1
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Bian P, Shao Q. Efficient adsorption of hexavalent chromium in water by torrefaction biochar from lignin-rich kiwifruit branches: The combination of experiment, 2D-COS and DFT calculation. Int J Biol Macromol 2024; 273:133116. [PMID: 38889832 DOI: 10.1016/j.ijbiomac.2024.133116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 05/13/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024]
Abstract
A biochar (KBC) enriched with O functional groups was prepared by torrefaction using lignin-rich kiwifruit branches (KBM) as a raw material, which was characterized, and then KBC was used to adsorb hexavalent chromium (Cr6+) from water. The results showed that KBC contained more functional groups compared to KBM. The maximum adsorption of Cr6+ by KBC could reach 143.64 mg·g-1 and also had better adsorption performance than other adsorbents reported in some other reports. Cr6+ absorption by KBC was mainly a mechanism of electrostatic interaction and adsorption-reduction coupling. FTIR and XPS revealed that -OH, -COOH, CO and CC on KBC participated in Cr6+ adsorption and new groups (C=O) were generated during the process of adsorption, which implied that a redox reaction occurred. 2D-COS and DFT calculations showed that the order of functional groups on KBC interacting with Cr6+ was -OCH3 > -COOH > -OH > phenolic hydroxyl, and the binding tightness of the different functional groups to Cr6+ was -OCH3 (the shortest displacement of both groups after the adsorption) > -COOH > -OH > phenolic hydroxyl. KBC has good regeneration performance, and it is a good adsorbent for Cr6+.
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Affiliation(s)
- Pengyang Bian
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, PR China; College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Qinqin Shao
- School of Physics and Electronic Engineering, Zhengzhou Normal University, Zhengzhou 450044, PR China.
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2
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Zhou L, Zhang G, Zeng Y, Bao X, Liu B, Cheng L. Endogenous iron-enriched biochar derived from steel mill wastewater sludge for tetracycline removal: Heavy metals stabilization, adsorption performance and mechanism. CHEMOSPHERE 2024; 359:142263. [PMID: 38719127 DOI: 10.1016/j.chemosphere.2024.142263] [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: 02/03/2024] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024]
Abstract
Steel mill wastewater sludge, as an iron-enriched solid waste, was expected to be converted into iron-enriched biochar with acceptable environmental risk by pyrolysis. The purpose of our study was to evaluate the chemical speciation transformation of heavy metals in biochar under various pyrolysis temperatures and its reutilization for tetracycline (TC) removal. The experimental data indicated that pyrolysis temperature was a key factor affecting the heavy metals speciation and bioavailability in biochar, and biochar with pyrolysis temperature at 450 °C was the most feasible for reutilization without potential risk. The endogenous iron-enriched biochar (FSB450) showed highly efficient adsorption towards TC, and its maximum adsorption capacity could reach 240.38 mg g-1, which should be attributed to its excellent mesoporous structure, abundant functional groups and endogenous iron cycling. The endogenous iron was converted to a stable iron oxide crystalline phase (Fe3O4 and MgFe2O4) by pyrolysis, which underwent a valence transition to form a coordination complex with TC by electron shuttling in the FSB450 matrix. The study provides a win-win approach for resource utilization of steel wastewater sludge and treatment of antibiotic contamination in wastewater.
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Affiliation(s)
- Lu Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Guanhao Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Yulin Zeng
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Xunli Bao
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Bei Liu
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, PR China.
| | - Liang Cheng
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, PR China; Clinical College of Changsha Medical University, Changsha 410219, PR China.
