1. Humelnicu, D., M. Ignat, M.V. Dinu and E.S. Dragan, 2022. Optimization of arsenic removal from aqueous solutions using amidoxime resin hosted by mesoporous silica. ACS Omega, 7: 31069-31080.
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2. Humelnicu, D., I. Zinicovscaia, I. Humelnicu, M. Ignat, N. Yushin and D. Grozdov, 2022. Study on the SBA-15 silica and ETS-10 titanosilicate as efficient adsorbents for Cu(II) removal from aqueous solution. Water, Vol. 14. 10.3390/w14060857.
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3. Dinu, M.V., I. Humelnicu, C.A. Ghiorghita and D. Humelnicu, 2022. Aminopolycarboxylic acids-functionalized chitosan-based composite cryogels as valuable heavy metal ions sorbents: Fixed-bed column studies and theoretical analysis. Gels, Vol. 8. 10.3390/gels8040221.
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4. Zinicovscaia, I., N. Yushin, D. Humelnicu, D. Grozdov, M. Ignat, S. Demcak and I. Humelnicu, 2021. Sorption of Ce(III) by silica SBA-15 and titanosilicate ETS-10 from aqueous solution. Water, Vol. 13. 10.3390/w13223263.
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5. Mita, C., I. Bunea, T. Roman and D. Humelnicu, 2021. Cross-linked and functionalized acrylic polymers: Efficient and reusable sorbents for Zn(II) ions in solution. J. Polym. Environ., 29: 2261-2281.
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6. Humelnicu, D., I. Zinicovscaia, I. Humelnicu and M. Ignat, 2021. Experimental studies on the removal of aluminium ions from synthetic aqueous solution by hydroxyapatites. Acta Chim. Slov., 68: 821-832.
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7. Humelnicu, D. and E.S. Dragan, 2021. Evaluation of phosphate adsorption by porous strong base anion exchangers having hydroxyethyl substituents: Kinetics, equilibrium, and thermodynamics. Environ. Sci. Pollut. Res., 28: 7105-7115.
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8. Dragan, E.S., D. Humelnicu and M.V. Dinu, 2021. Designing smart triple-network cationic cryogels with outstanding efficiency and selectivity for deep cleaning of phosphate. Chem. Eng. J., Vol. 426. 10.1016/j.cej.2021.131411.
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9. Dinu, M.V., D. Humelnicu and M.M. Lazar, 2021. Analysis of copper(II), cobalt(II) and iron(III) sorption in binary and ternary systems by chitosan-based composite sponges obtained by ice-segregation approach. Gels, Vol. 7. 10.3390/gels7030103.
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10. Zinicovscaia, I., N. Yushin, D. Grozdov, I. Humelnicu, D. Humelnicu and T. Mitina, 2020. Removal of chromium (III) ions from aqueous solutions using different types of hydroxyapatites. Desalin. Water Treat., 204: 297-305.
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11. Shammas, M., I. Zinicovscaia, D. Humelnicu, L. Cepoi, V. Nirwan, Š. DemčÌk and A. Fahmi, 2020. Bioinspired elelctrospun hybrid nanofibers based on biomass templated within polymeric matrix for metal removal from wastewater. Polym. Bull., 77: 3207-3222.
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12. Humelnicu, D., M.M. Lazar, M. Ignat, I.A. Dinu, E.S. Dragan and M.V. Dinu, 2020. Removal of heavy metal ions from multi-component aqueous solutions by eco-friendly and low-cost composite sorbents with anisotropic pores. J. Hazard. Mater., Vol. 381. 10.1016/j.jhazmat.2019.120980.
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13. Humelnicu, D., E.S. Dragan, M. Ignat and M.V. Dinu, 2020. A comparative Study on Cu²⁺, Zn²⁺, Ni²⁺, Fe³⁺, and Cr³⁺ metal ions removal from industrial wastewaters by chitosan-based composite cryogels. Molecules, Vol. 25. 10.3390/molecules25112664.
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14. Humelnicu, D., A. Pui, C. Malutan, T. Malutan and I. Humelnicu, 2020. Synthesis, characterization and theoretical investigations of new uranium (VI) and thorium (IV) complexes with 1-furfurylaldehyde-derived Schiff bases as ligands. J. Saudi Chem. Soc., 24: 451-460.
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15. Dragan, E.S., D. Humelnicu, M. Ignat and C.D. Varganici, 2020. Superadsorbents for strontium and cesium removal enriched in amidoxime by a homo-IPN strategy connected with porous silica texture. ACS Appl. Mater. Interfaces, 12: 44622-44638.
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16. Dragan, E.S. and D. Humelnicu, 2020. Contribution of cross-linker and silica morphology on Cr(VI) sorption performances of organic anion exchangers embedded into silica pores. Molecules, Vol. 25. 10.3390/molecules25051249.
