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Radenković M, Petrović J, Pap S, Kalijadis A, Momčilović M, Krstulović N, Živković S. Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications. CHEMOSPHERE 2024; 347:140684. [PMID: 37979800 DOI: 10.1016/j.chemosphere.2023.140684] [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: 06/14/2023] [Revised: 10/10/2023] [Accepted: 10/17/2023] [Indexed: 11/20/2023]
Abstract
Toxic elements, lead, and copper are often found in wastewater discharged from industries such as mining. The discharge of untreated effluent poses severe environmental challenges and sorption methods using agricultural waste materials are proposed as an efficient and cost-effective solution. For this research, activated sunflower material (ASM) was prepared from abundantly available agricultural sunflower waste residues and utilised to remove Pb2+ and Cu2+ ions from an aqueous medium. To begin, we examine variables that may have an impact on the adsorption process, such as pH, contact time, adsorbent dose, and initial concentration using Box-Behnken Design (BBD) to find optimal conditions. Maximum removal efficiency was found at a pH of 5, contact time of 180 min, and initial concentration of 50 mg/L for Pb2+ and 150 mg/L for Cu2+. Additionally, adsorbent dose differed by element, for Cu2+ it was 200 mg, whilst for Pb2+ it was 124 mg. Features of activated carbon such as morphology, elemental composition, textural properties, and surface functionalities were characterised using SEM-EDS, BET, FTIR, and XPS. The adsorption equilibrium data were analysed by Langmuir, Freundlich, and Dubinin-Radushkevich isotherm models. It was found that the obtained results for Pb2+ adsorption were better described with the Freundlich isotherm model. Maximum adsorption capacities for Pb2+ and Cu2+ were 91.8 mg/g and 20.5 mg/g, respectively. Furthermore, kinetic studies confirmed that the adsorption process followed a pseudo-first-order kinetic model for Pb2+, but for Cu2+ all applied kinetic models fitted experimental data with the same values of the correlation coefficient (R2 = 0.99). After comprehensive analysis using the methods mentioned above, ASM was tested for the removal of Cu2+ from mining wastewater sample, and the obtained removal efficiency was 98.6% ± 2.0%. The results of desorption experiments conducted, confirm that ASM has good potential to be reused for the purpose of removing Cu2+ from wastewater.
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Affiliation(s)
- Marina Radenković
- VINCA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11351, Belgrade, Serbia
| | - Jelena Petrović
- VINCA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11351, Belgrade, Serbia
| | - Sabolc Pap
- Environmental Research Institute, UHI North Highland, University of the Highlands and Islands, Thurso, Scotland, KW14 7JD, UK; Department of Environmental Engineering and Occupational Safety and Health, Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, 21 000, Novi Sad, Serbia
| | - Ana Kalijadis
- VINCA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11351, Belgrade, Serbia
| | - Miloš Momčilović
- VINCA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11351, Belgrade, Serbia
| | - Nikša Krstulović
- Institute of Physics, Bijenička cesta 46, 10000, Zagreb, Croatia
| | - Sanja Živković
- VINCA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11351, Belgrade, Serbia.
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2
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Da Y, Xu M, Ma J, Gao P, Zhang X, Yang G, Wu J, Song C, Long L, Chen C. Remediation of cadmium contaminated soil using K 2FeO 4 modified vinasse biochar. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115171. [PMID: 37348221 DOI: 10.1016/j.ecoenv.2023.115171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/14/2023] [Accepted: 06/18/2023] [Indexed: 06/24/2023]
Abstract
The remediation of cadmium (Cd) contaminated soil is challenging for agricultural practices. In this study, a novel vinasse biochar modified by potassium ferrate (K2FeO4) was synthesized to immobilize Cd in agricultural soil. Three biochars [i.e., vinasse biochar (BC), KMnO4 modified vinasse biochar (MnBC), and K2FeO4 modified vinasse biochar (FeBC)] were applied to compare their efficiencies of Cd immobilization. The results showed that the orders of pH, ash content, and functional groups in different biochar were the same following BC < MnBC < FeBC. Scanning electron microscope images showed that the FeBC has more micropores than MnBC and BC. X-ray diffraction identified manganese oxides and iron oxides within MnBC and FeBC, indicating that Mn and Fe were well loaded on the biochar. In the soil-based pot experiment, both MnBC and FeBC significantly reduced soil available Cd by 23-38% and 36-45% compared with the control, respectively (p < 0.05). In addition, the application of BC, MnBC, and FeBC significantly increased the yield, chlorophyll, and vitamin C of Chinese cabbage (p < 0.05), and decreased its Cd uptake compared with the control. Notably, shoot Cd significantly reduced when 2% FeBC was applied (p < 0.05). Overall, using K2FeO4 to modify vinasse biochar enriched the surface functional groups and minerals as well as reduced Cd availability in soil and its uptake by the plant. Our study showed that K2FeO4 modified vinasse biochar could be used as an ideal amendment for the remediation of Cd-contaminated soil.
