1
|
Mladenović Nikolić N, Kljajević L, Nenadović SS, Potočnik J, Knežević S, Dolenec S, Trivunac K. Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials. Gels 2024; 10:317. [PMID: 38786234 PMCID: PMC11121154 DOI: 10.3390/gels10050317] [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: 04/03/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
The objective of this study was to demonstrate the potential utilization of fly ash (FA), wood ash (WA), and metakaolin (MK) in developing new alkali-activated materials (AAMs) for the removal of cadmium ions from waste water. The synthesis of AAMs involved the dissolution of solid precursors, FA, WA, and MK, by a liquid activator (Na2SiO3 and NaOH). In concentrated solutions of the activator, the formation of an aluminosilicate gel structure occurred. DRIFT spectroscopy of the AAMs indicated main vibration bands between 1036 cm-1 and 996 cm-1, corresponding to Si-O-Si/Si-O-Al bands. Shifting vibration bands were seen at 1028 cm-1 to 1021 cm-1, indicating that the Si-O-Si/Si-O-Al bond is elongating, and the bond angle is decreasing. Based on the X-ray diffraction results, alkali-activated samples consist of an amorphous phase and residual mineral phases. The characteristic "hump" of an amorphous phase in the range from 20 to 40° 2θ was observed in FA and in all AWAFA samples. By the XRD patterns of the AAMs obtained by the activation of a solid three-component system, a new crystalline phase, gehlenite, was identified. The efficiency of AAMs in removing cadmium ions from aqueous solutions was tested under various conditions. The highest values of adsorption capacity, 64.76 mg/g (AWAFA6), 67.02 mg/g (AWAFAMK6), and 72.84 mg/g mg/g (AWAMK6), were obtained for materials activated with a 6 M NaOH solution in the alkali activator. The Langmuir adsorption isotherm and pseudo-second kinetic order provided the best fit for all investigated AAMs.
Collapse
Affiliation(s)
- Nataša Mladenović Nikolić
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Ljiljana Kljajević
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Snežana S. Nenadović
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Jelena Potočnik
- Department of Atomic Physics, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia;
| | - Sanja Knežević
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Sabina Dolenec
- Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia;
- Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva ulica 12, 1000 Ljubljana, Slovenia
| | - Katarina Trivunac
- Department of Analytical Chemistry and Quality Control, Faculty of Technology and Metallurgy, University of Belgrade, 11 000 Belgrade, Serbia;
| |
Collapse
|
2
|
Ge S, Zhao S, Wang L, Zhao Z, Wang S, Tian C. Exploring adsorption capacity and mechanisms involved in cadmium removal from aqueous solutions by biochar derived from euhalophyte. Sci Rep 2024; 14:450. [PMID: 38172293 PMCID: PMC10764732 DOI: 10.1038/s41598-023-50525-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
Biochar has shown potential as a sorbent for reducing Cd levels in water. Euhalophytes, which thrive in saline-alkali soils containing high concentrations of metal ions and anions, present an intriguing opportunity for producing biochar with inherent metal adsorption properties. This study focused on biochar derived from the euhalophyte Salicornia europaea and aimed to investigate its Cd adsorption capacity through adsorption kinetics and isotherm experiments. The results demonstrated that S. europaea biochar exhibited a high specific surface area, substantial base cation content, and a low negative surface charge, making it a highly effective adsorbent for Cd. The adsorption data fit well with the Langmuir isotherm model, revealing a maximum adsorption capacity of 108.54 mg g-1 at 25 °C. The adsorption process involved both surface adsorption and intraparticle diffusion. The Cd adsorption mechanism on the biochar encompassed precipitation, ion exchange, functional group complexation, and cation-π interactions. Notably, the precipitation of Cd2+ with CO32- in the biochar played a dominant role, accounting for 73.7% of the overall removal mechanism. These findings underscore the potential of euhalophytes such as S. europaea as a promising solution for remediating Cd contamination in aquatic environments.
Collapse
Affiliation(s)
- Shaoqing Ge
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Ürümqi, 830011, Xinjiang, China
| | - Shuai Zhao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Ürümqi, 830011, Xinjiang, China.
| | - Lei Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Ürümqi, 830011, Xinjiang, China
| | - Zhenyong Zhao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Ürümqi, 830011, Xinjiang, China
| | - Shoule Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Ürümqi, 830011, Xinjiang, China
- Shandong Institute of Pomology, Taian, 271000, China
| | - Changyan Tian
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Ürümqi, 830011, Xinjiang, China.
| |
Collapse
|
3
|
Whale E, Bulling AEK, Fry SC. Biochemical characterisation of cellulose and cell-wall-matrix polysaccharides in variously oxidised sugar-beet pulp preparations differing in viscosity. Int J Biol Macromol 2023; 253:127356. [PMID: 37838137 DOI: 10.1016/j.ijbiomac.2023.127356] [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: 06/02/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 10/16/2023]
Abstract
Sugar-beet pulp (SBP) is an abundant, cellulose-rich, non-food by-product of agriculture. Oxidised SBP (oP) has valuable viscosity attributes, and different oxidation protocols yield higher- or lower-viscosity oP. We investigated how SBP polysaccharides change during oxidation, since these changes must define oP quality. Oxidation solubilised much pectin and hemicellulose; however, most cellulose stayed insoluble. Fresh SBP contains negligible 'hemicellulose a' (=alkali-extractable polysaccharides that precipitate upon acidification), but oxidation created abundant glucose-rich 'hemicellulose a' from SBP cellulose. We propose that the cellulose acquired COOH groups, conferring alkali-extractability and admitting more water, thereby augmenting viscosity. The pectin and hemicellulose molecules that were retained during oxidation had been partially depolymerised, and their median Mr correlated negatively with oP viscosity. We developed a novel procedure to explore cellulose's permeability by measuring the ingress of tritium from [3H]water into microfibrils and its retention during desiccation. In high-crystallinity Avicel, 75 % of the cellulose's OH groups were inaccessible to [3H]water, whereas filter-paper cellulose acquired the theoretical maximum 3H, indicating an open structure. Retention of 3H by oP preparations correlated positively with viscosity, indicating that increased cellulose accessibility generates a viscous oP. In conclusion, depolymerisation and solubilisation of matrix polysaccharides, accompanied by increasing water-accessibility of cellulose, enhanced SBP's viscosity.
Collapse
Affiliation(s)
- Eric Whale
- CelluComp Ltd., Unit 3, West Docks, Harbour Pl, Burntisland KY3 9DW, United Kingdom
| | - Anne E K Bulling
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, The University of Edinburgh, Daniel Rutherford Building, The King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, United Kingdom
| | - Stephen C Fry
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, The University of Edinburgh, Daniel Rutherford Building, The King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, United Kingdom.
| |
Collapse
|
4
|
Thrikkykkal H, Antu R, P S H. Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene-divinylbenzene)/Cu-Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:2277-2291. [PMID: 37186630 PMCID: wst_2023_101 DOI: 10.2166/wst.2023.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Bimetallic nanoparticles (BNPs) have been used as a new line of defence against heavy metal contamination among several types of nanoparticles (NPs) due to their enhanced, synergistic activity. In this study, we investigated the adsorption behaviour of porous (styrene-divinylbenzene)/CuNi bimetallic nanocomposite (P(St-DVB)/CuNi BNC) in a continuous flow fixed-bed column and its ability to remove Pb (II), Cd (II), and Zn (II) ions from aqueous solutions. We examined how the initial metal concentration, flow rate, and bed height affected the adsorption characteristics. Experimental results confirmed that the adsorption capacity increased with increase in influent metal concentration and bed height and decreased with increase in flow rate. The breakthrough and the column kinetic parameters were successfully predicted with three mathematical models: Thomas, Yoon-Nelson, and Adams-Bohart models. Both Thomas and Yoon-Nelson models showed good agreement with the experimental results for all the operating conditions. Successful desorption of heavy metals from the P(St-DVB)/CuNi BNC was performed using 0.5 M NaOH solution, and it showed good reusability of the adsorbent during four adsorption-desorption cycles. The results show that P(St-DVB)/CuNi BNC are effective and low-cost adsorbents, and they can be used in real-time large-scale industrial water treatment processes for the removal of heavy metals.
