetics were observed for crystal violet and basic fuchsin dye, respectively. The Langmuir model fitted well with the equilibrium data of both dyes. However, the increased temperature had a negative impact on dye adsorption. The biosorbent also demonstrated satisfactory performance (R = 43%) against a synthetic mixture of dyes and inorganic salts, with a small mass transfer zone. The adsorption capacities for crystal violet and basic fuchsin dye were 48.13 mg g-1 and 44.26 mg g-1, respectively. Thermodynamic studies confirmed an exothermic nature of adsorption. Overall, this low-cost biosorbent showed potential for the removal of dyes from aqueous solutions.
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Affiliation(s)
- Patricia Grassi
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Jordana Georgin
- Department of Civil and Environmental, Universidad de la Costa, CUC, Barranquilla, Colombia
| | - Dison S P Franco
- Department of Civil and Environmental, Universidad de la Costa, CUC, Barranquilla, Colombia
| | - Ícaro M G L Sá
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Maceió, Brazil
| | - Pollyanna V S Lins
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Maceió, Brazil
| | - Edson L Foletto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Sérgio L Jahn
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Lucas Meili
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Maceió, Brazil
| | - S Rangabhashiyam
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
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9
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Tang Z, Dai Z, Gong M, Chen H, Zhou X, Wang Y, Jiang C, Yu W, Li L. Efficient removal of uranium(VI) from aqueous solution by a novel phosphate-modified biochar supporting zero-valent iron composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40478-40489. [PMID: 36609758 DOI: 10.1007/s11356-022-25124-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Uranium (U) is an important strategic resource as well as a heavy metal element with both chemical and radiotoxicity. At present, the rapid and efficient removal of uranium from wastewater remains a huge challenge for environmental protection and ecological security. In this paper, phosphate-modified biochar supporting nano zero-valent iron (PBC/nZVI) was triumphantly prepared and fully characterized. The introduction of polyphosphate can greatly increase the specific surface area of biochar pores, and then the zero-valent iron can be evenly distributed on the surface of material, thus leading to excellent removal performance of the PBC/nZVI for U(VI). The theoretical maximum U(VI) removal capacity of PBC/nZVI was up to 967.53 mg/g at pH 5. The results of adsorption kinetics, isotherm, and thermodynamics showed that the adsorption of uranium by PBC/nZVI was a monolayer physical adsorption and endothermic reaction. And the PBC/nZVI has favorable selectivity toward uranium against the interference of coexisting metal ions. Further mechanism studies show that the excellent uranium removal performance of PBC/nZVI is mainly attributed to the synergistic effect of physical adsorption and chemical reduction. This work proves that the PBC/nZVI has a wide application prospect in the field of uranium wastewater treatment.
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Affiliation(s)
- Ziwei Tang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Zhongran Dai
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Mi Gong
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Hong Chen
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Xiayu Zhou
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Yating Wang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Cong Jiang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Wanying Yu
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Le Li
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
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10
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He Y, Wang Y, Cai C, Yang G, Zhou L, Ran G, Chen T, Zhu W. Cotton stalk derived carbon pretreated by microbial fermentation for selective uranium extraction. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08827-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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11
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Chen X, Xia H, Lv J, Liu Y, Li Y, Xu L, Xie C, Wang Y. Magnetic hydrothermal biochar for efficient enrichment of uranium(VI) by embedding Fe3O4 nanoparticles on bamboo materials from “one-can” strategy. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Núñez-Delgado A, Zhang Z, Bontempi E, Coccia M, Race M, Zhou Y. Editorial on the Topic "New Research on Detection and Removal of Emerging Pollutants". MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16020725. [PMID: 36676459 PMCID: PMC9861507 DOI: 10.3390/ma16020725] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 05/19/2023]
Abstract
With the Topic "New Research on Detection and Removal of Emerging Pollutants" (https://www [...].
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Affiliation(s)
- Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University Santiago de Compostela, 27002 Lugo, Spain
- Correspondence:
| | - Zhien Zhang
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Elza Bontempi
- INSTM (National Interuniversity Consortium of Materials Science and Technology), Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, 25123 Brescia, Italy
| | - Mario Coccia
- Research Institute on Sustainable Economic Growth, National Research Council of Italy (CNR), Turin Research Area of the CNR, 10135 Turin, Italy
| | - Marco Race
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043 Cassino, Italy
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
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13
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Lingamdinne LP, Lebaka VR, Koduru JR, Chang YY. Insights into manganese ferrite anchored graphene oxide to remove Cd(II) and U(VI) via batch and semi-batch columns and its potential antibacterial applications. CHEMOSPHERE 2023; 310:136888. [PMID: 36265706 DOI: 10.1016/j.chemosphere.2022.136888] [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: 07/11/2022] [Revised: 09/26/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
The bioaccumulation, non-biodegradability, and high toxicity of Cd(II) and U(VI) in water is a serious concerns. Manganese ferrite/graphene oxide (GMF) nanocomposites were synthesized, characterized, and used to efficiently remove Cd(II) and U(VI) from an aqueous solution in this study. X-ray diffraction (XRD) and X-ray photoemission spectroscopy (XPS) analyses, respectively, confirmed the formation of GMF and the adsorptive removal mechanism. The XRD results revealed an amorphous structure when MnFe2O4 was loaded onto the GO surface. XPS results suggest that C = C, C-OorOH, and metal oxides are responsible for the removal of Cd(II) and U(VI) via electrostatic and chemical interaction. According to the Brunauer Emmett and Teller (BET), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) characterization analysis, GMF has a high surface area (117.78 m2/g) and a spherical shape with even distribution. The kinetics data were successfully reproduced by a pseudo-second-order non-linear model indicating the complexity of the sorption mechanism was rate-limiting. The maximum Langmuir uptake ability of GMF for Cd(II) and U(VI) was calculated to be 232.56 mg/g and 201.65 mg/g, respectively. Using external magnetic power, the prepared GMF can easily separate from the aqueous solution and can keep both metal ions under Environmental protection agency standards in water for up to six cycles of re-use of GMF. Finally, the GMF nanocomposite demonstrated significant promise as an adsorbent for removing Cd(II) and U(VI) from actual contaminated water samples. The antibacterial test was expanded to include gram-negative E. coli and gram-positive S. aureus to better understand GMF's bacterial inhibition efficacy.