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Affiliation(s)
- Yinchen Da
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Min Xu
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China.
| | - Jing Ma
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Ya'an 625014, China
| | - Peng Gao
- Department of Environmental and Occupational Health, and Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh 15261, USA
| | - Xiaohong Zhang
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Gang Yang
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Jun Wu
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Chun Song
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Lulu Long
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Chao Chen
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
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3
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Liu Z, Zhang J, Zhang L, Guan Y, Ji H, Zhang Y, Gao H. Efficient removal of Congo red and methylene blue using biochar from Medulla Tetrapanacis modified by potassium carbonate. BIORESOURCE TECHNOLOGY 2023; 376:128912. [PMID: 36934903 DOI: 10.1016/j.biortech.2023.128912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Biochar (BC) prepared from Medulla Tetrapanacis was recognized as having potential in environmental remediation because of its porous texture, abundant chemical surface groups and mineral composition. In this study, a novel modified biochar (KBC) derived from Medulla Tetrapanacis achieved efficient adsorption of Congo red (CR) and methylene blue (MB). Characterization results suggested that the modification had little effect on the group distribution of KBC, but a dramatic expansion of specific surface area was observed on KBC (1180.45 m2/g) compared to BC (198.51 m2/g). KBC exhibited a maximum sorption of 584.17 mg/g for CR and 318.01 mg/g for MB. Kinetic and isotherm studies revealed sorption of CR and MB by KBC was chemosorption, which occurred on the monolayer surface. The comprehensive analysis also provided the basis for the application of KBC to practical production. These outcomes suggested that KBC may become a new option for the effluent treatment.
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Affiliation(s)
- Zepeng Liu
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Jie Zhang
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Liping Zhang
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Ying Guan
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Hao Ji
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Yu Zhang
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Hui Gao
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China.
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Zhao XY, Zhang ZY, Huang YM, Feng FJ. Enhancing the effect of biochar ageing on reducing cadmium accumulation in Medicago sativa L. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160690. [PMID: 36481133 DOI: 10.1016/j.scitotenv.2022.160690] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/14/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Biochar (BC) application to farmland soil can reduce the mobility and bioavailability of Cd. Nevertheless, BC is prone to natural ageing in soil, which alters its structure, physicochemical properties, thereby affecting the immobilisation of Cd. We used dry-wet and freeze-thaw cycles to mimic the natural ageing of BC, and used adsorption experiments to explore the changes of Cd adsorption capacity of BC and aged BC (ABC). We conducted a pot experiment to investigate the effects of BC and ABC on soil biotic and abiotic factors, alfalfa growth, and Cd accumulation in agricultural soils with high and low Cd concentrations. The increase of specific surface area, pore size, oxygen containing functional groups and mineral composition leads to better adsorption capacity of ABC. The adsorption of Cd(II) by BC and ABC is mainly by monolayer adsorption and chemical adsorption. Applying BC and ABC to Cd-contaminated soil significantly increased the aboveground biomass and decreased the Cd accumulation by reducing the Cd bioconcentration factor in alfalfa. At high Cd levels, adding BC and ABC reduced the Cd content in alfalfa shoots by 32.8 % and 35.1 %, respectively; the fixing effect of ABC was better than that of BC. Adding BC and ABC significantly increased the microbial biomass and geometric mean of enzymes. BC addition increased soil pH by 0.32-0.36 units and cation exchange capacity (CEC) by 15.5 %. Adding BC and ABC significantly increased soil organic matter (SOM) by 5.7 % and 6.2 %, respectively. Random forest analysis showed that SOM, total organic carbon, and fluorescein diacetate hydrolase were important variables for Cd content in alfalfa shoots. Structural equation modelling showed that BC indirectly affected the Cd content in alfalfa shoots by affecting soil pH, CEC, SOM, microbial biomass, and microbial metabolic activity. BC has a long-term effect on alleviating Cd pollution in farmland.
