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Jia B, Chen X, Shen Y, Li Z, Ma X, Yu HY. Two-response surface design optimization of carboxylated CNCs with super high thermal stability and dye removal capability. Carbohydr Polym 2024; 342:122395. [PMID: 39048232 DOI: 10.1016/j.carbpol.2024.122395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 06/06/2024] [Accepted: 06/08/2024] [Indexed: 07/27/2024]
Abstract
Discharging wastewater from industrial dyeing and printing processes poses a significant environmental threat, necessitating green and efficient adsorbents. Cellulose nanocrystals (CNCs) have emerged as a promising option for dye adsorbing. However, the industrial production and commercialization of CNCs still faced low yield, time-consuming, and uneco-friendly. In this study, we proposed a facile hydrochloric/maleic acid (HCl/C4H4O4) hydrolysis method to synthesize carboxylated CNCs using Box-Behnken design and dual response surface design, which can systematically investigate the effect of experimental factors (temperature, time and HCl/C4H4O volume ratio) on the final products. The rod-liked carboxylated CNCs gave the highest yield of 90.50 %, maximum carboxyl content of 1.29 mmol/g, and efficient dye removal ratio of 91.5 %. Furthermore, compared to CNCs obtained by commonly sulfuric acid hydrolysis way (CNCs-S) with a Tmax of 242.6 °C, the CNCs extracted at 5 h exhibited significantly improved thermal stability with Tmax reaching 351.2 °C. The enriched carboxyl content and excellent thermal stability show potential wastewater treatment applications under harsh conditions.
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Affiliation(s)
- Bowen Jia
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Xiang Chen
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Yunfei Shen
- Huzhou City Linghu Xinwang Chemical Co., Ltd, Huzhou 313018, China
| | - Zilu Li
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Xue Ma
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Hou-Yong Yu
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China.
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2
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Chen Y, Liu X, Zhou R, Qiao J, Liu J, Cai R, Liu J, Rong J, Chen Y. Porous sodium alginate/cellulose nanofiber composite hydrogel microspheres for heavy metal removal in wastewater. Int J Biol Macromol 2024; 278:135000. [PMID: 39181348 DOI: 10.1016/j.ijbiomac.2024.135000] [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: 06/13/2024] [Revised: 07/20/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
High adsorption capacity, high adsorption rate and reusable adsorbents are urgent needed for removing heavy metals from wastewater. In this study, porous sodium alginate/cellulose nanofiber (SA/CNF) composite hydrogel microspheres were prepared by combining sodium alginate with cellulose nanofibers by microfluidics technology and adding polyethylene glycol (PEG) as pore making agent. The SA/CNF composite hydrogel microspheres could efficiently adsorb heavy metals (Pb2+, Cu2+ and Cd2+) in wastewater. The influencing factors of adsorption process, including pH, temperature, initial concentration, coexisting ions and aquatic environments, were systematically discussed. The adsorption process was more consistent with Langmuir isotherm model and pseudo-second-order model in batch system, indicating the adsorption process was mainly chemical adsorption. The adsorption capacity to Pb2+ obtained by Langmuir model was as high as 544.66 mg/g at 20 °C. Fixed-bed column adsorption experiments demonstrated the excellent performance of the as-prepared SA/CNF microspheres for treatment of the flowing wastewater in a column system. Overall, a highly practical adsorption process based on hydrogel adsorbents was developed for the removal of heavy metals from actual wastewater.
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Affiliation(s)
- Ying Chen
- College of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China; National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou, Hunan 412007, China
| | - Xin Liu
- College of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China
| | - Rui Zhou
- College of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China
| | - Jiaxian Qiao
- College of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China
| | - Jiating Liu
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou, Hunan 412007, China; Hunan Provincial Key Laboratory of Biomass Fiber Functional Materials, Hunan University of Technology, Zhuzhou, Hunan 412007, China; Hunan Automotive Engineering Vocational College, Zhuzhou, Hunan 412001, China
| | - Rong Cai
- Hunan Automotive Engineering Vocational College, Zhuzhou, Hunan 412001, China
| | - Jiaxian Liu
- Foshan (Southern China) Institute for New Materials, Foshan, Guangdong 528247, China
| | - Jingjing Rong
- Department of Cardiology, Hunan Provincial People's Hospital (The Frist Affiliated Hospital of Hunan Normal University), Changsha, Hunan 410000, China
| | - Yi Chen
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou, Hunan 412007, China; Hunan Provincial Key Laboratory of Biomass Fiber Functional Materials, Hunan University of Technology, Zhuzhou, Hunan 412007, China.
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3
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Chen L, Hu J, Wang H, He Y, Deng Q, Wu F. Predicting Cd(II) adsorption capacity of biochar materials using typical machine learning models for effective remediation of aquatic environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173955. [PMID: 38879031 DOI: 10.1016/j.scitotenv.2024.173955] [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: 03/06/2024] [Revised: 05/12/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
The screening and design of "green" biochar materials with high adsorption capacity play a pivotal role in promoting the sustainable treatment of Cd(II)-containing wastewater. In this study, six typical machine learning (ML) models, namely Linear Regression, Random Forest, Gradient Boosting Decision Tree, CatBoost, K-Nearest Neighbors, and Backpropagation Neural Network, were employed to accurately predict the adsorption capacity of Cd(II) onto biochars. A large dataset with 1051 data points was generated using 21 input variables obtained from batch adsorption experiments, including preparation conditions for biochar (2 features), physical properties of biochar (4 features), chemical composition of biochar (9 features), and adsorption experiment conditions (6 features). The rigorous evaluation and comparison of the ML models revealed that the CatBoost model exhibited the highest test R2 value (0.971) and the lowest RMSE (20.54 mg/g), significantly outperforming all other models. The feature importance analysis using Shapley Additive Explanations (SHAP) indicated that biochar chemical compositions had the greatest impact on model predictions of adsorption capacity (42.2 %), followed by adsorption conditions (37.57 %), biochar physical characteristics (12.38 %), and preparation conditions (7.85 %). The optimal experimental conditions optimized by partial dependence plots (PDP) are as follows: as high Cd(II) concentration as possible, C(%) of 33 %, N(%) of 0.3 %, adsorption time of 600 min, pyrolysis time of 50 min, biochar dosage of less than 2 g/L, O(%) of 42 %, biochar pH value of 11.2, and DBE of 1.15. This study unveils novel insights into the adsorption of Cd(II) and provides a comprehensive reference for the sustainable engineering of biochars in Cd(II) wastewater treatment.
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Affiliation(s)
- Long Chen
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Jian Hu
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Hong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yanying He
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Qianyi Deng
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Fangfang Wu
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China.
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4
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Zhang M, Huang M, Rui L, Huan X, Li Y, Huang Y, Wei W. Polystyrene microplastics as carriers for nano-hydroxyapatite particles: Impact of surface functionalization and mechanistic insights. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135680. [PMID: 39213774 DOI: 10.1016/j.jhazmat.2024.135680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/06/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
The potential of microplastics (MPs) to act as carriers for contaminants or engineered nanomaterials is of rising concern. However, directly determining the vector effect of polystyrene (PS) MPs towards nano-hydroxyapatite (nHAP) particles, a typical nano phosphorus fertilizer and soil remediation material, has been rarely studied. In this study, the interaction of differentially surface functionalized PS MPs with nHAP were investigated through batch experiments under different solution chemistry conditions. The results demonstrated that nHAP had the highest attachment/adsorption affinity onto carboxyl-functionalized PS, followed by bare PS and amino-functionalized PS under near-neutral pH conditions. Adsorption of nHAP exhibited a strong pH-dependent behavior with PS MPs, increasing under acidic-neutral pH (3-7) and decreasing at higher pH values. The presence of humic acid and NaCl hindered the adsorption of nHAP onto MPs. Scanning electron microscopy observations revealed a rod-like morphology for adsorbed nHAP, which was randomly distributed on MPs surface. Surface complexation and cation-π interaction were mainly responsible for the adsorption of nHAP as revealed by multiple spectroscopic analyses. These results provide mechanistic insights into nHAP-PS interactions and expound the effect of surface functionalization of PS on binding mechanisms, and thus bring important clues for better understanding the vector effects of MPs towards nanoparticles.
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Affiliation(s)
- Mengjia Zhang
- School of Environment, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University, Nanjing 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
| | - Mengjie Huang
- School of Environment, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University, Nanjing 210023, China
| | - Linping Rui
- School of Environment, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University, Nanjing 210023, China
| | - Xinyu Huan
- School of Environment, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University, Nanjing 210023, China
| | - Yuanyi Li
- School of Environment, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University, Nanjing 210023, China
| | - Yao Huang
- Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Wei Wei
- School of Environment, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University, Nanjing 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China.
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5
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Zhang T, Wan X, Chen H, Luo J, Ran Y, Xie L, Li Y, Zhang YF. Incorporation of copper ion promoted adsorption of anionic dye (Acid Yellow 36) by acrolein-crosslinked polyethyleneimine/chitosan hydrogel: Adsorption, dynamics, and mechanisms. Int J Biol Macromol 2024; 274:133281. [PMID: 38906358 DOI: 10.1016/j.ijbiomac.2024.133281] [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: 02/01/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
In this study, a novel adsorbent, A-PEI/CS-Cu2+, was developed by crosslinking polyethyleneimine/chitosan hydrogel with acrolein and loading it with copper ions. The adsorption process of A-PEI/CS-Cu2+ on the anionic dye acid yellow 36 (AY36) was investigated by kinetic, isothermal and thermodynamic modeling. It was noteworthy that A-PEI/CS-Cu2+ exhibited rapid adsorption with a 90 % removal rate achieved within just 5 min, which was much faster than the adsorption rate of A-PEI/CS without load of copper ions and showed its potential for rapid adsorption applications. The maximum adsorption capacity for AY36 could reach up to 3114 mg g-1. In addition, the high concentration of saline wastewater was found to have almost no effect on the adsorption reaction in the salt effect test experiment. In five desorption-regeneration cycle experiments, the sample exhibited good recyclability and regeneration performance. The driving force of the adsorption process mainly originated from the electrostatic interaction, hydrogen bonding, and intermolecular interaction, in which the addition of copper ions led to the enhancement of the electrostatic interaction and chelation between A-PEI/CS-Cu2+ and AY36. Overall, the findings suggest the excellent potential of A-PEI/CS-Cu2+ for rapid and efficient adsorption, as well as its suitability for practical applications in wastewater treatment.
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Affiliation(s)
- Tao Zhang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Xin Wan
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Hui Chen
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Jiaqi Luo
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Yi Ran
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Lingying Xie
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Yan Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China.
| | - Yue-Fei Zhang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China.
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6
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Li A, Lu T, Zhang Y, Deng S, Duan X, Qiu G. Mechanisms for synergistically enhancing cadmium remediation performance of biochar: Silicon activation and functional group effects. BIORESOURCE TECHNOLOGY 2024; 404:130913. [PMID: 38821426 DOI: 10.1016/j.biortech.2024.130913] [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: 02/26/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
This work proposes an advanced biochar material (β-CD@SiBC) for controllable transformation of specific silicon (Si) forms through endogenous Si activation and functional group introduction for efficient cadmium (Cd) immobilization and removal. The maximum adsorption capacity of β-CD@SiBC for Cd(II) reached 137.6 mg g-1 with a remarkable removal efficiency of 99 % for 200 mg L-1Cd(II). Moreover, the developed β-CD@SiBC flow column exhibited excellent performance at the environmental Cd concentration, with the final concentration meeting the environmental standard for surface water quality (0.05 mg L-1). The remediation mechanism of β-CD@SiBC could be mainly attributed to mineral precipitation and ion exchange, which accounted for 42 % and 29 % of the remediation effect, respectively, while functional group introduction enhanced its binding stability with Cd. Overall, this work proposes the role and principle of transformation of Si forms within biochar, providing new strategies for better utilizing endogenous components in biomass.
