Solar light driven degradation of textile dye contaminants for wastewater treatment – studies of novel polycationic selenide photocatalyst and process optimization by response surface methodology desirability factor

Nawaz, Arif; Atif, Muhammad; Khan, Adnan; Siddique, Mohsin; Ali, Nisar; Naz, Falak; Bilal, Muhammad; Momotko, Malwina; Haq, Hameed Ul; Boczkaj, Grzegorz

doi:10.1016/j.chemosphere.2023.138476

Cited by 49 publications

(5 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to evaluate the accuracy and reliability of the optimization, the desirability value must be high [49]. Desirability value being close to 1 indicates closeness to reaching the targeted value [50].…”

Section: Table 8 Optimization Parameters and Resultsmentioning

confidence: 99%

Investigation of the Combined Use of Diesel and CNG Fuels on an Hcci Engine Using Response Surface Methodology (Rsm)

Demirci,

Cinar,

Kocakulak

2024

Scientia Iranica

View full text Add to dashboard Cite

In this study, the effects of the combined use of diesel and compressed natural gas (CNG) fuels on the performance, combustion and emissions were experimentally and statistically investigated in a homogeneous charged compression ignition (HCCI) engine. Diesel and CNG fuels were used at different ratios between 0% and 80% by mass, and tests were conducted at different engine loads. The experimental procedure was designed using the response surface method (RSM) composite central design method. The experimental data were analyzed using MATLAB and entered into the RSM. In order to determine the response parameters predictably, model equations were created, counter graphs were drawn and optimization was carried out. Engine load and CNG ratio, which are the optimum input parameters, were determined as 68.36% and 2.864%, respectively. The response parameter values were obtained as 4.487 bar for IMEP, 39.3% for ITE, 255.5 g/kWh for BSFC, 3.343% for COV imep , 0.247% for CO, 191.566 ppm for HC, 579.538 ppm for NO x and 1.393 m -1 for smoke. This study, in which a combined diesel and CNG fueled engine operating in HCCI combustion mode is examined with experimental and statistical methods, will fill an important gap in the literature and provide researchers with a new perspective.

show abstract

Section: Table 8 Optimization Parameters and Resultsmentioning

confidence: 99%

Investigation of the Combined Use of Diesel and CNG Fuels on an Hcci Engine Using Response Surface Methodology (Rsm)

Demirci,

Cinar,

Kocakulak

2024

Scientia Iranica

View full text Add to dashboard Cite

show abstract

“…The combined use of cavitation and CCl 4 resulted in somewhat lower efficacy with actual degradation of 82%. Nawaz et al (2023) synthesized polycationic selenides (PCS) using a hydrothermal method to be applied for photocatalytic degradation of crystal violet and eosin-Y dyes. PCS demonstrated high efficacy, achieving 99.47% and 99.31% degradation at a dye concentration of 80 mg/L, a catalyst dose of 0.005 g, and pH levels of 11 and 5 within 60 min.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Procion brilliant yellow H‐E6G using ultrasonic and hydrodynamic cavitation combined with oxidants with demonstration at pilot scale

Momin,

Gogate

2024

Water Environment Research

View full text Add to dashboard Cite

The current study focuses on the degradation of Procion brilliant yellow H‐E6G, an azo dye, using ultrasonic and hydrodynamic cavitation (HC), evaluating the impact of various parameters on the extent of degradation. The use of only ultrasound showed less oxidation capacity as indicated by only 19.1% degradation at an optimized power of 140 W, pH of 2.5, temperature of 40°C, and initial dye concentration of 15 ppm. The effectiveness of hybrid approaches involving US + H2O2, US + Fenton, and US + H2O2 + potassium persulfate (KPS) was subsequently evaluated under optimized conditions. A notable enhancement in decolorization extent was observed for combined operations, including US + H2O2, US + Fenton, and US + H2O2 + KPS (dual oxidant scheme) with the actual decolorization extents as 80.6%, 85%, and 92.2% respectively. An optimized scheme of US + H2O2 + KPS was also utilized to decolorize the dye at a pilot scale using a US flow cell and also an HC reactor that yielded 91.8% and 88% reductions in initial concentration. The dye decolorization was elucidated to follow first‐order kinetics for all the individual and combination approaches. The obtained values of the rate constants were also utilized for the evaluation of the synergistic index. A toxicity analysis was also performed on the dye, both before and following treatment, utilizing two bacterial strains. A comparative analysis of various treatment approaches has been presented focusing on factors such as cavitational yield, operational expenses, and energy requirements. The study elucidated that the combination of US + H2O2 + KPS effectively removes Procion brilliant yellow H‐E6G giving 92.2% as the maximum degradation at an operating cost of 0.1862 $/L.Practitioner Points First depiction of cavitative degradation of Procion brilliant yellow H‐E6G Optimizing the equipment operating parameters and chemical oxidants Demonstration of optimized treatment scheme at pilot scale Evaluation of various approaches based on synergy and costs of treatment US + H2O2 + KPS is the best approach for dye degradation

show abstract

“…Alternatively, ZIF-8/BiFeO 3 , BiOBr, and ZnO can be used as new photocatalysts to overcome these limitations. Instead, metal selenides like polycationic selenides (PCS) can be employed as a photocatalyst for the degradation of dyes (Nawaz et al 2023). Effective photocatalytic wastewater treatment can be achieved using BiOBr due to its suitable and narrow band structure (Saddique et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Optimization and modeling of solar photocatalytic degradation of raw textile wastewater dyes using green ZnO-ED NPs by RSM

Dihom,

Mohamed,

Al-Gheethi

et al. 2024

Water Practice &Amp; Technology

View full text Add to dashboard Cite

This study aims to use green ZnO-ED NPs produced from Eleocharis dulcis (E. dulcis) extract to maximize solar photocatalytic degradation of raw textile wastewater. The optimization of photocatalysis was decided using the response surface methodology (RSM) as a function of ZnO-ED NPs mass load (0.1–2 g), initial concentration (10–100%), pH (4–9), and contact time (60–200 min). The maximum decolorization (87.34%) and COD removal (100%) were recorded at pH 7, time (60 min), ZnO-ED NPs dosage (2 g/L), and 10% of color concentrations with R2 coefficient of 0.78 at p < 0.05. FESEM analysis showed the presence of granules with smaller diameters than the diameter of the ZnO-ED NPs granules before SPD. EDX analysis revealed the presence of impurities like copper (Cu). XRD analysis indicated the purity of ZnO-ED NPs after SPD, as the values were all quite similar to the XRD values before SPD. The results of an AFM analysis presented that agglomerations of ZnO-ED NPs, in contrast, were somewhat homogeneous in size, nature, and dispersion before SPD.

show abstract

Solar light driven degradation of textile dye contaminants for wastewater treatment – studies of novel polycationic selenide photocatalyst and process optimization by response surface methodology desirability factor

Cited by 49 publications

References 48 publications

Investigation of the Combined Use of Diesel and CNG Fuels on an Hcci Engine Using Response Surface Methodology (Rsm)

Investigation of the Combined Use of Diesel and CNG Fuels on an Hcci Engine Using Response Surface Methodology (Rsm)

Degradation of Procion brilliant yellow H‐E6G using ultrasonic and hydrodynamic cavitation combined with oxidants with demonstration at pilot scale

Optimization and modeling of solar photocatalytic degradation of raw textile wastewater dyes using green ZnO-ED NPs by RSM

Contact Info

Product

Resources

About