Modification of biochar derived from sawdust and its application in removal of tetracycline and copper from aqueous solution: Adsorption mechanism and modelling

Zhou, Yaoyu; Liu, Xiaocheng; Xiang, Yujia; Wang, Pei; Zhang, Jiachao; Zhang, Fengfeng; Wei, Jianhong; Luo, Lin; Lei, Ming; Tang, Lin

doi:10.1016/j.biortech.2017.08.178

Cited by 578 publications

(161 citation statements)

References 45 publications

Supporting

Mentioning

147

Contrasting

Unclassified

Order By: Relevance

“…4 and Table 2, PSO (R 2 of 0.91-0.92) was more suitable than PFO (R 2 of 0.65) to described the interaction between SMX and A-PBC. In addition, Elovich was the best fitted kinetic model with lowest SSE (3.25-7.96) and highest R 2 (0.98) suggesting that strong chemisorptive interaction occurred on energetically heterogeneous surface of A-PBC [46].…”

Section: Adsorption Kinetics and Isothermsmentioning

confidence: 95%

“…Especially, the rate constants of 3 rd stage assigned to micropore diffusion was significantly lower than those of the previous two stages. This phenomenon is frequently observed during adsorption of organic contaminants resulted from decreased active adsorption sites on BCs [46]. Several literatures reported that isotherms of SMX adsorption onto various BCs could be fitted into either Langmuir [21] or Freundlich [8,[18][19][20] model.…”

Section: Adsorption Kinetics and Isothermsmentioning

confidence: 99%

See 1 more Smart Citation

Engineered biochar from pine wood: Characterization and potential application for removal of sulfamethoxazole in water

Jang

Yoo

Park

et al. 2018

Environmental Engineering Research

View full text Add to dashboard Cite

The adsorption of sulfamethoxazole (SMX) onto a NaOH-activated pine wood-derived biochar was investigated via batch experiments and models. Surprisingly, the maximum adsorption capacity of activated biochar for SMX (397.29 mg/g) was superior than those of pristine biochars from various feedstock, but comparable to those of commercially available activated carbons. Elovich kinetic and Freundlich isotherm models revealed the best fitted ones for the adsorption of SMX onto the activated biochar indicating chemisorptive interaction occurred on surface of the activated biochar. In addition, the intraparticle diffusion limitation was thought to be the major barrier for the adsorption of SMX on the activated biochar. The main mechanisms for the activated biochar would include hydrophobic, π-π interactions and hydrogen bonding. This was consistent with the changes in physicochemical properties of the activated biochar (e.g., increase in sp 2 and surface area, but decrease in the ratios of O/C and H/C).

show abstract

Section: Adsorption Kinetics and Isothermsmentioning

confidence: 95%

Section: Adsorption Kinetics and Isothermsmentioning

confidence: 99%

Engineered biochar from pine wood: Characterization and potential application for removal of sulfamethoxazole in water

Jang

Yoo

Park

et al. 2018

Environmental Engineering Research

View full text Add to dashboard Cite

show abstract

“…Many studies showed that the combined use of BCs with metal oxides/metal nanoparticles could achieve higher removal efficiency in removal of pharmaceutically active compounds (Table 3) (Shan et al 2016;Kim and Kan 2016;Taheran et al 2017). Zhou et al (2017) reported a novel iron and zinc co-doped sawdust BC (Fe/Zn biochar) and employed it to remove tetracycline (TET) from aqueous solution. The resultant composite presented a rough surface with evenly distributed crystal particles (Fig.…”

Section: Removal Of Pharmaceutically Active Compounds By Biochar-basementioning

confidence: 99%

Biochar-based materials and their applications in removal of organic contaminants from wastewater: state-of-the-art review

Huang

Song

Chen

et al. 2019

Biochar

272

104

View full text Add to dashboard Cite

As a class of famous carbon materials, biochars (BCs) and their derivative materials with excellent physicochemical properties and diversified functionalities present great potential in wastewater treatment fields. This review focuses on the latest development in reported biochar-based materials as superior adsorbents or catalysts for removing harmful organic contaminants from wastewater. The construction and properties of biochar-based materials are briefly introduced at the beginning. As one of the major factors affecting the properties of BCs, the wide diversity of feedstocks, such as agricultural and forest residues, industrial by-products as well as municipal wastes, endows BCs different chemical compositions and structures. Woody and herbaceous BCs usually have higher carbon contents, larger surface areas and strong aromaticity, which is in favor of the organic contaminant removal. Driven by the desire of more cost-effective materials, several types of biochar-based hybrid materials, such as magnetic BC composites (MBC), nanometal/nanometallic oxides/hydroxide BC composites and layered nanomaterial-coated BCs, as well as physically/chemically activated BCs, have also been developed. With the help of foreign materials, these types of hybrid BCs have excellent capacities to remove a wide range of organic contaminants, including organic dyestuff, phenols and chemical intermediates, as well as pharmaceutically active compounds, from aquatic solutions. Depending on the different types of biochar-based materials, organic contaminants can be removed by different mechanisms, such as physical adsorption, electrostatic interaction, π-π interaction and Fenton process, as well as photocatalytic degradation. In summary, the low cost, tunable surface chemistry and excellent physical-chemical properties of BCs allow it to be a potential material in organic contaminant removal. The combination of BCs with foreign materials endows BCs more functionalities and broader development opportunities. Considering the urgent demand of practical wastewater treatment, we hope more researches will focus on the applications and commercialization of biochar-based materials.

show abstract

“…2 However, owing to the improper treatment of pharmaceutical wastewater, its abuse in food additives used for livestock breeding or animal husbandry, and incomplete metabolism in human and animal bodies, excessive antibiotics are discharged into the environment. 3 As a result, they have been frequently detected in different environments and even in drinking water. Animals and humans could absorb excess environmental antibiotics through the water and food chains, resulting in antibiotic resistance.…”

Section: Introductionmentioning

confidence: 99%

Antibiotic removal by agricultural waste biochars with different forms of iron oxide

Chen

Shi

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

Modification of biochar derived from sawdust and its application in removal of tetracycline and copper from aqueous solution: Adsorption mechanism and modelling

Cited by 578 publications

References 45 publications

Engineered biochar from pine wood: Characterization and potential application for removal of sulfamethoxazole in water

Engineered biochar from pine wood: Characterization and potential application for removal of sulfamethoxazole in water

Biochar-based materials and their applications in removal of organic contaminants from wastewater: state-of-the-art review

Antibiotic removal by agricultural waste biochars with different forms of iron oxide

Contact Info

Product

Resources

About