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3
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Gonsalves OS, Nemade PR. Ultrafast adsorption of hexavalent chromium from aqueous effluents using covalent triazine frameworks. CHEMOSPHERE 2024; 351:141246. [PMID: 38253090 DOI: 10.1016/j.chemosphere.2024.141246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/21/2023] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Abstract
We have synthesized low-cost high performance covalent triazine framework (CTF) through Schiff base reaction of melamine and terephthalaldehyde with different proportions of the reactants. The synthesized adsorbents showed excellent capacity for adsorption of Cr (VI) at acidic pH while almost negligible adsorption at higher pH. The adsorbent displays excellent reusability, with a little decrease in adsorption capacity with the increasing number of cycles. Moreover, Cr (VI) the adsorption is unaffected by the presence of 50-500 times higher concentration of alkali metal and halide ions in solution, while sulphate ions demonstrate shielding behavior decreasing the adsorption capacity. Mechanistic studies indicate electrostatic attractions, ion exchange and reduction being responsible for the adsorption mediated by abundant nitrogen sites that also imbibes the adsorbent with high capacity. The adsorbent was also utilized to recover chromium from an industrial electroplating effluent, which demonstrates applicability of material for practical applications.
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Affiliation(s)
- Olviya S Gonsalves
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, 400 019, India
| | - Parag R Nemade
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, 400 019, India; Institute of Chemical Technology, Marathwada Campus, Jalna, 431 203, India.
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4
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Hu S, Liu C, Bu H, Chen M, Fei YH. Efficient reduction and adsorption of Cr(VI) using FeCl 3-modified biochar: Synergistic roles of persistent free radicals and Fe(II). J Environ Sci (China) 2024; 137:626-638. [PMID: 37980045 DOI: 10.1016/j.jes.2023.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/07/2023] [Accepted: 03/07/2023] [Indexed: 11/20/2023]
Abstract
Transition metal iron and persistent free radicals (PFRs) both affect the redox properties of biochar, but the electron transfer relationship between them and the coupling reduction mechanism of Cr(VI) requires further investigation. To untangle the interplay between iron and PFRs in biochar and the influences on redox properties, FeCl3-modified rice husk biochar (FBCs) was prepared and its reduction mechanism for Cr(VI) without light was evaluated. The FBCs had higher surface positive charges, oxygen-containing functional groups, and PFRs compared with pristine rice husk biochar (BC). Phenoxyl PFRs with high electron-donating capability formed in biochar. The pronounced electron paramagnetic resonance signals showed that the PFRs preferred to form at lower Fe(III) concentrations. While a high concentration of Fe(III) would be reduced to Fe(II) and consumed the formed PFRs. Adsorption kinetics and X-ray photoelectron spectroscopy analysis indicated that the FBCs effectively enhanced the Cr(VI) removal efficiency by 1.54-8.20 fold and the Cr(VI) reduction efficiency by 1.88-9.29 fold compared to those of BC. PFRs quenching and competitive reductant addition experiments revealed that the higher Cr(VI) reduction performance of FBCs was mainly attributed to the formed PFRs, which could contribute to ∼74.0% of Cr(VI) reduction by direct or indirect electron transfer. The PFRs on FBCs surfaces could promote the Fe(III)/Fe(II) cycle through single electron transfer and synergistically accelerate ∼52.3% of Cr(VI) reduction. This study provides an improved understanding of the reduction mechanism of iron-modified biochar PFRs on Cr(VI) in environments.
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Affiliation(s)
- Shujie Hu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
| | - Chengshuai Liu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Science, Guiyang 550081, China.
| | - Hongling Bu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Manjia Chen
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Ying-Heng Fei
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China.