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Affiliation(s)
| | | | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
| | - Yoon-Young Chang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
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14
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Liu Y, Xu Z, Xia C, Hu B, Zeng W, Zhu Y. Extremely effective removal of U(VI) from aqueous solution by 3D flower-like calcium phosphate synthesized using mussel shells and rice bran. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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15
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Fito J, Nkambule TTI. Synthesis of biochar-CoFe 2O 4 nanocomposite for adsorption of methylparaben from wastewater under full factorial experimental design. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 195:241. [PMID: 36576670 DOI: 10.1007/s10661-022-10819-w] [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: 08/22/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
The presence of endocrine-disrupting chemicals in municipal wastewater has emerged as a threat to human health and the environment. Therefore, this study aimed to develop biochar-cobalt ferrite (BCF) nanocomposite for the removal of methylparaben from water under the full factorial experimental design of 4 factors with 3 levels (34). The biochar-CoFe2O4 nanocomposite was developed by co-precipitation method from cobalt ferrite and biochar of Eucalyptus tree bark. Adsorbent surface morphology and functional and elemental composition were carried out by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and energy-dispersive X-ray spectroscopy (EDS) techniques which showed the presence of cracks with a rough surface, reasonable surface chemical composition, and many chemical functional groups, respectively. The experimental and predicted adsorption efficiencies ranged from 25.3 to 85.6% and 21.8 to 80.3%, respectively. The maximum adsorption performance (85.6%) reduced the methylparaben concentration from 27.5 to 4.0 mg/L at the optimum condition of adsorbent dose of 55 mg/100 mL, pH 6, contact time 90 min, and the initial methylparaben concentration of 27.5 mg/L. However, the adsorbent dose was the most influential main factor whereas the least influential was the interaction between solution pH and contact time under the regression model. The model also showed that 69% methylparaben removal was described by the regression model. The experimental data best fitted with the Freundlich model indicate multilayer adsorption which is the implication of physisorption. The sorption mechanism is attributed to Vander Waals forces, H-bonding, and dipole interaction. This BCF nanocomposite adsorbent appears to be promising for the removal of methylparaben from wastewater, but a further optimization process is essential to boost the treatment performance.
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Affiliation(s)
- Jemal Fito
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Science Campus, Johannesburg, 1710, South Africa.
| | - Thabo T I Nkambule
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Science Campus, Johannesburg, 1710, South Africa
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16
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Qiu M, Liu L, Ling Q, Cai Y, Yu S, Wang S, Fu D, Hu B, Wang X. Biochar for the removal of contaminants from soil and water: a review. BIOCHAR 2022; 4:19. [DOI: doi.org/10.1007/s42773-022-00146-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/23/2022] [Indexed: 06/25/2023]
Abstract
AbstractBiochar shows significant potential to serve as a globally applicable material to remediate water and soil owing to the extensive availability of feedstocks and conducive physio-chemical surface characteristics. This review aims to highlight biochar production technologies, characteristics of biochar, and the latest advancements in immobilizing and eliminating heavy metal ions and organic pollutants in soil and water. Pyrolysis temperature, heat transfer rate, residence time, and type of feedstock are critical influential parameters. Biochar’s efficacy in managing contaminants relies on the pore size distribution, surface groups, and ion-exchange capacity. The molecular composition and physical architecture of biochar may be crucial when practically applied to water and soil. In general, biochar produced at relatively high pyrolysis temperatures can effectively manage organic pollutants via increasing surface area, hydrophobicity and microporosity. Biochar generated at lower temperatures is deemed to be more suitable for removing polar organic and inorganic pollutants through oxygen-containing functional groups, precipitation and electrostatic attraction. This review also presents the existing obstacles and future research direction related to biochar-based materials in immobilizing organic contaminants and heavy metal ions in effluents and soil.
Graphical Abstract
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17
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Chang J, Yu S, Liao Y, Guan X, Gao H, Li Y. One-Step Pyrolysis Fabrication of Magnetic Bagasse Biochar Composites with Excellent Lead Adsorption Performance. ACS OMEGA 2022; 7:42854-42864. [PMID: 36467949 PMCID: PMC9713865 DOI: 10.1021/acsomega.2c04882] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
In the present study, a magnetically separable adsorbent, manganese ferrite (MnFe2O4)/sugarcane bagasse biochar magnetic composites (MFSCBB-MCs), was fabricated through a one-step pyrolysis method. The characterization of the prepared adsorbents indicated that MnFe2O4 nanoparticles were successfully embedded into the biochar matrix, offering magnetic separability and increasing the negative charges on the surface relative to the pristine biochar. Batch adsorption tests indicated that the adsorption of lead on MFSCBB-MCs was pH- and dose-dependent. The experimental results were effectively fitted using the pseudo-second-order kinetic model (R 2 > 0.99) and the Langmuir isotherm equation (R 2 > 0.99), indicating the main chemisorption pathway and monolayer coverage process. Meanwhile, lead adsorption was found to be spontaneous and endothermic, as shown by the study of thermodynamic parameters. The maximum capacity, q m, calculated from the Langmuir model was 155.21 mg·g-1 at 25 °C, demonstrating excellent adsorption capability compared with several previously reported bagasse adsorbents. Based on adsorption mechanism analysis, physical adsorption, electrostatic attraction, and complexation were all involved in the lead(II) adsorption process on MFSCBB-MCs. Furthermore, the adsorbent was easily regenerated as indicated by the high magnetic separation and chemical desorption potential after five cycles, so it is a cost-effective and environmentally favorable adsorbent for wastewater lead removal.
