Sequential removal of aniline and heavy metal ions by jute fiber biosorbents: A practical design of modifying adsorbent with reactive adsorbate

Huang, Qiang; Hu, Dongwen; Chen, Mingxin; Bao, Chongzhuo; Jin, Xin

doi:10.1016/j.molliq.2019.04.115

Cited by 33 publications

(6 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Based on above results it was concluded that initially Cr (VI) was adsorbed on JC-FeCs composites and then it was reduced to Cr2O3 and Cr (OH)3 by reduction process as reported by researchers (Cai et al,2019;Yang et al,2021;Diao et al,2018). reported in the literature (Huang et al,2019;Bao et al,2018;Bhaumik et al,2018). When compared the figure of N 1s before and after adsorption between it is found that area ratio for -N= and -NH decreases after adsorption while the area ratio of -NH + & -N= + increases significantly after adsorption as shown in Fig.…”

Section: Mechanism Behind Mitigation Of Cr (Vi)supporting

confidence: 53%

Mitigation of Cr (VI) from aqueous solution using jute charcoal iron composite (JC-FeCs): Response surface methodology (RSM)

Kumari

Tiwary

Yadav

2022

Preprint

View full text Add to dashboard Cite

In this study potential adsorbent jute charcoal iron composite (JC-FeCs) was synthesized via co precipitation of iron composite on jute charcoal and utilized it for Cr (VI) removal from water. The surface morphology of composite were performed with advance techniques such as BET, FESEM, EDX, FTIR, XPS, AFM and HR-TEM to analyzed the surface functional groups and elements on the prepared composite. The influence of pH, JC-FeCs dose, time, and concentration on % removal of Cr (VI) were examined. Noteworthy, the JC-FeCs reveals excellent removal capacity of Cr (VI) (Qmax 92.33 mg/g) at 303K which is much better than those adsorbent reported in the literature. XPS analysis of adsorbent shows the existence of both Cr (VI) and Cr (III) peaks on JC-FeCs surface, which implied that Cr (VI) adsorption occurs on composite. Herein Cr (VI) was first adsorbed on JC-FeCs via electrostatic force of attraction, later it was partially reduced to Cr (III). Non-linear isotherm study suggests monolayer adsorption occurs on homogenous surface of JC-FeCs adsorbent due to greater value of R2 than other isotherm. Kinetic studies suggest that adsorption followed pseudo second order model with greater R2 value. Thermodynamic study indicate endothermic, spontaneous and physisorption adsorption process. The predicted result of Cr (VI) removal obtains from RSM model and the observed % removal were found close to each other indicate that quadratic model best explain the adsorption process. Desorption study shows the good regeneration ability of adsorbent in alkaline medium. Thus, this bio-composite could work as an effective adsorbent for mitigation of Cr (VI) from water in environmental pollution cleanup.

show abstract

Section: Mechanism Behind Mitigation Of Cr (Vi)supporting

confidence: 53%

Mitigation of Cr (VI) from aqueous solution using jute charcoal iron composite (JC-FeCs): Response surface methodology (RSM)

Kumari

Tiwary

Yadav

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The maximum theoretical adsorption capacity of C/SL is as high as 283.6 mg g –1 for Pb 2+ and 276.8 mg g –1 for Cu 2+ , which is much higher than that of SL (105.1 mg g –1 for Pb 2+ and 87.5 mg g –1 for Cu 2+ ) (Figure S5). , In the actual adsorption process, the maximum adsorption capacity of C/SL for Pb is 281 mg g –1 and that of Cu is 276 mg g –1 . This is very close to the maximum predicted by Langmuir isotherm, which proves that the Langmuir isotherm model can better represent the actual adsorption process.…”

Section: Resultsmentioning

confidence: 99%

Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb²⁺ and Cu²⁺

et al. 2021

View full text Add to dashboard Cite

Removing heavy metal ions from water is an important issue to improve water quality. However, using cost-effective and more environmentally friendly adsorbents to achieve efficient adsorption capacity remains a challenge. Carbon spheres were prepared by the hydrothermal method and then combined with sodium lignosulfonate to form a lignosulfonate carbon (C/SL) adsorbent. C/SL achieved the adsorption of Pb 2+ and Cu 2+ after 60 min (the adsorption capacity was 281 mg g –1 for Pb 2+ and 276mg g –1 for Cu 2+ ) and had good selectivity and reusability (5 cycles). The simulated experimental data show that the pseudo-second-order kinetics and Langmuir isotherm are closer to the actual adsorption. Thermodynamic studies show that the adsorption of Pb 2+ and Cu 2+ is enhanced by the spontaneous process at higher temperature. This study also shows that functional groups such as hydroxyl and amino groups play an important role in the adsorption process.

show abstract

“…Several parallel mechanisms occur for the oxidation of Hg 0 elaborated in successive equations. Different multicomponent nanohybrids employed for adsorptional removal of HMs are summarized in Table 4 (121)(122)(123)(124)(125)(126)(127)(128)(129)(130)(131)(132)(133)(134)(135)(136)(137)(138)(139)(140).…”

Section: 𝐴𝐴𝐼𝐼𝐷𝐷𝑃𝑃𝑃𝑃 𝐷𝐷𝐷𝐷𝑃𝑃𝑃𝑃𝑝𝑝 𝑝𝑝𝑃𝑃𝑃𝑃𝑃𝑃𝑒𝑒𝑃𝑃𝑃𝑃𝐴𝐴mentioning

confidence: 99%

Photocatalytic and Adsorptional Removal of Heavy Metals from Contaminated Water using Nanohybrids

Guleria

2021

Materials Research Foundations

View full text Add to dashboard Cite

Water contaminated with heavy metals is a major menace for aquatic life and human health consequently its efficient removal remains a crucial challenge for researcher. The utilization of various photocatalytic nanohybrids to synergistically photo-reduce and adsorb heavy metals is a potent strategy to combat water pollution. This book chapter give an overview of the fundamental principle of photocatalysis and various single, binary, ternary and quaternary nanohybrids employed for simultaneous photoreduction and adsorption of heavy metals with its mechanistic insight. Further, conclusion and future prospective as well as limitation of available nanohybrids were addressed. We hope that this book chapter dispenses some noticeable information to heavy metal ions removal from polluted water.

show abstract

Sequential removal of aniline and heavy metal ions by jute fiber biosorbents: A practical design of modifying adsorbent with reactive adsorbate

Cited by 33 publications

References 60 publications

Mitigation of Cr (VI) from aqueous solution using jute charcoal iron composite (JC-FeCs): Response surface methodology (RSM)

Mitigation of Cr (VI) from aqueous solution using jute charcoal iron composite (JC-FeCs): Response surface methodology (RSM)

Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb²⁺ and Cu²⁺

Photocatalytic and Adsorptional Removal of Heavy Metals from Contaminated Water using Nanohybrids

Contact Info

Product

Resources

About

Sequential removal of aniline and heavy metal ions by jute fiber biosorbents: A practical design of modifying adsorbent with reactive adsorbate

Cited by 33 publications

References 60 publications

Mitigation of Cr (VI) from aqueous solution using jute charcoal iron composite (JC-FeCs): Response surface methodology (RSM)

Mitigation of Cr (VI) from aqueous solution using jute charcoal iron composite (JC-FeCs): Response surface methodology (RSM)

Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb2+ and Cu2+

Photocatalytic and Adsorptional Removal of Heavy Metals from Contaminated Water using Nanohybrids

Contact Info

Product

Resources

About

Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb²⁺ and Cu²⁺