Molecules, Free Full-Text
Por um escritor misterioso
Last updated 18 março 2025

This study explored the effects of solution pH, biosorbent dose, contact time, and temperature on the Pb(II) biosorption process of natural and chemically treated leaves of A. compressa K. (Raw-AC and AC-OH, respectively). The results show that the surface characteristics of Raw-AC changed following alkali treatment. FT-IR analysis showed the presence of various functional groups on the surface of the biosorbent, which were binding sites for the Pb(II) biosorption. The nonlinear pseudo-second-order kinetic model was found to be the best fitted to the experimental kinetic data. Adsorption equilibrium data at pH = 2–6, biosorbents dose from 5 to 20 mg/L, and temperature from 300.15 to 333.15 K were adjusted to the Langmuir, Freundlich, and Dubinin–Radushkevich (D-R) isotherm models. The results show that the adsorption capacity was enhanced with the increase in the solution pH and diminished with the increase in the temperature and biosorbent dose. It was also found that AC-OH is more effective than Raw-AC in removing Pb(II) from aqueous solutions. This was also confirmed using artificial neural networks and genetic algorithms, where it was demonstrated that the improvement was around 57.7%. The nonlinear Langmuir isotherm model was the best fitted, and the maximum adsorption capacities of Raw-AC and AC-OH were 96 mg/g and 170 mg/g, respectively. The removal efficiency of Pb(II) was maintained approximately after three adsorption and desorption cycles using 0.5 M HCl as an eluent. This research delved into the impact of solution pH, biosorbent characteristics, and operational parameters on Pb(II) biosorption, offering valuable insights for engineering education by illustrating the practical application of fundamental chemical and kinetic principles to enhance the design and optimization of sustainable water treatment systems.

Molecules, Free Full-Text

Molecules, Free Full-Text

Angewandte Chemie International Edition: Early View

scientific background with molecules or atoms Abstract structure

Molecules An Open Access Journal from MDPI

Free molecules stock photos. Download the best free molecules

Gga Software Services Api - Colaboratory

Molecules An Open Access Journal from MDPI

Tuneup 2.7 0.1 Get File - Colaboratory

BIOINFORMATICS APPLICATIONS NOTE doi:10.1093/bioinformatics/btm341
Recomendado para você
-
Pastor chama Nossa Senhora Aparecida de 'Satanas fantasiado de azul' : r/brasil18 março 2025
-
APRENDA a DESTRUIR o MATE PASTOR18 março 2025
-
Coloração e Pigmentação18 março 2025
-
⇨ Jaque MATE PASTOR con NEGRAS 🏴☠️18 março 2025
-
A. Location of the site of Peña Negra. B. Topographic plan of the18 março 2025
-
How much would you pay for these al pastor fries? #alpastor #loadedfri18 março 2025
-
Unicooper Supermercados MISTURA P/ BOLO APTI FLORESTA NEGRA 400G18 março 2025
-
97 — Bastidores: O Hebreu. Episódio do podcast Vida de Jornalista…, by Vida de Jornalista18 março 2025
-
Afropop Worldwide18 março 2025
-
Fundamentalismo e imperialismo na América Latina: ações e resistências18 março 2025
você pode gostar
-
Crash Bandicoot™ - Crashiversary Bundle18 março 2025
-
Goku And Vegeta Drip Wallpapers - Wallpaper Cave18 março 2025
-
Texto mostrando inspiração Não Conformidade Conformidade. Palavra Escrita em Resistente à Regra em Acordo com a Lei Criando Novo Conceito de Jogo de Digitação, Soluções de Problemas de Digitação Abstrato fotos, imagens18 março 2025
-
Baldi's Basics And A Bunch Of New Items [Baldi's Basics] [Mods]18 março 2025
-
xbox games18 março 2025
-
Image tagged in memes,funny,mr beast - Imgflip18 março 2025
-
Cursos gratuitos de Idiomas: matrícula grátis18 março 2025
-
Mario Shop Super Mario Backpack With Lunch Box For18 março 2025
-
Pronomes relativos em inglês: você sabe? - Vepca Inglês Corporativo18 março 2025
-
Manga] The series that mocked its contemporaries and lasted only a single chapter - the story of Isekai Tenseisha Koroshi: Cheat Slayer : r/HobbyDrama18 março 2025