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Affiliation(s)
- Anyu Li
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China.
| | - Tao Lu
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China.
| | - Yutong Zhang
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China.
| | - Shengjun Deng
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China.
| | - Xianjie Duan
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China.
| | - Guohong Qiu
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China; Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
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7
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Satpati GG, Devi A, Kundu D, Dikshit PK, Saravanabhupathy S, Rajlakshmi, Banerjee R, Chandra Rajak R, Kamli MR, Lee SY, Kim JW, Davoodbasha M. Synthesis, delineation and technological advancements of algae biochar for sustainable remediation of the emerging pollutants from wastewater-a review. ENVIRONMENTAL RESEARCH 2024; 258:119408. [PMID: 38876417 DOI: 10.1016/j.envres.2024.119408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/30/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
The use of algae for value-added product and biorefining applications is enchanting attention among researchers in recent years due to its remarkable photosynthetic ability, adaptability, and capacity to accumulate lipids and carbohydrates. Algae biomass, based on its low manufacturing costs, is relatively renewable, sustainable, environmentally friendly and economical in comparison with other species. High production rate of algae provides a unique opportunity for its conversion to biochar with excellent physicochemical properties, viz. high surface area and pore volume, high adsorption capacity, abundant functional groups over surface, etc. Despite several potential algal-biochar, a detailed study on its application for removal of emerging contaminants from wastewater is limited. Therefore, this technical review is being carried out to evaluate the specific elimination of inorganic and organic pollutants from wastewater, with a view to assessing adsorption performances of biochar obtained from various algae species. Species-specific adsorption of emerging pollutants from wastewater have been discussed in the present review. The promising methods like pyrolysis, gasification, dry and wet torrefaction for the production of algae biochar are highlighted. The strategies include chemical and structural modifications of algae biochar for the removal of toxic contaminants have also been considered in the current work. The overall aim of this review is to confer about the synthesis, technological advancements, delineation and application of algae biochar for the treatment of wastewater.
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Affiliation(s)
- Gour Gopal Satpati
- Department of Botany, Bangabasi Evening College, University of Calcutta, 19 Rajkumar Chakraborty Sarani, Kolkata 700009, West Bengal, India.
| | - Anuradha Devi
- Department of Environmental Microbiology (DEM), School of Earth and Environmental Sciences (SEES), Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, U.P., India
| | - Debajyoti Kundu
- Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University, Amaravati, Andhra Pradesh 522240, India
| | - Pritam Kumar Dikshit
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur-522502, India; Department of Biotechnology, Graphic Era Deemed to be University, Dehradun, Uttarakhand, 248002, India
| | | | - Rajlakshmi
- Agricultural and Food Engineering Department, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Rintu Banerjee
- Agricultural and Food Engineering Department, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Rajiv Chandra Rajak
- Department of Botany, Marwari College, Ranchi University, Ranchi 834008, India
| | - Majid Rasool Kamli
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sang-Yul Lee
- Division of Bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Jung-Wan Kim
- Centre for Surface Technology and Applications, Korea Aerospace University, Goyang-si, Republic of Korea
| | - MubarakAli Davoodbasha
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, 600048, India; Crescent Global Outreach Mission (CGOM), B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, India.
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8
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Flores K, Gonzalez DF, Morales HM, Mar A, Garcia-Segura S, Gardea-Torresdey JL, G Parsons J. Amino-modified upcycled biochar achieves selective chromium removal in complex aqueous matrices. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 360:121160. [PMID: 38761625 DOI: 10.1016/j.jenvman.2024.121160] [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: 01/06/2024] [Revised: 04/17/2024] [Accepted: 05/10/2024] [Indexed: 05/20/2024]
Abstract
Chromium pollution of groundwater sources is a growing global issue, which correlates with various anthropogenic activities. Remediation of both the Cr(VI) and Cr(III), via adsorption technologies, has been championed in recent years due to ease of use, minimal energy requirements, and the potential to serve as a highly sustainable remediation technology. In the present study, a biochar sorbent sourced from pineapple skins, allowed for the upcycling of agricultural waste into water purification technology. The biochar material was chemically modified, through a green amination method, to produce an efficient and selective adsorbent for the removal of both Cr(VI) and Cr(III) from complex aqueous matrices. From FTIR analysis it was evident that the chemical modification introduced new C-N and N-H bonds observed in the modified biochar along with a depletion of N-O and C-H bonds found in the pristine biochar. The amino modified biochar was found to spontaneously adsorb both forms of chromium at room temperature, with binding capacities of 46.5 mg/g of Cr(VI) and 27.1 mg/g of Cr(III). Interference studies, conducted in complex matrices, showed no change in adsorption capacity for Cr(VI) in matrices containing up to 3,000× the concentration of interfering ions. Finally, Cr(III) removal was synergized to 100% adsorption at interfering ions concentrations up to 330× of the analyte, which were suppressed at higher interference concentrations. Considering such performance, the amino modified biochar achieved selective removal for both forms of chromium, showing great potential for utilization in complex chromium pollution sources.
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Affiliation(s)
- Kenneth Flores
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA.
| | - Diego F Gonzalez
- School of Integrative Biological and Chemical Sciences University of Texas Rio Grande Valley, 1 West University Blvd., Brownsville, TX, 78521, USA
| | - Helia M Morales
- School of Integrative Biological and Chemical Sciences University of Texas Rio Grande Valley, 1 West University Blvd., Brownsville, TX, 78521, USA; Escuela de Ingenierıa y Ciencias, Tecnologico de Monterrey, Av E Garza Sada # 2501, Monterrey, 64849, Mexico
| | - Arnulfo Mar
- School of Integrative Biological and Chemical Sciences University of Texas Rio Grande Valley, 1 West University Blvd., Brownsville, TX, 78521, USA
| | - Sergi Garcia-Segura
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA
| | - Jorge L Gardea-Torresdey
- Department of Chemistry & Biochemistry and Environmental Science and Engineering, University of Texas at El Paso, El Paso, TX, 79968, USA
| | - Jason G Parsons
- School of Earth Environmental, and Marine Science, University of Texas Rio Grande Valley, 1 West University Blvd., Brownsville, TX, 78521, USA.
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9
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Na Nagara V, Sarkar D, Neve S, Saleh H, Boufadel M, Giri S, Datta R. Repurposing spent biomass of vetiver grass used for stormwater treatment to generate biochar and ethanol. CHEMOSPHERE 2024; 358:142196. [PMID: 38692362 DOI: 10.1016/j.chemosphere.2024.142196] [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: 03/16/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Stormwater pollution is a key factor contributing to water quality degradation, posing substantial environmental and human health risks. Although stormwater retention ponds, also referred to as wet ponds, are commonly implemented to alleviate stormwater challenges by reducing peak flow and removing suspended solids, their effectiveness in removing heavy metals and nutrients is limited. This study evaluated the performance of floating treatment platforms (FTPs) featuring vetiver grass (Chrysopogon zizanioides), a non-invasive, nutrient- and metal-accumulating perennial grass, in removing heavy metals (Cu, Pb, and Zn) and nutrients (P and N) in stormwater retention ponds. Furthermore, the potential for utilizing the spent vetiver biomass for generating biochar and bioethanol was investigated. The study was conducted in a greenhouse setup under simulated wet and dry weather conditions using pond water collected from a retention pond in Stafford Township, New Jersey, USA. Two FTPs with vetiver (vegetated FTPs) were compared with two FTPs without vetiver (non-vegetated FTPs), which served as controls. Results showed that the removal of heavy metals and nutrients by the FTPs with vetiver was significantly higher (p < 0.05) than the FTPs without vetiver. Notably, vetiver showed resilience to stormwater pollutants and hydroponic conditions, displaying no visible stress symptoms. The biochar and bioethanol generated from the spent vetiver exhibited desirable yield and quality, without raising concerns regarding pollutant leaching, indicated by very low TCLP and SPLP concentrations. This study provides compelling evidence that the implementation of vetiver-based FTPs offers a cost-effective and environment-friendly solution for mitigating stormwater pollution in retention ponds. Furthermore, the utilization of vetiver biomass for biofuel and biochar production supports clean production and fostering circular economy efforts.
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Affiliation(s)
- Viravid Na Nagara
- Department of Civil, Environmental, and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Dibyendu Sarkar
- Department of Civil, Environmental, and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA.
| | - Sameer Neve
- Department of Civil, Environmental, and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Hadeer Saleh
- Department of Civil, Environmental, and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Michel Boufadel
- Center for Natural Resources, Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Subhasis Giri
- Department of Ecology, Evolution, and Natural Resources, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Rupali Datta
- Department of Biological Sciences, Michigan Technological University, Houghton, MI, 49931, USA
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10
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Wu W, Zhang H, Qian R, Yu K, Li R, Tang KHD, Wu X, Guo Z, Shao C, Yue F, Zhang Z. A polyfunctionalized carbon framework composite for efficient decontamination of Cr(VI) and polycyclic aromatic nitrides from acidic wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:43323-43338. [PMID: 38900406 DOI: 10.1007/s11356-024-34009-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 06/11/2024] [Indexed: 06/21/2024]
Abstract
Developing multifunctional engineered adsorbents is an effective strategy for decontaminating the environment from various pollutants. In this study, a polyfunctionalized carbon-framework composite, MSC-CFM, was synthesized. The composite comprises an aromatic carbon framework enriched with various functional groups, including magnetic nanoparticles, hydroxyl, and amino groups. MSC-CFM was used to decontaminate Cr(VI) and polycyclic aromatic nitrides (p-dimethylaminoazobenzene sulfonate (DAS) and diphenyl-4, 4 '-di [sodium (azo-2 -) -1-amino-naphthalene-4-sulfonate] (DANS)) from acidic wastewater. The adsorption capacities of MSC-CFM for Cr(VI), DAS and DANS, quantified using the Langmuir isotherm model, were 161.28, 310.83, and 1566.09 mg/g, respectively. Cr(VI) and PAHs (DAS and DANS) were monolayer adsorbed controlled by chemisorption. MSC-CFM could maintain good adsorption efficiency after up to 6 adsorption and desorption cycles. The presence of polycyclic aromatic nitrides promoted the adsorption of Cr(VI) in the Cr(VI)-DAS/DANS binary systems. Removal of pollutants by MSC-CFM involved a variety of unreported reaction mechanisms, such as electrostatic attraction, redox reaction, anion exchange, intermolecular hydrogen bonding, complexation reaction, π-π interaction, and anion-π interaction. MSC-CFM, enriched with a variety of functional groups, is a promising new material for environmental protection. It has good potential for practical application in treating polluted wastewater.
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Affiliation(s)
- Weilong Wu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Han Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Rong Qian
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Kunru Yu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Ronghua Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China.
- Department of Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA.
| | - Kuok Ho Daniel Tang
- Department of Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA
- Northwest A&F University and University of Arizona Micro-Campus (NWAFU-UA), Yangling, 712100, Shaanxi, China
| | - Xuan Wu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Zhiqiang Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Cong Shao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Feixue Yue
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
- Department of Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA
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11
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Pir Dad F, Khan WUD, Ijaz U, Sun H, Rafi MN, Alamri S, Tanveer M. Potential of amino acids-modified biochar in mitigating the soil Cu and Ni stresses - Targeting the tomato growth, physiology and fruit quality. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108711. [PMID: 38733941 DOI: 10.1016/j.plaphy.2024.108711] [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: 12/15/2023] [Revised: 04/07/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
Trace heavy metals (HMs) such as copper (Cu) and nickel (Ni) are toxic to plants, especially tomato at high levels. In this study, biochar (BC) was treated with amino acids (AA) to enhance amino functional groups, which effectively alleviated the adverse effects of heavy metals (HMs) on tomato growth. Hence, this study aimed to evaluate the effect of glycine and alanine modified BC (GBC/ABC) on various tomato growth parameters, its physiology, fruit yield and Cu/Ni uptake under Cu and Ni stresses. In a pot experiment, there was 21 treatments with three replications having two rates of simple BC and glycine/alanine enriched BC (0.5% and 1% (w/w). Cu and Ni stresses were added at 150 mg kg-1 respectively. Plants were harvested after 120 days of sowing and subjected to various analysis. Under Cu and Ni stresses, tomato roots accumulated more Cu and Ni than shoots and fruits, while GBC and ABC application significantly enhanced the root and shoot dry weight irrelevant to the stress conditions. Both rates of GBC decreased the malondialdehyde and hydrogen peroxide levels in plants. The addition of 0.5% GBC with Cu enhanced the tomato fruit dry weight by 1.3 folds in comparison to the control treatment; while tomato fruit juice content also increased (50%) in the presence of 0.5% GBC with Ni as compared to control. In summary, these results demonstrated that lower rate of GBC∼0.5% proved to be the best in mitigating the Cu and Ni stress on tomato plant growth by enhancing the fruit production.
