| Texto completo | |
| Autor(es): |
Cunha, Isadora Luiza Climaco
;
de Assis, Geovania Cordeiro
;
Metolina, Patricia
;
Palharim, Priscila Hasse
;
Gusmao, Carolina de Araujo
;
Kulay, Luiz
;
Teixeira, Antonio Carlos Silva Costa
;
Ramos, Bruno
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PROCESSES; v. 14, n. 1, p. 29-pg., 2025-12-27. |
| Resumo | |
Despite being frequently proposed as a low-carbon solution for wastewater treatment and solar fuel production, the feasibility of photocatalytic processes in large-scale deployments remains unclear. This review evaluates the scalability of photocatalytic technologies by synthesizing a decade (2015-2025) of techno-economic analysis (TEA) and life-cycle assessment (LCA) studies. Using a systematic search and programmatic screening, 77 assessment-focused publications were identified from an initial corpus of 854 studies. Across applications, TEA and LCA consistently highlight two dominant barriers to scale-up: high electricity demand in UV-driven systems and significant cradle-to-gate impacts associated with catalyst synthesis, particularly for nanostructured materials. When solar irradiation replaces artificial light, environmental and economic hotspots shift from energy use to material production, catalyst durability, and reuse assumptions. Wide variability in reported costs and impacts reflects heterogeneous methodologies, limited pilot-scale data, and a lack of standardized reporting. Overall, assessment-based evidence indicates that photocatalysis is not yet ready for widespread industrial deployment as a large industrial process. However, continuous advances in solar-driven reactor design, low-impact and circular catalyst synthesis, hybrid process integration, and harmonized TEA/LCA frameworks could substantially improve its prospects for scalable, climate-positive implementation, especially in the context of emerging green energy alternatives. (AU) | |
| Processo FAPESP: | 23/14214-4 - Desenvolvimento de catalisadores estruturados para a síntese fotocatalítica de amônia |
| Beneficiário: | Bruno Ramos |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Regular |
| Processo FAPESP: | 21/11590-0 - Síntese, Caracterização e Avaliação de Desempenho de Heterojunções de Óxidos Metálicos à base de TiO2 com Potenciais Aplicações em Sistemas Fotocatalíticos |
| Beneficiário: | Geovânia Cordeiro de Assis |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 25/13192-2 - Materiais híbridos quirais de nanopartículas de Au, Pd, Pt e TiO2 e WO3 para desproporcionamento fotoeletroquímico de água |
| Beneficiário: | Priscila Hasse Palharim |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |