Influence of Synthesis Methods on the High-Efficiency Removal of Cr(VI) from Aqueous Solution by Fe-Modified Magnetic Biochars.

Xiumei Jian, Shan Li, Yun Feng, Xueru Chen, Ruibin Kuang, Bosong Li, Yan Sun

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Article in ACS omega, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

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6citing papers in PubMed

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6 citing papers in PubMed.

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7 authors.

Xiumei JianKey Laboratory for Biobased Materials and Energy, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong 510640, China.

Shan LiCollege of Materials and Energy, South China Agricultural University, Guangzhou, Guangdong 510640, China.

Yun FengCollege of Materials and Energy, South China Agricultural University, Guangzhou, Guangdong 510640, China.

Xueru ChenCollege of Materials and Energy, South China Agricultural University, Guangzhou, Guangdong 510640, China.

Ruibin KuangInstitute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou, Guangdong 510640, China.

Bosong LiGuangzhou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Guangzhou, Guangdong 510140, China.

Yan SunKey Laboratory for Biobased Materials and Energy, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong 510640, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fe-modified biochars have been widely used in removal of Cr(VI) from water due to the resulting modified surface functional groups and magnetization property. However, few studies have synthetically investigated modification methods and synthesis parameters on the improvement of the removal efficiency of Cr(VI) by Fe-modified biochars. Herein, 10 types of corn straw-based magnetic biochars were produced using pre-modification and post-modification methods with various modifier ratios, and the highest heating temperature (HHT). Cr(VI) removal results suggest that the removal efficiency of pre-modified biochars ranged from 50.7 to 98.6%, which was much higher than that of post-modified (6.6-21.6%) and unmodified biochars (0.4-7.6%). The effect of synthesis methods on Cr(VI) adsorption was in the following order: Fe-modification method > modifier ratio > HHT. The adsorption kinetics and isotherm results of three types of pre-modified biochars were well fitted with the pseudo-second-order model (

Identifiers

PMID33324833

DOI10.1021/acsomega.0c04616

PMCPMC7726960

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.