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Affiliation(s)
- Fiza Pir Dad
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Waqas Ud Din Khan
- Department of Agriculture, Government College University, Lahore 54000, Pakistan; Tasmanian Institute of Agriculture, Mount Pleasant Laboratories, University of Tasmania, Launceston, Australia; School of Biological Sciences, University of Western Australia, Perth, Australia.
| | - Usman Ijaz
- Tasmanian Institute of Agriculture, Mount Pleasant Laboratories, University of Tasmania, Launceston, Australia
| | - Hongju Sun
- School of Biological Sciences, University of Western Australia, Perth, Australia; School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, 010020, PR China.
| | - Muhammad Nauman Rafi
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Saud Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohsin Tanveer
- Tasmanian Institute of Agriculture, Mount Pleasant Laboratories, University of Tasmania, Launceston, Australia; Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi PR China
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12
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Wang Y, Yan X, Zhang Y, Qin X, Yu X, Jiang L, Li B. Efficient Removal of Nickel from Wastewater Using Copper Sulfate-Ammonia Complex Modified Activated Carbon: Adsorption Performance and Mechanism. Molecules 2024; 29:2405. [PMID: 38792266 PMCID: PMC11124251 DOI: 10.3390/molecules29102405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/04/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
The necessity to eliminate nickel (Ni) from wastewater stems from its environmental and health hazards. To enhance the Ni adsorption capacity, this research applied a copper sulfate-ammonia complex (tetraamminecopper (II) sulfate monohydrate, [Cu(NH3)4]SO4·H2O) as a modifying agent for a Phragmites australis-based activated carbon preparation. The physiochemical properties of powdered activated carbon (PAC) and a modified form ([Cu(NH3)4]-PAC) were examined by measuring their surface areas, analyzing their elemental composition, and using Boehm's titration method. Batch experiments were conducted to investigate the impact of various factors, such as Ni(II) concentration, contact time, pH, and ionic strength, on its substance adsorption capabilities. Additionally, the adsorption mechanisms of Ni(II) onto activated carbon were elucidated via Fourier-transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The findings indicated that modified activated carbon ([Cu(NH3)4]-PAC) exhibited a lower surface area and total volume than the original activated carbon (PAC). The modification of PAC enhanced its surface's relative oxygen and nitrogen content, indicating the incorporation of functional groups containing these elements. Furthermore, the modified activated carbon, [Cu(NH3)4]-PAC, exhibited superior adsorption capacity relative to unmodified PAC. Both adsorbents' adsorption behaviors conformed to the Langmuir model and the pseudo-second-order kinetics model. The Ni(II) removal efficiency of PAC and [Cu(NH3)4]-PAC diminished progressively with rising ionic strength. Modified activated carbon [Cu(NH3)4]-PAC demonstrated notable pH buffering and adaptability. The adsorption mechanism for Ni(II) on activated carbon involves surface complexation, cation exchange, and electrostatic interaction. This research presents a cost-efficient preparation technique for preparing activated carbon with enhanced Ni(II) removal capabilities from wastewater and elucidates its underlying adsorption mechanisms.
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Affiliation(s)
- Yifei Wang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
- Department of Civil and Environmental Engineering E4130 Engineering Gateway Building, University of California, Irvine, CA 92697-2175, USA
| | - Xiaoxiao Yan
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Yidi Zhang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Xiaoxin Qin
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Xubiao Yu
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Li Jiang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
- College of Environmental and Resource Science, Zhejiang University, 866 Yuhuangtang Rd, Hangzhou 310058, China
| | - Bing Li
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
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13
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Ibrahim BM, Fakhre NA, Jalhoom MG, Qader IN, Shareef HY, Jalal AF. Removal of lead ions from aqueous solutions by modified cellulose. ENVIRONMENTAL TECHNOLOGY 2024; 45:2335-2347. [PMID: 35306975 DOI: 10.1080/09593330.2022.2056086] [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: 12/12/2021] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
The new adsorbent was prepared by mixing cellulose with dicyclohexyl-18- crown-6 via microwave irradiation method and it was used to remove lead ions from aqueous solution. In contrast to the traditional way (in which grafted polymers are produced by using chemical-free radical producers), this method is rapid, reproducible, and gives a high-quality product. Different physicochemical techniques such as FTIR, SEM, and XRD and TGA were used for the characterization of the produced adsorbent. Based on the ANOVA statistical value, the adsorption of Pb2+ ion onto grafted cellulose has been found to be significant, with very low probability (p) values (<0.001). The pH and initial concentration were observed to be the most significant factors that affected the Pb2+ ion removal from the analysis of variance. Pseudo-second-order and Langmuir equations were applied to the adsorption of Pb2+ ion and under the optimized conditions, the maximum absorption capacity in modified cellulose of Pb2+ was 58.3 mg/g. Various factors which affect metal ion adsorption, including temperature, power of hydrogen, shaking time, adsorbent quantity, and metal ions concentration were studied. More importantly, the adsorbent could be reused by using 0.1 M nitric acid.
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Affiliation(s)
- Bnar M Ibrahim
- Department of Chemistry, College of Science, University of Raparin, Sulaymaneyah, Iraq
| | - Nabil A Fakhre
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Iraq
| | - Moayyed G Jalhoom
- Department of Production Engineering and Minerals, University of Technology, Baghdad, Iraq
| | - Ibrahim Nazem Qader
- Department of Physics, College of Science, University of Raparin, Sulaymaneyah, Iraq
| | - Huda Y Shareef
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Iraq
| | - Aveen F Jalal
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Iraq
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14
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Xu J, Li B, Zhang XD, Wu D, Zhao JL, Chen K. Selective removal of Cr 2O 72- in aqueous solution by nonporous pure crystals of cucurbit[6]uril. Dalton Trans 2024; 53:6168-6172. [PMID: 38488062 DOI: 10.1039/d4dt00611a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Cucurbit[6]uril (Q[6]) could serve as a selective absorbent for the toxic anion Cr2O72-, which was demonstrated by the results of UV-vis, ICP, XPS, SEM, and EDS experiments. Single-crystal X-ray diffraction analysis revealed that capture capacity could be attributed to the outer-surface interactions of cucurbit[n]uril between Cr2O72- and the outer surface of Q[6].
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Affiliation(s)
- Jing Xu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Bin Li
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Xiu-Du Zhang
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu 241002, China
| | - Dong Wu
- Computer Aided Drug Discovery Center, Zhuhai Institute of Advanced Technology, Chinese Academy of Sciences, Zhuhai 519003, China.
| | - Jiang-Lin Zhao
- Precision Medicine R&D Center, Zhuhai Institute of Advanced Technology, Chinese Academy of Sciences, Zhuhai 519080, Guangdong, China
| | - Kai Chen
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
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15
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Rizwan M, Murtaza G, Zulfiqar F, Moosa A, Iqbal R, Ahmed Z, Khan I, Siddique KHM, Leng L, Li H. Tuning active sites on biochars for remediation of mercury-contaminated soil: A comprehensive review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115916. [PMID: 38171108 DOI: 10.1016/j.ecoenv.2023.115916] [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: 09/25/2023] [Revised: 12/25/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
Mercury (Hg) contamination is acknowledged as a global issue and has generated concerns globally due to its toxicity and persistence. Tunable surface-active sites (SASs) are one of the key features of efficient BCs for Hg remediation, and detailed documentation of their interactions with metal ions in soil medium is essential to support the applications of functionalized BC for Hg remediation. Although a specific active site exhibits identical behavior during the adsorption process, a systematic documentation of their syntheses and interactions with various metal ions in soil medium is crucial to promote the applications of functionalized biochars in Hg remediation. Hence, we summarized the BC's impact on Hg mobility in soils and discussed the potential mechanisms and role of various SASs of BC for Hg remediation, including oxygen-, nitrogen-, sulfur-, and X (chlorine, bromine, iodine)- functional groups (FGs), surface area, pores and pH. The review also categorized synthesis routes to introduce oxygen, nitrogen, and sulfur to BC surfaces to enhance their Hg adsorptive properties. Last but not the least, the direct mechanisms (e.g., Hg- BC binding) and indirect mechanisms (i.e., BC has a significant impact on the cycling of sulfur and thus the Hg-soil binding) that can be used to explain the adverse effects of BC on plants and microorganisms, as well as other related consequences and risk reduction strategies were highlighted. The future perspective will focus on functional BC for multiple heavy metal remediation and other potential applications; hence, future work should focus on designing intelligent/artificial BC for multiple purposes.
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Affiliation(s)
- Muhammad Rizwan
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ghulam Murtaza
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan
| | - Anam Moosa
- Department of Plant Pathology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan
| | - Rashid Iqbal
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan
| | - Zeeshan Ahmed
- Xinjiang Institute of Ecology & Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Urumqi 848300, China
| | - Imran Khan
- School of Physics and Electronics, Central South University, Changsha, Hunan 410083, China
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth WA 6001, Australia.
| | - Lijian Leng
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China; Xiangjiang Laboratory, Changsha 410205, China.
| | - Hailong Li
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China.
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16
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Dad FP, Khan WUD, Sharif F, Nizami AS. Adsorption of trace heavy metals through organic compounds enriched biochar using isotherm adsorption and kinetic models. ENVIRONMENTAL RESEARCH 2024; 241:117702. [PMID: 37980985 DOI: 10.1016/j.envres.2023.117702] [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: 08/28/2023] [Revised: 10/27/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
Trace heavy metals such as copper and nickel, when exceeds a certain level, cause detrimental effects on the ecosystem. The current study examined the potential of organic compounds enriched rice husk biochar (OCEB's) to remove the trace heavy metals from an aqueous solution in four steps. In 1st step, biochar' physical and chemical properties were analyzed through scanning electron microscope (SEM) and Fourier transforms infrared spectroscopy (FTIR). In the 2nd step, two biochar vis-a-vis glycine, alanine enriched biochar (GBC, ABC) was selected based on their adsorption capacity of four different metals Cr, Cu, Ni and Pb (chromium, copper, nickel, and lead). These two adsorbents (GBC, ABC) were further used to evaluate the best interaction of biochar for metal immobilization based on varying concentrations and times. Langmuir isotherm model suggested that the adsorption of Ni and Cu on the adsorbent surface supported the monolayer sorption. The qmax value of GBC for Cu removal increased by 90% compared to SBC (Simple rice husk biochar). The interaction of Cu and Ni with GBC and ABC was chemical, and 10 different time intervals were studied using pseud first and second-order kinetics models. The current study has supported the pseudo second-order kinetic model, which exhibited that the sorption of Ni and Cu occurred due to the chemical processes. The % removal efficiency with GBC was enhanced by 21% and 30% for Cu and Ni, respectively compared to the SBC. It was also noticed that GBC was 21% more efficient for % removal efficiency than the CBC. The study's findings supported that organic compound enriched rice husk biochar (GBC and ABC) is better than SBC for immobilizing the trace heavy metals from an aqueous solution.
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Affiliation(s)
- Fiza Pir Dad
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - Waqas-Ud-Din Khan
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan; Department of Agriculture, Government College University, Lahore, 54000, Pakistan; Tasmanian Institute of Agriculture, University of Tasmania, Australia.
| | - Faiza Sharif
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - Abdul Sattar Nizami
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan.
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17
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P A, S V, G S, M R. Sustainable development and analysis of a novel bio-derived (biochar) nanocomposite for the remediation of carbamazepine from aqueous solution. CHEMOSPHERE 2024; 347:140696. [PMID: 37977531 DOI: 10.1016/j.chemosphere.2023.140696] [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: 07/10/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 11/19/2023]
Abstract
The presence of pharmaceutical compounds in aqueous environments has become a growing concern due to their potential adverse effects on ecosystems and human health. In this work, synthesis of a novel bio based nanocomposite using a biowaste, palm seed is employed for the preparation of biochar. The bio derived nanocomposite consist of polypyrrole (Ppy), graphene oxide (GO), and biochar, is employed for the Carbamazepine (CBZ) removal. The synthesized nanocomposite, Ppy-GO-Biochar, is characterized using various analytical techniques. The characterization results confirmed the successful synthesis of the Ppy-GO-Biochar nanocomposite with the desired morphology and structural properties. The effect of variables is investigated and the optimum conditions are found as: pH (7.8), adsorbent dosage (1.4 g/L), agitation speed (200 rpm) and temperature (39.5 °C). The results demonstrated that a removal efficiency of over 97.74% and uptake of 45.045 mg/g is achieved for CBZ. Furthermore, the CBZ removal followed pseudo-second-order, indicating chemisorption as the predominant mechanism. The CBZ sorption equilibrium is well represented by Langmuir and Freundlich isotherm. Thermodynamic results show that CBZ sorption is endothermic and spontaneous. Mechanism of CBZ sorption using the synthesized nanocomposite follows π-π interaction and electrostatic attraction. Molecular docking studies were also performed for the sorption of CBZ.
