Industrial alkali lignin-derived biochar as highly efficient and low-cost adsorption material for Pb(II) from aquatic environment

Wu, Fangfang; Chen, Long; Hu, Peng; Wang, Yunxiao; Deng, Jie; Mi, Baobin

doi:10.1016/j.biortech.2020.124539

Cited by 76 publications

(21 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… 36 This represented chemical adsorption behavior, which was related to the adsorption functions of precipitation, surface complexation and cation exchange. 19 This was consistent with the observed rapid adsorption at the initial stage in this study. 37 The better fitting of the Elovich model (0.963 ≤ R 2 ≤ 0.988) further described the chemisorption processes occurring on the heterogeneous surface of biochar.…”

Section: Resultssupporting

confidence: 91%

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Zhao

Pan

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 91%

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Zhao

Pan

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Zhang et al (2020c) reported that poly (acrylic acid)-grafted chitosan and biochar composite (PAA/CTS/BC) exhibited high elimination capacity of ammonium, with the highest value of 149.25 mg/g at temperature of 25 °C, relatively greater than most reported the biochar-based materials. In addition, it has also been reported that the number of surface functional groups can be increased by modifying biochar by macromolecules, such as polyethyleneimine (Wang et al 2020), cyclodextrin (Qu et al 2020), humic acid (Zhao et al 2019), and lignin (Wu et al 2021b). These lead to better removal capacity for pollutants.…”

Section: Organic Modified Biocharmentioning

confidence: 99%

“…6B, the underlying process of removing Pb(II) using BC was primarily attributed to the ion exchange and complexation with unsaturated C bonds, while NBC also had the interactions between graphitic-/pyridinic-N and Pb(II). A novel, cost-effective, and excellent adsorption biochar adsorbent to remove Pb(II) (1003.71 mg/g in 5 min) was fabricated via the pyrolysis of waste alkali lignin (Wu et al 2021b). Mineral precipitation (88.72%) was the predominant reaction process, and surface complexation accounted for 8.25%.…”

Section: Heavy Metal Ionsmentioning

confidence: 99%

Biochar for the removal of contaminants from soil and water: a review

Qiu

Liu

Ling

et al. 2022

Biochar

339

View full text Add to dashboard Cite

Biochar shows significant potential to serve as a globally applicable material to remediate water and soil owing to the extensive availability of feedstocks and conducive physio-chemical surface characteristics. This review aims to highlight biochar production technologies, characteristics of biochar, and the latest advancements in immobilizing and eliminating heavy metal ions and organic pollutants in soil and water. Pyrolysis temperature, heat transfer rate, residence time, and type of feedstock are critical influential parameters. Biochar’s efficacy in managing contaminants relies on the pore size distribution, surface groups, and ion-exchange capacity. The molecular composition and physical architecture of biochar may be crucial when practically applied to water and soil. In general, biochar produced at relatively high pyrolysis temperatures can effectively manage organic pollutants via increasing surface area, hydrophobicity and microporosity. Biochar generated at lower temperatures is deemed to be more suitable for removing polar organic and inorganic pollutants through oxygen-containing functional groups, precipitation and electrostatic attraction. This review also presents the existing obstacles and future research direction related to biochar-based materials in immobilizing organic contaminants and heavy metal ions in effluents and soil. Graphical Abstract

show abstract

“…Sawdust biochar, which remains abundant cellulose, can remove heavy metals effectively due to the negatively charged surface and a large quantity of oxygen-containing groups (Komnitsas et al, 2016). In comparison, Pb(II) immobilization on lignin-biochar is proved a competitive method due to its fast mineral precipitation and surface complexation (Wu et al, 2021). For anionic pollutants, lignin-biochar can also provide e cient hydrogen bond sites and bene cial sur cial electrostatic attraction (Yoon et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Oxygen-containing groups in cellulose- and lignin-biochar: their roles in U(VI) adsorption

Liang

Feng²,

Qiu³

et al. 2022

Preprint

View full text Add to dashboard Cite

The adsorption behaviors of cellulose- and lignin-biochar depend on their oxygen-containing groups to some extent. In this study, a series of cellulose- and lignin-rich biochar was prepared from pakchoi and corncob, respectively named PBC and CBC, to evaluate their adsorption properties for U(VI). The maximal adsorption capacity of PBC 300 (obtained at 300 oC) was 46.62 mg g− 1 for U(VI), which was ⁓ 1.3 times higher than that of CBC 300 (35.60 mg g− 1). U(VI) adsorption on PBC and CBC were ascribed to the coordination interaction between oxygen-containing groups and U(VI). Interestingly, the main complexation groups were different in the both biochar due to the inherent evolution of cellulose and lignin. Volatile d-glucose chains in cellulose were apt to degrade rapidly, and the formed carboxyls acted as the main adsorption sites in PBC. However, the stable aromatic network in lignin led to a slow degradation, and more hydroxyls thus remained in CBC, which controlled U(VI) adsorption. This study obtained effective adsorbents of U(VI) and provided some essential insights into understanding this evolution and structure-function relationship of biochar.

show abstract

Industrial alkali lignin-derived biochar as highly efficient and low-cost adsorption material for Pb(II) from aquatic environment

Cited by 76 publications

References 44 publications

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Biochar for the removal of contaminants from soil and water: a review

Oxygen-containing groups in cellulose- and lignin-biochar: their roles in U(VI) adsorption

Contact Info

Product

Resources

About