ADSORPTION OF Cd(II) AND Pb(II) IONS FROM AQUEOUS SOLUTION USING UNMODIFIED AND MODIFIED ADSORBENTS PREPARED FROM DESERT DATE PEELS (Balanites aegyptiaca)
Keywords:
Adsorption; Kinetics; Isotherms; Desert Date peels; ThermodynamicsAbstract
The problem of poor or non-treatment of wastewater is often attributed to high cost of purification methods in our industries. Therefore, there is the need to provide alternative adsorbent of comparative effectiveness but develop from agro-based waste. The purpose of this research was to provide understanding of the mechanisms for the adsorption of Cd(II) and Pb(II) ions from aqueous solutions onto Desert Date peels as adsorbent. This was done through characterization and optimum adsorption conditions of Unmodified and Modified Desert Date Peels (UDD and MDD). A 3 M ZnCl2 was used for the modification of the desert date peel. The results for Fourier-Transform Infrared Spectroscopy (FTIR) of UDD and MDD spectra show broad band peak at 3448.84 cm-1 and 3414.12 cm-1 which corresponds to O-H stretching mode of hydroxyl groups on the surface of the activated carbon. The maximum adsorption capacity of Cd(II) and Pb(II) ions onto UDD and MDD are 94.06 and 80.56 mg/g being observed within 60 min. The adsorption isotherm study ascertains a good correlation coefficient which Langmuir isotherm fitted well into UDD and MDD with (R2) values 0.9893 and 0.9668 and UDD obeyed pseudo second order kinetics model. Thermodynamic studies revealed that the adsorption system was feasible, non-spontaneous and endothermic 6.684 and 8.675 kJ/mol for Cd(II) and Pb(II) ions respectively. The results showed that, both UDD and MDD have the potentials to be applied as alternative low-cost adsorbents in the remediation of heavy metal ions from aqueous solution.
Keywords: Adsorption; Kinetics; Isotherms; Desert Date peels; Thermodynamics
https://doi.org/ 10.5281/zenodo.10580462
References
. Abdus-Salam N, Ikudayisi-Ugbe AV, & Ugbe FA. Adsorptive Removal of Methylene Blue from Synthetic Wastewater Using Date Palm Seeds, Goethite and their Composite. Acta Scientifica Malaysia (ASM), 2021:1(19), 27-35.
. Luo L, Wu X, Li Z, Zhou Y, Chen T, Fan M, & Zhao W. Synthesis of Activated Carbon from Bio-Waste of Fir Bark for Methylene Blue Removal. Royal Society Open Science, 2019:6(9),190523.
. Cong-Hau N, Anh-Dao L, Thanh-Nho N, Huynh-Mai L, Nhon-Duc L, & Minh-Huy D. Chromium (VI) Analysis in Effluents using Liquid-Liquid Extraction Coupled with Flame Atomic Absorption Spectrometry. Malaysian Journal of Analytical Sciences, 2022:26(2), 283-294.
. Lebron YA, Moreira VR, Furtado TP, Silva SC, Lange LC, & Amaral, CS. Treatment using Hybrid Tannin-Based Coagulation-Microfiltration-Nanofiltration Processes: Potential Energy Recovery, Technical and Economic Feasibility Assessment. Separation and Purification Technology, 2020:248(1), 117-152.
. Zhang X. Selective Separation Membranes for Fractionating Organics and Salts for Industrial Wastewater Treatment: Design Strategies and Process Assessment. Journal of Membrane Science, 2022:662(15), 12-52.
. Zhang X, Huang J, Cheng X, Chen H, Liu Q, Yao P, Ngo HH, & Nghiem LD. Mitigation of Reverse Osmosis Membrane Fouling by Electrochemical-Microfiltration-Activated Carbon Pretreatment. Journal of Membrane Science, 2022:656(12), 06-15.
. Mykola G, Shabliy T, Makarenko I, & Vakulenko A. Efficiency of Reverse Osmosis and Ion Exchange in Water Purification from Nitrates. Journal of Ecological Engineering, 2022: 23(10), 172–180.
. Fil BA, Elgün C, Cihan SA, Günaslan S. & Yılmaz AE. Investigation of Nickel Removal from Heavy Metal Containing Industrial Wastewater by Electrocoagulation Method. Journal of Electrochemical Science Technology, 2022:4(10), 424-430.
