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Kumar V, Sharma N, Panneerselvam B, Dasarahally Huligowda LK, Umesh M, Gupta M, Muzammil K, Zahrani Y, Malmutheibi M. Lignocellulosic biomass for biochar production: A green initiative on biowaste conversion for pharmaceutical and other emerging pollutant removal. CHEMOSPHERE 2024; 360:142312. [PMID: 38761824 DOI: 10.1016/j.chemosphere.2024.142312] [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: 08/15/2023] [Revised: 03/25/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024]
Abstract
Lignocellulosic waste generation and their improper disposal has accelerated the problems associated with increased greenhouse gas emissions and associated environmental pollution. Constructive ways to manage and mitigate the pollution associated with lignocellulosic waste has propelled the research on biochar production using lignocellulose-based substrates. The sustainability of various biochar production technologies in employing lignocellulosic biomass as feedstock for biochar production not only aids in the lignocellulosic biomass valorization but also helps in carbon neutralization and carbon utilization. Functionalization of biochar through various physicochemical methods helps in improving their functional properties majorly by reducing the size of the biochar particles to nanoscale and modifying their surface properties. The usage of engineered biochar as nano adsorbents for environmental applications like dye absorption, removal of organic pollutants and endocrine disrupting compounds from wastewater has been the thrust areas of research in the past few decades. This review presents a comprehensive outlook on the up-to-date research findings related to the production and engineering of biochar from lignocellulosic biomass and their applications in environmental remediation especially with respect to wastewater treatment. Further a detailed discussion on various biochar activation methods and the future scope of biochar research is presented in this review work.
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Affiliation(s)
- Vinay Kumar
- Biomaterials and Tissue Engineering (BITE) Laboratory, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Thandalam, 602105, India.
| | - Neha Sharma
- Department of Biochemistry, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Thandalam, 602105, India
| | - Balamurugan Panneerselvam
- Center of Excellence in Interdisciplinary Research for Sustainable Development, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Community Medicine, Saveetha Medical College, SIMATS, Chennai, 602105, India
| | | | - Mridul Umesh
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India
| | - Manish Gupta
- Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh, 174103, India
| | - Khursheed Muzammil
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, 62561, Saudi Arabia
| | - Yousef Zahrani
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, 62561, Saudi Arabia
| | - Musa Malmutheibi
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, 62561, Saudi Arabia
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Zhu H, An Q, Syafika Mohd Nasir A, Babin A, Lucero Saucedo S, Vallenas A, Li L, Baldwin SA, Lau A, Bi X. Emerging applications of biochar: A review on techno-environmental-economic aspects. BIORESOURCE TECHNOLOGY 2023; 388:129745. [PMID: 37690489 DOI: 10.1016/j.biortech.2023.129745] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/15/2023] [Accepted: 09/06/2023] [Indexed: 09/12/2023]
Abstract
Biomass fast pyrolysis produces bio-oil and biochar achieving circular economy. This review explored the emerging applications of biochar. Biochar possesses the unique properties for removing emerging contaminants and for mine remediation, owing to its negative charge surface, high specific surface area, large pore size distribution and surface functional groups. Additionally, biochar could adsorb impurities such as CO2, moisture, and H2S to upgrade the biogas. Customizing pyrolysis treatments, optimizing the feedstock and pyrolysis operating conditions enhance biochar production and improve its surface properties for the emerging applications. Life cycle assessment and techno-economic assessment indicated the benefits of replacing conventional activated carbon with biochar.
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Affiliation(s)
- Hui Zhu
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Qing An
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Thermal and Environmental Engineering Institute, Mechanical Engineering College, Tongji University, Shanghai 201800, China
| | - Amirah Syafika Mohd Nasir
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Alexandre Babin
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Sofia Lucero Saucedo
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Amzy Vallenas
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Loretta Li
- Department of Civil Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Susan Anne Baldwin
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Anthony Lau
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Xiaotao Bi
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.
