Phosphate adsorption characteristics of ‘nanoclay’ separated from Indonesian volcanic tuffs
From an Indonesian volcanic tuff taken from parent material layer of an Andisols profile, it was separated ‘nanoclay’ fraction of <200 nm particle size. The separated ‘nanoclay’ exhibits pH-dependent charge characteristic due to the presence of allophane in the tuff. Therefore, it can be utilized as a natural anionic adsorbent since its separation process was conditioned to proceed at pH <4.0. This study aims to compare phosphate adsorption characteristics of positively charged ‘nanoclay’ based on Langmuir, Freundlich, Brunauer-Emmett-Teller (BET), and Dubinin-Radushkevich (D‒R) isothermal models. The ‘nanoclay’ was separated using US Patent No. US2010/0187474 A1 procedure that was modified in this study with addition of HCl treatment. The results showed that after 48 h equilibration, application of Langmuir and D‒R model resulted adsorption capacity (qe para-meter) of 460.78 (two-sites) and 439.66 mg.g-1 (heterogeneous sites), respectively, while BET and Freundlich model resulted respectively adsorption at the first adsorptive layer (qmono parameter) of 111.11 mg.g-1 (multilayers) and adsorption constant (1/n parameter) of 0.28. The later indicated that the studied ‘nanoclay’ was a high-quality adsorbent (1/n value 0.1-0.5). Limitations and advantages application of each model were discussed. However, Langmuir showed the best performance in term of linear equations with the highest R2 values obtained.
orbital study. J. Computer-Aided Matter Design. 14:5-18. DOI: 10.1007/s10820-006-9022-0
Al-Ghouti MA, Da’ana DA. 2020. Guidelines for the use and interpretation of adsorption isotherm models: A review. J
Hazardous Materials. 393:1-22. DOI: 10.1016/j.jhazmat.2020.122383
Asniar N, Purwana YM, Surjandari NS. 2019. Tuff as rock and soil: Review of the literature on tuff geo-technical, chemical,
and mineralogical properties around the world and in Indonesia. AIP Conference Proceedings 2114, 050022. DOI:
Azouaou N, Sadaoui Z, Djaafri A, Mokaddem H. 2010. Adsorption of cadmium from aqueous solution onto untreated
coffee grounds: Equilibrium, kinetics, and thermodynamics. J Hazardous Materials. 184:126–134. DOI:
Brunauer S, Emmett PH, Teller E. 1938. Adsorption of gases in multimolecular layers. J American Chemistry Society,
60(2):309–319. DOI: 10.1021/ja01269a023
Calabi-Floody M, Theng BKG, Preyes P, Mora ML. 2009. Natural nanoclays: Applications and future trends – a Chilean
perspective. Clay Minerals. 44:161-176. DOI: 10.1180/claymin.2009.044.2.161
Calabi-Floody M, Bendall JS, Jara AA, Welland ME, Theng BKG, Rumpel C, Mora ML. 2011. Nanoclays from an Andisol:
Extraction, properties, and carbon stabilization. Geoderma. 161(3-4):159–167. DOI: 10.1016/j.geoderma.2010.12.013
Handayani M, Sulistiyono E. 2009. Assessment of Langmuir and Freundlich equations on adsorption of Chrom (VI) by
zeolite [In Indonesian]. Proceeding of the National Seminar on Nuclear Science and Technology 2009, Bandung,
Indonesia, June 3, 2009. pp. 130-136.
Henmi T, Wada K. 1976. Morphology and composition of allophane. American Mineralogist. 61:379-390.
Holister P, Weener JW, Roma´n C, Harper T. 2003. Nanoparticles. Cientifica Technology White Paper, 3:1-11.
Hu Q, Zhang Z. 2019. Application of Dubinin–Radushkevich isotherm model at the solid/solution interface: A theoretical
analysis. J Molecular Liquids, 277:646-648. DOI: 10.1016/j.molliq.2019.01.005
Islam MA, Chowdhury MA, Mozumder MSI, Uddin MT. 2019. Langmuir dsorption kinetics in liquid media: Interface
reaction model. ACS Omega. 6:14481−14492. DOI: 10.1021/acsomega.1c01449
Lo CK. 2010. Pure Nanoclay and Process for Preparing Nanoclay. Patent United States. Publ. No. US 20100187474 A1.
Min-Suk K, Jeong-Gyu K. 2020. Adsorption characteristics of spent coffee grounds as an alternative adsorbent for
Cadmium in solution. Environments. 7(24):1-12. DOI: 10.3390/environments7040024
Parfitt RL, Henmi T. 1980. Structure of some allophanes from New Zealand. Clays and Clay Minerals. 28(4): 285-294. DOI:
Sudadi U, Wijaya H. 2012. Water-phosphorus sorption on nano-fraction extracted from volcanic tuff of Mt. Salak, West
Java, Indonesia. Regional Workshop Water, Land, and Southeast Asia Food Sovereignty. Bogor, Indonesia, 18-19 Sep
2012. IPB in cooperation with Federal Ministry for Economic Cooperation & Development, DAAD, and Exceed,
Sudadi U, Anggriawan R, Anwar S. 2019a. Appication of nanoclays from volcanic tuff of Salak Mountain, Indonesia as
natural adsorbent for anionic contaminant: Phosphate in water environment [In Indone-sian]. J Natural Resources and
Environmental Management, 9(4):1032-1040. DOI: 10.29244/jpsl.9.4. 1032-1040
Sudadi U, Anwar S, Anggriawan R, Afrizal T. 2019b. Indonesian nanoclays for the removal of nitrate in liquid waste
containing palm oil mill effluent. J Agroteknologi, 13(2):164-170.
Sukarman, Dariah A. 2014. Andosol soils in Indonesia: Characteristics, Potencies, Limitations, and Management for
Agriculture. [In Indonesian]. Bogor (ID): Agency for Research and Development of Agriculture Land Resources,
Ministry of Agriculture, Government of Indonesia.
Tan KH. 1998. Principles of Soil Chemistry: Third Edition, Revised and Expanded. New York [US]: Marcel Dekker Inc.
Theng BKG, Yuan G. 2008. Nanoparticles in the soil environment. Elements. 4:395-399. DOI: 10.2113/gselements.4.6.395
Van der Bruggen B. 2014. Freundlich Isotherm. Leuven (BE): Department of Chemical Engineering, Process Engineering
for Sustainable Systems (ProcESS), Katholieke Universiteit Leuven, Leuven, Belgium.
van Ranst E, Utami SR, Shamshuddin J. 2002. Andisols on volcanic ash from Java Island, Indonesia: Physico-chemical
properties and classification. Soil Science, 167(1):68-79. DOI:10.1097/00010694-20020-1000-00007
van Ranst E, Utami SR, Vanderdeelen J, Shamshuddin J. 2004. Surface reactivity of Andisols on volcanic ash along the
Sunda arc crossing Java Island, Indonesia. Geoderma. 123(3-4):193-203. DOI: 10.1016/ j.geoderma.2004.02.005
Yuan G, Wu L. 2007. Allophane nanoclay for the removal of phosphorus in water and wastewater. Science and Technology
of Advanced Materials. 8(1):60-62. DOI: 10.1016/j.stam.2006.09.002.
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