. Singh SK, Sharma C, & Abhijit MA. Comprehensive Review of Standalone and Hybrid Forward Osmosis for Water Treatment: Membranes and Recovery Strategies of Draw Solutions. Journal of Environmental Chemical Engineering, 2019:9(8), 105-473.
. Udayakumar S, & Praveen K. Chapter 16 Advancements in Industrial Wastewater Treatment by Integrated Membrane Technologies: In Integrated Environmental Technologies for Wastewater Treatment and Sustainable Development. Elsevier: Amsterdam, The Netherlands, 2022:(14), 69–382.
. Adam MR, Othman MHD, Kurniawan TA, Puteh MH, Ismail AF, Khongnakorn W, Rahman MA, & Jaafar J. Advances in Adsorptive Membrane Technology for Water Treatment and Resource Recovery Applications: A Critical Review. Journal of Environmental Chemical Engineering, 2022:10(6), 107-133.
. Shafiq M, Alazba AA, & Amin MT. Removal of Heavy Metals from Wastewater using Date Palm as a Biosorbent: A Comparative Review. Sains Malays, 2018:47(16), 35–49.
. Korpe S, & Rao PVK. Application of Advanced Oxidation Processes and Cavitation Techniques for Treatment of Tannery Wastewater. A Review. Journal of Environmental Chemical Engineering, 2021:9(5), 105-234.
. Genawi NM, Ibrahim MH, El-Naas MH, & Alshaik AE. Chromium Removal from Tannery Wastewater by Electrocoagulation: Optimization and Sludge Characterization. Water, 2020:12(6), 13-74.
. Ang WL, Mohammad AW, Johnson D, & Hilal N. Forward Osmosis Research Trends in Desalination and Wastewater Treatment: A Review of Research Trends Over the Past Decade. Journal of Water Processing Engineering, 2019:31(6), 775–788.
. Wu X, Lau CH, Pramanik BK, Zhang J, & Xie Z. State-of-the-Art and Opportunities for Forward Osmosis in Sewage Concentration and Wastewater Treatment. Membranes, 2021:11(2), 305.
. Dos Santos JD, Veit MT, Palácio SM, Gonçalves G. & Fagundes-Klen, MR Evaluation of the Combined Process of Coagulation/flocculation and Microfiltration of Cassava Starch Wastewater: Removal Efficiency and Membrane Fouling. Water, Air and Soil Pollution Journal, 2017:228(22), 238.
. Alkali MI, Abdus-Salam N, Bello MO, Oyewumi-Musa RT, Jimoh AA, Dikwa MK & Abdullahi MM Adsorption of Cr (VI) ion from Aqueous Solution Using Unmodified Desert Date Peels (Balanites aegyptiaca) Composite with MWCNTs: Isotherm and Kinetic Studies. Arid Zone Journal Basic and Applied Research, AJBAR 2022:1(5), 103-125.
. Abdus‑Salam N, Ikudayisi VA, & Ugbe FA. Adsorption Studies of Acid Dye-Eosin Yellow on Date Palm Seeds Goethite and their Composite. Chemical Data Collections, 2021:31(10), 100626.
. Buhari M, Maigari AU, Abubakar UA, & Sani MM. Batch Adsorption of Safranin Dye from an Aqueous Solution of Balanites aegyptiaca Seed Coats. Asian Journal of Physical and Chemical Sciences, 2020:1(8), 48-54.
. Adekola FA, Abdus-Salam N, & Abdul- Rauf LB. Removal of Arsenic from Aqueous Solution by Synthetic Hematite. Journal of Chemical Society of Nigeria, 2011:36(2), 52–58.
. Adebayo GB, Mohammed AA. & Sokoya SO. Biosorption of Fe (II) and Cd (II) ions from aqueous solution using a lowcost Adsorbent from Orange Peels. Journal of Applied Science and Environmental Management, 2016:20(3), 702-714.
. Ayob S, Othman N, Altowayti WAA, Khalid FS, Abu-Bakar N, Tahir M, Soedjono ES. A Review on Adsorption of Heavy Metals from Wood-Industrial Wastewater by Oil Palm Waste. Journal of Ecological Engineering, 2021:3(22), 249–265.
. Abdus‑Salam N, & Adekola SK. Adsorption Studies of zinc(II) on magnetite, baobab (Adansonia digitata) and magnetite–baobab composite. Applied Water Science, 2018: 222(8), 1-11.