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Affiliation(s)
- Jinming Chang
- Chemical
Synthesis and Pollution Control Key Laboratory of Sichuan Province,
College of Chemistry and Chemical Engineering, China West Normal University, Nanchong637000, China
| | - Sheng Yu
- Chemical
Synthesis and Pollution Control Key Laboratory of Sichuan Province,
College of Chemistry and Chemical Engineering, China West Normal University, Nanchong637000, China
| | - Yunwen Liao
- Chemical
Synthesis and Pollution Control Key Laboratory of Sichuan Province,
College of Chemistry and Chemical Engineering, China West Normal University, Nanchong637000, China
| | - Xiaoyu Guan
- Shaanxi
Collaborative Innovation Center of Industrial Auxiliary Chemistry
& Technology, Shaanxi University of
Science & Technology, Xian710021, China
| | - Hejun Gao
- Chemical
Synthesis and Pollution Control Key Laboratory of Sichuan Province,
College of Chemistry and Chemical Engineering, China West Normal University, Nanchong637000, China
| | - Yulong Li
- Key
Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Sichuan University of Science & Engineering, Zigong643000, China
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18
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Feng Y, Qiu X, Tao Z, E Z, Song J, Dong Y, Liang J, Li P, Fan Q. Oxygen-containing groups in cellulose and lignin biochar: their roles in U(VI) adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76728-76738. [PMID: 35670935 DOI: 10.1007/s11356-022-20981-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
The adsorption behaviors of cellulose and lignin biochar depend on the evolution of their oxygen-containing groups to some extent. In this study, cellulose-rich pakchoi and lignin-rich corncob were selected to prepare the pyrolytic biochar at variable temperatures, named PBC and CBC, respectively. Their structure-function relationships were in-depth studied via the combination of the adsorption experiments of U(VI) and comprehensive spectral analyses. The maximal adsorption capacity of PBC 300, obtained at 300 °C, was measured as 46.62 mg g-1 for U(VI), which was ⁓1.3 times higher than 35.60 mg g-1 of CBC 300. U(VI) adsorption on PBC and CBC were predominantly ascribed to the coordination interaction between oxygen-containing groups and U(VI). Interestingly, the main complexation groups were distinct in both biochars due to the different inherent evolutions of cellulose and lignin. Volatile d-glucose chains in cellulose were apt to degrade rapidly, and the formed carboxyls acted as the most important sites in PBC. However, the stable aromatic network in lignin led to a slow degradation, and more hydroxyls thus remained in CBC, which controlled U(VI) adsorption. In this study, we obtained greatly cost-effective adsorbents of U(VI) and provided some essential insights into understanding the structural evolution-function relationship of cellulose and lignin biochar.
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Affiliation(s)
- Yongzhong Feng
- Gansu Province Land Development and Rehabilitation Center, Lanzhou, 730000, China
| | - Xiaoyi Qiu
- Gansu Province Land Development and Rehabilitation Center, Lanzhou, 730000, China
| | - Zhuolin Tao
- Gansu Province Land Development and Rehabilitation Center, Lanzhou, 730000, China
| | - Zhengyang E
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiayu Song
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yaqiong Dong
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianjun Liang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Key Laboratory of Petroleum Resources, Lanzhou, 730000, Gansu Province, China.
| | - Ping Li
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Petroleum Resources, Lanzhou, 730000, Gansu Province, China
| | - Qiaohui Fan
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Petroleum Resources, Lanzhou, 730000, Gansu Province, China
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19
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Ahmed W, Xu T, Mahmood M, Núñez-Delgado A, Ali S, Shakoor A, Qaswar M, Zhao H, Liu W, Li W, Mehmood S. Nano-hydroxyapatite modified biochar: Insights into the dynamic adsorption and performance of lead (II) removal from aqueous solution. ENVIRONMENTAL RESEARCH 2022; 214:113827. [PMID: 35863445 DOI: 10.1016/j.envres.2022.113827] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/12/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Adsorption of lead as Pb(II) using biochar is an environmentally sustainable approach to remediate this kind of pollution affecting wastewater. In this study, rice straw biochar (BC) was modified by combination with nano-hydroxy-apatite (HAP), resulting in a material designated as BC@nHAP, with enhanced adsorption performance. Based on Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses, it was evidenced that, after modification, HAP greatly enhanced surface functional groups (i.e., -COOH and/or -OH) of raw biochar's surface. Batch tests showed that the maximum sorption capacity of BC (63.03 mg g-1) was improved due to the modification, reaching 335.88 mg g-1 in BC@nHAP. Pseudo-second order (PSO) kinetics fitted well the adsorption data (R2 = 0.99), as well as the Langmuir isotherm model (showing an adsorption value of 335.88 mg g-1 for qe). The results of thermodynamic calculations showed that the adsorption was primarily governed by chemisorption process. FTIR spectroscopy and XPS spectrum after adsorption further confirmed that the adsorption mechanisms were ion exchange with Pb2+ and surface complexation by -OH and -COOH. In addition, BC@nHAP revealed a brilliant regeneration capability. The maximum adsorption capacity by BC@nHAP was higher than that of raw biochar or other previously reported adsorbents. Therefore, BC@nHAP could be seen as a new sorbent material with high potential for real-scale heavy metal removal from wastewater, and specifically as a capable candidate new sorbent for Pb(II) removal from wastewater, which has clear implications as regard preservation of environmental quality and public health.
