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dc.contributor.authorNurliyana, Ariffin
dc.contributor.authorMohd Mustafa Al Bakri, Abdullah
dc.contributor.authorPostawa, Przemysław
dc.contributor.authorShayfull Zamree, Abd Rahim
dc.contributor.authorMohd Remy Rozainy, Mohd Arif Zainol
dc.contributor.authorRamadhansyah, Putra Jaya
dc.contributor.authorSliwa, Agata
dc.contributor.authorMohd Firdaus, Omar
dc.contributorCenter of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP)en_US
dc.contributorFaculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP)en_US
dc.contributorFaculty of Production Engineering and Materials Technology, Częstochowa University of Technologyen_US
dc.contributorFaculty of Mechanical Engineering Technology, Universiti Malaysia Perlis (UniMAP)en_US
dc.contributorSchool of Civil Engineering, Engineering Campus, Universiti Sains Malaysia (USM)en_US
dc.contributorDepartment of Civil Engineering, College of Engineering, Universiti Malaysia Pahang (UMP)en_US
dc.contributorDivision of Materials Processing Technology and Computer Techniques in Materials Science, Silesian University of Technologyen_US
dc.creatorMohd Mustafa Al Bakri, Abdullah
dc.creatorPostawa, Przemysław
dc.date2022
dc.date.accessioned2022-03-23T01:29:45Z
dc.date.available2022-03-23T01:29:45Z
dc.date.issued2021-02
dc.identifier.citationMaterials, vol.14(4), 2021, 18 pagesen_US
dc.identifier.issn1996-1944
dc.identifier.urihttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/74755
dc.descriptionLink to publisher's homepage at https://www.mdpi.com/en_US
dc.description.abstractThis current work focuses on the synthesis of geopolymer-based adsorbent which uses kaolin as a source material, mixed with alkali solution consisting of 10 M NaOH and Na₂SiO₃ as well as aluminium powder as a foaming agent. The experimental range for the aluminium powder was between 0.6, 0.8, 1.0 and 1.2wt%. The structure, properties and characterization of the geopolymer were examined using X-Ray Diffraction (XRD), Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Adsorption capacity and porosity were analysed based on various percentages of aluminium powder added. The results indicate that the use of aluminium powder exhibited a better pore size distribution and higher porosity, suggesting a better heavy metal removal. The maximum adsorption capacity of Cu²⁺ approached approximately 98%. The findings indicate that 0.8% aluminium powder was the optimal aluminium powder content for geopolymer adsorbent. The removal efficiency was affected by pH, adsorbent dosage and contact time. The optimum removal capacity of Cu²⁺ was obtained at pH 6 with 1.5 g geopolymer adsorbent and 4 h contact time. Therefore, it can be concluded that the increase in porosity increases the adsorption of Cu²⁺.en_US
dc.language.isoenen_US
dc.publisherMDPI AGen_US
dc.subject.otherGeopolymeren_US
dc.subject.otherAdsorbenten_US
dc.subject.otherCopperen_US
dc.subject.otherFoaming agenten_US
dc.titleEffect of aluminium powder on kaolin-based geopolymer characteristic and removal of Cu²⁺en_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.3390/ma14040814
dc.contributor.urlmustafa_albakri@unimap.edu.myen_US
dc.contributor.urlpostawa@ipp.pcz.plen_US


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