Kinetics and Mechanism of Lead Removal from Effluents by Synthesized TiO2 Nanoparticles Via Sol-Gel Method: Adsorption Studies

Zobia Yaseen *

Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan.

Tabinda Jabeen

Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan.

Ashraf Hussain

Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan.

Muhammad Ismaeel

Department of Mathematics and Statistics, NCBA & E Lahore, Multan sub Campus Multan, Pakistan.

Tayyaba Munawar

Department of Chemistry, University of Agriculture Faisalabad, Sub Campus Burewala, Pakistan.

Ammara Yaseen

Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan.

Muhammad Ramzan

Department of Chemistry, Government College University Faisalabad, Pakistan.

Zarwali Khan

Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan.

Tayyaba Shabir

Department of Chemistry, Women University, Multan 60000, Pakistan.

Nasir Abbas

Department of Chemistry, Quaid-e-Azam University, Islamabad 45320, Pakistan.

*Author to whom correspondence should be addressed.


Water is essential for living organisms, with our bodies containing a significant 60% water content. Water pollution resulting from harmful industrial practices and human activities poses a significant danger to humanity. The release of organic and inorganic substances, pathogens, herbicides, pesticides, drugs, heavy metals, and visible pollutants into water bodies leads to a decline in water quality, causing a reduction in oxygen levels. The toxicity and bioaccumulative properties of heavy metals make them prominent environmental pollutants. Researchers are particularly interested in the adsorption method due to its exceptional ability to eliminate toxic metals, wherein adsorbates bind to the solid surface of adsorbents through physicochemical interactions. In this study, TiO2 nanoparticles were synthesized via solgel method. These nanoparticles were used to remove lead from contaminated water. Various techniques, including XRD and EDX were employed to analyze the nanoparticle synthesis. The Atomic Absorption Spectrophotometer was used to measure the removal of Lead before and after adsorption. Key variables like pH, dosage, and contact time were carefully controlled in the experiments. To ensure the findings, statistical analysis were applied to examine all collected data. The ultimate aim was to enhance the efficiency of heavy metal removal and offer valuable insights into the use of chemically synthesized TiO2 nanoparticles for water purification purposes. This research has the potential to contribute to safer water resources and improved environmental management.

Keywords: Nanotechnology, titanium dioxide nanoparticles, adsorption, sol-gel method, kinetic, equilibrium modeling

How to Cite

Yaseen , Z., Jabeen , T., Hussain , A., Ismaeel , M., Munawar , T., Yaseen , A., Ramzan , M., Khan , Z., Shabir , T., & Abbas , N. (2023). Kinetics and Mechanism of Lead Removal from Effluents by Synthesized TiO2 Nanoparticles Via Sol-Gel Method: Adsorption Studies. Asian Journal of Chemical Sciences, 13(5), 45–56.


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Reichardt K et al. Water, the universal solvent for life. Soil, Plant and Atmosphere: Concepts, Processes and Applications. 2020;7-13.

Estêvão MD. Aquatic pollutants: Risks, consequences, possible solutions and novel testing approaches. MDPI. 2023;97.

Alhujaily A et al. Adsorptive removal of anionic dyes from aqueous solutions using spent mushroom waste. Applied Water Science. 2020;10(7):1-12.

Barletta M, Lima AR, Costa MF. Distribution, sources and consequences of nutrients, persistent organic pollutants, metals and microplastics in South American estuaries. Science of the Total Environment. 2019;651:1199-1218.

Omer NH. Water quality parameters. Water quality-science, assessments and policy. 2019;18:1-34.

Egbueri JC, Mgbenu CN. Chemometric analysis for pollution source identification and human health risk assessment of water resources in Ojoto Province, southeast Nigeria. Applied Water Science. 2020;10(4):1-18.

Mishra S et al. Heavy metal contamination: An alarming threat to environment and human health. Environmental biotechnology: For sustainable future. 2019;103-125.

Sonone SS et al. Water contamination by heavy metals and their toxic effect on aquaculture and human health through food Chain. Lett. Appl. NanoBioScience. 2020;10(2):2148-2166.

Obaideen K et al. The role of wastewater treatment in achieving sustainable development goals (SDGs) and sustainability guideline. Energy Nexus. 2022;7:100112.

Sharma S et al. Developments in visible-light active TiO2/SnX (X= S and Se) and their environmental photocatalytic applications– A mini-review. Inorganic Chemistry Communications. 2021;133: 108874.

Saravanan A et al. Effective water/ wastewater treatment methodologies for toxic pollutants removal: Processes and applications towards sustainable development. Chemosphere. 2021;280: 130595.

Nozadi F et al. Association between trace element concentrations in cancerous and non-cancerous tissues with the risk of gastrointestinal cancers in Eastern Iran. Environmental Science and Pollution Research. 2021;28:62530-62540.

LeBaron TW, Sharpe R, Ohno K. Electrolyzed–reduced water: Review II: safety concerns and effectiveness as a source of hydrogen water. International Journal of Molecular Sciences. 2022; 23(23):14508.

Botté A et al. Lead in the marine environment: concentrations and effects on invertebrates. Ecotoxicology. 2022;1-14.

