Adsorption of methylene blue dye onto alginate-bioglass membranes: response surface method, isotherm, and kinetic studies

Hasan Türe

Makale detayları

Adsorption of methylene blue dye onto alginate-bioglass membranes: response surface method, isotherm, and kinetic studies

Yazarlar:

Hasan Türe

Yayıncı:

Gumushane University

Ana Başlıklar:

Mühendislik

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 3, pp.538-552

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001293267

pISSN:

2146-538X

Anahtar kelimeler:

Özet:

 In this research, environment-friendly composite membranes based on alginate ALG and bioglass nanoparticles BGs were prepared by the solvent casting technique and utilized as adsorbents for the elimination of methylene blue MB from water. Zeta potential of the particles was determined to be -24.9 mV by laser dynamic light scattering DLS, and their sizes were found to be 773 and 777 nm by transmission electron microscopy TEM and DLS analysis, respectively. Atomic force microscope AFM analysis revealed that increasing the BGs content from 1 to 5 wv caused the root mean square roughness of membranes to increase from 159.38 to 182.03 nm. The adsorption process was successfully modeled and optimized using a hybrid response surface methodology integrated central composite design RSM-CCD. A statistical analysis was utilized to examine and optimize the effects of three important independent variables concentration of BGs 1-5 wv, pH of the solution 3-9, and initial dye level 15-45 mg L-1 on MB adsorption performance. The findings indicated that the quadratic model was suitable for prediction of MBs removal. Optimized experimental parameters were found to be a pH of 9, a contact time of 120 min, an initial MB concentration of 45 mg L-1, and a BGs concentration of 1 wv. Freundlich isotherm and pseudo-second-order kinetic models were found to be the best-fitting models in isotherm and kinetic studies, respectively. Dubinin-Radushkevich D-R isotherm model predicted a chemical mechanism for MB adsorption onto the composite alginate membranes.

 In this research, environment-friendly composite membranes based on alginate ALG and bioglass nanoparticles BGs were prepared by the solvent casting technique and utilized as adsorbents for the elimination of methylene blue MB from water. Zeta potential of the particles was determined to be -24.9 mV by laser dynamic light scattering DLS, and their sizes were found to be 773 and 777 nm by transmission electron microscopy TEM and DLS analysis, respectively. Atomic force microscope AFM analysis revealed that increasing the BGs content from 1 to 5 wv caused the root mean square roughness of membranes to increase from 159.38 to 182.03 nm. The adsorption process was successfully modeled and optimized using a hybrid response surface methodology integrated central composite design RSM-CCD. A statistical analysis was utilized to examine and optimize the effects of three important independent variables concentration of BGs 1-5 wv, pH of the solution 3-9, and initial dye level 15-45 mg L-1 on MB adsorption performance. The findings indicated that the quadratic model was suitable for prediction of MBs removal. Optimized experimental parameters were found to be a pH of 9, a contact time of 120 min, an initial MB concentration of 45 mg L-1, and a BGs concentration of 1 wv. Freundlich isotherm and pseudo-second-order kinetic models were found to be the best-fitting models in isotherm and kinetic studies, respectively. Dubinin-Radushkevich D-R isotherm model predicted a chemical mechanism for MB adsorption onto the composite alginate membranes.