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Chen T, Wen X, Li X, He J, Yan B, Fang Z, Zhao L, Liu Z, Han L. Single/co-adsorption and mechanism of methylene blue and lead by β-cyclodextrin modified magnetic alginate/biochar. BIORESOURCE TECHNOLOGY 2023; 381:129130. [PMID: 37149268 DOI: 10.1016/j.biortech.2023.129130] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
Due to the high biological toxicity, the concurrent elimination of lead (Pb (II)) and methylene blue (MB) has become a challenging problem. Therefore, a newly β-cyclodextrin (β-CD) modified magnetic alginate/biochar (β-CD@MBCP) material was developed. Comprehensive characterizations proved the successful coating of β-CD onto MBCP surface by microwave-aided fabrication. The β-CD@MBCP achieved high-efficiency uptake for contaminants under a wide pH scope. In the dual system, Pb (II) elimination was facilitated with the presence of MB, due to the active sites provided by MB. In the presence of Pb (II), MB uptake was inhibited due to the electrostatic repulsion between positively charged MB and Pb (II). Electrostatic attraction and complexation contributed to capturing Pb (II), while π-π interactions, host-guest effect, and H-bonding were important in MB elimination. After four cycles, β-CD@MBCP maintained comparatively good renewability. Findings demonstrated that β-CD@MBCP could be an effective remediation material for Pb (II)/MB adsorption from aqueous environments.
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Affiliation(s)
- Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Xiaocui Wen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Xueying Li
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
| | - Jiehong He
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Bo Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Zhanqiang Fang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Lingzhi Zhao
- GuangDong Engineering Technology Research Center of Low Carbon and Advanced Energy Materials, Guangdong Provincial Key Laboratory of Chip and Integration Technology, School of Semiconductor Science and Technology, South China Normal University, Foshan 528225, China
| | - Zhenyuan Liu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Lanfang Han
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China.
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Wen J, Wu Y, Zhu X, Lan M, Li X. Influence mechanism of plant litter mediated reduction of iron and sulfur on migration of potentially toxic elements from mercury-thallium mine waste. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 332:121742. [PMID: 37121301 DOI: 10.1016/j.envpol.2023.121742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/09/2023] [Accepted: 04/28/2023] [Indexed: 06/17/2023]
Abstract
The decomposition of plant litter in soil changes soil nutrient content and plays an important role in regulating soil pH and availability of potentially toxic elements (PTEs). However, there remains limited studies on the mechanism under which litter influences the transport of PTEs in the process of ecological restoration. This study examined the effect of plant litter decomposition mediated reduction of iron and sulfur components on migration of PTEs from mercury-thallium mine waste. The results showed that the four kinds of litter alleviated the acidity of the waste, especially the Bpa and Tre litter. The nitro and nitroso groups produced by the decomposition of the litter were adsorbed onto the waste, thereby providing an electron transfer medium for iron reducing microorganisms, such as Geobacter. This promoted the reduction and release of Fe3+ to Fe2+ and reduced the electronegativity (El) value of waste. The reduced El promoted the adsorption of metal cations such as Hg and Tl to maintain electrical neutrality. However, it was not conducive to the adsorption of oxygen containing anions of As and Sb. An increase in litter resulted in an increase in reductivity of mercury-thallium mine waste. This maintained the reduction of Fe3+ to Fe2+ and changed or destroyed the structure of silicate minerals. PTEs, such as Tl, Hg, As, and Sb, were released, resulting in reductions in their residual fraction. However, the strong reduction conditions, especially the decomposition of Bpa, caused part of the released Hg(II) combining with S2- produced by the reduction of SO42- to form insoluble HgS, thereby reducing its migration. The findings could provide a theoretical basis to guide the situ-control and ecological restoration of PTEs in waste slag site.
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Affiliation(s)
- Jichang Wen
- Institute of New Rural Development, Guizhou University, Guiyang, 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang, 550025, China
| | - Yonggui Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang, 550025, China.