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17. Humelnicu, D., L.Soroaga, C. Arsene, I. Humelnicu and R.I. Olariu, 2019. Adsorptive performance of soy bran and mustard husk towards arsenic (V) ions from synthetic aqueous solutions. Acta Chim. Slov., 66: 326-336.
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18. Dragan, E.S., D. Humelnicu and M.V. Dinu, 2019. Development of chitosan-poly(ethyleneimine) based double network cryogels and their application as superadsorbents for phosphate. Carbohydr. Polym., 210: 17-25.
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19. Dragan, E.S., D. Humelnicu and M.V. Dinu, 2018. Design of porous strong base anion exchangers bearing N,N-dialkyl 2-hydroxyethyl ammonium groups with enhanced retention of Cr(VI) ions from aqueous solution. React. Funct. Polym., 124: 55-63.
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20. Dragan, E.S., D. Humelnicu, M.V. Dinu and R.I. Olariu, 2017. Kinetics, equilibrium modeling and thermodynamics on removal of Cr (VI) ions from aqueous solution using novel composites with strong base anion exchanger microspheres embedded into chitosan/poly (vinyl amine) cryogels. Chem. Eng. J., 330: 675-691.
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21. Blegescu, C., D. Ganju, S. Shova and H. Doina, 2017. Immobilised Co(II) homodinuclear coordinative compound with terephthalate bridge and o-phenanthroline for catalytic applications. Croat. Chem. Acta, 90: 59-66.
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22. Dumitrascu, D., D. Popovici, E. Vrinceanu, N. Humelnicu, D. Ouerfelli, et al ., 2016. Photocatalytic performance of systems based on uranyl incorporated SBA-15 mesoporous silica. Digest J. Nanomater. Biostructures, 11: 381-392.
23. Humelnicu, D., M. Ignat and M. Suchea. 2015. Evaluation of adsorption capacity of montmorillonite-K10 and Al-pillared clay towards Pb²⁺, Cu²⁺ and Zn²⁺ ions. Acta Chim. Slov., 62: 947-957.
24. Humelnicu, D., M. Ignat and F. Doroftei, 2015. Agricultural by-products as low-cost sorbents for the removal of heavy metals from dilute wastewaters. Environ. Monit. Assess., 187: 1-11.
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25. Humelnicu, D., 2015. Inorganic Chemistry of Non-Metalic and Semimetalic Elements. Tehnopress Publishing House, Iaşi, Romania.
26. Popescu, I.C., F. Petru, I. Humelnicu, M. Mateescu, E. Militaru and D. Humelnicu, 2014. Removal of uranyl ions by p-hexasulfonated calyx [6] arene acid. J. Nuclear Mater., 453: 75-81.
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27. Humelnicu, D., C. Blegescu and D. Ganju, 2014. Removal of uranium (VI) and thorium (IV) ions from aqueous solutions by functionalized silica: kinetic and thermodynamic studies. J. Radioanal. Nucl. Chem., 299: 1183-1190.
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28. Popescu, I.C., P. Filip, D. Humelnicu, I. Humelnicu, T.B. Scott and R.A. Crane, 2013. Removal of uranium (VI) from aqueous systems by nanoscale zero-valent iron particles suspended in carboxy-methyl cellulose. J. Nuclear Mater., 443: 250-255.
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29. Humelnicu, D. and A. Cecal, 2013. Introduction in Nuclear Chemistry. Tehnopress Publishing House, Iasi, Romania.
30. Cecal, A. and D. Humelnicu, 2013. Microelements Recovery from Uranium Sludge by Precipitation as Hydroxides. Rev. Chim., 64: 1131-1134.
31. Hritcu, D., D. Humelnicu, G. Dodi and M.I. Popa, 2012. Magnetic chitosan composite particles: evaluation of thorium and uranyl ion adsorption from aqueous solutions. Carbohydr. Polym., 87: 1185-1191.
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32. Cecal, A., D. Humelnicu, V. Rudic, L. Cepoi, D. Ganju and A. Cojocari, 2012. Uptake of uranyl ions from uranium ores and sludges by means of Spirulina platensis, Porphyridium cruentum and Nostok linckia alga. Bioresour. Technol., 118: 19-23.
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33. Cecal, A., D. Humelnicu, V. Rudic, L. Cepoi and A. Cojocari, 2012. Removal of uranyl ions from UO2 (NO3) 2 solution by means of Chlorella vulgaris and Dunaliella salina algae. Open Chem., 10: 1669-1675.
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34. Pui, A., T. Malutan, L. Tataru, C. Malutan, D. Humelnicu and G. Carja, 2011. New complexes of lanthanide Ln (III),(Ln= La, Sm, Gd, Er) with Schiff bases derived from 2-furaldehyde and phenylenediamines.New complexes of lanthanide Ln (III),(Ln= La, Sm, Gd, Er) with Schiff bases derived from 2-furaldehyde and phenylenediamines. Polyhedron, 30: 2127-2131.