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Sebabi M, Mabuba N, Pillay K, Malinga SP. Hyperbranched-Polyethylenimine-Functionalized Coal Fly Ash as an Adsorbent for the Removal of Hexavalent Chromium and Reuse as a Dye Photocatalyst. ACS OMEGA 2024; 9:8954-8972. [PMID: 38434891 PMCID: PMC10905742 DOI: 10.1021/acsomega.3c06491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/27/2023] [Accepted: 01/10/2024] [Indexed: 03/05/2024]
Abstract
Coal fly ash (CFA) has been extensively researched as an adsorbent for heavy metals, but its application is limited by its low adsorption capacity. The modification of CFA with hyperbranched polymers results in improved adsorption capacities. Hyperbranched polyethylenimine (HPEI) is a hyperbranched polymer containing NH2 groups that can bind with heavy metal ions through complexation or electrostatic interactions. In this study, CFA-HPEI adsorbents with various HPEI loadings (1-5%) were prepared and evaluated for the removal of Cr(VI). The successful incorporation of HPEI onto CFA was confirmed using Fourier transform infrared, elemental analysis, and X-ray photoelectron spectroscopy (XPS). The 3% CFA-HPEI loaded adsorbent resulted in optimum results when the effect of pH and adsorbent dosage was studied. The pseudo-second-order kinetics model best described the adsorption kinetics at an initial concentration of 20 mg/L. The Freundlich adsorption isotherm model best fitted the equilibrium adsorption data with a maximum adsorption capacity of 85.93 mg/g. The Cr-loaded adsorbent was reused as a photocatalyst to degrade methylene blue (MB) in the presence of visible light. The loaded adsorbent degraded 98.9% of MB (5 mg/L) within 180 min and was accompanied by compounds with m/z of 173 and 234, corresponding to the intermediate degradation of Azure A. The XPS analysis confirmed the coexistence of Cr(III) and Cr(VI) on the surface of the adsorbent. In addition, the loaded adsorbent exhibited good stability following MB degradation with no structural changes observed. Thus, CFA-HPEI adsorbents can be utilized as low-cost adsorbents for the remediation of toxic Cr(VI) from water and wastewater. The Cr-loaded CFA-HPEI adsorbent can be effectively reused as a photocatalyst, thus reducing environmental pollution.
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Affiliation(s)
- Molahlegi
Orienda Sebabi
- Department
of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
- Spectrum, University
of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa
| | - Nonhlangabezo Mabuba
- Department
of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
| | - Kriveshini Pillay
- Department
of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
| | - Soraya Phumzile Malinga
- Department
of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
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6
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Zhang G, Zhou L, Chi T, Fan X, Fang Y, Zou H, Bao X, Zeng Y. Effect of pyrolytic temperatures on the 2,4-dichlorophenol adsorption performance of biochar derived from Populus nigra. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-31990-2. [PMID: 38236571 DOI: 10.1007/s11356-024-31990-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024]
Abstract
To investigate the correlation between the physicochemical properties of biochar and its adsorption performance for 2,4-dichlorophenol (2,4-DCP), Populus nigra was subjected to oxygen-limited pyrolysis at temperatures ranging from 300 to 600 ℃. The experimental results showed that as the pyrolysis temperature increased, the specific surface area and degree of graphitization of the resultant biochar increased, but the amount of oxygen-containing functional groups decreased. Populus nigra biochar produced at 450 ℃ exhibits the best adsorption performance for 2,4-DCP due to its excellent physicochemical properties and greater electron exchange capability. The removal of 2,4-DCP is a multi-step adsorption process dominated by chemisorption, which involved oxygen-containing functional groups-mediated hydrogen bonding, as well as π-π electron donor-acceptor (EDA) interaction between the aromatic rings and Cl atoms. The study highlights the potential of Populus nigra residues for producing biochar as an affordable and effective adsorbent for 2,4-DCP removal.
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Affiliation(s)
- Guanhao Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Lu Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China.
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, China.