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Affiliation(s)
- Waqas Ahmed
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570100, China
| | - Tianwei Xu
- College of Science, Qiongtai Normal University, Haikou, 571127, China
| | - Mohsin Mahmood
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570100, China
| | - Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Sehrish Ali
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, 25198, Lleida, Spain
| | - Muhammad Qaswar
- Department of Environment, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Hongwei Zhao
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570100, China
| | - Wenjie Liu
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570100, China
| | - Weidong Li
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570100, China.
| | - Sajid Mehmood
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570100, China.
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20
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Hu ZT, Wang XF, Xiang S, Ding Y, Zhao DY, Hu M, Pan Z, Varjani S, Wong JWC, Zhao J. Self-cleaning MnZn ferrite/biochar adsorbents for effective removal of tetracycline. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157202. [PMID: 35810898 DOI: 10.1016/j.scitotenv.2022.157202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/02/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
A renewable tri-metallic spinel decorated biochar adsorbent (MZF-BC) was fabricated by a facile hydrothermal method and to remove tetracycline. The physicochemical properties of MZF-BC were well studied. MZF-BC with a hybrid pore structure of mesopores (~7.6 nm) and macropores (~50 nm) has the maximum tetracycline adsorption capacity reaching 142.4 mg g-1. Through the study of adsorption kinetics, isotherms and key influencing factors, it was found that MZF-BC adsorption on tetracycline was primarily multi-layer effect with the initial adsorption behavior of pore filling associated with hydrogen bonding and π-π stacking. Furthermore, the MZF-BC performs excellent regeneration ability by driving Fenton-like catalysis as the self-cleaning process in the liquid phase. This study contributes to a new insight into the in-situ regeneration of biochar-based adsorbents after adsorbing organic pollutants in pharmaceutical wastewater treatment.
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Affiliation(s)
- Zhong-Ting Hu
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China; Industrial Catalysts Institute of ZJUT, Hangzhou 310014, China; Zhejiang PUZE Environmental Protection Technology Pte Ltd, Ningbo 315301, China
| | - Xiao-Fang Wang
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Shuo Xiang
- School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Yin Ding
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Dong-Yang Zhao
- Industrial Catalysts Institute of ZJUT, Hangzhou 310014, China
| | - Mian Hu
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Zhiyan Pan
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India
| | - Jonathan Woon-Chung Wong
- Institute of Bioresource and Agriculture and Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Jun Zhao
- Institute of Bioresource and Agriculture and Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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21
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Fito J, Kefeni KK, Nkambule TTI. The potential of biochar-photocatalytic nanocomposites for removal of organic micropollutants from wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154648. [PMID: 35306069 DOI: 10.1016/j.scitotenv.2022.154648] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/25/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Biochar (BC)-photocatalyst nanocomposites have emerged as appealing water and wastewater treatment technology. Such nanocomposite materials benefit from the synergistic effect of adsorption and photocatalysis to attain improved removal of pollutants from water and wastewater. Under this review, three BC-based nanocomposite photocatalysts such as BC-TiO2, BC-ZnO, and BC-spinel ferrites were considered. These nanocomposites acquire intrinsic properties to improve the practical limitations of the pristine BC and photocatalysts. The BC-based nanocomposites attained high photocatalytic activity, mechanical hardness, thermal stability, chemically non-reactive, magnetically permeable, reduced energy band gaps, improved reusability, and simplified recovery. Moreover, BC-based photocatalytic nanocomposites showed reduced recombination rates of the electron-hole pairs which are desirable for photocatalytic applications. However, the surface areas of the composites are usually smaller than that of the BC but higher than those of the pristine photocatalysts. Practically, the performances of the nanocomposites are much superior to those of the corresponding pristine components. This hybrid treatment technology is an emerging field and its industrial application is still at an early stage of the investigation. Therefore, exploring the full potential and practical applications of this technology is highly encouraging. Hence, this review focused on the critical evaluation of the most recent research on the synthesis, characterization, and photocatalytic treatment efficiency of the BC photocatalyst nanocomposites towards emerging pollutants in the aqueous medium. Moreover, the influence of various sources of BC feedstocks and their limitations on adsorption and photodegradation activities are discussed in detail. Finally, concluding remarks and future research directions are given to assist and shape the exploration of BC-based nanocomposite photocatalysts in water treatment.
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Affiliation(s)
- Jemal Fito
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Science Campus, 1710, South Africa.
| | - Kebede K Kefeni
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Science Campus, 1710, South Africa.
| | - Thabo T I Nkambule
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Science Campus, 1710, South Africa.
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22
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Adsorption Characteristics and Mechanisms of Fe-Mn Oxide Modified Biochar for Pb(II) in Wastewater. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148420. [PMID: 35886272 PMCID: PMC9316531 DOI: 10.3390/ijerph19148420] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 12/10/2022]
Abstract
This study prepared iron-manganese oxide-modified biochar (FM-BC) by impregnating rice straw biochar (BC) with a mixed solution of ferric nitrate and potassium permanganate. The effects of pH, FM-BC dosage, interference of coexisting ions, adsorption time, incipient Pb(II) concentration, and temperature on the adsorption of Pb(II) by FM-BC were investigated. Moreover, the Pb(II) adsorption mechanism of FM-BC was analyzed using a series of characterization techniques. The results showed that the Fe-Mn oxide composite modification significantly promoted the physical and chemical functions of the biochar surface and the adsorption capacity of Pb(II). The specific surface area of FM-BC was 18.20 times larger than that of BC, and the maximum Pb(II) adsorption capacity reached 165.88 mg/g. Adsorption kinetic tests showed that the adsorption of Pb(II) by FM-BC was based on the pseudo-second-order kinetic model, which indicated that the adsorption process was mainly governed by chemical adsorption. The isothermal adsorption of Pb(II) by FM-BC conformed to the Langmuir model, indicating that the adsorption process was spontaneous and endothermic. Characterization analyses (Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy) showed that the adsorption mechanism of Pb(II) by FM-BC was mainly via electrostatic adsorption, chemical precipitation, complexation, ion exchange, and the transformation of Mn2O3 into MnO2. Therefore, FM-BC is a promising adsorbent for Pb(II) removal from wastewater.