Collapse
Affiliation(s)
- Hridya Thrikkykkal
- Ecology and Environment Research Group, Centre for Water Resources Development and Management, Kunnamangalam, Kozhikode, Kerala 673 571, India E-mail:
| | - Rosmin Antu
- Ecology and Environment Research Group, Centre for Water Resources Development and Management, Kunnamangalam, Kozhikode, Kerala 673 571, India E-mail:
| | - Harikumar P S
- Ecology and Environment Research Group, Centre for Water Resources Development and Management, Kunnamangalam, Kozhikode, Kerala 673 571, India E-mail:
| |
Collapse
|
5
|
Wang Y, Zheng K, Jiao Z, Zhan W, Ge S, Ning S, Fang S, Ruan X. Simultaneous Removal of Cu 2+, Cd 2+ and Pb 2+ by Modified Wheat Straw Biochar from Aqueous Solution: Preparation, Characterization and Adsorption Mechanism. TOXICS 2022; 10:toxics10060316. [PMID: 35736924 PMCID: PMC9231304 DOI: 10.3390/toxics10060316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/04/2022] [Accepted: 06/08/2022] [Indexed: 01/19/2023]
Abstract
As an eco-friendly and efficient adsorbent for removal of potential toxic metals from aqueous solution, biochar has received widespread attention. In the present study, wheat straw biochar (BC) and corresponding modified biochar (HNC) were used to remove Cu2+, Cd2+ and Pb2+ from an aqueous solution. The influence of the environment factors on metals adsorption and adsorption mechanism were discussed in detail. The results showed that the HNC had porous structures and owned ample functional groups (-OH, -COOH and C-N groups) compared with the BC. In the single system, the adsorption capacities of HNC for Cu2+, Cd2+ and Pb2+ at a pH of 5.5 were 18.36, 22.83 and 49.38 mg/g, which were 76.89%, 164.36% and 22.75% higher than that of the BC, respectively. In addition, the adsorption process of Cu2+ and Cd2+ on BC and HNC fitted to the Langmuir isotherm model and pseudo-second-order kinetics, but the adsorption of Pb2+ on BC and HNC fitted to the Langmuir isotherm model and pseudo-first-order kinetics. Adsorption isotherms indicated that the adsorption of Cu2+, Cd2+ and Pb2+ by BC and HNC was a spontaneous endothermic process. The competitive adsorption of mixed metal ions (Cu2+, Cd2+ and Pb2+) revealed that HNC was more preferential to adsorb Cu2+ compared with Cd2+ and Pb2+. Furthermore, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analyses revealed that the main adsorption mechanisms were surface complexation and precipitation, and the adsorbed Cu2+, Cd2+ and Pb2+ on HNC mainly exist as CuO, Cd(OH)2, Pb3O4 and Pb(OH)2.
Collapse
Affiliation(s)
- Yangyang Wang
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng 475004, China
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Kaixuan Zheng
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Zhiqiang Jiao
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Wenhao Zhan
- National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing 100094, China;
| | - Shiji Ge
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Shaopeng Ning
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Shiyuan Fang
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
| | - Xinling Ruan
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China; (Y.W.); (K.Z.); (Z.J.); (S.G.); (S.N.); (S.F.)
- Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng 475004, China
- Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China
- Correspondence:
| |
Collapse
|
6
|
Sivaranjanee R, Kumar PS, Mahalaxmi S. A Review on Agro-based Materials on the Separation of Environmental Pollutants From Water System. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
7
|
Ahmed Z, Wu P, Wu J, Lu B, Abbasi SA, Rehman S, Li Y, Shang Z. Single and binary adsorption of lead and cadmium ions in aqueous solutions and river water by butylamine functionalized vermiculite: performance and mechanism. ENVIRONMENTAL TECHNOLOGY 2022:1-22. [PMID: 35225746 DOI: 10.1080/09593330.2022.2048085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Lead and cadmium are toxic to human, animal, and plant health; they enhance oxidative stress indirectly while simultaneously acting through other toxicodynamic mechanisms. In this study, pristine vermiculite (VER) was functionalized with butylamine (BUT) and a novel organoclay (BUT-VER) adsorbent material was produced for simultaneous removal of Pb(II) and Cd(II) in aquatic medium. The adsorbents were characterized by spectroscopic, microscopic, spectrometric, and potentiometric techniques. The adsorption affecting parameters, including pH, time, initial concentration, temperature, and co-existing cations were investigated and optimized. The kinetic data results were in better agreement with pseudo-second-order (PSO) model (R2 > 0.992). Multiple isotherm models were used to study the adsorption system and results showed that adsorption was monolayer. The BUT-VER showed an improvement in adsorption capacity in a single system (Pb(II): from 134.2 to 160.6 mg g-1) and (Cd(II): from 51.1 to 58.9 mg g-1) while in binary system (Pb(II): from 107.3 to 114.5 mg g-1) and (Cd(II): from 33.7 to 39.7 mg g-1), respectively. Furthermore, BUT-VER was tested in real river water and removed efficiency of >99% was achieved in just 1 h. The dominant mechanisms were electrostatic attraction and complexation. BUT-VER was regenerated for five consecutive cycles and showed >90% removal efficiency. These findings suggest that the proposed inexpensive adsorbent has the potential for practical applications of toxic metals removal from water.
Collapse
Affiliation(s)
- Zubair Ahmed
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
- Department of Energy and Environment Engineering, Dawood University of Engineering and Technology, Karachi, Pakistan
| | - Pingxiao Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, People's Republic of China
- Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou, People's Republic of China
- Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou, People's Republic of China
- Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, Guangzhou, People's Republic of China
| | - Jiayan Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Bingxin Lu
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Sikandar Ali Abbasi
- Department of Energy and Environment Engineering, Dawood University of Engineering and Technology, Karachi, Pakistan
| | - Saeed Rehman
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Yihao Li
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Zhongbo Shang
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| |
Collapse
|
8
|
Dinh VP, Xuan TD, Hung NQ, Luu TT, Do TTT, Nguyen TD, Nguyen VD, Anh TTK, Tran NQ. Primary biosorption mechanism of lead (II) and cadmium (II) cations from aqueous solution by pomelo (Citrus maxima) fruit peels. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:63504-63515. [PMID: 32720021 DOI: 10.1007/s11356-020-10176-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
The present work investigates the primary adsorption mechanisms of lead (II) and cadmium (II) cations onto pomelo fruit peel (PFP) from aqueous solution. pH, adsorption time, ion strength, and initial metal cation concentrations, which are factors affecting the uptake of these cations, are investigated. Results show that pH and ion strengths strongly affect the removal of these cations from aqueous solution. Different isotherm adsorption models, such as Langmuir, Freundlich, and Sips, are utilized to fit the experimental data in order to determine the adsorption in nature. The Langmuir monolayer adsorption capacities are found to be 47.18 mg/g for lead (II) and 13.35 mg/g for cadmium (II). Kinetic and thermodynamic studies based on a combination of FT-IR and TG-DSC spectroscopies demonstrate that electrostatic attraction plays a primary adsorption mechanism of lead (II) and cadmium (II) cations onto pomelo fruit peel.
Collapse
Affiliation(s)
- Van-Phuc Dinh
- Future Materials & Devices Laboratory, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam.
- Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam.
| | - Tran Dong Xuan
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam
| | - Nguyen Quang Hung
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam
| | - Thi-Thuy Luu
- Future Materials & Devices Laboratory, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam
| | - Thi-Thanh-Thao Do
- Future Materials & Devices Laboratory, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam
| | - Trinh Duy Nguyen
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, Vietnam
| | - Van-Dong Nguyen
- Faculty of Chemistry, University of Science, VNU-HCMC, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Tran Thi Kieu Anh
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology-VNU-HCM, 268 Ly Thuong Kiet Street., District 10, Ho Chi Minh City, 700000, Vietnam
| | - Ngoc Quyen Tran
- Institute of Applied Materials Science, VAST, TL29, Thanh Loc Ward, Dist. 12, Ho Chi Minh City, 700000, Vietnam
- Graduate University of Science and Technology, VAST, TL29, Thanh Loc Ward, Dist. 12, Ho Chi Minh City, 700000, Vietnam
| |
Collapse
|
9
|
Adsorption Behavior of Lead Ions from Wastewater on Pristine and Aminopropyl-Modified Blast Furnace Slag. WATER 2021. [DOI: 10.3390/w13192735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The potential possibility of blast furnace slag as a low-cost adsorbent to remove lead ions from wastewater was investigated in detail in the present work. Both single factor experiment and orthogonal experiment were performed to reveal the effect of pH, adsorption temperature, contact time and initial concentration of lead ions on the adsorption performance of pristine slag. In order to make clear the correlation between the lead ion adsorption performance and the structure of slag, solid state nuclear magnetic resonance (NMR) was conducted to reveal the network structure and X-ray fluorescence (XRF) was used to calculate the nonbridging oxygen in the network-forming tetrahedra. For the purpose of improving the adsorption performance, γ-aminopropyltriethoxysilane (APTES) was adopted to modify the slag via post-grafting method. The results show that the slag is predominately composed of SiO2, Al2O3, CaO and MgO, exhibiting an amorphous network structure based on SiO4 and AlO4 tetrahedra. The conditions for adsorption can be optimized as follows: a pH of 7, an adsorption temperature of 60 °C, a contact time of 120 min and an initial lead ion concentration of 40 mg·L−1. Under the optimal conditions, a removal rate of 99.98% and an adsorption capacity of 49.99 mg·g−1 are obtained for the pristine slag. The adsorption complies with the Langmuir model thermodynamically and conforms to the pseudo-second order model kinetically. It is noted that aminopropyl-modification has considerably enhanced the removal rate of lead ions from 20.71 to 64.32% and the adsorption capacity from 29.01 to 96.48 mg·g−1 since amino groups (-NH2) are more inclined to form a complex with lead ions than hydroxyl groups due to the higher nucleophilicity of amino groups than that of hydroxyl groups. However, it is necessary to develop more low-cost modification agents in the future work.