. Abdullah N, Yusofa N, Lau WJ, Jaafar J, & Ismail AF. Recent trends of heavy metal removal from water/wastewater by membrane. Journal of Industrial and Engineering Chemistry, 2019: 25(6), 17-38.
. Zümriye A. Application of Biosorption for the Removal of Organic Pollutants: A Review. Process Biochemistry, 2005:15(40): 997–1026.
. Adegoke HI, Adekola FA, & Abdulraheem MN. Kinetic and Thermodynamic Studies on Adsorption of Sulphate from Aqueous Solution by Magnetite, Activated Carbon and Magnetite-Activated Carbon Composites. Nigerian Journal of Chemical Research, 2017:22(1), 39-65.
. Rathore M, & Meena RK. Nutritional Evaluation of Some Famine Foods of Rajasthan desert. Indian Forester, 2004:3(2), 304-312.
. Wilson O, Nadro MS, & Tiyafo GO. Wurochekke. Journal of American Science, 2009:5(6), 13-16.
. Mohamed AM, Wolf W. & Speiss WL. Plant Foods for Human Nutrition, 2002:57(21), 179-189.
. Alkali MI, Abdus-Salam N, Dikwa MK, Oyewumi-Musa RT, Jimoh, AA, Ojo I. & Godwin J. Adsorption of Pb (II) ion onto Modified Doum Palm (Hyphaene thebaica) Shells: Isotherm, Kinetic and Thermodynamic Studies. Arid Zone Journal Basic and Applied Research, 2022:1(5), 80-102.
. Gupta VK, Mittal A, Krishnan L, & Gajbe J. Adsorption Kinetics and Column Operations for the Removal and Recovery of Malachite Green from Wastewater Using Bottom Ash, Separation and Purification Technology, 2004: 40(12), Pp. 87.
. Abdus-Salam N, & Buhari M. Adsorption of Alizarin and Fluorescein Dyes on Adsorbent Prepared from Mango Seed. The Pacific Journal of Science and Technology, 2014: 15(1), 232-235.
. Abdus-Salam N. & Ikudayisi VA. Preparation and Characterization of Synthesized Goethite and Goethite-Date Palm Seeds Charcoal Composite. Ife Journal of Science, 2017:19(1), 99-107.
. Adebayo GB, Abdus-Salam N, & Alimi, ES. Adsorption of Lead (II) ions by Activated Carbon Prepared from Different Parts of Jatropha curcas Plant. Publication of Faculty of Science, Unilorin, Ilorin Journal of Science, 2014:1(3), 28-49.
. Mahdavian L. Effects of Magnetic Field, pH and Retention Time on the Lead (Pb2+) Adsorption by Modified Human Hair, Goat Hair and Sheep Wool. African Journal of Microbiology Research, 2012:21(6) 183-189.
. Ltifi I, Ayari F, Hassen-Chehimi DB, & Ayadi, MT. Study of the Adsorption of Bright Green by a Natural Clay and Modified. Journal of Material Sciences and Engineering, 2017:5(6) 1-7.
. Abdus-Salam N, & Bello MO. Kinetics, Thermodynamics and Competitive Adsorption of Lead and Zinc Ions onto Termite Mound. International Journal of Environmental Science and Technology, 2015:2(12), 3417–3426.
. Abdus-Salam N, & Buhari M. Adsorption of Alizarin and Fluorescein Dyes onto Palm Seeds Activated Carbon: Kinetic and Thermodynamic Studies. Journal of the Chemical Society of Pakistan, 2016:38(4), 604-612.
. Freundlich H. Adsorption in Solutions. Physical Chemistry, 1906:57(8), 385 –470.
. Dada AO, Adekola FA, Odebunmi EO, Inyinbor AA, Akinyemi BA, & Adesewa ID. Kinetics and Thermodynamics of Adsorption of Rhodamine B onto Bentonite Supported Nanoscale Zerovalent Iron Nanocomposite. 3rd International Conference on Science and Sustainable Development (ICSSD), 2019: 1299(8), 1–10.
. Ugbe FA, & Abdus-Salam N. Kinetics and Thermodynamic Modelling of Natural and Synthetic Goethite for Dyes Scavenging from Aqueous Systems. Arabian Journal of Chemical and Environmental Research, 2020:7(1), 12–28.