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Affiliation(s)
- Xin-Yu Zhao
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Zhuo-Yun Zhang
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yu-Meng Huang
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Fu-Juan Feng
- College of Life Science, Northeast Forestry University, Harbin, China.
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Insight the Mechanism of MgAl/Layered Double Hydroxide Supported on Rubber Seed Shell Biochar for Remazol Brilliant Violet 5R Removal. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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6
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Wang J, Wang Y, Wang J, Du G, Khan KY, Song Y, Cui X, Cheng Z, Yan B, Chen G. Comparison of cadmium adsorption by hydrochar and pyrochar derived from Napier grass. CHEMOSPHERE 2022; 308:136389. [PMID: 36099990 DOI: 10.1016/j.chemosphere.2022.136389] [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: 07/12/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
Biochar (e.g. pyrochar and hydrochar) is considered a promising adsorbent for Cd removal from aqueous solution. Considering the vastly different physicochemical properties between pyrochar and hydrochar, the Cd2+ sorption capacity and mechanisms of pyrochars and hydrochars should be comparatively determined to guide the production and application of biochar. In this study, the hydrochars and pyrochars were prepared from Napier grass by hydrothermal carbonization (200 and 240 °C) and pyrolysis (300 and 500 °C), respectively, and the physicochemical properties and Cd2+ sorption performances of biochars were systematically determined. The pyrochars had higher pH and ash content as well as better stability, while the hydrochars showed more oxygen-containing functional groups (OFGs) and greater energy density. The pseudo second order kinetic model best fitted the Cd2+ sorption kinetics data of biochars, and the isotherm data of pyrochar and hydrochar were well described by Langmuir and Freundlich models, respectively. In comparison with hydrochar, the pyrochar exhibited better Cd2+ sorption capacity (up to 71.47 mg/g). With increasing production temperature, the Cd2+ sorption capacity of pyrochar elevated, while the reduction was found for hydrochar. The mineral interaction, complexation with surface OFGs, and coordination with π electron were considered the main mechanisms of Cd2+ removal by biochars. The minerals interaction and the complexation with OFGs was the dominant mechanism of Cd2+ removal by pyrochars and hydrochars, respectively. Therefore, the preparation technique and temperature have significant impacts on the sorption capacity and mechanisms of biochar, and pyrochar has better potential for Cd2+ removal than the congenetic hydrochar.
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Affiliation(s)
- Jiangtao Wang
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Yuting Wang
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Junxia Wang
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Guiyue Du
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Kiran Yasmin Khan
- Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, Jiangnan University, Wuxi, 214122, China
| | - Yanxing Song
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Xiaoqiang Cui
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China.
| | - Zhanjun Cheng
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Beibei Yan
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China
| | - Guanyi Chen
- School of Environmental Science and Engineering/ Tianjin Key lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China; School of Mechanical Engineering, Tianjin University of Commerce, Tianjin, 300134, China
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7
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Phoenix dactylifera (date palm)-Derived Biochar Application for the Adsorptive Removal of Multiple Inorganics from Groundwater for Drinking Water Purposes. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07472-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Wei S, Wang L, Wu Y, Liu H. Study on removal of copper ions from aqueous phase by modified sepiolite flocs method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:73492-73503. [PMID: 35624377 DOI: 10.1007/s11356-022-21045-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
With the improvement of environmental protection and standards, the recovery and recycling of copper ions released from industrial wastewater discharge has aroused sufficient research interest. A new adsorbent (ABsep) derived from natural sepiolite (Sep) by modification technology of hexadecyltrimethoxysilane (HDTMS) or tetraethylorthosilicate (TEOS) and flocs separation method for adsorption of Cu2+ in wastewater have been investigated in this paper. The changes of crystal structure and physicochemical properties of Sep during modification process showed that HDTMS and TEOS were loaded onto the Sep surface without inserting into the Sep interlayer structure. The adsorption experimental results presented a smaller amount of ABsep (1 g/L) achieved 97.5% removal of 50 mg/L Cu2+ at pH 6 and temperature of 298 K within a shorter contact time (50 min). It is interesting the adsorption process of Cu2+ on ABsep was spontaneous and exothermic, with physical adsorption dominating, as result of combination of physical adsorption, electrostatic gravitational force, and chemical reaction. Because of good physical-chemical adsorption performance of ABsep surface to Cu2+, high removal rates of Cu2+ from aqueous phase could be achieved after three adsorption regeneration cycles, this indicated the ABsep was expected to be a promising adsorbent of Cu2+ removal for wastewater treatment.
