PMID- 32549406 OWN - NLM STAT- MEDLINE DCOM- 20210217 LR - 20221207 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 12 DP - 2020 Jun 15 TI - Hybrid Materials Based on Silica Matrices Impregnated with Pt-Porphyrin or PtNPs Destined for CO(2) Gas Detection or for Wastewaters Color Removal. LID - 10.3390/ijms21124262 [doi] LID - 4262 AB - Multifunctional hybrid materials with applications in gas sensing or dye removal from wastewaters were obtained by incorporation into silica matrices of either Pt(II)-5,10,15,20-tetra-(4-allyloxy-phenyl)-porphyrin (PtTAOPP) or platinum nanoparticles (PtNPs) alone or accompanied by 5,10,15,20-tetra-(4-allyloxy-phenyl)-porphyrin (TAOPP). The tetraethylorthosilicate (TEOS)-based silica matrices were obtained by using the sol-gel method performed in two step acid-base catalysis. Optical, structural and morphological properties of the hybrid materials were determined and compared by UV-vis, fluorescence and FT-IR spectroscopy techniques, by atomic force microscopy (AFM) and high resolution transmission electron microscopy (HRTEM) and by Brunauer-Emmett-Teller (BET) analysis. PtTAOPP-silica hybrid was the most efficient material both for CO(2) adsorption (0.025 mol/g) and for methylene blue adsorption (7.26 mg/g) from wastewaters. These results were expected due to both the ink-bottle mesopores having large necks that exist in this hybrid material and to the presence of the porphyrin moiety that facilitates chemical interactions with either CO(2) gas or the dye molecule. Kinetic studies concerning the mechanism of dye adsorption demonstrated a second order kinetic model, thus it might be attributed to both physical and chemical processes. FAU - Anghel, Diana AU - Anghel D AD - Institute of Chemistry "CoriolanDragulescu" of Romanian Academy, M. Viteazul Ave, No. 24, 300223 Timisoara, Romania. FAU - Lascu, Anca AU - Lascu A AUID- ORCID: 0000-0002-6081-3324 AD - Institute of Chemistry "CoriolanDragulescu" of Romanian Academy, M. Viteazul Ave, No. 24, 300223 Timisoara, Romania. FAU - Epuran, Camelia AU - Epuran C AD - Institute of Chemistry "CoriolanDragulescu" of Romanian Academy, M. Viteazul Ave, No. 24, 300223 Timisoara, Romania. FAU - Fratilescu, Ion AU - Fratilescu I AD - Institute of Chemistry "CoriolanDragulescu" of Romanian Academy, M. Viteazul Ave, No. 24, 300223 Timisoara, Romania. FAU - Ianasi, Catalin AU - Ianasi C AUID- ORCID: 0000-0002-5137-8164 AD - Institute of Chemistry "CoriolanDragulescu" of Romanian Academy, M. Viteazul Ave, No. 24, 300223 Timisoara, Romania. FAU - Birdeanu, Mihaela AU - Birdeanu M AUID- ORCID: 0000-0001-9895-802X AD - National Institute for Research and Development in Electrochemistry and Condensed Matter, P. Andronescu Street 1, 300224 Timisoara, Romania. FAU - Fagadar-Cosma, Eugenia AU - Fagadar-Cosma E AD - Institute of Chemistry "CoriolanDragulescu" of Romanian Academy, M. Viteazul Ave, No. 24, 300223 Timisoara, Romania. LA - eng GR - 76PCCDI/2018/Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii/ GR - Programe 3-Porphyrins/Institute of Chemistry "Coriolan Dragulescu", formerly The Institute of Chemistry Timisoara of the Romanian Academy/ PT - Journal Article DEP - 20200615 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Porphyrins) RN - 0 (Waste Water) RN - 142M471B3J (Carbon Dioxide) RN - 49DFR088MY (Platinum) RN - T42P99266K (Methylene Blue) SB - IM MH - Adsorption MH - Biosensing Techniques MH - Carbon Dioxide/*analysis MH - Metal Nanoparticles MH - Methylene Blue/*analysis MH - Microscopy, Atomic Force MH - Molecular Structure MH - Platinum/*chemistry MH - Porphyrins/*chemistry MH - Spectroscopy, Fourier Transform Infrared MH - Wastewater/*analysis PMC - PMC7352184 OTO - NOTNLM OT - Pt-pophyrin OT - PtNPs OT - silica hybrid materials OT - toxic dyes OT - wet carbon dioxide adsorption COIS- The authors declare no conflict of interest. EDAT- 2020/06/19 06:00 MHDA- 2021/02/18 06:00 PMCR- 2020/06/01 CRDT- 2020/06/19 06:00 PHST- 2020/05/15 00:00 [received] PHST- 2020/06/06 00:00 [revised] PHST- 2020/06/15 00:00 [accepted] PHST- 2020/06/19 06:00 [entrez] PHST- 2020/06/19 06:00 [pubmed] PHST- 2021/02/18 06:00 [medline] PHST- 2020/06/01 00:00 [pmc-release] AID - ijms21124262 [pii] AID - ijms-21-04262 [pii] AID - 10.3390/ijms21124262 [doi] PST - epublish SO - Int J Mol Sci. 2020 Jun 15;21(12):4262. doi: 10.3390/ijms21124262.