A series of materials, such as g-C3N4 from Melamine and Thiourea, NSs g-C3N4 from Melamine and Thiourea, were synthetized to show the effective good catalyst properties of g-C3N4 in hydrogen evolution from water, using solar light, experiments (HER). In order to see the influences on the catalysis of Ag nanoparticles (NPs), a series of different hetero junctions with different percentage of silver loaded, were synthesized. The hetero junctions were created using g-C3N4 functionalized with thiol groups, since they form a strong bond with Ag. The materials synthesized were Ag NPs/g-C3N4 0.5%, Ag NPs/g-C3N4 1%, Ag NPs/g-C3N4 2%, Ag NPs/g-C3N4 3.5%, Ag NPs/g-C3N4 5%. All of them showed a good production of hydrogen without the use of any co-catalyst, this proves the great capacity of those substances, gave from the addiction of Ag NPs. In addiction, CO2 photo reduction was tested with iron porphyrins catalysts, in order to transform CO2 in CO and CH4. Different experiments were made and they showed good results with high turnover numbers (TON) demonstrating the very good properties of those materials.
A series of materials, such as g-C3N4 from Melamine and Thiourea, NSs g-C3N4 from Melamine and Thiourea, were synthetized to show the effective good catalyst properties of g-C3N4 in hydrogen evolution from water, using solar light, experiments (HER). In order to see the influences on the catalysis of Ag nanoparticles (NPs), a series of different hetero junctions with different percentage of silver loaded, were synthesized. The hetero junctions were created using g-C3N4 functionalized with thiol groups, since they form a strong bond with Ag. The materials synthesized were Ag NPs/g-C3N4 0.5%, Ag NPs/g-C3N4 1%, Ag NPs/g-C3N4 2%, Ag NPs/g-C3N4 3.5%, Ag NPs/g-C3N4 5%. All of them showed a good production of hydrogen without the use of any co-catalyst, this proves the great capacity of those substances, gave from the addiction of Ag NPs. In addiction, CO2 photo reduction was tested with iron porphyrins catalysts, in order to transform CO2 in CO and CH4. Different experiments were made and they showed good results with high turnover numbers (TON) demonstrating the very good properties of those materials.
H2 Photo Production from water using Ag NPs/g-C3N4 heterojunctions
RAFFAELI, GIULIA
2021/2022
Abstract
A series of materials, such as g-C3N4 from Melamine and Thiourea, NSs g-C3N4 from Melamine and Thiourea, were synthetized to show the effective good catalyst properties of g-C3N4 in hydrogen evolution from water, using solar light, experiments (HER). In order to see the influences on the catalysis of Ag nanoparticles (NPs), a series of different hetero junctions with different percentage of silver loaded, were synthesized. The hetero junctions were created using g-C3N4 functionalized with thiol groups, since they form a strong bond with Ag. The materials synthesized were Ag NPs/g-C3N4 0.5%, Ag NPs/g-C3N4 1%, Ag NPs/g-C3N4 2%, Ag NPs/g-C3N4 3.5%, Ag NPs/g-C3N4 5%. All of them showed a good production of hydrogen without the use of any co-catalyst, this proves the great capacity of those substances, gave from the addiction of Ag NPs. In addiction, CO2 photo reduction was tested with iron porphyrins catalysts, in order to transform CO2 in CO and CH4. Different experiments were made and they showed good results with high turnover numbers (TON) demonstrating the very good properties of those materials.È consentito all'utente scaricare e condividere i documenti disponibili a testo pieno in UNITESI UNIPV nel rispetto della licenza Creative Commons del tipo CC BY NC ND.
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https://hdl.handle.net/20.500.14239/15789