| | - Tianying Chi
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- CCCC-TDC Environmental Engineering Co., Ltd., Tianjin, 300461, People's Republic of China
| | - Xueyan Fan
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Yi Fang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Honghao Zou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Xunli Bao
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Yulin Zeng
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
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7
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Zhang D, Zhou D, Lu L, Zhang M, Lü T, Huang J, Zhao H, Zhou J, Rinklebe J. Preferential, synergistic sorption and reduction of Cr(VI) from chromium-rhodamine B mixed wastewater by magnetic porous biochar derived from wasted Myriophyllum aquaticum biomass. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121593. [PMID: 37030599 DOI: 10.1016/j.envpol.2023.121593] [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: 02/10/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 06/19/2023]
Abstract
Eradication of heavy metals and dyes simultaneously from wastewater is urgently needed to safeguard public and environmental health. In this study, magnetic porous biochar derived from wasted Myriophyllum aquaticum (MPMaB) was synthesized by KOH-activation and co-precipitation method to treat chromate and rhodamine B (RhB)-bearing wastewater. The KOH activation significantly improved the pore structure of biochar with a high specific surface area of 937.1 m2 g-1. The sorption performance of MPMaB for Cr(VI) and RhB in single and co-solutes conditions was evaluated. In single system, a pH-dependent sorption pattern for Cr(VI) by MPMaB was revealed and the estimated sorption capability reached 175.4 mg g-1, whereas the Langmuir-based sorption capacity of RhB was 175.4 mg g-1 pH-independently. MPMaB partially transformed Cr(VI) to less toxic Cr(III) (approximately 59.3%). Synergistic sorption of Cr(VI) with the coexistence of RhB was observed, where synergistic effect ranged from 119% to 527% depending on pH. For example, the sorption capacity of Cr(VI) on MPMaB, at pH 2, augmented from 175.4 mg g-1 (single system) to 208.3 mg g-1 (binary system). Preferential sorption of Cr(VI) was found and was further confirmed by the post-sorption of Cr(VI) (or RhB) by MPMaB pre-sorbed with RhB (or chromate). Chromate sorption mechanisms mainly include electrostatic interactions and complexation, while the sorption of RhB is ascribed to π-π interactions, pore filling and hydrogen bonding. Additionally, MPMaB showed excellent reusability and maintained high removal efficiency after 5 cycles. In short, MPMaB can efficiently treat chromium and dyes-containing wastewater as sustainable and environmentally friendly adsorbent.
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Affiliation(s)
- Dong Zhang
- College of Materials and Environmental Engineering, Hangzhou Dianzi Univerisity, Hangzhou, 310018, Zhejiang, China
| | - Danli Zhou
- College of Materials and Environmental Engineering, Hangzhou Dianzi Univerisity, Hangzhou, 310018, Zhejiang, China
| | - Li Lu
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, Zhejiang, China.
| | - Ming Zhang
- Department of Environmental Science and Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang, China
| | - Ting Lü
- College of Materials and Environmental Engineering, Hangzhou Dianzi Univerisity, Hangzhou, 310018, Zhejiang, China
| | - Jingang Huang
- College of Materials and Environmental Engineering, Hangzhou Dianzi Univerisity, Hangzhou, 310018, Zhejiang, China
| | - Hongting Zhao
- College of Materials and Environmental Engineering, Hangzhou Dianzi Univerisity, Hangzhou, 310018, Zhejiang, China
| | - Jie Zhou
- College of Materials and Environmental Engineering, Hangzhou Dianzi Univerisity, Hangzhou, 310018, Zhejiang, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste-Management, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
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Yan N, Hu B, Zheng Z, Lu H, Chen J, Zhang X, Jiang X, Wu Y, Dolfing J, Xu L. Twice-milled magnetic biochar: A recyclable material for efficient removal of methylene blue from wastewater. BIORESOURCE TECHNOLOGY 2023; 372:128663. [PMID: 36693504 DOI: 10.1016/j.biortech.2023.128663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 06/17/2023]
Abstract
Although magnetic modification has potential for preparing recyclable biochar, the traditional preparation methods of loading magnetic materials on biochar will probably lead to pore blockage and consequently remarkable adsorption recession. Herein, a preparation method was developed in which ball milled biochar was loaded with ultrafine magnetite and then milled for a second time, thus generating a magnetic, recyclable biochar with minimal pore blockage. The deposits of magnetite did not significantly wrap the biochar, although a decreased sorption performance was still detectable. Benefitting from the extra milling step, surface functional groups and specific surface areas of the adsorbents were largely restored, thus leading to a 93.8 % recovery adsorption of 84.6 ± 2.5 mg/L on methylene blue. Meanwhile, the recyclability of the material was not affected. The adsorption was driven by multiple interactions. These twice-milled magnetic biochar is quite outstanding for sustainable removal of aqueous contaminants with its recyclability and high sorption efficiency.