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Liu J, Shi S, Shu J, Li C, He H, Xiao C, Dong X, He Y, Liao J, Liu N, Lan T. Synthesis and characterization of waste commercially available polyacrylonitrile fiber-based new composites for efficient removal of uranyl from U(VI)-CO 3 solutions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153507. [PMID: 35101504 DOI: 10.1016/j.scitotenv.2022.153507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/04/2022] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
The existing species of uranium determines the design of novel sorbents towards uranium extraction from the natural waters. Herein, three composites based on waste commercially available polyacrylonitrile fiber (WPANF), namely WPANF/TiO2·xH2O, WPANF/CTAB-bentonite, and WPANF/NZVI, were first prepared and employed for the removal of U(VI) from the carbonate coexisted aqueous solutions. Among them, the WPANF/TiO2·xH2O exhibited the optimum sorption capacity of ~40.6 mg·g-1 (pH 8.0, C0 = 50 mg·L-1, and [CO3]Total = 2 mmol·L-1), which is significantly greater than the WPANF/CTAB-bentonite (~12.6 mg·g-1) and WPANF/NZVI (~10.3 mg·g-1). All sorption capacities decreased with the increases of initial pH, [NaCl], and [CO3]Total, due to the species transformation from UO2(CO3)22- and (UO2)2CO3(OH)3- to UO2(CO3)34- that enhanced the electrostatic repulsion and the competitive sorption. The XPS analysis and DFT calculations indicated that in the composites, WPANF was a role in strengthening the mechanical properties of composites rather than the main sorption sites for uranyl carbonates. The sorption mechanisms were mainly involved in -OH group coordination, Br- anions exchanges, and redox reactions. Desorption, reusability and U(VI) sorption test in the simulated seawater demonstrated that WPANF/TiO2·xH2O could be an alternative candidate for acquiring uranium resource. This work has screened the potential composites for U(VI) extraction from the natural waters, especially based on the practical U(VI) speciation, and provides a novel research approach for the removal of U(VI) towards U(VI)-CO3 systems.
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Affiliation(s)
- Jun Liu
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Shilong Shi
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Junxiang Shu
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Chao Li
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Hanyi He
- National Key Laboratory for Nuclear Fuel and Materials, Nuclear Power Institute of China, Chengdu 610005, P. R. China
| | - Chuyan Xiao
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, P. R. China
| | - Xiangqian Dong
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Yuhua He
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Jiali Liao
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, P. R. China
| | - Ning Liu
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, P. R. China
| | - Tu Lan
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, P. R. China.
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Liao J, He X, Zhang Y, Zhu W, Zhang L, He Z. Bismuth impregnated biochar for efficient uranium removal from solution: Adsorption behavior and interfacial mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 819:153145. [PMID: 35038520 DOI: 10.1016/j.scitotenv.2022.153145] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
In this work, Bi2O3 doped horse manure-derived biochar was obtained by carbonizing the H2O2-modified horse manure loaded with bismuth nitrate under nitrogen atmosphere at 500 °C. The results showed that there was a sharp response between the as-prepared bismuth impregnated biochar and uranium(VI) species in solution, which resulted in a short equilibrium time (<80 min), a fast adsorption rate (about 5.0 mg/(g·min)), a high removal efficiency (93.9%) and a large adsorption capacity (516.5 mg/g) (T = 298 K, pH = 4, Ci = 10 mg/L and m/V = 0.1 g/L). Besides, the removal behavior of the bismuth impregnated biochar for uranium(VI) did not depend on the interfering ions and ion strength, except Al3+, Ca2+, CO32- and PO43-. These results indicated that the modified biochar might possess the potential of remediating the actual uranium(VI)-containing wastewater. Moreover, the interaction mechanism between Bi2O3 doped biochar and uranium(VI) species was further explored. The results demonstrated that the enrichment of uranium(VI) on the surface of the as-prepared biochar was controlled by various factors, such as surface complexation, ion exchange, electrostatic attraction, precipitation and reduction, which facilitated the adsorption of uranium(VI) on the bismuth impregnated biochar.
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Affiliation(s)
- Jun Liao
- Division of Target Science and Fabrication, Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-987, Mianyang 621900, China; School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xiaoshan He
- Division of Target Science and Fabrication, Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-987, Mianyang 621900, China
| | - Yong Zhang
- School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Wenkun Zhu
- School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Lin Zhang
- Division of Target Science and Fabrication, Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-987, Mianyang 621900, China
| | - Zhibing He
- Division of Target Science and Fabrication, Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-987, Mianyang 621900, China.
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Peng T, Liao W, Gu G, Qiu G, Wu X, Yang F, Zeng W. Insights into the role of extracellular DNA in heavy metal adsorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152067. [PMID: 34863749 DOI: 10.1016/j.scitotenv.2021.152067] [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: 09/01/2021] [Revised: 11/12/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Extracellular polymeric substances (EPS) participate in heavy metal adsorption in the aquatic environments. Extracellular DNA (eDNA) is an essential component of EPS, but its involvement in metal binding remains ambiguous. Herein, the role of eDNA in Cd(II) and Ni(II) adsorption was described using a combination of semi-quantitative and qualitative approaches. EPS were extracted from Burkholderia sp. MBR-1 and eDNA accounted for 6.9% of the total mass of EPS. The eDNA in the extracted EPS was digested using the DNase II to prepare an eDNA-free EPS sample. Potentiometric titration unveiled that the number of total binding sites of the eDNA-free EPS was 19% lower than the untreated EPS. The Cd(II) and Ni(II) adsorption capacity of the eDNA-free EPS was lower than the untreated EPS at the pH range of 4-7. At pH 7, the results of batch adsorption experiments showed that removing eDNA from EPS resulted in declines of 12.6% and 15.7% in the adsorption capacities for Cd(II) and Ni(II), respectively. Furthermore, Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy unraveled that the phosphoryl groups and purines of eDNA are responsible for Cd(II) and Ni(II) complexation. The results demonstrated that eDNA plays an essential role in heavy metal adsorption.