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Affiliation(s)
- Shanshan Wei
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Li Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
| | - Yihai Wu
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Hui Liu
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
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9
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Preparation of Quercus mongolica leaf-derived porous carbon with a large specific surface area for highly effective removal of dye and antibiotic from water. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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10
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Xu M, Dai W, Zhao Z, Zheng J, Huang F, Mei C, Huang S, Liu C, Wang P, Xiao R. Effect of rice straw biochar on three different levels of Cd-contaminated soils: Cd availability, soil properties, and microbial communities. CHEMOSPHERE 2022; 301:134551. [PMID: 35405191 DOI: 10.1016/j.chemosphere.2022.134551] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/31/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Biochar can be effective in immobilizing soil cadmium (Cd), but the difference in its immobilization mechanisms for different levels of Cd-contaminated soils was overlooked. In this study, rice straw biochar (BC) was added to three Cd-contaminated soils following 180 days of incubation, in the process of which the dynamic changes of Cd speciation, soil properties and microbial community diversity were determined. BC could significantly reduce the ratio of acid-soluble in the three soils, especially in light and medium Cd-contaminated soils by more than 20%. The addition of biochar could significantly increase the soil pH, soil organic matter, cation exchange capacity, and the activities of catalase, but decrease the richness and diversity of bacterial communities in all soils. The associations between microbial communities were inhibited in light and medium Cd-contaminated soils, but promoted in heavy Cd-contaminated soils. Furthermore, the main pathway of BC effect on soil Cd availability was also analyzed by partial least squares model (PLS-PM), which indicated that BC indirectly reduced Cd availability mainly by regulating the microbial community in light Cd-contaminated soil, whereas BC directly reduced Cd availability primarily by its own adsorption in medium and heavy Cd-contaminated soils. This research deepened understanding of the mechanisms of stabilization of Cd by biochar for agricultural soils.
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Affiliation(s)
- Meili Xu
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Weijie Dai
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Zilin Zhao
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Jiatong Zheng
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Fei Huang
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Chuang Mei
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, PR China
| | - Shuting Huang
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Chufan Liu
- Shenzhen Academy of Environmental Science, Shenzhen, 518001, PR China
| | - Peng Wang
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Rongbo Xiao
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
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ACTIVATED CARBON MANUFACTURING VIA ALTERNATIVE MEXICAN LIGNOCELLULOSIC BIOMASS AND THEIR APPLICATION IN WATER TREATMENT: PREPARATION CONDITIONS, SURFACE CHEMISTRY ANALYSIS AND HEAVY METAL ADSORPTION PROPERTIES. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Adsorption Kinetics of Imidacloprid, Acetamiprid and Methomyl Pesticides in Aqueous Solution onto Eucalyptus Woodchip Derived Biochar. MINERALS 2022. [DOI: 10.3390/min12050528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This work reports the application of a biochar (BC) derived from eucalyptus wood chips to remove pesticides (imidacloprid, acetamiprid and methomyl) from water. The pseudo-second order kinetic adsorption model is the best fit describing the adsorption of pesticides on BC. Furthermore, the Langmuir model correlated well with the adsorption isotherm data for acetamiprid and methomyl, while the Freundlich model was selected to explain the adsorption of imidacloprid on BC. The maximum adsorption capacities for methomyl, imidacloprid and acetamiprid on the BC material are 32.42, 14.75 and 4.87 mg g−1, respectively. The highest adsorption capacity of methomyl on the BC surface could be the result of multilayer adsorption suggested by the adsorption isotherm studies, with imidacloprid (or acetamiprid) monolayer being adsorbed on the BC surface. The structure, functional groups of pesticides, including their polarity, all played an important role contributing to the performance of biochar sorbent. Preferable interactions between the studied pesticides and the BC surface may include π-π interactions and hydrogen bonding. The steric aromatic entity in adsorbed imidacloprid and acetamiprid on the BC surface may hinder the possibility of other pesticide molecules approaching the available sorption sites on the surface.