. Lagergren S. About the Theory of so-called Adsorption of Soluble Substances. Kungliga Svenska Vetenskapsakademiens Handlingar, 1898: 4(24), 1-39.
. Ngugi F, Mwangi J, Njagi E, & Ombaka O. Adsorption of Lead (II) Ions from Aqueous Solutions Using Mangroves Roots (Rhizophora Mucronata) Charcoal-Carbon Nanotubes Nanocomposite. Journal of Multidisciplinary Engineering Science and Technology (JMEST), 2021: 8(2), 1-7.
. Sulejmanović J, Šabanović E, Begić S, & Memić M. Molybdenum (VI) Oxide-Modified Silica Gel as a Novel Sorbent for the Simultaneous Solid-Phase Extraction of Eight Metals with Determination by flame Atomic Absorption Spectrometry. Analytical Letter, 2019(52), 588–601.
. Nguyen KM, Nguyen BQ, Nguyen HT, & Nguyen THH. Adsorption of Arsenic and Heavy Metals from Solutions by Unmodified Iron-Ore Sludge. Applied Science Journal, 2019:619(9), 1-14.
. Kibami D, Pongener, C, Rao KS, & Sinha, D. Surface Characterization and Adsorption of Bambusa vulgaris- A Lowcost Adsorbent. Journal of Material Environmental Sciences, 2017: 8(1), 2494-2505.
. Falah HH, Ahmed FH, Abbas JL, & Zahraa HA. Preparation and Characterization of Activated Carbon from Iraqi Khestawy Date Palm. Journal of Chemistry, 2015:13(1), 1-8.
. Saygili H, & Guzel F. Noval Sustainable Precursor for High-Quality Activated Carbon Preparation by Conventional Pyrolysis: Optimization of Produce Conditions and Feasibility in Adsorption Studies. The Society of Advanced Powder Technology, Japan, 2017:10(1), 1-12.
. Gao Y, Yue Q, Gao B, Sun Y, Wang W, Li Q, & Wang Y. Preparation of High Surface Area Activated Carbon from Lignin of Paper Making Black Liquor by KOH Activation for Ni (II) Adsorption. Chemical Engineering Journal, 2013:217(5), 345-353.
. Viena V. & Nizar M.E. Characterization of Activated Carbon prepared from Banana Peels: Effect of Chemical Activators on the Adsorption of Gas Emissions. Journal of Physics: Conference Series, 2019:1232(2), 1-2.
. Hesas RH, Arami-Niyaa WMA. & Dauda, JNS. Comparison of Oil Palm Shell-Based Activated Carbons Produced by Microwave and Conventional Heating Methods using Zinc Chloride Activation. Journal of analytical Applied Pyrolysis, 2013:104(4), 176-184.
. Boudaoud A, Djedid M, Benalia M, Chifaa A, Bouzar N. & Elmsellem H. Removal of Nickel (II) and Cadmium (II) ions from Wastewater by Palm Fibers. Scientific Study and Research Journal, 2017:18(4), 391-406.
. Vukovic GD. & Marinkovic, AD. Removal of Cadmium from Aqueous Solutions by Oxidized and Ethylenediamine Functionalized Multi-Walled Carbon Nanotubes. Chemical Engineering Journal, 2011:1(15), 238-248.
. Giwa SO, Moses JS, Adeyi AA. & Giwa, A. Adsorption of Atrazine from Aqueous Solution Using Desert Date Seed Shell Activated Carbon. ABUAD Journal of Engineering Research and Development, 2019:3(1), 317-325.
. Gaya UI, Otene E. & Abdullah AH. Adsorption of aqueous Cd (II) and Pb (II) on activated carbon Nanopores Prepared by Chemical Activation of Doum Palm Shell. Springer Plus, 2015:458(4), 1-18.
. Abdussalam A. Evaluation of Adsorption Isotherms and Industrial Wastewater Treatment for COD Reduction Using Acid Impregnated Peanut Shell Activated Carbon. Asian Journal of Physical and Chemical sciences, 2017:2(3), 1-11.
. Rahimi E. & Mohaghegh N. Removal of Toxic Metal Ions from Sungun Acid Rock Drainage using Mordenite Zeolite, Graphene Nanosheets, and a Novel Metal–Organic Framework. Mine Water and the Environment, 2017:4(1), 18-28.
