Citric Acid Functionalized Bougainvillea spectabilis: a Novel, Sustainable, and Cost-effective Biosorbent for Removal of Heavy Metal (Pb2+) from Waste Water

Nazir, Huma; Salman, Muhammad; Athar, Makshoof; Farooq, Umar; Wahab, Abdul; Akram, Momal

doi:10.1007/s11270-019-4360-1

Cited by 21 publications

(10 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…193 Acid modification through hydrothermal treatment could also increase the carboxyl functionality of Bougainvillea spectabilis , achieving the removal of 99.5% of Pb( ii ) from aqueous solution through ion exchange and electrostatic interactions. 194 Furthermore, plant biomass can be utilized for the production of activated charcoal or biochar to eliminate heavy metals such as Co( ii ), Ni( ii ), and Zn( ii ). 195,196 Therefore, these wastes are expected to offer significant advantages over expensive commercial adsorbents.…”

Section: Adsorbents For Heavy Metal Removalmentioning

confidence: 99%

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

Fei

2022

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Section: Adsorbents For Heavy Metal Removalmentioning

confidence: 99%

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

Fei

2022

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…In addition, citric acid was used to modify the biosorbent B. spectabilis for the biosorption of Pb 2+ ions from an aqueous medium. Citric acid-modified B. spectabilis showed a noticeably higher capacity for biosorbing Pb 2+ ions from an aqueous medium than unmodified B. spectabilis 16 . One distinguishing feature of biosorbents is that they can be alive or dead.…”

Section: Introductionmentioning

confidence: 91%

An immobilized biosorbent from Paenibacillus dendritiformis dead cells and polyethersulfone for the sustainable bioremediation of lead from wastewater

Dawwam

Abdelfattah

Abd‐Elmonem

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Heavy metals, including lead, cause serious damage to human health and the surrounding environment. Natural biosorbents arise as environmentally friendly alternatives. In this study, two of the 41 isolates (8EF and 17OS) were the most efficient bacteria for growing on media supplemented with Pb2+ (1000 mg/L). At high concentrations up to 2000 mg/L, the pioneer isolate 17OS exhibited remarkable resistance to multiheavy metals. This isolate was identified as Paenibacillus dendritiformis 17OS and deposited in GenBank under accession number ON705726.1. Design-Expert was used to optimize Pb2+ metal removal by the tested bacteria. Results indicated that four of six variables were selected using a minimum-run resolution IV experimental design, with a significant affecting Pb2+ removal. Temperature and Pb2+ concentration were significant positive influences, whereas incubation period and agitation speed were significant negative ones. The tested strain modulated the four significant variables for maximum Pb2+ removal using Box–Behnken design. The sequential optimization method was beneficial in increasing biosorption by 4.29%. Dead biomass of P. dendritiformis 17OS was embedded with polyethersulfone to get a hydrophilic adsorptive membrane that can separate Pb2+ easily from aqueous solutions. SEM images and FT-IR analysis proved that the new biosorbent possesses a great structure and a lot of surface functional groups with a negative surface charge of − 9.1 mV. The removal rate of 200 mg/L Pb2+ from water reached 98% using 1.5 g/L of the immobilized biosorbent. The adsorption isotherm studies were displayed to determine the nature of the reaction. The adsorption process was related to Freundlich isotherm which describes the multilayer and heterogeneous adsorption of molecules to the adsorbent surface. In conclusion, dead bacterial cells were immobilized on a polyether sulfone giving it the characteristics of a novel adsorptive membrane for the bioremediation of lead from wastewater. Thus this study proposed a new generation of adsorptive membranes based on polyethersulfone and dead bacterial cells.

show abstract

“…51 The pH PZC value of the SA-RPB was significantly lower than those of RPB and S-RPB, which could be attributed to the esterification reaction of hydroxyl on the raw material surface with the carboxyl group of citric acid to increase the carboxyl group on its surface. 20,52 Absorbents with pH values lower than pH PZC absorb compounds with a positive surface charge. 53 The MB dye with a molecular diameter of 0.8 nm 54 was smaller than the pore diameter of SA-RPB (15.97 nm, Table 2); hence, MB could easily penetrate the SA-RPB pore structure.…”

Section: Ph Pzc Determinationmentioning

confidence: 99%

Enhanced Adsorption of Methylene Blue by Chemically Modified Materials Derived from Phragmites australis Stems

Nguyệt

Nghi

Tiến

et al. 2022

ACSi

View full text Add to dashboard Cite

In this study, the biomass of Phragmites australis was chemically modified using NaOH and subsequently citric acid to produce an effective adsorbent named SA-RPB. The absorbent was characterized using XRD, SEM, BET, and FT-IR methods. The study’s findings indicated that the adsorbent existed mainly as cellulose crystals, contained micropores with an average diameter of 15.97 nm, and had a large number of hydroxyl and carboxyl groups on the surface. The adsorption process of SA-RPB was evaluated through the adsorption of methylene blue (MB) dye in aqueous solution. Adsorption kinetics showed that the pseudo-second-order model well described the adsorption process. The adsorption isotherm process satisfactorily fitted with the Langmuir model with the maximum adsorption capacity of 191.49 mg/g at 303 K. These findings show that MB may be efficiently removed from aqueous solutions using the adsorbent made from the raw biomass of Phragmites australis treated with NaOH and then citric acid.

show abstract

Citric Acid Functionalized Bougainvillea spectabilis: a Novel, Sustainable, and Cost-effective Biosorbent for Removal of Heavy Metal (Pb2+) from Waste Water

Cited by 21 publications

References 50 publications

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

An immobilized biosorbent from Paenibacillus dendritiformis dead cells and polyethersulfone for the sustainable bioremediation of lead from wastewater

Enhanced Adsorption of Methylene Blue by Chemically Modified Materials Derived from Phragmites australis Stems

Contact Info

Product

Resources

About