48. W.W. Lestari, L. Yunita, T.E. Saraswati, E. Heraldy, M.A. Khafidhin, Y.K. Krisnandi, U.S.F. Arrozi,  G.T.M. Kadja. “Fabrication of composite materials MIL-100(Fe)/Indonesian activated natural zeolite as enhanced CO2 capture material”. Chemical Papers. (2021).

47. E. Nurfani, A. Lailani, W.A.P. Kesuma, M.S. Anrokhi, G.T.M. Kadja, M. Rozana. “UV sensitivity enhancement in Fe-doped ZnO films grown by ultrafast spray pyrolysis”. Optical Materials 112, 110768. (2021).

45. M. Khalil, F. Naumi, U. Pratomo, T.A. Ivandini, G.T.M. Kadja, J.Y. Mulyana. “Coexposed TiO2’s (001) and (101) facets in TiO2/BiVO4 photoanodes for an enhanced photocatalytic fuel cell”. Applied Surface Science, 542, 148746. (2021).

44. M. Khalil, G.T.M. Kadja, M.M. Ilmi. “Advanced nanomaterials for catalysis: Current progress in fine chemical synthesis, hydrocarbon processing, and renewable energy”. Journal of Industrial and Engineering Chemistry, 93, 78-100. (2021).

43. I. Arifin, G.T.M. Kadja, C.L. Radiman. “Improving the Viscosity of Partially Hydrolyzed Polyacrylamide (PHPAM) Solution for Enhanced Oil Recovery (EOR) Application”. Key Engineering Materials 874, 45-49. (2021).

42. Ismunandar, N. Nurdini, M.M. Ilmi, E. Maryanti, G.T.M. Kadja. “Investigation on the Crystal Structures of Hematite Pigments at Different Sintering Temperatures”. Key Engineering Materials 874, 20-27. (2021).

41. F. Primayudha, D.N. Sahdarani, G.T.M. Kadja. “The relationship of volcanic facies and temperature range derived from the associated clay mineral in Gunung Endut, Banten”. Journal of Physics: Conference Series 1725(1), 012073. (2021).

40. M. Kurniawati, N.J. Azhari, G.T.M. Kadja, R.R. Mukti, S. Notodarmojo. “Conversion of coal fly ash into advanced crystalline materials”. IOP Conference Series: Earth and Environmental Science 623(1), 012040. (2021).