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Affiliation(s)
- Agilandeswari P
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, 608002, Tamilnadu, India.
| | - Venkateshbabu S
- Department of Petroleum Engineering, JCT College of Engineering &Technology, Coimbatore, India
| | - Sarojini G
- Department of Food Technology, Dhanalakshmi Srinivasan College of Engineering, Coimbatore, India
| | - Rajasimman M
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, 608002, Tamilnadu, India
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18
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Zhang C, Yang D, Liu W, Dong Y, Zhang L, Lin H. Insight into the impacts of pyrolysis time on adsorption behavior of Pb 2+ and Cd 2+ by Mg modified biochar: Performance and modification mechanism. ENVIRONMENTAL RESEARCH 2023; 239:117215. [PMID: 37813135 DOI: 10.1016/j.envres.2023.117215] [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: 03/16/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/11/2023]
Abstract
Co-pyrolysis biomass and alkaline metals can effectively improve the adsorption performance of heavy metals (HM). Nevertheless, the researchers have ignored the relationship between the change of alkaline metal morphology and adsorption during pyrolysis. In this article, according to control the pyrolysis time (30, 60, and 180 min) synthesized Magnesium (Mg) modified biochar (MBCX) by using MgCl2·6H2O and soybean straw under 400 °C. The sorption capacities of MBC60 and MBC180 for Pb2+/Cd2+ increased by 38.65%/213.29%, 44.57%/230.36%, and the selectivity coefficient of Pb2+/Cd2+ increased by 113.28%/209.49%, 213.58%/253.62%, respectively, compared with MBC30. Additionally, the characterization results demonstrated that MgO dominated the surface phases of MBC60 and MBC180, whereas MgCl2 dominated the surface phases of MBC30. Moreover, according to the results of DFT calculation, the adsorption energy (Eads) of MgO for Pb2+ (-0.537 eV) and Cd2+ (-0.347 eV) was lower than that of MgCl2 (Pb2+: 0.37 eV, Cd2+: -0.185 eV), so that, MBC60 and MBC180 had higher sorption capacities for Pb2+ and Cd2+ than MBC30. Therefore, this work provides a new sight to clear the mechanism for modified biochar by alkali metal oxide and practical and theoretical guidance for adsorbent preparation with high adsorption ability for HMs.
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Affiliation(s)
- Conghui Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Dongsheng Yang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Wei Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yingbo Dong
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Liping Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Hai Lin
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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19
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Hou J, Wan H, Liang K, Cui B, Ma Y, Chen Y, Liu J, Wang Y, Liu X, Zhang J, Wei Z, Liu F. Biochar amendment combined with partial root-zone drying irrigation alleviates salinity stress and improves root morphology and water use efficiency in cotton plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166978. [PMID: 37704141 DOI: 10.1016/j.scitotenv.2023.166978] [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: 06/23/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
An adsorption experiment and a pot experiment were executed in order to explore the mechanisms by which biochar amendment in combination with reduced irrigation affects sodium and potassium uptake, root morphology, water use efficiency, and salinity tolerance of cotton plants. In the adsorption experiment, ten NaCl concentration gradients (0, 50, 100, 150, 200, 250, 300, 350, 400, and 500 mM) were set for testing isotherm adsorption of Na+ by biochar. It was found that the isotherms of Na+ adsorption by wheat straw biochar (WSP) and softwood biochar (SWP) were in accordance with the Langmuir isotherm model, and the Na+ adsorption ability of WSP (55.20 mg g-1) was superior to that of SWP (47.38 mg g-1). The pot experiment consisted three factors, viz., three biochar amendments (no biochar, WSP, and SWP), three irrigation strategies (deficit irrigation, partial root-zone drying irrigation - PRD, full irrigation), and two NaCl concentrations gradients (0 mM and 200 mM). The findings indicated that salinity stress lowered K+ concentration, root length, root surface area, and root volume (RV), but increased Na+ concentration, root average diameter, and root tissue density. However, biochar amendment decreased Na+ concentration, increased K+ concentration, and improved root morphology. In particular, the combination of WSP and PRD increased K+/Na+ ratio, RV, root weight density, root surface area density, water use efficiency, and partial factor productivity under salt stress, which can be a promising strategy to cope with drought and salinity stress in cotton production.
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Affiliation(s)
- Jingxiang Hou
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Heng Wan
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; Soil Physics and Land Management Group, Wageningen University, P.O. Box 47, Wageningen, 6700 AA, Netherlands
| | - Kehao Liang
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark
| | - Bingjing Cui
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yingying Ma
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, Shaanxi 710129, China
| | - Yiting Chen
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark
| | - Jie Liu
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yin Wang
- College of Resources and Environmental Sciences, Jilin Agricultural University, Changchun 130118, Jilin, China
| | - Xuezhi Liu
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Jiarui Zhang
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhenhua Wei
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Fulai Liu
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark.
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20
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Yang R, Feng S, Jin D, Wang Y, Li D, Liang Y, Wu J. Removing DOM from chloride modified hydrochar could improve Cu 2+ adsorption capacity from aqueous solution. CHEMOSPHERE 2023; 342:140202. [PMID: 37722538 DOI: 10.1016/j.chemosphere.2023.140202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
The behavior and composition of hydrochar-based dissolved organic matter (DOM) would affect the efficiency of copper (Cu) removal from wastewater through adsorption. In this study, the reed was hydrolyzed in the presence of feedwater with and without ZnCl2, FeCl3, and SnCl4 to produce pristine hydrochars (PHCs), which were named H2O-HC, ZnCl2-HC, FeCl3-HC, and SnCl4-HC. After removal of DOM, washed hydrochars (WHCs) were obtained, labelled as W-H2O-HC, W-ZnCl2-HC, W-FeCl3-HC, and W-SnCl4-HC. The release dynamics of DOM from PHCs were analyzed, and the adsorption behaviors of Cu2+ on both PHCs and WHCs were investigated. The results showed that chloride-modifications were beneficial for the porosity, specific surface area (SSA), and functional groups of WHCs. Meanwhile, the quantity of hydrochar-based DOM was significantly affected by chloride-modifications. In particular, the relative contents of Ar-P and Fa-L in the DOM released from hydrochars varied with time and modification. Furthermore, the Qe of Cu2+ adsorption on WHCs followed the order of W-SnCl4-HC > W-FeCl3-HC > W-ZnCl2-HC > W-H2O-HC at 15 °C. Compared to PHCs, the adsorption capacity of Cu2+ on WHCs was improved by 7.15-119.77% at the temperature of 35 °C. Simultaneously, the adsorption capacity of Cu2+ in WHCs showed a significant correlation with the SSA via physical adsorption (P < 0.05). Moreover, XPS analysis revealed that Cu2+ adsorption also occurred via complexation and chelation through newly formed Cu-O group between W-SnCl4-HC and Cu2+. Notably, the increase of Cu2+ adsorption in WHCs was significantly correlated with the release of Fa-L and Ar-P from PHCs (P < 0.05). This study found that the content and composition of hydrochar-based DOM could be a major driving factor for Cu2+ adsorption.
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Affiliation(s)
- Rushi Yang
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, China; School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Shi Feng
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Danyu Jin
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, China
| | - Yulai Wang
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, China
| | - Detian Li
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Yunyi Liang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Jing Wu
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, China.
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21
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Li B, Li K. Efficient removal of both heavy metal ion and dyes from wastewater using magnetic response adsorbent of block polymer brush-grafted N-doped biochar. CHEMOSPHERE 2023; 340:139811. [PMID: 37586497 DOI: 10.1016/j.chemosphere.2023.139811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
The recovery of biomass from agricultural and forestry waste could realize effective utilization of waste and synthesis of novel adsorbent. Herein, porous biochar was prepared from waste ginkgo biloba leaves and modified by Reversible Addition-Fragmentation Chain Transfer Polymerization (RAFT). And the prepared adsorbent exhibited excellent adsorption capacity owing to its abundant functional groups and porous structure. In addition, the adsorption capacities of the prepared adsorbent for Malachite Green (MG), Amaranth (AM) and Cr (Ⅵ) were 422.59, 373.75 and 368.82 mg/g, respectively, surpassing those of many previously reported materials. Subsequently, the influence of various factors on adsorption performance was studied. The results showed that adsorption of MG, AM and Cr (Ⅵ) on adsorbent followed pseudo-second-order and Langmuir models and the adsorbent also displayed excellent cycling performance. The experimental results of application in various water samples showed that the adsorbent had outstanding adsorption performance in real water samples, further proving that the adsorbent had wide application and practicability. Finally, a simple adsorption column was used for filtration experiments to simulate industrial application. The results were exhibited that the adsorbent had great potential in treating wastewater containing MG, AM and Cr (Ⅵ).
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Affiliation(s)
- Baidan Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China
| | - Keran Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610500, PR China.
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22
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Yang J, Wei Q, Tian C, Li D, Li H, Qin G, Hu K, Zhang Q. Preparation of Biomass Carbon Composites MgO@ZnO@BC and Its Adsorption and Removal of Cu(II) and Pb(II) in Wastewater. Molecules 2023; 28:6982. [PMID: 37836824 PMCID: PMC10574083 DOI: 10.3390/molecules28196982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/09/2023] [Accepted: 08/22/2023] [Indexed: 10/15/2023] Open
Abstract
The ternary composite MgO@ZnO@BC was synthesized and characterized for the adsorption of Cu2+, Pb2+ heavy metal ions from wastewater. The results show that the addition of the MgO@ZnO@BC composite results in higher adsorption properties for Cu2+ and Pb2+, with a molar ratio of 5% 0.1 g, and maximum adsorption capacity (50.63 mg/g for Cu2+ and 61.46 mg/g for Pb2+). The Langmuir adsorption isotherm of the adsorption complex and the kinetics of adsorption are secondary kinetics. The adsorption of Cu2+ and Pb2+ was mainly chemisorption, accompanied by physical adsorption. This adsorption method fully conforms to the concepts of clean production and efficient waste utilization, providing a reference for the removal of heavy metal ions from wastewater and waste recycling using ternary composite materials.
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Affiliation(s)
- Jie Yang
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, University of Science and Technology of China, Hefei 230026, China
| | - Qing Wei
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Changan Tian
- School of Chemistry and Civil Engineering, Shaoguan University, Shaoguan 512005, China
| | - Dong Li
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Hongming Li
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Guangchao Qin
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Kunhong Hu
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Qinyan Zhang
- Hefei Rantian Instrument Co., Ltd., Hefei 230031, China
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23
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Chormare R, Moradeeya PG, Sahoo TP, Seenuvasan M, Baskar G, Saravaia HT, Kumar MA. Conversion of solid wastes and natural biomass for deciphering the valorization of biochar in pollution abatement: A review on the thermo-chemical processes. CHEMOSPHERE 2023; 339:139760. [PMID: 37567272 DOI: 10.1016/j.chemosphere.2023.139760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/14/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023]
Abstract
This overview addresses the formation of solid trash and the various forms of waste from a variety of industries, which environmentalists have embraced. The paper investigates the negative effects on the environment caused by unsustainable management of municipal solid trash as well as the opportunities presented by the formal system. This examination looks at the origins of solid waste as well as the typical treatment methods. Pyrolysis methods, feedstock pyrolysis, and lignocellulosic biomass pyrolysis were highlighted. Explain in detail the various thermochemical processes that take place during the pyrolysis of biomass. Due to its carbon content, low cost, accessibility, ubiquitousness, renewable nature, and environmental friendliness, biomass waste is a unique biochar precursor. This study looks at the different types of biomass waste that are available for treating wastewater. This study discussed a wide variety of reactors. Adsorption is the standard method that is used the most frequently to remove hazardous organic, dye, and inorganic pollutants from wastewater. These pollutants cause damage to the environment and water supplies, thus it is important to remove them. Adsorption is both simple and inexpensive to utilize. Temperature-dependent conversions explain the kinetic theories of biomaterial biochemical degradation. This article presents a review that explains how pyrolytic breakdown char materials can be used to reduce pollution and improve environmental management.
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Affiliation(s)
- Rishikesh Chormare
- Process Design and Engineering Cell, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364 002, Gujarat, India; Academy of Scientific and Innovative Research, Ghaziabad, 201 002, Uttar Pradesh, India
| | - Pareshkumar G Moradeeya
- Department of Environmental Science and Engineering, Marwadi University, Rajkot, 360 003, Gujarat, India
| | - Tarini Prasad Sahoo
- Academy of Scientific and Innovative Research, Ghaziabad, 201 002, Uttar Pradesh, India; Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364 002, Gujarat, India
| | - Muthulingam Seenuvasan
- Department of Chemical Engineering, Hindusthan College of Engineering and Technology, Coimbatore, 641 032, Tamil Nadu, India
| | - Gurunathan Baskar
- Department of Biotechnology, St. Joseph's College of Engineering, Chennai, 600 119, Tamil Nadu, India
| | - Hitesh T Saravaia
- Academy of Scientific and Innovative Research, Ghaziabad, 201 002, Uttar Pradesh, India; Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364 002, Gujarat, India.
| | - Madhava Anil Kumar
- Centre for Rural and Entrepreneurship Development, National Institute of Technical Teachers Training and Research, Chennai, 600 113, Tamil Nadu, India.
