Scavenging Rhodamine B dye usingmoringa oleiferaseed pod

Bello, Olugbenga Solomon; Lasisi, Bukola Morenike; Adigun, Olamide Joshua; Vunain, Ephraim

doi:10.1080/09542299.2017.1356694

Cited by 65 publications

(72 citation statements)

References 77 publications

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“…3. Similar result was obtained by Bello et al, (2017). The difference in the adsorption capacity as the pH increases may be due to the formation of different ionic species and surface charges.…”

Section: Effect Of Phsupporting

confidence: 84%

Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (Newbouldia laevis) bark

Ajaelu¹,

Nwosu²,

Ibironke³

et al. 2018

Journal of Applied Sciences and Environmental Management

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This study investigated the biosorption efficiency of sodium hydroxide modified African Border tree (SMABT) bark powder on Safranin O, a cationic dye. The SMABT was characterized by Fourier Transform Infrared Spectroscopy (FTIR). As the initial dye concentration increased, the amount of Safranin O removed increased. The kinetic studies were described by pseudo first order and pseudo second order. The pseudo second order fitted very well into the kinetic experimental data. Freundlich, Langmuir, Temkin and Dubinin-Radushkevich (D-R) models were employed to describe the adsorption of Safranin O to SMABT and also to evaluate the isotherm constants. Langmuir model was the best of the four to excellently fit into the experimental data. The maximum uptake capacity of SMABT for Safranin O dye was 90.9 mg/g.

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Section: Effect Of Phsupporting

confidence: 84%

Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (Newbouldia laevis) bark

Ajaelu¹,

Nwosu²,

Ibironke³

et al. 2018

Journal of Applied Sciences and Environmental Management

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“…There was relatively constant dye uptake at 25 min of the contact time, that is, 105-120 min. Our previous study has shown that the adsorption tends to be rapid in the first 10-15 min and steadily reduces until equilibrium is attained (Bello et al 2017b). The reason for this was due to the large number of free pores on the surface of the activated coconut husk which enhanced the rapid uptake of Rh-B dye at the initial stage.…”

Section: Effects Of Contact Time and Initial Dye Concentrationmentioning

confidence: 97%

“…4, the pH pzc was determined to be at 3.69. This implies that adsorption of cations was improved at pH values higher than pH PZC , while anions adsorption is favored at pH value less than pH PZC (Farahani et al 2011;Bello et al 2017b;Olakunle et al 2018). It can be deduced from Fig.…”

Section: The Ph Point Of Zero Charge (Ph Pzc ) Determinationmentioning

confidence: 99%

“…where "N is the number of data points, q e,exp and q e,calc are the amount of the adsorbed Rh-B-dye, obtained experimentally and by calculation (mg g −1 ). The lower the value of SSE (%), the higher R 2 value, the better the kinetic model fitted" (Bello et al 2017b).…”

Section: Kinetic Model Fitness Testmentioning

confidence: 99%

“…Commercial activated carbon (CAC), used conventionally for adsorption processes and other varieties of application, is scare, expensive and non-renewable (Namasivayam and Sangeetha 2006;Parab et al 2009;Gupta et al 2010;Khan et al 2011;Wang and Chu 2011;Jain et al 2015;Rani et al 2017). The need for suitable replacements opens an opportunity for the effective use of agricultural wastes as adsorbent, and some of these largely available and inexpensive adsorbents have been reported for dye removal including cocoa pod husk (Olakunle et al 2018) Moringa oleifera seed pod (Bello et al 2017b), scrap tires (Li et al 2010) Raphia hookerie fruit epicarp (Inyinbor et al 2016), rambutan seed (Ahmad et al 2016), Durian seed (Ahmad et al 2015), sugarcane bagasse (Saad et al 2010), bengal gram seed husk (Somasekhara Reddy et al 2017), walnut shell (Ojo et al 2019) among others.…”

Section: Introductionmentioning

confidence: 99%

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Functionalized coconut husks for rhodamine-B dye sequestration

et al. 2019

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This study investigates the efficacy of acid activated coconut husk (CHA) for the removal of rhodamine-B (Rh-B) dye from aqueous solutions. The CHA prepared was characterized using various techniques: SEM, FTIR EDX, Boehm titration and pH pzc , respectively. The effects of different operational parameters including initial concentration, contact time and solution temperatures were examined. Kinetic data for Rh-B dye adsorption onto CHA fitted best to pseudo-second-order kinetic model considering the correlation regression (R 2 ) and the sum of squares of error values. Adsorption data were fitted to Langmuir, Freundlich, Dubinin-Radushkevich and Temkin isotherm models. Langmuir isotherm was the most fitted among all the models used with maximum monolayer sorption capacity of 1666.67 mg g −1 and the highest regression value of 0.99 indicating that CHA has greater affinity for Rh-B dye adsorption due to increased pore development via acid activation. Thermodynamic studies revealed an endothermic adsorption process with the ΔH 0 value of 62.77 kJ mol −1 . Spontaneity was ascertained based on the negative values of ΔG o (ranging from − 26.38 kJ mol −1 to − 20.93 kJ mol −1 ). The positive value of ΔS 0 (0.276 kJ mol −1 K −1 ) suggests increased randomness that exists between CHA and Rh-B dye. Cost analysis results revealed that CHA is six times cheaper than commercial activated carbon (CAC), providing a savings of 217 US$ kg −1 . CHA adsorbent was found to be suitable for Rh-B dye removal from aqueous solution.

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Moringa oleifera seed pod‐based adsorbent for the removal of paracetamol from aqueous solution: A novel approach toward diversification

Ogunmodede

Akanji

Bello

2021

Env Prog and Sustain Energy

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The removal of paracetamol (PCM) from aqueous solution using chemically modified Moringa seed pod activated carbon (MOSPAC) was investigated. MOSPAC was characterized using Fourier transform infrared spectroscopy, electron dispersive X-ray (EDX), and scanning electron microscopy, respectively. EDX results show that carbon in MOSP is 61.69% by weight and 61.18% by atom, while MOSPAC is 78.44% by weight and 88.80% by atom. The effects of operational parameters such as adsorbent dosage, initial PCM concentration, contact time, pH, and temperature were investigated. Langmuir model described the adsorption process mostly with adsorption capacity, q o of 20.284 mg g −1 . The Dubinin-Radushkevich (D-R) isotherm showed that the mean free energy, E D-R , ranged from 100 to 408 kJ mol −1 ,

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Scavenging Rhodamine B dye usingmoringa oleiferaseed pod

Cited by 65 publications

References 77 publications

Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (<i>Newbouldia laevis</i>) bark

Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (<i>Newbouldia laevis</i>) bark

Functionalized coconut husks for rhodamine-B dye sequestration

Moringa oleifera seed pod‐based adsorbent for the removal of paracetamol from aqueous solution: A novel approach toward diversification

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