35. Olariu, R.I., C. Arsene, D. Humelnicu, V. Vasilache, 2011. Solid-pahse extraction and spectrophotometric determination of ultratrace thorium (IV) in water samples. Int. J. Criminal Invest., 1: 25-30.
36. Humelnicu, D., M.V. Dinu and E.S. Dragan, 2011. Adsorption characteristics of UO 2 2+ and Th 4+ ions from simulated radioactive solutions onto chitosan/clinoptilolite sorbents. J. Hazard. Mater., 185: 447-455.
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37. Cecal, A. and D. Humelnicu, 2011. Hydrogen Output from Catalyzed Radiolysis of Water. In: Nuclear Power: Deployment, Operation and Sustainability, Tsvetkov, P. (Ed.). Chapter 20, InTech Publ., Rijeka, Croatia, ISBN: 978-953-307-474-0, pp: 489-510.
38. Cecal, A. and D. Humelnicu, 2011. Hydrogen Output from Catalyzed Radiolysis of Water In: Nuclear Power - Deployment, Operation and Sustainability Dr. Pavel Tsvetkov, Texas A&M Univ., USA., pp: 481-509.
39. Humelnicu, D., L. Bulgariu and M. Macoveanu, 2010. On the retention of uranyl and thorium ions from radioactive solution on peat moss. J. Hazard. Mater., 174: 782-787.
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40. Humelnicu, D., C. Arsene, B. Burghele, M. Bertescu, I. Humelnicu et al., 2010. Interaction of Actinide Cations with Heteropolyoxotungstate Ions [SiW₁₁O₃₉]^8- and [SiW₁₂O₄₀]⁴. Rev. Chim. Bucharest, 61: 841-844.
41. Al. Cecal, D. Humelnicu, K. Popa 2010. The effect of α radiolysis on the U(IV)/U(VI) ratio in uranium-bearing ores. Rev. Roum. Chim., 55: 979-982.
42. Olariu, R.I., D. Humelnicu, I. Sandu, I. Humelnicu, C. Arsene, 2009. Physico-chemical characterization of a new silica-polyoxometalate thermally modified unit. Rev. Chim. Bucharest., 60: 1216-1219.
43. Humelnicu, D., R.I. Olariu, I. Sandu, I. Humelnicu and A.V. Sandu, 2009. Studies on chemical interferences on uranium (VI) and thorium (VI) reaction with (iso)polioxometalates. Rev. Chim. Bucharest, 60: 1264-1269.
44. Humelnicu, D., E. Popovici, E. Dvininov and C. Mita, 2009. Study on the retention of uranyl ions on modified clays with titanium oxide. J. Radioanal. Nucl. Chem., 279: 131-136.
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45. Pui, A., D. Humelnicu, I. Humelnicu and C. Tanase, 2008. Synthesis of some complexes of dioxouranium(VI) with DI-halogeno-tetra- methyl salen ligands.sistemului UO2 - acid 4-amino-naftalen 1,5–disulfonic in solutie Rev. Roum. Chim., 53: 177-182.
46. Popa, K., R. Tykva, E. Podracka and D. Humelnicu, 2008. 226Ra translocation from soil to selected vegetation in the Crucea (Romania) uranium mining area. J. Radioanal. Nucl. Chem., 278: 211-213.
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47. Olariu, R.I., D. Humelnicu, C. Arsene, I. Sandu and G. Carja, 2008. Synthesis and chemical characterization of new derivative complexes from UO₂²⁺ and Th⁴⁺ ions with the (iso)polioxomolybdate and (iso)polioxotungstate clusters. Rev. Chim. Bucharest., 59: 1052-1056.
48. Malutan, T., A. Pui, C. Malutan, L. Tataru and D. Humelnicu, 2008. A Fluorescence Emission, FT-IR and UV-VIS Absorption Study of the Some Uranium (VI) Schiff Bases Complexes. J. Fluoresc., 18: 707-713.
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49. Humelnicu, D., R.I. Olariu, I. Sandu, A.V. Sandu and N. Apostolescu et al., 2008. New heteropolyoxotungstates and heteropolyoxomolybdates containing radioactive ions (uranyl and thorium) in their structure Rev. Chim. Bucharest, 59: 920-925.
50. Humelnicu, D., R.I. Olariu and Al. Cecal, 2008. Recovery of some inorganic compounds from the sludges resulted after the leaching of uranyl ions from uranium ores. Environ. Eng. Manage. J., 7: 401-407.