Collapse
|
10
|
Yang D, Yang S, Yuan H, Wang F, Wang H, Xu J, Liu X. Co-benefits of biochar-supported nanoscale zero-valent iron in simultaneously stabilizing soil heavy metals and reducing their bioaccessibility. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126292. [PMID: 34118546 DOI: 10.1016/j.jhazmat.2021.126292] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/20/2021] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
We investigated the performance and encapsulation mechanisms of novel biochar-supported nanoscale zero-valent iron (nZVI-BC) used for the remediation of soil co-contaminated with arsenic (As), cadmium (Cd), and lead (Pb) via incubation and column experiments. Compared with the control, 0.50% of nZVI-BC significantly decreased the leakage of As, Cd, and Pb by 97.94-98.45%, 42.86-81.12%, and 82.14-92.49%, respectively. In addition, 0.50% of nZVI-BC could transform the fraction of unstable heavy metals into a stable form, which substantially decreased the availability, leachability, and bioaccessibility of the heavy metals and hence greatly reduced the human health exposure risk. Column experiments showed that 0.50% of nZVI-BC effectively restrained the leaching of As, Cd, and Pb by 95.60-99.84%, 70.82-84.18%, and 91.68-99.81%, respectively. The predominant encapsulation mechanisms of nZVI-BC included complexation, precipitation/co-precipitation, reduction, and the formation of ternary surface complexes. Based on these insights, we can devise new strategies for the remediation of soil co-contaminated with As, Cd, and Pb.
Collapse
Affiliation(s)
- Dong Yang
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Shiyan Yang
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Honghong Yuan
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Fan Wang
- College of Life & Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Jianming Xu
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Xingmei Liu
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
11
|
Steel Slag and Autoclaved Aerated Concrete Grains as Low-Cost Adsorbents to Remove Cd2+ and Pb2+ in Wastewater: Effects of Mixing Proportions of Grains and Liquid-to-Solid Ratio. SUSTAINABILITY 2021. [DOI: 10.3390/su131810321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study investigated the applicability of industrial by-products such as steel slag (SS) and autoclaved aerated concrete (AAC) grains (<0.105, 0.105–2, 2–4.75 mm) as low-cost adsorbents for simultaneous removal of Cd2+ and Pb2+ in wastewater. A series of batch adsorption experiments was carried out in single and binary-metal solutions of Cd2+ and Pb2+ by changing the mixing proportions of SS and AAC grains. In addition, the effect of the liquid-to-solid ratio (L/S) on the removal of Cd2+ and Pb2+ in multi-metal solution was examined. Results showed that SS grains had a high affinity with Cd2+ in the single solution, while AAC grains had an affinity with Pb2+. In the binary solution, the mixtures of SS and AAC grains removed both Cd2+ and Pb2+ well; especially, the tested adsorbents of SS+AAC [1:1] and SS+AAC [1:4] mixtures achieved approximately 100% removal of both metals. Based on the results in the multi-metal solutions, the metal removal % and selectivity sequence varied depending on the mixed proportions of SS and AAC grains and L/S values. It was found that the SS+AAC [1:1] mixture of SS and AAC grains showed 100% removals of Cd2+, Pb2+, Cu2+, Ni2+, and Zn2+ simultaneously at L/S = 10 and 60.
Collapse
|
12
|
Chen H, Yang X, Liu Y, Lin X, Wang J, Zhang Z, Li N, Li Y, Zhang Y. KOH modification effectively enhances the Cd and Pb adsorption performance of N-enriched biochar derived from waste chicken feathers. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 130:82-92. [PMID: 34052470 DOI: 10.1016/j.wasman.2021.05.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/20/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Waste chicken feathers are the ideal precursor for the production of low-cost N-enriched biochar. KOH-modified N-enriched biochar (KNB) containing 15.92 wt% N was successfully prepared using waste chicken feathers. The adsorption kinetics results showed that KNB had rapid Cd (2 h) and Pb (1 h) adsorption rates. The Cd and Pb adsorption capacities of KNB (the values of KF were 22.324 (Cd) and 119.654 (Pb) mg1-(1/n)·L1/n·g-1) were 7.07 and 26.52 times higher than those of the original biochar based on the adsorption isotherm results. The KNB was stable at pH 3-6 and had stronger co-adsorption capacities in double-ion systems. Based on the adsorption experiments and various characterization methods, we concluded that the primary Cd and Pb adsorption mechanisms of KNB involved electrostatic interactions, cation-π interactions, complexation, and K+ exchange. The precipitation mechanism could partially account for Pb adsorption but not for Cd adsorption. KOH modification enhanced the electronegativity of biochar and then increased the electrostatic attraction. Surface O- and N-containing functional groups were involved in Cd and Pb adsorption. Graphitic-N, oxidised-N, and OCO were the main active adsorption groups, the relative contents of which increased after KOH modification, thus increasing the Cd and Pb adsorption performance. Therefore, KNB can be used as a fast and highly efficient adsorption agent to remove Cd and Pb from wastewater containing either Cd and Pb or a combination of these two metals.
Collapse
Affiliation(s)
- Huayi Chen
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Xingjian Yang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Southern Farmland Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Hunan Division of GRG Metrology and Test, Changsha 410000, PR China
| | - Yonglin Liu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Xueming Lin
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Jinjin Wang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Zhen Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Na Li
- Shenzhen RAINK Ecology & Environment Co, Ltd, Shenzhen 518101, PR China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yulong Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Southern Farmland Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Hunan Division of GRG Metrology and Test, Changsha 410000, PR China.
| |
Collapse
|
13
|
Seidi F, Reza Saeb M, Huang Y, Akbari A, Xiao H. Thiomers of Chitosan and Cellulose: Effective Biosorbents for Detection, Removal and Recovery of Metal Ions from Aqueous Medium. CHEM REC 2021; 21:1876-1896. [PMID: 34101343 DOI: 10.1002/tcr.202100068] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/14/2021] [Indexed: 12/15/2022]
Abstract
Removal of toxic metal ions using adsorbents is a well-known strategy for water treatment. While chitosan and cellulose can adsorb weakly some types of metals, incorporating thiols as metal chelating agents can improve their sorption behaviors significantly. Presented in this review are the various chemical modification strategies applicable for thiolation of chitosan and cellulose in the forms of mercaptans, xanthates and dithiocarbamates. Moreover, much attention has been paid to the specific strategies for controlling the thiolation degree and characterization approaches for establishing the structure-property relationship. Also, the kinetics and isotherm models that elucidate the adsorption processes and mechanisms induced by the thiomers have been explained. These thiomers have found great potentials in the applications associated with metal removal, metal recovery and metal detection.
Collapse
Affiliation(s)
- Farzad Seidi
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, 210037, Nanjing, China
| | | | - Yang Huang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, 210037, Nanjing, China
| | - Ali Akbari
- Solid Tumor Research Center, Research Institute for Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, E3B 5A3, Fredericton, New Brunswick, Canada
| |
Collapse
|
14
|
Novoseltseva V, Yankovych H, Kovalenko O, Václavíková M, Melnyk I. Production of high-performance lead(II) ions adsorbents from pea peels waste as a sustainable resource. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2021; 39:584-593. [PMID: 32705958 DOI: 10.1177/0734242x20943272] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This research deals with a highly efficient, selective, low-cost, and recyclable adsorbent for the fast removal of lead (Pb)(II) ions from aqueous solutions, and an investigation of the related adsorption mechanisms. Three types of materials were prepared from pea peels waste using simple, energy-efficient and environmentally friendly treatment. Obtained adsorbents were characterized by elemental analysis, infrared spectroscopy, scanning electron microscopy, Boehm titration, and the main parameters were determined. The highest adsorption capacity was observed for the biochar prepared by heating of pea peels at 600°C for 30 minutes. The uptake of Pb(II) ions on pea peels-derived samples was examined as a function of pH, contact time, and initial Pb2+ concentration. Obtained results from adsorption experiments of Pb(II) ions on the biochar surface indicate high adsorption capacity, and the possibility of its preconcentration and selective removal in the presence of zinc(II) and cadmium(II) ions. This confirms a potential application of such materials in water remediation.
