Nano-silica from kaolinitic clay used as adsorbent for anionic and cationic dyes removal: linear and non-linear regression isotherms and kinetics studies
Published on: 24th May, 2022
The increasing occurrence of wastewaters associated with industrial development has begotten a permanent search for new and more efficient techniques for the removal of hazardous substances such as heavy metals and dyes. The use of natural and available resources to develop improved and sustainable commodities for this purpose remains crucial and is among promising emerging green technologies for water treatment. It offers the gradual shifting of hazardous industrial chemicals precursors to the abundant non-metallic mineral resources that receive an added value. This work investigated the uptake capacity by the adsorption process of methylene blue (MB) and azocarmine G (AG) onto nano-silica synthesized from kaolinite clay. The effects of contact time (0-30 min), the adsorbent dosage (5-100 mg), the initial pH of the solution (1-11 for MB and 1-7 for AG), and the initial dye concentration (5-50 mg/L) were studied. The selected conditions to carry out kinetic and isotherm adsorption experiments were: 15 mins, 20 mg, 11 for MB, 1.01 for AG, and 50 mg/L. Four adsorption isotherms and three kinetic models were used to model the adsorption data thanks to linear and non-linear regression methods. From the obtained results, the Freundlich isotherm model fitted well the adsorption phenomenon while the pseudo-second-order kinetic model described well the adsorption mechanism. Furthermore, the free energy of adsorption was similar for the two absorbents, 0.71 kJ, pointing physisorption as the dominant adsorption mechanism. The optimum MB and AG uptake were respectively 13.8 and 36.1 mg/g. Conclusively, the nano-silica represents a potentially viable and powerful adsorbent whose use could lead to a plausible improvement in environmental preservation.
Search by University/Institution
Enter your University/Institution to find colleagues at HSPI.
Ensuring author's satisfaction with
- Friendly and hassle-free publication process
- Less production time of articles
- Constructive peer-review
- Enhancing journal reputation
- Regular feedback system
- Quick response to authors' queries
Most Viewed Keywords
- Thoracic outlet
- Nystagmus
- Neurointerventional radiology (NIR)
- Coronavirus
- Evolution
- Patients
- Asphyxiophilia
- Primary PCI
- Ischemia
- Academic
- Participation
- Arthroscopy complications
- Postpartum
- One health
- Natriuretic peptide receptor
- Human anatomy
- Gibbs–Tolman–Koenig–Buff theory
- 188Re-liposome
- Hepato-pulmonary syndrome
- TCA: Traumatic corneal abrasion
Search Articles by Country
Get all latest articles in all Heighten Science Publications Inc journals by country.
Testmonials
We really appreciate your efforts towards our article, the professional way you handle our request for exemption from charges. It was a great honor for us to publish in your magazine.
Achraf elbakkaly
''Co-operation of Archives of Surgery and Clinical Research journal is appreciable. I'm impressed at the promptness of the publishing staff and the professionalism displayed. Thank you very much for y...
Anıl Gokce
I am very much pleased with the fast track publication by your reputed journal's editorial team. It is really helpful for researchers like me from developing nations. I strongly recommend your journ...
Badri Kumar Gupta
The Journal Clinical Nephrology provides a good opportunity for readers to stay updated in the field of clinical nephrology. Additionally - it provides a good opportunity for authors to publish their...
Assaf Harofeh Medical Center, Israel
Leonid Feldman
In 2017, I submitted a manuscript to the journal Archives of Biotechnology and Biomedicine belonging to Heighten Science Publications Corporation. Within one week I already received the response from ...
University of Tubingen, Germany
Yvonne Mast
Thank you very much for accepting our manuscript in your journal “International Journal of Clinical Virology”. We are very thankful to the esteemed team for timely response and quick review proces...
Abdul Baset
I am to express my view that Heighten Science Publications are reliable quick even after peer review process. I hope and wish the publications will go a long way in disseminating science to many inter...
College of Fisheries, CAU(I), Tripura, India
Ajit Kumar Roy
“It was a delightful experience publishing my manuscript with the Clinical Journal of Obstetrics and Gynecology. They offered me lots of opportunities I never had from most publishing houses and the...
Department of Agricultural Economics, Agribusiness...
Akowuah Jones Asafo
Archives of Vascular Medicine is one of the top class journal for vascular medicine with highly interesting topics. You did a professional and great Job!
Elias Noory
Many thanks for publishing my article in your great journal and the friendly and hassle-free publication process, the constructive peer-review, the regular feedback system, and the Quick response to a...