| | - Xinwei Zhu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Meiyan Lan
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Xinying Li
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
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Mild routine to prepare Fe-Mn bimetallic nano-cluster (Fe-Mn NCs) and its magnetic starch-based composite adsorbent (Fe-Mn@SCAs) for wide pH range adsorption for Hg(Ⅱ) sewage. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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Castejón-Del Pino R, Cayuela ML, Sánchez-García M, Sánchez-Monedero MA. Nitrogen availability in biochar-based fertilizers depending on activation treatment and nitrogen source. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 158:76-83. [PMID: 36641823 DOI: 10.1016/j.wasman.2023.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/15/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Different activation and N-doping treatments were used to produce biochar-based fertilizers (BBFs) with increased N concentration and slow N release. Pristine biochars were produced by pyrolysis of olive tree pruning feedstock at low and high temperatures (400 and 800 °C). These biochars were activated either by ultrasonication, or oxidation with hydrogen peroxide (H2O2) or nitric acid (HNO3) to increase their N retention potential. Subsequently biochars were enriched with N with either urea or ammonium sulfate. The activation of low-temperature biochars with HNO3 was the most effective treatment leading to new surface carboxylic groups that facilitated the later enrichment with N. When treated with urea, BBFs reached 7.0 N%, whereas the H2O2 activation only allowed an increase up to 2.0 N%. The use of urea as the external N source was the most efficient for incorporating N. Urea treated biochars had a water-soluble fraction that represented up to 14.5 % of the total N. The hydrolyzable N fraction, composed by amides and simple N heterocycles originated by the N-doping treatments, and nitro groups generated from HNO3 activation, represented up to 60 % of the total N. This study relates the N chemical forms in the new BBFs to potential N availability in soil. The presence of water-soluble, hydrolyzable and non-hydrolyzable N implied that these BBFs may supply N that would be progressively available for plants, acting as slow-release fertilizers.
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Affiliation(s)
- Raúl Castejón-Del Pino
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain.
| | - María L Cayuela
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - María Sánchez-García
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - Miguel A Sánchez-Monedero
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
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7
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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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8
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Guy Laurent Zanli BL, Tang W, Chen J. N-doped and activated porous biochar derived from cocoa shell for removing norfloxacin from aqueous solution: Performance assessment and mechanism insight. ENVIRONMENTAL RESEARCH 2022; 214:113951. [PMID: 35981615 DOI: 10.1016/j.envres.2022.113951] [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: 04/14/2022] [Revised: 07/04/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution has worsened as a result of antibiotic overuse. Nitrogen doping of biochar increases its ability to adsorb antibiotics and has been widely applied as an adsorbent. In this study, we synthesized nitrogen-doped biochar (N-A) from cocoa shell wastes calcined with urea and sodium bicarbonate (NaHCO3) as nitrogen sources and green activators, respectively. An analysis of the biochar morphology, structure, specific surface area, and functional groups provided an understanding of its properties. As indicated by increased surface area, micropores, and surface functional groups, biochar was enhanced in its performance for norfloxacin adsorption when activated using NaHCO3 and nitrogen doped. Adsorption experiments revealed that N-A biochar at 700 and 400 °C had a high adsorption capacity for NOR of 134 mg/g (N-A-CSB700) and 112.31 mg/g (N-A-CSB400) when compared to pristine biochar at 59.27 mg/g (CSB700) and 56.34 mg/g (CSB400), indicating that N-A doped modification on biochar greatly improved adsorption capacity. The Langmuir model demonstrated better NOR adsorption isotherms. The pseudo-second order and Elovich models closely followed the adsorption kinetics. Further investigations were conducted to determine how environmental factors influence biochar interaction with NOR. The results indicated a stable NOR removal efficiency was kept at a wide pH range, whereas the ionic strength inhibited the NOR adsorption process. The investigation into the sorption mechanism revealed that pore filling, H-bonding, π-π EDA interactions, ion exchange, and electrostatic attraction may all be implicated in the NOR adsorption process. Specifically, pore filling played the dominant role for N-A-CSB700, while N-A-CSB400 sorption occurred mainly via H-bonding. Since N-A-CSB700 doped biochar combines high adsorption capacity with a low inhibition effect of environmental factors (Na+/Ca2+), it has a high potential for future practical applications as an environmentally sustainable alternative. It uses low-cost solid waste to produce an adsorbent to cope with emerging contaminants such as antibiotics.
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Affiliation(s)
- Bi Lepohi Guy Laurent Zanli
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, PR China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, 100083, PR China
| | - Wei Tang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, PR China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, 100083, PR China
| | - Jiawei Chen
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, PR China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, 100083, PR China.