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Yin K, Wang J, Zhai S, Xu X, Li T, Sun S, Xu S, Zhang X, Wang C, Hao Y. Adsorption mechanisms for cadmium from aqueous solutions by oxidant-modified biochar derived from Platanus orientalis Linn leaves. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128261. [PMID: 35033912 DOI: 10.1016/j.jhazmat.2022.128261] [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: 10/26/2021] [Revised: 01/06/2022] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
To understand the adsorption mechanisms of Cd2+ by oxidant-modified biochar (OMB) derived from Platanus orientalis Linn (POL) leaves, batch adsorption experiments and characterization were carried out. The results showed that, KMnO4-modified biochar (MBC) could more effectively remove Cd2+ from aqueous solution than H2O-, H2O2-, and K2Cr2O7-modified biochar (WBC, HBC and PBC, respectively). The highest removal efficiency was 98.57%, which was achieved by the addition of 2 g L-1 MBC at pH 6.0. According to the Langmuir fitting parameters, the maximum adsorption capacity for MBC was 52.5 mg g-1 at 30 ℃, which was twice as high as that for original biochar. MBC had the largest specific surface area with many particles distributed on the surface before and after adsorption, which were confirmed to be MnOx by XPS analysis. The complexation with MnOx was the main mechanism. Besides, O-containing groups complexation, precipitation, cation-π intraction, and ion exchange also participated in the adsorption. However, WBC, HBC and PBC did not achieve ideal removal effects, and their stability was inferior. This could be attributed to the weakening of ion exchange and precipitation. This study not only demonstrates the potential of MBC, but also provides insight into strategies for the utilization of waste resources.
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Affiliation(s)
- Kaiyue Yin
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
| | - Juyuan Wang
- College of Agronomy, Liaocheng University, Liaocheng 252000, China.
| | - Sheng Zhai
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China.
| | - Xin Xu
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
| | - Tingting Li
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
| | - Shuchen Sun
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
| | - Shuai Xu
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
| | - Xuexue Zhang
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
| | | | - Yingshu Hao
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
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15
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Eltaweil AS, Abdelfatah AM, Hosny M, Fawzy M. Novel Biogenic Synthesis of a Ag@Biochar Nanocomposite as an Antimicrobial Agent and Photocatalyst for Methylene Blue Degradation. ACS OMEGA 2022; 7:8046-8059. [PMID: 35284719 PMCID: PMC8908515 DOI: 10.1021/acsomega.1c07209] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/10/2022] [Indexed: 05/08/2023]
Abstract
The conventional synthesis of nanomaterials employing physical and chemical methods usually requires high cost and toxic chemicals. Thus, a facile, ecofriendly, cost-effective, novel, and sustainable route for the synthesis of a silver-loaded biochar nanocomposite (Ag@biochar) using Chenopodium ambrosioides leaf extract and biomass is reported for the first time in this study to advocate many of the principles of green chemistry such as safer solvents and auxiliaries. UV spectroscopic analysis at 420 nm indicated the formation of silver nanoparticles (AgNPs). The band gap energy of Ag@biochar was 1.9 eV, confirming its potential use as a photocatalyst. Ag@biochar was found to be photoluminescent at 425 nm. AgNPs on the surface of biochar were predominantly spherical with a size range of 25-35 nm and a surface area of 47.61 m2/g. A zeta potential of -5.87 mV designated the stability of Ag@biochar. Testing the photocatalytic potential of Ag@biochar to remove methylene blue from wastewater demonstrated its high removal efficiency that reached 88.4% due to its high efficiency of electron transfer confirmed via electrochemical impedance spectroscopy analysis and retained 70.65% after six cycles of reuse. Ag@biochar was shown to be a powerful broad-spectrum antimicrobial agent as it completely prevented the growth of Escherichia coli and also inhibited the growth of Pseudomonas aeruginosa, Klebsiella pneumoniae, Bacillus subtilis, and Candida albicans with the inhibition zones of 19, 18, 22, and 16 mm, respectively.