. Labied R, Benturki O, Hamitouche AE. & Donnot A. Adsorption of Hexavalent Chromium by Activated Carbon obtained from a Waste Lignocellulosic Material (Ziziphus jujuba cores): Kinetic, Equilibrium, and Thermodynamic Study. Adsorption Science & Technology, 2018:36(3-4), 1066–1099.
. Azeez SO. & Adekola FA. Sorption of 4-Nitroaniline on Activated Kaolinitic Clay and Jatropha curcas Activated Carbon in Aqueous Solution. Pakistan Journal of Analytical and Environmental Chemistry, 2016:9(17), 105-145.
. Huang H, Wang Y, Zhang Y, Niu Z. & Li X. Amino-Functionalized Graphene Oxide for Cr (VI), Cu (II), Pb (II) and Cd (II) Removal from Industrial Wastewater. Open Chemistry, 2020:1(18), 97–107.
. Nwosu FO, Olu-owolabi BI. & Adebowale KO. Preparation and Characterization of Active carbons from some Nutshells using Carbon-dioxide activation. Nigerian Journal of Scientific Research, 2015: 2(14), 112-115.
. Anna B, Kleopas M, Constantine S, Anestis F.& Maria B. Adsorption of Cd (II), Cu (II), Ni (II) and Pb (II) onto Natural Bentonite: Study in Mono- and Multi-Metal Systems. Environmental Earth Science, 2015: 73(12), 5435–5444.
. Habte L, Shiferaw N, Khan MD, Thriveni T. & Ahn, JW. Sorption of Cd2+ and Pb2+ on Aragonite Synthesized from Eggshell. Sustainability, 2020: 1174(12), 1-15.
. Yunusa U, & Ibrahim MB. Reclamation of Malachite Green-Bearing Wastewater Using Desert Date Seed Shell: Adsorption Isotherms, Desorption and Reusability Studies. ChemSearch Journal, 2019: 10(2), 112 – 122.
. Alghamdi AA, Al-Odayni AB, Saeed WS, Al-Kahtani A, Alharthi FA, & Aouak T. Efficient Adsorption of Lead(II), from Aqueous Phase Solutions using Polypyrrole-Based Activated Carbon. Materials, 2019:12(8), 20-29.
. Zhang J, Li Y, Zhang C, & Jing Y. Adsorption of Malachite Green from Aqueous Solution onto Carbon Prepared from Arundo donax Root. Journal of Hazardous Materials, 2008:150(10), 774-782.
. Malakootian M, Nouri J, & Hossaini H. Removal of Heavy Metals from Paint Industry's Wastewater using Leca as an Available Adsorbent. International Journal of Environmental Science Technology, 2009:(6), 183-190.
. Ugbe FA, & Ikudayisi VA. The kinetics of Eosin Yellow Removal from Aqueous Solution using Pineapple Peels. Edorium Journal of Waste Management, 2017:9(2), 5–11.
. Makeswari M, & Santhi, T. Optimization of Preparation of Activated Carbon from Ricinus communis Leaves by Microwave-Assisted Zinc Chloride Chemical Activation: Competitive Adsorption of Ni2+ Ions from Aqueous Solution. Journal of Chemistry, 2013:3(10), 1-12.
. Yunusa U, Usman B, & Ibrahim MB. Kinetic and Thermodynamic Studies of Malachite Green Adsorption using Activated Carbon Prepared from Desert Date Seed Shell. Algerian Journal of Engineering and Technology, 2020:1(2), 1-10.
. Gupta VK, & Suhas, TL. Application of Low-Cost Adsorbents for Dye Removal. A review. Journal Environmental Management, 2009:67(90), 2313-2342.
. Gupta SS, & Bhattacharyya KG. Immobilization of Pb (II), Cd (II) and Ni (II) Ions on Kaolinite and Montmorillonite Surfaces from Aqueous Medium. Journal Environmental Management, 2008:87(2), 46–58.
. Jain M, Garg VK, Garg UK, Kadirvelu K. & Sillanpää M. Cadmium Removal from Wastewater using Carbonaceous Adsorbents Prepared from Sunflower Waste. International Journal of Environmental Resource, 2015:3(9), 1079-1088.
. Godwin J, Abdus-Salam N, Adegoke IH, Bello MO, Inyang ED, Alkali MI. and Tripathy, BC. High performance Nano hybrid ZnO-α-FeOOH Nanocomposite Prepared for Toxic Metal Ions Removal from Wastewater: Combined Sorption and Desorption Studies. Inorganic Chemistry Communications (Elsevier) 2022.