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Wang L, Li D, Li X, Liang H, Yue W, Wang L, Pan Y, Huang Y. Recirculation of activated sludge for coagulant synthesis under hydrothermal conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:66519-66535. [PMID: 35503154 DOI: 10.1007/s11356-022-20490-w] [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: 02/28/2022] [Accepted: 04/24/2022] [Indexed: 06/14/2023]
Abstract
A hypothesis was proposed that the activated sludge was converted into hydrochar full of phenolic hydroxyl and then was made into coagulant by graft copolymerization. The results show that under the addition of HCl, the content of phenolic hydroxyl on the surface of hydrochar (SBC) under hydrothermal conditions increased sharply, up to 1.586 mmol/g, showing that HCl dosage of 0.10 g/g dry sludge and holding time of 4 h was recommended. Under graft copolymerization with the addition of DMC, the coagulant was synthesized. Based on the analysis by FTIR, XPS, zeta potential, etc., the possible synthesis route of coagulant from SBC was that phenolic hydroxyl on SBC was activated by the initiator and then the polymerization between SBC and DMC was triggered. The optimal grafting conditions are gotten. It was named as SBCHCl0.10 g, 4 h-g-DMC0.7. The removal by SBCHCl0.10 g, 4 h-g-DMC0.7 on COD and turbidity in domestic wastewater is up to 69% and 93%, respectively. The component of COD indicated that almost all particulate COD and most of colloidal COD are removed. On the contrary, the removal on dissolved COD can be neglected. Most of NH3-N and P is kept in the wastewater. This is in favor of subsequent reuse and biological treatment.
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Affiliation(s)
- Lu Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
| | - Dapeng Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China.
| | - Xueying Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
| | - Hui Liang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
| | - Wei Yue
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
| | - Lingzhi Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
| | - Yang Pan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
| | - Yong Huang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No.1 Kerui Road, Hi-tech Development District, No.99 Xuefu Road, Suzhou, Jiangsu, China
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Lin H, Duan Y, Zhao B, Feng Q, Li M, Wei J, Zhu Y, Li M. Efficient Hg(II) removal to ppb level from water in wider pH based on poly-cyanoguanidine/graphene oxide: Preparation, behaviors, and mechanisms. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Stabilization/Solidification of Heavy Metals and PHe Contaminated Soil with β-Cyclodextrin Modified Biochar (β-CD-BC) and Portland Cement. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031060. [PMID: 35162084 PMCID: PMC8834326 DOI: 10.3390/ijerph19031060] [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: 11/19/2021] [Revised: 01/06/2022] [Accepted: 01/09/2022] [Indexed: 02/01/2023]
Abstract
Conventional stabilization/solidification materials have defects in the simultaneous treatment of heavy metals (HMs) and phenanthrene (PHe). In order to solve this problem, a new functional material β-cyclodextrin modified biochar (β-CD-BC) was prepared by integrating the properties of biochar (BC) and the hydrophilic and hydrophobic properties of the β-CD surface and combined with Portland cement (PC) to cure and stabilize HMs and PHe. The effect of key parameters on the treatment effect was discussed by response surface method. The results showed that the minimum leaching concentration if HMs was 16.81 mg·L-1, and the leaching concentration of PHe can be as low as 0.059 μg/kg under the conditions of β-CD-BC and Portland cement ratio of 9.75% and 11.4%, curing for 22.85 d. The weak acid soluble state reduced from 9~13% to 0.5~6%, the residual state was increased from 37~61% to 77~87%. The unconfined compressive strength of sample is more than 50 kPa. The results of this study can provide a new technical scheme for long-term curing and stabilization of HMs and PHe.