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Affiliation(s)
- Tangjian Peng
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Wanqing Liao
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Guohua Gu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Guanzhou Qiu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Fei Yang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; CSIRO Process Science and Engineering, Clayton, Victoria 3168, Australia.
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Zhang X, Zhang J, Peng Y, Wu X, Li M, Wen H, Sun Z, Ye J, Hua Y. Synergistic removal of glyphosate and U(VI) from aqueous solution by goethite: adsorption behaviour and mechanism. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08223-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lingamdinne LP, Choi JS, Angaru GKR, Karri RR, Yang JK, Chang YY, Koduru JR. Magnetic-watermelon rinds biochar for uranium-contaminated water treatment using an electromagnetic semi-batch column with removal mechanistic investigations. CHEMOSPHERE 2022; 286:131776. [PMID: 34371355 DOI: 10.1016/j.chemosphere.2021.131776] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/15/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
Biosorption using modified biochar has been increasingly adopted for the sustainable removal of uranium-contaminated from an aqueous solution. In this research study, the facile preparation and surface characteristics of magnetized biochar derived from waste watermelon rind to treat U(VI) contaminated water were investigated. The porosity, specific surface area, adsorption capacity, reusability, and stability were effectively improved after the magnetization of biochar. The kinetics and isotherm studies found that the U(VI) adsorption was rate-limiting monolayer sorption on the homogeneous surface of magnetized watermelon rind biochar (MWBC). The maximum adsorption capacity was found to be 323.56 mg of U(VI) per g of MWBC at pH 4.0 and 293 K that was higher than that of watermelon rind biochar (WBC) (135.86 mg g-1) and other sourced biochars. The surface interaction mechanism, environmental feasibility, applicability for real-filed water treatment studied in the electromagnetic semi-batch column, and reusability of MWBC were also explored. Furthermore, salient raised the ion exchange and complexation action capacity of MWBC due to the presence of Fe oxide. The overall results indicated that MWBC was not only inexpensive and had a high removal capacity for U(VI), but it also easily enabled phase separation from an aqueous solution, with more than three times reusability at a minimum removal capacity of 99%.
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Affiliation(s)
| | - Jong-Soo Choi
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | | | - Rama Rao Karri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, 1410, Darussalam, Brunei
| | - Jae-Kyu Yang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Yoon-Young Chang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
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Chen X, Wang Y, Lv J, Feng Z, Liu Y, Xia H, Li Y, Wang C, Zeng K, Liu Y, Yuan D. Simple one-pot synthesis of manganese dioxide modified bamboo-derived biochar composite for uranium(VI) removal. NEW J CHEM 2022. [DOI: 10.1039/d2nj02292c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exploitation of bamboo-derived biochar offers a lucrative opportunity for using moso bamboo due to its short growth cycle, large quantity and universality. Novel MnO2 modified bamboo-derived biochar composites (MnO2@BBC) were...
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Wang R, Li Y, Shuai X, Chen J, Liang R, Liu C. Development of Pectin-Based Aerogels with Several Excellent Properties for the Adsorption of Pb 2. Foods 2021; 10:3127. [PMID: 34945678 PMCID: PMC8700957 DOI: 10.3390/foods10123127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/04/2021] [Accepted: 12/08/2021] [Indexed: 01/22/2023] Open
Abstract
Traditional aerogels lack specific functional groups for the adsorption of Pb2+, which results in a low adsorption capacity and limits the application scope. Novel porous pectin-based aerogels (PPEAs) were prepared by incorporating polyethylenimine (PEI) using ethylene glycol diglycidyl ether (EGDE) as a cross-linker for the removal of Pb2+ from water. The cross-linking mechanism, morphology, mechanical strength, thermal stability, adsorption properties, and mechanism of the aerogels were investigated. The aerogels possessed several desirable features, such as a large maximum Pb2+ adsorption capacity (373.7 mg/g, tested at pH 5.0), ultralight (as low as 63.4 mg/cm3), high mechanical strength (stress above 0.24 MPa at 50% strain), and easy recyclability. Meanwhile, the equilibrium adsorption data was well described by the Langmuir-Freundlich (Sips) model and the kinetic adsorption process was well fitted using the pseudo-second-order model. The donor groups, such as -NH2, and oxygen-containing functional groups were responsible for the Pb2+ adsorption, which was confirmed by the FTIR and XPS analysis. The excellent characteristics mean that PPEAs are highly effective adsorbents in the remediation of lead-containing wastewater.
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Affiliation(s)
- Risi Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (R.W.); (X.S.); (J.C.); (R.L.)
| | - Ya Li
- South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China;
| | - Xixiang Shuai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (R.W.); (X.S.); (J.C.); (R.L.)
| | - Jun Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (R.W.); (X.S.); (J.C.); (R.L.)
| | - Ruihong Liang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (R.W.); (X.S.); (J.C.); (R.L.)
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (R.W.); (X.S.); (J.C.); (R.L.)
