Production and Characterization of Graphene Oxide for Adsorption Analysis of the Emerging Pollutant Butylparaben DOI Open Access

Lorena Maihury Santos Tsubouchi,

Edson Araújo de Almeida, Diego Espirito Santo

et al.

Water, Journal Year: 2024, Volume and Issue: 16(24), P. 3703 - 3703

Published: Dec. 22, 2024

Emerging pollutants such as butylparaben (BP) are often difficult to remove via conventional wastewater treatment. Therefore, this study aimed produce and characterize graphene oxide (GO) evaluate the adsorption of BP on adsorbent. The GO was made using Hummers method characterized by TGA/DTA, XRD, XRF, BET, point zero charge (pHpzc), SEM, Boehman method. Adsorption experiments were performed in a batch system. removal efficiency from Box–Behnken experimental design 84.3% at concentration 600 µg∙L−1, adsorbent five g∙L−1, pH 7 solution. first-order (PFO) kinetics obtained best fit data compared other models tested study: pseudo-second-order (PSO), Elovich (ELC), intra-particle diffusion (IPD). Langmuir isotherm provided Freundlich isotherm. temperature effect showed that system has spontaneous process, with Gibbs energy lower than zero, increasing increases capacity. ionic salt 1 M increased repulsive forces but did not decrease regeneration cycle rate 85% up second cycle. toxicity analysis confirmed process before after GO.

Language: Английский

Enzymatic Evaluation of the Phytoaccumulative Capacity of Salvinia Biloba Under Stress Conditions Caused by Methylparaben and Chlorinated Derivatives DOI
Matheus Augusto de Souza Moura, Karine Mares de Oliveira, Gabrielle Cristina dos Santos Gonçalves do Nascimento

et al.

Water Air & Soil Pollution, Journal Year: 2024, Volume and Issue: 235(10)

Published: Sept. 12, 2024

Language: Английский

Citations

1
Production and Characterization of Graphene Oxide for Adsorption Analysis of the Emerging Pollutant Butylparaben DOI Open Access

Lorena Maihury Santos Tsubouchi,

Edson Araújo de Almeida, Diego Espirito Santo

et al.

Water, Journal Year: 2024, Volume and Issue: 16(24), P. 3703 - 3703

Published: Dec. 22, 2024

Emerging pollutants such as butylparaben (BP) are often difficult to remove via conventional wastewater treatment. Therefore, this study aimed produce and characterize graphene oxide (GO) evaluate the adsorption of BP on adsorbent. The GO was made using Hummers method characterized by TGA/DTA, XRD, XRF, BET, point zero charge (pHpzc), SEM, Boehman method. Adsorption experiments were performed in a batch system. removal efficiency from Box–Behnken experimental design 84.3% at concentration 600 µg∙L−1, adsorbent five g∙L−1, pH 7 solution. first-order (PFO) kinetics obtained best fit data compared other models tested study: pseudo-second-order (PSO), Elovich (ELC), intra-particle diffusion (IPD). Langmuir isotherm provided Freundlich isotherm. temperature effect showed that system has spontaneous process, with Gibbs energy lower than zero, increasing increases capacity. ionic salt 1 M increased repulsive forces but did not decrease regeneration cycle rate 85% up second cycle. toxicity analysis confirmed process before after GO.

Language: Английский

Citations

0