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12
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Tang W, Zanli BLGL, Chen J. O/N/P-doped biochar induced to enhance adsorption of sulfonamide with coexisting Cu 2+/ Cr (VI) by air pre-oxidation. BIORESOURCE TECHNOLOGY 2021; 341:125794. [PMID: 34425464 DOI: 10.1016/j.biortech.2021.125794] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
The aim of this work to study the effectiveness of newly synthesized O/N/P-doped biochar for the removal of antibiotics with coexisting heavy metals. This study developed a low-dose additive agent with air pre-oxidation (APO) to obtain O/N/P-doped biochar (ONPBC) at 650/350 °C pyrolysis temperature with adsorption amount of 76.99 mg·g-1 (ONPBC650) and 62.33 mg·g-1 (ONPBC350) for sulfapyridine (SPY), comparing to pristine biochar 9.25 mg·g-1 (BC650) and 11.60 mg·g-1 (BC350), indicating the adsorption capacity of biochar has been greatly improved after modification. The main sorption mechanisms were elucidated for ONPBC650 (surface physical sorption) and ONPBC350 (H-bonding). The coexisting Cu2+/Cr (VI) showed different inhibition effects on the adsorption of SPY by ONPBC650/350. Considering a trade-off between high adsorption capacity and low inhibition effect of coexisting heavy metals, economic low-temperature O/N/P-doped biochar such as ONPBC350 could be a preferred adsorbent for the removal of sulfonamide or similar organic pollutants from contaminated water.
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Affiliation(s)
- Wei Tang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, PR China; School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, PR China
| | - Bi Lepohi Guy Laurent Zanli
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, PR China; School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, PR China
| | - Jiawei Chen
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, PR China; School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, PR China.
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13
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Zhang C, Peng Z, Guo Y, Zhang Y, Zhao W, Yang J, Zhang S, Zhang W. Facile synthesis of Melamine-Modified porous organic polymer for mercury (II) removal. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119097] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Wen J, Wu Y, Li X, Lu Q, Luo Y, Duan Z, Li C. Migration characteristics of heavy metals in the weathering process of exposed argillaceous sandstone in a mercury-thallium mining area. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111751. [PMID: 33396076 DOI: 10.1016/j.ecoenv.2020.111751] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 11/23/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
Lanmuchang mercury-thallium mine, a typical polymetallic mine is located in southwestern Guizhou, China, is the most serious and typical area resulted from multi-metal contamination (Tl, Hg, As, and Sb). After the mercury-thallium mining, a large area of surrounding rocks such as argillaceous sandstone with high contents of Tl, Hg, As, and Sb is exposed to air. Weathering caused the argillaceous sandstone to form different weathering layers, including the grey-black external layer, the brown-yellow middle layer and the gray-white inner layer, and the external layer was enriched with higher heavy metals. However, the reason of heavy metal migration and transformation in argillaceous sandstone caused by weathering is unclear. The objective of this paper was to investigate the migration, transformation and release characteristics of Tl, Hg, As, and Sb in argillaceous sandstone during the weathering. The results indicated that weathering not only promoted an acidic oxidation environment in argillaceous sandstone, but also increased its specific surface area, pore volume and hydrophilicity, which are beneficial to the permeability of oxygen and etching liquids during the process of weathering and leaching. Meanwhile, weathering led to the transformation or decomposition of hydrophilic groups, such as -OH and -C˭O in the grey-black external layer of argillaceous sandstone, resulting in the further release of heavy metals bound to these groups. The concentration of Tl, Hg, As, and Sb in the leaching solution of argillaceous sandstone represented a positive correlation with that of Fe, Ca, Mg at different levels, indicating that Tl, Hg, As, and Sb were released with the dissolution of Fe, Ca and Mg during weathering and leaching. In summary, these results indicated that weathering caused the dissolution and migration of heavy metals in the argillaceous sandstone. Tl, Hg, As, and Sb migrated from the grey-white inner layer to the grey-black external layer and partially adsorbed by free alumina (Ald), jarosite and Ca-bearing minerals, showing enrichment phenomena, partially released into the environment, causing environmental pollution.
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Affiliation(s)
- Jichang Wen
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Yonggui Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystem Observation and Research Station, Ministry of Education, Guizhou University, Guiyang 550025, China; Institute of Applied Ecology, Guizhou University, Guiyang 550025, Guizhou, China.
| | - Xinlong Li
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Qian Lu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Youfa Luo
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Karst Environment and Geohazard, Ministry of Land and Resources, Guizhou University, Guiyang 550025, China
| | - Zhibin Duan
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Chunmei Li
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
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15
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Surface Functionalization of Biochar from Oil Palm Empty Fruit Bunch through Hydrothermal Process. Processes (Basel) 2021. [DOI: 10.3390/pr9010149] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The use of biochar as an adsorbent for wastewater treatment purposes has been hindered due to its lower surface area compared to activated carbon. Current research on increasing surface functional groups on biochar surfaces to improve its adsorption performance suggests using high chemical concentration and long period of modification. This study solves these problems by focusing on improving surface functionalities of biochar via the hydrothermal functionalization process. Oil palm empty fruit bunch biochar was functionalized using autoclave with nitric acid as the functionalization agent. Functionalized biochar properties such as Brunauer–Emmett–Teller (BET) surface area and surface functional groups were analyzed and compared with untreated biochar. Fourier Transform Infrared (FTIR) spectroscopic analysis shows a significant increase in absorption by oxygen functional groups and is corroborated with energy dispersive X-ray (EDX) analysis. The process does not result in any major change in surface morphology and reduction in surface area value. Methylene blue (MB) adsorption test shows 7 times increase in adsorption performance. These results show that the simple hydrothermal functionalization process successfully functionalizes the biochar surface and improves its performance without affecting its surface area at lower concentration, and shorter time compared to previous studies. This result, with future large-scale experimentation using real-life equipment in palm oil mills, would provide a better technology that can be implemented in the industry.
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16
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Qu J, Dong M, Wei S, Meng Q, Hu L, Hu Q, Wang L, Han W, Zhang Y. Microwave-assisted one pot synthesis of β-cyclodextrin modified biochar for concurrent removal of Pb(II) and bisphenol a in water. Carbohydr Polym 2020; 250:117003. [PMID: 33049907 DOI: 10.1016/j.carbpol.2020.117003] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/24/2020] [Accepted: 08/24/2020] [Indexed: 12/14/2022]
Abstract
Herein, β-cyclodextrin (β-CD) functionalized rice husk-derived biochar (BC) was conveniently and fast synthesized via microwave (MW)-assisted one pot process, and employed for simultaneous elimination of bisphenol A (BPA) and plumbum (Pb). Profiting by microwave irradiation, the surface modification was implemented in 15 min and the prepared BCMW-β-CD presented an excellent adsorption performance with a heterogeneous adsorption capacity of 209.20 mg/g for BPA and a theoretical monolayer uptake of 240.13 mg/g for Pb(II) in the mono-component system. Furthermore, the BCMW-β-CD could simultaneously achieve efficient cleanup of BPA and Pb(II) through avoiding the competitive behaviors between them, which were due to the different adsorption mechanisms for Pb(II) (i.e. electrostatic attraction and complexation) and BPA (i.e. host-guest supramolecular and π-π interactions). Moreover, the adsorbed BPA and Pb(II) could be sequentially desorbed with mild decrease in the adsorption performance of BCMW-β-CD even after five cycles in the Pb(II)-BPA multi-component system.
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Affiliation(s)
- Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Min Dong
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Shuqi Wei
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Qingjuan Meng
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Limin Hu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Qi Hu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lei Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Wei Han
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
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17
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Pramanik A, Biswas S, Tiwary CS, Kumbhakar P, Sarkar R, Kumbhakar P. Forster resonance energy transfer assisted white light generation and luminescence tuning in a colloidal graphene quantum dot-dye system. J Colloid Interface Sci 2020; 565:326-336. [DOI: 10.1016/j.jcis.2020.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/28/2019] [Accepted: 01/08/2020] [Indexed: 01/04/2023]
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18
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Adsorption Processing for the Removal of Toxic Hg(II) from Liquid Effluents: Advances in the 2019 Year. METALS 2020. [DOI: 10.3390/met10030412] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mercury is a toxic metal, thus, it is an element which has more and more restrictions in its uses, but despite the above, the removal of this metal, from whatever the form in which it is encountered (zero valent metal, inorganic, or organic compounds), and from different sources, is of a widespread interest. In the case of Hg(II), or Hg2+, the investigations about the treatment of Hg(II)-bearing liquid effluents (real or in most cases synthetic solutions) appear not to end, and from the various separation technologies, adsorption is the most popular among researchers. In this topic, and in the 2019 year, more than 100 publications had been devoted to this field: Hg(II)-removal-adsorption. This work examined all of them.