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Mehmood S, Ahmed W, Rizwan M, Imtiaz M, Mohamed Ali Elnahal AS, Ditta A, Irshad S, Ikram M, Li W. Comparative efficacy of raw and HNO 3-modified biochar derived from rice straw on vanadium transformation and its uptake by rice (Oryza sativa L.): Insights from photosynthesis, antioxidative response, and gene-expression profile. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117916. [PMID: 34375849 DOI: 10.1016/j.envpol.2021.117916] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/08/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Low concentrations of vanadium (V) are essential for various plant species but it becomes toxic to plants, animals, and humans at high levels. A significant amount of V is currently being emitted into the atmosphere due to intensified industrial processing. Therefore, this study aimed at evaluating the effect of raw (BC) and HNO3-modified biochar (OBC) derived from rice straw on growth, photosynthetic assimilation, relative chlorophyll content, SPAD index, ion leakage, enzyme activities, hydrogen peroxide (H2O2), bioavailability and V uptake by rice in a laboratory-scale experiment. Characterization of OBC and BC by FTIR (Fourier transform infrared spectroscopy), SEM (scan electron microscopy), BET (Brunauer-Emmett-Teller), elemental analysis, and z-potential revealed a substantial difference between both of them. The V-stress significantly reduced the rice plant growth, biomass yield, chlorophyll parameters, root length and surface area. Under V-stress conditions, root accumulated more V than shoots and OBC significantly improved the above-mentioned parameters, while, decreasing hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels in plants. The antioxidant function and gene expression levels induced by V-stress and OBC application further increased the expression profile of three genes (SOD, POD, and CAT) encoding antioxidant enzymes and one metal-tolerant conferring gene (OsFSD1). In summary, these results demonstrated the critical role of OBC in mitigating the detrimental effects of high V-stress on rice growth and enhancing plant defence against V-stress.
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Affiliation(s)
- Sajid Mehmood
- College of Ecology and Environment, Hainan University, Haikou City, 570100, PR China
| | - Waqas Ahmed
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Muhammad Rizwan
- Henan Key Laboratory of Earth System Observation and Modeling, Henan University, Kaifeng, 475004, China; College of Environment and Planning, Henan University, Kaifeng, 475004, China
| | - Muhammad Imtiaz
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | | | - Allah Ditta
- Department of Environmental Sciences, Shaheed Benazir Bhutto University Sheringal, Dir (U), Khyber Pakhtunkhwa, 18000, Pakistan
| | - Sana Irshad
- School of Environmental Studies, China University of Geosciences, Wuhan, 430070, PR China
| | - Muhammad Ikram
- International Crop Research Center for Stress Resistance, School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Weidong Li
- College of Ecology and Environment, Hainan University, Haikou City, 570100, PR China.
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Tian Y, Liu L, Ma F, Zhu X, Dong H, Zhang C, Zhao F. Synthesis of phosphorylated hyper-cross-linked polymers and their efficient uranium adsorption in water. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126538. [PMID: 34323736 DOI: 10.1016/j.jhazmat.2021.126538] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/13/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Uranium (U) is hazardous and radioactive, wastewater containing U(VI) should be treated before being discharged. Here, two novel uranium adsorbents, phosphorylated hyper-cross-linked bisphenol A (PHCP-1) and fluorene-9-bisphenol (PHCP-2) were separately synthesized via Friedel-Crafts reaction followed by phosphorylation using phosphorus oxychloride. PHCPs had a BET surface area (up to 564 m2/g) with pore sizes of 2.2-2.8 nm. These adsorbents were used for the first time for uranium adsorption from water and demonstrated outstanding adsorption performance. PHCP-2 had a great uranium adsorption capacity (297.14 mg/g) and a very fast sorption rate (85% removal rate within 5 min). The adsorption data were well fitted with Freundlich isotherm and the pseudo-second-order kinetic model. PHCPs displayed selective adsorption capacity for U(VI) from solution that including a variety of competing metal ions. The reusability was confirmed through three regeneration cycles. Based on a series of spectroscopic analyses, the mechanism of action between PHCPs and U(VI) is primarily derived from the complex between phosphate functional groups and U (VI). The sorption performance of PHCPs is attributed to their huge specific surface area and the strong complex between phosphate groups and U(VI). These findings suggest that PHCPs could be useful in the effective adsorption of uranium from water.
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Affiliation(s)
- Yao Tian
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Lijia Liu
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Yantai Research Institute and Graduate School of Harbin Engineering University, Yantai 264006, China.
| | - Fuqiu Ma
- Yantai Research Institute and Graduate School of Harbin Engineering University, Yantai 264006, China; College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China.
| | - Xiying Zhu
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Hongxing Dong
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Chunhong Zhang
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Yantai Research Institute and Graduate School of Harbin Engineering University, Yantai 264006, China
| | - Fangbo Zhao
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
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Ahmed W, Núñez-Delgado A, Mehmood S, Ali S, Qaswar M, Shakoor A, Chen DY. Highly efficient uranium (VI) capture from aqueous solution by means of a hydroxyapatite-biochar nanocomposite: Adsorption behavior and mechanism. ENVIRONMENTAL RESEARCH 2021; 201:111518. [PMID: 34129867 DOI: 10.1016/j.envres.2021.111518] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/22/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
The exploration and rational design of easily separable and highly efficient sorbents with the sufficient capability of retaining radioactive and toxic uranium U(VI) is paramount. In this study, a hydroxyapatite (HAP) biochar nanocomposite (BR/HAP) was successfully fabricated from rice straw biochar (BR), to be used as a new and efficient adsorbent for removing U(VI) from aqueous solution. Both BR and the BR/HAP composite were characterized via Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photo electron spectroscopy (XPS) techniques. Batch test results showed that BR/HAP exhibited remarkably higher adsorption capacity than the raw BR. A pseudo-second order kinetic model thoroughly explained the adsorption kinetics, providing the maximum U(VI) adsorption capacities (qe) of 110.56 mg g-1 (R2 = 0.98) and 428.25 mg g-1 (R2 = 0.99), for BR and BR/HAP, respectively, which was indicative of the rate-limited sorption via diffusion or surface complexation after rapid initial adsorption steps. The Langmuir isotherm model fitted the experimental data to accurately simulate the adsorption of U(VI) onto BR and BR/HAP (R2 = 0.97 and R2 = 0.99). The thermodynamic results showed negative values for ΔG°, clearly indicating that the reaction was spontaneous, as well as positive values for ΔH° (11.04 kJ mol-1 and 28.86 kJ mol-1, respectively) and ΔS° (88.97 kJ mol-1 K-1, and 183.42 kJ mol-1 K-1), making clear the endothermic nature of U(VI) adsorption onto both sorbents, with an increase in randomness at a molecular level. FTIR spectroscopy and XPS spectrum further confirmed that the primary mechanisms were ion exchange with UO22+ and surface complexion by -OH and -COOH. In addition, BR/HAP showed an excellent reusability, making it a promising candidate as a new sorbent for U(VI) removal from wastewater. In view of that, it would be interesting to perform future research to explore practical implications of this sorbent material regarding protection from environmental and public health issues related to that pollutant.