Collapse
Affiliation(s)
- Viktoriia Novoseltseva
- Institute of Geotechnics SAS, Košice, Slovak Republic
- Odesa National Academy of Food Technologies, Odesa, Ukraine
| | | | | | | | - Inna Melnyk
- Institute of Geotechnics SAS, Košice, Slovak Republic
| |
Collapse
|
15
|
Cd(II) and Pb(II) Adsorption Using a Composite Obtained from Moringa oleifera Lam. Cellulose Nanofibrils Impregnated with Iron Nanoparticles. WATER 2021. [DOI: 10.3390/w13010089] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This work informs on the green synthesis of a novel adsorbent and its adsorption capacity. The adsorbent was synthesized by the combination of iron nanoparticles and cellulose nanofibers (FeNPs/NFCs). Cellulose nanofibers (NFCs) were obtained from Moringa (Moringa oleifera Lam.) by a pulping Kraft process, acid hydrolysis, and ultrasonic methods. The adsorption method has advantages such as high heavy metal removal in water treatment. Therefore, cadmium (Cd) and lead (Pb) adsorption with FeNP/NFC from aqueous solutions in batch systems was investigated. The kinetic, isotherm, and thermodynamic parameters, as well as the adsorption capacities of FeNP/NFC in each system at different temperatures, were evaluated. The adsorption kinetic data were fitted to mathematical models, so the pseudo-second-order kinetic model described both Cd and Pb. The kinetic rate constant (K2), was higher for Cd than for Pb, indicating that the metal adsorption was very fast. The adsorption isotherm data were best described by the Langmuir–Freundlich model for Pb multilayer adsorption. The Langmuir model described Cd monolayer sorption. However, experimental maximum adsorption capacities (qe exp) for Cd (>12 mg/g) were lower than those for Pb (>80 mg/g). In conclusion, iron nanoparticles on the FeNP/NFC composite improved Cd and Pb selectivity during adsorption processes, indicating the process’ spontaneous and exothermic nature.
Collapse
|
16
|
Gao Y, Zeng J, Zhu S, Liu Q. Co-modification of lignocellulosic biomass by maleic anhydride and ferric hydroxide for the highly efficient biosorption of methylene blue. NEW J CHEM 2021. [DOI: 10.1039/d1nj03259c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ferric hydroxide and microwave-assisted solvent-free esterification was applied in the modification of SBP to synthesize an efficient cationic dye adsorbent.
Collapse
Affiliation(s)
- Youcheng Gao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jun Zeng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Siming Zhu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, P. R. China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, P. R. China
| | - Qiang Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| |
Collapse
|
17
|
Wang Z, Wu X, Luo S, Wang Y, Tong Z, Deng Q. Shell biomass material supported nano-zero valent iron to remove Pb 2+ and Cd 2+ in water. ROYAL SOCIETY OPEN SCIENCE 2020; 7:201192. [PMID: 33204474 PMCID: PMC7657911 DOI: 10.1098/rsos.201192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Nanoscale zero-valent iron (NZVI) has a high adsorption capacity for heavy metals, but easily forms aggregates. Herein, preprocessed undulating venus shell (UVS) is used as support material to prevent NZVI from reuniting. The SEM and TEM results show that UVS had a porous layered structure and NZVI particles were evenly distributed on the UVS surface. A large number of adsorption sites on the surface of UVS-NZVI are confirmed by IR and XRD. UVS-NZVI is used for adsorption of Pb2+ and Cd2+ at pH = 6.00 in aqueous solution, and the experimental adsorption capacities are 29.91 and 38.99 mg g-1 at optimal pH, respectively. Thermodynamic studies indicate that the adsorption of ions by UVS-NZVI is more in line with the Langmuir model when Pb2+ or Cd2+ existed alone. For the mixed solution of Pb2+ and Cd2+, only the adsorption of Pb2+ by UVS-NZVI conforms to the Langmuir model. In addition, the maximum adsorption capacities of UVS-NZVI for Pb2+ and Cd2+ are 93.01 and 46.07 mg g-1, respectively. Kinetic studies demonstrate that the determination coefficients (R 2) of the pseudo first-order kinetic model for UVS-NZVI adsorption of Cd2+ and Pb2+ are higher than those of the pseudo second-order kinetic model and Elovich kinetic model. Highly efficient performance for metal removal makes UVS-NZVI show potential application to heavy metal ion adsorption.
Collapse
Affiliation(s)
- Zheng Wang
- School of Science, Hainan University, Haikou 570228, People's Republic of China
| | - Xique Wu
- School of Chemical Engineering and Technology, Hainan University, Haikou 570228, People's Republic of China
| | - Shengxu Luo
- School of Science, Hainan University, Haikou 570228, People's Republic of China
- Key Laboratory of Ministry of Education of Advanced Materials of Tropical Island Resources, Hainan University, Haikou 570228, People's Republic of China
| | - Yanshi Wang
- School of Chemical Engineering and Technology, Hainan University, Haikou 570228, People's Republic of China
| | - Zhuang Tong
- School of Chemical Engineering and Technology, Hainan University, Haikou 570228, People's Republic of China
| | - Qin Deng
- School of Chemical Engineering and Technology, Hainan University, Haikou 570228, People's Republic of China
| |
Collapse
|
18
|
Jamoussi B, Chakroun R, Jablaoui C, Rhazi L. Efficiency of Acacia Gummifera powder as biosorbent for simultaneous decontamination of water polluted with metals. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
19
|
Removal of Pb2+ from Aqueous Solutions Using K-Type Zeolite Synthesized from Coal Fly Ash. WATER 2020. [DOI: 10.3390/w12092375] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, a novel zeolite (K-type zeolite) was synthesized from coal fly ash (FA), and adsorption capacity on Pb2+ was assessed. Six types of zeolite (FA1, FA3, FA6, FA12, FA24, and FA48) were prepared, and their physicochemical properties, such as surface functional groups, cation exchange capacity, pHpzc, specific surface area, and pore volume, were evaluated. The quantity of Pb2+ adsorbed by the prepared zeolites followed the order FA < FA1 < FA3 < FA6 < FA12 < FA24 < FA48. Current results indicate that the level of Pb2+ adsorbed was strongly related to the surface characteristics of the adsorbent. Additionally, the correlation coefficient between the amounts of Pb2+ adsorbed and K+ released from FA48 was 0.958. Thus, ion exchange with K+ in the interlayer of FA48 is critical for the removal of Pb2+ from aqueous media. The new binding energies of Pb(4f) at 135 and 140 eV were detected after adsorption. Moreover, FA48 showed selectivity for Pb2+ adsorption in binary solution systems containing cations. The results revealed that FA48 could be useful for removing Pb2+ from aqueous media.
Collapse
|
20
|
Fan J, Cai C, Chi H, Reid BJ, Coulon F, Zhang Y, Hou Y. Remediation of cadmium and lead polluted soil using thiol-modified biochar. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:122037. [PMID: 31951992 DOI: 10.1016/j.jhazmat.2020.122037] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 12/29/2019] [Accepted: 01/06/2020] [Indexed: 05/22/2023]
Abstract
Thiol-modified rice straw biochar (RS) was prepared by an esterification reaction with β-mercaptoethanol and used for the remediation of Cd and Pb polluted soils. Modified biochar was characterized through elemental analysis, BET analysis, FE-SEM, FT-IR and XPS. These analytical results revealed that thiol groups were successfully grafted onto the surface of the biochar and were involved in metal ion complexation. Batch sorption experiments indicated that Cd2+ and Pb2+ sorption onto RS described well by a pseudo second order kinetic model and a Langmuir isotherm. The maximum adsorption capacities for Cd2+ and Pb2+, in the single-metal systems, were 45.1 and 61.4 mg g-1, respectively. In the binary-metal systems, RS selectively adsorbed Cd2+ over Pb2+. Cd2+ and Pb2+ were removed mainly through surface complexation. In the soil incubation experiments (28 days), RS reduced the available Cd by 34.8-39.2 %; while, RS reduced the available Pb by 8.6 %-11.1 %. This research demonstrates RS as a potentially effective amendment for the remediation of heavy metal polluted soils.
Collapse
Affiliation(s)
- Jiajun Fan
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Chao Cai
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Haifeng Chi
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Brian J Reid
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; School of Environmental Sciences, University of East Anglia, Norwich NR47TJ, UK
| | - Frédéric Coulon
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Youchi Zhang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
| | - Yanwei Hou
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
| |
Collapse
|
21
|
Yang D, Wang L, Li Z, Tang X, He M, Yang S, Liu X, Xu J. Simultaneous adsorption of Cd(II)andAs(III)by a novel biochar-supported nanoscale zero-valent iron in aqueous systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:134823. [PMID: 31780167 DOI: 10.1016/j.scitotenv.2019.134823] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/25/2019] [Accepted: 10/03/2019] [Indexed: 06/10/2023]
Abstract
Biochar-supported nanoscale zero-valent iron (nZVI-BC) is a promising material for Cd(II) and As(III) removal from aqueous systems. In this study, simplified nZVI-BC composites were successfully synthesized and characterized via scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD), X-ray photoelectron spectrometry (XPS), and Fourier transform infrared spectroscopy (FTIR) to understand the underlying adsorption mechanism. SEM and FTIR confirmed that nZVI particles were distributed evenly on the biochar surface. XRD and XPS revealed that metal ions were separated from solutions via electrostatic adsorption, complexation, oxidation, precipitation/co-precipitation, and the formation of type B ternary surface complex. Batch experiments showed that nZVI-BC (1:1) had a high removal efficiency in a wide pH range of 5.0-8.0 for Cd(II) and 3.0-8.0 for As(III), the maximum Cd(II) and As(III) adsorption capacities were 33.81 and 148.5 mg/g within 2 and 1 h, respectively. Additionally, synergisticeffects considerably enhanced the adsorption capacity of nZVI-BC(1:1) in mixed adsorption systems, the adsorption capacities of Cd(II) and As(III) reached 179.9 and 158.5 mg/g, respectively. Hence, nZVI-BC(1:1) is an ideal candidate for Cd(II) and As(III) pollution treatment.