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Tong M, He L, Rong H, Li M, Kim H. Transport behaviors of plastic particles in saturated quartz sand without and with biochar/Fe 3O 4-biochar amendment. WATER RESEARCH 2020; 169:115284. [PMID: 31739235 DOI: 10.1016/j.watres.2019.115284] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/22/2019] [Accepted: 11/04/2019] [Indexed: 05/22/2023]
Abstract
As an environmentally friendly material, biochar has been widely used to remediate soil/water contaminants such as heavy metals and organic pollutants. The addition of biochar or modified biochar to porous media might affect the retention of plastic particles and thus influence their fate in natural environment. In this study, both biochar and magnetic biochar (Fe3O4-biochar) were synthesized via a facile precipitation method at room temperature. To determine the significance of biochar and Fe3O4-biochar amendment on the transport and deposition behaviors of plastic particles, the breakthrough curves and retained profiles of three different sized plastic particles (0.02 μm nano-plastic particles, and 0.2 μm and 2 μm micro-plastic particles) in quartz sand were compared with those obtained in quartz sand either with biochar or Fe3O4-biochar amendment in both 5 mM and 25 mM NaCl solutions. The results show that for all three different sized plastic particles under both examined solution conditions, the addition of biochar and Fe3O4-biochar in quartz sand decreases the transport and increases the retention of plastic particles in porous media. Fe3O4-biochar more effectively inhibits the transport of plastic particles than biochar. We found that the addition of biochar/Fe3O4-biochar could change the suspension property and increase the adsorption capacity of porous media (due to the increase of porous media surface roughness and negatively decrease the zeta potentials of porous media), contributing to the enhanced deposition of plastic particles. Moreover, we found that negligible amount of biochar and Fe3O4-biochar (<1%) were released from the columns following the plastic particle transport when the columns were eluted with very low ionic strength solution at high flow rate (to simulate a sudden rainstorm). Similarly, small amount of plastic particles were detached from the porous media under this extreme condition (16.5% for quartz sand, 14.6% for quartz sand with biochar amendment, and 7.5% for quartz sand with Fe3O4-biochar amendment). We found that over 74% of the Fe3O4-biochar can be recovered from the porous media after the retention of plastic particles by using a magnet and 87% plastic particles could be desorbed from Fe3O4-biochar by dispersing the Fe3O4-biochar into 10 mM NaOH solution. In addition, we found that the amendment of unsaturated porous media with biochar/Fe3O4-biochar also decreased the transport of plastic particles. When biochar/Fe3O4-biochar were added into porous media as one layer of permeable barrier near to column inlet, the decreased transport of plastic particles could be also obtained. The results of this study indicate that magnetic biochar can be potentially applied to immobilize plastic particles in terrestrial ecosystems such as in soil or groundwater.
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Affiliation(s)
- Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China.
| | - Lei He
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Haifeng Rong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Meng Li
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Hyunjung Kim
- Department of Mineral Resources and Energy Engineering, Chonbuk National University, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 561-756, Republic of Korea
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20
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Xu PL, Wei T, Yue HY, Wen YC, Wei Y, Guo TJ, Li SJ, Li W, Wang XQ. Effect of different nitric acid concentrations on manganese/activated carbon-modified catalysts for the catalytic ozonation of toluene. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01100b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, the effect of nitric acid modification on activated carbon (AC) and on properties of Mn/AC ozone catalysts was studied.
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Affiliation(s)
- Pei-lun Xu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Tong Wei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Huan-yu Yue
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Yu-ce Wen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Yang Wei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Tian-jiao Guo
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Su-jing Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Wei Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University (Yuquan Campus)
- Hangzhou
- China
| | - Xiang-qian Wang
- Technology Innovation and Training Center
- Polytechnic Institute
- Zhejiang University
- Hangzhou
- China
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21
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Integrating surface functionalization and redox additives to improve surface reactivity for high performance supercapacitors. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134810] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Efficient adsorption of uranium (VI) from aqueous solution by a novel modified steel slag adsorbent. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06848-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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