Response surface methodology approach for optimization of ciprofloxacin adsorption using activated carbon derived from the residue of desilicated rice husk

Zhang, Binpeng; Han, Xiuli; Gu, Pengju; Fang, Shuqi; Bai, Jing

doi:10.1016/j.molliq.2017.04.022

Cited by 118 publications

(28 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The order of significance of the independent variables affecting GA removal is as follows: solution pH > MIEX resin dosage > adsorption time > GA concentration. This is consistent with the ANOVA results given in Table 3, according to the sum of squares and P values of four independent variables [46].…”

Section: Significant Degree Of Independent Variables On Ga Removalsupporting

confidence: 92%

See 1 more Smart Citation

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

et al. 2020

View full text Add to dashboard Cite

In this work, the response surface methodology was used to optimize the process parameters of gallic acid adsorption on magnetic ion exchange (MIEX) resin. Based on Box-Behnken Design, a quadratic polynomial model equation including solution pH, gallic acid concentration, MIEX resin dosage and adsorption time was established. The reliability of the established regression equation was tested by variance analysis. Based on the regression equation, the technical parameters for gallic acid adsorption on MIEX resin were optimized and the effects of interaction between variables on the removal of gallic acid were analyzed. The results showed that the established regression equation was reliable and could effectively predict the removal of gallic acid. The optimal technical parameters were determined to be a pH of 9.17, a gallic acid concentration of 8.07 mg/L, a resin dosage of 0.98 mL/L and an adsorption time of 46.43 min. The removal efficiency of gallic acid was 97.93% under the optimal parameters. The interaction between pH and adsorption time had the most significant effect on the removal of gallic acid. The results of this study demonstrated that MIEX resin can remove gallic acid efficiently and relatively quickly under the condition of optimal technical parameters.

show abstract

Section: Significant Degree Of Independent Variables On Ga Removalsupporting

confidence: 92%

“…is consistent with the ANOVA results given in Table 3, according to the sum of squares and P values of four independent variables [46].…”

Section: Significant Degree Of Independent Variables On Ga Removalsupporting

confidence: 92%

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

et al. 2020

View full text Add to dashboard Cite

show abstract

“…RSM is a combined statistical and mathematical method that uses the polynomial equation to study the relationship between the numerous independent parameters and also one or more responses [36]. Compared to conventional optimisation technique, RSM reduces the time and cost involved [37]. The most popular design strategy, central composite rotatable designs (CCRD), was employed in the present study to optimise the process parameters such as adsorbent dosage, initial dye concentration, pH and their interaction in adsorption of methylene blue onto physically (SCH) and chemically treated (NCH) coffee husk.…”

Section: Design Of Experimentsmentioning

confidence: 99%

Process optimisation of methylene blue sequestration onto physical and chemical treated coffee husk based adsorbent

Murthy

Gowrishankar

2020

SN Appl. Sci.

View full text Add to dashboard Cite

Coffee husk (CH) was physically and chemically treated with autoclaving (SCH) and NaOH (NCH) to develop low-cost adsorbent for the removal of methylene blue (MB) from synthetic wastewater, and their adsorption efficiencies were evaluated in batch mode. The prepared adsorbent was characterised by SEM, FTIR and point of zero charge. The central composite rotatable design (CCRD) was employed to optimise the adsorption process parameters such as pH, adsorbent dosage and initial MB concentration. The second-order quadratic model fitted best with the experimental adsorption data, and ANOVA results showed that the developed model was significant. The linear terms in the model significantly influence the adsorption capacity of SCH and NCH, but interaction terms were not significant. At optimised conditions, the developed adsorbents can remove > 90% of MB from the aqueous solution. Freundlich model showed a better fit with the adsorption isotherm data with R 2 greater than 0.95. Kinetics of MB adsorption onto SCH and NCH followed the pseudo-second-order model. The maximum monolayer adsorption capacity was found to be 129 and 200 mg/g for SCH and NCH, respectively. The present study showed that pretreated coffee husk waste can be used as an alternative for expensive adsorbents for the removal of dyes from wastewater.

show abstract

“…From this study, it can be clearly seen that the Zr 3 O/AC dose (with a positive influence) and the initial concentration (with a negative influence) are the first factors influencing the MB and CV adsorption onto Zr 3 O/AC or Zr 3 O/AC. is probably returns to the availability of active sites, when the Zr 3 O/AC mass of the support increases [60].…”

Section: Statistical Analysis and Model Fittingmentioning

confidence: 99%

Adsorptive Removal of Methylene Blue and Crystal Violet onto Micro-Mesoporous Zr₃O/Activated Carbon Composite: A Joint Experimental and Statistical Modeling Considerations

Ahsaine

Anfar

Zbair

et al. 2018

Journal of Chemistry

View full text Add to dashboard Cite

Zirconium oxide/activated carbon (Zr3O/AC) composite was synthesized to remove methylene blue (MB) and crystal violet (CV) from the aqueous medium. The Zr3O/AC sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analyses (EDS), Raman spectroscopy (RS), BET surface area, and Fourier transform infrared spectroscopy (FTIR). XRD profiles confirmed the successful synthesis of the zirconium oxide/activated carbon composite. SEM images showed multideveloped walls with irregular particle size with channel arrays. The nitrogen physisorption combines I and IV types with a calculated BET surface area of 1095 m2/g. Raman spectrum illustrated a disorder of both crystalline structure and the graphitic structure. The adsorption was better fitted to the pseudo-second-order (PSO) kinetic model. Langmuir model fitted better the experimental results of MB adsorption, whereas the CV was better consistent with the Freundlich model. The obtained results suggested that the MB and CV adsorption might be influenced by the mass transfer that involves multiple diffusion steps. The maximum adsorption capacities are 208.33 and 204.12 mg/g for MB and CV, respectively. The MB and CV removal mechanisms were proposed, and statistical optimization was performed using central composite design combined with the response surface methodology.

show abstract

Response surface methodology approach for optimization of ciprofloxacin adsorption using activated carbon derived from the residue of desilicated rice husk

Cited by 118 publications

References 44 publications

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

Process optimisation of methylene blue sequestration onto physical and chemical treated coffee husk based adsorbent

Adsorptive Removal of Methylene Blue and Crystal Violet onto Micro-Mesoporous Zr₃O/Activated Carbon Composite: A Joint Experimental and Statistical Modeling Considerations

Contact Info

Product

Resources

About

Response surface methodology approach for optimization of ciprofloxacin adsorption using activated carbon derived from the residue of desilicated rice husk

Cited by 118 publications

References 44 publications

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

Process optimisation of methylene blue sequestration onto physical and chemical treated coffee husk based adsorbent

Adsorptive Removal of Methylene Blue and Crystal Violet onto Micro-Mesoporous Zr3O/Activated Carbon Composite: A Joint Experimental and Statistical Modeling Considerations

Contact Info

Product

Resources

About

Adsorptive Removal of Methylene Blue and Crystal Violet onto Micro-Mesoporous Zr₃O/Activated Carbon Composite: A Joint Experimental and Statistical Modeling Considerations