Investigation of the Acquisition Conditions of Tl3AsS4 Compound in the Aquatic Environment

Abstract

The condition for obtaining the Tl3AsS4 compound was investigated based on TlNO3 and As2S5 compounds in hydrothermal conditions in the aquatic environment. It was found that Tl3AsS4 compound has been obtained from a mixture of the primary components (As2S5 and TlNO3) in a ratio of 4:15 mol at 80 °C in the range of pH = 7 – 8. The individuality of the obtained Tl3AsS4 compound was confirmed by the XRD method and DTA, and TG analyses. The thermally processed Tl3AsS4 compound crystallizes in an orthorhombic structure at 220 °C. Based on the results of TG analysis, the temperatures of the phase transitions that occur during the oxidation of the compound were determined and the stoichiometric composition of the compound was specified. The SEM results of the compound showed that the Tl3AsS4 precipitate obtained from the solution at 80 °C is composed of aggregates of highly adherent nanoparticles and the size of the nanoparticles varies from ~60 to 120 nm. The effect of pH of the medium and the amount of the primary components on the yield of Tl3AsS4 was studied. It was determined that when T > 100 °C, (Tl2S)x(As2S3)1-x (x=0.1-0.9) – containing sediments are obtained from different molar ratios of the primary components (As2S5 and TlNO3).

Keywords

• functional materials
• sediments
• chemical analysis
• thermogravimetric analysis
• micromorphology

Thanks

The authors are very thankful to the Institute of Natural Resources of Nakhchivan Branch of Azerbaijan National Academy of Sciences for supporting this study.

References

1. 1. Babanly M.B., Ilʹjasly T.M., Muradova G.V., Babanly D.M. Tverdofaznye ravnovesija v sisteme Tl2-As2S3-S i termodinamičeskie svojstva trojnyh soedinenij. Vestnik Bakinskogo Universiteta. 2011;№4:c 203-5.
2. 2. Canneri G., Fernandes L. Contributo allo studio di alcun minerali contenenti tallio. Analisi termica dei systemi Tl2S-As2S3, Tl2S-PbS. Atti accad. naz. Lincei. 1925;ser 6:vol.32:II:p 671-6.
3. 3. Flashchen S.S., Pearson A.D., Northover W.R. Low-melting inorganic glasses with high melt fluidities below 400 °C. J. Amer Ceram. Soc. 1959;vol.42:N9:p 450-450.
4. 4. Flashchen S.S., Pearson A.D., Northover W.R. Formation and properties of low-melting glasses in the ternary systems As – Tl – S, As – Tl – Se and As – Se – S. J.Amer Ceram. Soc. 1960;vol.43:p 274-5.
5. 5. Gorjunova N.A., Kolomiec B.T., Šilo V.P. Stekloobraznye poluprovodniki. Žurn. tehn. Fiziki. 1958;t. 28:№5:s 981-5.
6. 6. Gorjunova N.A., Kolomiec B.T., Šilo V.P. Stekloobraznye poluprovodniki. 9. Stekloobraznie v složnyh halʹkogenidah na osnove sulfida i selenida myšʹjaka. FTT 1960;t.2:№2:s 280-3.
7. 7. Gusejnov G.M. Issledovanie uslovija polučenija tetratioarsenita medi(I) gidrohimičeskim metodom. VI Meždunarodnyj Naučnye Konfrans Novye funkcionalʹnoe materialy i vysokie tehnologii. Tivat, Černogorija. 2018;s 194-5.
8. 8. Gusejnov G.M. Sulejmanova T.I. Polučenie soedinenij AgAsS2 i Ag3AsS3 gidrotermalʹnym metodom. Meždunarodnyj žurnal prikladnyh i fundamen-talnyh issledovanija. Moskva, Akademija estestvoznanija. 2017;№3(2):s 341-167.

9. 9. Hawley L.F. Contributions to the chemistry of thallium. J. Amer Chem. Soc. 1907;vol.29:p 300-4.
10. 10. Huseynov G.M. Methods of obtaining nanomaterials. Nakhchivan, Ajami Publishing and Printing Association. 2017;256 p.
11. 11. Imanov H.A. Investigation of conditions for obtaining arsenic(V) sulfide in an aquatic environment. Nakhchivan Branch of ANAS, Scientific works. 2018;№2:p 312-3.
12. 12. Kolomiec B.T., Gorjunova N.A., Šilo V.P. Stekloobraznov sostojanie v halʹkogenidah. – V kn.: Stekloobraznoe sostojanie. M.: L Izd-vo AN SSSR. 1960;s 456-60.
13. 13. Kirilenko V.V., Demboeskij S.A., Poljakov Ju.A. Optičeskie svojstva stekol v sistemah As2S3 – Tl2S i As2Se3 – Tl2Se. Izv. AN SSR. Neorgan. Materialy. 1975;t. 11:№11:s 1923-8.
14. 14. Kirilenko V.V., Nikitina V.K., Demboeskij S.A. Stekloobrazovanie i osobennosti himičeskogo vzaimodejstvija v halʹkogenidnyh sistemah As2X3 – Tl2X. Izv. AN SSR. Neorgan. Materialy. 1975;t. 11:№11:s 1929-35.
15. 15. Lazareva V.B., Kiš Z.Z. Pereš E.Ju., Semrad E.E. Složnye halʹkogenidy v sistemah АIВIIIСVI. Izdatelʺstvo Metallurgija. 1993;s 230.
16. 16. Markova T.P. Èlektroprovodnostʹ stekloobraznoj sistemy myšʹjak – sera – tallij. Vestn. LGU. Fizika i himija. 1962;№22:vyp. 4:s 96-104. 17. Muradova G.V., T.M.Ilʹjasly, Ju.A.Jusibov, M.B.Babanly. Fazovye ravnovesija v sistemah TlS–TlAsS2 i Tl3AsS3–S. Azerbajdžanskij Himičeskij Žurnal. 2012;№3:s 109-3.
17. 18. Nemodruk A.A. Analitičeskaja himija myšʹjaka. Izdatelstvo Nauka Moskva. 1976;s 244.
18. 19. Prerichs R. New optical glasses with good transparency in the infrared. J.Opt. Soc. Amer. 1953;vol.43: issue 5;p.339-431.
19. 20. Šarlo.G. Metody analitičeskoj himii. Kličestvennyj analiz neorganičeskih soedinenij. Moskva Izdatelʺstvo Himija. 1965;976 s.
20. 21. Solovʹev P.P. Spravočnik po mineralogi. M.; L.: GNTI po černoj i cvetnoj metallurgii 1948;s 517.
21. 22. Vinogradova G.Z. Stekloobrazovanie i fazovye ravnovesija v halʹkogenidnyh sistemah. Izdatelʹstvo Nauka Moskva. 1984;s 172.