Fine-template synthetic process of mesoporous TiO2 using ionic/nonionic surfactants as potential remediation of Pb(II) from contaminated soil
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This trend of research deals with preparation of mesoporous TiO2 by a simple approach using sol–gel method by various surfactant templates. The designed nano-adsorbents TiO2 were featured by various characterization methods of Fourier transform infrared, X-ray diffraction, surface area analysis (Brunauer–Emmett–Teller), transmission electron microscope, and scanning electron microscope. These obtained nano-adsorbents are examined as functional adsorbents for lead ions up taking from contaminated soil specimens. The results presented the effect of ionic and nonionic surfactant templates on the texture of the three types of mesoporous TiO2 nano-adsorbents. The effects of the temperature, pH, and amount of nano-adsorbents TiO2 on the adsorption process were studied. The optimum conditions of 25 °C, 5, and 0.1 g were obtained for temperature, pH, and amount of adsorbents, respectively. The obtained results revealed that about 97.6, 99.1, and 95.3% of total adsorptive capacity were obtained for Ti C, Ti S, and Ti P, respectively, at 100 mg L−1 of Pb(II) ions in soil solutions during 120 min. The adsorption isotherm and the thermodynamic parameters were further illustrated. These findings recommended these nano-adsorbent TiO2 as adequate adsorbents in remediation process of Pb-enriched soil.
KeywordsMesoporous TiO2 Adsorption capacity Soil remediation Lead(II) Surfactant template
The authors wish to thank all who assisted in conducting this work.
- Adetutu EM, Bird C, Kadali KK, Bueti A, Shahsavari E, Taha M, Patil S, Sheppard PJ, Makadia T, Simons KL, Ball AS (2015) Exploiting the intrinsic hydrocarbon-degrading microbial capacities in oil tank bottom sludge and waste soil for sludge bioremediation. Int J Environ Sci Technol 12:1427–1436CrossRefGoogle Scholar
- Ali I, Gupta VK, Khan TA, Asim M (2012) Removal of arsenate from aqueous solution by electro-coagulation method using Al–Fe electrodes. Int J Electrochem Sci 7:1898–1907Google Scholar
- Ali I, Alothman ZA, Alwarthan A (2017b) Uptake of propranolol on ionic liquid iron nanocomposite adsorbent: kinetic, thermodynamics and mechanism of adsorption. J Mol Liq 236:203–205Google Scholar
- Gupta VK, Ali I (2012) Environmental water: advances in treatment, remediation and recycling. Elsevier, AmsterdamGoogle Scholar
- Ho and McKay (2009) The kinetics of sorption of basic dyes from aqueous solution by sphagnum moss peat. The Can J Chem Eng 76:822–827Google Scholar
- Khan TA, Sharma S (2011) Adsorption of Rhodamine B dye from aqueous solution onto acid activated mango (Magnifera indica) leaf powder: equilibrium, kinetic and thermodynamic studies. J Toxicol Environ Health Sci 3(10):286–297Google Scholar
- Shirani M, Akbaria A, Hassani M (2015) Adsorption of cadmium(II) and copper(II) from soil and water samples onto a magnetic organozeolite modified with 2-(3,4-dihydroxyphenyl)-1,3- dithiane using an artificial neural network and analyzed by flame atomic absorption spectrometry. Anal Methods 7:6012–6020CrossRefGoogle Scholar
- Sutradhar N, Pahari SK, Jayachandran M, Stephan AM, Nair JR, Subramanian B, Bajaj HC, Modya HM, Panda AB (2013) Organic free low temperature direct synthesis of hierarchical protonated layered titanates/anatase TiO2 hollow spheres and their task-specific applications. J Mater Chem A 1:9122–9131CrossRefGoogle Scholar