Capparis spinosa L waste activated carbon as an efficient adsorbent for crystal violet toxic dye removal:Modeling,optimization by experimental design,and ecological analysis

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外文摘要：Textile dyes are dramatic sources of pollution and non-aesthetic disturbance of aquatic life and therefore represent a potential risk of bioaccumulation that can affect living species. It is imperative to reduce or eliminate these dyes from liquid effluents with innovative biomaterials and methods. Therefore,this research aims to highlight the performance of Capparis spinosa L waste-activated carbon (CSLW-AC) adsorbent to remove crystal violet (CV) from an aqueous solution. The mechanism of CV adsorption on CSLW-AC was evaluated based on the coupling of experimental data and different characterization tech-niques. The efficiency of the CSLW-AC material reflected by the equilibrium adsorption capacity of CV could reach more than 195.671 mg·g-1 when 0.5 g·L-1 of CSLW-AC (Particle size≤250μm) is introduced into the CV of initial concentration of 100 mg·L-1 at pH 6 and temperature 65 ℃ and in the presence of potassium ions after 60 min of contact time according to the one parameter at a time studies. The adsorption behavior of CV on CSLW-AC was found to be consistent with the pseudo-second-order kinetic model and Frumkin's linear isothermal model. The thermodynamic aspects indicate that the process is physical,spontaneous,and endothermic. The optimization of the process by the Box Behnken design of experiments resulted in an adsorption capacity approaching 183.544 mg·g-1 ([CV]=100 mg·L-1 and[CSLW-AC]=0.5 g·L-1 at 35 min). The results of the Lactuca sativa seeds germination in treated CV (70％),adsorbent solvent and thermal regeneration (more than 5 cycles),and process cost analysis (1.0484 USD·L-1) tests are encour-aging and promising for future exploitations of the CSLW-AC material in different industrial fields.

外文关键词：

Box BehnkenCapparis spinosa L waste-activated carbonCost analysisIsothermKineticRegeneration

作者：

Mohammed Benjelloun、Youssef Miyah、Salma Ssouni、Soulaiman Iaich、Mohamed El-habacha、Salek Lagdali、Khadija Saka、El Mustafa Iboustaten、Abdelaziz Ait Addi、Sanae Lairini、Rabia Bouslamti

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作者单位：

Laboratory of Materials,Processes,Catalysis,and Environment,Higher School of Technology,Sidi Mohamed Ben Abdellah University,Fez 30070,Morocco

Ministry of Health and Social Protection,Higher Institute of Nursing Professions and Health Techniques,Fez/Meknes 30070,Morocco

Laboratory of Biochemistry,Faculty of Medicine,Pharmacy and Dentistry,Sidi Mohamed Ben Abdellah University,Fez 30070,Morocco

Laboratory of Applied Chemistry and Environment,Faculty of Sciences,Ibnou Zohr University,Agadir 80322,Morocco

Research Team of Energy and Sustainable Development,Higher School of Technology,Ibnou Zohr University,Guelmim 81000,Morocco

Organic Chemistry and Physical Chemistry Laboratory,Faculty of Sciences,Ibnou Zohr University,Agadir 80322,Morocco

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出版年：

2024

DOI：

10.1016/j.cjche.2024.04.010

中国化学工程学报(英文版)

中国化工学会

中国化学工程学报(英文版)

CSTPCDEI

影响因子：0.818

ISSN：1004-9541

年,卷(期)：2024.71(7)