Collapse
Affiliation(s)
- Dong Yang
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Lu Wang
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Zhangtao Li
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Xianjin Tang
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Mingjiang He
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Shiyan Yang
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Xingmei Liu
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China.
| | - Jianming Xu
- College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| |
Collapse
|
22
|
Tan X, Wei W, Xu C, Meng Y, Bai W, Yang W, Lin A. Manganese-modified biochar for highly efficient sorption of cadmium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:9126-9134. [PMID: 31916167 DOI: 10.1007/s11356-019-07059-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
In this study, corn stalk was modified by manganese (Mn) before (MBC1) and after (MBC2) pyrolysis at different temperatures (400~600 °C) under anaerobic conditions for Cd sorption in both water and soil. Batch experiments in aqueous solution were conducted to evaluate the optimum sorption capability by biochar with and without manganese-modified. Both types of manganese modification can improve the sorption capacity of Cd(II) on biochar, which is superior to the corresponding pristine biochar without modification, especially, pyrolyzed at 500 °C with 5:1 modification ratio. Under the optimal preparation conditions, the sorption percentage on MBC2 was 11.01% higher than that of MBC1. The maximum sorption capacity of MBC2 was 191.94 mg g-1 calculated by isotherm model. The performance of MBC2 was also verified in soil stabilization experiments in Cd-contaminated soil. We can conclude from the results of BCR extraction that all the application rates of MBC2 (1%, 2%, and 3%) can reduce the mild acid-soluble fraction Cd. The reducible, oxidizable, and residual fraction Cd showed an upward trend, thus controlling the migration, transformation, and enrichment of Cd in soil. The characteristic analysis showed biochar has more irregular fold and more particle-aggregated surface after modification. The main components of these aggregated particles are manganese oxides (MnOx) with high sorption capacity, such as the MnOx crystal structure loaded on MBC2 is a mixed structure of δ-MnO2 and MnO. However, these particles may block the biochar pores, or some of the pores may collapse at high temperatures during the modification process. The specific surface area was reduced, even if the sorption effect of MBC was strongly enhanced. Meanwhile, under the action of the secondary pyrolysis of MBC2 modification process, the MBC2 has a higher degree of aromatization with more potential active sorption sites for Cd. The study concluded that the MBC2 could be a promising amendment for Cd in both water and soil real field applications.
Collapse
Affiliation(s)
- Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Wenxia Wei
- Beijing Key Laboratory of Industrial Land Contamination and Remediation, Environmental Protection Research Institute of Light Industry, Beijing, 100089, People's Republic of China
| | - Congbin Xu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Yue Meng
- Beijing Management Division of North Grand Canal, Beijing, 101100, People's Republic of China
| | - Wenrong Bai
- Beijing Management Division of North Grand Canal, Beijing, 101100, People's Republic of China
| | - Wenjie Yang
- Chinese Academy for Environmental Planning, Beijing, 100012, People's Republic of China.
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
- Qinhuangdao Bohai Biological Research Institute of Beijing University of Chemical Technology, Qinhuangdao, 100012, Hebei, People's Republic of China.
| |
Collapse
|
23
|
Amin MT, Alazba AA, Shafiq M. Comparative study for adsorption of methylene blue dye on biochar derived from orange peel and banana biomass in aqueous solutions. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:735. [PMID: 31707527 DOI: 10.1007/s10661-019-7915-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Biochar pyrolyzed at 800 °C from banana (Bb) and orange peels (OPb) was applied for sorption of methylene blue (MB) dye in a batch system. OPb showed better affinity for MB dye than Bb with rapid increase in sorption capacity and percent removal for both biochars attaining equilibrium at 30 min. Chemisorption was suggested as the rate limiting step based on the best fitting of the pseudo-second-order reaction kinetics to the batch adsorption data. Linear increase in sorption capacity was seen as the initial MB dye concentration increased from 50 to 300 mg g-1 with a 40 % decrease in removal efficiency. An increase of 90 mg g-1 in sorption capacity for both biochars with a 15 and 30 % increase in removal efficiency for OPb and Bb, respectively, was observed after increasing the solution pH from 2 to 6 or 8. An increase in sorption capacity of about 150 mg g-1 was seen by increasing the biochar dose from 0.1 to 0.5 g. Langmuir isotherm model represented the adsorption data well as reflected by the high values of R2 (0.99) when using both biochar, while least representation of adsorption data was seen in H-J isotherm as estimated from very low R2 (0.6-0.66) for both types of biochar. An endothermic nature of MB dye sorption was suggested based on the linear increase in sorption capacity with an increase in solution temperature from 30 to 60 °C. This was further confirmed by the observed positive changes in standard entropy and standard enthalpy while negative values of Gibbs-free energies proposed the non-spontaneous natures of MB dye sorption on to both biochars. The effective sorption of MB dye demonstrated the potential of plant-based biochar as economically viable adsorbents for MB dye.
Collapse
Affiliation(s)
- M T Amin
- Alamoudi Water Research Chair, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia.
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan.
| | - A A Alazba
- Alamoudi Water Research Chair, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
- Agricultural Engineering Department, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - M Shafiq
- Alamoudi Water Research Chair, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| |
Collapse
|
24
|
Nuhanović M, Grebo M, Draganović S, Memić M, Smječanin N. Uranium(VI) biosorption by sugar beet pulp: equilibrium, kinetic and thermodynamic studies. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06877-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
25
|
Wang Q, Li JS, Poon CS. Using incinerated sewage sludge ash as a high-performance adsorbent for lead removal from aqueous solutions: Performances and mechanisms. CHEMOSPHERE 2019; 226:587-596. [PMID: 30954893 DOI: 10.1016/j.chemosphere.2019.03.193] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/28/2019] [Accepted: 03/31/2019] [Indexed: 06/09/2023]
Abstract
A substantial amount of ash is produced after the incineration of sewage sludge which is difficult to manage. Its potential use as a cost-effective adsorbent for heavy metals is beneficial to both waste management and wastewater treatment. In this study, the adsorption kinetics, isotherms as well as the factors influencing the adsorption performance were assessed through batch sorption experiments. The results show that incinerated sewage sludge ash (ISSA) was effective in adsorbing Pb(II) from aqueous solution in a wide pH range (3.00-6.00) due to the combined contributions of ion exchange, precipitation and complexation, which was confirmed by systematic investigation through XRD, SEM-EDX, FTIR, XPS and a sequential extraction procedure (SEP) for Pb(II). Nonetheless, the adsorption of Pb(II) by ISSA would be adversely affected by high ionic strength. The sorption process was fast, and the equilibrium data could be well described by the Langmuir model, the maximum uptake capacity for Pb(II) increased with temperature and the calculated adsorption capacities at 298, 308 and 318 K for Pb(II) were 58.28, 60.06 and 62.42 mg/g, respectively. These findings indicate the ISSA can be recognized as a high-performance adsorbent for Pb(II) removal in wastewater treatment applications.
