Aluminium silicate (clinoptilite, perlite and bentonite) modified with silver as catalyst and antibacterial agent

Alexandre Loukanov, Krassimir Genov, Svetlana Bratkova, Anatoliy Angelov, Dipak Sarker

Research output: Contribution to journalArticle


Selections of freely available Bulgarian aluminium silicates were investigated for theirab initio catalytic and bactericidal potential for large-scale industrial and biotechnological application. Combination analyses of X-ray diffraction, atomic emission spectroscopy, IR and UV-VIS molecular spectrophotometry were used to dissect the properties of these solid-state “glassy” materials. A correlation is made between structural positioning, spacing and silver metal coverage of the particular silicate support (and its catalytic potential) in respect of the form of silver present. The bactericidal effect is demonstrated on sulphatereducing bacteria, which occurs widely in sediment and contaminated water with decay organic material. All data indicate an assuredness of the tested materials as a “platform technology” for adaptation and future industrial scale-up.
Original languageEnglish
Pages (from-to)345-355
Number of pages11
JournalAnnals of Constantin Brancusi
Publication statusPublished - 1 Jan 2012


  • Aluminium silicates
  • zeolite
  • HEU
  • Ag
  • Ion-exchange

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  • Activities

    • 1 Research degree
    • 1 Invited talk

    Masters Degree by Research (France) - Mr Victor Jasny (University of Tours at Blois)

    Dipak Sarker (Supervisor)

    1 Mar 20201 Aug 2020

    Activity: External examination and supervisionResearch degree

    Nanosystems for in-vivo self-assembling medical devices.

    Dipak Sarker (Presenter)

    14 Nov 201415 Nov 2014

    Activity: External talk or presentationInvited talk

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