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24
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Elamin NY, Abd El-Fattah W, Modwi A. In situ fabrication of green CoFe2O4 loaded on g-C3N4 nanosheets for Cu (II) decontamination. INORG CHEM COMMUN 2023; 156:111184. [DOI: 10.1016/j.inoche.2023.111184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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25
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ŞAHİN M, ATASOY M, ARSLAN Y, YILDIZ D. Removal of Ni(II), Cu(II), Pb(II), and Cd(II) from Aqueous Phases by Silver Nanoparticles and Magnetic Nanoparticles/Nanocomposites. ACS OMEGA 2023; 8:34834-34843. [PMID: 37779946 PMCID: PMC10536035 DOI: 10.1021/acsomega.3c04054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/28/2023] [Indexed: 10/03/2023]
Abstract
The intake of heavy metals into the body, even at very low concentrations, may cause a decrease in central nervous system functions; deterioration of blood composition; and liver, kidney, and lung damage. Therefore, heavy metal ions must be removed from water. In this study, silver, magnetic iron/copper, and iron oxide nanoparticles were synthesized using Lathyrus brachypterus extract and then Fe/Cu-AT, Fe3O4-AT, Fe/Cu-CS, and Fe3O4-CS magnetic nanocomposite beads were synthesized using alginate and chitosan. The removal of Cd(II), Pb(II), Ni(II), and Cu(II) ions from aqueous phases using synthesized nanoadsorbents was investigated by single and competitive (double and quaternary) adsorption techniques. The kinetic usability of the magnetic iron oxide chitosan (Fe3O4-CS) nanocomposite beads with the highest removal efficiency was evaluated. Based on experimental results, the order of removal was found to be 98.39, 75.52, 51.54, and 45.34%, and it was listed as Pb(II) > Cu(II) > Cd(II) > Ni(II), respectively. The Dubinin-Radushkevich, Freundlich, Langmuir, and Temkin isotherm models were used, and experimental results revealed that the experimental data fit the Langmuir model better. The maximum adsorption capacities (qm) obtained from the Langmuir isotherm model of Fe3O4-CS were found to be 8.71, 23.75, 18.57, and 12.38 mg/g for Ni(II), Pb(II), Cu(II), and Cd(II) ions, respectively. When the kinetic data were applied to the Lagergren, Ho-McKay, and Elovich models, it was observed that the adsorption kinetics mostly conformed to the Ho-McKay second-order rate equation. The binary and quaternary competitive adsorption data showed that Fe3O4-CS were selective toward Cu(II) and Pb(II). The reusability of the Fe3O4-CS nanoadsorbent was performed as three cycles with the same concentration. The adsorption capacities were found to be 95.81, 70.65, 50.50, and 42.75%, in turn for Pb(II), Cu(II), Cd(II), and Ni(II) ions after three cycles, which revealed that the Fe3O4-CS nanoadsorbent can be used after three cycles without losing its efficiency.
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Affiliation(s)
- Muradiye ŞAHİN
- Kırşehir
Ahi Evran University, Campus, Kırşehir 40100, Turkey
| | - Muhammet ATASOY
- Muğla
Vocational School, Chemistry and Chemical Treatment Technologies Department,
Chemistry Technology Program, Muğla
Sıtkı Koçman University, Muğla 48000, Turkey
| | - Yasin ARSLAN
- Faculty
of Arts and Science, Nanoscience and Nanotechnology Department, Burdur Mehmet Akif Ersoy University, Burdur 15000, Turkey
| | - Dilek YILDIZ
- Environmental
Problems Research and Application Center, Muğla Sıtkı Kocçman University, Muğla 48000, Turkey
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26
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Wang X, Wang J, Jiang L, Jiang Y. Adsorption of Pb 2+ and Cu 2+ in wastewater by lignosulfonate adsorbent prepared from corn straw. Int J Biol Macromol 2023; 247:125820. [PMID: 37451377 DOI: 10.1016/j.ijbiomac.2023.125820] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/18/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
The heavy metal ions contained in industrial wastewater are a great threat to human health. Exploring a adsorbent which have low-cost, green environmental friendly, high adsorption capacity, good recycle is key to solve heavy metal ions pollution. Lignin sulfonate was obtained by treating corn stover, and then modified lignin sulfonate was obtained by hydrothermal method. The porous structure makes heavy metal ions occupy more internal adsorption sites. Modified lignosulfonate adsorbent efficiency removes heavy metals in wastewater especially Cu2+ and Pb2+. The adsorption capacity of Cu2+ on modified lignosulfonate is 450.3 mg g-1, Pb2+ is 475.4 mg g-1. In addition, for 40 mg L-1 Cu2+ and Pb2+ using 0.4 g L-1, the adsorption equilibrium is only reached within 60 min. Meanwhile, the removal ratio of Pb is 83 %, Cd is 72 %, Cu is 87 %, Zn is 36 %, Mn is 25 %, Cr is 95 %, and Fe is 99 % in wastewater using 0.4 g L-1 adsorbent in 2 h. This research develops a practical adsorbent to remove heavy metals from actual wastewater.
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Affiliation(s)
- Xiang Wang
- College of Environmental and Chemical Engineering, Chongqing Three Gorges University, Wanzhou, 404100 Chongqing, China.
| | - Jiwei Wang
- Chongqing Wanzhou Sanfeng Environmental Protection Power Generation Co., LTD, Wanzhou, 404100 Chongqing, China
| | - Landong Jiang
- College of Environmental and Chemical Engineering, Chongqing Three Gorges University, Wanzhou, 404100 Chongqing, China
| | - Yibo Jiang
- College of Environmental and Chemical Engineering, Chongqing Three Gorges University, Wanzhou, 404100 Chongqing, China
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27
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Tian L, Shi Y, Song Y, Guan H, Li Y, Xu R. Dual Signal-Enhanced Electrochemiluminescence Strategy Based on Functionalized Biochar for Detecting Aflatoxin B1. BIOSENSORS 2023; 13:846. [PMID: 37754080 PMCID: PMC10526187 DOI: 10.3390/bios13090846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/19/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023]
Abstract
Metal-organic frameworks (MOFs) are often used as carriers in the preparation of electrochemiluminescent (ECL) materials, and ECL materials stabilized in the aqueous phase can be prepared by encapsulating chromophores inside MOFs by an in situ growth method. In this study, nanocomposites MIL-88B(Fe)-NH2@Ru(py)32+ with excellent ECL response were prepared by encapsulating Tris(2,2'-bipyridine)ruthenium dichloride (Ru(py)32+) inside MIL-88B(Fe)-NH2 using the one-step hydrothermal method. MIL-88B(Fe)-NH2 possesses abundant amino groups, which can accelerate the catalytic activation process of K2S2O8, and its abundant pores are also conducive to the enhancement of the transmission rate of co-reactant agents, ions, and electrons, which effectively improves the ECL efficiency. In order to obtain more excellent ECL signals, we prepared aminated biochar (NH2-biochar) using Pu-erh tea dregs as precursor and loaded gold nanoparticles (Au NPs) on its surface as substrate material for modified electrodes. Both NH2-biochar and Au NPs can also be used as a co-reactant promoter to catalyze the activation process of co-reactant K2S2O8. Therefore, a sandwich-type ECL immunosensor was prepared based on a dual signal-enhanced strategy for the highly sensitive and selective detection of aflatoxin B1 (AFB1). Under the optimal experimental conditions, the sensitive detection of AFB1 was achieved in the range of 1 pg·mL-1~100 ng·mL-1 with a detection limit of 209 fg·mL-1. The proposed dual signal-enhanced ECL immunosensor can provide a simple, convenient, and efficient method for the sensitive detection of AFB1 in food and agricultural products.
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Affiliation(s)
- Lin Tian
- Provincial Key Laboratory of Rural Energy Engineering in Yunnan, Yunnan Normal University, Kunming 650500, China;
| | - Yuying Shi
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China; (Y.S.); (Y.S.); (H.G.)
| | - Yanan Song
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China; (Y.S.); (Y.S.); (H.G.)
| | - Huilin Guan
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China; (Y.S.); (Y.S.); (H.G.)
- Yunnan Provincial Observation and Research Station of Soil Degradation and Restoration for Cultivating Plateau Traditional Chinese Medicinal Plants, Yunnan Normal University, Kunming 650500, China
| | - Yunxiao Li
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China; (Y.S.); (Y.S.); (H.G.)
| | - Rui Xu
- Provincial Key Laboratory of Rural Energy Engineering in Yunnan, Yunnan Normal University, Kunming 650500, China;
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China; (Y.S.); (Y.S.); (H.G.)
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28
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Chen W, Xie H, Jiang N, Guo X, Liu Z. Synthesis of magnetic sodium lignosulfonate hydrogel(Fe 3O 4@LS) and its adsorption behavior for Cd 2+ in wastewater. Int J Biol Macromol 2023; 245:125498. [PMID: 37356695 DOI: 10.1016/j.ijbiomac.2023.125498] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 06/27/2023]
Abstract
Heavy metal pollution is becoming increasingly serious. Heavy metal pollutants are nonbiodegradable and can be bioenriched through the food chain, and thus, they greatly threaten the environment and human health. Hydrogels, as an ideal adsorbent, have been widely used to treat heavy metal industrial wastewater. Sodium lignosulfonate hydrogel (LS) was prepared by free-radical grafting copolymerization, and nano-Fe3O4 particles were loaded in LS by an in-situ precipitation method (Fe3O4@LS). The magnetic properties and adsorption capacity of Fe3O4@LS are closely related to the load capacity of Fe3O4. XRD, FTIR, XPS, SEM, TEM, BET, and TGA analyses of the materials were performed. Subsequently, the removal effect of the typical pollutant Cd2+ in heavy metal-polluted water was studied with Fe3O4@LS as the adsorbent. The influences of the Fe3O4@LS dosage and initial pH were investigated, and the adsorption kinetics and thermodynamics were further explored and discussed. Finally, the adsorption mechanism of Fe3O4@LS on Cd2+ was obtained. Results show that Fe3O4@LS has a more stable spatial network structure than LS, and the pore size, specific surface area and active sites increase. The maximum adsorption capacity can reach 88.00 mg/g when pH = 6 and the dosage of Fe3O4@LS is 1000 mg/L. The adsorption of Cd2+ by Fe3O4@LS conforms to pseudosecond-order kinetics and the Temkin isothermal adsorption model. Further mechanistic investigations show that the sorption of Cd2+ on Fe3O4@LS is mainly attributed to surface complexation, electrostatic attraction and coprecipitation. The coexistence of cations in water will inhibit the adsorption of Fe3O4@LS. Fe3O4@LS has superparamagnetism and a good response to an external magnetic field. The adsorption rate can still reach >60 % after four elutions with NaCl as the eluent. This material can be reused and has good application potential.
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Affiliation(s)
- Wu Chen
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, People's Republic of China; HSE Key Laboratory of Petro China Company Limited (Yangtze University), Jingzhou 434023, People's Republic of China
| | - Huijia Xie
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, People's Republic of China; HSE Key Laboratory of Petro China Company Limited (Yangtze University), Jingzhou 434023, People's Republic of China.
| | - Nan Jiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, People's Republic of China; HSE Key Laboratory of Petro China Company Limited (Yangtze University), Jingzhou 434023, People's Republic of China
| | - Xianzhe Guo
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, People's Republic of China; HSE Key Laboratory of Petro China Company Limited (Yangtze University), Jingzhou 434023, People's Republic of China
| | - Zhuozhuang Liu
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, People's Republic of China; HSE Key Laboratory of Petro China Company Limited (Yangtze University), Jingzhou 434023, People's Republic of China
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Hama Aziz KH, Mustafa FS, Omer KM, Hama S, Hamarawf RF, Rahman KO. Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review. RSC Adv 2023; 13:17595-17610. [PMID: 37312989 PMCID: PMC10258679 DOI: 10.1039/d3ra00723e] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/02/2023] [Indexed: 06/15/2023] Open
Abstract
Heavy metal contamination of water sources has emerged as a major global environmental concern, threatening both aquatic ecosystems and human health. Heavy metal pollution in the aquatic environment is on the rise due to industrialization, climate change, and urbanization. Sources of pollution include mining waste, landfill leachates, municipal and industrial wastewater, urban runoff, and natural phenomena such as volcanic eruptions, weathering, and rock abrasion. Heavy metal ions are toxic, potentially carcinogenic, and can bioaccumulate in biological systems. Heavy metals can cause harm to various organs, including the neurological system, liver, lungs, kidneys, stomach, skin, and reproductive systems, even at low exposure levels. Efforts to find efficient methods to remove heavy metals from wastewater have increased in recent years. Although some approaches can effectively remove heavy metal contaminants, their high preparation and usage costs may limit their practical applications. Many review articles have been published on the toxicity and treatment methods for removing heavy metals from wastewater. This review focuses on the main sources of heavy metal pollution, their biological and chemical transformation, toxicological impacts on the environment, and harmful effects on the ecosystem. It also examines recent advances in cost-effective and efficient techniques for removing heavy metals from wastewater, such as physicochemical adsorption using biochar and natural zeolite ion exchangers, as well as decomposition of heavy metal complexes through advanced oxidation processes (AOPs). Finally, the advantages, practical applications, and future potential of these techniques are discussed, along with any challenges and limitations that must be considered.