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Affiliation(s)
- Nina Yan
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China
| | - Biao Hu
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China
| | - Zhiyu Zheng
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China
| | - Haiying Lu
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, PR China; National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze 223100, Jiangsu, PR China
| | - Jingwen Chen
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China
| | - Xiaomei Zhang
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China
| | - Xizhi Jiang
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China
| | - Yonghong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, PR China
| | - Jan Dolfing
- Faculty Energy and Environment, Northumbria University, Newcastle-upon-Tyne, NE1 8QH, UK
| | - Lei Xu
- Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Jiangsu Province, Nanjing 210014, Jiangsu, PR China.
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9
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Wang FP, Zeng YN, Wang YT, Li JG, Zhang X, Ji AM, Kang LL, Ji R, Yu Q, Gao D, Wang XM, Fang Z. Highly efficient removal of hexavalent chromium by magnetic Fe-C composite from reed straw and electric furnace dust waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:33737-33755. [PMID: 36495434 DOI: 10.1007/s11356-022-24491-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Reed straw and electric furnace dust (EFD) waste were used to prepare magnetic Fe-C composite (EFD&C) by co-precipitation and high-temperature activation method to remove Cr(VI) from water. The magnetic EFD&C owned a large specific surface (536.61 m2/g) and a porous structure (micropores and mesopores), and had an efficient removal capacity for Cr(VI). Under conditions of pH (2), the addition amount of EFD&C (1 g/L), the adsorption time (760 min), and the temperature (45 °C), the maximum adsorption capacity reached 111.94 mg/g. The adsorption mechanism mainly attributed to chemical adsorption (redox), Cr(VI) reduced to Cr(III) by Fe(II) and Fe(0) (from Fe3O4 and Fe components in EFD) and surface functional groups of -OH, C = C, C-C and O-C = O (from biochar), and secondary attributed to physical adsorption, Cr(VI) and Cr(III) (from reduced Cr(VI)) adsorbed into the porous structure of EFD&C. This study provided a feasible solution for the preparation of adsorbents for adsorbing heavy metals from iron-containing metallurgical solid waste and biomass waste, which contributed to reducing the environmental pollution and lowering the cost of adsorbent preparation.
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Affiliation(s)
- Fu-Ping Wang
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Ya-Nan Zeng
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Yi-Tong Wang
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China.
| | - Jun-Guo Li
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Xi Zhang
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Ai-Min Ji
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Le-Le Kang
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Rui Ji
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Qing Yu
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Di Gao
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Xiao-Man Wang
- College of Metallurgy and Energy, North China University of Science and Technology, 21 Bohai Street, Tangshan, 063210, China
| | - Zhen Fang
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing, 210031, China
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10
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Kuang Q, Liu K, Wang Q, Chang Q. Three-dimensional hierarchical pore biochar prepared from soybean protein and its excellent Cr(VI) adsorption. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Wang Q, Li JS, Sun Poon C. Production of sorptive granules from incinerated sewage sludge ash and upcycling in cement mortar. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Khurshid H, Mustafa MRU, Isa MH. Adsorption of chromium, copper, lead and mercury ions from aqueous solution using bio and nano adsorbents: A review of recent trends in the application of AC, BC, nZVI and MXene. ENVIRONMENTAL RESEARCH 2022; 212:113138. [PMID: 35364043 DOI: 10.1016/j.envres.2022.113138] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/18/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Recent trends in adsorption of Chromium (Cr), Copper (Cu), Lead (Pb) and Mercury (Hg) in wastewater using (i) carbonaceous materials including activated carbon (AC) and biochar (BC), and (ii) nanomaterials including nano zero-valent iron (nZVI) and MXenes have been discussed in this paper. It has been found that adsorption capacity depends largely on the adsorbent modification technique, initial pH of wastewater, dosage of adsorbent, contact time and initial concentration of the pollutants. The pH value ranges for maximum removal of Cr, Cu, Pb and Hg have been reported as 2-4, 5-6, 5-8 and 3-8, respectively. Up to 99% removal of metals has been reported using AC, BC, nZVI and MXene. The mechanism involves the reduction and chemical adsorption of metals. AC and BC have a higher surface area (up to 5000 m2/g) compared to nZVI (up to 500 m2/g) and MXene (up to 67.66 m2/g). However, the higher reactivity and regeneration capacity of nZVI and MXene make them suitable adsorbents. From a practical point of view the application of adsorbents for real effluents, cost analysis, regeneration capability and reuse of heavy metals are some aspects that need attention in future studies. The removal efficiencies of AC and BC are comparable to the nZVI and MXene. The cost analysis may be an attractive aspect to decide the future application of these adsorbents at large scale.