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Affiliation(s)
- Abdelazeem S. Eltaweil
- Department
of Chemistry, Faculty of Science, Alexandria
University, Alexandria 21321, Egypt
| | - Ahmed M. Abdelfatah
- Green
Technology Group, Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
| | - Mohamed Hosny
- Green
Technology Group, Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
- ,
| | - Manal Fawzy
- Green
Technology Group, Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
- National
Egyptian Biotechnology Experts Network, National Egyptian Academy for Scientific Research and Technology, Cairo 33516, Egypt
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Shahnaz T, Bedadeep D, Narayanasamy S. Investigation of the adsorptive removal of methylene blue using modified nanocellulose. Int J Biol Macromol 2021; 200:162-171. [PMID: 34979188 DOI: 10.1016/j.ijbiomac.2021.12.081] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 11/18/2022]
Abstract
In this study, Ethylenediamine tetraacetic acid (EDTA) embedded nanocellulose (NCED) has been used to study the adsorptive removal of methylene blue (MB) from simulated wastewater. The morphological characterizations have been checked with FESEM, FETEM, AFM, and BET pore analysis, while the fingerprinting of the material has been analyzed with the help of FTIR, Raman spectroscopy, EDS, XRD and TGA. For the experimental designing involving four parameters that affect the removal efficiency of MB, the layout has been prepared with the help of Central Composite Design (CCD). For the correlation among the parameters and their subsequent impact on the removal percentage, response surface methodology (RSM) has been employed. Maximum removal percentage of MB using NCED was found out to be 91.14%. The adsorption process was found to be good fit with the Langmuir isotherm and Elovich kinetics model. From the thermodynamics study, the spontaneity and the endothermic nature of the process was confirmed. With the help of all the obtained data and the associated removal efficiency, NCED could play a role of cost-effective and eco-friendly alternative to the expensive methods of toxic dye removal from wastewater.
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Affiliation(s)
- Tasrin Shahnaz
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India, 781039
| | - Das Bedadeep
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India, 781039
| | - Selvaraju Narayanasamy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India, 781039.
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Peighambardoust SJ, Foroutan R, Peighambardoust SH, Khatooni H, Ramavandi B. Decoration of Citrus limon wood carbon with Fe 3O 4 to enhanced Cd 2+ removal: A reclaimable and magnetic nanocomposite. CHEMOSPHERE 2021; 282:131088. [PMID: 34118621 DOI: 10.1016/j.chemosphere.2021.131088] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/25/2021] [Accepted: 05/30/2021] [Indexed: 05/19/2023]
Abstract
In the present study, the activated carbon of lemon (ACL) was generated from Citrus limon wood waste and composited with Fe3O4 nanoparticles. The ACL/Fe3O4 magnetic composite was effectively used to eliminate Cd2+ from an aqueous solution. The active surface area values for ACL and ACL/Fe3O4 magnetic composite were 25.99 m2/g and 38.70 m2/g, respectively indicating the effectiveness of Fe3O4 nanoparticles in improving ACL active surface area. The response surface methodology with central composite design (RSM-CCD) was used to determine optimal values of pH, ACL/Fe3O4 dose, contact time, and Cd2+ concentration on the decontamination efficiency. The Langmuir and Freundlich isotherm models had more potential to describe the adsorption process using ACL and ACL/Fe3O4, respectively. The Langmuir-based adsorption capacity was obtained as 28.2 mg/g (ACL) and 39.6 mg/g (ACL/Fe3O4). A pseudo-second order (PSO) model was successfully applied to evaluate the adsorption process kinetic behavior. A higher value of α parameter for ACL/Fe3O4 (5.7 mg/g.min) than that of ACL (3.5 mg/g.min) indicated that the magnetic composite had a greater tendency to absorb Cd2+. In addition, the Weber-Morris model showed that various mechanisms such as intraparticle diffusion and boundary layer effects may have a role in the adsorption process. The study of ad(de)sorption behavior showed that the adsorbents have a good ability to adsorb Cd2+ and no significant change in their performance has been made up to 4 times of reuse. Our results showed that ACL modification using Fe3O4 nanoparticles improved the adsorption efficiency of ACL to remove Cd2+ from the aqueous solutions.
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Affiliation(s)
| | - Rauf Foroutan
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 5166616471, Iran.
| | | | - Hamzeh Khatooni
- Department of Food Science, College of Agriculture, University of Tabriz, Tabriz, 5166616471, Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
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