Alginate@ZnCO2O4 for efficient peroxymonosulfate activation towards effective rhodamine B degradation: optimization using response surface methodology

被引：36

作者：

Channab, Badr-Eddine ^{[1
]}

El Ouardi, Mohamed ^{[2
,3
]}

Marrane, Salah Eddine ^{[1
]}

Layachi, Omar Ait ^{[4
]}

El Idrissi, Ayoub ^{[1
]}

Farsad, Salaheddine ^{[5
]}

Mazkad, Driss ^{[6
]}

BaQais, Amal ^{[7
]}

Lasri, Mohammed ^{[8
]}

Ahsaine, Hassan Ait ^{[2
]}

机构：

[1] Hassan II Univ, Fac Sci & Technol, Lab Mat Catalysis & Nat Resources Valorizat, URAC 24, BP 146, Casablanca, Morocco

[2] Mohammed V Univ Rabat, Fac Sci, Lab Appl Mat Chem, Rabat, Morocco

[3] Aix Marseille Univ, Univ Toulon, CNRS, IM2NP, CS 60584, F-83041 Toulon 9, France

[4] Hassan II Univ Casablanca, Fac Sci & Technol, Lab Phys Chem & Biotechnol Biomol & Mat, Mohammadia 20650, Morocco

[5] Ibn Zohr Univ, Mat & Environm Lab, Agadir 8000, Morocco

[6] Mohammed V Univ Rabat, Lab Spect Mol Modeling Mat Nanomat Water & Environ, Mat Environm Team, ENSAM, Rabat, Morocco

[7] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Chem, POB 84428, Riyadh 11671, Saudi Arabia

[8] Univ Cadi Ayyad, Fac Sci, Dept Chem, Lab Appl Chem & Biomass, BP 2390, Marrakech, Morocco

来源：

RSC ADVANCES | 2023年 / 13卷 / 29期

关键词：

HETEROGENEOUS ACTIVATION; ORGANIC POLLUTANTS; PHOTOCATALYTIC DEGRADATION; ENHANCED DEGRADATION; TRANSITION-METALS; FACILE SYNTHESIS; OXIDATION; REMOVAL; SULFATE; BEADS;

D O I：

10.1039/d3ra02865h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile chemical procedure was utilized to produce an effective peroxy-monosulfate (PMS) activator, namely ZnCo2O4/alginate. To enhance the degradation efficiency of Rhodamine B (RhB), a novel response surface methodology (RSM) based on the Box-Behnken Design (BBD) method was employed. Physical and chemical properties of each catalyst (ZnCo2O4 and ZnCo2O4/alginate) were characterized using several techniques, such as FTIR, TGA, XRD, SEM, and TEM. By employing BBD-RSM with a quadratic statistical model and ANOVA analysis, the optimal conditions for RhB decomposition were mathematically determined, based on four parameters including catalyst dose, PMS dose, RhB concentration, and reaction time. The optimal conditions were achieved at a PMS dose of 1 g l(-1), a catalyst dose of 1 g l(-1), a dye concentration of 25 mg l(-1), and a time of 40 min, with a RhB decomposition efficacy of 98%. The ZnCo2O4/alginate catalyst displayed remarkable stability and reusability, as demonstrated by recycling tests. Additionally, quenching tests confirmed that SO4-/OH radicals played a crucial role in the RhB decomposition process.

引用

页码：20150 / 20163

页数：14

共 91 条

[1] Green fabrication of bentonite/chitosan@cobalt oxide composite (BE/CH@Co) of enhanced adsorption and advanced oxidation removal of Congo red dye and Cr (VI) from water [J].