 In this research, environment-friendly composite membranes based on alginate ALG and bioglass nanoparticles BGs were prepared by the solvent casting technique and utilized as adsorbents for the elimination of methylene blue MB from water. Zeta potential of the particles was determined to be -24.9 mV by laser dynamic light scattering DLS, and their sizes were found to be 773 and 777 nm by transmission electron microscopy TEM and DLS analysis, respectively. Atomic force microscope AFM analysis revealed that increasing the BGs content from 1 to 5 wv caused the root mean square roughness of membranes to increase from 159.38 to 182.03 nm. The adsorption process was successfully modeled and optimized using a hybrid response surface methodology integrated central composite design RSM-CCD. A statistical analysis was utilized to examine and optimize the effects of three important independent variables concentration of BGs 1-5 wv, pH of the solution 3-9, and initial dye level 15-45 mg L-1 on MB adsorption performance. The findings indicated that the quadratic model was suitable for prediction of MBs removal. Optimized experimental parameters were found to be a pH of 9, a contact time of 120 min, an initial MB concentration of 45 mg L-1, and a BGs concentration of 1 wv. Freundlich isotherm and pseudo-second-order kinetic models were found to be the best-fitting models in isotherm and kinetic studies, respectively. Dubinin-Radushkevich D-R isotherm model predicted a chemical mechanism for MB adsorption onto the composite alginate membranes.

 Bu çalışmada, solvent çözücü döküm yöntemi ile aljinat ALG ve biyocam nanopartikül BGs bazlı çevre dostu kompozit membranlar hazırlanmış ve metilen mavisinin MB sudan uzaklaştırılması için adsorban olarak kullanılmıştır. Partiküllerin zeta potansiyeli, lazer dinamik ışık saçılımı DLS ile -24,9 mV olarak belirlenmiş ve boyutları, transmisyon elektron mikroskobu TEM ve DLS analizi ile sırasıyla 773 ve 777 nm olarak bulunmuştur. Atomik kuvvet mikroskobu AFM analizi, BGs içeriğinin 1den 5e çıkarılmasının, membranların karekök ortalama pürüzlülüğünün 159,38 nmden 182,03 nmye çıkmasına neden olduğunu ortaya koymuştur. Adsorpsiyon süreci, hibrit cevap yüzey metodolojisi ile bütünleşmiş merkezi bileşik tasarım RSM-CCD kullanılarak başarılı bir şekilde modellenmiş ve optimize edilmiştir. Üç önemli bağımsız değişkenin BGs konsantrasyonu 1-5 ah, solüsyonun pHı 3- 9, ve başlangıç boya konsantrasyonu 15-45 mg L-1 MB adsorpsiyon kapasitesi üzerindeki etkilerini değerlendirmek ve optimize etmek için istatistiksel analiz gerçekleştirilmiştir. Sonuçlar, ikinci dereceden modelin MBnin uzaklaştırılmasının tahmini için uygun olduğunu ortaya koymuştur. Optimize edilmiş deneysel parametreler, pH9, 120 dk temas süresi, 45 mg L-1 başlangıç MB konsantrasyonu ve 1 ah BGs konsantrasyonu olarak tespit edilmiştir. Freundlich izotermi ve yalancı ikinci dereceden kinetik modellerinin sırasıyla izoterm ve kinetik çalışmalarda en uygun modeller olduğu bulunmuştur. Dubinin-Radushkevich D-R izoterm modeli, kompozit aljinat membranlara MB adsorpsiyonu için kimyasal bir mekanizma öngörmüştür.

Makale detayları

Adsorption of methylene blue dye onto alginate-bioglass membranes: response surface method, isotherm, and kinetic studies

Yazarlar:

Hasan Türe

Yayıncı:

Gumushane University

Ana Başlıklar:

Mühendislik

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 3, pp.538-552

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001293267

pISSN:

2146-538X

Alginate

Bioactive glass

Methylene blue

Optimization

Response surface methodAljinat

Biyoaktif cam

Metilen mavisi

Optimizasyon

Cevap yüzey yöntemi

Sayı

Makale detayları

Yazarlar: Hasan Türe

Yayıncı: Gumushane University

Ana Başlıklar: Mühendislik

Dergi: Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 3, pp.538-552

Belge Tipi: Makale

Yayın Tarihi: 7/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001293267

pISSN: 2146-538X

Sayı

Yazarlar:

Hasan Türe

Yayıncı:

Gumushane University

Ana Başlıklar:

Mühendislik

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 3, pp.538-552

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001293267

pISSN:

2146-538X