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Affiliation(s)
- Kosar Hikmat Hama Aziz
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- Medical Laboratory Analysis Department, College of health sciences, Cihan University-Sulaimaniya Sulaimaniya 46001 Kurdistan region Iraq
| | - Fryad S Mustafa
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Khalid M Omer
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Sarkawt Hama
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Rebaz Fayaq Hamarawf
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Kaiwan Othman Rahman
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- Razga Company Sulaimani City 46001 Kurdistan Region Iraq
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30
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Bian P, Shao Q. Performance and Mechanism of Functionalized Water Hyacinth Biochar for Adsorption and Removal of Benzotriazole and Lead in Water. Int J Mol Sci 2023; 24:ijms24108936. [PMID: 37240279 DOI: 10.3390/ijms24108936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/07/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
In this paper, water hyacinth is used to prepare biochar (WBC). A biochar-aluminum-zinc-layered double hydroxide composite functional material (WL) is synthesized via a simple co-precipitation method which is used to adsorb and remove benzotriazole (BTA) and lead (Pb2+) in an aqueous solution. In particular, this research paper uses various characterization methods to analyze WL and to explore the adsorption performance and adsorption mechanism of WL on BTA and Pb2+ in an aqueous solution through batch adsorption experiments combined with model fitting and spectroscopy techniques. The results indicate that the surface of WL contains a thick sheet-like structure with many wrinkles which would provide many adsorption sites for pollutants. At room temperature (25 °C), the maximum adsorption capacities of WL on BTA and Pb2+ are 248.44 mg·g-1 and 227.13 mg·g-1, respectively. In a binary system, during the process of using WL to adsorb BTA and Pb2+, compared with that in the absorption on Pb2+, WL shows a stronger affinity in the adsorption on BTA, and BTA would thus be preferred in the absorption process. The adsorption process of WL on BTA and Pb2+ is spontaneous and is endothermic monolayer chemisorption. In addition, the adsorption of WL on BTA and Pb2+ involves many mechanisms, but the main adsorption mechanisms are different. Among them, hydrogen bonding dominates the adsorption on BTA, while functional groups (C-O and C=O) complexation dominates the adsorption on Pb2+. When WL adsorbs BTA and Pb2+, the coexistence of cations (K+, Na+, and Ca2+) has a strong anti-interference ability, and WL can use a lower concentration of fulvic acid (FA) (<20 mg·L-1) to improve its adsorption performance. Last but not least, WL has a stable regenerative performance in a one-component system and a binary system, which indicates that WL has excellent potential for the remediation of BTA and Pb2+ in water.
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Affiliation(s)
- Pengyang Bian
- College of Natural Resources and Environment, Northwest A&F University, Xianyang 712100, China
| | - Qinqin Shao
- School of Physics and Electronic Engineering, Zhengzhou Normal University, Zhengzhou 450044, China
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31
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Xiao M, Lai X, He J, Huang J, Tang Z, Wu R, Jian J. Highly efficient removal of aqueous Hg(II) by FeS micro-flakes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 870:162013. [PMID: 36737015 DOI: 10.1016/j.scitotenv.2023.162013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/05/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
FeS (mackinawite) is known to be effective in the sorption of aqueous Hg(II). However, FeS nanoparticles are apt to aggregate and easy to be oxidized, which limits their wide applications. Here, we have synthesized FeS micro-flakes which can be uniformly dispersed in water without aggregation. Owing to the good stability and dispersibility, FeS micro-flakes exhibit high efficiency in the removal of Hg(II) from water. The sorption of Hg(II) on the FeS micro-flakes is more consistent with the pseudo-second-order kinetic model and Langmuir model, indicating that the sorption of Hg(II) is mainly monolayer sorption dominated by chemical sorption. The maximum sorption capacity is 2680 mg/g at pH 5.6 and 30 °C, significantly higher than those of FeS nanoparticles and other Hg(II) scavengers. The pH studies indicate that FeS (0.31 g/L) can effectively remove >97.6 % of 200 mg/L Hg(II) in the pH range of 2-12 at 30 °C. Powder X-ray diffraction, elemental and sorption analyses suggest that Hg(II) is removed via chemical precipitation and surface adsorption. This study demonstrates the potential and viability of FeS micro-flakes for efficient removal of aqueous Hg(II).
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Affiliation(s)
- Mingling Xiao
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaofang Lai
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jun He
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiahao Huang
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhenhua Tang
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Ruiwen Wu
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Jikang Jian
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.
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32
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Ramírez-Hernández M, Norambuena J, Hu H, Thomas B, Tang C, Boyd JM, Asefa T. Repurposing Anthelmintics: Rafoxanide- and Copper-Functionalized SBA-15 Carriers against Methicillin-Resistant Staphylococcus aureus. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17459-17469. [PMID: 36975176 DOI: 10.1021/acsami.2c19899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The development of materials that can more efficiently administer antimicrobial agents in a controlled manner is urgently needed due to the rise in microbial resistance to traditional antibiotics. While new classes of antibiotics are developed and put into widespread usage, existing, inexpensive compounds can be repurposed to fight bacterial infections. Here, we present the synthesis of amine-functionalized SBA-15 mesoporous silica nanomaterials with physisorbed rafoxanide (RFX), a commonly used salicylanilide anthelmintic, and anchored Cu(II) ions that exhibit enhanced antimicrobial efficacy against the pathogenic bacterium Staphylococcus aureus. The synthesized nanomaterials are structurally characterized by a combination of physicochemical, thermal, and optical methods. Additionally, release studies are carried out in vitro to determine the effects of pH and the synthetic sequence used to produce the materials on Cu(II) ion release. Our results indicate that SBA-15 mesoporous silica nanocarriers loaded with Cu(II) and RFX exhibit 10 times as much bactericidal action against wild-type S. aureus as the nanocarrier loaded with only RFX. Furthermore, the synthetic sequence used to produce the nanomaterials could significantly affect (enhance) their bactericidal efficacy.
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Affiliation(s)
- Maricely Ramírez-Hernández
- Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - Javiera Norambuena
- Department of Biochemistry and Microbiology, Rutgers, The State University of New Jersey, 76 Lipman Drive, New Brunswick, New Jersey 08901, United States
| | - Hongnan Hu
- Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - Belvin Thomas
- Department of Chemistry and Chemical Biology Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Chaoyun Tang
- Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
- Department of Chemistry and Chemical Biology Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Hoffman Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Shenzhen 518060, China
| | - Jeffrey M Boyd
- Department of Biochemistry and Microbiology, Rutgers, The State University of New Jersey, 76 Lipman Drive, New Brunswick, New Jersey 08901, United States
| | - Tewodros Asefa
- Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
- Department of Chemistry and Chemical Biology Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
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33
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Lin H, Yang D, Zhang C, Liu W, Zhang L, Dong Y. Selective removal behavior of lead and cadmium from calcium-rich solution by MgO loaded soybean straw biochars and mechanism analysis. CHEMOSPHERE 2023; 319:138010. [PMID: 36731666 DOI: 10.1016/j.chemosphere.2023.138010] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 01/20/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Modified biochars has great potential for removing heavy metals from aquatic environments, but the removal of heavy metals by biochars is usually significantly affected by the co-presence of the macro amount of metal ions, such as Ca. Enhancing the ion exchange capacity of biochar by increasing its alkali metal content is a very prospective method to improve its selectivity. In this paper, MgO loaded biochar (MBC) was synthesized by co-pyrolysis of soybean straw and MgCl2·6H2O for selective remove Pb and Cd from calcium-rich wastewater. MBC exhibited excellent selective adsorption performance for Pb and Cd in calcium-rich wastewater due to the successful loading of MgO. The adsorption capacities of MBC for Pb and Cd were 582.57 and 167.40 mg/g, and the removal efficiency of Ca below 2.5% with an initial concentration of 800 mg/L. The ion exchange capacities of Pb and Cd enhanced almost 27 and 23 times than BC. By analyzing the results of BET, XRD, SEM-EDS, XPS and FTIR, the adsorption mechanisms of MBC were mainly including ion exchange, precipitation with minerals, and interaction with oxygen-containing functional groups. The easy preparation method and high selective adsorption capacity makes MBC an ideal alternative for efficiently selective removal Pb and Cd from calcium-rich wastewater.
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Affiliation(s)
- Hai Lin
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Dongsheng Yang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Conghui Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Wei Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Liping Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Yingbo Dong
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China.
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34
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Siddika A, Islam MM, Parveen Z, Hossain MF. Remediation of Chromium (VI) from Contaminated Agricultural Soil Using Modified Biochars. ENVIRONMENTAL MANAGEMENT 2023; 71:809-820. [PMID: 36289071 DOI: 10.1007/s00267-022-01731-7] [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: 02/11/2022] [Accepted: 09/27/2022] [Indexed: 05/08/2023]
Abstract
Chromium (Cr) is a potentially toxic metal occurring in the soil as a result of natural and anthropogenic activities and is mainly found in Cr3+ and Cr6+. The hexavalent chromium has toxic effects on plants, animals, humans and microorganisms depending on exposure level, duration and doses. Biochar is a stable carbon-based material that has been widely documented to immobilize metals in contaminated soils and for soil remediation effectively. The present 90 days incubation study was conducted to investigate the potential use of rice stubble and sawdust-derived modified biochars on Cr6+ remediation and their effects on nutrient availability. Among the treatments, modified rice stubble biochar (RSB-M) contained the highest surface area, pore volume and CEC. The unmodified and modified biochars significantly increased soil pH, EC, CEC, and N, K availability ((p < 0.001)). Statistical analysis showed that modified rice stubble (RSB-M) and sawdust biochars (SDB-M) significantly reduced the Cr6+ with incubation days compared to unmodified biochars, possibly due to the greater porous structure and various functional groups. The submerged incubation condition also greatly impacted Cr6+ reduction since a gradual decrease (up to ~70 mg kg-1 of Cr6+) was observed in control treatments. Therefore, applying modified biochars is imperative to alleviate Cr6+ polluted soils and improve soil fertility.
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Affiliation(s)
- Asha Siddika
- Department of Soil, Water and Environment, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Md Mahfuz Islam
- Department of Soil, Water and Environment, University of Dhaka, Dhaka, 1000, Bangladesh.
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, 27695, USA.
| | - Zakia Parveen
- Department of Soil, Water and Environment, University of Dhaka, Dhaka, 1000, Bangladesh
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35
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Li Z, Zheng Z, Li H, Xu D, Li X, Xiang L, Tu S. Review on Rice Husk Biochar as an Adsorbent for Soil and Water Remediation. PLANTS (BASEL, SWITZERLAND) 2023; 12:1524. [PMID: 37050150 PMCID: PMC10096505 DOI: 10.3390/plants12071524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
Rice husk biochar (RHB) is a low-cost and renewable resource that has been found to be highly effective for the remediation of water and soil environments. Its yield, structure, composition, and physicochemical properties can be modified by changing the parameters of the preparation process, such as the heating rate, pyrolysis temperature, and carrier gas flow rate. Additionally, its specific surface area and functional groups can be modified through physical, chemical, and biological means. Compared to biochar from other feedstocks, RHB performs poorly in solutions with coexisting metal, but can be modified for improved adsorption. In contaminated soils, RHB has been found to be effective in adsorbing heavy metals and organic matter, as well as reducing pollutant availability and enhancing crop growth by regulating soil properties and releasing beneficial elements. However, its effectiveness in complex environments remains uncertain, and further research is needed to fully understand its mechanisms and effectiveness in environmental remediation.
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Affiliation(s)
- Zheyong Li
- Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430072, China; (Z.L.)
- State Key Laboratory of Soil Health Diagnosis and Green Remediation for Environmental Protection, Wuhan 430072, China
| | - Zhiwei Zheng
- Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430072, China; (Z.L.)
- State Key Laboratory of Soil Health Diagnosis and Green Remediation for Environmental Protection, Wuhan 430072, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Hongcheng Li
- Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430072, China; (Z.L.)
- State Key Laboratory of Soil Health Diagnosis and Green Remediation for Environmental Protection, Wuhan 430072, China
| | - Dong Xu
- Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430072, China; (Z.L.)
- State Key Laboratory of Soil Health Diagnosis and Green Remediation for Environmental Protection, Wuhan 430072, China
| | - Xing Li
- Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430072, China; (Z.L.)
- State Key Laboratory of Soil Health Diagnosis and Green Remediation for Environmental Protection, Wuhan 430072, China
| | - Luojing Xiang
- Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430072, China; (Z.L.)