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Affiliation(s)
- Waqas Ahmed
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Sajid Mehmood
- College of Ecology and Environment, Hainan University, Haikou City, 570100, PR China
| | - Sehrish Ali
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Muhammad Qaswar
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, 25198, Lleida, Spain
| | - Di-Yun Chen
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China.
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Ahmed W, Mehmood S, Núñez-Delgado A, Ali S, Qaswar M, Shakoor A, Mahmood M, Chen DY. Enhanced adsorption of aqueous Pb(II) by modified biochar produced through pyrolysis of watermelon seeds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 784:147136. [PMID: 33892324 DOI: 10.1016/j.scitotenv.2021.147136] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/10/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
A biochar (BC) was obtained by the pyrolysis of watermelon seeds (WM) in nitrogen environment. In addition, a modified biochar (HP-BC) was obtained by means of H2O2 treatment of BC. Later on, both kinds of biochar (BC and HP-BC) were characterized and compared as regards their potential for Pb(II) adsorption from wastewater. Characterization was performed by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), Zeta potential analysis, elemental mapping, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Pb(II) adsorption characteristics for HP-BC and BC as were evaluated as a function of solution pH, contact time and Pb(II) equilibrium concentration, using kinetic and thermodynamic studies, as well as adsorption isotherms. Regarding kinetics, the pseudo-second order model showed good fitting to experimental data. Based on the Langmuir model, the maximum Pb(II) adsorption capacities were calculated as 44.32 mg g-1 and 60.87 mg g-1 for BC and HP-BC, respectively. Thermodynamic study indicated that Pb(II) adsorption onto BC and HP-BC was spontaneous and primarily governed by chemisorption and surface complexation. In view of the results, the H2O2 modification of the watermelon seeds biochar can be considered as a promising and cost effective approach as regards Pb(II) removal from water/wastewater, which would not cause adverse impacts on the surrounding environments. Overall, it can be seen as a procedure promoting the effective recycling of a waste/by-product, in line of the precepts of the circular economy, aiding to protect human and environmental health.
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Affiliation(s)
- Waqas Ahmed
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
| | - Sajid Mehmood
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
| | - Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Sehrish Ali
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Muhammad Qaswar
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, 25198, Lleida, Spain
| | - Mohsin Mahmood
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest Agriculture and Forestry (A & F) University, Yangling 712100, China
| | - Di-Yun Chen
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou 510006, China.
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Ahmed W, Mehmood S, Núñez-Delgado A, Ali S, Qaswar M, Shakoor A, Maitlo AA, Chen DY. Adsorption of arsenic (III) from aqueous solution by a novel phosphorus-modified biochar obtained from Taraxacum mongolicum Hand-Mazz: Adsorption behavior and mechanistic analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 292:112764. [PMID: 33984639 DOI: 10.1016/j.jenvman.2021.112764] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/10/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
A novel phosphorus (P) modified biochar (PLBC) was produced by pyrolyzing biomass of the dietic herb Taraxacum mongolicum Hand-Mazz (TMHM) and treating it with monopotassium phosphate (KH2PO4). This phosphorous loaded biochar was then assessed as adsorbent for As(III) removal from contaminated water. In the current research, the adsorbent was characterized before and after P loading by means of SEM-EDX, TEM, FTIR and XRD techniques. It was evidenced that the presence of P on the surface of the biochar (BC) could improve its efficiency to remove As(III) from contaminated environments. Adsorption kinetics were evaluated by performing batch-type experiments at varied times and pH values (5, 7 and 9). The kinetic study revealed that a contact time of 24 h was required to attain equilibrium and the experimental data were best fitted to the pseudo-second-order kinetic model (qe = 17.1 mg g-1). In addition, several batch experiments were conducted with varied arsenic concentrations. During the adsorption tests, the maximum adsorption of As(III) was found at pH 5. The adsorption study further showed that compared to BC, PLBC depicted increased removal of As(III) from contaminated solutions. The adsorption experimental data showed the best fit to the Langmuir isotherm model (with R2 = 0.84), with maximum As(III) adsorption capacity reaching 30.76 mg g-1 for PLBC.
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Affiliation(s)
- Waqas Ahmed
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Sajid Mehmood
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Sehrish Ali
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Muhammad Qaswar
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, 25198, Lleida, Spain
| | - Ali Akbar Maitlo
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Soil Fertility Research Institute, Agriculture Research Center, Tandojam, 70060, Department of Agriculture, Government of Sindh, Pakistan
| | - Di-Yun Chen
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China.
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