Collapse
Affiliation(s)
- Qiming Wang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, China.
| | - Jiang-Shan Li
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, China.
| | - Chi Sun Poon
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, China.
| |
Collapse
|
26
|
Comparative Sorption of Nickel from an Aqueous Solution Using Biochar Derived from Banana and Orange Peel Using a Batch System: Kinetic and Isotherm Models. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/s13369-019-03907-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
27
|
Application of biochar derived from date palm biomass for removal of lead and copper ions in a batch reactor: Kinetics and isotherm scrutiny. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.02.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
28
|
Akar T, Güray T, Yilmazer DT, Tunali Akar S. Biosorptive detoxification of zearalenone biotoxin by surface-modified renewable biomass: process dynamics and application. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:1850-1861. [PMID: 30264397 DOI: 10.1002/jsfa.9379] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/25/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Contamination of food, feed, beverages and even drinking water with biotoxins is a growing global concern because of their potential health risks. In this work, surface-modified sugar beet pulp waste was used for the biosorptive removal of zearalenone biotoxin from contaminated aquatic media. RESULTS Infrared, Boehm titration, BET (Brunauer-Emmett-Teller) surface area and point of zero charge analysis were employed for surface characterization. Kinetic and equilibrium studies showed that biotoxin biosorption was well predicted by the pseudo-second-order kinetic model and the Langmuir isotherm model. Zearalenone was removed from the solution over a wide pH range (3.0-8.0) and within a short time (15 min). Maximum uptake capacity of modified biomass was recorded as 23.30 ± 0.17 g kg-1 . Highest removal yield in a dynamic flow mode (94.56 ± 0.13%) was achieved at 2 mL min-1 flow rate using 30 mg biosorbent. Regeneration experiments revealed high reusability potential of suggested biosorbent. Moreover, its application potential was tested in spiked samples of malt, beer and canned corn liquid. CONCLUSION Detoxification potential of this renewable biomass was significantly enhanced after modification. Modified biomass could be used as an efficient and low-cost green-type material with good application potential for zearalenone detoxification. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Tamer Akar
- Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Tufan Güray
- Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Dilek Tunc Yilmazer
- Department of Chemistry, Graduate School of Natural and Applied Sciences, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Sibel Tunali Akar
- Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, Eskişehir, Turkey
| |
Collapse
|
29
|
Sun C, Chen T, Huang Q, Wang J, Lu S, Yan J. Enhanced adsorption for Pb(II) and Cd(II) of magnetic rice husk biochar by KMnO 4 modification. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8902-8913. [PMID: 30715697 DOI: 10.1007/s11356-019-04321-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/22/2019] [Indexed: 05/22/2023]
Abstract
Novel KMnO4-treated magnetic biochar (FMBC) was successfully synthesized by addition of Fe(NO3)3 during carbonization and KMnO4 treatment following for Pb(II) and Cd(II) adsorption. SEM-EDS, XPS, and ICP-AES were used to evaluate the FMBC and magnetic biochar (FBC) on surface morphology, surface chemistry characteristics, surface functional groups, and Pb(II) and Cd(II) adsorption behavior. Results showed that the Langmuir maximum adsorption quantity of FMBC reached 148 mg/g for Pb(II) and 79 mg/g for Cd(II), nearly 7 times of that of FBC. The enhancement of FMBC for heavy metal adsorption was due to the successful load of manganese oxides and the increased oxygen functional groups consistent with XPS and FTIR results. The adsorption capacities of FMBC were maintained over 95% when the pH value was higher than 2.5 and 3.5 for Pb(II) and Cd(II), respectively. The adsorption performances of both heavy metals by FMBC were hardly influenced by ionic strength and humid acid. The adsorption capacities of FMBC could maintain over 50% and 87% after four cycles for Pb(II) and Cd(II), respectively. The saturation magnetization of FMBC was about 11.5 emu/g, which did not change after adsorption. This work proposed a new method to fabricate a magnetic biochar with high adsorption capacities of heavy metals Pb(II) and Cd(II).
Collapse
Affiliation(s)
- Chen Sun
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Tong Chen
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China.
| | - Qunxing Huang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Jun Wang
- Everbright Envirotech (China) Ltd. Institute of Incineration Technology, Nanjing, 211106, China
| | - Shengyong Lu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Jianhua Yan
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| |
Collapse
|
30
|
Shah GM, Nasir M, Imran M, Bakhat HF, Rabbani F, Sajjad M, Umer Farooq AB, Ahmad S, Song L. Biosorption potential of natural, pyrolysed and acid-assisted pyrolysed sugarcane bagasse for the removal of lead from contaminated water. PeerJ 2018; 6:e5672. [PMID: 30280040 PMCID: PMC6166628 DOI: 10.7717/peerj.5672] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 08/29/2018] [Indexed: 12/03/2022] Open
Abstract
Lead (Pb) is a ubiquitous pollutant which poses serious threats to plants, animals and humans once entered into the food chain via contaminated industrial effluents on their discharge into the surface of water bodies and/or geological materials. This study aimed to examine and compare the biosorption potential of natural sugarcane bagasse (NB), pyrolysed sugarcane bagasse (PB) and acid assisted pyrolysed sugarcane bagasse (APB) for the removal of Pb from contaminated water. To explore this objective, a series of batch experiments were conducted at various adsorbent mass (0.25, 0.5, 0.75, 1.0 g per 100 ml contaminated water), initial Pb concentration (7, 15, 30, 60 and 120 ppm), and contact time (7, 15, 30, 60 and 120 min). Results revealed that all the tested bio-sorbents have potential to adsorb and remove Pb ions from the contaminated water. In this regard, APB proved more effective since it removed 98% of Pb from aqueous solution at initial Pb concentration of 7 ppm and mass of 0.25 g per 100 ml of aqueous solution. The respective values in case of NB and PB were 90 and 95%. For a given adsorbent type, Pb adsorption decreased by increasing the mass from 0.25 to 1.0 g per 100 ml of aqueous solution. However, the greatest Pb removal occurred at adsorbent mass of 1.0 g per 100 ml of aqueous solution. Initial Pb concentration had a great impact on Pb adsorption and removal by adsorbent. The former increased and the latter decreased with the increase in initial Pb concentration from seven to 120 ppm. At seven ppm Pb concentration, maximum Pb removal took place irrespective to the adsorbent type. Out of the total Pb adsorption and removal, maximum contribution occurred within 15 min of contact time between the adsorbate and adsorbent, which slightly increased till 30 min, thereafter, it reached to equilibrium. Application of equilibrium isotherm models revealed that our results were better fitted with Freundlich adsorption isotherm model. Overall, and for the reasons detailed above, it is concluded that sugarcane bagasse has capabilities to adsorb and remove Pb ions from contaminated water. Its bio-sorption potential was considerably increased after pyrolysis and acid treatment.
Collapse
Affiliation(s)
- Ghulam Mustafa Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan.,Yantai Institute, China Agricultural University, Yantai, Shandong, China
| | - Muhammad Nasir
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Muhammad Imran
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Hafiz Faiq Bakhat
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Faiz Rabbani
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Muhammad Sajjad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Abu Bakr Umer Farooq
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Sajjad Ahmad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Punjab, Pakistan
| | - Lifen Song
- Yantai Institute, China Agricultural University, Yantai, Shandong, China
| |
Collapse
|
31
|
Evaluation of Cd(II) Ion Removal from Aqueous Solution by a Low-Cost Adsorbent Prepared from White Yam (Dioscorea rotundata) Waste Using Batch Sorption. CHEMENGINEERING 2018. [DOI: 10.3390/chemengineering2030035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An agricultural residue, white yam (Dioscorea rotundata) tuber peel (YTBS), was used for the removal of Cd(II) ion from an aqueous solution using a batch method. The adsorbent was characterized using FTIR, TGA, SEM, EDX, N2 BET, XRD, and XRF. The optimization of sorption variables such as pH, contact time, adsorbent dose, and initial metal ion concentration at 25 °C were also carried out. The results indicated the dependence of sorption on the adsorbate pH and adsorbent dose, while the adsorption system reached equilibrium in 180 min. The sorption kinetics was fitted to three models (pseudo first order, pseudo second order, and Elovich) to validate the kinetics, and the pseudo first order was the best model for the description of Cd(II) uptake. Equilibrium isotherm modelling was also carried out using the Langmuir, Freundlich, and Temkin models, with the Langmuir isotherm giving the best fitting to the experimental results. The maximum loading capacity (qmax) of the adsorbent for Cd(II) obtained from the Langmuir isotherm model was 22.4 mg∙g−1 with an isotherm constant (KL) of 3.46 × 10−3 L·mg−1 and r2 value of 0.99. This result indicates that the YTBS residue was a good adsorbent for the removal of Cd(II) ion from aqueous system.