- State Key Laboratory of Soil Health Diagnosis and Green Remediation for Environmental Protection, Wuhan 430072, China
| | - Shuxin Tu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Research Centre for Environment Pollution and Remediation, Wuhan 430070, China
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36
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Zhu GS, Zheng JY, Bao Han C, Zhang H, Chang P, Kang Zhao W, He J, Xia Y, Song X, Yan H. Amino groups modified MnO
x
‐PUF applied in indoor air purification: removing formaldehyde at room temperature. ChemistrySelect 2023. [DOI: 10.1002/slct.202204060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Guang Shuo Zhu
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Jia Yu Zheng
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Chang Bao Han
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Hao Zhang
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Peiyu Chang
- Beijing University of traditional Chinese medicine No. 11, Beisanhuan East Road, Chaoyang District Beijing 100029
| | - Wen Kang Zhao
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Junda He
- Key laboratory of Beijing on Regional Air Pollution Control Beijing University of Technology Beijing 100124 People's Republic of China
| | - Yi Xia
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Xuemei Song
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
| | - Hui Yan
- The Key Laboratory of Advanced Functional Materials Ministry of Education of China Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 People's Republic of China
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37
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Zhengfeng S, Ming C, Geming W, Quanrong D, Shenggao W, Yuan G. Synthesis, characterization and removal performance of Cr (Ⅵ) by orange peel-based activated porous biochar from water. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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38
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Na4P2O7-Modified Biochar Derived from Sewage Sludge: Effective Cu(II)-Adsorption Removal from Aqueous Solution. ADSORPT SCI TECHNOL 2023. [DOI: 10.1155/2023/8217910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
With the rapid development of industrialization, the amount of copper-containing wastewater is increasing, thereby posing a threat to the aquatic ecological environment and human health. Sludge biochar has received extensive concern in recent years due to its advantages of low cost and sustainability for the treatment of heavy-metal-containing wastewater. However, the heavy-metal-adsorption capacity of sludge biochar is limited. This study prepared a sodium pyrophosphate- (Na4P2O7-) modified municipal sludge-based biochar (SP-SBC) and evaluated its adsorption performance for Cu(II). Results showed that SP-SBC had higher yield, ash content, pH, Na and P content, and surface roughness than original sewage sludge biochar (SBC). The Cu(II)-adsorption capacity of SP-SBC was 4.55 times than that of SBC at room temperature. For Cu(II) adsorption by SP-SBC, the kinetics and isotherms conformed to the pseudo-second-order model and the Langmuir–Freundlich model, respectively. The maximum adsorption capacity of SP-SBC was 38.49 mg·g−1 at 35°C. Cu(II) adsorption by SP-SBC primarily involved ion exchange, electrostatic attraction, and precipitation. The desired adsorption performance for Cu(II) in the fixed-bed column experiment indicated that SP-SBC can be reused and had good application potential to treat copper-containing wastewater. Overall, this study provided a desirable sorbent (SP-SBC) for Cu(II) removal, as well as a new simple chemical-modification method for SBC to enhance Cu(II)-adsorption capacity.
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Yang F, Lv J, Zhou Y, Wu S, Sima J. Co-pyrolysis of biomass and phosphate tailing to produce potential phosphorus-rich biochar: efficient removal of heavy metals and the underlying mechanisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:17804-17816. [PMID: 36203042 DOI: 10.1007/s11356-022-23128-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Application of biochar to treat heavy metal polluted wastewater has received increasing attention; however, the immobilization ability of pristine biochar for metal ions is still limited. In this study, phosphate tailing was co-pyrolyzed with sawdust and peanut shell to acquire phosphorus-rich biochars with high removal rates for Cd, Zn, Pb, and Cu. Meanwhile, the improvement mechanisms by phosphate tailing were clarified by XRD, FTIR, SEM-EDS, BET-N2, and model fitting. Results showed that after phosphate tailing impregnation, surface area of sawdust, and peanut shell biochars increased from to 11.6 m2 g-1, and from 43.5 to 53.4 m2 g-1, respectively. Functional groups of -COOH and CO32- on biochar increased and the P2O74- newly generated. Besides, large amounts of Ca(PO3)2 and Ca2P2O7 crystals were detected in biochar ash. As for sawdust biochar, loading of phosphate tailing raised the sorption rates of Cd, Zn, Pb, and Cu by 0.35, 0.61, 1.10, and 2.64 times, respectively, as for peanut shell biochar, it was raised by 0.12, 0.47, 0.11, and 1.98 times, respectively. The sorption isotherms by phosphate tailing-loaded biochars were better fitted to Langmuir (R2 = 0.85-1.00) than Freundlich model (R2 = 0.58-0.91). Heavy metals could bind with -OH and -COOH on phosphate tailing-loaded biochars, meanwhile generated phosphorus-rich precipitation with PO3- and P2O74+, including Cd2P2O7, Cd(PO3)2, Zn (PO3)2, Pb (PO3)2, Pb2P2O7, Cu(PO3)2, and Cu2P2O7. This study proposed an innovative method to produce phosphorus-rich biochars by loading phosphate tailing for highly efficient removal of heavy metals from water bodies, and also realized the resource utilization of phosphate tailing, which was of great significance to reduce environmental pollution.
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Affiliation(s)
- Fan Yang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Junfan Lv
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yingying Zhou
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Shuang Wu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jingke Sima
- State Environmental Protection Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China.
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40
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Quan C, Zhou Y, Wang J, Wu C, Gao N. Biomass-based carbon materials for CO2 capture: A review. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2022.102373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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41
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Bamboo Nanocellulose/Montmorillonite Nanosheets/Polyethyleneimine Gel Adsorbent for Methylene Blue and Cu(II) Removal from Aqueous Solutions. Gels 2023; 9:gels9010040. [PMID: 36661806 PMCID: PMC9858328 DOI: 10.3390/gels9010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 01/06/2023] Open
Abstract
In recent years, the scarcity of pure water resources has received a lot of attention from society because of the increasing amount of pollution from industrial waste. It is very important to use low-cost adsorbents with high-adsorption performance to reduce water pollution. In this work, a gel adsorbent with a high-adsorption performance on methylene blue (MB) and Cu(II) was prepared from bamboo nanocellulose (BCNF) (derived from waste bamboo paper) and montmorillonite nanosheet (MMTNS) cross-linked by polyethyleneimine (PEI). The resulting gel adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (SEM), X-ray photoelectron spectroscopic (XPS), etc. The results indicated that the MB and Cu(II) adsorption capacities of the resulting gel adsorbent increased with the solution pH, contact time, initial concentration, and temperature before equilibrium. The adsorption processes of MB and Cu(II) fitted well with the fractal-like pseudo-second-order model. The maximal adsorption capacities on MB and Cu(II) calculated by the Sips model were 361.9 and 254.6 mg/g, respectively. The removal of MB and Cu(II) from aqueous solutions mainly included electrostatic attraction, ion exchange, hydrogen bonding interaction, etc. These results suggest that the resulting gel adsorbent is an ideal material for the removal of MB and Cu(II) from aqueous solutions.
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Ma M, Wang T, Ke X, Liu Y, Song Y, Shang X, Li J, Han Q. A novel slag composite for the adsorption of heavy metals: Preparation, characterization and mechanisms. ENVIRONMENTAL RESEARCH 2023; 216:114442. [PMID: 36202245 DOI: 10.1016/j.envres.2022.114442] [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: 07/05/2022] [Revised: 08/13/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
The utilization of solid waste for resource recovery and production of value-added products is the theme of green chemistry. Currently, how to using solid wastes to prepare environmentally-functional materials with high performance and strength is one of the hot topics. In this research, electrolytic manganese residue (EMR) was thermally activated with calcite to prepare a silicon-based functionalized adsorbent (C-EMR) for the removal of cadmium (Cd2+, 467.14 mg/g) and lead (Pb2+, 972 mg/g). The thermodynamic results indicated that the removal process of Cd2+ and Pb2+ by C-EMR were endothermic and spontaneous. HNO3 can effectively strip the two adsorbed metals from C-EMR with the stripping efficiency of nearly 80% for Cd2+ and 99.92% for Pb2+, indicating that adsorption and ion exchange may be the main reason for the removal of the metals on C-EMR. Besides, surface precipitation was also responsible for removing some Pb2+ from the aquatic environment according to the X-ray photoelectron spectrometry (XPS) analysis. Results indicate that -SiO3- has stronger affinity with Pb2+ and Cd2+ than other groups ((-MnO2), -OH) by theoretical calculation (VASP, GGA-PBE). This study shows that this novel adsorbent (C-EMR) can be adopted as an environmentally-friendly, inexpensive and efficient adsorbent for removal of Cd2+ and Pb2+ from aquatic solution. This technique not only provides potential adsorbent for the elimination of heavy metals but also proposes an alternative route for the treatment and utilization of waste solid.
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Affiliation(s)
- Mengyu Ma
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China; Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Ting Wang
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Xuan Ke
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Yanchang Liu
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Yunjie Song
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Xiaojie Shang
- College of Resources and Environment, Gansu Agricultural University, Lanzhou, 730070, China
| | - Jia Li
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China.
| | - Qingwen Han
- Three Gorges Laboratory, Yichang, 443007, China
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Sun L, Gong P, Sun Y, Qin Q, Song K, Ye J, Zhang H, Zhou B, Xue Y. Modified chicken manure biochar enhanced the adsorption for Cd 2+ in aqueous and immobilization of Cd in contaminated agricultural soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158252. [PMID: 36028042 DOI: 10.1016/j.scitotenv.2022.158252] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/12/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Biochar is thought to be good sorbent for heavy metal and exploring ways to increase the efficiency of heavy metal adsorption by biochar is of great importance. Chicken manure biochar was modified with sulfur, hydroxyapatite and MnFe2O4 respectively. The properties and composition of the pristine and modified biochar was characterized. The pH and ash content of biochar was significantly increased after modification. Energy dispersive spectroscopy results showed that biochar modified with sulfur, hydroxyapatite and MnFe2O4 was successfully loaded on S, Ca/P and Fe/Mn respectively. The adsorption kinetic of Cd2+ absorption by pristine and modified biochar was better fitted by the pseudo second-order kinetic model, suggesting that the adsorption of Cd2+ on biochar followed the process of chemisorption. The Cd2+ adsorption isotherms of sulfur modified chicken manure biochar (SCMB), hydroxyapatite modified chicken manure biochar (HCMB) and MnFe2O4 modified chicken manure biochar (FMCMB) was better fitted by Freundlich model, while the Cd2+ adsorption by pristine chicken manure biochar (CMB) was well fitted by Langmuir model. The maximum Cd2+ adsorption capacity of SCMB, HCMB, FMCMB and CMB was 188.20, 111.53, 109.94 and 19.65 mg·g-1 respectively. Quantitative analysis of Cd2+ adsorption mechanism by biochar showed that the contribution of ion exchange for Cd2+ adsorption of CMB accounted for 58 %, while SCMB, HCMB and FMCMB decreased to only 12 %, 8 % and 4 % respectively. Meanwhile, the contribution of precipitation, complexion and metal-Cπ coordination for Cd2+ adsorption increased after modification. Pot experiment showed that application of SCMB significantly increased soil pH value, decreased the bioavailable Cd in soil and Cd uptake by brassica chinensis shoots, suggesting that SCMB can be a potential material for the safety use of Cd contaminated agricultural soil.
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Affiliation(s)
- Lijuan Sun
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Peiyun Gong
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Yafei Sun
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Qin Qin
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Ke Song
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Jing Ye
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Hong Zhang
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Bin Zhou
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Yong Xue
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China.
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Rizwan K, Babar ZB, Munir S, Arshad A, Rauf A. Recent advancements in engineered biopolymeric-nanohybrids: A greener approach for adsorptive-remediation of noxious metals from aqueous matrices. ENVIRONMENTAL RESEARCH 2022; 215:114398. [PMID: 36174757 DOI: 10.1016/j.envres.2022.114398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/14/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Industrial wastewater is causing serious health problems due to presence of large concentrations of toxic metals. Removal of these metals is still a big challenge using pristine natural biopolymers due to their low surface area, water solubility, and poor recovery. Developing biopolymeric composites with other materials has attained attention because they possess a high surface area and structural porosity, high reactivity, and less water solubility. In simple words, biopolymeric nanohybrids have great adsorption capacity for heavy metals. Biopolymeric materials are abundant, low cost, biodegradable, and possess different functional moieties (carboxyl, amine, hydroxyl, and carbonyl) which play a vital role to adsorb metal ions through various inter-linkages (i.e., electrostatic, hydrogen bonding, ion exchange, chelation, etc.). Biopolymeric nanohybrids have been proven a potent tool in environmental remediation such as the abatement of heavy metal ions from polluted water. Herein, we have reported the adsorption potential of various biopolymers (cellulose, chitosan, pectin, gelatin, and silk proteins) for the removal of heavy metals. This review discusses the suitability of biopolymeric nanohybrids as an adsorbent for heavy metals, their synthesis, modification, adsorption potential, and adsorption mechanism along with best fitted thermodynamic and kinetic models. The influence of pH, contact time, and adsorbent dose on adsorption potential has also been discussed in detail. Lastly, the challenges, research gaps and recommendations have been presented. This review concludes that biopolymers in combination with other materials such as metal-based nanoparticles, clay, and carbon-based materials are excellent materials to remove metallic ions from wastewater. Significant adsorption of heavy metals was obtained at a moderate pH (5-6). Contact time and adsorbent dose also affect the adsorption of heavy metals in certain ways. The Pseudo-first order model fits the data for the initial period of the first step of the reaction. Kinetic studies of different adsorption processes of various biopolymeric nanohybrids described that for majority of bionanohybrids, Pseudo-second order fitted the experimental data very well. Functionalized biopolymeric nanohybrids being biodegradable, environment friendly, cost-effective materials have great potential to adsorb heavy metal ions. These may be the future materials for environmental remediation.