. Chowdhury S. & Saha P. Utilization of a Domestic Waste Eggshells for Removal of Hazardous Malachite Green from Aqueous Solutions. Environmental Progress and Sustainable Energy, 2011:27(2), 415-425.
. Elaigwu SE, Usman LA, Awolola GV, Adebayo GB. & Ajayi RMK. Adsorption of Pb (II) from Aqueous Solution by Activated Carbon Prepared from Cow Dung. Advances in Natural and Applied Sciences, 2009:3(3), 442-446.
. Ugbe FA. & Abdus-Salam N. Kinetics and Thermodynamic Modelling of Natural and Synthetic Goethite for Dyes Scavenging from Aqueous Systems. Arabian Journal of Chemical and Environmental Research, 2009:1(7): 12–28.
. Lawal OS, Sanni AR, Ajayi IA. & Rabiu OO. Equilibrium, Thermodynamic and Kinetic Studies for the Biosorption of Aqueous Lead(II) Ions onto the Seed Husk of Calophyllum inophyllum. Journal of Hazardous Material, 2010:177(3), 829–835.
. Adebayo GB, Adegoke HI. & Fauzeeyat S. Adsorption of Cr(VI) Ions onto Goethite, Activated Carbon and their Composite: Kinetic and Thermodynamic Studies. Applied Water Science, 2020: 213(10), 13-18.
. Dada AO, Latona DF, Ojediran OJ. & Nath OO. Adsorption of Cu (II) onto Bamboo Supported Manganese (BS-Mn) Nanocomposite: Effect of Operational Parameters, Kinetic, Isotherms, and Thermodynamic Studies, Journal Applied Science and Environmental Management, 2016: 58(20), 409-422.
. Hao YM, Chen M, Hu ZB. Effective removal of Cu (II) ions from Aqueous Solution by Amino Functionalized Magnetic Nanoparticles, Journal of Hazardous Materials, 2010:5(184), 392–399.
. Danmallam AA, Dabature WL, Pindiga NY, Magaji B, Aboki MA Ibrahim D, Zanna UAS. & Muktar MS. The Kinetics of the Adsorption Process of Cr (VI) in Aqueous Solution Using Neem Seed Husk (Azadirachta indica) Activated Carbon. Physical Science International Journal, 2020: 1(24), 1-13.
. Wu H, Chen R, Du H, Zhang J, Shi, L, Qin Y, Yue L, & Wang J. Synthesis of Activated Carbon from Peanut Shell as Dye adsorbent for Wastewater Treatment. Adsorption Science and Technology, 2019:4(37), 34-48.
. Akinyeye OJ, Ibigbami TB, Odeja OO, & Sosanolu OM. Evaluation of Kinetics and Equilibrium Studies of Biosorption Potentials of Bamboo Stem Biomass for Removal of Lead (II) and Cadmium (II) Ions from Aqueous Solution. African Journal of Pure and Applied Chemistry, 2020:14(2), 24-41.
. Ghasemi M, Naushad M, Ghasemi N. & Khosravi-Fard Y. Adsorption of Pb (II) from Aqueous Solution using New Adsorbents Prepared from Agricultural Waste: Adsorption Isotherm and Kinetic Studies. Journal of Industrial and Engineering Chemistry, 2014:1(20), 2193-2199.
. Gaya UI, Otene E, & Abdullah AH. Adsorption of aqueous Cd (II) and Pb (II) on Activated Carbon Nanopores Prepared by Chemical Activation of Doum Palm Shell. Springer Plus, 2015: 458(4), 1-18.
. Dada AO, Inyinbor AA, Idu EI, Bello OM, Oluyori AP, Adelani-Akande TA, Okunola AA, & Dada O. Effect of Operational Parameters, Characterization and Antibacterial Studies of Green Synthesis of Silver Nanoparticles using Tithonia diversifolia. Peer Journal, 2018:13(9), 1-17.
. Dada AO, Adekola FA, & Odebunmi EO. Liquid Phase Scavenging of Cd (II) and Cu (II) Ions onto Novel Nanoscale Zerovalent Manganese (nZVMn): Equilibrium, Kinetic and Thermodynamic Studies. Environmental Nanotechnology, Monitoring & Management, 2017:10(8), 63-72.