Zhang Y et al. Lead contamination in Chinese surface soils: Source identification, spatial-temporal distribution and associated health risks. Critical Reviews in Environmental Science and Technology. 2019;49(15):1386-1423.

SANI AH, JAMILU US. Biomarkers of lead in occupationally exposed persons in Gurara and Suleja areas, Niger State, Nigeria. GSC Biological and Pharmaceutical Sciences. 2022;20(2):030-036.

Behera M et al. A review on the treatment of textile industry waste effluents towards the development of efficient mitigation strategy: An integrated system design approach. Journal of Environmental Chemical Engineering. 2021;9(4):105277.

Saleh TA, Mustaqeem M, Khaled M. Water treatment technologies in removing heavy metal ions from wastewater: A review. Environmental Nanotechnology, Monitoring & Management. 2022;17:100617.

Crini G et al. Conventional and non-conventional adsorbents for wastewater treatment. Environmental Chemistry Letters. 2019;17:195-213.

Rathi BS, Kumar PS. Application of adsorption process for effective removal of emerging contaminants from water and wastewater. Environmental Pollution. 2021 ;280:116995.

Capodaglio AG. Fit-for-purpose urban wastewater reuse: Analysis of issues and available technologies for sustainable multiple barrier approaches. Critical Reviews in Environmental Science and Technology. 2021;51(15):1619-1666.

Mittal A et al. Surfactant-assisted hydrothermally synthesized novel TiO 2/SnS@ Pd nano-composite: structural, morphological and photocatalytic activity. Journal of Materials Science: Materials in Electronics. 2020;31:2010-2021.

Amiri MR et al. Antibacterial, antifungal, antiviral, and photocatalytic activities of TiO2 nanoparticles, nanocomposites, and bio-nanocomposites: Recent advances and challenges. Journal of Public Health Research. 2022;11(2): 22799036221104151.

Aslam M, Abdullah AZ, Rafatullah M, Recent development in the green synthesis of titanium dioxide nanoparticles using plant-based biomolecules for environmental and antimicrobial applications. Journal of Industrial and Engineering Chemistry. 2021;98:1-16.

Habibi S, Jamshidi M. Synthesis of TiO2 nanoparticles coated on cellulose nanofibers with different morphologies: Effect of the template and sol-gel parameters. Materials Science in Semiconductor Processing. 2020;109: 104927.

Kang T-H et al. Titanium monoxide with in situ grown rutile TiO2 nanothorns as a heterostructured job-sharing anode material for lithium-ion storage. ACS Applied Energy Materials. 2022;5(5):5691-5703.

Kumar PS, Pavithra KG, Naushad M. Characterization techniques for nanomaterials, in Nanomaterials for solar cell applications. Elsevier. 2019;97-124.

Mostafa AM et al. A comparative study on the color change of pigments due to the consolidation of conventional spectroscopic techniques and laser-induced breakdown spectroscopy. Applied Physics A. 2019;125:1-9.

Bekele ET et al. Synthesis of titanium oxide nanoparticles using root extract of Kniphofia foliosa as a template, characterization, and its application on drug resistance bacteria. Journal of Nanomaterials. 2020;1-10.

Kebir M et al. Pharmaceutical pollutants adsorption onto activated carbon: Isotherm, kinetic investigations and DFT modeling approaches. Comptes Rendus. Chimie. 2022;25(S2):9-25.

Musarurwa H, Tavengwa NT. Stimuli-responsive molecularly imprinted polymers as adsorbents of analytes in complex matrices. Microchemical Journal. 2022; 107750.

Ehtesabi H et al. Carbon dots with pH-responsive fluorescence: a review on synthesis and cell biological applications. Microchimica Acta. 2020;187:1-18.

Zhang L, Hou Y. Comprehensive analyses of aqueous Zn metal batteries: Characterization methods, simulations, and theoretical calculations. Advanced Energy Materials. 2021;11(13):2003823.

Yadav N et al. Technological advancement in the remediation of heavy metals employing engineered nanoparticles: A step towards cleaner water process. Environmental Nanotechnology, Monitoring & Management. 2022;100757.

Hejri Z et al. Synthesis of TiO2/nZVI nanocomposite for nitrate removal from aqueous solution. International Journal of Industrial Chemistry. 2019;10(3):225-236.

El-Bindary M, El-Desouky M, El-Bindary A. Adsorption of industrial dye from aqueous solutions onto thermally treated green adsorbent: A complete batch system evaluation. Journal of Molecular Liquids. 2022;346:117082.

Dargahi A et al. Statistical modeling of phenolic compounds adsorption onto low-cost adsorbent prepared from aloe vera leaves wastes using CCD-RSM optimization: effect of parameters, isotherm, and kinetic studies. Biomass Conversion and Biorefinery. 2021;1-15.

Jiang D et al. Removal of the heavy metal ion nickel (II) via an adsorption method using flower globular magnesium hydroxide. Journal of hazardous materials. 2019;373:131-140.

Revellame ED et al. Adsorption kinetic modeling using pseudo-first order and pseudo-second order rate laws: A review. Cleaner Engineering and Technology. 2020;1:100032.