Collapse
|
32
|
Karimi MA, Masrouri H, Mirbagheri MA, Andishgar S, Pourshamsi T. Synthesis of a new magnetic metal-organic framework nanocomposite and its application in methylene blue removal from aqueous solution. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201800061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | - Hassan Masrouri
- Department of Chemistry and Petrochemical Engineering; Standard Research Institute; Karaj Iran
| | | | - Saeed Andishgar
- Department of Chemistry; Payame Noor University; Tehran Iran
| | | |
Collapse
|
33
|
Interpreting the pH-dependent mechanism of simazine sorption to Miscanthus biochar produced at different pyrolysis temperatures for its application to soil. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0054-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
34
|
Kocaoba S, Arısoy M. Biosorption of cadmium(II) and lead(II) from aqueous solutions using Pleurotus ostreatus immobilized on bentonite. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1442477] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Sevgi Kocaoba
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, Davutpasa, Istanbul, Turkey
| | - Munevver Arısoy
- Faculty of Health Sciences, Department of Nutrition and Dietary, Ankara University, Altındag, Ankara, Turkey
| |
Collapse
|
35
|
Li Z, Wang L, Meng J, Liu X, Xu J, Wang F, Brookes P. Zeolite-supported nanoscale zero-valent iron: New findings on simultaneous adsorption of Cd(II), Pb(II), and As(III) in aqueous solution and soil. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:1-11. [PMID: 29028493 DOI: 10.1016/j.jhazmat.2017.09.036] [Citation(s) in RCA: 269] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/19/2017] [Accepted: 09/21/2017] [Indexed: 05/18/2023]
Abstract
Nanoscale zero-valent iron (NZVI) has a high adsorption capacity for heavy metals, but it forms aggregates easily. In this study, zeolite-supported nanoscale zero-valent iron (Z-NZVI) was synthesized from a simplified liquid-phase reduction of iron(III) salts which simultaneously adsorbed As(III), Cd(II) and Pb(II) from aqueous solution and soil. Scanning electron micrographs showed that aggregation was eliminated and the NZVI evenly dispersed onto the surface of zeolite. FTIR spectra reveal that NZVI was protected from oxidization on the surface of Z-NZVI. XRD and XPS patterns confirmed the formation of Cd(OH)2, Pb0, and FeAsO4 in Z-NZVI after adsorption. The experimental maximum adsorption capacity of Z-NZVI was 11.52mg As(III)/g, 48.63mg Cd(II)/g, and 85.37mg Pb(II)/g at pH 6, respectively, much higher than that of zeolite. Batch experiments indicate that various adsorption mechanisms including electrostatic adsorption, ionic exchange, oxidation, reduction, co-precipitation, and complexation coexisted with the selected heavy metals. Due to the formation of multiphase compounds on the Z-NZVI, the synergy and competition among heavy metals were concurrent. Most arsenic, cadmium and lead in the soil samples were immobilized after mixing with 30g/kg Z-NZVI. These results suggest that Z-NZVI has great potential for treating water and soil multi-contaminated with heavy metals.
Collapse
Affiliation(s)
- Zhangtao Li
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Lu Wang
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Jun Meng
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Xingmei Liu
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China.
| | - Jianming Xu
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Fan Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
| | - Philip Brookes
- College of Environmental & Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
36
|
Li R, Liang W, Huang H, Jiang S, Guo D, Li M, Zhang Z, Ali A, Wang JJ. Removal of cadmium(II) cations from an aqueous solution with aminothiourea chitosan strengthened magnetic biochar. J Appl Polym Sci 2018. [DOI: 10.1002/app.46239] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ronghua Li
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Wen Liang
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Hui Huang
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Shuncheng Jiang
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Di Guo
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Manlin Li
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Zengqiang Zhang
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Amajd Ali
- College of Natural Resources and Environment; Northwest A&F University; Yangling Shaanxi 712100 People's Republic of China
| | - Jim J. Wang
- Agricultural Center, School of Plant, Environmental, and Soil Sciences; Louisiana State University; Baton Rouge Louisiana
| |
Collapse
|
37
|
Borah R, Kumari D, Gogoi A, Biswas S, Goswami R, Shim J, Begum NA, Kumar M. Efficacy and field applicability of Burmese grape leaf extract (BGLE) for cadmium removal: An implication of metal removal from natural water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 147:585-593. [PMID: 28923723 DOI: 10.1016/j.ecoenv.2017.09.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 08/29/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
Burmese Grape Leaf Extract (BGLE), a low cost adsorbent was studied for cadmium (Cd(II)) removal from metal solutions and natural water samples. Batch adsorption studies were carried out to examine the influence of contact time and initial metal concentration after characterization under scanning electron microscopy (SEM). Cd(II)adsorptiononto BGLE was best explained by pseudo-second order kinetics (R2 = 0.99) and best fitted with Langmuir isotherm model (R2 = 0.76). Beside the selective adsorption activity of BGLE towards Cd(II), only 0.1g of BGLE have shown effective adsorption of these ions with a maximum adsorption capacity (qm) of 44.72mgg-1. This study was a unique combination of laboratory experiments and field implication. Study indicates that same efficacy cannot be obtained in natural water samples as obtained in the case of laboratory due to the interference of major ions in water.
Collapse
Affiliation(s)
- Rinkumoni Borah
- Department of Environmental Science, Tezpur University, Napaam 784028, Assam, India
| | - Deepa Kumari
- Department of Chemistry, Visva Bharati University, Santiniketan 731235, West Bengal, India
| | - Anindita Gogoi
- Department of Environmental Science, Tezpur University, Napaam 784028, Assam, India
| | - Sunayana Biswas
- Department of Environmental Science, Tezpur University, Napaam 784028, Assam, India
| | - Ritusmita Goswami
- Department of Environmental Science, Tezpur University, Napaam 784028, Assam, India
| | - Jaehong Shim
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE 68583-0817, USA
| | - Naznin Ara Begum
- Department of Chemistry, Visva Bharati University, Santiniketan 731235, West Bengal, India
| | - Manish Kumar
- Department of Environmental Science, Tezpur University, Napaam 784028, Assam, India; Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat 832855, India.
| |
Collapse
|
38
|
Jin Y, Teng C, Yu S, Song T, Dong L, Liang J, Bai X, Liu X, Hu X, Qu J. Batch and fixed-bed biosorption of Cd(II) from aqueous solution using immobilized Pleurotus ostreatus spent substrate. CHEMOSPHERE 2018; 191:799-808. [PMID: 29080541 DOI: 10.1016/j.chemosphere.2017.08.154] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/22/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
To prevent the blockage in a continuous fix-bed system, Pleurotus Ostreatus spent substrate (POSS), a composite agricultural waste, was immobilized into granular adsorbents (IPOSS) with polymeric matrix, and used to remove Cd(II) from synthetic wastewater in batch experiment as well as in continuous fixed-bed column system. In batch experiment, higher pH, temperature and Cd(II) initial concentration were conducive to a higher biosorption capacity, and the maximum biosorption capacity reached up to 87.2 mg/g at Cd(II) initial concentration of 200 mg/L, pH 6 and 25 °C. The biosorption of Cd(II) onto IPOSS followed the Langmuir isotherm model with the maximum adsorption capacity(qmax) of 100 mg/g. The biosorption was an endothermic reaction and a spontaneous process based on positive value of ΔH0 and negative value of ΔG0. In fixed-bed column system, higher bed depth, lower flow rate and influent Cd(II) concentration led to a longer breakthrough and exhaustion time, and the best performance (equilibrium uptake (qe) of 14.4 mg, breakthrough time at 31 h and exhaustion time at 78 h) was achieved at a bed depth of 110 cm, a flow rate of 1.2 L/h and an influent concentration of 100 mg/L. Furthermore, regeneration experiment revealed a good reusability of IPOSS with 0.1 M HNO3 as eluting agent during three cycles of adsorption and desorption. Cd(II) biosorption onto IPOSS mainly relied on a chemical process including ion exchange and complexation or coordination revealed by SEM-EDX, FTIR and XRD analysis.
Collapse
Affiliation(s)
- Yu Jin
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Chunying Teng
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Sumei Yu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Tao Song
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Liying Dong
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Jinsong Liang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Xin Bai
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Xuesheng Liu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Xiaojing Hu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Juanjuan Qu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
| |
Collapse
|
39
|
Ghazi ZA, Khattak AM, Iqbal R, Ahmad R, Khan AA, Usman M, Nawaz F, Ali W, Felegari Z, Jan SU, Iqbal A, Ahmad A. Adsorptive removal of Cd2+ from aqueous solutions by a highly stable covalent triazine-based framework. NEW J CHEM 2018. [DOI: 10.1039/c8nj01778f] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous crystalline materials such as covalent organic frameworks (COFs) have gained tremendous popularity in multidisciplinary areas of science and technology.
Collapse
|
40
|
Amin MT, Alazba AA, Shafiq M. Removal of Copper and Lead using Banana Biochar in Batch Adsorption Systems: Isotherms and Kinetic Studies. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2934-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
41
|
A review on waste-derived adsorbents from sugar industry for pollutant removal in water and wastewater. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.063] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
42
|
Zhu M, Zhu L, Wang J, Yue T, Li R, Li Z. Adsorption of Cd(II) and Pb(II) by in situ oxidized Fe 3O 4 membrane grafted on 316L porous stainless steel filter tube and its potential application for drinking water treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 196:127-136. [PMID: 28284130 DOI: 10.1016/j.jenvman.2017.02.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/24/2017] [Accepted: 02/26/2017] [Indexed: 06/06/2023]
Abstract
Removing heavy metal ions from aqueous solutions is one of the most challenging separations. In situ oxidized Fe3O4 membranes using 316L porous stainless steel filter tube have shown great potential for removing anion Cr(VI). Here we report the performances of the in situ oxidized Fe3O4 membranes for removing two toxic cations Cd(II) and Pb(II) commonly existing in water and their potential applications for drinking water purification. The membranes exhibited high removal efficiency: 97% at pH 9.0 for Cd(II) of 1.0 mg/L initial concentration and 100% at pH 5.0-6.0 for Pb(II) of 5.0 mg/L initial concentration. The maximum adsorption capabilities were estimated at 0.800 mg/g and 2.251 mg/g respectively for Cd(II) and Pb(II) at 318 K by the Langmuir model. Results of batch tests revealed the existence of electrostatic attraction and chemisorption. XRD and FT-IR analyses indicated that the chemisorption might be the insertion of Cd(II) and Pb(II) into the Fe3O4 crystal faces of 311 and 511 to form mononuclear or binuclear coordination with O atoms of Fe-O6 groups. Competitive adsorption of Cd(II) and Pb(II) in binary solutions revealed a preferential adsorption for Pb(II). Na2EDTA solution was used to regenerate the membranes, and the maximum desorption ratio was 90.29% and 99.75% respectively for Cd(II) and Pb(II). The membranes were able to efficiently lower Cd(II) and Pb(II) concentrations to meet the drinking water standards recommended by the World Health Organization and are promising for engineering applications aimed at drinking water purification.