51. Humelnicu, D., 2008. Removal of Thorium ions from simulated wastewaters onto Callovo Oxfordian clay. Ann. St. Univ. Al.I. Cuza Iasi., 16: 77-84.
52. Drochioiu, G., K. Popa, D. Humelnicu, M. Murariu, I. Sandu and A. Cecal, 2008. Comparison of various sensitive and selective spectrophotometric assays of environmental cyanide. Toxicol. Environ. Chem., 90: 221-235.
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53. Cecal, A., M. Raileanu, K. Popa, D. Humelnicu and F. Ionica, 2008. Separation of U(VI) and U(IV) Chemical Specie son the DGA, TEVA and UTEVA Eichrom Resins. In: Uranium, Mining and Hydrogeology, Merkel, B.J. and A. Hasche-Berger (Eds.). Springer, New York, USA., pp: 665-673.
54. Cecal, A., M. Raileanu, D. Humelnicu, K. Popa and F. Ionica, 2008. Selective Retention of U(VI) and U(IV) Chemical Species on Eichrom Resins: DGA, TEVA and UTEVA. In: Uranium, Mining and Hydrogeology, Merkel, B.J. and A. Hasche-Berger (Eds.). Springer, Berlin, Germany, ISBN: 978-3-540-87745-5, pp: 665-673.
55. Cecal, A., M. Raileanu, D. Humelnicu, K. Popa and F. Ionica, 2008. Selective Retention of U (VI) and U (IV) Chemical Species on Eichrom Resins: DGA, TEVA and UTEVA. In: Uranium, Mining and Hydrogeology B.J. and A. Hasche-Berger, Springer Berlin Heidelberg., pp:665-672.
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56. Popovici, E., D. Humelnicu and C. Hristodor, 2006. Removal of UO22+ ions from simulated wastewater onto Romanian aluminium pillared clays. Rev. Chim., 57: 675-678.
57. Popa, K., M.N. Palamaru, A.R. Iordan, D. Humelnicu, G. Drochioiu and A. Cecal, 2006. Laboratory analyses of ⁶⁰Co²⁺, ⁶⁵Zn²⁺ and ⁵⁵⁺⁵⁹Fe³⁺ radiocations uptake by Lemna minor. Isotopes Environm. Health Stud., 42: 87-95.
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58. Popa, K., D. Humelnicu, M. Raileanu, R. Calmoi and A.l. Cecal, 2006. On the depollution of some radioactive effluents. Stud. Univ. Babes Bolyai Chemia, 2: 119-123.
59. Humelnicu, D., K. Popa and A. Cecal, 2006. Sorption of U(VI) on a callovo-oxfordian clay. Ann. St. Univ. Al.I. Cuza Iasi., .
60. Humelnicu, D., I. Humelnicu and D.G. Cozma, 2006. Study of the UO₂²⁺–acid-2-amino-1-naphtalen sulphonic (ANS) system in solution. Rev. Roum. Chim., 51: 109-115.
61. Humelnicu, D., G. M.I. DrochioiuSturza, A. Cecal and K. Popa, 2006. Kinetic and thermodynamic aspects of U (VI) and Th (IV) sorption on a zeolitic volcanic tuff. J. of Radioanal. And Nucl. Chem., 270: 637-640.
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62. Bontea, D., C. Mita and D. Humelnicu, 2006. Removal of uranyl ions from wastewaters using cellulose and modified cellulose materials. J. Radioanalytical Nuclear Chem., 268: 305-311.
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63. Popa, K., D. Humelnicu and A.l. Cecal, 2005. Environmental Radioactivity. MatrixROM Publishing House, Bucharest, Romania.
64. Popa, K., A. Cecal, D. Humelnicu, I. Caraus and C. Draghici, 2004. Removal of ⁶⁰Co²⁺ and ¹³⁷Cs⁺ ions from low radioactive solutions using Azolla caroliniana willd. water fern. Open Chem., 2: 434-445.
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65. Humelnicu, D., G. Drochioiu and K. Popa, 2004. Bioaccumulation of thorium and uranyl ions on Saccharomyces cerevisiae. J. Radioanal. Nucl. Chem., 260: 291-293.
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66. Ganju, D., D. Bontea, D. Humelnicu and G. Singurelu, 2004. Coordinating compounds immobilized on cellulose supports. Mater. Plast., .
67. Popa, K., A. Cecal, G. Drochioiu, A., Pui and D. Humelnicu, 2003. Saccharomyces cerevisiae as uranium bioaccumulating material: the influence of contact time, pH and anion nature. Nukleonika-Original Ed., 48: 121-126.
68. Al. Cecal, D. Humelnicu, K. Popa, V. Rudic and A. Gulea, et al., 2000. Bioleaching of UO₂²⁺ ions from poor uranium ores by means of cyanobacteria. J. Radioanal. Nucl. Chem., 245: 427-429.