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Affiliation(s)
- Komal Rizwan
- Department of Chemistry, University of Sahiwal, Sahiwal, 57000, Pakistan.
| | - Zaeem Bin Babar
- Institute of Environmental Sciences and Engineering (IESE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan
| | - Shahid Munir
- Institute of Energy and Environmental Engineering, University of the Punjab, Lahore, 54590, Pakistan
| | - Ali Arshad
- Institute of Energy and Environmental Engineering, University of the Punjab, Lahore, 54590, Pakistan
| | - Abdul Rauf
- Institute of Energy and Environmental Engineering, University of the Punjab, Lahore, 54590, Pakistan
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Zhang Q, Zhou J, Zhang L, Zhong S, Ru X, Shu X. Sulfur defect and Fe(III) (hydr)oxides on pyrite surface mediate tylosin adsorption in lake water: effect of solution chemistry and dissolved organic matter. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:90248-90258. [PMID: 35869343 DOI: 10.1007/s11356-022-22140-7] [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: 04/07/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Pyrite affects the adsorption of tylosin (TYL) due to their coexistence in the lake system. As well as the reactivity groups of S-S-H, S-OH, and Fe-OH, defects also have the possibilities to influence the adsorption of organic contaminants. However, the role of these active sites in antibiotic adsorption on pyrite has not been deeply studied. Besides, pH, N, P, dissolved oxygen, and dissolved organic matter (DOM) fluctuate greatly in lake at different seasons, which may change the surface characteristics of pyrite. Hence, the adsorption of TYL on natural pyrite considered solution chemistry and DOM in lake water was explored in this study. The fitting results of the kinetic and isotherm models showed that the adsorption included physical and chemical interactions. The neutral initial solution pH was conductive to TYL adsorption owing to the combined result of electrostatic and cover of Fe-oxyhydroxide. NO3- and NH4+ had no effect on TYL adsorption, whereas H2PO4- promoted adsorption by forming flocculent Fe(H2PO4)3 precipitates. The dissolved oxygen increased adsorption. This is due to the co-promotion of the pyrite oxidation by oxygen and sulfur defects. The Fe(II)-DOM complex caused by pyrite surface oxidation reduced the concentration of TYL in solution by gathering. Except for the surface charge, reactivity groups on pyrite significantly influenced the adsorption of TYL. The bond fracture of S-S resulted in sulfur defects that contributed to pyrite oxidation. As a result, Fe(III)/Fe(II) on the surface of pyrite or in solution produced a complex Fe(III)/Fe(II) with anions and DOM. In addition, Fe(III)-S on sulfur defects interacted with the O-H of TYL through hydrogen bonding. Furthermore, the Fe-O-C bond is formed by the interaction of C-OH on TYL and Fe(III) (hydr)oxides on the surface of pyrite. The study provides a deep insight into the effect of pyrite surface active sites on amphoteric antibiotic adsorption. It helps to understand antibiotic migration and interactions with widespread pyrite in the real environment.
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Affiliation(s)
- Qian Zhang
- School of Life and Environmental Science, Guilin University of Electronic Technology, Guilin, 541000, Guangxi, China
| | - Jinwen Zhou
- School of Life and Environmental Science, Guilin University of Electronic Technology, Guilin, 541000, Guangxi, China
| | - Lishan Zhang
- School of Life and Environmental Science, Guilin University of Electronic Technology, Guilin, 541000, Guangxi, China
| | - Shan Zhong
- School of Life and Environmental Science, Guilin University of Electronic Technology, Guilin, 541000, Guangxi, China
| | - Xuan Ru
- School of Life and Environmental Science, Guilin University of Electronic Technology, Guilin, 541000, Guangxi, China
| | - Xiaohua Shu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541000, Guangxi, China.
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Dike CC, Hakeem IG, Rani A, Surapaneni A, Khudur L, Shah K, Ball AS. The co-application of biochar with bioremediation for the removal of petroleum hydrocarbons from contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 849:157753. [PMID: 35931161 DOI: 10.1016/j.scitotenv.2022.157753] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/28/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Soil pollution from petroleum hydrocarbon is a global environmental problem that could contribute to the non-actualisation of the United Nations Sustainable Development Goals. Several techniques have been used to remediate petroleum hydrocarbon-contaminated soils; however, there are technical and economical limitations to existing methods. As such, the development of new approaches and the improvement of existing techniques are imperative. Biochar, a low-cost carbonaceous product of the thermal decomposition of waste biomass has gained relevance in soil remediation. Biochar has been applied to remediate hydrocarbon-contaminated soils, with positive and negative results reported. Consequently, attempts have been made to improve the performance of biochar in the hydrocarbon-based remediation process through the co-application of biochar with other bioremediation techniques as well as modifying biochar properties before use. Despite the progress made in this domain, there is a lack of a detailed single review consolidating the critical findings, new developments, and challenges in biochar-based remediation of petroleum hydrocarbon-contaminated soil. This review assessed the potential of biochar co-application with other well-known bioremediation techniques such as bioaugmentation, phytoremediation, and biostimulation. Additionally, the benefits of modification in enhancing biochar suitability for bioremediation were examined. It was concluded that biochar co-application generally resulted in higher hydrocarbon removal than sole biochar treatment, with up to a 4-fold higher removal observed in some cases. However, most of the biochar co-applied treatments did not result in hydrocarbon removal that was greater than the additive effects of individual treatment. Overall, compared to their complementary treatments, biochar co-application with bioaugmentation was more beneficial in hydrocarbon removal than biochar co-application with either phytoremediation or biostimulation. Future studies should integrate the ecotoxicological and cost implications of biochar co-application for a viable remediation process. Lastly, improving the synergistic interactions of co-treatment on hydrocarbon removal is critical to capturing the full potential of biochar-based remediation.
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Affiliation(s)
- Charles Chinyere Dike
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia.
| | - Ibrahim Gbolahan Hakeem
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia
| | - Alka Rani
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia
| | - Aravind Surapaneni
- South East Water, 101 Wells Street, Frankston, Victoria 3199, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia
| | - Leadin Khudur
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia
| | - Kalpit Shah
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia
| | - Andrew S Ball
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia; ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora, Victoria 3083, Australia
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Luo X, Du H, Zhang X, Yang Y. Amine-functionalized magnetic biochars derived from invasive plants Alternanthera philoxeroides for enhanced efficient removal of Cr(VI): performance, kinetics and mechanism studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:78092-78106. [PMID: 35689769 DOI: 10.1007/s11356-022-20987-4] [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: 02/17/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
In this study, novel magnetic biochars derived from Alternanthera philoxeroides and modified by different amines (hexanediamine, melamine, and L-glutathione) were successfully prepared by hydrothermal carbonization and employed as an efficient adsorbent for Cr(VI). When pH = 2.0, T = 25 °C, c0 = 100 mg/L, and the dosage of biochars is 0.05 g, the maximum adsorption capacity of Cr(VI) by pristine biochar (BAP) was 42.47 mg/g and modified biochars (MFBAP, MEBAP, LBAP) was 80.58, 62.26, and 55.66 mg/g, respectively. It was found that hexanediamine and melamine could enhance the SBET of biochars, while L-glutathione could reduce its SBET, which could be supported by BET measurement and SEM images. Adsorption kinetics and isotherm studies showed that the Cr(VI) adsorption process of MFBAP followed Elovich kinetic model and Langmuir isotherm, respectively, which means that it was mainly a chemical adsorption process. The characterization results proved that -NH2 derived from amines plays a significant role in removing Cr(VI), which is mainly degraded by complexation reaction, electrostatic interaction, and reduction. In sum, the biochar modified by amines has excellent Cr(VI) adsorption performance, highly enhanced SBET, and excellent recyclability, which is a promising candidate for solving the problem of invasive plants and wastewater treatment.
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Affiliation(s)
- Xin Luo
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Haiying Du
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China.
| | - Xiaochao Zhang
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Yuhang Yang
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
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Lan J, Wang B, Gong B. Polyethyleneimine modified activated carbon for high-efficiency adsorption of copper ion from simulated wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:2465-2481. [PMID: 36378193 DOI: 10.2166/wst.2022.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In this study, activated carbon (AC) was chemically activated using sodium hydroxide (NaOH), and polyethyleneimine (PEI) was grafted onto the AC using glutaraldehyde as a cross-linking agent. Then the modified AC was applied to treat water samples containing copper ions (Cu2+). Preparation of AC-NaOH@PEI. The grafted AC was characterized, demonstrating that the specific surface area of material decreased from 959.3 to 556.9 m2/g. The ζ-potential changed from -27.2 to 10.4 mV, and the presence of a distinct flocculation on the surface of the AC was observed via scanning electron microscopy. The results demonstrated that PEI was successfully grafted onto the surface of AC. Furthermore, the adsorption results indicated that the Cu2+ adsorption capacity of AC-NaOH@PEI was greatly enhanced with increasing PEI loading. The adsorption amount of Cu2+ by the grafted AC-NaOH@PEI-200 increased from 20.02 to 47.8 mg/g. In addition, the adsorption of Cu2+ by AC-NaOH@PEI was a pH dependent process. At a pH of 6, the maximum removal rate reached 93%. The adsorption process is better described by the Langmuir and quasi-second order adsorption models, signifying that the adsorption of Cu2+ on AC@PEI consists of monolayer adsorption and chemisorption. After four adsorption-desorption cycles, AC@PEI exhibited high adsorption capacity for Cu2+, indicating that it has good regeneration ability. It is a promising adsorbent material.
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Affiliation(s)
- Jingming Lan
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, China E-mail:
| | - Baoying Wang
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, China E-mail:
| | - Bolin Gong
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, China E-mail:
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Feng Z, Feng C, Chen N, Lu W, Wang S. Preparation of composite hydrogel with high mechanical strength and reusability for removal of Cu(II) and Pb(II) from water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Liu C, Lin J, Chen H, Wang W, Yang Y. Comparative Study of Biochar Modified with Different Functional Groups for Efficient Removal of Pb(II) and Ni(II). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191811163. [PMID: 36141437 PMCID: PMC9517685 DOI: 10.3390/ijerph191811163] [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: 07/29/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 05/27/2023]
Abstract
The potential application of biochar in water treatment is attracting interest due to its sustainability and low production cost. In the present study, H3PO4-modified porous biochar (H-PBC), ethylenediaminetetraacetic acid-modified porous biochar (E-PBC), and NaOH-modified porous biochar (O-PBC) were prepared for Ni(II) and Pb(II) adsorption in an aqueous solution. Scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), Brunauer-Emmett-Teller analysis (BET), and Fourier-transform infrared (FT-IR) spectroscopy were employed to characterize the as-obtained samples, and their capacities for Ni(II) and Pb(II) adsorption were determined. SEM showed that H-PBC retained the hierarchical porous structure of pristine biochar. FT-IR showed that H-PBC possessed abundant oxygen-containing and phosphorus-containing functional groups on the surface. BET analysis demonstrated that the surface areas of H-PBC (344.17 m2/g) was higher than O-PBC (3.66 m2/g), and E-PBC (1.64 m2/g), respectively. H-PBC, E-PBC, and O-PBC all exhibited excellent performance at Ni(II) and Pb(II) adsorption with maximum adsorption capacity of 64.94 mg/g, 47.17 mg/g, and 60.24 mg/g, and 243.90 mg/g, 156.25 mg/g, and 192.31 mg/g, respectively, which were significantly higher than the adsorption capacity (19.80 mg/g and 38.31 mg/g) of porous biochar (PBC). Pseudo-second order models suggested that the adsorption process was controlled by chemical adsorption. After three regeneration cycles, the Ni(II) and Pb(II) removal efficiency with H-PBC were still 49.8% and 56.3%. The results obtained in this study suggest that H-PBC is a promising adsorbent for the removal of heavy metals from aqueous solutions.
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Affiliation(s)
- Chengcheng Liu
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
| | - Jiaxin Lin
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Synergy Innovation Institute of GDUT, Shantou 515041, China
| | - Haojia Chen
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Synergy Innovation Institute of GDUT, Shantou 515041, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515041, China
| | - Wanjun Wang
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Synergy Innovation Institute of GDUT, Shantou 515041, China
| | - Yan Yang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Synergy Innovation Institute of GDUT, Shantou 515041, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515041, China
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