Collapse
Affiliation(s)
- Mengfei Zhu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Li Zhu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Ronghua Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Zhonghong Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| |
Collapse
|
43
|
Li B, Yang L, Wang CQ, Zhang QP, Liu QC, Li YD, Xiao R. Adsorption of Cd(II) from aqueous solutions by rape straw biochar derived from different modification processes. CHEMOSPHERE 2017; 175:332-340. [PMID: 28235742 DOI: 10.1016/j.chemosphere.2017.02.061] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/14/2017] [Accepted: 02/10/2017] [Indexed: 05/27/2023]
Abstract
In order to deal with cadmium (Cd(II)) pollution, three modified biochar materials: alkaline treatment of biochar (BC-NaOH), KMnO4 impregnation of biochar (BC-MnOx) and FeCl3 magnetic treatment of biochar (BC-FeOx), were investigated. Nitrogen adsorption-desorption isotherms, Fourier transform infrared spectroscopy (FTIR), Boehm titration, and scanning electron microscopy (SEM) were used to determine the characteristics of adsorbents and explore the main adsorption mechanism. The results show that manganese oxide particles are carried successfully within the biochar, contributing to micropore creation, boosting specific surface area and forming innersphere complexes with oxygen-containing groups, while also increasing the number of oxygen-containing groups. The adsorption sites created by the loaded manganese oxide, rather than specific surface areas, play the most important roles in cadmium adsorption. Batch adsorption experiments demonstrate a Langmuir model fit for Cd(II), and BC-MnOx provided the highest sorption capacity (81.10 mg g-1). The sorption kinetics of Cd(II) on adsorbents follows pseudo-second-order kinetics and the adsorption rate of the BC-MnOx material was the highest (14.46 g (mg·h)-1). Therefore, biochar modification methods involving KMnO4 impregnation may provide effective ways of enhancing Cd(II) removal from aqueous solutions.
Collapse
Affiliation(s)
- Bing Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Lan Yang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Chang-Quan Wang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China.
| | - Qing-Pei Zhang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Qing-Cheng Liu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Yi-Ding Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Rui Xiao
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| |
Collapse
|
44
|
Selective solid phase extraction and determination of trace Pd(II) using multi-walled carbon nanotubes modified with 8-aminoquinoline. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
45
|
Esfandiyari T, Nasirizadeh N, Ehrampoosh MH, Tabatabaee M. Characterization and absorption studies of cationic dye on multi walled carbon nanotube–carbon ceramic composite. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.09.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
46
|
Pakade VE, Nchoe OB, Hlungwane L, Tavengwa NT. Sequestration of hexavalent chromium from aqueous solutions by activated carbon derived from Macadamia nutshells. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 75:196-206. [PMID: 28067660 DOI: 10.2166/wst.2016.506] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The purpose of this study was to investigate the feasibility of activated carbons prepared from Macadamia nutshells as an efficient adsorbent for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions. The activated carbon was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), CHNS analyzer and Brunauer-Emmett-Teller (BET). For effective removal of Cr(VI), the optimum parameters found were pH 2, 120 min of contact time and 0.2 g of sorbent. The adsorption data fitted well into the Freundlich model, suggesting a multilayer sorption process. The results demonstrated that Macadamia activated carbon could be used as cost-effective biosorbent for the treatment of aqueous solutions contaminated by Cr(VI) with an adsorption capacity of 22.3 mg g-1. The mode of removal involved adsorption and reduction of Cr(VI) to Cr(III).
Collapse
Affiliation(s)
- V E Pakade
- Department of Chemistry, Faculty of Applied and Computer Sciences, Vaal University of Technology, Private Bag x 021, Vanderbijlpark 1900, South Africa E-mail:
| | - O B Nchoe
- Department of Chemistry, Faculty of Applied and Computer Sciences, Vaal University of Technology, Private Bag x 021, Vanderbijlpark 1900, South Africa E-mail:
| | - L Hlungwane
- Department of Chemistry, Faculty of Applied and Computer Sciences, Vaal University of Technology, Private Bag x 021, Vanderbijlpark 1900, South Africa E-mail:
| | - N T Tavengwa
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Johannesburg 2050, South Africa
| |
Collapse
|
47
|
Albishri HM, Marwani HM. Chemically modified activated carbon with tris(hydroxymethyl)aminomethane for selective adsorption and determination of gold in water samples. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2011.03.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
48
|
Mubarak NM, Sahu JN, Abdullah EC, Jayakumar NS. Rapid adsorption of toxic Pb(II) ions from aqueous solution using multiwall carbon nanotubes synthesized by microwave chemical vapor deposition technique. J Environ Sci (China) 2016; 45:143-155. [PMID: 27372128 DOI: 10.1016/j.jes.2015.12.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/31/2015] [Accepted: 01/04/2016] [Indexed: 06/06/2023]
Abstract
Multiwall carbon nanotubes (MWCNTs) were synthesized using a tubular microwave chemical vapor deposition technique, using acetylene and hydrogen as the precursor gases and ferrocene as catalyst. The novel MWCNT samples were tested for their performance in terms of Pb(II) binding. The synthesized MWCNT samples were characterized using Fourier Transform Infrared (FT-IR), Brunauer, Emmett and Teller (BET), Field Emission Scanning Electron Microscopy (FESEM) analysis, and the adsorption of Pb(II) was studied as a function of pH, initial Pb(II) concentration, MWCNT dosage, agitation speed, and adsorption time, and process parameters were optimized. The adsorption data followed both Freundlich and Langmuir isotherms. On the basis of the Langmuir model, Qmax was calculated to be 104.2mg/g for the microwave-synthesized MWCNTs. In order to investigate the dynamic behavior of MWCNTs as an adsorbent, the kinetic data were modeled using pseudo first-order and pseudo second-order equations. Different thermodynamic parameters, viz., ∆H(0), ∆S(0) and ∆G(0) were evaluated and it was found that the adsorption was feasible, spontaneous and endothermic in nature. The statistical analysis revealed that the optimum conditions for the highest removal (99.9%) of Pb(II) are at pH5, MWCNT dosage 0.1g, agitation speed 160r/min and time of 22.5min with the initial concentration of 10mg/L. Our results proved that microwave-synthesized MWCNTs can be used as an effective Pb(II) adsorbent due to their high adsorption capacity as well as the short adsorption time needed to achieve equilibrium.
Collapse
Affiliation(s)
- Nabisab Mujawar Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Sarawak, 98009, Malaysia; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Jaya Narayan Sahu
- Petroleum and Chemical Engineering Programme Area, Faculty of Engineering, Institut Teknologi Brunei, Tungku Gadong, Brunei Darussalam.
| | - Ezzat Chan Abdullah
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, 54100 Kuala Lumpur, Malaysia
| | | |
Collapse
|
49
|
Seslija S, Veljovic D, Kalagasidis Krusic M, Stevanovic J, Velickovic S, Popovic I. Cross-linking of highly methoxylated pectin with copper: the specific anion influence. NEW J CHEM 2016. [DOI: 10.1039/c5nj03320a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly methoxylated pectin was cross-linked using different copper salts. The dependence between anion type, sorption capacity, mechanical and structural properties of obtained beads was found and correlated with Hofmeister theory.
Collapse
Affiliation(s)
- Sanja Seslija
- University of Belgrade
- Institute of Chemistry
- Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | - Djordje Veljovic
- University of Belgrade
- Faculty of Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | | | - Jasmina Stevanovic
- University of Belgrade
- Institute of Chemistry
- Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | - Sava Velickovic
- University of Belgrade
- Faculty of Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | - Ivanka Popovic
- University of Belgrade
- Faculty of Technology and Metallurgy
- 11000 Belgrade
- Serbia
| |
Collapse
|
50
|
Zheng L, Meng P. Preparation, characterization of corn stalk xanthates and its feasibility for Cd (II) removal from aqueous solution. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|