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Affiliation(s)
- Hifsa Khurshid
- Department of Civil & Environmental Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia.
| | - Muhammad Raza Ul Mustafa
- Department of Civil & Environmental Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Centre for Urban Resource Sustainability, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, 32610, Perak, Malaysia
| | - Mohamed Hasnain Isa
- Civil Engineering Programme, Faculty of Engineering, Universiti Teknologi Brunei, Tungku Highway, Gadong, BE1410, Brunei Darussalam
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Gao W, Tan Y, Wu B, Chen Y, Hu Z, Wang Y, Wen Y, Zhou Z, Zhou N. Nano-Fe1−xS embedded BCAA/Fe3O4 as the stabilized catalyst for simultaneous quinclorac oxidation and Cr(VI) reduction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Deng J, Liu Y, Li H, Huang Z, Qin X, Huang J, Zhang X, Li X, Lu Q. A novel biochar-copolymer composite for rapid Cr(VI) removal: Adsorption-reduction performance and mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121275] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Xu L, Xing X, Peng J. Removal of Zn2+ from Aqueous Solution Using Biomass Ash and Its Modified Product as Biosorbent. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159006. [PMID: 35897377 PMCID: PMC9330103 DOI: 10.3390/ijerph19159006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/16/2022] [Accepted: 07/22/2022] [Indexed: 12/04/2022]
Abstract
To study the removal effect of bottom ash of biomass power plants and its modified products on zinc (Zn2+) in aqueous solution, a series of indoor experiments is carried out. The aim of this work is to explore a method to improve the ability of biomass ash to remove Zn2+ from aqueous solution and obtain its adsorption characteristics of Zn2+ in aqueous solution; on this basis, the feasibility of its application in the treatment of Zn2+-contaminated wastewater is analyzed. The mesoporous siliceous material is used to modify the biomass, and the modified material is functionalized with 3-aminopropyltriethoxysilane. The results show that the specific surface area of modified biomass ash is nine times that of the material before modification. The adsorption capacity of Zn2+ on the material increases with the increase of pH, and pH 6 is the optimum pH to remove Zn2+ from the aqueous solution. The Langmuir model and Freundlich model can show better fits for biomass ash and the modified material, respectively. Thermodynamic analysis results show that the adsorption of Zn2+ is spontaneous and endothermic in nature. The adsorption of Zn2+ onto biomass and modified biomass ash follow pseudo-first-order and pseudo-second-order kinetics, respectively.
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Affiliation(s)
- Lei Xu
- Henan Province Engineering Research Center of Environmental Laser Remote Sensing Technology and Application, Nanyang Normal University, Nanyang 473001, China
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-Line of South-to-North Diversion Project of Henan Province, Nanyang Normal University, Nanyang 473001, China
- Correspondence: ; Tel.: +86-15238178158
| | - Xiangyu Xing
- Non-Major Foreign Language Teaching Department, Nanyang Normal University, Nanyang 473061, China;
| | - Jianbiao Peng
- School of Environment, Henan Normal University, Xinxiang 453007, China;
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